LLVMFuzzerTestOneInput:
   24|  10.1k|{
   25|  10.1k|    constexpr auto var_count = 8;
   26|  10.1k|    constexpr auto bits      = 3;
   27|       |
   28|  10.1k|    using vector_t = immer::flex_vector<int, st_memory, bits, bits>;
   29|  10.1k|    using size_t   = std::uint8_t;
   30|       |
   31|  10.1k|    auto vars = std::array<vector_t, var_count>{};
   32|       |
   33|  10.1k|    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
   34|  10.1k|    auto is_valid_var_neq = [](auto other) {
   35|  10.1k|        return [=](auto idx) {
   36|  10.1k|            return idx >= 0 && idx < var_count && idx != other;
   37|  10.1k|        };
   38|  10.1k|    };
   39|  10.1k|    auto is_valid_index = [](auto& v) {
   40|  10.1k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
   41|  10.1k|    };
   42|  10.1k|    auto is_valid_size = [](auto& v) {
   43|  10.1k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
   44|  10.1k|    };
   45|  10.1k|    auto can_concat = [](const auto& v1, const auto& v2) {
   46|       |        // First, check max_size
   47|  10.1k|        if (v1.size() + v2.size() > vector_t::max_size()) {
   48|  10.1k|            return false;
   49|  10.1k|        }
   50|       |
   51|       |        // But just checking max_size is not sufficient, because there are other
   52|       |        // conditions for the validity of the tree, like shift constraints, for
   53|       |        // example.
   54|  10.1k|        try {
   55|       |            // Try to concat and catch an exception if it fails
   56|  10.1k|            const auto v3 = v1 + v2;
   57|  10.1k|            if (v3.size()) {
   58|  10.1k|                return true;
   59|  10.1k|            }
   60|  10.1k|        } catch (const immer::detail::rbts::invalid_tree&) {
   61|  10.1k|            return false;
   62|  10.1k|        }
   63|  10.1k|        return true;
   64|  10.1k|    };
   65|  10.1k|    auto can_compare = [](auto&& v) {
   66|       |        // avoid comparing vectors that are too big, and hence, slow to compare
   67|  10.1k|        return v.size() < (1 << 15);
   68|  10.1k|    };
   69|  10.1k|    return fuzzer_input{data, size}.run([&](auto& in) {
   70|  10.1k|        enum ops
   71|  10.1k|        {
   72|  10.1k|            op_push_back,
   73|  10.1k|            op_update,
   74|  10.1k|            op_take,
   75|  10.1k|            op_drop,
   76|  10.1k|            op_concat,
   77|  10.1k|            op_push_back_move,
   78|  10.1k|            op_update_move,
   79|  10.1k|            op_take_move,
   80|  10.1k|            op_drop_move,
   81|  10.1k|            op_concat_move_l,
   82|  10.1k|            op_concat_move_r,
   83|  10.1k|            op_concat_move_lr,
   84|  10.1k|            op_insert,
   85|  10.1k|            op_erase,
   86|  10.1k|            op_compare,
   87|  10.1k|        };
   88|  10.1k|        auto src = read<char>(in, is_valid_var);
   89|  10.1k|        auto dst = read<char>(in, is_valid_var);
   90|  10.1k|        switch (read<char>(in)) {
   91|  10.1k|        case op_push_back: {
   92|  10.1k|            vars[dst] = vars[src].push_back(42);
   93|  10.1k|            break;
   94|  10.1k|        }
   95|  10.1k|        case op_update: {
   96|  10.1k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
   97|  10.1k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
   98|  10.1k|            break;
   99|  10.1k|        }
  100|  10.1k|        case op_take: {
  101|  10.1k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  102|  10.1k|            vars[dst] = vars[src].take(idx);
  103|  10.1k|            break;
  104|  10.1k|        }
  105|  10.1k|        case op_drop: {
  106|  10.1k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  107|  10.1k|            vars[dst] = vars[src].drop(idx);
  108|  10.1k|            break;
  109|  10.1k|        }
  110|  10.1k|        case op_concat: {
  111|  10.1k|            auto src2 = read<char>(in, is_valid_var);
  112|  10.1k|            if (can_concat(vars[src], vars[src2]))
  113|  10.1k|                vars[dst] = vars[src] + vars[src2];
  114|  10.1k|            break;
  115|  10.1k|        }
  116|  10.1k|        case op_push_back_move: {
  117|  10.1k|            vars[dst] = std::move(vars[src]).push_back(21);
  118|  10.1k|            break;
  119|  10.1k|        }
  120|  10.1k|        case op_update_move: {
  121|  10.1k|            auto idx = read<size_t>(in, is_valid_index(vars[src]));
  122|  10.1k|            vars[dst] =
  123|  10.1k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
  124|  10.1k|            break;
  125|  10.1k|        }
  126|  10.1k|        case op_take_move: {
  127|  10.1k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  128|  10.1k|            vars[dst] = std::move(vars[src]).take(idx);
  129|  10.1k|            break;
  130|  10.1k|        }
  131|  10.1k|        case op_drop_move: {
  132|  10.1k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  133|  10.1k|            vars[dst] = std::move(vars[src]).drop(idx);
  134|  10.1k|            break;
  135|  10.1k|        }
  136|  10.1k|        case op_concat_move_l: {
  137|  10.1k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  138|  10.1k|            if (can_concat(vars[src], vars[src2]))
  139|  10.1k|                vars[dst] = std::move(vars[src]) + vars[src2];
  140|  10.1k|            break;
  141|  10.1k|        }
  142|  10.1k|        case op_concat_move_r: {
  143|  10.1k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  144|  10.1k|            if (can_concat(vars[src], vars[src2]))
  145|  10.1k|                vars[dst] = vars[src] + std::move(vars[src2]);
  146|  10.1k|            break;
  147|  10.1k|        }
  148|  10.1k|        case op_concat_move_lr: {
  149|  10.1k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  150|  10.1k|            if (can_concat(vars[src], vars[src2]))
  151|  10.1k|                vars[dst] = std::move(vars[src]) + std::move(vars[src2]);
  152|  10.1k|            break;
  153|  10.1k|        }
  154|  10.1k|        case op_compare: {
  155|  10.1k|            using std::swap;
  156|  10.1k|            if (can_compare(vars[src]) && vars[src] == vars[dst])
  157|  10.1k|                swap(vars[src], vars[dst]);
  158|  10.1k|            break;
  159|  10.1k|        }
  160|  10.1k|        case op_erase: {
  161|  10.1k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
  162|  10.1k|            vars[dst] = vars[src].erase(idx);
  163|  10.1k|            break;
  164|  10.1k|        }
  165|  10.1k|        case op_insert: {
  166|  10.1k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  167|  10.1k|            vars[dst] = vars[src].insert(idx, immer::box<int>{42});
  168|  10.1k|            break;
  169|  10.1k|        }
  170|  10.1k|        default:
  171|  10.1k|            break;
  172|  10.1k|        };
  173|  10.1k|        return true;
  174|  10.1k|    });
  175|  10.1k|}
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_:
   69|  2.20M|    return fuzzer_input{data, size}.run([&](auto& in) {
   70|  2.20M|        enum ops
   71|  2.20M|        {
   72|  2.20M|            op_push_back,
   73|  2.20M|            op_update,
   74|  2.20M|            op_take,
   75|  2.20M|            op_drop,
   76|  2.20M|            op_concat,
   77|  2.20M|            op_push_back_move,
   78|  2.20M|            op_update_move,
   79|  2.20M|            op_take_move,
   80|  2.20M|            op_drop_move,
   81|  2.20M|            op_concat_move_l,
   82|  2.20M|            op_concat_move_r,
   83|  2.20M|            op_concat_move_lr,
   84|  2.20M|            op_insert,
   85|  2.20M|            op_erase,
   86|  2.20M|            op_compare,
   87|  2.20M|        };
   88|  2.20M|        auto src = read<char>(in, is_valid_var);
   89|  2.20M|        auto dst = read<char>(in, is_valid_var);
   90|  2.20M|        switch (read<char>(in)) {
   91|   279k|        case op_push_back: {
  ------------------
  |  Branch (91:9): [True: 279k, False: 1.92M]
  ------------------
   92|   279k|            vars[dst] = vars[src].push_back(42);
   93|   279k|            break;
   94|      0|        }
   95|   204k|        case op_update: {
  ------------------
  |  Branch (95:9): [True: 204k, False: 1.99M]
  ------------------
   96|   204k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
   97|   204k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
   98|   204k|            break;
   99|      0|        }
  100|  1.82k|        case op_take: {
  ------------------
  |  Branch (100:9): [True: 1.82k, False: 2.19M]
  ------------------
  101|  1.82k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  102|  1.82k|            vars[dst] = vars[src].take(idx);
  103|  1.82k|            break;
  104|      0|        }
  105|  9.10k|        case op_drop: {
  ------------------
  |  Branch (105:9): [True: 9.10k, False: 2.19M]
  ------------------
  106|  9.10k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  107|  9.10k|            vars[dst] = vars[src].drop(idx);
  108|  9.10k|            break;
  109|      0|        }
  110|   782k|        case op_concat: {
  ------------------
  |  Branch (110:9): [True: 782k, False: 1.41M]
  ------------------
  111|   782k|            auto src2 = read<char>(in, is_valid_var);
  112|   782k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (112:17): [True: 742k, False: 40.1k]
  ------------------
  113|   742k|                vars[dst] = vars[src] + vars[src2];
  114|   782k|            break;
  115|      0|        }
  116|  10.3k|        case op_push_back_move: {
  ------------------
  |  Branch (116:9): [True: 10.3k, False: 2.19M]
  ------------------
  117|  10.3k|            vars[dst] = std::move(vars[src]).push_back(21);
  118|  10.3k|            break;
  119|      0|        }
  120|  16.4k|        case op_update_move: {
  ------------------
  |  Branch (120:9): [True: 16.4k, False: 2.18M]
  ------------------
  121|  16.4k|            auto idx = read<size_t>(in, is_valid_index(vars[src]));
  122|  16.4k|            vars[dst] =
  123|  16.4k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
  124|  16.4k|            break;
  125|      0|        }
  126|  33.9k|        case op_take_move: {
  ------------------
  |  Branch (126:9): [True: 33.9k, False: 2.16M]
  ------------------
  127|  33.9k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  128|  33.9k|            vars[dst] = std::move(vars[src]).take(idx);
  129|  33.9k|            break;
  130|      0|        }
  131|  75.4k|        case op_drop_move: {
  ------------------
  |  Branch (131:9): [True: 75.4k, False: 2.12M]
  ------------------
  132|  75.4k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  133|  75.4k|            vars[dst] = std::move(vars[src]).drop(idx);
  134|  75.4k|            break;
  135|      0|        }
  136|   330k|        case op_concat_move_l: {
  ------------------
  |  Branch (136:9): [True: 330k, False: 1.87M]
  ------------------
  137|   330k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  138|   330k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (138:17): [True: 327k, False: 2.54k]
  ------------------
  139|   327k|                vars[dst] = std::move(vars[src]) + vars[src2];
  140|   330k|            break;
  141|      0|        }
  142|  3.56k|        case op_concat_move_r: {
  ------------------
  |  Branch (142:9): [True: 3.56k, False: 2.19M]
  ------------------
  143|  3.56k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  144|  3.56k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (144:17): [True: 3.28k, False: 284]
  ------------------
  145|  3.28k|                vars[dst] = vars[src] + std::move(vars[src2]);
  146|  3.56k|            break;
  147|      0|        }
  148|   353k|        case op_concat_move_lr: {
  ------------------
  |  Branch (148:9): [True: 353k, False: 1.84M]
  ------------------
  149|   353k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  150|   353k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (150:17): [True: 345k, False: 7.74k]
  ------------------
  151|   345k|                vars[dst] = std::move(vars[src]) + std::move(vars[src2]);
  152|   353k|            break;
  153|      0|        }
  154|  35.9k|        case op_compare: {
  ------------------
  |  Branch (154:9): [True: 35.9k, False: 2.16M]
  ------------------
  155|  35.9k|            using std::swap;
  156|  35.9k|            if (can_compare(vars[src]) && vars[src] == vars[dst])
  ------------------
  |  Branch (156:17): [True: 28.7k, False: 7.14k]
  |  Branch (156:43): [True: 6.24k, False: 22.5k]
  ------------------
  157|  6.24k|                swap(vars[src], vars[dst]);
  158|  35.9k|            break;
  159|      0|        }
  160|  3.55k|        case op_erase: {
  ------------------
  |  Branch (160:9): [True: 3.55k, False: 2.19M]
  ------------------
  161|  3.55k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
  162|  3.55k|            vars[dst] = vars[src].erase(idx);
  163|  3.55k|            break;
  164|      0|        }
  165|  16.6k|        case op_insert: {
  ------------------
  |  Branch (165:9): [True: 16.6k, False: 2.18M]
  ------------------
  166|  16.6k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  167|  16.6k|            vars[dst] = vars[src].insert(idx, immer::box<int>{42});
  168|  16.6k|            break;
  169|      0|        }
  170|  34.9k|        default:
  ------------------
  |  Branch (170:9): [True: 34.9k, False: 2.16M]
  ------------------
  171|  34.9k|            break;
  172|  2.20M|        };
  173|  2.19M|        return true;
  174|  2.20M|    });
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_0clIcEEDaT_:
   33|  5.79M|    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
  ------------------
  |  Branch (33:48): [True: 5.50M, False: 286k]
  |  Branch (33:60): [True: 5.16M, False: 340k]
  ------------------
flex-vector-st.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_ENKUlSC_E_clIhEEDaSC_:
   40|   291k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
  ------------------
  |  Branch (40:39): [True: 291k, False: 0]
  |  Branch (40:51): [True: 224k, False: 67.8k]
  ------------------
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_:
   39|   224k|    auto is_valid_index = [](auto& v) {
   40|   224k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
   41|   224k|    };
flex-vector-st.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_ENKUlS2_E_clIiEEDaS2_:
   97|   204k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
flex-vector-st.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_ENKUlSC_E_clIhEEDaSC_:
   43|   148k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
  ------------------
  |  Branch (43:39): [True: 148k, False: 0]
  |  Branch (43:51): [True: 136k, False: 11.3k]
  ------------------
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_:
   42|   136k|    auto is_valid_size = [](auto& v) {
   43|   136k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
   44|   136k|    };
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_4clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEESB_EEDaRKT_RKT0_:
   45|  1.46M|    auto can_concat = [](const auto& v1, const auto& v2) {
   46|       |        // First, check max_size
   47|  1.46M|        if (v1.size() + v2.size() > vector_t::max_size()) {
  ------------------
  |  Branch (47:13): [True: 48.9k, False: 1.42M]
  ------------------
   48|  48.9k|            return false;
   49|  48.9k|        }
   50|       |
   51|       |        // But just checking max_size is not sufficient, because there are other
   52|       |        // conditions for the validity of the tree, like shift constraints, for
   53|       |        // example.
   54|  1.42M|        try {
   55|       |            // Try to concat and catch an exception if it fails
   56|  1.42M|            const auto v3 = v1 + v2;
   57|  1.42M|            if (v3.size()) {
  ------------------
  |  Branch (57:17): [True: 1.41M, False: 2.86k]
  ------------------
   58|  1.41M|                return true;
   59|  1.41M|            }
   60|  1.42M|        } catch (const immer::detail::rbts::invalid_tree&) {
   61|  1.56k|            return false;
   62|  1.56k|        }
   63|  1.29k|        return true;
   64|  1.42M|    };
flex-vector-st.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_ENKUlS2_E0_clIiEEDaS2_:
  123|  16.4k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
flex-vector-st.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_ENKUlS1_E_clIcEEDaS1_:
   35|   765k|        return [=](auto idx) {
   36|   765k|            return idx >= 0 && idx < var_count && idx != other;
  ------------------
  |  Branch (36:20): [True: 745k, False: 19.4k]
  |  Branch (36:32): [True: 715k, False: 30.1k]
  |  Branch (36:51): [True: 686k, False: 28.8k]
  ------------------
   37|   765k|        };
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_:
   34|   686k|    auto is_valid_var_neq = [](auto other) {
   35|   686k|        return [=](auto idx) {
   36|   686k|            return idx >= 0 && idx < var_count && idx != other;
   37|   686k|        };
   38|   686k|    };
flex-vector-st.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_5clIRN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaOT_:
   65|  35.9k|    auto can_compare = [](auto&& v) {
   66|       |        // avoid comparing vectors that are too big, and hence, slow to compare
   67|  35.9k|        return v.size() < (1 << 15);
   68|  35.9k|    };

flex-vector-st.cpp:_ZN12fuzzer_input3runIZ22LLVMFuzzerTestOneInputE3$_6EEiT_:
   50|  10.1k|    {
   51|  10.1k|        if (size_ > fuzzer_input_max_size)
  ------------------
  |  Branch (51:13): [True: 3, False: 10.1k]
  ------------------
   52|      3|            return 0;
   53|  10.1k|        try {
   54|  2.20M|            while (step(*this))
  ------------------
  |  Branch (54:20): [True: 2.19M, False: 10.1k]
  ------------------
   55|  2.19M|                continue;
   56|  10.1k|        } catch (const no_more_input&) {
   57|  10.1k|        };
   58|  10.1k|        return 0;
   59|  10.1k|    }
flex-vector-st.cpp:_Z4readIcZ22LLVMFuzzerTestOneInputE3$_0ET_R12fuzzer_inputT0_:
   70|  5.17M|{
   71|  5.17M|    auto x = read<T>(fz);
   72|  5.80M|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 626k, False: 5.17M]
  ------------------
   73|   626k|        x = read<T>(fz);
   74|  5.17M|    return x;
   75|  5.17M|}
_Z4readIcERKT_R12fuzzer_input:
   64|  8.76M|{
   65|  8.76M|    return *reinterpret_cast<const T*>(fz.next(sizeof(T), alignof(T)));
   66|  8.76M|}
_ZN12fuzzer_input4nextEmm:
   40|  9.20M|    {
   41|  9.20M|        auto& p = const_cast<void*&>(reinterpret_cast<const void*&>(data_));
   42|  9.20M|        auto r  = std::align(align, size, p, size_);
   43|  9.20M|        if (r == nullptr)
  ------------------
  |  Branch (43:13): [True: 10.1k, False: 9.19M]
  ------------------
   44|  10.1k|            throw no_more_input{};
   45|  9.19M|        return next(size);
   46|  9.20M|    }
_ZN12fuzzer_input4nextEm:
   30|  9.19M|    {
   31|  9.19M|        if (size_ < size)
  ------------------
  |  Branch (31:13): [True: 0, False: 9.19M]
  ------------------
   32|      0|            throw no_more_input{};
   33|  9.19M|        auto r = data_;
   34|  9.19M|        data_ += size;
   35|  9.19M|        size_ -= size;
   36|  9.19M|        return r;
   37|  9.19M|    }
flex-vector-st.cpp:_Z4readIhZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS2_13memory_policyINS2_11heap_policyINS2_8cpp_heapEEENS2_22unsafe_refcount_policyENS2_14no_lock_policyENS2_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_EUlSD_E_ESD_R12fuzzer_inputT0_:
   70|   224k|{
   71|   224k|    auto x = read<T>(fz);
   72|   292k|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 67.8k, False: 224k]
  ------------------
   73|  67.8k|        x = read<T>(fz);
   74|   224k|    return x;
   75|   224k|}
_Z4readIhERKT_R12fuzzer_input:
   64|   440k|{
   65|   440k|    return *reinterpret_cast<const T*>(fz.next(sizeof(T), alignof(T)));
   66|   440k|}
flex-vector-st.cpp:_Z4readIhZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS2_13memory_policyINS2_11heap_policyINS2_8cpp_heapEEENS2_22unsafe_refcount_policyENS2_14no_lock_policyENS2_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaRT_EUlSD_E_ESD_R12fuzzer_inputT0_:
   70|   136k|{
   71|   136k|    auto x = read<T>(fz);
   72|   148k|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 11.3k, False: 136k]
  ------------------
   73|  11.3k|        x = read<T>(fz);
   74|   136k|    return x;
   75|   136k|}
flex-vector-st.cpp:_Z4readIcZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_EUlS2_E_ES2_R12fuzzer_inputT0_:
   70|   686k|{
   71|   686k|    auto x = read<T>(fz);
   72|   765k|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 78.3k, False: 686k]
  ------------------
   73|  78.3k|        x = read<T>(fz);
   74|   686k|    return x;
   75|   686k|}

_ZN5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEEC2IiviEEOT_:
   85|  16.6k|        : impl_{detail::make<heap, holder>(std::forward<Arg>(arg))}
   86|  16.6k|    {
   87|  16.6k|    }
_ZN5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE6holderC2IJiEEEDpOT_:
   47|  16.6k|            : value(std::forward<Args>(args)...)
   48|  16.6k|        {
   49|  16.6k|        }
_ZNK5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEEcvRKiEv:
  142|  16.6k|    operator const T&() const { return get(); }
_ZNK5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE3getEv:
  139|  16.6k|    IMMER_NODISCARD const T& get() const { return impl_->value; }
_ZN5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEED2Ev:
  131|  16.6k|    {
  132|  16.6k|        if (impl_ && impl_->dec()) {
  ------------------
  |  Branch (132:13): [True: 16.6k, False: 0]
  |  Branch (132:22): [True: 16.6k, False: 0]
  ------------------
  133|  16.6k|            impl_->~holder();
  134|  16.6k|            heap::deallocate(sizeof(holder), impl_);
  135|  16.6k|        }
  136|  16.6k|    }

_ZN5immer6detail3csl3getINS_22unsafe_refcount_policyEEEDcRKNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEES3_NS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS3_NS1_7inheritINSC_5applyISA_E4type5owneeEvE4typeEE4typeEE4typeE:
  170|   672M|        {
  171|   672M|            return x.get_(type_t<U>{});
  172|   672M|        }
_ZNK5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_IS9_EEDcNS1_6type_tIT_EE:
  184|   672M|        {
  185|   672M|            return n.get_(t);
  186|   672M|        }
_ZNK5immer6detail3csl6memberINS_22unsafe_refcount_policyENS1_7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4typeEE4type4get_ENS1_6type_tIS3_EE:
  128|   719M|        const T& get_(type_t<T>) const { return d; }
_ZN5immer6detail3csl3getINS_22unsafe_refcount_policyEEEDcRKNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEES3_NS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14relaxed_data_tENS1_6memberIS3_NS1_7inheritINSC_5applyISA_E4type5owneeEvE4typeEE4typeEE4typeE:
  170|  47.4M|        {
  171|  47.4M|            return x.get_(type_t<U>{});
  172|  47.4M|        }
_ZNK5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14relaxed_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_IS9_EEDcNS1_6type_tIT_EE:
  184|  47.4M|        {
  185|  47.4M|            return n.get_(t);
  186|  47.4M|        }
_ZN5immer6detail3csl3getINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEEEDcRNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyIS7_NS_22unsafe_refcount_policyENS_14no_lock_policyES3_Lb0ELb1EEELj3ELj3EE14relaxed_data_tENS1_6memberISF_NS1_7inheritISA_vE4typeEE4typeEE4typeE:
  165|  46.4M|        {
  166|  46.4M|            return x.get_(type_t<U>{});
  167|  46.4M|        }
_ZN5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14relaxed_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_ISK_EEDcNS1_6type_tIT_EE:
  179|  46.4M|        {
  180|  46.4M|            return n.get_(t);
  181|  46.4M|        }
_ZN5immer6detail3csl7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4type4get_ENS1_6type_tISA_EE:
  102|   102M|        T& get_(type_t<T>) { return *this; }
_ZN5immer6detail3csl3getINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEEEDcRNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyIS7_NS_22unsafe_refcount_policyENS_14no_lock_policyES3_Lb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberISF_NS1_7inheritISA_vE4typeEE4typeEE4typeE:
  165|  55.6M|        {
  166|  55.6M|            return x.get_(type_t<U>{});
  167|  55.6M|        }
_ZN5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_ISK_EEDcNS1_6type_tIT_EE:
  179|  55.6M|        {
  180|  55.6M|            return n.get_(t);
  181|  55.6M|        }
_ZN5immer6detail3csl3getINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEEEDcRKNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyIS7_NS_22unsafe_refcount_policyENS_14no_lock_policyES3_Lb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberISF_NS1_7inheritISA_vE4typeEE4typeEE4typeE:
  170|   177k|        {
  171|   177k|            return x.get_(type_t<U>{});
  172|   177k|        }
_ZNK5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_ISK_EEDcNS1_6type_tIT_EE:
  184|   177k|        {
  185|   177k|            return n.get_(t);
  186|   177k|        }
_ZNK5immer6detail3csl7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4type4get_ENS1_6type_tISA_EE:
  103|   177k|        const T& get_(type_t<T>) const { return *this; }

_ZNK5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EdeEv:
   99|  8.15M|    ReferenceT operator*() const { return access_t::dereference(derived()); }
_ZN5immer6detail20iterator_core_access11dereferenceIRKNS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDcOT_:
   22|  8.15M|    {
   23|  8.15M|        return x.dereference();
   24|  8.15M|    }
_ZNK5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_E7derivedEv:
   86|  8.21M|    {
   87|  8.21M|        static_assert(std::is_base_of<iterator_facade, DerivedT>::value,
   88|  8.21M|                      "must pass a derived thing");
   89|  8.21M|        return *static_cast<const DerivedT*>(this);
   90|  8.21M|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EpLEl:
  151|   137k|    {
  152|   137k|        access_t::advance(derived(), n);
  153|   137k|        return derived();
  154|   137k|    }
_ZN5immer6detail20iterator_core_access7advanceIRNS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEElEEDcOT_T0_:
   46|   137k|    {
   47|   137k|        return x.advance(d);
   48|   137k|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_E7derivedEv:
   92|  14.5M|    {
   93|  14.5M|        static_assert(std::is_base_of<iterator_facade, DerivedT>::value,
   94|  14.5M|                      "must pass a derived thing");
   95|  14.5M|        return *static_cast<DerivedT*>(this);
   96|  14.5M|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EppEv:
  119|  7.13M|    {
  120|  7.13M|        access_t::increment(derived());
  121|  7.13M|        return derived();
  122|  7.13M|    }
_ZN5immer6detail20iterator_core_access9incrementIRNS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDcOT_:
   28|  7.13M|    {
   29|  7.13M|        return x.increment();
   30|  7.13M|    }
_ZNK5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EplISI_TnNSD_9enable_ifIXsrT_16is_random_accessEbE4typeELb1EEESC_l:
  164|  63.3k|    {
  165|  63.3k|        auto tmp = derived();
  166|  63.3k|        return tmp += n;
  167|  63.3k|    }

_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE17make_inner_n_intoEPvmj:
  213|  5.31M|    {
  214|  5.31M|        assert(n <= branches<B>);
  ------------------
  |  Branch (214:9): [True: 5.31M, False: 0]
  ------------------
  215|  5.31M|        assert(size >= sizeof_inner_n(n));
  ------------------
  |  Branch (215:9): [True: 5.31M, False: 0]
  ------------------
  216|  5.31M|        auto p                       = new (buffer) node_t;
  217|  5.31M|        p->impl.d.data.inner.relaxed = nullptr;
  218|  5.31M|#if IMMER_TAGGED_NODE
  219|  5.31M|        p->impl.d.kind = node_t::kind_t::inner;
  220|  5.31M|#endif
  221|  5.31M|        return p;
  222|  5.31M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14sizeof_inner_nEj:
  145|  21.3M|    {
  146|  21.3M|        return keep_headroom ? max_sizeof_inner : sizeof_packed_inner_n(n);
  ------------------
  |  Branch (146:16): [True: 21.3M, Folded]
  ------------------
  147|  21.3M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE3incEv:
  956|   169M|    {
  957|   169M|        refs(this).inc();
  958|   169M|        return this;
  959|   169M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4refsEPKSB_:
  203|   672M|    {
  204|   672M|        return auto_const_cast(get<refs_t>(x->impl));
  205|   672M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE16make_leaf_n_intoEPvmj:
  330|  2.59M|    {
  331|  2.59M|        assert(n <= branches<BL>);
  ------------------
  |  Branch (331:9): [True: 2.59M, False: 0]
  ------------------
  332|  2.59M|        assert(size >= sizeof_leaf_n(n));
  ------------------
  |  Branch (332:9): [True: 2.59M, False: 0]
  ------------------
  333|  2.59M|        auto p = new (buffer) node_t;
  334|  2.59M|#if IMMER_TAGGED_NODE
  335|  2.59M|        p->impl.d.kind = node_t::kind_t::leaf;
  336|  2.59M|#endif
  337|  2.59M|        return p;
  338|  2.59M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE13sizeof_leaf_nEj:
  160|  10.7M|    {
  161|  10.7M|        return keep_headroom ? max_sizeof_leaf : sizeof_packed_leaf_n(n);
  ------------------
  |  Branch (161:16): [True: 10.7M, Folded]
  ------------------
  162|  10.7M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE7relaxedEv:
  172|   931M|    {
  173|   931M|        IMMER_ASSERT_TAGGED(kind() == kind_t::inner);
  ------------------
  |  |   68|   931M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (173:9): [True: 931M, False: 0]
  ------------------
  174|   931M|        return impl.d.data.inner.relaxed;
  175|   931M|    }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4kindEv:
  168|  1.45G|    kind_t kind() const { return impl.d.kind; }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE3decEv:
  967|   362M|    bool dec() const { return refs(this).dec(); }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5innerEv:
  184|   420M|    {
  185|   420M|        IMMER_ASSERT_TAGGED(kind() == kind_t::inner);
  ------------------
  |  |   68|   420M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (185:9): [True: 420M, False: 0]
  ------------------
  186|   420M|        return impl.d.data.inner.get_storage_ptr();
  187|   420M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14delete_inner_rEPSB_j:
  832|  46.6M|    {
  833|  46.6M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::inner);
  ------------------
  |  |   68|  46.6M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (833:9): [True: 46.6M, False: 0]
  ------------------
  834|  46.6M|        auto r = p->relaxed();
  835|  46.6M|        assert(r);
  ------------------
  |  Branch (835:9): [True: 46.6M, False: 0]
  ------------------
  836|  46.6M|        static_if<!embed_relaxed>([&](auto) {
  837|  46.6M|            if (node_t::refs(r).dec())
  838|  46.6M|                heap::deallocate(node_t::ownee(r).owned()
  839|  46.6M|                                     ? node_t::max_sizeof_relaxed
  840|  46.6M|                                     : node_t::sizeof_relaxed_n(n),
  841|  46.6M|                                 r);
  842|  46.6M|        });
  843|  46.6M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_inner_r
  ------------------
  |  Branch (843:26): [True: 0, False: 46.6M]
  ------------------
  844|  46.6M|                                          : node_t::sizeof_inner_r_n(n),
  845|  46.6M|                         p);
  846|  46.6M|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14delete_inner_rEPSB_jENKUlT_E_clINS0_7empty_tEEEDaSD_:
  836|  46.6M|        static_if<!embed_relaxed>([&](auto) {
  837|  46.6M|            if (node_t::refs(r).dec())
  ------------------
  |  Branch (837:17): [True: 46.2M, False: 359k]
  ------------------
  838|  46.2M|                heap::deallocate(node_t::ownee(r).owned()
  ------------------
  |  Branch (838:34): [True: 0, False: 46.2M]
  ------------------
  839|  46.2M|                                     ? node_t::max_sizeof_relaxed
  840|  46.2M|                                     : node_t::sizeof_relaxed_n(n),
  841|  46.2M|                                 r);
  842|  46.6M|        });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4refsEPKNS0_3csl10member_twoINSB_14relaxed_data_tENSC_6memberIS7_NSC_7inheritINS9_5applyIS6_E4type5owneeEvE4typeEE4typeEE4typeE:
  196|  47.4M|    {
  197|  47.4M|        return auto_const_cast(get<refs_t>(*x));
  198|  47.4M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5owneeEPNS0_3csl10member_twoINSB_14relaxed_data_tENSC_6memberIS7_NSC_7inheritINS9_5applyIS6_E4type5owneeEvE4typeEE4typeEE4typeE:
  200|  46.4M|    static ownee_t& ownee(relaxed_t* x) { return get<ownee_t>(*x); }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE16sizeof_relaxed_nEj:
  155|  92.3M|    {
  156|  92.3M|        return keep_headroom ? max_sizeof_relaxed : sizeof_packed_relaxed_n(n);
  ------------------
  |  Branch (156:16): [True: 92.3M, Folded]
  ------------------
  157|  92.3M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5owneeEPSB_:
  210|  55.6M|    static ownee_t& ownee(node_t* x) { return get<ownee_t>(x->impl); }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE16sizeof_inner_r_nEj:
  150|  93.0M|    {
  151|  93.0M|        return keep_headroom ? max_sizeof_inner_r : sizeof_packed_inner_r_n(n);
  ------------------
  |  Branch (151:16): [True: 93.0M, Folded]
  ------------------
  152|  93.0M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11delete_leafEPSB_j:
  861|  2.99M|    {
  862|  2.99M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::leaf);
  ------------------
  |  |   68|  2.99M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (862:9): [True: 2.99M, False: 0]
  ------------------
  863|  2.99M|        detail::destroy_n(p->leaf(), n);
  864|  2.99M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_leaf
  ------------------
  |  Branch (864:26): [True: 0, False: 2.99M]
  ------------------
  865|  2.99M|                                          : node_t::sizeof_leaf_n(n),
  866|  2.99M|                         p);
  867|  2.99M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4leafEv:
  190|  18.6M|    {
  191|  18.6M|        IMMER_ASSERT_TAGGED(kind() == kind_t::leaf);
  ------------------
  |  |   68|  18.6M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (191:9): [True: 18.6M, False: 0]
  ------------------
  192|  18.6M|        return impl.d.data.leaf.get_storage_ptr();
  193|  18.6M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12delete_innerEPSB_j:
  808|  5.39M|    {
  809|  5.39M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::inner);
  ------------------
  |  |   68|  5.39M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (809:9): [True: 5.39M, False: 0]
  ------------------
  810|  5.39M|        assert(!p->relaxed());
  ------------------
  |  Branch (810:9): [True: 5.39M, False: 0]
  ------------------
  811|  5.39M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_inner
  ------------------
  |  Branch (811:26): [True: 0, False: 5.39M]
  ------------------
  812|  5.39M|                                          : node_t::sizeof_inner_n(n),
  813|  5.39M|                         p);
  814|  5.39M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE17copy_leaf_emplaceIiEEPSB_SD_jOT_:
  794|   236k|    {
  795|   236k|        auto dst = copy_leaf_n(n + 1, src, n);
  796|   236k|        IMMER_TRY {
  ------------------
  |  |   49|   236k|#define IMMER_TRY try
  ------------------
  797|   236k|            new (dst->leaf() + n) T(std::forward<U>(x));
  798|   236k|        }
  799|   236k|        IMMER_CATCH (...) {
  800|      0|            detail::destroy_n(dst->leaf(), n);
  801|      0|            heap::deallocate(node_t::sizeof_leaf_n(n + 1), dst);
  802|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  803|      0|        }
  804|   236k|        return dst;
  805|   236k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11copy_leaf_nEjPSB_j:
  696|   236k|    {
  697|   236k|        assert(allocn >= n);
  ------------------
  |  Branch (697:9): [True: 236k, False: 0]
  ------------------
  698|   236k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   236k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (698:9): [True: 236k, False: 0]
  ------------------
  699|   236k|        auto dst = make_leaf_n(allocn);
  700|   236k|        IMMER_TRY {
  ------------------
  |  |   49|   236k|#define IMMER_TRY try
  ------------------
  701|   236k|            detail::uninitialized_copy(
  702|   236k|                src->leaf(), src->leaf() + n, dst->leaf());
  703|   236k|        }
  704|   236k|        IMMER_CATCH (...) {
  705|      0|            heap::deallocate(node_t::sizeof_leaf_n(allocn), dst);
  706|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  707|      0|        }
  708|   236k|        return dst;
  709|   236k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11make_leaf_nEj:
  341|  2.59M|    {
  342|  2.59M|        assert(n <= branches<BL>);
  ------------------
  |  Branch (342:9): [True: 2.59M, False: 0]
  ------------------
  343|  2.59M|        auto m = heap::allocate(sizeof_leaf_n(n));
  344|  2.59M|        return make_leaf_n_into(m, sizeof_leaf_n(n), n);
  345|  2.59M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11make_leaf_nIiEEPSB_jOT_:
  470|  43.4k|    {
  471|  43.4k|        assert(n >= 1);
  ------------------
  |  Branch (471:9): [True: 43.4k, False: 0]
  ------------------
  472|  43.4k|        auto p = make_leaf_n(n);
  473|  43.4k|        IMMER_TRY {
  ------------------
  |  |   49|  43.4k|#define IMMER_TRY try
  ------------------
  474|  43.4k|            new (p->leaf()) T(std::forward<U>(x));
  475|  43.4k|        }
  476|  43.4k|        IMMER_CATCH (...) {
  477|      0|            heap::deallocate(node_t::sizeof_leaf_n(n), p);
  478|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  479|      0|        }
  480|  43.4k|        return p;
  481|  43.4k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE13do_copy_innerEPSB_SC_j:
  558|  5.10M|    {
  559|  5.10M|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|  5.10M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (559:9): [True: 5.10M, False: 0]
  ------------------
  560|  5.10M|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  5.10M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (560:9): [True: 5.10M, False: 0]
  ------------------
  561|  5.10M|        auto p = src->inner();
  562|  5.10M|        inc_nodes(p, n);
  563|  5.10M|        std::copy(p, p + n, dst->inner());
  564|  5.10M|        return dst;
  565|  5.10M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9inc_nodesEPPSB_j:
  970|  39.8M|    {
  971|   177M|        for (auto i = p, e = i + n; i != e; ++i)
  ------------------
  |  Branch (971:37): [True: 138M, False: 39.8M]
  ------------------
  972|   138M|            refs(*i).inc();
  973|  39.8M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14copy_inner_r_nEjPSB_j:
  588|   495k|    {
  589|   495k|        assert(allocn >= n);
  ------------------
  |  Branch (589:9): [True: 495k, False: 0]
  ------------------
  590|   495k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|   495k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (590:9): [True: 495k, False: 0]
  ------------------
  591|   495k|        auto dst = make_inner_r_n(allocn);
  592|   495k|        return do_copy_inner_r(dst, src, n);
  593|   495k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15do_copy_inner_rEPSB_SC_j:
  610|   515k|    {
  611|   515k|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|   515k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (611:9): [True: 515k, False: 0]
  ------------------
  612|   515k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|   515k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (612:9): [True: 515k, False: 0]
  ------------------
  613|   515k|        auto src_r = src->relaxed();
  614|   515k|        auto dst_r = dst->relaxed();
  615|   515k|        inc_nodes(src->inner(), n);
  616|   515k|        std::copy(src->inner(), src->inner() + n, dst->inner());
  617|   515k|        std::copy(src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  618|   515k|        dst_r->d.count = n;
  619|   515k|        return dst;
  620|   515k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14make_inner_r_nEj:
  243|  46.0M|    {
  244|  46.0M|        assert(n <= branches<B>);
  ------------------
  |  Branch (244:9): [True: 46.0M, False: 0]
  ------------------
  245|  46.0M|        auto mp = heap::allocate(sizeof_inner_r_n(n));
  246|  46.0M|        auto mr = static_cast<void*>(nullptr);
  247|  46.0M|        if (embed_relaxed) {
  ------------------
  |  Branch (247:13): [Folded, False: 46.0M]
  ------------------
  248|      0|            mr = reinterpret_cast<unsigned char*>(mp) + sizeof_inner_n(n);
  249|  46.0M|        } else {
  250|  46.0M|            IMMER_TRY {
  ------------------
  |  |   49|  46.0M|#define IMMER_TRY try
  ------------------
  251|  46.0M|                mr = heap::allocate(sizeof_relaxed_n(n), norefs_tag{});
  252|  46.0M|            }
  253|  46.0M|            IMMER_CATCH (...) {
  254|      0|                heap::deallocate(sizeof_inner_r_n(n), mp);
  255|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  256|      0|            }
  257|  46.0M|        }
  258|  46.0M|        auto p                       = new (mp) node_t;
  259|  46.0M|        auto r                       = new (mr) relaxed_t;
  260|  46.0M|        r->d.count                   = 0;
  261|  46.0M|        p->impl.d.data.inner.relaxed = r;
  262|  46.0M|#if IMMER_TAGGED_NODE
  263|  46.0M|        p->impl.d.kind = node_t::kind_t::inner;
  264|  46.0M|#endif
  265|  46.0M|        return p;
  266|  46.0M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9make_pathEjPSB_:
  498|  1.31M|    {
  499|  1.31M|        IMMER_ASSERT_TAGGED(node->kind() == kind_t::leaf);
  ------------------
  |  |   68|  1.31M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (499:9): [True: 1.31M, False: 0]
  ------------------
  500|  1.31M|        if (shift == endshift<B, BL>)
  ------------------
  |  Branch (500:13): [True: 1.12M, False: 190k]
  ------------------
  501|  1.12M|            return node;
  502|   190k|        else {
  503|   190k|            auto n = node_t::make_inner_n(1);
  504|   190k|            IMMER_TRY {
  ------------------
  |  |   49|   190k|#define IMMER_TRY try
  ------------------
  505|   190k|                n->inner()[0] = make_path(shift - B, node);
  506|   190k|            }
  507|   190k|            IMMER_CATCH (...) {
  508|      0|                heap::deallocate(node_t::sizeof_inner_n(1), n);
  509|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  510|      0|            }
  511|   190k|            return n;
  512|   190k|        }
  513|  1.31M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12make_inner_nEj:
  224|  5.31M|    {
  225|  5.31M|        assert(n <= branches<B>);
  ------------------
  |  Branch (225:9): [True: 5.31M, False: 0]
  ------------------
  226|  5.31M|        auto m = heap::allocate(sizeof_inner_n(n));
  227|  5.31M|        return make_inner_n_into(m, sizeof_inner_n(n), n);
  228|  5.31M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9copy_leafEPSB_j:
  666|   216k|    {
  667|   216k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   216k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (667:9): [True: 216k, False: 0]
  ------------------
  668|   216k|        auto dst = make_leaf_n(n);
  669|   216k|        IMMER_TRY {
  ------------------
  |  |   49|   216k|#define IMMER_TRY try
  ------------------
  670|   216k|            detail::uninitialized_copy(
  671|   216k|                src->leaf(), src->leaf() + n, dst->leaf());
  672|   216k|        }
  673|   216k|        IMMER_CATCH (...) {
  674|      0|            heap::deallocate(node_t::sizeof_leaf_n(n), dst);
  675|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  676|      0|        }
  677|   216k|        return dst;
  678|   216k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15make_inner_sr_nEjPNS0_3csl10member_twoINSB_14relaxed_data_tENSC_6memberIS7_NSC_7inheritINS9_5applyIS6_E4type5owneeEvE4typeEE4typeEE4typeE:
  269|   364k|    {
  270|   364k|        return static_if<embed_relaxed, node_t*>(
  271|   364k|            [&](auto) { return node_t::make_inner_r_n(n); },
  272|   364k|            [&](auto) {
  273|   364k|                auto p =
  274|   364k|                    new (heap::allocate(node_t::sizeof_inner_r_n(n))) node_t;
  275|   364k|                assert(r->d.count >= n);
  276|   364k|                node_t::refs(r).inc();
  277|   364k|                p->impl.d.data.inner.relaxed = r;
  278|   364k|#if IMMER_TAGGED_NODE
  279|   364k|                p->impl.d.kind = node_t::kind_t::inner;
  280|   364k|#endif
  281|   364k|                return p;
  282|   364k|            });
  283|   364k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15make_inner_sr_nEjPNS0_3csl10member_twoINSB_14relaxed_data_tENSC_6memberIS7_NSC_7inheritINS9_5applyIS6_E4type5owneeEvE4typeEE4typeEE4typeEENKUlT_E0_clINS0_7empty_tEEEDaSS_:
  272|   364k|            [&](auto) {
  273|   364k|                auto p =
  274|   364k|                    new (heap::allocate(node_t::sizeof_inner_r_n(n))) node_t;
  275|   364k|                assert(r->d.count >= n);
  ------------------
  |  Branch (275:17): [True: 364k, False: 0]
  ------------------
  276|   364k|                node_t::refs(r).inc();
  277|   364k|                p->impl.d.data.inner.relaxed = r;
  278|   364k|#if IMMER_TAGGED_NODE
  279|   364k|                p->impl.d.kind = node_t::kind_t::inner;
  280|   364k|#endif
  281|   364k|                return p;
  282|   364k|            });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE24do_copy_inner_replace_srEPSB_SC_jjSC_:
  652|   364k|    {
  653|   364k|        if (embed_relaxed)
  ------------------
  |  Branch (653:13): [Folded, False: 364k]
  ------------------
  654|      0|            return do_copy_inner_replace_r(dst, src, n, offset, child);
  655|   364k|        else {
  656|   364k|            auto p = src->inner();
  657|   364k|            inc_nodes(p, offset);
  658|   364k|            inc_nodes(p + offset + 1, n - offset - 1);
  659|   364k|            std::copy(p, p + n, dst->inner());
  660|   364k|            dst->inner()[offset] = child;
  661|   364k|            return dst;
  662|   364k|        }
  663|   364k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE21do_copy_inner_replaceEPSB_SC_jjSC_:
  569|  42.0k|    {
  570|  42.0k|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|  42.0k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (570:9): [True: 42.0k, False: 0]
  ------------------
  571|  42.0k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  42.0k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (571:9): [True: 42.0k, False: 0]
  ------------------
  572|  42.0k|        auto p = src->inner();
  573|  42.0k|        inc_nodes(p, offset);
  574|  42.0k|        inc_nodes(p + offset + 1, n - offset - 1);
  575|  42.0k|        std::copy(p, p + n, dst->inner());
  576|  42.0k|        dst->inner()[offset] = child;
  577|  42.0k|        return dst;
  578|  42.0k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12copy_inner_nEjPSB_j:
  543|  8.44k|    {
  544|  8.44k|        assert(allocn >= n);
  ------------------
  |  Branch (544:9): [True: 8.44k, False: 0]
  ------------------
  545|  8.44k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  8.44k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (545:9): [True: 8.44k, False: 0]
  ------------------
  546|  8.44k|        auto dst = make_inner_n(allocn);
  547|  8.44k|        return do_copy_inner(dst, src, n);
  548|  8.44k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12copy_inner_rEPSB_j:
  581|  4.08k|    {
  582|  4.08k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  4.08k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (582:9): [True: 4.08k, False: 0]
  ------------------
  583|  4.08k|        auto dst = make_inner_r_n(n);
  584|  4.08k|        return do_copy_inner_r(dst, src, n);
  585|  4.08k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE13compute_shiftEv:
  977|  13.8M|    {
  978|  13.8M|        if (kind() == kind_t::leaf)
  ------------------
  |  Branch (978:13): [True: 1.04M, False: 12.8M]
  ------------------
  979|  1.04M|            return endshift<B, BL>;
  980|  12.8M|        else
  981|  12.8M|            return B + inner()[0]->compute_shift();
  982|  13.8M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5checkEjm:
  986|  1.04M|    {
  987|       |#if IMMER_DEBUG_DEEP_CHECK
  988|       |        assert(size > 0);
  989|       |        if (shift == endshift<B, BL>) {
  990|       |            IMMER_ASSERT_TAGGED(kind() == kind_t::leaf);
  991|       |            assert(size <= branches<BL>);
  992|       |        } else if (auto r = relaxed()) {
  993|       |            auto count = r->d.count;
  994|       |            assert(count > 0);
  995|       |            assert(count <= branches<B>);
  996|       |            if (r->d.sizes[count - 1] != size) {
  997|       |                IMMER_TRACE_F("check");
  998|       |                IMMER_TRACE_E(r->d.sizes[count - 1]);
  999|       |                IMMER_TRACE_E(size);
 1000|       |            }
 1001|       |            assert(r->d.sizes[count - 1] == size);
 1002|       |            for (auto i = 1u; i < count; ++i)
 1003|       |                assert(r->d.sizes[i - 1] < r->d.sizes[i]);
 1004|       |            auto last_size = size_t{};
 1005|       |            for (auto i = 0u; i < count; ++i) {
 1006|       |                assert(inner()[i]->check(shift - B, r->d.sizes[i] - last_size));
 1007|       |                last_size = r->d.sizes[i];
 1008|       |            }
 1009|       |        } else {
 1010|       |            assert(size <= branches<B> << shift);
 1011|       |            auto count =
 1012|       |                (size >> shift) + (size - ((size >> shift) << shift) > 0);
 1013|       |            assert(count <= branches<B>);
 1014|       |            if (count) {
 1015|       |                for (auto i = 1u; i < count - 1; ++i)
 1016|       |                    assert(inner()[i]->check(shift - B, 1 << shift));
 1017|       |                assert(inner()[count - 1]->check(
 1018|       |                    shift - B, size - ((count - 1) << shift)));
 1019|       |            }
 1020|       |        }
 1021|       |#endif // IMMER_DEBUG_DEEP_CHECK
 1022|  1.04M|        return true;
 1023|  1.04M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9copy_leafEPSB_jj:
  778|   942k|    {
  779|   942k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   942k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (779:9): [True: 942k, False: 0]
  ------------------
  780|   942k|        auto dst = make_leaf_n(last - idx);
  781|   942k|        IMMER_TRY {
  ------------------
  |  |   49|   942k|#define IMMER_TRY try
  ------------------
  782|   942k|            detail::uninitialized_copy(
  783|   942k|                src->leaf() + idx, src->leaf() + last, dst->leaf());
  784|   942k|        }
  785|   942k|        IMMER_CATCH (...) {
  786|      0|            heap::deallocate(node_t::sizeof_leaf_n(last - idx), dst);
  787|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  788|      0|        }
  789|   942k|        return dst;
  790|   942k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9copy_leafEPSB_jSC_j:
  712|   957k|    {
  713|   957k|        IMMER_ASSERT_TAGGED(src1->kind() == kind_t::leaf);
  ------------------
  |  |   68|   957k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (713:9): [True: 957k, False: 0]
  ------------------
  714|   957k|        IMMER_ASSERT_TAGGED(src2->kind() == kind_t::leaf);
  ------------------
  |  |   68|   957k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (714:9): [True: 957k, False: 0]
  ------------------
  715|   957k|        auto dst = make_leaf_n(n1 + n2);
  716|   957k|        IMMER_TRY {
  ------------------
  |  |   49|   957k|#define IMMER_TRY try
  ------------------
  717|   957k|            detail::uninitialized_copy(
  718|   957k|                src1->leaf(), src1->leaf() + n1, dst->leaf());
  719|   957k|        }
  720|   957k|        IMMER_CATCH (...) {
  721|      0|            heap::deallocate(node_t::sizeof_leaf_n(n1 + n2), dst);
  722|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  723|      0|        }
  724|   957k|        IMMER_TRY {
  ------------------
  |  |   49|   957k|#define IMMER_TRY try
  ------------------
  725|   957k|            detail::uninitialized_copy(
  726|   957k|                src2->leaf(), src2->leaf() + n2, dst->leaf() + n1);
  727|   957k|        }
  728|   957k|        IMMER_CATCH (...) {
  729|      0|            detail::destroy_n(dst->leaf(), n1);
  730|      0|            heap::deallocate(node_t::sizeof_leaf_n(n1 + n2), dst);
  731|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  732|      0|        }
  733|   957k|        return dst;
  734|   957k|    }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10can_mutateENS9_5applyIS6_E4type4editE:
  870|  2.81M|    {
  871|  2.81M|        return refs(this).unique() || ownee(this).can_mutate(e);
  ------------------
  |  Branch (871:16): [True: 2.63M, False: 177k]
  |  Branch (871:39): [True: 0, False: 177k]
  ------------------
  872|  2.81M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5owneeEPKSB_:
  207|   177k|    {
  208|   177k|        return get<ownee_t>(x->impl);
  209|   177k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_j:
  681|  42.4k|    {
  682|  42.4k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|  42.4k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (682:9): [True: 42.4k, False: 0]
  ------------------
  683|  42.4k|        auto dst = make_leaf_e(e);
  684|  42.4k|        IMMER_TRY {
  ------------------
  |  |   49|  42.4k|#define IMMER_TRY try
  ------------------
  685|  42.4k|            detail::uninitialized_copy(
  686|  42.4k|                src->leaf(), src->leaf() + n, dst->leaf());
  687|  42.4k|        }
  688|  42.4k|        IMMER_CATCH (...) {
  689|      0|            heap::deallocate(node_t::max_sizeof_leaf, dst);
  690|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  691|      0|        }
  692|  42.4k|        return dst;
  693|  42.4k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11make_leaf_eENS9_5applyIS6_E4type4editE:
  348|   400k|    {
  349|   400k|        auto p   = new (heap::allocate(max_sizeof_leaf)) node_t;
  350|   400k|        ownee(p) = e;
  351|   400k|#if IMMER_TAGGED_NODE
  352|   400k|        p->impl.d.kind = node_t::kind_t::leaf;
  353|   400k|#endif
  354|   400k|        return p;
  355|   400k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11make_leaf_eIiEEPSB_NS9_5applyIS6_E4type4editEOT_:
  485|  6.82k|    {
  486|  6.82k|        auto p = make_leaf_e(e);
  487|  6.82k|        IMMER_TRY {
  ------------------
  |  |   49|  6.82k|#define IMMER_TRY try
  ------------------
  488|  6.82k|            new (p->leaf()) T(std::forward<U>(x));
  489|  6.82k|        }
  490|  6.82k|        IMMER_CATCH (...) {
  491|      0|            heap::deallocate(node_t::max_sizeof_leaf, p);
  492|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  493|      0|        }
  494|  6.82k|        return p;
  495|  6.82k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE24ensure_mutable_relaxed_nENS9_5applyIS6_E4type4editEj:
  930|   202k|    {
  931|   202k|        auto src_r = relaxed();
  932|   202k|        return static_if<embed_relaxed, relaxed_t*>(
  933|   202k|            [&](auto) { return src_r; },
  934|   202k|            [&](auto) {
  935|   202k|                if (node_t::refs(src_r).unique() ||
  936|   202k|                    node_t::ownee(src_r).can_mutate(e))
  937|   202k|                    return src_r;
  938|   202k|                else {
  939|   202k|                    auto dst_r =
  940|   202k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  941|   202k|                    if (src_r) {
  942|   202k|                        std::copy(
  943|   202k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  944|   202k|                        if (node_t::refs(src_r).dec())
  945|   202k|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  946|   202k|                                             src_r);
  947|   202k|                    }
  948|   202k|                    dst_r->d.count                   = n;
  949|   202k|                    node_t::ownee(dst_r)             = e;
  950|   202k|                    return impl.d.data.inner.relaxed = dst_r;
  951|   202k|                }
  952|   202k|            });
  953|   202k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE24ensure_mutable_relaxed_nENS9_5applyIS6_E4type4editEjENKUlT_E0_clINS0_7empty_tEEEDaSG_:
  934|   202k|            [&](auto) {
  935|   202k|                if (node_t::refs(src_r).unique() ||
  ------------------
  |  Branch (935:21): [True: 196k, False: 5.55k]
  ------------------
  936|  5.55k|                    node_t::ownee(src_r).can_mutate(e))
  ------------------
  |  Branch (936:21): [True: 0, False: 5.55k]
  ------------------
  937|   196k|                    return src_r;
  938|  5.55k|                else {
  939|  5.55k|                    auto dst_r =
  940|  5.55k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  941|  5.55k|                    if (src_r) {
  ------------------
  |  Branch (941:25): [True: 5.55k, False: 0]
  ------------------
  942|  5.55k|                        std::copy(
  943|  5.55k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  944|  5.55k|                        if (node_t::refs(src_r).dec())
  ------------------
  |  Branch (944:29): [True: 0, False: 5.55k]
  ------------------
  945|      0|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  946|      0|                                             src_r);
  947|  5.55k|                    }
  948|  5.55k|                    dst_r->d.count                   = n;
  949|  5.55k|                    node_t::ownee(dst_r)             = e;
  950|  5.55k|                    return impl.d.data.inner.relaxed = dst_r;
  951|  5.55k|                }
  952|   202k|            });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14copy_inner_r_eENS9_5applyIS6_E4type4editEPSB_j:
  596|  15.4k|    {
  597|  15.4k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  15.4k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (597:9): [True: 15.4k, False: 0]
  ------------------
  598|  15.4k|        auto dst = make_inner_r_e(e);
  599|  15.4k|        return do_copy_inner_r(dst, src, n);
  600|  15.4k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14make_inner_r_eENS9_5applyIS6_E4type4editE:
  286|   161k|    {
  287|   161k|        auto mp = heap::allocate(max_sizeof_inner_r);
  288|   161k|        auto mr = static_cast<void*>(nullptr);
  289|   161k|        if (embed_relaxed) {
  ------------------
  |  Branch (289:13): [Folded, False: 161k]
  ------------------
  290|      0|            mr = reinterpret_cast<unsigned char*>(mp) + max_sizeof_inner;
  291|   161k|        } else {
  292|   161k|            IMMER_TRY {
  ------------------
  |  |   49|   161k|#define IMMER_TRY try
  ------------------
  293|   161k|                mr = heap::allocate(max_sizeof_relaxed, norefs_tag{});
  294|   161k|            }
  295|   161k|            IMMER_CATCH (...) {
  296|      0|                heap::deallocate(max_sizeof_inner_r, mp);
  297|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  298|      0|            }
  299|   161k|        }
  300|   161k|        auto p   = new (mp) node_t;
  301|   161k|        auto r   = new (mr) relaxed_t;
  302|   161k|        ownee(p) = e;
  303|   161k|        static_if<!embed_relaxed>([&](auto) { node_t::ownee(r) = e; });
  304|   161k|        r->d.count                   = 0;
  305|   161k|        p->impl.d.data.inner.relaxed = r;
  306|   161k|#if IMMER_TAGGED_NODE
  307|   161k|        p->impl.d.kind = node_t::kind_t::inner;
  308|   161k|#endif
  309|   161k|        return p;
  310|   161k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14make_inner_r_eENS9_5applyIS6_E4type4editEENKUlT_E_clINS0_7empty_tEEEDaSG_:
  303|   161k|        static_if<!embed_relaxed>([&](auto) { node_t::ownee(r) = e; });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11make_path_eENS9_5applyIS6_E4type4editEjPSB_:
  516|   391k|    {
  517|   391k|        IMMER_ASSERT_TAGGED(node->kind() == kind_t::leaf);
  ------------------
  |  |   68|   391k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (517:9): [True: 391k, False: 0]
  ------------------
  518|   391k|        if (shift == endshift<B, BL>)
  ------------------
  |  Branch (518:13): [True: 338k, False: 52.7k]
  ------------------
  519|   338k|            return node;
  520|  52.7k|        else {
  521|  52.7k|            auto n = node_t::make_inner_e(e);
  522|  52.7k|            IMMER_TRY {
  ------------------
  |  |   49|  52.7k|#define IMMER_TRY try
  ------------------
  523|  52.7k|                n->inner()[0] = make_path_e(e, shift - B, node);
  524|  52.7k|            }
  525|  52.7k|            IMMER_CATCH (...) {
  526|      0|                heap::deallocate(node_t::max_sizeof_inner, n);
  527|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  528|      0|            }
  529|  52.7k|            return n;
  530|  52.7k|        }
  531|   391k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12make_inner_eENS9_5applyIS6_E4type4editE:
  231|  83.0k|    {
  232|  83.0k|        auto m                       = heap::allocate(max_sizeof_inner);
  233|  83.0k|        auto p                       = new (m) node_t;
  234|  83.0k|        ownee(p)                     = e;
  235|  83.0k|        p->impl.d.data.inner.relaxed = nullptr;
  236|  83.0k|#if IMMER_TAGGED_NODE
  237|  83.0k|        p->impl.d.kind = node_t::kind_t::inner;
  238|  83.0k|#endif
  239|  83.0k|        return p;
  240|  83.0k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE12copy_inner_eENS9_5applyIS6_E4type4editEPSB_j:
  551|  21.2k|    {
  552|  21.2k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  21.2k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (552:9): [True: 21.2k, False: 0]
  ------------------
  553|  21.2k|        auto dst = make_inner_e(e);
  554|  21.2k|        return do_copy_inner(dst, src, n);
  555|  21.2k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15copy_inner_sr_eENS9_5applyIS6_E4type4editEPSB_j:
  603|  21.9k|    {
  604|  21.9k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  21.9k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (604:9): [True: 21.9k, False: 0]
  ------------------
  605|  21.9k|        auto dst = make_inner_sr_e(e, src->relaxed());
  606|  21.9k|        return do_copy_inner_sr(dst, src, n);
  607|  21.9k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15make_inner_sr_eENS9_5applyIS6_E4type4editEPNS0_3csl10member_twoINSB_14relaxed_data_tENSG_6memberIS7_NSG_7inheritINSE_5owneeEvE4typeEE4typeEE4typeE:
  313|  21.9k|    {
  314|  21.9k|        return static_if<embed_relaxed, node_t*>(
  315|  21.9k|            [&](auto) { return node_t::make_inner_r_e(e); },
  316|  21.9k|            [&](auto) {
  317|  21.9k|                auto p =
  318|  21.9k|                    new (heap::allocate(node_t::max_sizeof_inner_r)) node_t;
  319|  21.9k|                node_t::refs(r).inc();
  320|  21.9k|                p->impl.d.data.inner.relaxed = r;
  321|  21.9k|                node_t::ownee(p)             = e;
  322|  21.9k|#if IMMER_TAGGED_NODE
  323|  21.9k|                p->impl.d.kind = node_t::kind_t::inner;
  324|  21.9k|#endif
  325|  21.9k|                return p;
  326|  21.9k|            });
  327|  21.9k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE15make_inner_sr_eENS9_5applyIS6_E4type4editEPNS0_3csl10member_twoINSB_14relaxed_data_tENSG_6memberIS7_NSG_7inheritINSE_5owneeEvE4typeEE4typeEE4typeEENKUlT_E0_clINS0_7empty_tEEEDaST_:
  316|  21.9k|            [&](auto) {
  317|  21.9k|                auto p =
  318|  21.9k|                    new (heap::allocate(node_t::max_sizeof_inner_r)) node_t;
  319|  21.9k|                node_t::refs(r).inc();
  320|  21.9k|                p->impl.d.data.inner.relaxed = r;
  321|  21.9k|                node_t::ownee(p)             = e;
  322|  21.9k|#if IMMER_TAGGED_NODE
  323|  21.9k|                p->impl.d.kind = node_t::kind_t::inner;
  324|  21.9k|#endif
  325|  21.9k|                return p;
  326|  21.9k|            });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE16do_copy_inner_srEPSB_SC_j:
  640|  21.9k|    {
  641|  21.9k|        if (embed_relaxed)
  ------------------
  |  Branch (641:13): [Folded, False: 21.9k]
  ------------------
  642|      0|            return do_copy_inner_r(dst, src, n);
  643|  21.9k|        else {
  644|  21.9k|            inc_nodes(src->inner(), n);
  645|  21.9k|            std::copy(src->inner(), src->inner() + n, dst->inner());
  646|  21.9k|            return dst;
  647|  21.9k|        }
  648|  21.9k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_jj:
  763|   351k|    {
  764|   351k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   351k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (764:9): [True: 351k, False: 0]
  ------------------
  765|   351k|        auto dst = make_leaf_e(e);
  766|   351k|        IMMER_TRY {
  ------------------
  |  |   49|   351k|#define IMMER_TRY try
  ------------------
  767|   351k|            detail::uninitialized_copy(
  768|   351k|                src->leaf() + idx, src->leaf() + last, dst->leaf());
  769|   351k|        }
  770|   351k|        IMMER_CATCH (...) {
  771|      0|            heap::deallocate(max_sizeof_leaf, dst);
  772|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  773|      0|        }
  774|   351k|        return dst;
  775|   351k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE22ensure_mutable_relaxedENS9_5applyIS6_E4type4editE:
  877|   232k|    {
  878|   232k|        auto src_r = relaxed();
  879|   232k|        return static_if<embed_relaxed, relaxed_t*>(
  880|   232k|            [&](auto) { return src_r; },
  881|   232k|            [&](auto) {
  882|   232k|                if (node_t::refs(src_r).unique() ||
  883|   232k|                    node_t::ownee(src_r).can_mutate(e))
  884|   232k|                    return src_r;
  885|   232k|                else {
  886|   232k|                    auto dst_r = impl.d.data.inner.relaxed =
  887|   232k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  888|   232k|                    if (src_r) {
  889|   232k|                        auto n = dst_r->d.count = src_r->d.count;
  890|   232k|                        std::copy(
  891|   232k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  892|   232k|                        if (node_t::refs(src_r).dec())
  893|   232k|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  894|   232k|                                             src_r);
  895|   232k|                    }
  896|   232k|                    node_t::ownee(dst_r) = e;
  897|   232k|                    return dst_r;
  898|   232k|                }
  899|   232k|            });
  900|   232k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE22ensure_mutable_relaxedENS9_5applyIS6_E4type4editEENKUlT_E0_clINS0_7empty_tEEEDaSG_:
  881|   232k|            [&](auto) {
  882|   232k|                if (node_t::refs(src_r).unique() ||
  ------------------
  |  Branch (882:21): [True: 211k, False: 20.9k]
  ------------------
  883|  20.9k|                    node_t::ownee(src_r).can_mutate(e))
  ------------------
  |  Branch (883:21): [True: 0, False: 20.9k]
  ------------------
  884|   211k|                    return src_r;
  885|  20.9k|                else {
  886|  20.9k|                    auto dst_r = impl.d.data.inner.relaxed =
  887|  20.9k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  888|  20.9k|                    if (src_r) {
  ------------------
  |  Branch (888:25): [True: 20.9k, False: 0]
  ------------------
  889|  20.9k|                        auto n = dst_r->d.count = src_r->d.count;
  890|  20.9k|                        std::copy(
  891|  20.9k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  892|  20.9k|                        if (node_t::refs(src_r).dec())
  ------------------
  |  Branch (892:29): [True: 0, False: 20.9k]
  ------------------
  893|      0|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  894|      0|                                             src_r);
  895|  20.9k|                    }
  896|  20.9k|                    node_t::ownee(dst_r) = e;
  897|  20.9k|                    return dst_r;
  898|  20.9k|                }
  899|   232k|            });
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_jSG_j:
  738|    235|    {
  739|    235|        IMMER_ASSERT_TAGGED(src1->kind() == kind_t::leaf);
  ------------------
  |  |   68|    235|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (739:9): [True: 235, False: 0]
  ------------------
  740|    235|        IMMER_ASSERT_TAGGED(src2->kind() == kind_t::leaf);
  ------------------
  |  |   68|    235|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (740:9): [True: 235, False: 0]
  ------------------
  741|    235|        auto dst = make_leaf_e(e);
  742|    235|        IMMER_TRY {
  ------------------
  |  |   49|    235|#define IMMER_TRY try
  ------------------
  743|    235|            detail::uninitialized_copy(
  744|    235|                src1->leaf(), src1->leaf() + n1, dst->leaf());
  745|    235|        }
  746|    235|        IMMER_CATCH (...) {
  747|      0|            heap::deallocate(max_sizeof_leaf, dst);
  748|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  749|      0|        }
  750|    235|        IMMER_TRY {
  ------------------
  |  |   49|    235|#define IMMER_TRY try
  ------------------
  751|    235|            detail::uninitialized_copy(
  752|    235|                src2->leaf(), src2->leaf() + n2, dst->leaf() + n1);
  753|    235|        }
  754|    235|        IMMER_CATCH (...) {
  755|      0|            detail::destroy_n(dst->leaf(), n1);
  756|      0|            heap::deallocate(max_sizeof_leaf, dst);
  757|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  758|      0|        }
  759|    235|        return dst;
  760|    235|    }

_ZN5immer6detail4rbts11dec_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  523|   239M|    {
  524|   239M|        using node_t = node_type<Pos>;
  525|   239M|        auto node    = p.node();
  526|   239M|        if (node->dec()) {
  ------------------
  |  Branch (526:13): [True: 46.6M, False: 193M]
  ------------------
  527|  46.6M|            p.each(this_t{});
  528|  46.6M|            node_t::delete_inner_r(node, p.count());
  529|  46.6M|        }
  530|   239M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  16.6M|    {
  535|  16.6M|        using node_t = node_type<Pos>;
  536|  16.6M|        auto node    = p.node();
  537|  16.6M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 1.15M, False: 15.5M]
  ------------------
  538|  1.15M|            p.each(this_t{});
  539|  1.15M|            node_t::delete_inner(node, p.count());
  540|  1.15M|        }
  541|  16.6M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  4.32M|    {
  546|  4.32M|        using node_t = node_type<Pos>;
  547|  4.32M|        auto node    = p.node();
  548|  4.32M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 615k, False: 3.70M]
  ------------------
  549|   615k|            node_t::delete_leaf(node, p.count());
  550|   615k|        }
  551|  4.32M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  1.11M|    {
  546|  1.11M|        using node_t = node_type<Pos>;
  547|  1.11M|        auto node    = p.node();
  548|  1.11M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 621k, False: 494k]
  ------------------
  549|   621k|            node_t::delete_leaf(node, p.count());
  550|   621k|        }
  551|  1.11M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  9.57M|    {
  535|  9.57M|        using node_t = node_type<Pos>;
  536|  9.57M|        auto node    = p.node();
  537|  9.57M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 103k, False: 9.47M]
  ------------------
  538|   103k|            p.each(this_t{});
  539|   103k|            node_t::delete_inner(node, p.count());
  540|   103k|        }
  541|  9.57M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  4.17M|    {
  535|  4.17M|        using node_t = node_type<Pos>;
  536|  4.17M|        auto node    = p.node();
  537|  4.17M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 4.12M, False: 56.5k]
  ------------------
  538|  4.12M|            p.each(this_t{});
  539|  4.12M|            node_t::delete_inner(node, p.count());
  540|  4.12M|        }
  541|  4.17M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  3.00M|    {
  535|  3.00M|        using node_t = node_type<Pos>;
  536|  3.00M|        auto node    = p.node();
  537|  3.00M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 0, False: 3.00M]
  ------------------
  538|      0|            p.each(this_t{});
  539|      0|            node_t::delete_inner(node, p.count());
  540|      0|        }
  541|  3.00M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  80.4M|    {
  546|  80.4M|        using node_t = node_type<Pos>;
  547|  80.4M|        auto node    = p.node();
  548|  80.4M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 1.76M, False: 78.7M]
  ------------------
  549|  1.76M|            node_t::delete_leaf(node, p.count());
  550|  1.76M|        }
  551|  80.4M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  2.81M|    {
  546|  2.81M|        using node_t = node_type<Pos>;
  547|  2.81M|        auto node    = p.node();
  548|  2.81M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 0, False: 2.81M]
  ------------------
  549|      0|            node_t::delete_leaf(node, p.count());
  550|      0|        }
  551|  2.81M|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_SI_j:
  791|   497k|    {
  792|   497k|        auto level    = pos.shift();
  793|   497k|        auto idx      = pos.count() - 1;
  794|   497k|        auto children = pos.size(idx);
  795|   497k|        auto new_idx =
  796|   497k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (796:13): [True: 15.4k, False: 481k]
  |  Branch (796:47): [True: 803, False: 480k]
  ------------------
  797|   497k|        auto new_child = static_cast<node_t*>(nullptr);
  798|   497k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (798:13): [True: 4.13k, False: 493k]
  ------------------
  799|  4.13k|            return nullptr;
  800|   493k|        else if (idx == new_idx) {
  ------------------
  |  Branch (800:18): [True: 480k, False: 12.1k]
  ------------------
  801|   480k|            new_child = pos.last_oh_csh(this_t{}, idx, children, tail, ts);
  802|   480k|            if (!new_child) {
  ------------------
  |  Branch (802:17): [True: 4.86k, False: 476k]
  ------------------
  803|  4.86k|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (803:21): [True: 1.77k, False: 3.09k]
  ------------------
  804|  1.77k|                    new_child = node_t::make_path(level - B, tail);
  805|  3.09k|                else
  806|  3.09k|                    return nullptr;
  807|  4.86k|            }
  808|   480k|        } else
  809|  12.1k|            new_child = node_t::make_path(level - B, tail);
  810|   490k|        IMMER_TRY {
  ------------------
  |  |   49|   490k|#define IMMER_TRY try
  ------------------
  811|   490k|            auto count = new_idx + 1;
  812|   490k|            auto new_parent =
  813|   490k|                node_t::copy_inner_r_n(count, pos.node(), new_idx);
  814|   490k|            auto new_relaxed              = new_parent->relaxed();
  815|   490k|            new_parent->inner()[new_idx]  = new_child;
  816|   490k|            new_relaxed->d.sizes[new_idx] = pos.size() + ts;
  817|   490k|            new_relaxed->d.count          = count;
  818|   490k|            assert(new_relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (818:13): [True: 490k, False: 0]
  ------------------
  819|   490k|            return new_parent;
  820|   490k|        }
  821|   490k|        IMMER_CATCH (...) {
  822|      0|            auto shift = pos.shift();
  823|      0|            auto size  = new_idx == idx ? children + ts : ts;
  ------------------
  |  Branch (823:26): [True: 0, False: 0]
  ------------------
  824|      0|            if (shift > BL) {
  ------------------
  |  Branch (824:17): [True: 0, False: 0]
  ------------------
  825|      0|                tail->inc();
  826|      0|                dec_inner(new_child, shift - B, size);
  827|      0|            }
  828|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  829|      0|        }
  830|   490k|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_SJ_DpOT0_:
  834|   320k|    {
  835|   320k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 320k, False: 0]
  ------------------
  836|   320k|        auto idx        = pos.index(pos.size() - 1);
  837|   320k|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|   320k|        auto count      = new_idx + 1;
  839|   320k|        auto new_parent = node_t::make_inner_n(count);
  840|   320k|        IMMER_TRY {
  ------------------
  |  |   49|   320k|#define IMMER_TRY try
  ------------------
  841|   320k|            new_parent->inner()[new_idx] =
  842|   320k|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 309k, False: 11.0k]
  ------------------
  843|       |                               /* otherwise */
  844|   320k|                               : node_t::make_path(pos.shift() - B, tail);
  845|   320k|        }
  846|   320k|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|   320k|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|   320k|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_SI_DpOT0_:
  834|  3.98M|    {
  835|  3.98M|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 3.98M, False: 0]
  ------------------
  836|  3.98M|        auto idx        = pos.index(pos.size() - 1);
  837|  3.98M|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|  3.98M|        auto count      = new_idx + 1;
  839|  3.98M|        auto new_parent = node_t::make_inner_n(count);
  840|  3.98M|        IMMER_TRY {
  ------------------
  |  |   49|  3.98M|#define IMMER_TRY try
  ------------------
  841|  3.98M|            new_parent->inner()[new_idx] =
  842|  3.98M|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 2.95M, False: 1.02M]
  ------------------
  843|       |                               /* otherwise */
  844|  3.98M|                               : node_t::make_path(pos.shift() - B, tail);
  845|  3.98M|        }
  846|  3.98M|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|  3.98M|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|  3.98M|    }
_ZN5immer6detail4rbts9dec_innerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEvPT_jm:
  562|    559|{
  563|    559|    visit_maybe_relaxed_sub(node, shift, size, dec_visitor());
  564|    559|}
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEJEEEPSC_OT_SI_DpOT0_:
  834|   763k|    {
  835|   763k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 763k, False: 0]
  ------------------
  836|   763k|        auto idx        = pos.index(pos.size() - 1);
  837|   763k|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|   763k|        auto count      = new_idx + 1;
  839|   763k|        auto new_parent = node_t::make_inner_n(count);
  840|   763k|        IMMER_TRY {
  ------------------
  |  |   49|   763k|#define IMMER_TRY try
  ------------------
  841|   763k|            new_parent->inner()[new_idx] =
  842|   763k|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 719k, False: 44.3k]
  ------------------
  843|       |                               /* otherwise */
  844|   763k|                               : node_t::make_path(pos.shift() - B, tail);
  845|   763k|        }
  846|   763k|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|   763k|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|   763k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|   179k|    {
  503|   179k|        auto offset = pos.index(idx);
  504|   179k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|   179k|        IMMER_TRY {
  ------------------
  |  |   49|   179k|#define IMMER_TRY try
  ------------------
  506|   179k|            node->leaf()[offset] =
  507|   179k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|   179k|            return node;
  509|   179k|        }
  510|   179k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|   179k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  466|   364k|    {
  467|   364k|        auto offset = pos.index(idx);
  468|   364k|        auto count  = pos.count();
  469|   364k|        auto node   = node_t::make_inner_sr_n(count, pos.relaxed());
  470|   364k|        IMMER_TRY {
  ------------------
  |  |   49|   364k|#define IMMER_TRY try
  ------------------
  471|   364k|            auto child = pos.towards_oh(this_t{}, idx, offset, fn);
  472|   364k|            node_t::do_copy_inner_replace_sr(
  473|   364k|                node, pos.node(), count, offset, child);
  474|   364k|            return node;
  475|   364k|        }
  476|   364k|        IMMER_CATCH (...) {
  477|      0|            node_t::delete_inner_r(node, count);
  478|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  479|      0|        }
  480|   364k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  24.4k|    {
  485|  24.4k|        auto offset = pos.index(idx);
  486|  24.4k|        auto count  = pos.count();
  487|  24.4k|        auto node   = node_t::make_inner_n(count);
  488|  24.4k|        IMMER_TRY {
  ------------------
  |  |   49|  24.4k|#define IMMER_TRY try
  ------------------
  489|  24.4k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  24.4k|            node_t::do_copy_inner_replace(
  491|  24.4k|                node, pos.node(), count, offset, child);
  492|  24.4k|            return node;
  493|  24.4k|        }
  494|  24.4k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  24.4k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|  16.3k|    {
  503|  16.3k|        auto offset = pos.index(idx);
  504|  16.3k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|  16.3k|        IMMER_TRY {
  ------------------
  |  |   49|  16.3k|#define IMMER_TRY try
  ------------------
  506|  16.3k|            node->leaf()[offset] =
  507|  16.3k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|  16.3k|            return node;
  509|  16.3k|        }
  510|  16.3k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|  16.3k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_8full_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  14.9k|    {
  485|  14.9k|        auto offset = pos.index(idx);
  486|  14.9k|        auto count  = pos.count();
  487|  14.9k|        auto node   = node_t::make_inner_n(count);
  488|  14.9k|        IMMER_TRY {
  ------------------
  |  |   49|  14.9k|#define IMMER_TRY try
  ------------------
  489|  14.9k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  14.9k|            node_t::do_copy_inner_replace(
  491|  14.9k|                node, pos.node(), count, offset, child);
  492|  14.9k|            return node;
  493|  14.9k|        }
  494|  14.9k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  14.9k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_8leaf_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|  8.04k|    {
  503|  8.04k|        auto offset = pos.index(idx);
  504|  8.04k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|  8.04k|        IMMER_TRY {
  ------------------
  |  |   49|  8.04k|#define IMMER_TRY try
  ------------------
  506|  8.04k|            node->leaf()[offset] =
  507|  8.04k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|  8.04k|            return node;
  509|  8.04k|        }
  510|  8.04k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|  8.04k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  2.60k|    {
  485|  2.60k|        auto offset = pos.index(idx);
  486|  2.60k|        auto count  = pos.count();
  487|  2.60k|        auto node   = node_t::make_inner_n(count);
  488|  2.60k|        IMMER_TRY {
  ------------------
  |  |   49|  2.60k|#define IMMER_TRY try
  ------------------
  489|  2.60k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  2.60k|            node_t::do_copy_inner_replace(
  491|  2.60k|                node, pos.node(), count, offset, child);
  492|  2.60k|            return node;
  493|  2.60k|        }
  494|  2.60k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  2.60k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1096|  30.5k|    {
 1097|  30.5k|        auto idx = pos.index(last);
 1098|  30.5k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1098:13): [True: 30.5k, Folded]
  |  Branch (1098:25): [True: 23.3k, False: 7.21k]
  ------------------
 1099|  23.3k|            return pos.towards_oh(this_t{}, last, idx);
 1100|  23.3k|        } else {
 1101|  7.21k|            using std::get;
 1102|  7.21k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1103|  7.21k|            auto next = get<1>(subs);
 1104|  7.21k|            auto ts   = get<2>(subs);
 1105|  7.21k|            auto tail = get<3>(subs);
 1106|  7.21k|            IMMER_TRY {
  ------------------
  |  |   49|  7.21k|#define IMMER_TRY try
  ------------------
 1107|  7.21k|                if (next) {
  ------------------
  |  Branch (1107:21): [True: 4.53k, False: 2.68k]
  ------------------
 1108|  4.53k|                    auto count = idx + 1;
 1109|  4.53k|                    auto newn  = node_t::copy_inner_r_n(count, pos.node(), idx);
 1110|  4.53k|                    auto newr  = newn->relaxed();
 1111|  4.53k|                    newn->inner()[idx] = next;
 1112|  4.53k|                    newr->d.sizes[idx] = last + 1 - ts;
 1113|  4.53k|                    newr->d.count      = count;
 1114|  4.53k|                    assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (1114:21): [True: 4.53k, False: 0]
  ------------------
 1115|  4.53k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1116|  4.53k|                } else if (idx == 0) {
  ------------------
  |  Branch (1116:28): [True: 0, False: 2.68k]
  ------------------
 1117|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1118|  2.68k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1118:28): [True: 2.68k, Folded]
  |  Branch (1118:40): [True: 1.80k, False: 887]
  |  Branch (1118:52): [True: 1.23k, False: 563]
  ------------------
 1119|  1.23k|                    auto newn = pos.node()->inner()[0];
 1120|  1.23k|                    return std::make_tuple(
 1121|  1.23k|                        pos.shift() - B, newn->inc(), ts, tail);
 1122|  1.45k|                } else {
 1123|  1.45k|                    auto newn = node_t::copy_inner_r(pos.node(), idx);
 1124|  1.45k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1125|  1.45k|                }
 1126|  7.21k|            }
 1127|  7.21k|            IMMER_CATCH (...) {
 1128|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1128:17): [True: 0, False: 0]
  |  Branch (1128:17): [True: 0, False: 0]
  |  Branch (1128:17): [True: 0, False: 0]
  ------------------
 1129|      0|                if (next)
  ------------------
  |  Branch (1129:21): [True: 0, False: 0]
  ------------------
 1130|      0|                    dec_inner(next,
 1131|      0|                              pos.shift() - B,
 1132|      0|                              last + 1 - ts - pos.size_before(idx));
 1133|      0|                if (tail)
  ------------------
  |  Branch (1133:21): [True: 0, False: 0]
  ------------------
 1134|      0|                    dec_leaf(tail, ts);
 1135|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1136|      0|            }
 1137|  7.21k|        }
 1138|  30.5k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  1.63k|    {
 1182|  1.63k|        auto old_tail_size = pos.count();
 1183|  1.63k|        auto new_tail_size = pos.index(last) + 1;
 1184|  1.63k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 348, False: 1.28k]
  ------------------
 1185|  1.63k|                                 ? pos.node()->inc()
 1186|  1.63k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  1.63k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  1.63k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  4.66k|    {
 1182|  4.66k|        auto old_tail_size = pos.count();
 1183|  4.66k|        auto new_tail_size = pos.index(last) + 1;
 1184|  4.66k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.21k, False: 3.45k]
  ------------------
 1185|  4.66k|                                 ? pos.node()->inc()
 1186|  4.66k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  4.66k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  4.66k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1096|  4.90k|    {
 1097|  4.90k|        auto idx = pos.index(last);
 1098|  4.90k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1098:13): [Folded, False: 4.90k]
  |  Branch (1098:25): [True: 0, False: 0]
  ------------------
 1099|      0|            return pos.towards_oh(this_t{}, last, idx);
 1100|  4.90k|        } else {
 1101|  4.90k|            using std::get;
 1102|  4.90k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1103|  4.90k|            auto next = get<1>(subs);
 1104|  4.90k|            auto ts   = get<2>(subs);
 1105|  4.90k|            auto tail = get<3>(subs);
 1106|  4.90k|            IMMER_TRY {
  ------------------
  |  |   49|  4.90k|#define IMMER_TRY try
  ------------------
 1107|  4.90k|                if (next) {
  ------------------
  |  Branch (1107:21): [True: 1.15k, False: 3.75k]
  ------------------
 1108|  1.15k|                    auto count = idx + 1;
 1109|  1.15k|                    auto newn  = node_t::copy_inner_r_n(count, pos.node(), idx);
 1110|  1.15k|                    auto newr  = newn->relaxed();
 1111|  1.15k|                    newn->inner()[idx] = next;
 1112|  1.15k|                    newr->d.sizes[idx] = last + 1 - ts;
 1113|  1.15k|                    newr->d.count      = count;
 1114|  1.15k|                    assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (1114:21): [True: 1.15k, False: 0]
  ------------------
 1115|  1.15k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1116|  3.75k|                } else if (idx == 0) {
  ------------------
  |  Branch (1116:28): [True: 1.11k, False: 2.63k]
  ------------------
 1117|  1.11k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1118|  2.63k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1118:28): [Folded, False: 2.63k]
  |  Branch (1118:40): [True: 0, False: 0]
  |  Branch (1118:52): [True: 0, False: 0]
  ------------------
 1119|      0|                    auto newn = pos.node()->inner()[0];
 1120|      0|                    return std::make_tuple(
 1121|      0|                        pos.shift() - B, newn->inc(), ts, tail);
 1122|  2.63k|                } else {
 1123|  2.63k|                    auto newn = node_t::copy_inner_r(pos.node(), idx);
 1124|  2.63k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1125|  2.63k|                }
 1126|  4.90k|            }
 1127|  4.90k|            IMMER_CATCH (...) {
 1128|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1128:17): [True: 0, False: 0]
  |  Branch (1128:17): [True: 0, False: 0]
  |  Branch (1128:17): [True: 0, False: 0]
  ------------------
 1129|      0|                if (next)
  ------------------
  |  Branch (1129:21): [True: 0, False: 0]
  ------------------
 1130|      0|                    dec_inner(next,
 1131|      0|                              pos.shift() - B,
 1132|      0|                              last + 1 - ts - pos.size_before(idx));
 1133|      0|                if (tail)
  ------------------
  |  Branch (1133:21): [True: 0, False: 0]
  ------------------
 1134|      0|                    dec_leaf(tail, ts);
 1135|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1136|      0|            }
 1137|  4.90k|        }
 1138|  4.90k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  2.55k|    {
 1143|  2.55k|        auto idx = pos.index(last);
 1144|  2.55k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 2.55k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  2.55k|        } else {
 1147|  2.55k|            using std::get;
 1148|  2.55k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.55k|            auto next = get<1>(subs);
 1150|  2.55k|            auto ts   = get<2>(subs);
 1151|  2.55k|            auto tail = get<3>(subs);
 1152|  2.55k|            IMMER_TRY {
  ------------------
  |  |   49|  2.55k|#define IMMER_TRY try
  ------------------
 1153|  2.55k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 1.36k, False: 1.18k]
  ------------------
 1154|  1.36k|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|  1.36k|                    newn->inner()[idx] = next;
 1156|  1.36k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  1.36k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 658, False: 530]
  ------------------
 1158|    658|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|    658|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 530]
  |  Branch (1159:40): [True: 0, False: 0]
  |  Branch (1159:52): [True: 0, False: 0]
  ------------------
 1160|      0|                    auto newn = pos.node()->inner()[0];
 1161|      0|                    return std::make_tuple(
 1162|      0|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|    530|                } else {
 1164|    530|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|    530|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|    530|                }
 1167|  2.55k|            }
 1168|  2.55k|            IMMER_CATCH (...) {
 1169|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  ------------------
 1170|      0|                assert(tail);
  ------------------
  |  Branch (1170:17): [True: 0, False: 0]
  ------------------
 1171|      0|                if (next)
  ------------------
  |  Branch (1171:21): [True: 0, False: 0]
  ------------------
 1172|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1173|      0|                dec_leaf(tail, ts);
 1174|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1175|      0|            }
 1176|  2.55k|        }
 1177|  2.55k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  3.87k|    {
 1182|  3.87k|        auto old_tail_size = pos.count();
 1183|  3.87k|        auto new_tail_size = pos.index(last) + 1;
 1184|  3.87k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.51k, False: 2.36k]
  ------------------
 1185|  3.87k|                                 ? pos.node()->inc()
 1186|  3.87k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  3.87k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  3.87k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  2.01k|    {
 1143|  2.01k|        auto idx = pos.index(last);
 1144|  2.01k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 2.01k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  2.01k|        } else {
 1147|  2.01k|            using std::get;
 1148|  2.01k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.01k|            auto next = get<1>(subs);
 1150|  2.01k|            auto ts   = get<2>(subs);
 1151|  2.01k|            auto tail = get<3>(subs);
 1152|  2.01k|            IMMER_TRY {
  ------------------
  |  |   49|  2.01k|#define IMMER_TRY try
  ------------------
 1153|  2.01k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 213, False: 1.80k]
  ------------------
 1154|    213|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    213|                    newn->inner()[idx] = next;
 1156|    213|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  1.80k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 429, False: 1.37k]
  ------------------
 1158|    429|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  1.37k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 1.37k]
  |  Branch (1159:40): [True: 0, False: 0]
  |  Branch (1159:52): [True: 0, False: 0]
  ------------------
 1160|      0|                    auto newn = pos.node()->inner()[0];
 1161|      0|                    return std::make_tuple(
 1162|      0|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|  1.37k|                } else {
 1164|  1.37k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  1.37k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  1.37k|                }
 1167|  2.01k|            }
 1168|  2.01k|            IMMER_CATCH (...) {
 1169|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  ------------------
 1170|      0|                assert(tail);
  ------------------
  |  Branch (1170:17): [True: 0, False: 0]
  ------------------
 1171|      0|                if (next)
  ------------------
  |  Branch (1171:21): [True: 0, False: 0]
  ------------------
 1172|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1173|      0|                dec_leaf(tail, ts);
 1174|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1175|      0|            }
 1176|  2.01k|        }
 1177|  2.01k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  2.80k|    {
 1182|  2.80k|        auto old_tail_size = pos.count();
 1183|  2.80k|        auto new_tail_size = pos.index(last) + 1;
 1184|  2.80k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.25k, False: 1.55k]
  ------------------
 1185|  2.80k|                                 ? pos.node()->inc()
 1186|  2.80k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  2.80k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  2.80k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  2.89k|    {
 1143|  2.89k|        auto idx = pos.index(last);
 1144|  2.89k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 2.89k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  2.89k|        } else {
 1147|  2.89k|            using std::get;
 1148|  2.89k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.89k|            auto next = get<1>(subs);
 1150|  2.89k|            auto ts   = get<2>(subs);
 1151|  2.89k|            auto tail = get<3>(subs);
 1152|  2.89k|            IMMER_TRY {
  ------------------
  |  |   49|  2.89k|#define IMMER_TRY try
  ------------------
 1153|  2.89k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 908, False: 1.98k]
  ------------------
 1154|    908|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    908|                    newn->inner()[idx] = next;
 1156|    908|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  1.98k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 1.01k, False: 976]
  ------------------
 1158|  1.01k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  1.01k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 976]
  |  Branch (1159:40): [True: 0, False: 0]
  |  Branch (1159:52): [True: 0, False: 0]
  ------------------
 1160|      0|                    auto newn = pos.node()->inner()[0];
 1161|      0|                    return std::make_tuple(
 1162|      0|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|    976|                } else {
 1164|    976|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|    976|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|    976|                }
 1167|  2.89k|            }
 1168|  2.89k|            IMMER_CATCH (...) {
 1169|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  ------------------
 1170|      0|                assert(tail);
  ------------------
  |  Branch (1170:17): [True: 0, False: 0]
  ------------------
 1171|      0|                if (next)
  ------------------
  |  Branch (1171:21): [True: 0, False: 0]
  ------------------
 1172|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1173|      0|                dec_leaf(tail, ts);
 1174|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1175|      0|            }
 1176|  2.89k|        }
 1177|  2.89k|    }
_ZN5immer6detail4rbts8dec_leafINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEvPT_j:
  556|  38.7k|{
  557|  38.7k|    make_leaf_sub_pos(node, n).visit(dec_visitor{});
  558|  38.7k|}
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  6.36k|    {
 1143|  6.36k|        auto idx = pos.index(last);
 1144|  6.36k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [True: 6.36k, Folded]
  |  Branch (1144:25): [True: 3.33k, False: 3.03k]
  ------------------
 1145|  3.33k|            return pos.towards_oh(this_t{}, last, idx);
 1146|  3.33k|        } else {
 1147|  3.03k|            using std::get;
 1148|  3.03k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  3.03k|            auto next = get<1>(subs);
 1150|  3.03k|            auto ts   = get<2>(subs);
 1151|  3.03k|            auto tail = get<3>(subs);
 1152|  3.03k|            IMMER_TRY {
  ------------------
  |  |   49|  3.03k|#define IMMER_TRY try
  ------------------
 1153|  3.03k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 676, False: 2.35k]
  ------------------
 1154|    676|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    676|                    newn->inner()[idx] = next;
 1156|    676|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  2.35k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 0, False: 2.35k]
  ------------------
 1158|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  2.35k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [True: 2.35k, Folded]
  |  Branch (1159:40): [True: 1.97k, False: 386]
  |  Branch (1159:52): [True: 848, False: 1.12k]
  ------------------
 1160|    848|                    auto newn = pos.node()->inner()[0];
 1161|    848|                    return std::make_tuple(
 1162|    848|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|  1.50k|                } else {
 1164|  1.50k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  1.50k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  1.50k|                }
 1167|  3.03k|            }
 1168|  3.03k|            IMMER_CATCH (...) {
 1169|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  ------------------
 1170|      0|                assert(tail);
  ------------------
  |  Branch (1170:17): [True: 0, False: 0]
  ------------------
 1171|      0|                if (next)
  ------------------
  |  Branch (1171:21): [True: 0, False: 0]
  ------------------
 1172|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1173|      0|                dec_leaf(tail, ts);
 1174|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1175|      0|            }
 1176|  3.03k|        }
 1177|  6.36k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  1.41k|    {
 1182|  1.41k|        auto old_tail_size = pos.count();
 1183|  1.41k|        auto new_tail_size = pos.index(last) + 1;
 1184|  1.41k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 614, False: 804]
  ------------------
 1185|  1.41k|                                 ? pos.node()->inc()
 1186|  1.41k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  1.41k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  1.41k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  2.01k|    {
 1143|  2.01k|        auto idx = pos.index(last);
 1144|  2.01k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [True: 2.01k, Folded]
  |  Branch (1144:25): [True: 925, False: 1.09k]
  ------------------
 1145|    925|            return pos.towards_oh(this_t{}, last, idx);
 1146|  1.09k|        } else {
 1147|  1.09k|            using std::get;
 1148|  1.09k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  1.09k|            auto next = get<1>(subs);
 1150|  1.09k|            auto ts   = get<2>(subs);
 1151|  1.09k|            auto tail = get<3>(subs);
 1152|  1.09k|            IMMER_TRY {
  ------------------
  |  |   49|  1.09k|#define IMMER_TRY try
  ------------------
 1153|  1.09k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 312, False: 781]
  ------------------
 1154|    312|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    312|                    newn->inner()[idx] = next;
 1156|    312|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|    781|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 0, False: 781]
  ------------------
 1158|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|    781|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [True: 781, Folded]
  |  Branch (1159:40): [True: 435, False: 346]
  |  Branch (1159:52): [True: 201, False: 234]
  ------------------
 1160|    201|                    auto newn = pos.node()->inner()[0];
 1161|    201|                    return std::make_tuple(
 1162|    201|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|    580|                } else {
 1164|    580|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|    580|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|    580|                }
 1167|  1.09k|            }
 1168|  1.09k|            IMMER_CATCH (...) {
 1169|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  |  Branch (1169:17): [True: 0, False: 0]
  ------------------
 1170|      0|                assert(tail);
  ------------------
  |  Branch (1170:17): [True: 0, False: 0]
  ------------------
 1171|      0|                if (next)
  ------------------
  |  Branch (1171:21): [True: 0, False: 0]
  ------------------
 1172|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1173|      0|                dec_leaf(tail, ts);
 1174|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1175|      0|            }
 1176|  1.09k|        }
 1177|  2.01k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|    824|    {
 1182|    824|        auto old_tail_size = pos.count();
 1183|    824|        auto new_tail_size = pos.index(last) + 1;
 1184|    824|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 407, False: 417]
  ------------------
 1185|    824|                                 ? pos.node()->inc()
 1186|    824|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|    824|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|    824|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  18.3k|    {
 1415|  18.3k|        auto idx                = pos.subindex(first);
 1416|  18.3k|        auto count              = pos.count();
 1417|  18.3k|        auto left_size          = pos.size_before(idx);
 1418|  18.3k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  18.3k|        auto dropped_size       = first;
 1420|  18.3k|        auto child_dropped_size = dropped_size - left_size;
 1421|  18.3k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 18.3k, Folded]
  |  Branch (1421:25): [True: 16.4k, False: 1.90k]
  |  Branch (1421:45): [True: 3.27k, False: 13.1k]
  ------------------
 1422|  3.27k|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  15.0k|        } else {
 1424|  15.0k|            using std::get;
 1425|  15.0k|            auto n    = pos.node();
 1426|  15.0k|            auto newc = count - idx;
 1427|  15.0k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  15.0k|            IMMER_TRY {
  ------------------
  |  |   49|  15.0k|#define IMMER_TRY try
  ------------------
 1429|  15.0k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  15.0k|                auto newr     = newn->relaxed();
 1431|  15.0k|                newr->d.count = count - idx;
 1432|  15.0k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  15.0k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 15.0k, False: 0]
  ------------------
 1434|  15.0k|                pos.copy_sizes(idx + 1,
 1435|  15.0k|                               newr->d.count - 1,
 1436|  15.0k|                               newr->d.sizes[0],
 1437|  15.0k|                               newr->d.sizes + 1);
 1438|  15.0k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 15.0k, False: 0]
  ------------------
 1439|  15.0k|                       pos.size() - dropped_size);
 1440|  15.0k|                newn->inner()[0] = get<1>(subs);
 1441|  15.0k|                std::copy(n->inner() + idx + 1,
 1442|  15.0k|                          n->inner() + count,
 1443|  15.0k|                          newn->inner() + 1);
 1444|  15.0k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  15.0k|                return std::make_tuple(pos.shift(), newn);
 1446|  15.0k|            }
 1447|  15.0k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  15.0k|        }
 1452|  18.3k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1456|  14.0k|    {
 1457|  14.0k|        auto n = node_t::copy_leaf(pos.node(), pos.index(first), pos.count());
 1458|  14.0k|        return std::make_tuple(0, n);
 1459|  14.0k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  68.9k|    {
 1415|  68.9k|        auto idx                = pos.subindex(first);
 1416|  68.9k|        auto count              = pos.count();
 1417|  68.9k|        auto left_size          = pos.size_before(idx);
 1418|  68.9k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  68.9k|        auto dropped_size       = first;
 1420|  68.9k|        auto child_dropped_size = dropped_size - left_size;
 1421|  68.9k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 68.9k]
  |  Branch (1421:25): [True: 0, False: 0]
  |  Branch (1421:45): [True: 0, False: 0]
  ------------------
 1422|      0|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  68.9k|        } else {
 1424|  68.9k|            using std::get;
 1425|  68.9k|            auto n    = pos.node();
 1426|  68.9k|            auto newc = count - idx;
 1427|  68.9k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  68.9k|            IMMER_TRY {
  ------------------
  |  |   49|  68.9k|#define IMMER_TRY try
  ------------------
 1429|  68.9k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  68.9k|                auto newr     = newn->relaxed();
 1431|  68.9k|                newr->d.count = count - idx;
 1432|  68.9k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  68.9k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 68.9k, False: 0]
  ------------------
 1434|  68.9k|                pos.copy_sizes(idx + 1,
 1435|  68.9k|                               newr->d.count - 1,
 1436|  68.9k|                               newr->d.sizes[0],
 1437|  68.9k|                               newr->d.sizes + 1);
 1438|  68.9k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 68.9k, False: 0]
  ------------------
 1439|  68.9k|                       pos.size() - dropped_size);
 1440|  68.9k|                newn->inner()[0] = get<1>(subs);
 1441|  68.9k|                std::copy(n->inner() + idx + 1,
 1442|  68.9k|                          n->inner() + count,
 1443|  68.9k|                          newn->inner() + 1);
 1444|  68.9k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  68.9k|                return std::make_tuple(pos.shift(), newn);
 1446|  68.9k|            }
 1447|  68.9k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  68.9k|        }
 1452|  68.9k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|    984|    {
 1415|    984|        auto idx                = pos.subindex(first);
 1416|    984|        auto count              = pos.count();
 1417|    984|        auto left_size          = pos.size_before(idx);
 1418|    984|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|    984|        auto dropped_size       = first;
 1420|    984|        auto child_dropped_size = dropped_size - left_size;
 1421|    984|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 984]
  |  Branch (1421:25): [True: 0, False: 0]
  |  Branch (1421:45): [True: 0, False: 0]
  ------------------
 1422|      0|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|    984|        } else {
 1424|    984|            using std::get;
 1425|    984|            auto n    = pos.node();
 1426|    984|            auto newc = count - idx;
 1427|    984|            auto newn = node_t::make_inner_r_n(newc);
 1428|    984|            IMMER_TRY {
  ------------------
  |  |   49|    984|#define IMMER_TRY try
  ------------------
 1429|    984|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|    984|                auto newr     = newn->relaxed();
 1431|    984|                newr->d.count = count - idx;
 1432|    984|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|    984|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 984, False: 0]
  ------------------
 1434|    984|                pos.copy_sizes(idx + 1,
 1435|    984|                               newr->d.count - 1,
 1436|    984|                               newr->d.sizes[0],
 1437|    984|                               newr->d.sizes + 1);
 1438|    984|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 984, False: 0]
  ------------------
 1439|    984|                       pos.size() - dropped_size);
 1440|    984|                newn->inner()[0] = get<1>(subs);
 1441|    984|                std::copy(n->inner() + idx + 1,
 1442|    984|                          n->inner() + count,
 1443|    984|                          newn->inner() + 1);
 1444|    984|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|    984|                return std::make_tuple(pos.shift(), newn);
 1446|    984|            }
 1447|    984|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|    984|        }
 1452|    984|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1456|  7.46k|    {
 1457|  7.46k|        auto n = node_t::copy_leaf(pos.node(), pos.index(first), pos.count());
 1458|  7.46k|        return std::make_tuple(0, n);
 1459|  7.46k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  4.07k|    {
 1415|  4.07k|        auto idx                = pos.subindex(first);
 1416|  4.07k|        auto count              = pos.count();
 1417|  4.07k|        auto left_size          = pos.size_before(idx);
 1418|  4.07k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  4.07k|        auto dropped_size       = first;
 1420|  4.07k|        auto child_dropped_size = dropped_size - left_size;
 1421|  4.07k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 4.07k]
  |  Branch (1421:25): [True: 0, False: 0]
  |  Branch (1421:45): [True: 0, False: 0]
  ------------------
 1422|      0|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  4.07k|        } else {
 1424|  4.07k|            using std::get;
 1425|  4.07k|            auto n    = pos.node();
 1426|  4.07k|            auto newc = count - idx;
 1427|  4.07k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  4.07k|            IMMER_TRY {
  ------------------
  |  |   49|  4.07k|#define IMMER_TRY try
  ------------------
 1429|  4.07k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  4.07k|                auto newr     = newn->relaxed();
 1431|  4.07k|                newr->d.count = count - idx;
 1432|  4.07k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  4.07k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 4.07k, False: 0]
  ------------------
 1434|  4.07k|                pos.copy_sizes(idx + 1,
 1435|  4.07k|                               newr->d.count - 1,
 1436|  4.07k|                               newr->d.sizes[0],
 1437|  4.07k|                               newr->d.sizes + 1);
 1438|  4.07k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 4.07k, False: 0]
  ------------------
 1439|  4.07k|                       pos.size() - dropped_size);
 1440|  4.07k|                newn->inner()[0] = get<1>(subs);
 1441|  4.07k|                std::copy(n->inner() + idx + 1,
 1442|  4.07k|                          n->inner() + count,
 1443|  4.07k|                          newn->inner() + 1);
 1444|  4.07k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  4.07k|                return std::make_tuple(pos.shift(), newn);
 1446|  4.07k|            }
 1447|  4.07k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  4.07k|        }
 1452|  4.07k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  8.18k|    {
 1415|  8.18k|        auto idx                = pos.subindex(first);
 1416|  8.18k|        auto count              = pos.count();
 1417|  8.18k|        auto left_size          = pos.size_before(idx);
 1418|  8.18k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  8.18k|        auto dropped_size       = first;
 1420|  8.18k|        auto child_dropped_size = dropped_size - left_size;
 1421|  8.18k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 8.18k, Folded]
  |  Branch (1421:25): [True: 5.10k, False: 3.08k]
  |  Branch (1421:45): [True: 2.48k, False: 2.61k]
  ------------------
 1422|  2.48k|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  5.70k|        } else {
 1424|  5.70k|            using std::get;
 1425|  5.70k|            auto n    = pos.node();
 1426|  5.70k|            auto newc = count - idx;
 1427|  5.70k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  5.70k|            IMMER_TRY {
  ------------------
  |  |   49|  5.70k|#define IMMER_TRY try
  ------------------
 1429|  5.70k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  5.70k|                auto newr     = newn->relaxed();
 1431|  5.70k|                newr->d.count = count - idx;
 1432|  5.70k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  5.70k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 5.70k, False: 0]
  ------------------
 1434|  5.70k|                pos.copy_sizes(idx + 1,
 1435|  5.70k|                               newr->d.count - 1,
 1436|  5.70k|                               newr->d.sizes[0],
 1437|  5.70k|                               newr->d.sizes + 1);
 1438|  5.70k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 5.70k, False: 0]
  ------------------
 1439|  5.70k|                       pos.size() - dropped_size);
 1440|  5.70k|                newn->inner()[0] = get<1>(subs);
 1441|  5.70k|                std::copy(n->inner() + idx + 1,
 1442|  5.70k|                          n->inner() + count,
 1443|  5.70k|                          newn->inner() + 1);
 1444|  5.70k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  5.70k|                return std::make_tuple(pos.shift(), newn);
 1446|  5.70k|            }
 1447|  5.70k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  5.70k|        }
 1452|  8.18k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|    778|    {
 1415|    778|        auto idx                = pos.subindex(first);
 1416|    778|        auto count              = pos.count();
 1417|    778|        auto left_size          = pos.size_before(idx);
 1418|    778|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|    778|        auto dropped_size       = first;
 1420|    778|        auto child_dropped_size = dropped_size - left_size;
 1421|    778|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 778, Folded]
  |  Branch (1421:25): [True: 323, False: 455]
  |  Branch (1421:45): [True: 0, False: 323]
  ------------------
 1422|      0|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|    778|        } else {
 1424|    778|            using std::get;
 1425|    778|            auto n    = pos.node();
 1426|    778|            auto newc = count - idx;
 1427|    778|            auto newn = node_t::make_inner_r_n(newc);
 1428|    778|            IMMER_TRY {
  ------------------
  |  |   49|    778|#define IMMER_TRY try
  ------------------
 1429|    778|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|    778|                auto newr     = newn->relaxed();
 1431|    778|                newr->d.count = count - idx;
 1432|    778|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|    778|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 778, False: 0]
  ------------------
 1434|    778|                pos.copy_sizes(idx + 1,
 1435|    778|                               newr->d.count - 1,
 1436|    778|                               newr->d.sizes[0],
 1437|    778|                               newr->d.sizes + 1);
 1438|    778|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 778, False: 0]
  ------------------
 1439|    778|                       pos.size() - dropped_size);
 1440|    778|                newn->inner()[0] = get<1>(subs);
 1441|    778|                std::copy(n->inner() + idx + 1,
 1442|    778|                          n->inner() + count,
 1443|    778|                          newn->inner() + 1);
 1444|    778|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|    778|                return std::make_tuple(pos.shift(), newn);
 1446|    778|            }
 1447|    778|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|    778|        }
 1452|    778|    }
_ZN5immer6detail4rbts12concat_treesINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jSG_jm:
 2001|  10.0k|{
 2002|  10.0k|    return make_singleton_regular_sub_pos(ltail, ltcount)
 2003|  10.0k|        .visit(concat_trees_left_visitor<Node>{},
 2004|  10.0k|               empty_leaf_pos<Node>{},
 2005|  10.0k|               rroot,
 2006|  10.0k|               rshift,
 2007|  10.0k|               rsize)
 2008|  10.0k|        .realize();
 2009|  10.0k|}
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_25singleton_regular_sub_posISC_EENS1_14empty_leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  10.0k|    {
 1972|  10.0k|        return visit_maybe_relaxed_sub(
 1973|  10.0k|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  10.0k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  7.28k|    {
 1959|  7.28k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  7.28k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  28.5k|{
 1873|  28.5k|    auto lshift = lpos.shift();
 1874|  28.5k|    auto rshift = rpos.shift();
 1875|  28.5k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 28.5k]
  ------------------
 1876|      0|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|      0|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  28.5k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 21.5k, False: 6.97k]
  ------------------
 1879|  21.5k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|  21.5k|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  21.5k|    } else {
 1882|  6.97k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 6.97k, False: 0]
  ------------------
 1883|  6.97k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 6.97k]
  |  Branch (1883:9): [True: 6.97k, False: 0]
  |  Branch (1883:9): [True: 6.97k, False: 0]
  ------------------
 1884|  6.97k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  6.97k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  6.97k|    }
 1887|  28.5k|}
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8each_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1512|  17.2M|    {
 1513|  17.2M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.38M, False: 15.8M]
  ------------------
 1514|  1.38M|            auto s = size_t{};
 1515|  5.53M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 4.15M, False: 1.38M]
  ------------------
 1516|  4.15M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  4.15M|                s = sizes_[i];
 1518|  4.15M|            }
 1519|  15.8M|        } else {
 1520|  43.6M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 27.8M, False: 15.8M]
  ------------------
 1521|  27.8M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  27.8M|                    .visit(v, args...);
 1523|  15.8M|        }
 1524|  17.2M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  13.3M|    {
 1734|  13.3M|        auto count = p.count();
 1735|  13.3M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 13.3M, False: 0]
  ------------------
 1736|  13.3M|        plan.counts[plan.n++] = count;
 1737|  13.3M|        plan.total += count;
 1738|  13.3M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|   155M|    {
 1734|   155M|        auto count = p.count();
 1735|   155M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 155M, False: 0]
  ------------------
 1736|   155M|        plan.counts[plan.n++] = count;
 1737|   155M|        plan.total += count;
 1738|   155M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE7shuffleEj:
 1762|  17.2M|    {
 1763|       |        // gcc seems to not really understand this code... :(
 1764|  17.2M|#if !defined(_MSC_VER)
 1765|  17.2M|#pragma GCC diagnostic push
 1766|  17.2M|#pragma GCC diagnostic ignored "-Warray-bounds"
 1767|  17.2M|#endif
 1768|  17.2M|        constexpr count_t rrb_extras    = 2;
 1769|  17.2M|        constexpr count_t rrb_invariant = 1;
 1770|  17.2M|        const auto bits                 = shift == BL ? BL : B;
  ------------------
  |  Branch (1770:43): [True: 1.38M, False: 15.8M]
  ------------------
 1771|  17.2M|        const auto branches             = count_t{1} << bits;
 1772|  17.2M|        const auto optimal              = ((total - 1) >> bits) + 1;
 1773|  17.2M|        count_t i                       = 0;
 1774|  21.8M|        while (n >= optimal + rrb_extras) {
  ------------------
  |  Branch (1774:16): [True: 4.59M, False: 17.2M]
  ------------------
 1775|       |            // skip ok nodes
 1776|  10.4M|            while (counts[i] > branches - rrb_invariant)
  ------------------
  |  Branch (1776:20): [True: 5.83M, False: 4.59M]
  ------------------
 1777|  5.83M|                i++;
 1778|  4.59M|            assert(i < n);
  ------------------
  |  Branch (1778:13): [True: 4.59M, False: 0]
  ------------------
 1779|       |            // short node, redistribute
 1780|  4.59M|            auto remaining = counts[i];
 1781|  17.2M|            do {
 1782|  17.2M|                auto next  = counts[i + 1];
 1783|  17.2M|                auto count = std::min(remaining + next, branches);
 1784|  17.2M|                counts[i]  = count;
 1785|  17.2M|                assert(counts[i]);
  ------------------
  |  Branch (1785:17): [True: 17.2M, False: 0]
  ------------------
 1786|  17.2M|                remaining += next - count;
 1787|  17.2M|                ++i;
 1788|  17.2M|            } while (remaining > 0);
  ------------------
  |  Branch (1788:22): [True: 12.6M, False: 4.59M]
  ------------------
 1789|       |            // remove node
 1790|  4.59M|            std::move(counts + i + 1, counts + n, counts + i);
 1791|  4.59M|            --n;
 1792|  4.59M|            --i;
 1793|  4.59M|        }
 1794|  17.2M|#if !defined(_MSC_VER)
 1795|  17.2M|#pragma GCC diagnostic pop
 1796|  17.2M|#endif
 1797|  17.2M|    }
_ZNK5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
 1478|  34.5M|    auto shift() const { return shift_; }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEC2EjPjj:
 1577|  17.2M|        : curr_{counts}
 1578|  17.2M|        , n_{n}
 1579|  17.2M|        , result_{
 1580|  17.2M|              shift + B, node_t::make_inner_r_n(std::min(n_, branches<B>)), 0}
 1581|  17.2M|    {
 1582|  17.2M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEC2EjPSC_m:
 1481|  17.2M|        : shift_{s}
 1482|  17.2M|        , count_{1}
 1483|  17.2M|        , nodes_{n0}
 1484|  17.2M|        , sizes_{s0}
 1485|  17.2M|    {
 1486|  17.2M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8each_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1512|  17.2M|    {
 1513|  17.2M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.38M, False: 15.8M]
  ------------------
 1514|  1.38M|            auto s = size_t{};
 1515|  5.53M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 4.15M, False: 1.38M]
  ------------------
 1516|  4.15M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  4.15M|                s = sizes_[i];
 1518|  4.15M|            }
 1519|  15.8M|        } else {
 1520|  43.6M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 27.8M, False: 15.8M]
  ------------------
 1521|  27.8M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  27.8M|                    .visit(v, args...);
 1523|  15.8M|        }
 1524|  17.2M|    }
_ZN5immer6detail4rbts21concat_merger_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1721|  13.3M|    {
 1722|  13.3M|        merger.merge_leaf(p);
 1723|  13.3M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10merge_leafIRNS1_12leaf_sub_posISC_EEEEvOT_:
 1614|  13.3M|    {
 1615|  13.3M|        auto from       = p.node();
 1616|  13.3M|        auto from_size  = p.size();
 1617|  13.3M|        auto from_count = p.count();
 1618|  13.3M|        assert(from_size);
  ------------------
  |  Branch (1618:9): [True: 13.3M, False: 0]
  ------------------
 1619|  13.3M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1619:13): [True: 13.0M, False: 204k]
  |  Branch (1619:21): [True: 12.9M, False: 98.1k]
  ------------------
 1620|  12.9M|            add_child(from, from_size);
 1621|  12.9M|            from->inc();
 1622|  12.9M|        } else {
 1623|   302k|            auto from_offset = count_t{};
 1624|   302k|            auto from_data   = from->leaf();
 1625|   405k|            do {
 1626|   405k|                if (!to_) {
  ------------------
  |  Branch (1626:21): [True: 200k, False: 204k]
  ------------------
 1627|   200k|                    to_        = node_t::make_leaf_n(*curr_);
 1628|   200k|                    to_offset_ = 0;
 1629|   200k|                }
 1630|   405k|                auto data = to_->leaf();
 1631|   405k|                auto to_copy =
 1632|   405k|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1633|   405k|                detail::uninitialized_copy(from_data + from_offset,
 1634|   405k|                                           from_data + from_offset + to_copy,
 1635|   405k|                                           data + to_offset_);
 1636|   405k|                to_offset_ += to_copy;
 1637|   405k|                from_offset += to_copy;
 1638|   405k|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1638:21): [True: 200k, False: 204k]
  ------------------
 1639|   200k|                    add_child(to_, to_offset_);
 1640|   200k|                    to_ = nullptr;
 1641|   200k|                }
 1642|   405k|            } while (from_offset != from_count);
  ------------------
  |  Branch (1642:22): [True: 102k, False: 302k]
  ------------------
 1643|   302k|        }
 1644|  13.3M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9add_childEPSC_m:
 1589|   173M|    {
 1590|   173M|        assert(size);
  ------------------
  |  Branch (1590:9): [True: 173M, False: 0]
  ------------------
 1591|   173M|        ++curr_;
 1592|   173M|        auto parent  = result_.nodes_[result_.count_ - 1];
 1593|   173M|        auto relaxed = parent->relaxed();
 1594|   173M|        if (relaxed->d.count == branches<B>) {
  ------------------
  |  Branch (1594:13): [True: 12.0M, False: 161M]
  ------------------
 1595|  12.0M|            assert(result_.count_ < result_t::max_children);
  ------------------
  |  Branch (1595:13): [True: 12.0M, False: 0]
  ------------------
 1596|  12.0M|            n_ -= branches<B>;
 1597|  12.0M|            parent  = node_t::make_inner_r_n(std::min(n_, branches<B>));
 1598|  12.0M|            relaxed = parent->relaxed();
 1599|  12.0M|            result_.nodes_[result_.count_] = parent;
 1600|  12.0M|            result_.sizes_[result_.count_] = result_.sizes_[result_.count_ - 1];
 1601|  12.0M|            assert(result_.sizes_[result_.count_]);
  ------------------
  |  Branch (1601:13): [True: 12.0M, False: 0]
  ------------------
 1602|  12.0M|            ++result_.count_;
 1603|  12.0M|        }
 1604|   173M|        auto idx = relaxed->d.count++;
 1605|   173M|        result_.sizes_[result_.count_ - 1] += size;
 1606|   173M|        assert(result_.sizes_[result_.count_ - 1]);
  ------------------
  |  Branch (1606:9): [True: 173M, False: 0]
  ------------------
 1607|   173M|        relaxed->d.sizes[idx] = size + (idx ? relaxed->d.sizes[idx - 1] : 0);
  ------------------
  |  Branch (1607:41): [True: 143M, False: 29.2M]
  ------------------
 1608|   173M|        assert(relaxed->d.sizes[idx]);
  ------------------
  |  Branch (1608:9): [True: 173M, False: 0]
  ------------------
 1609|   173M|        parent->inner()[idx] = p;
 1610|   173M|    };
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|   155M|    {
 1716|   155M|        merger.merge_inner(p);
 1717|   155M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11merge_innerIRNS1_11relaxed_posISC_EEEEvOT_:
 1648|   155M|    {
 1649|   155M|        auto from       = p.node();
 1650|   155M|        auto from_size  = p.size();
 1651|   155M|        auto from_count = p.count();
 1652|   155M|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 155M, False: 0]
  ------------------
 1653|   155M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 140M, False: 15.5M]
  |  Branch (1653:21): [True: 136M, False: 3.56M]
  ------------------
 1654|   136M|            add_child(from, from_size);
 1655|   136M|            from->inc();
 1656|   136M|        } else {
 1657|  19.0M|            auto from_offset = count_t{};
 1658|  19.0M|            auto from_data   = from->inner();
 1659|  30.1M|            do {
 1660|  30.1M|                if (!to_) {
  ------------------
  |  Branch (1660:21): [True: 14.5M, False: 15.5M]
  ------------------
 1661|  14.5M|                    to_        = node_t::make_inner_r_n(*curr_);
 1662|  14.5M|                    to_offset_ = 0;
 1663|  14.5M|                    to_size_   = 0;
 1664|  14.5M|                }
 1665|  30.1M|                auto data = to_->inner();
 1666|  30.1M|                auto to_copy =
 1667|  30.1M|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1668|  30.1M|                std::copy(from_data + from_offset,
 1669|  30.1M|                          from_data + from_offset + to_copy,
 1670|  30.1M|                          data + to_offset_);
 1671|  30.1M|                node_t::inc_nodes(from_data + from_offset, to_copy);
 1672|  30.1M|                auto sizes = to_->relaxed()->d.sizes;
 1673|  30.1M|                p.copy_sizes(
 1674|  30.1M|                    from_offset, to_copy, to_size_, sizes + to_offset_);
 1675|  30.1M|                to_offset_ += to_copy;
 1676|  30.1M|                from_offset += to_copy;
 1677|  30.1M|                to_size_ = sizes[to_offset_ - 1];
 1678|  30.1M|                assert(to_size_);
  ------------------
  |  Branch (1678:17): [True: 30.1M, False: 0]
  ------------------
 1679|  30.1M|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1679:21): [True: 14.5M, False: 15.5M]
  ------------------
 1680|  14.5M|                    to_->relaxed()->d.count = to_offset_;
 1681|  14.5M|                    add_child(to_, to_size_);
 1682|  14.5M|                    to_ = nullptr;
 1683|  14.5M|                }
 1684|  30.1M|            } while (from_offset != from_count);
  ------------------
  |  Branch (1684:22): [True: 11.0M, False: 19.0M]
  ------------------
 1685|  19.0M|        }
 1686|   155M|    }
_ZNK5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE6finishEv:
 1689|  17.2M|    {
 1690|  17.2M|        assert(!to_);
  ------------------
  |  Branch (1690:9): [True: 17.2M, False: 0]
  ------------------
 1691|  17.2M|        return result_;
 1692|  17.2M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8each_subINS1_11dec_visitorEJEEEvT_DpOT0_:
 1512|  17.2M|    {
 1513|  17.2M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.38M, False: 15.8M]
  ------------------
 1514|  1.38M|            auto s = size_t{};
 1515|  5.53M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 4.15M, False: 1.38M]
  ------------------
 1516|  4.15M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  4.15M|                s = sizes_[i];
 1518|  4.15M|            }
 1519|  15.8M|        } else {
 1520|  43.6M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 27.8M, False: 15.8M]
  ------------------
 1521|  27.8M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  27.8M|                    .visit(v, args...);
 1523|  15.8M|        }
 1524|  17.2M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEC2EjPSC_mSE_mSE_m:
 1503|  1.37M|        : shift_{s}
 1504|  1.37M|        , count_{3}
 1505|  1.37M|        , nodes_{n0, n1, n2}
 1506|  1.37M|        , sizes_{s0, s0 + s1, s0 + s1 + s2}
 1507|  1.37M|    {
 1508|  1.37M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEC2EjPSC_mSE_m:
 1489|  10.0k|        : shift_{s}
 1490|  10.0k|        , count_{2}
 1491|  10.0k|        , nodes_{n0, n1}
 1492|  10.0k|        , sizes_{s0, s0 + s1}
 1493|  10.0k|    {
 1494|  10.0k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  21.2k|    {
 1918|  21.2k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  21.2k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|    310|    {
 1918|    310|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|    310|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  3.06k|{
 1873|  3.06k|    auto lshift = lpos.shift();
 1874|  3.06k|    auto rshift = rpos.shift();
 1875|  3.06k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 3.06k]
  ------------------
 1876|      0|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|      0|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  3.06k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 619, False: 2.44k]
  ------------------
 1879|    619|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    619|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  2.44k|    } else {
 1882|  2.44k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 2.44k, False: 0]
  ------------------
 1883|  2.44k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 2.44k]
  |  Branch (1883:9): [True: 2.44k, False: 0]
  |  Branch (1883:9): [True: 2.44k, False: 0]
  ------------------
 1884|  2.44k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  2.44k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  2.44k|    }
 1887|  3.06k|}
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|    945|    {
 1918|    945|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|    945|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|    945|{
 1873|    945|    auto lshift = lpos.shift();
 1874|    945|    auto rshift = rpos.shift();
 1875|    945|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 945]
  ------------------
 1876|      0|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|      0|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|    945|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 326, False: 619]
  ------------------
 1879|    326|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    326|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|    619|    } else {
 1882|    619|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 619, False: 0]
  ------------------
 1883|    619|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 619]
  |  Branch (1883:9): [True: 619, False: 0]
  |  Branch (1883:9): [True: 619, False: 0]
  ------------------
 1884|    619|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|    619|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|    619|    }
 1887|    945|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|    770|{
 1824|    770|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|    770|    plan.fill(lpos, cpos, rpos);
 1826|    770|    plan.shuffle(cpos.shift());
 1827|    770|    IMMER_TRY {
  ------------------
  |  |   49|    770|#define IMMER_TRY try
  ------------------
 1828|    770|        return plan.merge(lpos, cpos, rpos);
 1829|    770|    }
 1830|    770|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|    770|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISH_EEEEvOT_OT0_OT1_:
 1752|    770|    {
 1753|    770|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 770, False: 0]
  ------------------
 1754|    770|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 770, False: 0]
  ------------------
 1755|    770|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|    770|        lpos.each_left_sub(visitor_t{}, *this);
 1757|    770|        cpos.each_sub(visitor_t{}, *this);
 1758|    770|        rpos.each_right_sub(visitor_t{}, *this);
 1759|    770|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  4.77M|    {
 1734|  4.77M|        auto count = p.count();
 1735|  4.77M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 4.77M, False: 0]
  ------------------
 1736|  4.77M|        plan.counts[plan.n++] = count;
 1737|  4.77M|        plan.total += count;
 1738|  4.77M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|   574k|    {
 1734|   574k|        auto count = p.count();
 1735|   574k|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 574k, False: 0]
  ------------------
 1736|   574k|        plan.counts[plan.n++] = count;
 1737|   574k|        plan.total += count;
 1738|   574k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|    770|    {
 1803|    770|        using node_t    = node_type<CPos>;
 1804|    770|        using merger_t  = concat_merger<node_t>;
 1805|    770|        using visitor_t = concat_merger_visitor;
 1806|    770|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|    770|        IMMER_TRY {
  ------------------
  |  |   49|    770|#define IMMER_TRY try
  ------------------
 1808|    770|            lpos.each_left_sub(visitor_t{}, merger);
 1809|    770|            cpos.each_sub(visitor_t{}, merger);
 1810|    770|            rpos.each_right_sub(visitor_t{}, merger);
 1811|    770|            cpos.each_sub(dec_visitor{});
 1812|    770|            return merger.finish();
 1813|    770|        }
 1814|    770|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|    770|    }
_ZN5immer6detail4rbts21concat_merger_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1721|  4.77M|    {
 1722|  4.77M|        merger.merge_leaf(p);
 1723|  4.77M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10merge_leafIRNS1_13full_leaf_posISC_EEEEvOT_:
 1614|  4.77M|    {
 1615|  4.77M|        auto from       = p.node();
 1616|  4.77M|        auto from_size  = p.size();
 1617|  4.77M|        auto from_count = p.count();
 1618|  4.77M|        assert(from_size);
  ------------------
  |  Branch (1618:9): [True: 4.77M, False: 0]
  ------------------
 1619|  4.77M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1619:13): [True: 4.77M, False: 0]
  |  Branch (1619:21): [True: 4.77M, False: 0]
  ------------------
 1620|  4.77M|            add_child(from, from_size);
 1621|  4.77M|            from->inc();
 1622|  4.77M|        } else {
 1623|      0|            auto from_offset = count_t{};
 1624|      0|            auto from_data   = from->leaf();
 1625|      0|            do {
 1626|      0|                if (!to_) {
  ------------------
  |  Branch (1626:21): [True: 0, False: 0]
  ------------------
 1627|      0|                    to_        = node_t::make_leaf_n(*curr_);
 1628|      0|                    to_offset_ = 0;
 1629|      0|                }
 1630|      0|                auto data = to_->leaf();
 1631|      0|                auto to_copy =
 1632|      0|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1633|      0|                detail::uninitialized_copy(from_data + from_offset,
 1634|      0|                                           from_data + from_offset + to_copy,
 1635|      0|                                           data + to_offset_);
 1636|      0|                to_offset_ += to_copy;
 1637|      0|                from_offset += to_copy;
 1638|      0|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1638:21): [True: 0, False: 0]
  ------------------
 1639|      0|                    add_child(to_, to_offset_);
 1640|      0|                    to_ = nullptr;
 1641|      0|                }
 1642|      0|            } while (from_offset != from_count);
  ------------------
  |  Branch (1642:22): [True: 0, False: 0]
  ------------------
 1643|      0|        }
 1644|  4.77M|    }
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|   574k|    {
 1716|   574k|        merger.merge_inner(p);
 1717|   574k|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11merge_innerIRNS1_8full_posISC_EEEEvOT_:
 1648|   574k|    {
 1649|   574k|        auto from       = p.node();
 1650|   574k|        auto from_size  = p.size();
 1651|   574k|        auto from_count = p.count();
 1652|   574k|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 574k, False: 0]
  ------------------
 1653|   574k|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 574k, False: 0]
  |  Branch (1653:21): [True: 574k, False: 0]
  ------------------
 1654|   574k|            add_child(from, from_size);
 1655|   574k|            from->inc();
 1656|   574k|        } else {
 1657|      0|            auto from_offset = count_t{};
 1658|      0|            auto from_data   = from->inner();
 1659|      0|            do {
 1660|      0|                if (!to_) {
  ------------------
  |  Branch (1660:21): [True: 0, False: 0]
  ------------------
 1661|      0|                    to_        = node_t::make_inner_r_n(*curr_);
 1662|      0|                    to_offset_ = 0;
 1663|      0|                    to_size_   = 0;
 1664|      0|                }
 1665|      0|                auto data = to_->inner();
 1666|      0|                auto to_copy =
 1667|      0|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1668|      0|                std::copy(from_data + from_offset,
 1669|      0|                          from_data + from_offset + to_copy,
 1670|      0|                          data + to_offset_);
 1671|      0|                node_t::inc_nodes(from_data + from_offset, to_copy);
 1672|      0|                auto sizes = to_->relaxed()->d.sizes;
 1673|      0|                p.copy_sizes(
 1674|      0|                    from_offset, to_copy, to_size_, sizes + to_offset_);
 1675|      0|                to_offset_ += to_copy;
 1676|      0|                from_offset += to_copy;
 1677|      0|                to_size_ = sizes[to_offset_ - 1];
 1678|      0|                assert(to_size_);
  ------------------
  |  Branch (1678:17): [True: 0, False: 0]
  ------------------
 1679|      0|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1679:21): [True: 0, False: 0]
  ------------------
 1680|      0|                    to_->relaxed()->d.count = to_offset_;
 1681|      0|                    add_child(to_, to_size_);
 1682|      0|                    to_ = nullptr;
 1683|      0|                }
 1684|      0|            } while (from_offset != from_count);
  ------------------
  |  Branch (1684:22): [True: 0, False: 0]
  ------------------
 1685|      0|        }
 1686|   574k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|    619|    {
 1945|    619|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|    619|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|  3.06k|    {
 1925|  3.06k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|  3.06k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_13full_leaf_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|  3.06k|{
 1839|  3.06k|    static_assert(Node::bits >= 2, "");
 1840|  3.06k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 3.06k, False: 0]
  ------------------
 1841|  3.06k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 3.06k, False: 0]
  ------------------
 1842|  3.06k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 3.06k, False: 0]
  ------------------
 1843|  3.06k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 0, False: 3.06k]
  ------------------
 1844|      0|        return {
 1845|      0|            Node::bits_leaf,
 1846|      0|            lpos.node()->inc(),
 1847|      0|            lpos.count(),
 1848|      0|            tpos.node()->inc(),
 1849|      0|            tpos.count(),
 1850|      0|            rpos.node()->inc(),
 1851|      0|            rpos.count(),
 1852|      0|        };
 1853|  3.06k|    else
 1854|  3.06k|        return {
 1855|  3.06k|            Node::bits_leaf,
 1856|  3.06k|            lpos.node()->inc(),
 1857|  3.06k|            lpos.count(),
 1858|  3.06k|            rpos.node()->inc(),
 1859|  3.06k|            rpos.count(),
 1860|  3.06k|        };
 1861|  3.06k|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|    619|{
 1824|    619|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|    619|    plan.fill(lpos, cpos, rpos);
 1826|    619|    plan.shuffle(cpos.shift());
 1827|    619|    IMMER_TRY {
  ------------------
  |  |   49|    619|#define IMMER_TRY try
  ------------------
 1828|    619|        return plan.merge(lpos, cpos, rpos);
 1829|    619|    }
 1830|    619|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|    619|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|    619|    {
 1753|    619|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 619, False: 0]
  ------------------
 1754|    619|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 619, False: 0]
  ------------------
 1755|    619|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|    619|        lpos.each_left_sub(visitor_t{}, *this);
 1757|    619|        cpos.each_sub(visitor_t{}, *this);
 1758|    619|        rpos.each_right_sub(visitor_t{}, *this);
 1759|    619|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|    619|    {
 1803|    619|        using node_t    = node_type<CPos>;
 1804|    619|        using merger_t  = concat_merger<node_t>;
 1805|    619|        using visitor_t = concat_merger_visitor;
 1806|    619|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|    619|        IMMER_TRY {
  ------------------
  |  |   49|    619|#define IMMER_TRY try
  ------------------
 1808|    619|            lpos.each_left_sub(visitor_t{}, merger);
 1809|    619|            cpos.each_sub(visitor_t{}, merger);
 1810|    619|            rpos.each_right_sub(visitor_t{}, merger);
 1811|    619|            cpos.each_sub(dec_visitor{});
 1812|    619|            return merger.finish();
 1813|    619|        }
 1814|    619|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|    619|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|  1.81k|{
 1824|  1.81k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  1.81k|    plan.fill(lpos, cpos, rpos);
 1826|  1.81k|    plan.shuffle(cpos.shift());
 1827|  1.81k|    IMMER_TRY {
  ------------------
  |  |   49|  1.81k|#define IMMER_TRY try
  ------------------
 1828|  1.81k|        return plan.merge(lpos, cpos, rpos);
 1829|  1.81k|    }
 1830|  1.81k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  1.81k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISH_EEEEvOT_OT0_OT1_:
 1752|  1.81k|    {
 1753|  1.81k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 1.81k, False: 0]
  ------------------
 1754|  1.81k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 1.81k, False: 0]
  ------------------
 1755|  1.81k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  1.81k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  1.81k|        cpos.each_sub(visitor_t{}, *this);
 1758|  1.81k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  1.81k|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  3.48M|    {
 1734|  3.48M|        auto count = p.count();
 1735|  3.48M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 3.48M, False: 0]
  ------------------
 1736|  3.48M|        plan.counts[plan.n++] = count;
 1737|  3.48M|        plan.total += count;
 1738|  3.48M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  1.81k|    {
 1803|  1.81k|        using node_t    = node_type<CPos>;
 1804|  1.81k|        using merger_t  = concat_merger<node_t>;
 1805|  1.81k|        using visitor_t = concat_merger_visitor;
 1806|  1.81k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  1.81k|        IMMER_TRY {
  ------------------
  |  |   49|  1.81k|#define IMMER_TRY try
  ------------------
 1808|  1.81k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  1.81k|            cpos.each_sub(visitor_t{}, merger);
 1810|  1.81k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  1.81k|            cpos.each_sub(dec_visitor{});
 1812|  1.81k|            return merger.finish();
 1813|  1.81k|        }
 1814|  1.81k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  1.81k|    }
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|  3.48M|    {
 1716|  3.48M|        merger.merge_inner(p);
 1717|  3.48M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11merge_innerIRNS1_15regular_sub_posISC_EEEEvOT_:
 1648|  3.48M|    {
 1649|  3.48M|        auto from       = p.node();
 1650|  3.48M|        auto from_size  = p.size();
 1651|  3.48M|        auto from_count = p.count();
 1652|  3.48M|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 3.48M, False: 0]
  ------------------
 1653|  3.48M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 1.94M, False: 1.53M]
  |  Branch (1653:21): [True: 1.94M, False: 0]
  ------------------
 1654|  1.94M|            add_child(from, from_size);
 1655|  1.94M|            from->inc();
 1656|  1.94M|        } else {
 1657|  1.53M|            auto from_offset = count_t{};
 1658|  1.53M|            auto from_data   = from->inner();
 1659|  3.06M|            do {
 1660|  3.06M|                if (!to_) {
  ------------------
  |  Branch (1660:21): [True: 1.53M, False: 1.53M]
  ------------------
 1661|  1.53M|                    to_        = node_t::make_inner_r_n(*curr_);
 1662|  1.53M|                    to_offset_ = 0;
 1663|  1.53M|                    to_size_   = 0;
 1664|  1.53M|                }
 1665|  3.06M|                auto data = to_->inner();
 1666|  3.06M|                auto to_copy =
 1667|  3.06M|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1668|  3.06M|                std::copy(from_data + from_offset,
 1669|  3.06M|                          from_data + from_offset + to_copy,
 1670|  3.06M|                          data + to_offset_);
 1671|  3.06M|                node_t::inc_nodes(from_data + from_offset, to_copy);
 1672|  3.06M|                auto sizes = to_->relaxed()->d.sizes;
 1673|  3.06M|                p.copy_sizes(
 1674|  3.06M|                    from_offset, to_copy, to_size_, sizes + to_offset_);
 1675|  3.06M|                to_offset_ += to_copy;
 1676|  3.06M|                from_offset += to_copy;
 1677|  3.06M|                to_size_ = sizes[to_offset_ - 1];
 1678|  3.06M|                assert(to_size_);
  ------------------
  |  Branch (1678:17): [True: 3.06M, False: 0]
  ------------------
 1679|  3.06M|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1679:21): [True: 1.53M, False: 1.53M]
  ------------------
 1680|  1.53M|                    to_->relaxed()->d.count = to_offset_;
 1681|  1.53M|                    add_child(to_, to_size_);
 1682|  1.53M|                    to_ = nullptr;
 1683|  1.53M|                }
 1684|  3.06M|            } while (from_offset != from_count);
  ------------------
  |  Branch (1684:22): [True: 1.53M, False: 1.53M]
  ------------------
 1685|  1.53M|        }
 1686|  3.48M|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  2.44k|    {
 1945|  2.44k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  2.44k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EESH_RNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|  6.97k|    {
 1925|  6.97k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|  6.97k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|  6.97k|{
 1839|  6.97k|    static_assert(Node::bits >= 2, "");
 1840|  6.97k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 6.97k, False: 0]
  ------------------
 1841|  6.97k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 6.97k, False: 0]
  ------------------
 1842|  6.97k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 6.97k, False: 0]
  ------------------
 1843|  6.97k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 0, False: 6.97k]
  ------------------
 1844|      0|        return {
 1845|      0|            Node::bits_leaf,
 1846|      0|            lpos.node()->inc(),
 1847|      0|            lpos.count(),
 1848|      0|            tpos.node()->inc(),
 1849|      0|            tpos.count(),
 1850|      0|            rpos.node()->inc(),
 1851|      0|            rpos.count(),
 1852|      0|        };
 1853|  6.97k|    else
 1854|  6.97k|        return {
 1855|  6.97k|            Node::bits_leaf,
 1856|  6.97k|            lpos.node()->inc(),
 1857|  6.97k|            lpos.count(),
 1858|  6.97k|            rpos.node()->inc(),
 1859|  6.97k|            rpos.count(),
 1860|  6.97k|        };
 1861|  6.97k|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  2.44k|{
 1824|  2.44k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  2.44k|    plan.fill(lpos, cpos, rpos);
 1826|  2.44k|    plan.shuffle(cpos.shift());
 1827|  2.44k|    IMMER_TRY {
  ------------------
  |  |   49|  2.44k|#define IMMER_TRY try
  ------------------
 1828|  2.44k|        return plan.merge(lpos, cpos, rpos);
 1829|  2.44k|    }
 1830|  2.44k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  2.44k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEEvOT_OT0_OT1_:
 1752|  2.44k|    {
 1753|  2.44k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 2.44k, False: 0]
  ------------------
 1754|  2.44k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 2.44k, False: 0]
  ------------------
 1755|  2.44k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  2.44k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  2.44k|        cpos.each_sub(visitor_t{}, *this);
 1758|  2.44k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  2.44k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  2.44k|    {
 1803|  2.44k|        using node_t    = node_type<CPos>;
 1804|  2.44k|        using merger_t  = concat_merger<node_t>;
 1805|  2.44k|        using visitor_t = concat_merger_visitor;
 1806|  2.44k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  2.44k|        IMMER_TRY {
  ------------------
  |  |   49|  2.44k|#define IMMER_TRY try
  ------------------
 1808|  2.44k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  2.44k|            cpos.each_sub(visitor_t{}, merger);
 1810|  2.44k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  2.44k|            cpos.each_sub(dec_visitor{});
 1812|  2.44k|            return merger.finish();
 1813|  2.44k|        }
 1814|  2.44k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  2.44k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_11relaxed_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|   202k|{
 1824|   202k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|   202k|    plan.fill(lpos, cpos, rpos);
 1826|   202k|    plan.shuffle(cpos.shift());
 1827|   202k|    IMMER_TRY {
  ------------------
  |  |   49|   202k|#define IMMER_TRY try
  ------------------
 1828|   202k|        return plan.merge(lpos, cpos, rpos);
 1829|   202k|    }
 1830|   202k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|   202k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISH_EEEEvOT_OT0_OT1_:
 1752|   202k|    {
 1753|   202k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 202k, False: 0]
  ------------------
 1754|   202k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 202k, False: 0]
  ------------------
 1755|   202k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|   202k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|   202k|        cpos.each_sub(visitor_t{}, *this);
 1758|   202k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|   202k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|   202k|    {
 1803|   202k|        using node_t    = node_type<CPos>;
 1804|   202k|        using merger_t  = concat_merger<node_t>;
 1805|   202k|        using visitor_t = concat_merger_visitor;
 1806|   202k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|   202k|        IMMER_TRY {
  ------------------
  |  |   49|   202k|#define IMMER_TRY try
  ------------------
 1808|   202k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|   202k|            cpos.each_sub(visitor_t{}, merger);
 1810|   202k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|   202k|            cpos.each_sub(dec_visitor{});
 1812|   202k|            return merger.finish();
 1813|   202k|        }
 1814|   202k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|   202k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  6.97k|    {
 1945|  6.97k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  6.97k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_11relaxed_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  6.97k|{
 1824|  6.97k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  6.97k|    plan.fill(lpos, cpos, rpos);
 1826|  6.97k|    plan.shuffle(cpos.shift());
 1827|  6.97k|    IMMER_TRY {
  ------------------
  |  |   49|  6.97k|#define IMMER_TRY try
  ------------------
 1828|  6.97k|        return plan.merge(lpos, cpos, rpos);
 1829|  6.97k|    }
 1830|  6.97k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  6.97k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEEvOT_OT0_OT1_:
 1752|  6.97k|    {
 1753|  6.97k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 6.97k, False: 0]
  ------------------
 1754|  6.97k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 6.97k, False: 0]
  ------------------
 1755|  6.97k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  6.97k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  6.97k|        cpos.each_sub(visitor_t{}, *this);
 1758|  6.97k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  6.97k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  6.97k|    {
 1803|  6.97k|        using node_t    = node_type<CPos>;
 1804|  6.97k|        using merger_t  = concat_merger<node_t>;
 1805|  6.97k|        using visitor_t = concat_merger_visitor;
 1806|  6.97k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  6.97k|        IMMER_TRY {
  ------------------
  |  |   49|  6.97k|#define IMMER_TRY try
  ------------------
 1808|  6.97k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  6.97k|            cpos.each_sub(visitor_t{}, merger);
 1810|  6.97k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  6.97k|            cpos.each_sub(dec_visitor{});
 1812|  6.97k|            return merger.finish();
 1813|  6.97k|        }
 1814|  6.97k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  6.97k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  2.75k|    {
 1959|  2.75k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  2.75k|    }
_ZNO5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7realizeEv:
 1527|  1.38M|    {
 1528|  1.38M|        if (count_ > 1) {
  ------------------
  |  Branch (1528:13): [True: 82.6k, False: 1.30M]
  ------------------
 1529|  82.6k|            IMMER_TRY {
  ------------------
  |  |   49|  82.6k|#define IMMER_TRY try
  ------------------
 1530|  82.6k|                auto result = node_t::make_inner_r_n(count_);
 1531|  82.6k|                auto r      = result->relaxed();
 1532|  82.6k|                r->d.count  = count_;
 1533|  82.6k|                std::copy(nodes_, nodes_ + count_, result->inner());
 1534|  82.6k|                std::copy(sizes_, sizes_ + count_, r->d.sizes);
 1535|  82.6k|                return {result, shift_, r};
 1536|  82.6k|            }
 1537|  82.6k|            IMMER_CATCH (...) {
 1538|      0|                each_sub(dec_visitor{});
 1539|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1540|      0|            }
 1541|  1.30M|        } else {
 1542|  1.30M|            assert(shift_ >= B + BL);
  ------------------
  |  Branch (1542:13): [True: 1.30M, False: 0]
  ------------------
 1543|  1.30M|            return {nodes_[0], shift_ - B, nodes_[0]->relaxed()};
 1544|  1.30M|        }
 1545|  1.38M|    }
_ZN5immer6detail4rbts12concat_treesINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jmSG_jSG_jm:
 1986|  1.37M|{
 1987|  1.37M|    return visit_maybe_relaxed_sub(lroot,
 1988|  1.37M|                                   lshift,
 1989|  1.37M|                                   lsize,
 1990|  1.37M|                                   concat_trees_left_visitor<Node>{},
 1991|  1.37M|                                   make_leaf_pos(ltail, ltcount),
 1992|  1.37M|                                   rroot,
 1993|  1.37M|                                   rshift,
 1994|  1.37M|                                   rsize)
 1995|  1.37M|        .realize();
 1996|  1.37M|}
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EENS1_8leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  1.35M|    {
 1972|  1.35M|        return visit_maybe_relaxed_sub(
 1973|  1.35M|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  1.35M|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  1.34M|    {
 1959|  1.34M|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  1.34M|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  15.6M|{
 1873|  15.6M|    auto lshift = lpos.shift();
 1874|  15.6M|    auto rshift = rpos.shift();
 1875|  15.6M|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 3.59M, False: 12.0M]
  ------------------
 1876|  3.59M|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  3.59M|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  12.0M|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 173k, False: 11.8M]
  ------------------
 1879|   173k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|   173k|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  11.8M|    } else {
 1882|  11.8M|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 11.8M, False: 0]
  ------------------
 1883|  11.8M|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 11.8M]
  |  Branch (1883:9): [True: 11.8M, False: 0]
  |  Branch (1883:9): [True: 11.8M, False: 0]
  ------------------
 1884|  11.8M|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  11.8M|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  11.8M|    }
 1887|  15.6M|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  3.59M|    {
 1898|  3.59M|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  3.59M|    }
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  4.70k|    {
 1898|  4.70k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  4.70k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  1.17M|{
 1873|  1.17M|    auto lshift = lpos.shift();
 1874|  1.17M|    auto rshift = rpos.shift();
 1875|  1.17M|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 2.56k, False: 1.17M]
  ------------------
 1876|  2.56k|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  2.56k|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  1.17M|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 7.10k, False: 1.16M]
  ------------------
 1879|  7.10k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|  7.10k|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  1.16M|    } else {
 1882|  1.16M|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 1.16M, False: 0]
  ------------------
 1883|  1.16M|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 1.16M]
  |  Branch (1883:9): [True: 1.16M, False: 0]
  |  Branch (1883:9): [True: 1.16M, False: 0]
  ------------------
 1884|  1.16M|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  1.16M|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  1.16M|    }
 1887|  1.17M|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EENS1_12null_sub_posEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  3.83k|{
 1824|  3.83k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  3.83k|    plan.fill(lpos, cpos, rpos);
 1826|  3.83k|    plan.shuffle(cpos.shift());
 1827|  3.83k|    IMMER_TRY {
  ------------------
  |  |   49|  3.83k|#define IMMER_TRY try
  ------------------
 1828|  3.83k|        return plan.merge(lpos, cpos, rpos);
 1829|  3.83k|    }
 1830|  3.83k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  3.83k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEEvOT_OT0_OT1_:
 1752|  3.83k|    {
 1753|  3.83k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 3.83k, False: 0]
  ------------------
 1754|  3.83k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 3.83k, False: 0]
  ------------------
 1755|  3.83k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  3.83k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  3.83k|        cpos.each_sub(visitor_t{}, *this);
 1758|  3.83k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  3.83k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  3.83k|    {
 1803|  3.83k|        using node_t    = node_type<CPos>;
 1804|  3.83k|        using merger_t  = concat_merger<node_t>;
 1805|  3.83k|        using visitor_t = concat_merger_visitor;
 1806|  3.83k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  3.83k|        IMMER_TRY {
  ------------------
  |  |   49|  3.83k|#define IMMER_TRY try
  ------------------
 1808|  3.83k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  3.83k|            cpos.each_sub(visitor_t{}, merger);
 1810|  3.83k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  3.83k|            cpos.each_sub(dec_visitor{});
 1812|  3.83k|            return merger.finish();
 1813|  3.83k|        }
 1814|  3.83k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  3.83k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  1.16M|    {
 1918|  1.16M|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  1.16M|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|   314k|    {
 1918|   314k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|   314k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|   333k|{
 1873|   333k|    auto lshift = lpos.shift();
 1874|   333k|    auto rshift = rpos.shift();
 1875|   333k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 1.26k, False: 332k]
  ------------------
 1876|  1.26k|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  1.26k|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|   332k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 713, False: 331k]
  ------------------
 1879|    713|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    713|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|   331k|    } else {
 1882|   331k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 331k, False: 0]
  ------------------
 1883|   331k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 331k]
  |  Branch (1883:9): [True: 331k, False: 0]
  |  Branch (1883:9): [True: 331k, False: 0]
  ------------------
 1884|   331k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|   331k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|   331k|    }
 1887|   333k|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  1.81k|    {
 1898|  1.81k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  1.81k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  17.2k|    {
 1918|  17.2k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  17.2k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  17.2k|{
 1873|  17.2k|    auto lshift = lpos.shift();
 1874|  17.2k|    auto rshift = rpos.shift();
 1875|  17.2k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 17.2k]
  ------------------
 1876|      0|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|      0|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  17.2k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 236, False: 17.0k]
  ------------------
 1879|    236|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    236|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  17.0k|    } else {
 1882|  17.0k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 17.0k, False: 0]
  ------------------
 1883|  17.0k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 17.0k]
  |  Branch (1883:9): [True: 17.0k, False: 0]
  |  Branch (1883:9): [True: 17.0k, False: 0]
  ------------------
 1884|  17.0k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  17.0k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  17.0k|    }
 1887|  17.2k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  11.1k|    {
 1945|  11.1k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  11.1k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|   344k|    {
 1925|   344k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|   344k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_13full_leaf_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|   344k|{
 1839|   344k|    static_assert(Node::bits >= 2, "");
 1840|   344k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 344k, False: 0]
  ------------------
 1841|   344k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 344k, False: 0]
  ------------------
 1842|   344k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 344k, False: 0]
  ------------------
 1843|   344k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 344k, False: 0]
  ------------------
 1844|   344k|        return {
 1845|   344k|            Node::bits_leaf,
 1846|   344k|            lpos.node()->inc(),
 1847|   344k|            lpos.count(),
 1848|   344k|            tpos.node()->inc(),
 1849|   344k|            tpos.count(),
 1850|   344k|            rpos.node()->inc(),
 1851|   344k|            rpos.count(),
 1852|   344k|        };
 1853|      0|    else
 1854|      0|        return {
 1855|      0|            Node::bits_leaf,
 1856|      0|            lpos.node()->inc(),
 1857|      0|            lpos.count(),
 1858|      0|            rpos.node()->inc(),
 1859|      0|            rpos.count(),
 1860|      0|        };
 1861|   344k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  7.46k|    {
 1938|  7.46k|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  7.46k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  17.0k|{
 1824|  17.0k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  17.0k|    plan.fill(lpos, cpos, rpos);
 1826|  17.0k|    plan.shuffle(cpos.shift());
 1827|  17.0k|    IMMER_TRY {
  ------------------
  |  |   49|  17.0k|#define IMMER_TRY try
  ------------------
 1828|  17.0k|        return plan.merge(lpos, cpos, rpos);
 1829|  17.0k|    }
 1830|  17.0k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  17.0k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|  17.0k|    {
 1753|  17.0k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 17.0k, False: 0]
  ------------------
 1754|  17.0k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 17.0k, False: 0]
  ------------------
 1755|  17.0k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  17.0k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  17.0k|        cpos.each_sub(visitor_t{}, *this);
 1758|  17.0k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  17.0k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  17.0k|    {
 1803|  17.0k|        using node_t    = node_type<CPos>;
 1804|  17.0k|        using merger_t  = concat_merger<node_t>;
 1805|  17.0k|        using visitor_t = concat_merger_visitor;
 1806|  17.0k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  17.0k|        IMMER_TRY {
  ------------------
  |  |   49|  17.0k|#define IMMER_TRY try
  ------------------
 1808|  17.0k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  17.0k|            cpos.each_sub(visitor_t{}, merger);
 1810|  17.0k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  17.0k|            cpos.each_sub(dec_visitor{});
 1812|  17.0k|            return merger.finish();
 1813|  17.0k|        }
 1814|  17.0k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  17.0k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|   333k|    {
 1945|   333k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|   333k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|  1.03M|    {
 1925|  1.03M|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|  1.03M|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|  1.03M|{
 1839|  1.03M|    static_assert(Node::bits >= 2, "");
 1840|  1.03M|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 1.03M, False: 0]
  ------------------
 1841|  1.03M|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 1.03M, False: 0]
  ------------------
 1842|  1.03M|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 1.03M, False: 0]
  ------------------
 1843|  1.03M|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 1.03M, False: 0]
  ------------------
 1844|  1.03M|        return {
 1845|  1.03M|            Node::bits_leaf,
 1846|  1.03M|            lpos.node()->inc(),
 1847|  1.03M|            lpos.count(),
 1848|  1.03M|            tpos.node()->inc(),
 1849|  1.03M|            tpos.count(),
 1850|  1.03M|            rpos.node()->inc(),
 1851|  1.03M|            rpos.count(),
 1852|  1.03M|        };
 1853|      0|    else
 1854|      0|        return {
 1855|      0|            Node::bits_leaf,
 1856|      0|            lpos.node()->inc(),
 1857|      0|            lpos.count(),
 1858|      0|            rpos.node()->inc(),
 1859|      0|            rpos.count(),
 1860|      0|        };
 1861|  1.03M|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  8.87k|    {
 1938|  8.87k|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  8.87k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EESF_EENSG_IT_EEOT0_OT1_OT2_:
 1823|   331k|{
 1824|   331k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|   331k|    plan.fill(lpos, cpos, rpos);
 1826|   331k|    plan.shuffle(cpos.shift());
 1827|   331k|    IMMER_TRY {
  ------------------
  |  |   49|   331k|#define IMMER_TRY try
  ------------------
 1828|   331k|        return plan.merge(lpos, cpos, rpos);
 1829|   331k|    }
 1830|   331k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|   331k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EEvOT_OT0_OT1_:
 1752|   331k|    {
 1753|   331k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 331k, False: 0]
  ------------------
 1754|   331k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 331k, False: 0]
  ------------------
 1755|   331k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|   331k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|   331k|        cpos.each_sub(visitor_t{}, *this);
 1758|   331k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|   331k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSN_OT1_:
 1802|   331k|    {
 1803|   331k|        using node_t    = node_type<CPos>;
 1804|   331k|        using merger_t  = concat_merger<node_t>;
 1805|   331k|        using visitor_t = concat_merger_visitor;
 1806|   331k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|   331k|        IMMER_TRY {
  ------------------
  |  |   49|   331k|#define IMMER_TRY try
  ------------------
 1808|   331k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|   331k|            cpos.each_sub(visitor_t{}, merger);
 1810|   331k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|   331k|            cpos.each_sub(dec_visitor{});
 1812|   331k|            return merger.finish();
 1813|   331k|        }
 1814|   331k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|   331k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  1.03M|    {
 1945|  1.03M|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  1.03M|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  1.47M|    {
 1938|  1.47M|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  1.47M|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_11relaxed_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  1.16M|{
 1824|  1.16M|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  1.16M|    plan.fill(lpos, cpos, rpos);
 1826|  1.16M|    plan.shuffle(cpos.shift());
 1827|  1.16M|    IMMER_TRY {
  ------------------
  |  |   49|  1.16M|#define IMMER_TRY try
  ------------------
 1828|  1.16M|        return plan.merge(lpos, cpos, rpos);
 1829|  1.16M|    }
 1830|  1.16M|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  1.16M|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEEvOT_OT0_OT1_:
 1752|  1.16M|    {
 1753|  1.16M|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 1.16M, False: 0]
  ------------------
 1754|  1.16M|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 1.16M, False: 0]
  ------------------
 1755|  1.16M|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  1.16M|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  1.16M|        cpos.each_sub(visitor_t{}, *this);
 1758|  1.16M|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  1.16M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  1.16M|    {
 1803|  1.16M|        using node_t    = node_type<CPos>;
 1804|  1.16M|        using merger_t  = concat_merger<node_t>;
 1805|  1.16M|        using visitor_t = concat_merger_visitor;
 1806|  1.16M|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  1.16M|        IMMER_TRY {
  ------------------
  |  |   49|  1.16M|#define IMMER_TRY try
  ------------------
 1808|  1.16M|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  1.16M|            cpos.each_sub(visitor_t{}, merger);
 1810|  1.16M|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  1.16M|            cpos.each_sub(dec_visitor{});
 1812|  1.16M|            return merger.finish();
 1813|  1.16M|        }
 1814|  1.16M|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  1.16M|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EENS1_12null_sub_posEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  3.61M|{
 1824|  3.61M|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  3.61M|    plan.fill(lpos, cpos, rpos);
 1826|  3.61M|    plan.shuffle(cpos.shift());
 1827|  3.61M|    IMMER_TRY {
  ------------------
  |  |   49|  3.61M|#define IMMER_TRY try
  ------------------
 1828|  3.61M|        return plan.merge(lpos, cpos, rpos);
 1829|  3.61M|    }
 1830|  3.61M|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  3.61M|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEEvOT_OT0_OT1_:
 1752|  3.61M|    {
 1753|  3.61M|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 3.61M, False: 0]
  ------------------
 1754|  3.61M|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 3.61M, False: 0]
  ------------------
 1755|  3.61M|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  3.61M|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  3.61M|        cpos.each_sub(visitor_t{}, *this);
 1758|  3.61M|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  3.61M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  3.61M|    {
 1803|  3.61M|        using node_t    = node_type<CPos>;
 1804|  3.61M|        using merger_t  = concat_merger<node_t>;
 1805|  3.61M|        using visitor_t = concat_merger_visitor;
 1806|  3.61M|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  3.61M|        IMMER_TRY {
  ------------------
  |  |   49|  3.61M|#define IMMER_TRY try
  ------------------
 1808|  3.61M|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  3.61M|            cpos.each_sub(visitor_t{}, merger);
 1810|  3.61M|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  3.61M|            cpos.each_sub(dec_visitor{});
 1812|  3.61M|            return merger.finish();
 1813|  3.61M|        }
 1814|  3.61M|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  3.61M|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  10.7M|    {
 1918|  10.7M|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  10.7M|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  1.26k|    {
 1918|  1.26k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  1.26k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  34.0k|{
 1873|  34.0k|    auto lshift = lpos.shift();
 1874|  34.0k|    auto rshift = rpos.shift();
 1875|  34.0k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 22.2k, False: 11.8k]
  ------------------
 1876|  22.2k|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  22.2k|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  22.2k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 480, False: 11.3k]
  ------------------
 1879|    480|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    480|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  11.3k|    } else {
 1882|  11.3k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 11.3k, False: 0]
  ------------------
 1883|  11.3k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 11.3k]
  |  Branch (1883:9): [True: 11.3k, False: 0]
  |  Branch (1883:9): [True: 11.3k, False: 0]
  ------------------
 1884|  11.3k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  11.3k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  11.3k|    }
 1887|  34.0k|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  21.7k|    {
 1898|  21.7k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  21.7k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  2.34k|    {
 1918|  2.34k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  2.34k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  2.34k|{
 1873|  2.34k|    auto lshift = lpos.shift();
 1874|  2.34k|    auto rshift = rpos.shift();
 1875|  2.34k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 2.34k]
  ------------------
 1876|      0|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|      0|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  2.34k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 208, False: 2.13k]
  ------------------
 1879|    208|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    208|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  2.13k|    } else {
 1882|  2.13k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 2.13k, False: 0]
  ------------------
 1883|  2.13k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 2.13k]
  |  Branch (1883:9): [True: 2.13k, False: 0]
  |  Branch (1883:9): [True: 2.13k, False: 0]
  ------------------
 1884|  2.13k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  2.13k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  2.13k|    }
 1887|  2.34k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|    544|    {
 1938|    544|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|    544|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  2.13k|{
 1824|  2.13k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  2.13k|    plan.fill(lpos, cpos, rpos);
 1826|  2.13k|    plan.shuffle(cpos.shift());
 1827|  2.13k|    IMMER_TRY {
  ------------------
  |  |   49|  2.13k|#define IMMER_TRY try
  ------------------
 1828|  2.13k|        return plan.merge(lpos, cpos, rpos);
 1829|  2.13k|    }
 1830|  2.13k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  2.13k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|  2.13k|    {
 1753|  2.13k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 2.13k, False: 0]
  ------------------
 1754|  2.13k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 2.13k, False: 0]
  ------------------
 1755|  2.13k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  2.13k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  2.13k|        cpos.each_sub(visitor_t{}, *this);
 1758|  2.13k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  2.13k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  2.13k|    {
 1803|  2.13k|        using node_t    = node_type<CPos>;
 1804|  2.13k|        using merger_t  = concat_merger<node_t>;
 1805|  2.13k|        using visitor_t = concat_merger_visitor;
 1806|  2.13k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  2.13k|        IMMER_TRY {
  ------------------
  |  |   49|  2.13k|#define IMMER_TRY try
  ------------------
 1808|  2.13k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  2.13k|            cpos.each_sub(visitor_t{}, merger);
 1810|  2.13k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  2.13k|            cpos.each_sub(dec_visitor{});
 1812|  2.13k|            return merger.finish();
 1813|  2.13k|        }
 1814|  2.13k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  2.13k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  1.11k|    {
 1938|  1.11k|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  1.11k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  11.3k|{
 1824|  11.3k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  11.3k|    plan.fill(lpos, cpos, rpos);
 1826|  11.3k|    plan.shuffle(cpos.shift());
 1827|  11.3k|    IMMER_TRY {
  ------------------
  |  |   49|  11.3k|#define IMMER_TRY try
  ------------------
 1828|  11.3k|        return plan.merge(lpos, cpos, rpos);
 1829|  11.3k|    }
 1830|  11.3k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  11.3k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEEvOT_OT0_OT1_:
 1752|  11.3k|    {
 1753|  11.3k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 11.3k, False: 0]
  ------------------
 1754|  11.3k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 11.3k, False: 0]
  ------------------
 1755|  11.3k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  11.3k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  11.3k|        cpos.each_sub(visitor_t{}, *this);
 1758|  11.3k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  11.3k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  11.3k|    {
 1803|  11.3k|        using node_t    = node_type<CPos>;
 1804|  11.3k|        using merger_t  = concat_merger<node_t>;
 1805|  11.3k|        using visitor_t = concat_merger_visitor;
 1806|  11.3k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  11.3k|        IMMER_TRY {
  ------------------
  |  |   49|  11.3k|#define IMMER_TRY try
  ------------------
 1808|  11.3k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  11.3k|            cpos.each_sub(visitor_t{}, merger);
 1810|  11.3k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  11.3k|            cpos.each_sub(dec_visitor{});
 1812|  11.3k|            return merger.finish();
 1813|  11.3k|        }
 1814|  11.3k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  11.3k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  10.5M|    {
 1938|  10.5M|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  10.5M|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EESF_EENSG_IT_EEOT0_OT1_OT2_:
 1823|  11.8M|{
 1824|  11.8M|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  11.8M|    plan.fill(lpos, cpos, rpos);
 1826|  11.8M|    plan.shuffle(cpos.shift());
 1827|  11.8M|    IMMER_TRY {
  ------------------
  |  |   49|  11.8M|#define IMMER_TRY try
  ------------------
 1828|  11.8M|        return plan.merge(lpos, cpos, rpos);
 1829|  11.8M|    }
 1830|  11.8M|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  11.8M|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EEvOT_OT0_OT1_:
 1752|  11.8M|    {
 1753|  11.8M|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 11.8M, False: 0]
  ------------------
 1754|  11.8M|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 11.8M, False: 0]
  ------------------
 1755|  11.8M|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  11.8M|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  11.8M|        cpos.each_sub(visitor_t{}, *this);
 1758|  11.8M|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  11.8M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSN_OT1_:
 1802|  11.8M|    {
 1803|  11.8M|        using node_t    = node_type<CPos>;
 1804|  11.8M|        using merger_t  = concat_merger<node_t>;
 1805|  11.8M|        using visitor_t = concat_merger_visitor;
 1806|  11.8M|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  11.8M|        IMMER_TRY {
  ------------------
  |  |   49|  11.8M|#define IMMER_TRY try
  ------------------
 1808|  11.8M|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  11.8M|            cpos.each_sub(visitor_t{}, merger);
 1810|  11.8M|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  11.8M|            cpos.each_sub(dec_visitor{});
 1812|  11.8M|            return merger.finish();
 1813|  11.8M|        }
 1814|  11.8M|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  11.8M|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  11.0k|    {
 1959|  11.0k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  11.0k|    }
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EENS1_8leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  23.2k|    {
 1972|  23.2k|        return visit_maybe_relaxed_sub(
 1973|  23.2k|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  23.2k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  6.19k|    {
 1959|  6.19k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  6.19k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  17.0k|    {
 1959|  17.0k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  17.0k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_NSA_5applyIS7_E4type4editESI_j:
  680|   197k|    {
  681|   197k|        auto node     = pos.node();
  682|   197k|        auto level    = pos.shift();
  683|   197k|        auto idx      = pos.count() - 1;
  684|   197k|        auto children = pos.size(idx);
  685|   197k|        auto new_idx =
  686|   197k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (686:13): [True: 4.25k, False: 193k]
  |  Branch (686:47): [True: 292, False: 193k]
  ------------------
  687|   197k|        auto new_child = static_cast<node_t*>(nullptr);
  688|   197k|        auto mutate    = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (688:26): [True: 197k, Folded]
  |  Branch (688:38): [True: 194k, False: 2.73k]
  ------------------
  689|       |
  690|   197k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (690:13): [True: 1.87k, False: 195k]
  ------------------
  691|  1.87k|            return nullptr;
  692|   195k|        else if (idx == new_idx) {
  ------------------
  |  Branch (692:18): [True: 193k, False: 2.67k]
  ------------------
  693|   193k|            new_child =
  694|   193k|                mutate ? pos.last_oh_csh(this_t{}, idx, children, e, tail, ts)
  ------------------
  |  Branch (694:17): [True: 191k, False: 1.86k]
  ------------------
  695|   193k|                       : pos.last_oh_csh(
  696|  1.86k|                             this_no_mut_t{}, idx, children, e, tail, ts);
  697|   193k|            if (!new_child) {
  ------------------
  |  Branch (697:17): [True: 2.03k, False: 191k]
  ------------------
  698|  2.03k|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (698:21): [True: 594, False: 1.44k]
  ------------------
  699|    594|                    new_child = node_t::make_path_e(e, level - B, tail);
  700|  1.44k|                else
  701|  1.44k|                    return nullptr;
  702|  2.03k|            }
  703|   193k|        } else
  704|  2.67k|            new_child = node_t::make_path_e(e, level - B, tail);
  705|       |
  706|   194k|        if (mutate) {
  ------------------
  |  Branch (706:13): [True: 192k, False: 1.96k]
  ------------------
  707|   192k|            auto count             = new_idx + 1;
  708|   192k|            auto relaxed           = node->ensure_mutable_relaxed_n(e, new_idx);
  709|   192k|            node->inner()[new_idx] = new_child;
  710|   192k|            relaxed->d.sizes[new_idx] = pos.size() + ts;
  711|   192k|            relaxed->d.count          = count;
  712|   192k|            assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (712:13): [True: 192k, False: 0]
  ------------------
  713|   192k|            return node;
  714|   192k|        } else {
  715|  1.96k|            IMMER_TRY {
  ------------------
  |  |   49|  1.96k|#define IMMER_TRY try
  ------------------
  716|  1.96k|                auto count    = new_idx + 1;
  717|  1.96k|                auto new_node = node_t::copy_inner_r_e(e, pos.node(), new_idx);
  718|  1.96k|                auto relaxed  = new_node->relaxed();
  719|  1.96k|                new_node->inner()[new_idx] = new_child;
  720|  1.96k|                relaxed->d.sizes[new_idx]  = pos.size() + ts;
  721|  1.96k|                relaxed->d.count           = count;
  722|  1.96k|                assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (722:17): [True: 1.96k, False: 0]
  ------------------
  723|  1.96k|                if (Mutating)
  ------------------
  |  Branch (723:21): [True: 1.96k, Folded]
  ------------------
  724|  1.96k|                    pos.visit(dec_visitor{});
  725|  1.96k|                return new_node;
  726|  1.96k|            }
  727|  1.96k|            IMMER_CATCH (...) {
  728|      0|                auto shift = pos.shift();
  729|      0|                auto size  = new_idx == idx ? children + ts : ts;
  ------------------
  |  Branch (729:30): [True: 0, False: 0]
  ------------------
  730|      0|                if (shift > BL) {
  ------------------
  |  Branch (730:21): [True: 0, False: 0]
  ------------------
  731|      0|                    tail->inc();
  732|      0|                    dec_inner(new_child, shift - B, size);
  733|      0|                }
  734|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  735|      0|            }
  736|  1.96k|        }
  737|   194k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_NSA_5applyIS7_E4type4editESJ_DpOT0_:
  741|   166k|    {
  742|   166k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 166k, False: 0]
  ------------------
  743|   166k|        auto node    = pos.node();
  744|   166k|        auto idx     = pos.index(pos.size() - 1);
  745|   166k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|   166k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 166k, Folded]
  |  Branch (746:36): [True: 165k, False: 597]
  ------------------
  747|   166k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 165k, False: 597]
  ------------------
  748|   165k|            node->inner()[new_idx] =
  749|   165k|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 162k, False: 2.85k]
  ------------------
  750|       |                               /* otherwise */
  751|   165k|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|   165k|            return node;
  753|   165k|        } else {
  754|    597|            auto new_parent = node_t::make_inner_e(e);
  755|    597|            IMMER_TRY {
  ------------------
  |  |   49|    597|#define IMMER_TRY try
  ------------------
  756|    597|                new_parent->inner()[new_idx] =
  757|    597|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 304, False: 293]
  ------------------
  758|    597|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|    597|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|    597|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|    597|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 597, Folded]
  ------------------
  763|    597|                    pos.visit(dec_visitor{});
  764|    597|                return new_parent;
  765|    597|            }
  766|    597|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|    597|        }
  771|   166k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|  1.45M|    {
  742|  1.45M|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 1.45M, False: 0]
  ------------------
  743|  1.45M|        auto node    = pos.node();
  744|  1.45M|        auto idx     = pos.index(pos.size() - 1);
  745|  1.45M|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|  1.45M|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 1.45M, Folded]
  |  Branch (746:36): [True: 1.45M, False: 1.90k]
  ------------------
  747|  1.45M|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 1.45M, False: 1.90k]
  ------------------
  748|  1.45M|            node->inner()[new_idx] =
  749|  1.45M|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 1.13M, False: 314k]
  ------------------
  750|       |                               /* otherwise */
  751|  1.45M|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|  1.45M|            return node;
  753|  1.45M|        } else {
  754|  1.90k|            auto new_parent = node_t::make_inner_e(e);
  755|  1.90k|            IMMER_TRY {
  ------------------
  |  |   49|  1.90k|#define IMMER_TRY try
  ------------------
  756|  1.90k|                new_parent->inner()[new_idx] =
  757|  1.90k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 1.13k, False: 765]
  ------------------
  758|  1.90k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  1.90k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  1.90k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  1.90k|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 1.90k, Folded]
  ------------------
  763|  1.90k|                    pos.visit(dec_visitor{});
  764|  1.90k|                return new_parent;
  765|  1.90k|            }
  766|  1.90k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  1.90k|        }
  771|  1.45M|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|  3.44k|    {
  742|  3.44k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 3.44k, False: 0]
  ------------------
  743|  3.44k|        auto node    = pos.node();
  744|  3.44k|        auto idx     = pos.index(pos.size() - 1);
  745|  3.44k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|  3.44k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [Folded, False: 3.44k]
  |  Branch (746:36): [True: 0, False: 0]
  ------------------
  747|  3.44k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 0, False: 3.44k]
  ------------------
  748|      0|            node->inner()[new_idx] =
  749|      0|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 0, False: 0]
  ------------------
  750|       |                               /* otherwise */
  751|      0|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|      0|            return node;
  753|  3.44k|        } else {
  754|  3.44k|            auto new_parent = node_t::make_inner_e(e);
  755|  3.44k|            IMMER_TRY {
  ------------------
  |  |   49|  3.44k|#define IMMER_TRY try
  ------------------
  756|  3.44k|                new_parent->inner()[new_idx] =
  757|  3.44k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 1.18k, False: 2.25k]
  ------------------
  758|  3.44k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  3.44k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  3.44k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  3.44k|                if (Mutating)
  ------------------
  |  Branch (762:21): [Folded, False: 3.44k]
  ------------------
  763|      0|                    pos.visit(dec_visitor{});
  764|  3.44k|                return new_parent;
  765|  3.44k|            }
  766|  3.44k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  3.44k|        }
  771|  3.44k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_NSA_5applyIS7_E4type4editESI_j:
  680|  4.44k|    {
  681|  4.44k|        auto node     = pos.node();
  682|  4.44k|        auto level    = pos.shift();
  683|  4.44k|        auto idx      = pos.count() - 1;
  684|  4.44k|        auto children = pos.size(idx);
  685|  4.44k|        auto new_idx =
  686|  4.44k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (686:13): [True: 939, False: 3.50k]
  |  Branch (686:47): [True: 199, False: 3.31k]
  ------------------
  687|  4.44k|        auto new_child = static_cast<node_t*>(nullptr);
  688|  4.44k|        auto mutate    = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (688:26): [Folded, False: 4.44k]
  |  Branch (688:38): [True: 0, False: 0]
  ------------------
  689|       |
  690|  4.44k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (690:13): [True: 354, False: 4.09k]
  ------------------
  691|    354|            return nullptr;
  692|  4.09k|        else if (idx == new_idx) {
  ------------------
  |  Branch (692:18): [True: 3.31k, False: 784]
  ------------------
  693|  3.31k|            new_child =
  694|  3.31k|                mutate ? pos.last_oh_csh(this_t{}, idx, children, e, tail, ts)
  ------------------
  |  Branch (694:17): [True: 0, False: 3.31k]
  ------------------
  695|  3.31k|                       : pos.last_oh_csh(
  696|  3.31k|                             this_no_mut_t{}, idx, children, e, tail, ts);
  697|  3.31k|            if (!new_child) {
  ------------------
  |  Branch (697:17): [True: 584, False: 2.72k]
  ------------------
  698|    584|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (698:21): [True: 220, False: 364]
  ------------------
  699|    220|                    new_child = node_t::make_path_e(e, level - B, tail);
  700|    364|                else
  701|    364|                    return nullptr;
  702|    584|            }
  703|  3.31k|        } else
  704|    784|            new_child = node_t::make_path_e(e, level - B, tail);
  705|       |
  706|  3.73k|        if (mutate) {
  ------------------
  |  Branch (706:13): [True: 0, False: 3.73k]
  ------------------
  707|      0|            auto count             = new_idx + 1;
  708|      0|            auto relaxed           = node->ensure_mutable_relaxed_n(e, new_idx);
  709|      0|            node->inner()[new_idx] = new_child;
  710|      0|            relaxed->d.sizes[new_idx] = pos.size() + ts;
  711|      0|            relaxed->d.count          = count;
  712|      0|            assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (712:13): [True: 0, False: 0]
  ------------------
  713|      0|            return node;
  714|  3.73k|        } else {
  715|  3.73k|            IMMER_TRY {
  ------------------
  |  |   49|  3.73k|#define IMMER_TRY try
  ------------------
  716|  3.73k|                auto count    = new_idx + 1;
  717|  3.73k|                auto new_node = node_t::copy_inner_r_e(e, pos.node(), new_idx);
  718|  3.73k|                auto relaxed  = new_node->relaxed();
  719|  3.73k|                new_node->inner()[new_idx] = new_child;
  720|  3.73k|                relaxed->d.sizes[new_idx]  = pos.size() + ts;
  721|  3.73k|                relaxed->d.count           = count;
  722|  3.73k|                assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (722:17): [True: 3.73k, False: 0]
  ------------------
  723|  3.73k|                if (Mutating)
  ------------------
  |  Branch (723:21): [Folded, False: 3.73k]
  ------------------
  724|      0|                    pos.visit(dec_visitor{});
  725|  3.73k|                return new_node;
  726|  3.73k|            }
  727|  3.73k|            IMMER_CATCH (...) {
  728|      0|                auto shift = pos.shift();
  729|      0|                auto size  = new_idx == idx ? children + ts : ts;
  ------------------
  |  Branch (729:30): [True: 0, False: 0]
  ------------------
  730|      0|                if (shift > BL) {
  ------------------
  |  Branch (730:21): [True: 0, False: 0]
  ------------------
  731|      0|                    tail->inc();
  732|      0|                    dec_inner(new_child, shift - B, size);
  733|      0|                }
  734|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  735|      0|            }
  736|  3.73k|        }
  737|  3.73k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_NSA_5applyIS7_E4type4editESJ_DpOT0_:
  741|    726|    {
  742|    726|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 726, False: 0]
  ------------------
  743|    726|        auto node    = pos.node();
  744|    726|        auto idx     = pos.index(pos.size() - 1);
  745|    726|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|    726|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [Folded, False: 726]
  |  Branch (746:36): [True: 0, False: 0]
  ------------------
  747|    726|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 0, False: 726]
  ------------------
  748|      0|            node->inner()[new_idx] =
  749|      0|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 0, False: 0]
  ------------------
  750|       |                               /* otherwise */
  751|      0|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|      0|            return node;
  753|    726|        } else {
  754|    726|            auto new_parent = node_t::make_inner_e(e);
  755|    726|            IMMER_TRY {
  ------------------
  |  |   49|    726|#define IMMER_TRY try
  ------------------
  756|    726|                new_parent->inner()[new_idx] =
  757|    726|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 450, False: 276]
  ------------------
  758|    726|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|    726|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|    726|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|    726|                if (Mutating)
  ------------------
  |  Branch (762:21): [Folded, False: 726]
  ------------------
  763|      0|                    pos.visit(dec_visitor{});
  764|    726|                return new_parent;
  765|    726|            }
  766|    726|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|    726|        }
  771|    726|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|   162k|    {
  742|   162k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 162k, False: 0]
  ------------------
  743|   162k|        auto node    = pos.node();
  744|   162k|        auto idx     = pos.index(pos.size() - 1);
  745|   162k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|   162k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 162k, Folded]
  |  Branch (746:36): [True: 161k, False: 664]
  ------------------
  747|   162k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 161k, False: 664]
  ------------------
  748|   161k|            node->inner()[new_idx] =
  749|   161k|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 153k, False: 7.59k]
  ------------------
  750|       |                               /* otherwise */
  751|   161k|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|   161k|            return node;
  753|   161k|        } else {
  754|    664|            auto new_parent = node_t::make_inner_e(e);
  755|    664|            IMMER_TRY {
  ------------------
  |  |   49|    664|#define IMMER_TRY try
  ------------------
  756|    664|                new_parent->inner()[new_idx] =
  757|    664|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 365, False: 299]
  ------------------
  758|    664|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|    664|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|    664|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|    664|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 664, Folded]
  ------------------
  763|    664|                    pos.visit(dec_visitor{});
  764|    664|                return new_parent;
  765|    664|            }
  766|    664|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|    664|        }
  771|   162k|    }
_ZN5immer6detail4rbts17dec_empty_regularINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEvPT_:
  580|  1.80k|{
  581|  1.80k|    make_empty_regular_pos(node).visit(dec_visitor());
  582|  1.80k|}
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  595|  70.5k|    {
  596|  70.5k|        auto offset = pos.index(idx);
  597|  70.5k|        auto count  = pos.count();
  598|  70.5k|        auto node   = pos.node();
  599|  70.5k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (599:13): [True: 48.5k, False: 21.9k]
  ------------------
  600|  48.5k|            return pos.towards_oh(
  601|  48.5k|                this_t{}, idx, offset, e, &node->inner()[offset]);
  602|  48.5k|        } else {
  603|  21.9k|            auto new_node = node_t::copy_inner_sr_e(e, node, count);
  604|  21.9k|            IMMER_TRY {
  ------------------
  |  |   49|  21.9k|#define IMMER_TRY try
  ------------------
  605|  21.9k|                auto& res = pos.towards_oh(
  606|  21.9k|                    this_t{}, idx, offset, e, &new_node->inner()[offset]);
  607|  21.9k|                pos.visit(dec_visitor{});
  608|  21.9k|                *location = new_node;
  609|  21.9k|                return res;
  610|  21.9k|            }
  611|  21.9k|            IMMER_CATCH (...) {
  612|      0|                dec_relaxed(new_node, pos.shift());
  613|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  614|      0|            }
  615|  21.9k|        }
  616|  70.5k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|  11.3k|    {
  653|  11.3k|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 11.3k, False: 0]
  ------------------
  654|  11.3k|        auto node = pos.node();
  655|  11.3k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 768, False: 10.5k]
  ------------------
  656|    768|            return node->leaf()[pos.index(idx)];
  657|  10.5k|        } else {
  658|  10.5k|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|  10.5k|            pos.visit(dec_visitor{});
  660|  10.5k|            *location = new_node;
  661|  10.5k|            return new_node->leaf()[pos.index(idx)];
  662|  10.5k|        }
  663|  11.3k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  4.31k|    {
  622|  4.31k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 4.31k, False: 0]
  ------------------
  623|  4.31k|        auto offset = pos.index(idx);
  624|  4.31k|        auto count  = pos.count();
  625|  4.31k|        auto node   = pos.node();
  626|  4.31k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 2.41k, False: 1.89k]
  ------------------
  627|  2.41k|            return pos.towards_oh_ch(
  628|  2.41k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  2.41k|        } else {
  630|  1.89k|            auto new_node = node_t::copy_inner_e(e, node, count);
  631|  1.89k|            IMMER_TRY {
  ------------------
  |  |   49|  1.89k|#define IMMER_TRY try
  ------------------
  632|  1.89k|                auto& res = pos.towards_oh_ch(this_t{},
  633|  1.89k|                                              idx,
  634|  1.89k|                                              offset,
  635|  1.89k|                                              count,
  636|  1.89k|                                              e,
  637|  1.89k|                                              &new_node->inner()[offset]);
  638|  1.89k|                pos.visit(dec_visitor{});
  639|  1.89k|                *location = new_node;
  640|  1.89k|                return res;
  641|  1.89k|            }
  642|  1.89k|            IMMER_CATCH (...) {
  643|      0|                dec_regular(new_node, pos.shift(), pos.size());
  644|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  645|      0|            }
  646|  1.89k|        }
  647|  4.31k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|  3.40k|    {
  653|  3.40k|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 3.40k, False: 0]
  ------------------
  654|  3.40k|        auto node = pos.node();
  655|  3.40k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 1.44k, False: 1.96k]
  ------------------
  656|  1.44k|            return node->leaf()[pos.index(idx)];
  657|  1.96k|        } else {
  658|  1.96k|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|  1.96k|            pos.visit(dec_visitor{});
  660|  1.96k|            *location = new_node;
  661|  1.96k|            return new_node->leaf()[pos.index(idx)];
  662|  1.96k|        }
  663|  3.40k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_8full_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  2.84k|    {
  622|  2.84k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 2.84k, False: 0]
  ------------------
  623|  2.84k|        auto offset = pos.index(idx);
  624|  2.84k|        auto count  = pos.count();
  625|  2.84k|        auto node   = pos.node();
  626|  2.84k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 1.09k, False: 1.74k]
  ------------------
  627|  1.09k|            return pos.towards_oh_ch(
  628|  1.09k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  1.74k|        } else {
  630|  1.74k|            auto new_node = node_t::copy_inner_e(e, node, count);
  631|  1.74k|            IMMER_TRY {
  ------------------
  |  |   49|  1.74k|#define IMMER_TRY try
  ------------------
  632|  1.74k|                auto& res = pos.towards_oh_ch(this_t{},
  633|  1.74k|                                              idx,
  634|  1.74k|                                              offset,
  635|  1.74k|                                              count,
  636|  1.74k|                                              e,
  637|  1.74k|                                              &new_node->inner()[offset]);
  638|  1.74k|                pos.visit(dec_visitor{});
  639|  1.74k|                *location = new_node;
  640|  1.74k|                return res;
  641|  1.74k|            }
  642|  1.74k|            IMMER_CATCH (...) {
  643|      0|                dec_regular(new_node, pos.shift(), pos.size());
  644|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  645|      0|            }
  646|  1.74k|        }
  647|  2.84k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10visit_leafIRNS1_8leaf_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|    907|    {
  653|    907|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 907, False: 0]
  ------------------
  654|    907|        auto node = pos.node();
  655|    907|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 566, False: 341]
  ------------------
  656|    566|            return node->leaf()[pos.index(idx)];
  657|    566|        } else {
  658|    341|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|    341|            pos.visit(dec_visitor{});
  660|    341|            *location = new_node;
  661|    341|            return new_node->leaf()[pos.index(idx)];
  662|    341|        }
  663|    907|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  2.30k|    {
  622|  2.30k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 2.30k, False: 0]
  ------------------
  623|  2.30k|        auto offset = pos.index(idx);
  624|  2.30k|        auto count  = pos.count();
  625|  2.30k|        auto node   = pos.node();
  626|  2.30k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 1.39k, False: 911]
  ------------------
  627|  1.39k|            return pos.towards_oh_ch(
  628|  1.39k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  1.39k|        } else {
  630|    911|            auto new_node = node_t::copy_inner_e(e, node, count);
  631|    911|            IMMER_TRY {
  ------------------
  |  |   49|    911|#define IMMER_TRY try
  ------------------
  632|    911|                auto& res = pos.towards_oh_ch(this_t{},
  633|    911|                                              idx,
  634|    911|                                              offset,
  635|    911|                                              count,
  636|    911|                                              e,
  637|    911|                                              &new_node->inner()[offset]);
  638|    911|                pos.visit(dec_visitor{});
  639|    911|                *location = new_node;
  640|    911|                return res;
  641|    911|            }
  642|    911|            IMMER_CATCH (...) {
  643|      0|                dec_regular(new_node, pos.shift(), pos.size());
  644|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  645|      0|            }
  646|    911|        }
  647|  2.30k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  28.7k|    {
  914|  28.7k|        auto idx    = pos.index(last);
  915|  28.7k|        auto node   = pos.node();
  916|  28.7k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [True: 28.7k, Folded]
  |  Branch (916:35): [True: 19.7k, False: 8.92k]
  ------------------
  917|  28.7k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [True: 28.7k, Folded]
  |  Branch (917:25): [True: 15.0k, False: 13.7k]
  ------------------
  918|  15.0k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 10.0k, False: 4.96k]
  ------------------
  919|  15.0k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|  15.0k|            if (Mutating)
  ------------------
  |  Branch (920:17): [True: 15.0k, Folded]
  ------------------
  921|  15.0k|                pos.visit(dec_right_visitor{}, count_t{1});
  922|  15.0k|            return res;
  923|  15.0k|        } else {
  924|  13.7k|            using std::get;
  925|  13.7k|            auto subs =
  926|  13.7k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 9.75k, False: 3.95k]
  ------------------
  927|  13.7k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  13.7k|            auto next = get<1>(subs);
  929|  13.7k|            auto ts   = get<2>(subs);
  930|  13.7k|            auto tail = get<3>(subs);
  931|  13.7k|            IMMER_TRY {
  ------------------
  |  |   49|  13.7k|#define IMMER_TRY try
  ------------------
  932|  13.7k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 9.28k, False: 4.43k]
  ------------------
  933|  9.28k|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 6.48k, False: 2.79k]
  ------------------
  934|  6.48k|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|  6.48k|                        pos.each_right(dec_visitor{}, idx + 1);
  936|  6.48k|                        node->inner()[idx] = next;
  937|  6.48k|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|  6.48k|                        nodr->d.count      = idx + 1;
  939|  6.48k|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 6.48k, False: 0]
  ------------------
  940|  6.48k|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|  6.48k|                    } else {
  942|  2.79k|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|  2.79k|                        auto newr = newn->relaxed();
  944|  2.79k|                        newn->inner()[idx] = next;
  945|  2.79k|                        newr->d.sizes[idx] = last + 1 - ts;
  946|  2.79k|                        newr->d.count      = idx + 1;
  947|  2.79k|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 2.79k, False: 0]
  ------------------
  948|  2.79k|                        if (Mutating)
  ------------------
  |  Branch (948:29): [True: 2.79k, Folded]
  ------------------
  949|  2.79k|                            pos.visit(dec_visitor{});
  950|  2.79k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|  2.79k|                    }
  952|  9.28k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 0, False: 4.43k]
  ------------------
  953|      0|                    if (Mutating)
  ------------------
  |  Branch (953:25): [True: 0, Folded]
  ------------------
  954|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  4.43k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [True: 4.43k, Folded]
  |  Branch (956:40): [True: 3.82k, False: 608]
  |  Branch (956:52): [True: 2.84k, False: 987]
  ------------------
  957|  2.84k|                    auto newn = pos.node()->inner()[0];
  958|  2.84k|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 811, False: 2.03k]
  ------------------
  959|    811|                        newn->inc();
  960|  2.84k|                    if (Mutating)
  ------------------
  |  Branch (960:25): [True: 2.84k, Folded]
  ------------------
  961|  2.84k|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|  2.84k|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|  2.84k|                } else {
  964|  1.59k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 1.24k, False: 354]
  ------------------
  965|  1.24k|                        pos.each_right(dec_visitor{}, idx + 1);
  966|  1.24k|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|  1.24k|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|  1.24k|                    } else {
  969|    354|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    354|                        if (Mutating)
  ------------------
  |  Branch (970:29): [True: 354, Folded]
  ------------------
  971|    354|                            pos.visit(dec_visitor{});
  972|    354|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    354|                    }
  974|  1.59k|                }
  975|  13.7k|            }
  976|  13.7k|            IMMER_CATCH (...) {
  977|      0|                assert(!mutate);
  ------------------
  |  Branch (977:17): [True: 0, False: 0]
  ------------------
  978|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  ------------------
  979|      0|                if (next)
  ------------------
  |  Branch (979:21): [True: 0, False: 0]
  ------------------
  980|      0|                    dec_inner(next,
  981|      0|                              pos.shift() - B,
  982|      0|                              last + 1 - ts - pos.size_before(idx));
  983|      0|                dec_leaf(tail, ts);
  984|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  985|      0|            }
  986|  13.7k|        }
  987|  28.7k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    974|    {
 1060|    974|        auto old_tail_size = pos.count();
 1061|    974|        auto new_tail_size = pos.index(last) + 1;
 1062|    974|        auto node          = pos.node();
 1063|    974|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 974, Folded]
  |  Branch (1063:42): [True: 277, False: 697]
  ------------------
 1064|    974|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 234, False: 740]
  ------------------
 1065|    234|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 234]
  ------------------
 1066|      0|                node->inc();
 1067|    234|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    740|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 270, False: 470]
  ------------------
 1069|    270|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    270|                              old_tail_size - new_tail_size);
 1071|    270|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    470|        } else {
 1073|    470|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    470|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 470, Folded]
  ------------------
 1075|    470|                pos.visit(dec_visitor{});
 1076|    470|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    470|        }
 1078|    974|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    955|    {
 1060|    955|        auto old_tail_size = pos.count();
 1061|    955|        auto new_tail_size = pos.index(last) + 1;
 1062|    955|        auto node          = pos.node();
 1063|    955|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 955]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|    955|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 547, False: 408]
  ------------------
 1065|    547|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 547, Folded]
  ------------------
 1066|    547|                node->inc();
 1067|    547|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    547|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 408]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    408|        } else {
 1073|    408|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    408|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 408]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|    408|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    408|        }
 1078|    955|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  17.5k|    {
  914|  17.5k|        auto idx    = pos.index(last);
  915|  17.5k|        auto node   = pos.node();
  916|  17.5k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [Folded, False: 17.5k]
  |  Branch (916:35): [True: 0, False: 0]
  ------------------
  917|  17.5k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [True: 17.5k, Folded]
  |  Branch (917:25): [True: 14.8k, False: 2.75k]
  ------------------
  918|  14.8k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 0, False: 14.8k]
  ------------------
  919|  14.8k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|  14.8k|            if (Mutating)
  ------------------
  |  Branch (920:17): [Folded, False: 14.8k]
  ------------------
  921|      0|                pos.visit(dec_right_visitor{}, count_t{1});
  922|  14.8k|            return res;
  923|  14.8k|        } else {
  924|  2.75k|            using std::get;
  925|  2.75k|            auto subs =
  926|  2.75k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 0, False: 2.75k]
  ------------------
  927|  2.75k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  2.75k|            auto next = get<1>(subs);
  929|  2.75k|            auto ts   = get<2>(subs);
  930|  2.75k|            auto tail = get<3>(subs);
  931|  2.75k|            IMMER_TRY {
  ------------------
  |  |   49|  2.75k|#define IMMER_TRY try
  ------------------
  932|  2.75k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 1.62k, False: 1.12k]
  ------------------
  933|  1.62k|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 0, False: 1.62k]
  ------------------
  934|      0|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|      0|                        pos.each_right(dec_visitor{}, idx + 1);
  936|      0|                        node->inner()[idx] = next;
  937|      0|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|      0|                        nodr->d.count      = idx + 1;
  939|      0|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 0, False: 0]
  ------------------
  940|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|  1.62k|                    } else {
  942|  1.62k|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|  1.62k|                        auto newr = newn->relaxed();
  944|  1.62k|                        newn->inner()[idx] = next;
  945|  1.62k|                        newr->d.sizes[idx] = last + 1 - ts;
  946|  1.62k|                        newr->d.count      = idx + 1;
  947|  1.62k|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 1.62k, False: 0]
  ------------------
  948|  1.62k|                        if (Mutating)
  ------------------
  |  Branch (948:29): [Folded, False: 1.62k]
  ------------------
  949|      0|                            pos.visit(dec_visitor{});
  950|  1.62k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|  1.62k|                    }
  952|  1.62k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 0, False: 1.12k]
  ------------------
  953|      0|                    if (Mutating)
  ------------------
  |  Branch (953:25): [Folded, False: 0]
  ------------------
  954|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  1.12k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [True: 1.12k, Folded]
  |  Branch (956:40): [True: 591, False: 536]
  |  Branch (956:52): [True: 251, False: 340]
  ------------------
  957|    251|                    auto newn = pos.node()->inner()[0];
  958|    251|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 251, False: 0]
  ------------------
  959|    251|                        newn->inc();
  960|    251|                    if (Mutating)
  ------------------
  |  Branch (960:25): [Folded, False: 251]
  ------------------
  961|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|    251|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|    876|                } else {
  964|    876|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 0, False: 876]
  ------------------
  965|      0|                        pos.each_right(dec_visitor{}, idx + 1);
  966|      0|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|    876|                    } else {
  969|    876|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    876|                        if (Mutating)
  ------------------
  |  Branch (970:29): [Folded, False: 876]
  ------------------
  971|      0|                            pos.visit(dec_visitor{});
  972|    876|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    876|                    }
  974|    876|                }
  975|  2.75k|            }
  976|  2.75k|            IMMER_CATCH (...) {
  977|      0|                assert(!mutate);
  ------------------
  |  Branch (977:17): [True: 0, False: 0]
  ------------------
  978|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  ------------------
  979|      0|                if (next)
  ------------------
  |  Branch (979:21): [True: 0, False: 0]
  ------------------
  980|      0|                    dec_inner(next,
  981|      0|                              pos.shift() - B,
  982|      0|                              last + 1 - ts - pos.size_before(idx));
  983|      0|                dec_leaf(tail, ts);
  984|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  985|      0|            }
  986|  2.75k|        }
  987|  17.5k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  1.26k|    {
  992|  1.26k|        auto idx    = pos.index(last);
  993|  1.26k|        auto node   = pos.node();
  994|  1.26k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 1.26k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  1.26k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 1.26k, Folded]
  |  Branch (995:25): [True: 353, False: 909]
  ------------------
  996|    353|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 353]
  ------------------
  997|    353|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|    353|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 353]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|    353|            return res;
 1001|    909|        } else {
 1002|    909|            using std::get;
 1003|    909|            auto subs =
 1004|    909|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 909]
  ------------------
 1005|    909|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|    909|            auto next = get<1>(subs);
 1007|    909|            auto ts   = get<2>(subs);
 1008|    909|            auto tail = get<3>(subs);
 1009|    909|            IMMER_TRY {
  ------------------
  |  |   49|    909|#define IMMER_TRY try
  ------------------
 1010|    909|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 263, False: 646]
  ------------------
 1011|    263|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 263]
  ------------------
 1012|      0|                        node->inner()[idx] = next;
 1013|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    263|                    } else {
 1016|    263|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    263|                        newn->inner()[idx] = next;
 1018|    263|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 263]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    263|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    263|                    }
 1022|    646|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 646]
  ------------------
 1023|      0|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 0]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    646|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 646, Folded]
  |  Branch (1026:40): [True: 395, False: 251]
  |  Branch (1026:52): [True: 199, False: 196]
  ------------------
 1027|    199|                    auto newn = pos.node()->inner()[0];
 1028|    199|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 199, False: 0]
  ------------------
 1029|    199|                        newn->inc();
 1030|    199|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 199]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    199|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    447|                } else {
 1034|    447|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 447]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    447|                    } else {
 1038|    447|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    447|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 447]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    447|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    447|                    }
 1043|    447|                }
 1044|    909|            }
 1045|    909|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|    909|        }
 1055|  1.26k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.44k|    {
 1060|  1.44k|        auto old_tail_size = pos.count();
 1061|  1.44k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.44k|        auto node          = pos.node();
 1063|  1.44k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 1.44k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  1.44k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 400, False: 1.04k]
  ------------------
 1065|    400|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 400, Folded]
  ------------------
 1066|    400|                node->inc();
 1067|    400|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.04k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 1.04k]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.04k|        } else {
 1073|  1.04k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.04k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 1.04k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  1.04k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.04k|        }
 1078|  1.44k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  1.78k|    {
  992|  1.78k|        auto idx    = pos.index(last);
  993|  1.78k|        auto node   = pos.node();
  994|  1.78k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 1.78k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  1.78k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 1.78k, Folded]
  |  Branch (995:25): [True: 802, False: 982]
  ------------------
  996|    802|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 802]
  ------------------
  997|    802|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|    802|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 802]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|    802|            return res;
 1001|    982|        } else {
 1002|    982|            using std::get;
 1003|    982|            auto subs =
 1004|    982|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 982]
  ------------------
 1005|    982|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|    982|            auto next = get<1>(subs);
 1007|    982|            auto ts   = get<2>(subs);
 1008|    982|            auto tail = get<3>(subs);
 1009|    982|            IMMER_TRY {
  ------------------
  |  |   49|    982|#define IMMER_TRY try
  ------------------
 1010|    982|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 281, False: 701]
  ------------------
 1011|    281|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 281]
  ------------------
 1012|      0|                        node->inner()[idx] = next;
 1013|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    281|                    } else {
 1016|    281|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    281|                        newn->inner()[idx] = next;
 1018|    281|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 281]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    281|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    281|                    }
 1022|    701|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 701]
  ------------------
 1023|      0|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 0]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    701|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 701, Folded]
  |  Branch (1026:40): [True: 435, False: 266]
  |  Branch (1026:52): [True: 204, False: 231]
  ------------------
 1027|    204|                    auto newn = pos.node()->inner()[0];
 1028|    204|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 204, False: 0]
  ------------------
 1029|    204|                        newn->inc();
 1030|    204|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 204]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    204|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    497|                } else {
 1034|    497|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 497]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    497|                    } else {
 1038|    497|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    497|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 497]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    497|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    497|                    }
 1043|    497|                }
 1044|    982|            }
 1045|    982|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|    982|        }
 1055|  1.78k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  3.30k|    {
 1060|  3.30k|        auto old_tail_size = pos.count();
 1061|  3.30k|        auto new_tail_size = pos.index(last) + 1;
 1062|  3.30k|        auto node          = pos.node();
 1063|  3.30k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 3.30k, Folded]
  |  Branch (1063:42): [True: 657, False: 2.65k]
  ------------------
 1064|  3.30k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 1.16k, False: 2.14k]
  ------------------
 1065|  1.16k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 1.16k]
  ------------------
 1066|      0|                node->inc();
 1067|  1.16k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  2.14k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 565, False: 1.58k]
  ------------------
 1069|    565|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    565|                              old_tail_size - new_tail_size);
 1071|    565|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.58k|        } else {
 1073|  1.58k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.58k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 1.58k, Folded]
  ------------------
 1075|  1.58k|                pos.visit(dec_visitor{});
 1076|  1.58k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.58k|        }
 1078|  3.30k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  4.00k|    {
  992|  4.00k|        auto idx    = pos.index(last);
  993|  4.00k|        auto node   = pos.node();
  994|  4.00k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 4.00k, Folded]
  |  Branch (994:35): [True: 1.78k, False: 2.21k]
  ------------------
  995|  4.00k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 4.00k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 0, Folded]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  4.00k|        } else {
 1002|  4.00k|            using std::get;
 1003|  4.00k|            auto subs =
 1004|  4.00k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 1.78k, False: 2.21k]
  ------------------
 1005|  4.00k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  4.00k|            auto next = get<1>(subs);
 1007|  4.00k|            auto ts   = get<2>(subs);
 1008|  4.00k|            auto tail = get<3>(subs);
 1009|  4.00k|            IMMER_TRY {
  ------------------
  |  |   49|  4.00k|#define IMMER_TRY try
  ------------------
 1010|  4.00k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 999, False: 3.00k]
  ------------------
 1011|    999|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 471, False: 528]
  ------------------
 1012|    471|                        node->inner()[idx] = next;
 1013|    471|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    471|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    528|                    } else {
 1016|    528|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    528|                        newn->inner()[idx] = next;
 1018|    528|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 528, Folded]
  ------------------
 1019|    528|                            pos.visit(dec_visitor{});
 1020|    528|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    528|                    }
 1022|  3.00k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 1.00k, False: 1.99k]
  ------------------
 1023|  1.00k|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 1.00k, Folded]
  ------------------
 1024|  1.00k|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|  1.00k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.99k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 1.99k]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 0, Folded]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|  1.99k|                } else {
 1034|  1.99k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 891, False: 1.10k]
  ------------------
 1035|    891|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    891|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.10k|                    } else {
 1038|  1.10k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  1.10k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 1.10k, Folded]
  ------------------
 1040|  1.10k|                            pos.visit(dec_visitor{});
 1041|  1.10k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  1.10k|                    }
 1043|  1.99k|                }
 1044|  4.00k|            }
 1045|  4.00k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  4.00k|        }
 1055|  4.00k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  3.05k|    {
  879|  3.05k|        using node_t = node_type<Pos>;
  880|  3.05k|        auto node    = p.node();
  881|  3.05k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 1.65k, False: 1.40k]
  ------------------
  882|  1.65k|            p.each_right(dec_t{}, idx);
  883|  1.65k|            node_t::delete_inner(node, p.count());
  884|  1.65k|        }
  885|  3.05k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  10.1k|    {
 1060|  10.1k|        auto old_tail_size = pos.count();
 1061|  10.1k|        auto new_tail_size = pos.index(last) + 1;
 1062|  10.1k|        auto node          = pos.node();
 1063|  10.1k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 10.1k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  10.1k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 1.36k, False: 8.83k]
  ------------------
 1065|  1.36k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 1.36k, Folded]
  ------------------
 1066|  1.36k|                node->inc();
 1067|  1.36k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  8.83k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 8.83k]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  8.83k|        } else {
 1073|  8.83k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  8.83k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 8.83k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  8.83k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  8.83k|        }
 1078|  10.1k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  6.06k|    {
  992|  6.06k|        auto idx    = pos.index(last);
  993|  6.06k|        auto node   = pos.node();
  994|  6.06k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 6.06k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  6.06k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 6.06k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 0]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  6.06k|        } else {
 1002|  6.06k|            using std::get;
 1003|  6.06k|            auto subs =
 1004|  6.06k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 6.06k]
  ------------------
 1005|  6.06k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  6.06k|            auto next = get<1>(subs);
 1007|  6.06k|            auto ts   = get<2>(subs);
 1008|  6.06k|            auto tail = get<3>(subs);
 1009|  6.06k|            IMMER_TRY {
  ------------------
  |  |   49|  6.06k|#define IMMER_TRY try
  ------------------
 1010|  6.06k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 814, False: 5.24k]
  ------------------
 1011|    814|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 814]
  ------------------
 1012|      0|                        node->inner()[idx] = next;
 1013|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    814|                    } else {
 1016|    814|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    814|                        newn->inner()[idx] = next;
 1018|    814|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 814]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    814|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    814|                    }
 1022|  5.24k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 1.24k, False: 4.00k]
  ------------------
 1023|  1.24k|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 1.24k]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|  1.24k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  4.00k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 4.00k]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 0]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|  4.00k|                } else {
 1034|  4.00k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 4.00k]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  4.00k|                    } else {
 1038|  4.00k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  4.00k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 4.00k]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|  4.00k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  4.00k|                    }
 1043|  4.00k|                }
 1044|  6.06k|            }
 1045|  6.06k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  6.06k|        }
 1055|  6.06k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    406|    {
 1060|    406|        auto old_tail_size = pos.count();
 1061|    406|        auto new_tail_size = pos.index(last) + 1;
 1062|    406|        auto node          = pos.node();
 1063|    406|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 406]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|    406|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 196, False: 210]
  ------------------
 1065|    196|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 196, Folded]
  ------------------
 1066|    196|                node->inc();
 1067|    196|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    210|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 210]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    210|        } else {
 1073|    210|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    210|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 210]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|    210|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    210|        }
 1078|    406|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.54k|    {
 1060|  1.54k|        auto old_tail_size = pos.count();
 1061|  1.54k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.54k|        auto node          = pos.node();
 1063|  1.54k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 1.54k, Folded]
  |  Branch (1063:42): [True: 209, False: 1.34k]
  ------------------
 1064|  1.54k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 326, False: 1.22k]
  ------------------
 1065|    326|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 326]
  ------------------
 1066|      0|                node->inc();
 1067|    326|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.22k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 207, False: 1.01k]
  ------------------
 1069|    207|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    207|                              old_tail_size - new_tail_size);
 1071|    207|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.01k|        } else {
 1073|  1.01k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.01k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 1.01k, Folded]
  ------------------
 1075|  1.01k|                pos.visit(dec_visitor{});
 1076|  1.01k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.01k|        }
 1078|  1.54k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  4.27k|    {
  992|  4.27k|        auto idx    = pos.index(last);
  993|  4.27k|        auto node   = pos.node();
  994|  4.27k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 4.27k, Folded]
  |  Branch (994:35): [True: 3.14k, False: 1.12k]
  ------------------
  995|  4.27k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 4.27k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 0, Folded]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  4.27k|        } else {
 1002|  4.27k|            using std::get;
 1003|  4.27k|            auto subs =
 1004|  4.27k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 3.14k, False: 1.12k]
  ------------------
 1005|  4.27k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  4.27k|            auto next = get<1>(subs);
 1007|  4.27k|            auto ts   = get<2>(subs);
 1008|  4.27k|            auto tail = get<3>(subs);
 1009|  4.27k|            IMMER_TRY {
  ------------------
  |  |   49|  4.27k|#define IMMER_TRY try
  ------------------
 1010|  4.27k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 1.81k, False: 2.45k]
  ------------------
 1011|  1.81k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 1.30k, False: 519]
  ------------------
 1012|  1.30k|                        node->inner()[idx] = next;
 1013|  1.30k|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|  1.30k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|  1.30k|                    } else {
 1016|    519|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    519|                        newn->inner()[idx] = next;
 1018|    519|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 519, Folded]
  ------------------
 1019|    519|                            pos.visit(dec_visitor{});
 1020|    519|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    519|                    }
 1022|  2.45k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 1.58k, False: 875]
  ------------------
 1023|  1.58k|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 1.58k, Folded]
  ------------------
 1024|  1.58k|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|  1.58k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.58k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 875]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 0, Folded]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    875|                } else {
 1034|    875|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 495, False: 380]
  ------------------
 1035|    495|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    495|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    495|                    } else {
 1038|    380|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    380|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 380, Folded]
  ------------------
 1040|    380|                            pos.visit(dec_visitor{});
 1041|    380|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    380|                    }
 1043|    875|                }
 1044|  4.27k|            }
 1045|  4.27k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  4.27k|        }
 1055|  4.27k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  1.58k|    {
  879|  1.58k|        using node_t = node_type<Pos>;
  880|  1.58k|        auto node    = p.node();
  881|  1.58k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 1.35k, False: 228]
  ------------------
  882|  1.35k|            p.each_right(dec_t{}, idx);
  883|  1.35k|            node_t::delete_inner(node, p.count());
  884|  1.35k|        }
  885|  1.58k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  2.36k|    {
 1060|  2.36k|        auto old_tail_size = pos.count();
 1061|  2.36k|        auto new_tail_size = pos.index(last) + 1;
 1062|  2.36k|        auto node          = pos.node();
 1063|  2.36k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 2.36k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  2.36k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 310, False: 2.05k]
  ------------------
 1065|    310|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 310, Folded]
  ------------------
 1066|    310|                node->inc();
 1067|    310|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  2.05k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 2.05k]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  2.05k|        } else {
 1073|  2.05k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  2.05k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 2.05k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  2.05k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  2.05k|        }
 1078|  2.36k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.19k|    {
  992|  3.19k|        auto idx    = pos.index(last);
  993|  3.19k|        auto node   = pos.node();
  994|  3.19k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 3.19k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  3.19k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 3.19k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 0]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  3.19k|        } else {
 1002|  3.19k|            using std::get;
 1003|  3.19k|            auto subs =
 1004|  3.19k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 3.19k]
  ------------------
 1005|  3.19k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  3.19k|            auto next = get<1>(subs);
 1007|  3.19k|            auto ts   = get<2>(subs);
 1008|  3.19k|            auto tail = get<3>(subs);
 1009|  3.19k|            IMMER_TRY {
  ------------------
  |  |   49|  3.19k|#define IMMER_TRY try
  ------------------
 1010|  3.19k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 962, False: 2.23k]
  ------------------
 1011|    962|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 962]
  ------------------
 1012|      0|                        node->inner()[idx] = next;
 1013|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    962|                    } else {
 1016|    962|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    962|                        newn->inner()[idx] = next;
 1018|    962|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 962]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    962|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    962|                    }
 1022|  2.23k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 819, False: 1.41k]
  ------------------
 1023|    819|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 819]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    819|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.41k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 1.41k]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 0]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|  1.41k|                } else {
 1034|  1.41k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 1.41k]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.41k|                    } else {
 1038|  1.41k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  1.41k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 1.41k]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|  1.41k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  1.41k|                    }
 1043|  1.41k|                }
 1044|  3.19k|            }
 1045|  3.19k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  3.19k|        }
 1055|  3.19k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
  867|  19.1k|    {
  868|  19.1k|        using node_t = node_type<Pos>;
  869|  19.1k|        auto node    = p.node();
  870|  19.1k|        if (node->dec()) {
  ------------------
  |  Branch (870:13): [True: 12.6k, False: 6.47k]
  ------------------
  871|  12.6k|            p.each_right(dec_t{}, idx);
  872|  12.6k|            node_t::delete_inner_r(node, p.count());
  873|  12.6k|        }
  874|  19.1k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  2.60k|    {
 1060|  2.60k|        auto old_tail_size = pos.count();
 1061|  2.60k|        auto new_tail_size = pos.index(last) + 1;
 1062|  2.60k|        auto node          = pos.node();
 1063|  2.60k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 2.60k, Folded]
  |  Branch (1063:42): [True: 398, False: 2.20k]
  ------------------
 1064|  2.60k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 718, False: 1.88k]
  ------------------
 1065|    718|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 718]
  ------------------
 1066|      0|                node->inc();
 1067|    718|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.88k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 352, False: 1.53k]
  ------------------
 1069|    352|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    352|                              old_tail_size - new_tail_size);
 1071|    352|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.53k|        } else {
 1073|  1.53k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.53k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 1.53k, Folded]
  ------------------
 1075|  1.53k|                pos.visit(dec_visitor{});
 1076|  1.53k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.53k|        }
 1078|  2.60k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  4.29k|    {
  914|  4.29k|        auto idx    = pos.index(last);
  915|  4.29k|        auto node   = pos.node();
  916|  4.29k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [True: 4.29k, Folded]
  |  Branch (916:35): [True: 2.61k, False: 1.67k]
  ------------------
  917|  4.29k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [Folded, False: 4.29k]
  |  Branch (917:25): [True: 0, False: 0]
  ------------------
  918|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 0, False: 0]
  ------------------
  919|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|      0|            if (Mutating)
  ------------------
  |  Branch (920:17): [True: 0, Folded]
  ------------------
  921|      0|                pos.visit(dec_right_visitor{}, count_t{1});
  922|      0|            return res;
  923|  4.29k|        } else {
  924|  4.29k|            using std::get;
  925|  4.29k|            auto subs =
  926|  4.29k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 2.61k, False: 1.67k]
  ------------------
  927|  4.29k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  4.29k|            auto next = get<1>(subs);
  929|  4.29k|            auto ts   = get<2>(subs);
  930|  4.29k|            auto tail = get<3>(subs);
  931|  4.29k|            IMMER_TRY {
  ------------------
  |  |   49|  4.29k|#define IMMER_TRY try
  ------------------
  932|  4.29k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 1.30k, False: 2.98k]
  ------------------
  933|  1.30k|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 1.02k, False: 278]
  ------------------
  934|  1.02k|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|  1.02k|                        pos.each_right(dec_visitor{}, idx + 1);
  936|  1.02k|                        node->inner()[idx] = next;
  937|  1.02k|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|  1.02k|                        nodr->d.count      = idx + 1;
  939|  1.02k|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 1.02k, False: 0]
  ------------------
  940|  1.02k|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|  1.02k|                    } else {
  942|    278|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|    278|                        auto newr = newn->relaxed();
  944|    278|                        newn->inner()[idx] = next;
  945|    278|                        newr->d.sizes[idx] = last + 1 - ts;
  946|    278|                        newr->d.count      = idx + 1;
  947|    278|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 278, False: 0]
  ------------------
  948|    278|                        if (Mutating)
  ------------------
  |  Branch (948:29): [True: 278, Folded]
  ------------------
  949|    278|                            pos.visit(dec_visitor{});
  950|    278|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|    278|                    }
  952|  2.98k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 1.29k, False: 1.69k]
  ------------------
  953|  1.29k|                    if (Mutating)
  ------------------
  |  Branch (953:25): [True: 1.29k, Folded]
  ------------------
  954|  1.29k|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|  1.29k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  1.69k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [Folded, False: 1.69k]
  |  Branch (956:40): [True: 0, False: 0]
  |  Branch (956:52): [True: 0, False: 0]
  ------------------
  957|      0|                    auto newn = pos.node()->inner()[0];
  958|      0|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 0, False: 0]
  ------------------
  959|      0|                        newn->inc();
  960|      0|                    if (Mutating)
  ------------------
  |  Branch (960:25): [True: 0, Folded]
  ------------------
  961|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|  1.69k|                } else {
  964|  1.69k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 989, False: 706]
  ------------------
  965|    989|                        pos.each_right(dec_visitor{}, idx + 1);
  966|    989|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|    989|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|    989|                    } else {
  969|    706|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    706|                        if (Mutating)
  ------------------
  |  Branch (970:29): [True: 706, Folded]
  ------------------
  971|    706|                            pos.visit(dec_visitor{});
  972|    706|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    706|                    }
  974|  1.69k|                }
  975|  4.29k|            }
  976|  4.29k|            IMMER_CATCH (...) {
  977|      0|                assert(!mutate);
  ------------------
  |  Branch (977:17): [True: 0, False: 0]
  ------------------
  978|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  ------------------
  979|      0|                if (next)
  ------------------
  |  Branch (979:21): [True: 0, False: 0]
  ------------------
  980|      0|                    dec_inner(next,
  981|      0|                              pos.shift() - B,
  982|      0|                              last + 1 - ts - pos.size_before(idx));
  983|      0|                dec_leaf(tail, ts);
  984|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  985|      0|            }
  986|  4.29k|        }
  987|  4.29k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  5.47k|    {
  992|  5.47k|        auto idx    = pos.index(last);
  993|  5.47k|        auto node   = pos.node();
  994|  5.47k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 5.47k, Folded]
  |  Branch (994:35): [True: 4.05k, False: 1.42k]
  ------------------
  995|  5.47k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 5.47k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 0, Folded]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  5.47k|        } else {
 1002|  5.47k|            using std::get;
 1003|  5.47k|            auto subs =
 1004|  5.47k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 4.05k, False: 1.42k]
  ------------------
 1005|  5.47k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  5.47k|            auto next = get<1>(subs);
 1007|  5.47k|            auto ts   = get<2>(subs);
 1008|  5.47k|            auto tail = get<3>(subs);
 1009|  5.47k|            IMMER_TRY {
  ------------------
  |  |   49|  5.47k|#define IMMER_TRY try
  ------------------
 1010|  5.47k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 3.92k, False: 1.55k]
  ------------------
 1011|  3.92k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 3.08k, False: 842]
  ------------------
 1012|  3.08k|                        node->inner()[idx] = next;
 1013|  3.08k|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|  3.08k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|  3.08k|                    } else {
 1016|    842|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    842|                        newn->inner()[idx] = next;
 1018|    842|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 842, Folded]
  ------------------
 1019|    842|                            pos.visit(dec_visitor{});
 1020|    842|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    842|                    }
 1022|  3.92k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 961, False: 593]
  ------------------
 1023|    961|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 961, Folded]
  ------------------
 1024|    961|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    961|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    961|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 593]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 0, Folded]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    593|                } else {
 1034|    593|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 261, False: 332]
  ------------------
 1035|    261|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    261|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    332|                    } else {
 1038|    332|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    332|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 332, Folded]
  ------------------
 1040|    332|                            pos.visit(dec_visitor{});
 1041|    332|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    332|                    }
 1043|    593|                }
 1044|  5.47k|            }
 1045|  5.47k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  5.47k|        }
 1055|  5.47k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  9.85k|    {
  879|  9.85k|        using node_t = node_type<Pos>;
  880|  9.85k|        auto node    = p.node();
  881|  9.85k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 6.80k, False: 3.05k]
  ------------------
  882|  6.80k|            p.each_right(dec_t{}, idx);
  883|  6.80k|            node_t::delete_inner(node, p.count());
  884|  6.80k|        }
  885|  9.85k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  5.40k|    {
 1060|  5.40k|        auto old_tail_size = pos.count();
 1061|  5.40k|        auto new_tail_size = pos.index(last) + 1;
 1062|  5.40k|        auto node          = pos.node();
 1063|  5.40k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 5.40k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  5.40k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 1.10k, False: 4.30k]
  ------------------
 1065|  1.10k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 1.10k, Folded]
  ------------------
 1066|  1.10k|                node->inc();
 1067|  1.10k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  4.30k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 4.30k]
  ------------------
 1069|      0|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|      0|                              old_tail_size - new_tail_size);
 1071|      0|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  4.30k|        } else {
 1073|  4.30k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  4.30k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 4.30k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  4.30k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  4.30k|        }
 1078|  5.40k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  4.34k|    {
  914|  4.34k|        auto idx    = pos.index(last);
  915|  4.34k|        auto node   = pos.node();
  916|  4.34k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [Folded, False: 4.34k]
  |  Branch (916:35): [True: 0, False: 0]
  ------------------
  917|  4.34k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [Folded, False: 4.34k]
  |  Branch (917:25): [True: 0, False: 0]
  ------------------
  918|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 0, False: 0]
  ------------------
  919|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|      0|            if (Mutating)
  ------------------
  |  Branch (920:17): [Folded, False: 0]
  ------------------
  921|      0|                pos.visit(dec_right_visitor{}, count_t{1});
  922|      0|            return res;
  923|  4.34k|        } else {
  924|  4.34k|            using std::get;
  925|  4.34k|            auto subs =
  926|  4.34k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 0, False: 4.34k]
  ------------------
  927|  4.34k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  4.34k|            auto next = get<1>(subs);
  929|  4.34k|            auto ts   = get<2>(subs);
  930|  4.34k|            auto tail = get<3>(subs);
  931|  4.34k|            IMMER_TRY {
  ------------------
  |  |   49|  4.34k|#define IMMER_TRY try
  ------------------
  932|  4.34k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 967, False: 3.37k]
  ------------------
  933|    967|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 0, False: 967]
  ------------------
  934|      0|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|      0|                        pos.each_right(dec_visitor{}, idx + 1);
  936|      0|                        node->inner()[idx] = next;
  937|      0|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|      0|                        nodr->d.count      = idx + 1;
  939|      0|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 0, False: 0]
  ------------------
  940|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|    967|                    } else {
  942|    967|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|    967|                        auto newr = newn->relaxed();
  944|    967|                        newn->inner()[idx] = next;
  945|    967|                        newr->d.sizes[idx] = last + 1 - ts;
  946|    967|                        newr->d.count      = idx + 1;
  947|    967|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 967, False: 0]
  ------------------
  948|    967|                        if (Mutating)
  ------------------
  |  Branch (948:29): [Folded, False: 967]
  ------------------
  949|      0|                            pos.visit(dec_visitor{});
  950|    967|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|    967|                    }
  952|  3.37k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 1.18k, False: 2.19k]
  ------------------
  953|  1.18k|                    if (Mutating)
  ------------------
  |  Branch (953:25): [Folded, False: 1.18k]
  ------------------
  954|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|  1.18k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  2.19k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [Folded, False: 2.19k]
  |  Branch (956:40): [True: 0, False: 0]
  |  Branch (956:52): [True: 0, False: 0]
  ------------------
  957|      0|                    auto newn = pos.node()->inner()[0];
  958|      0|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 0, False: 0]
  ------------------
  959|      0|                        newn->inc();
  960|      0|                    if (Mutating)
  ------------------
  |  Branch (960:25): [Folded, False: 0]
  ------------------
  961|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|  2.19k|                } else {
  964|  2.19k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 0, False: 2.19k]
  ------------------
  965|      0|                        pos.each_right(dec_visitor{}, idx + 1);
  966|      0|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|  2.19k|                    } else {
  969|  2.19k|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|  2.19k|                        if (Mutating)
  ------------------
  |  Branch (970:29): [Folded, False: 2.19k]
  ------------------
  971|      0|                            pos.visit(dec_visitor{});
  972|  2.19k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|  2.19k|                    }
  974|  2.19k|                }
  975|  4.34k|            }
  976|  4.34k|            IMMER_CATCH (...) {
  977|      0|                assert(!mutate);
  ------------------
  |  Branch (977:17): [True: 0, False: 0]
  ------------------
  978|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  |  Branch (978:17): [True: 0, False: 0]
  ------------------
  979|      0|                if (next)
  ------------------
  |  Branch (979:21): [True: 0, False: 0]
  ------------------
  980|      0|                    dec_inner(next,
  981|      0|                              pos.shift() - B,
  982|      0|                              last + 1 - ts - pos.size_before(idx));
  983|      0|                dec_leaf(tail, ts);
  984|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  985|      0|            }
  986|  4.34k|        }
  987|  4.34k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  2.98k|    {
  992|  2.98k|        auto idx    = pos.index(last);
  993|  2.98k|        auto node   = pos.node();
  994|  2.98k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 2.98k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  2.98k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 2.98k]
  |  Branch (995:25): [True: 0, False: 0]
  ------------------
  996|      0|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 0]
  ------------------
  997|      0|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|      0|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 0]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|      0|            return res;
 1001|  2.98k|        } else {
 1002|  2.98k|            using std::get;
 1003|  2.98k|            auto subs =
 1004|  2.98k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 2.98k]
  ------------------
 1005|  2.98k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  2.98k|            auto next = get<1>(subs);
 1007|  2.98k|            auto ts   = get<2>(subs);
 1008|  2.98k|            auto tail = get<3>(subs);
 1009|  2.98k|            IMMER_TRY {
  ------------------
  |  |   49|  2.98k|#define IMMER_TRY try
  ------------------
 1010|  2.98k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 2.14k, False: 839]
  ------------------
 1011|  2.14k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 2.14k]
  ------------------
 1012|      0|                        node->inner()[idx] = next;
 1013|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|  2.14k|                    } else {
 1016|  2.14k|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|  2.14k|                        newn->inner()[idx] = next;
 1018|  2.14k|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 2.14k]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|  2.14k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|  2.14k|                    }
 1022|  2.14k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 481, False: 358]
  ------------------
 1023|    481|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 481]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    481|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    481|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 358]
  |  Branch (1026:40): [True: 0, False: 0]
  |  Branch (1026:52): [True: 0, False: 0]
  ------------------
 1027|      0|                    auto newn = pos.node()->inner()[0];
 1028|      0|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 0, False: 0]
  ------------------
 1029|      0|                        newn->inc();
 1030|      0|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 0]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|      0|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    358|                } else {
 1034|    358|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 358]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    358|                    } else {
 1038|    358|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    358|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 358]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    358|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    358|                    }
 1043|    358|                }
 1044|  2.98k|            }
 1045|  2.98k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  2.98k|        }
 1055|  2.98k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  11.8k|    {
  992|  11.8k|        auto idx    = pos.index(last);
  993|  11.8k|        auto node   = pos.node();
  994|  11.8k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 11.8k, Folded]
  |  Branch (994:35): [True: 7.94k, False: 3.92k]
  ------------------
  995|  11.8k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 11.8k, Folded]
  |  Branch (995:25): [True: 6.66k, False: 5.19k]
  ------------------
  996|  6.66k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 4.63k, False: 2.03k]
  ------------------
  997|  6.66k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|  6.66k|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 6.66k, Folded]
  ------------------
  999|  6.66k|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|  6.66k|            return res;
 1001|  6.66k|        } else {
 1002|  5.19k|            using std::get;
 1003|  5.19k|            auto subs =
 1004|  5.19k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 3.30k, False: 1.88k]
  ------------------
 1005|  5.19k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  5.19k|            auto next = get<1>(subs);
 1007|  5.19k|            auto ts   = get<2>(subs);
 1008|  5.19k|            auto tail = get<3>(subs);
 1009|  5.19k|            IMMER_TRY {
  ------------------
  |  |   49|  5.19k|#define IMMER_TRY try
  ------------------
 1010|  5.19k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 1.16k, False: 4.02k]
  ------------------
 1011|  1.16k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 627, False: 535]
  ------------------
 1012|    627|                        node->inner()[idx] = next;
 1013|    627|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    627|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    627|                    } else {
 1016|    535|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    535|                        newn->inner()[idx] = next;
 1018|    535|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 535, Folded]
  ------------------
 1019|    535|                            pos.visit(dec_visitor{});
 1020|    535|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    535|                    }
 1022|  4.02k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 4.02k]
  ------------------
 1023|      0|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 0, Folded]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  4.02k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 4.02k, Folded]
  |  Branch (1026:40): [True: 3.65k, False: 375]
  |  Branch (1026:52): [True: 2.22k, False: 1.42k]
  ------------------
 1027|  2.22k|                    auto newn = pos.node()->inner()[0];
 1028|  2.22k|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 771, False: 1.45k]
  ------------------
 1029|    771|                        newn->inc();
 1030|  2.22k|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 2.22k, Folded]
  ------------------
 1031|  2.22k|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|  2.22k|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|  2.22k|                } else {
 1034|  1.80k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 1.22k, False: 581]
  ------------------
 1035|  1.22k|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|  1.22k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.22k|                    } else {
 1038|    581|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    581|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 581, Folded]
  ------------------
 1040|    581|                            pos.visit(dec_visitor{});
 1041|    581|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    581|                    }
 1043|  1.80k|                }
 1044|  5.19k|            }
 1045|  5.19k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  5.19k|        }
 1055|  11.8k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.61k|    {
 1060|  1.61k|        auto old_tail_size = pos.count();
 1061|  1.61k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.61k|        auto node          = pos.node();
 1063|  1.61k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 1.61k, Folded]
  |  Branch (1063:42): [True: 567, False: 1.05k]
  ------------------
 1064|  1.61k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 396, False: 1.22k]
  ------------------
 1065|    396|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 396]
  ------------------
 1066|      0|                node->inc();
 1067|    396|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.22k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 566, False: 655]
  ------------------
 1069|    566|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    566|                              old_tail_size - new_tail_size);
 1071|    566|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    655|        } else {
 1073|    655|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    655|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 655, Folded]
  ------------------
 1075|    655|                pos.visit(dec_visitor{});
 1076|    655|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    655|        }
 1078|  1.61k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.27k|    {
  992|  3.27k|        auto idx    = pos.index(last);
  993|  3.27k|        auto node   = pos.node();
  994|  3.27k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 3.27k, Folded]
  |  Branch (994:35): [True: 1.80k, False: 1.47k]
  ------------------
  995|  3.27k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 3.27k, Folded]
  |  Branch (995:25): [True: 1.40k, False: 1.87k]
  ------------------
  996|  1.40k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 956, False: 444]
  ------------------
  997|  1.40k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|  1.40k|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 1.40k, Folded]
  ------------------
  999|  1.40k|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|  1.40k|            return res;
 1001|  1.87k|        } else {
 1002|  1.87k|            using std::get;
 1003|  1.87k|            auto subs =
 1004|  1.87k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 844, False: 1.02k]
  ------------------
 1005|  1.87k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  1.87k|            auto next = get<1>(subs);
 1007|  1.87k|            auto ts   = get<2>(subs);
 1008|  1.87k|            auto tail = get<3>(subs);
 1009|  1.87k|            IMMER_TRY {
  ------------------
  |  |   49|  1.87k|#define IMMER_TRY try
  ------------------
 1010|  1.87k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 507, False: 1.36k]
  ------------------
 1011|    507|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 212, False: 295]
  ------------------
 1012|    212|                        node->inner()[idx] = next;
 1013|    212|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    212|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    295|                    } else {
 1016|    295|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    295|                        newn->inner()[idx] = next;
 1018|    295|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 295, Folded]
  ------------------
 1019|    295|                            pos.visit(dec_visitor{});
 1020|    295|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    295|                    }
 1022|  1.36k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 1.36k]
  ------------------
 1023|      0|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 0, Folded]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.36k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 1.36k, Folded]
  |  Branch (1026:40): [True: 1.05k, False: 310]
  |  Branch (1026:52): [True: 650, False: 403]
  ------------------
 1027|    650|                    auto newn = pos.node()->inner()[0];
 1028|    650|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 377, False: 273]
  ------------------
 1029|    377|                        newn->inc();
 1030|    650|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 650, Folded]
  ------------------
 1031|    650|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    650|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    713|                } else {
 1034|    713|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 359, False: 354]
  ------------------
 1035|    359|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    359|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    359|                    } else {
 1038|    354|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    354|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 354, Folded]
  ------------------
 1040|    354|                            pos.visit(dec_visitor{});
 1041|    354|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    354|                    }
 1043|    713|                }
 1044|  1.87k|            }
 1045|  1.87k|            IMMER_CATCH (...) {
 1046|      0|                assert(!mutate);
  ------------------
  |  Branch (1046:17): [True: 0, False: 0]
  ------------------
 1047|      0|                assert(!next || pos.shift() > BL);
  ------------------
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  |  Branch (1047:17): [True: 0, False: 0]
  ------------------
 1048|      0|                assert(tail);
  ------------------
  |  Branch (1048:17): [True: 0, False: 0]
  ------------------
 1049|      0|                if (next)
  ------------------
  |  Branch (1049:21): [True: 0, False: 0]
  ------------------
 1050|      0|                    dec_regular(next, pos.shift() - B, last + 1 - ts);
 1051|      0|                dec_leaf(tail, ts);
 1052|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1053|      0|            }
 1054|  1.87k|        }
 1055|  3.27k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    705|    {
 1060|    705|        auto old_tail_size = pos.count();
 1061|    705|        auto new_tail_size = pos.index(last) + 1;
 1062|    705|        auto node          = pos.node();
 1063|    705|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 705, Folded]
  |  Branch (1063:42): [True: 266, False: 439]
  ------------------
 1064|    705|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 238, False: 467]
  ------------------
 1065|    238|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 238]
  ------------------
 1066|      0|                node->inc();
 1067|    238|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    467|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 197, False: 270]
  ------------------
 1069|    197|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    197|                              old_tail_size - new_tail_size);
 1071|    197|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    270|        } else {
 1073|    270|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    270|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 270, Folded]
  ------------------
 1075|    270|                pos.visit(dec_visitor{});
 1076|    270|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    270|        }
 1078|    705|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|    998|    {
 1378|    998|        auto node   = pos.node();
 1379|    998|        auto idx    = pos.index(first);
 1380|    998|        auto count  = pos.count();
 1381|    998|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [True: 0, Folded]
  ------------------
 1382|      0|                      std::is_nothrow_move_constructible<value_t>::value &&
  ------------------
  |  Branch (1382:23): [True: 0, Folded]
  ------------------
 1383|    998|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 734, False: 264]
  ------------------
 1384|    998|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 734, False: 264]
  ------------------
 1385|    734|            auto data     = node->leaf();
 1386|    734|            auto newcount = count - idx;
 1387|    734|            std::move(data + idx, data + count, data);
 1388|    734|            detail::destroy_n(data + newcount, idx);
 1389|    734|            return std::make_tuple(0, node);
 1390|    734|        } else {
 1391|    264|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|    264|            if (Mutating)
  ------------------
  |  Branch (1392:17): [True: 264, Folded]
  ------------------
 1393|    264|                pos.visit(dec_visitor{});
 1394|    264|            return std::make_tuple(0, newn);
 1395|    264|        }
 1396|    998|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  65.4k|    {
 1247|  65.4k|        auto idx                = pos.subindex(first);
 1248|  65.4k|        auto count              = pos.count();
 1249|  65.4k|        auto node               = pos.node();
 1250|  65.4k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [True: 65.4k, Folded]
  |  Branch (1250:47): [True: 51.2k, False: 14.2k]
  ------------------
 1251|  65.4k|        auto left_size          = pos.size_before(idx);
 1252|  65.4k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  65.4k|        auto dropped_size       = first;
 1254|  65.4k|        auto child_dropped_size = dropped_size - left_size;
 1255|  65.4k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [True: 65.4k, Folded]
  |  Branch (1255:25): [True: 63.6k, False: 1.79k]
  |  Branch (1255:45): [True: 4.72k, False: 58.9k]
  ------------------
 1256|  4.72k|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 1.87k, False: 2.85k]
  ------------------
 1257|  4.72k|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|  4.72k|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 1.87k, False: 2.85k]
  ------------------
 1259|  1.87k|                pos.visit(dec_left_visitor{}, idx);
 1260|  2.85k|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [True: 2.85k, Folded]
  ------------------
 1261|  2.85k|                pos.visit(dec_visitor{});
 1262|  4.72k|            return r;
 1263|  60.7k|        } else {
 1264|  60.7k|            using std::get;
 1265|  60.7k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 49.3k, False: 11.4k]
  ------------------
 1266|  60.7k|                                   : node_t::make_inner_r_e(e);
 1267|  60.7k|            auto newr     = newn->relaxed();
 1268|  60.7k|            auto newcount = count - idx;
 1269|  60.7k|            auto new_child_size = child_size - child_dropped_size;
 1270|  60.7k|            IMMER_TRY {
  ------------------
  |  |   49|  60.7k|#define IMMER_TRY try
  ------------------
 1271|  60.7k|                auto subs =
 1272|  60.7k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 49.3k, False: 11.4k]
  ------------------
 1273|  60.7k|                           : pos.towards_sub_oh(
 1274|  11.4k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  60.7k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 49.3k, False: 11.4k]
  ------------------
 1276|  49.3k|                    pos.each_left(dec_visitor{}, idx);
 1277|  60.7k|                pos.copy_sizes(
 1278|  60.7k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  60.7k|                std::copy(node->inner() + idx + 1,
 1280|  60.7k|                          node->inner() + count,
 1281|  60.7k|                          newn->inner() + 1);
 1282|  60.7k|                newn->inner()[0] = get<1>(subs);
 1283|  60.7k|                newr->d.sizes[0] = new_child_size;
 1284|  60.7k|                newr->d.count    = newcount;
 1285|  60.7k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 60.7k, False: 0]
  ------------------
 1286|  60.7k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 11.4k, False: 49.3k]
  ------------------
 1287|  11.4k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  11.4k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [True: 11.4k, Folded]
  ------------------
 1289|  11.4k|                        pos.visit(dec_visitor{});
 1290|  11.4k|                }
 1291|  60.7k|                return std::make_tuple(pos.shift(), newn);
 1292|  60.7k|            }
 1293|  60.7k|            IMMER_CATCH (...) {
 1294|      0|                if (!mutate)
  ------------------
  |  Branch (1294:21): [True: 0, False: 0]
  ------------------
 1295|      0|                    node_t::delete_inner_r_e(newn);
 1296|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1297|      0|            }
 1298|  60.7k|        }
 1299|  65.4k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  2.29k|    {
 1247|  2.29k|        auto idx                = pos.subindex(first);
 1248|  2.29k|        auto count              = pos.count();
 1249|  2.29k|        auto node               = pos.node();
 1250|  2.29k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [Folded, False: 2.29k]
  |  Branch (1250:47): [True: 0, False: 0]
  ------------------
 1251|  2.29k|        auto left_size          = pos.size_before(idx);
 1252|  2.29k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  2.29k|        auto dropped_size       = first;
 1254|  2.29k|        auto child_dropped_size = dropped_size - left_size;
 1255|  2.29k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [True: 2.29k, Folded]
  |  Branch (1255:25): [True: 1.06k, False: 1.23k]
  |  Branch (1255:45): [True: 646, False: 418]
  ------------------
 1256|    646|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 0, False: 646]
  ------------------
 1257|    646|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|    646|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 0, False: 646]
  ------------------
 1259|      0|                pos.visit(dec_left_visitor{}, idx);
 1260|    646|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [Folded, False: 646]
  ------------------
 1261|      0|                pos.visit(dec_visitor{});
 1262|    646|            return r;
 1263|  1.65k|        } else {
 1264|  1.65k|            using std::get;
 1265|  1.65k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 0, False: 1.65k]
  ------------------
 1266|  1.65k|                                   : node_t::make_inner_r_e(e);
 1267|  1.65k|            auto newr     = newn->relaxed();
 1268|  1.65k|            auto newcount = count - idx;
 1269|  1.65k|            auto new_child_size = child_size - child_dropped_size;
 1270|  1.65k|            IMMER_TRY {
  ------------------
  |  |   49|  1.65k|#define IMMER_TRY try
  ------------------
 1271|  1.65k|                auto subs =
 1272|  1.65k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 0, False: 1.65k]
  ------------------
 1273|  1.65k|                           : pos.towards_sub_oh(
 1274|  1.65k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  1.65k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 0, False: 1.65k]
  ------------------
 1276|      0|                    pos.each_left(dec_visitor{}, idx);
 1277|  1.65k|                pos.copy_sizes(
 1278|  1.65k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  1.65k|                std::copy(node->inner() + idx + 1,
 1280|  1.65k|                          node->inner() + count,
 1281|  1.65k|                          newn->inner() + 1);
 1282|  1.65k|                newn->inner()[0] = get<1>(subs);
 1283|  1.65k|                newr->d.sizes[0] = new_child_size;
 1284|  1.65k|                newr->d.count    = newcount;
 1285|  1.65k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 1.65k, False: 0]
  ------------------
 1286|  1.65k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 1.65k, False: 0]
  ------------------
 1287|  1.65k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  1.65k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [Folded, False: 1.65k]
  ------------------
 1289|      0|                        pos.visit(dec_visitor{});
 1290|  1.65k|                }
 1291|  1.65k|                return std::make_tuple(pos.shift(), newn);
 1292|  1.65k|            }
 1293|  1.65k|            IMMER_CATCH (...) {
 1294|      0|                if (!mutate)
  ------------------
  |  Branch (1294:21): [True: 0, False: 0]
  ------------------
 1295|      0|                    node_t::delete_inner_r_e(newn);
 1296|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1297|      0|            }
 1298|  1.65k|        }
 1299|  2.29k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  2.03k|    {
 1304|  2.03k|        auto idx    = pos.subindex(first);
 1305|  2.03k|        auto count  = pos.count();
 1306|  2.03k|        auto node   = pos.node();
 1307|  2.03k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 2.03k]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  2.03k|        auto left_size          = pos.size_before(idx);
 1313|  2.03k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  2.03k|        auto dropped_size       = first;
 1315|  2.03k|        auto child_dropped_size = dropped_size - left_size;
 1316|  2.03k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 2.03k, Folded]
  |  Branch (1316:25): [True: 995, False: 1.04k]
  |  Branch (1316:45): [True: 753, False: 242]
  ------------------
 1317|    753|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 753]
  ------------------
 1318|    753|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|    753|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 753]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|    753|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [Folded, False: 753]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|    753|            return r;
 1324|  1.28k|        } else {
 1325|  1.28k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  1.28k|            auto newcount = count - idx;
 1330|  1.28k|            auto newn =
 1331|  1.28k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.28k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.28k|                       : node_t::make_inner_r_e(e);
 1336|  1.28k|            auto newr = newn->relaxed();
 1337|  1.28k|            IMMER_TRY {
  ------------------
  |  |   49|  1.28k|#define IMMER_TRY try
  ------------------
 1338|  1.28k|                auto subs =
 1339|  1.28k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.28k]
  ------------------
 1340|  1.28k|                           : pos.towards_sub_oh(
 1341|  1.28k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.28k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.28k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.28k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.28k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.28k, False: 0]
  ------------------
 1346|  1.28k|                pos.copy_sizes(
 1347|  1.28k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.28k|                newr->d.count    = newcount;
 1349|  1.28k|                newn->inner()[0] = get<1>(subs);
 1350|  1.28k|                std::copy(node->inner() + idx + 1,
 1351|  1.28k|                          node->inner() + count,
 1352|  1.28k|                          newn->inner() + 1);
 1353|  1.28k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.28k, False: 0]
  ------------------
 1354|  1.28k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.28k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 1.28k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  1.28k|                }
 1358|  1.28k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.28k|            }
 1360|  1.28k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  1.28k|        }
 1373|  2.03k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|    621|    {
 1304|    621|        auto idx    = pos.subindex(first);
 1305|    621|        auto count  = pos.count();
 1306|    621|        auto node   = pos.node();
 1307|    621|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 621]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|    621|        auto left_size          = pos.size_before(idx);
 1313|    621|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|    621|        auto dropped_size       = first;
 1315|    621|        auto child_dropped_size = dropped_size - left_size;
 1316|    621|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 621, Folded]
  |  Branch (1316:25): [True: 199, False: 422]
  |  Branch (1316:45): [True: 0, False: 199]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [Folded, False: 0]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|    621|        } else {
 1325|    621|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|    621|            auto newcount = count - idx;
 1330|    621|            auto newn =
 1331|    621|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 621]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|    621|                       : node_t::make_inner_r_e(e);
 1336|    621|            auto newr = newn->relaxed();
 1337|    621|            IMMER_TRY {
  ------------------
  |  |   49|    621|#define IMMER_TRY try
  ------------------
 1338|    621|                auto subs =
 1339|    621|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 621]
  ------------------
 1340|    621|                           : pos.towards_sub_oh(
 1341|    621|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|    621|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 621]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|    621|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|    621|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 621, False: 0]
  ------------------
 1346|    621|                pos.copy_sizes(
 1347|    621|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|    621|                newr->d.count    = newcount;
 1349|    621|                newn->inner()[0] = get<1>(subs);
 1350|    621|                std::copy(node->inner() + idx + 1,
 1351|    621|                          node->inner() + count,
 1352|    621|                          newn->inner() + 1);
 1353|    621|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 621, False: 0]
  ------------------
 1354|    621|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|    621|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 621]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|    621|                }
 1358|    621|                return std::make_tuple(pos.shift(), newn);
 1359|    621|            }
 1360|    621|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|    621|        }
 1373|    621|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  2.88k|    {
 1378|  2.88k|        auto node   = pos.node();
 1379|  2.88k|        auto idx    = pos.index(first);
 1380|  2.88k|        auto count  = pos.count();
 1381|  2.88k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [True: 0, Folded]
  ------------------
 1382|      0|                      std::is_nothrow_move_constructible<value_t>::value &&
  ------------------
  |  Branch (1382:23): [True: 0, Folded]
  ------------------
 1383|  2.88k|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 768, False: 2.11k]
  ------------------
 1384|  2.88k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 768, False: 2.11k]
  ------------------
 1385|    768|            auto data     = node->leaf();
 1386|    768|            auto newcount = count - idx;
 1387|    768|            std::move(data + idx, data + count, data);
 1388|    768|            detail::destroy_n(data + newcount, idx);
 1389|    768|            return std::make_tuple(0, node);
 1390|  2.11k|        } else {
 1391|  2.11k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  2.11k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [True: 2.11k, Folded]
  ------------------
 1393|  2.11k|                pos.visit(dec_visitor{});
 1394|  2.11k|            return std::make_tuple(0, newn);
 1395|  2.11k|        }
 1396|  2.88k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.68k|    {
 1304|  1.68k|        auto idx    = pos.subindex(first);
 1305|  1.68k|        auto count  = pos.count();
 1306|  1.68k|        auto node   = pos.node();
 1307|  1.68k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [True: 0, Folded]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|  1.68k|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 883, False: 801]
  ------------------
 1312|  1.68k|        auto left_size          = pos.size_before(idx);
 1313|  1.68k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.68k|        auto dropped_size       = first;
 1315|  1.68k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.68k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 1.68k]
  |  Branch (1316:25): [True: 0, False: 0]
  |  Branch (1316:45): [True: 0, False: 0]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [True: 0, Folded]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|  1.68k|        } else {
 1325|  1.68k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  1.68k|            auto newcount = count - idx;
 1330|  1.68k|            auto newn =
 1331|  1.68k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 883, False: 801]
  ------------------
 1332|    883|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|    883|                                                     norefs_tag{})) relaxed_t,
 1334|    883|                          node)
 1335|  1.68k|                       : node_t::make_inner_r_e(e);
 1336|  1.68k|            auto newr = newn->relaxed();
 1337|  1.68k|            IMMER_TRY {
  ------------------
  |  |   49|  1.68k|#define IMMER_TRY try
  ------------------
 1338|  1.68k|                auto subs =
 1339|  1.68k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 883, False: 801]
  ------------------
 1340|  1.68k|                           : pos.towards_sub_oh(
 1341|    801|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.68k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 883, False: 801]
  ------------------
 1343|    883|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.68k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.68k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.68k, False: 0]
  ------------------
 1346|  1.68k|                pos.copy_sizes(
 1347|  1.68k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.68k|                newr->d.count    = newcount;
 1349|  1.68k|                newn->inner()[0] = get<1>(subs);
 1350|  1.68k|                std::copy(node->inner() + idx + 1,
 1351|  1.68k|                          node->inner() + count,
 1352|  1.68k|                          newn->inner() + 1);
 1353|  1.68k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 801, False: 883]
  ------------------
 1354|    801|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|    801|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 801, Folded]
  ------------------
 1356|    801|                        pos.visit(dec_visitor{});
 1357|    801|                }
 1358|  1.68k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.68k|            }
 1360|  1.68k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  1.68k|        }
 1373|  1.68k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  6.98k|    {
 1378|  6.98k|        auto node   = pos.node();
 1379|  6.98k|        auto idx    = pos.index(first);
 1380|  6.98k|        auto count  = pos.count();
 1381|  6.98k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [Folded, False: 6.98k]
  ------------------
 1382|      0|                      std::is_nothrow_move_constructible<value_t>::value &&
  ------------------
  |  Branch (1382:23): [True: 0, Folded]
  ------------------
 1383|      0|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 0, False: 0]
  ------------------
 1384|  6.98k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 0, False: 6.98k]
  ------------------
 1385|      0|            auto data     = node->leaf();
 1386|      0|            auto newcount = count - idx;
 1387|      0|            std::move(data + idx, data + count, data);
 1388|      0|            detail::destroy_n(data + newcount, idx);
 1389|      0|            return std::make_tuple(0, node);
 1390|  6.98k|        } else {
 1391|  6.98k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  6.98k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [Folded, False: 6.98k]
  ------------------
 1393|      0|                pos.visit(dec_visitor{});
 1394|  6.98k|            return std::make_tuple(0, newn);
 1395|  6.98k|        }
 1396|  6.98k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  2.13k|    {
 1304|  2.13k|        auto idx    = pos.subindex(first);
 1305|  2.13k|        auto count  = pos.count();
 1306|  2.13k|        auto node   = pos.node();
 1307|  2.13k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 2.13k]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  2.13k|        auto left_size          = pos.size_before(idx);
 1313|  2.13k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  2.13k|        auto dropped_size       = first;
 1315|  2.13k|        auto child_dropped_size = dropped_size - left_size;
 1316|  2.13k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 2.13k]
  |  Branch (1316:25): [True: 0, False: 0]
  |  Branch (1316:45): [True: 0, False: 0]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [Folded, False: 0]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|  2.13k|        } else {
 1325|  2.13k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  2.13k|            auto newcount = count - idx;
 1330|  2.13k|            auto newn =
 1331|  2.13k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 2.13k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  2.13k|                       : node_t::make_inner_r_e(e);
 1336|  2.13k|            auto newr = newn->relaxed();
 1337|  2.13k|            IMMER_TRY {
  ------------------
  |  |   49|  2.13k|#define IMMER_TRY try
  ------------------
 1338|  2.13k|                auto subs =
 1339|  2.13k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 2.13k]
  ------------------
 1340|  2.13k|                           : pos.towards_sub_oh(
 1341|  2.13k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  2.13k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 2.13k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  2.13k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  2.13k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 2.13k, False: 0]
  ------------------
 1346|  2.13k|                pos.copy_sizes(
 1347|  2.13k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  2.13k|                newr->d.count    = newcount;
 1349|  2.13k|                newn->inner()[0] = get<1>(subs);
 1350|  2.13k|                std::copy(node->inner() + idx + 1,
 1351|  2.13k|                          node->inner() + count,
 1352|  2.13k|                          newn->inner() + 1);
 1353|  2.13k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 2.13k, False: 0]
  ------------------
 1354|  2.13k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  2.13k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 2.13k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  2.13k|                }
 1358|  2.13k|                return std::make_tuple(pos.shift(), newn);
 1359|  2.13k|            }
 1360|  2.13k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  2.13k|        }
 1373|  2.13k|    }
_ZN5immer6detail4rbts16dec_left_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
 1209|  2.00k|    {
 1210|  2.00k|        using node_t = node_type<Pos>;
 1211|  2.00k|        auto node    = p.node();
 1212|  2.00k|        if (node->dec()) {
  ------------------
  |  Branch (1212:13): [True: 2.00k, False: 0]
  ------------------
 1213|  2.00k|            p.each_left(dec_t{}, idx);
 1214|  2.00k|            node_t::delete_inner(node, p.count());
 1215|  2.00k|        }
 1216|  2.00k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  4.01k|    {
 1378|  4.01k|        auto node   = pos.node();
 1379|  4.01k|        auto idx    = pos.index(first);
 1380|  4.01k|        auto count  = pos.count();
 1381|  4.01k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [True: 0, Folded]
  ------------------
 1382|      0|                      std::is_nothrow_move_constructible<value_t>::value &&
  ------------------
  |  Branch (1382:23): [True: 0, Folded]
  ------------------
 1383|  4.01k|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 1.87k, False: 2.14k]
  ------------------
 1384|  4.01k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 1.87k, False: 2.14k]
  ------------------
 1385|  1.87k|            auto data     = node->leaf();
 1386|  1.87k|            auto newcount = count - idx;
 1387|  1.87k|            std::move(data + idx, data + count, data);
 1388|  1.87k|            detail::destroy_n(data + newcount, idx);
 1389|  1.87k|            return std::make_tuple(0, node);
 1390|  2.14k|        } else {
 1391|  2.14k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  2.14k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [True: 2.14k, Folded]
  ------------------
 1393|  2.14k|                pos.visit(dec_visitor{});
 1394|  2.14k|            return std::make_tuple(0, newn);
 1395|  2.14k|        }
 1396|  4.01k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.69k|    {
 1304|  1.69k|        auto idx    = pos.subindex(first);
 1305|  1.69k|        auto count  = pos.count();
 1306|  1.69k|        auto node   = pos.node();
 1307|  1.69k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [True: 0, Folded]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|  1.69k|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 407, False: 1.28k]
  ------------------
 1312|  1.69k|        auto left_size          = pos.size_before(idx);
 1313|  1.69k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.69k|        auto dropped_size       = first;
 1315|  1.69k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.69k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 1.69k]
  |  Branch (1316:25): [True: 0, False: 0]
  |  Branch (1316:45): [True: 0, False: 0]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [True: 0, Folded]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|  1.69k|        } else {
 1325|  1.69k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  1.69k|            auto newcount = count - idx;
 1330|  1.69k|            auto newn =
 1331|  1.69k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 407, False: 1.28k]
  ------------------
 1332|    407|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|    407|                                                     norefs_tag{})) relaxed_t,
 1334|    407|                          node)
 1335|  1.69k|                       : node_t::make_inner_r_e(e);
 1336|  1.69k|            auto newr = newn->relaxed();
 1337|  1.69k|            IMMER_TRY {
  ------------------
  |  |   49|  1.69k|#define IMMER_TRY try
  ------------------
 1338|  1.69k|                auto subs =
 1339|  1.69k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 407, False: 1.28k]
  ------------------
 1340|  1.69k|                           : pos.towards_sub_oh(
 1341|  1.28k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.69k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 407, False: 1.28k]
  ------------------
 1343|    407|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.69k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.69k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.69k, False: 0]
  ------------------
 1346|  1.69k|                pos.copy_sizes(
 1347|  1.69k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.69k|                newr->d.count    = newcount;
 1349|  1.69k|                newn->inner()[0] = get<1>(subs);
 1350|  1.69k|                std::copy(node->inner() + idx + 1,
 1351|  1.69k|                          node->inner() + count,
 1352|  1.69k|                          newn->inner() + 1);
 1353|  1.69k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.28k, False: 407]
  ------------------
 1354|  1.28k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.28k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 1.28k, Folded]
  ------------------
 1356|  1.28k|                        pos.visit(dec_visitor{});
 1357|  1.28k|                }
 1358|  1.69k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.69k|            }
 1360|  1.69k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  1.69k|        }
 1373|  1.69k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  55.4k|    {
 1378|  55.4k|        auto node   = pos.node();
 1379|  55.4k|        auto idx    = pos.index(first);
 1380|  55.4k|        auto count  = pos.count();
 1381|  55.4k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [Folded, False: 55.4k]
  ------------------
 1382|      0|                      std::is_nothrow_move_constructible<value_t>::value &&
  ------------------
  |  Branch (1382:23): [True: 0, Folded]
  ------------------
 1383|      0|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 0, False: 0]
  ------------------
 1384|  55.4k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 0, False: 55.4k]
  ------------------
 1385|      0|            auto data     = node->leaf();
 1386|      0|            auto newcount = count - idx;
 1387|      0|            std::move(data + idx, data + count, data);
 1388|      0|            detail::destroy_n(data + newcount, idx);
 1389|      0|            return std::make_tuple(0, node);
 1390|  55.4k|        } else {
 1391|  55.4k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  55.4k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [Folded, False: 55.4k]
  ------------------
 1393|      0|                pos.visit(dec_visitor{});
 1394|  55.4k|            return std::make_tuple(0, newn);
 1395|  55.4k|        }
 1396|  55.4k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.24k|    {
 1304|  1.24k|        auto idx    = pos.subindex(first);
 1305|  1.24k|        auto count  = pos.count();
 1306|  1.24k|        auto node   = pos.node();
 1307|  1.24k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 1.24k]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  1.24k|        auto left_size          = pos.size_before(idx);
 1313|  1.24k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.24k|        auto dropped_size       = first;
 1315|  1.24k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.24k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 1.24k]
  |  Branch (1316:25): [True: 0, False: 0]
  |  Branch (1316:45): [True: 0, False: 0]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [Folded, False: 0]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|  1.24k|        } else {
 1325|  1.24k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  1.24k|            auto newcount = count - idx;
 1330|  1.24k|            auto newn =
 1331|  1.24k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.24k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.24k|                       : node_t::make_inner_r_e(e);
 1336|  1.24k|            auto newr = newn->relaxed();
 1337|  1.24k|            IMMER_TRY {
  ------------------
  |  |   49|  1.24k|#define IMMER_TRY try
  ------------------
 1338|  1.24k|                auto subs =
 1339|  1.24k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.24k]
  ------------------
 1340|  1.24k|                           : pos.towards_sub_oh(
 1341|  1.24k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.24k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.24k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.24k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.24k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.24k, False: 0]
  ------------------
 1346|  1.24k|                pos.copy_sizes(
 1347|  1.24k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.24k|                newr->d.count    = newcount;
 1349|  1.24k|                newn->inner()[0] = get<1>(subs);
 1350|  1.24k|                std::copy(node->inner() + idx + 1,
 1351|  1.24k|                          node->inner() + count,
 1352|  1.24k|                          newn->inner() + 1);
 1353|  1.24k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.24k, False: 0]
  ------------------
 1354|  1.24k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.24k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 1.24k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  1.24k|                }
 1358|  1.24k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.24k|            }
 1360|  1.24k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  1.24k|        }
 1373|  1.24k|    }
_ZN5immer6detail4rbts16dec_left_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEvOT_j:
 1198|  1.87k|    {
 1199|  1.87k|        using node_t = node_type<Pos>;
 1200|  1.87k|        auto node    = p.node();
 1201|  1.87k|        if (node->dec()) {
  ------------------
  |  Branch (1201:13): [True: 1.87k, False: 0]
  ------------------
 1202|  1.87k|            p.each_left(dec_t{}, idx);
 1203|  1.87k|            node_t::delete_inner_r(node, p.count());
 1204|  1.87k|        }
 1205|  1.87k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|   226k|    {
 1247|   226k|        auto idx                = pos.subindex(first);
 1248|   226k|        auto count              = pos.count();
 1249|   226k|        auto node               = pos.node();
 1250|   226k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [True: 226k, Folded]
  |  Branch (1250:47): [True: 183k, False: 43.6k]
  ------------------
 1251|   226k|        auto left_size          = pos.size_before(idx);
 1252|   226k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|   226k|        auto dropped_size       = first;
 1254|   226k|        auto child_dropped_size = dropped_size - left_size;
 1255|   226k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [Folded, False: 226k]
  |  Branch (1255:25): [True: 0, False: 0]
  |  Branch (1255:45): [True: 0, False: 0]
  ------------------
 1256|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 0, False: 0]
  ------------------
 1257|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|      0|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 0, False: 0]
  ------------------
 1259|      0|                pos.visit(dec_left_visitor{}, idx);
 1260|      0|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [True: 0, Folded]
  ------------------
 1261|      0|                pos.visit(dec_visitor{});
 1262|      0|            return r;
 1263|   226k|        } else {
 1264|   226k|            using std::get;
 1265|   226k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 183k, False: 43.6k]
  ------------------
 1266|   226k|                                   : node_t::make_inner_r_e(e);
 1267|   226k|            auto newr     = newn->relaxed();
 1268|   226k|            auto newcount = count - idx;
 1269|   226k|            auto new_child_size = child_size - child_dropped_size;
 1270|   226k|            IMMER_TRY {
  ------------------
  |  |   49|   226k|#define IMMER_TRY try
  ------------------
 1271|   226k|                auto subs =
 1272|   226k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 183k, False: 43.6k]
  ------------------
 1273|   226k|                           : pos.towards_sub_oh(
 1274|  43.6k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|   226k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 183k, False: 43.6k]
  ------------------
 1276|   183k|                    pos.each_left(dec_visitor{}, idx);
 1277|   226k|                pos.copy_sizes(
 1278|   226k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|   226k|                std::copy(node->inner() + idx + 1,
 1280|   226k|                          node->inner() + count,
 1281|   226k|                          newn->inner() + 1);
 1282|   226k|                newn->inner()[0] = get<1>(subs);
 1283|   226k|                newr->d.sizes[0] = new_child_size;
 1284|   226k|                newr->d.count    = newcount;
 1285|   226k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 226k, False: 0]
  ------------------
 1286|   226k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 43.6k, False: 183k]
  ------------------
 1287|  43.6k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  43.6k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [True: 43.6k, Folded]
  ------------------
 1289|  43.6k|                        pos.visit(dec_visitor{});
 1290|  43.6k|                }
 1291|   226k|                return std::make_tuple(pos.shift(), newn);
 1292|   226k|            }
 1293|   226k|            IMMER_CATCH (...) {
 1294|      0|                if (!mutate)
  ------------------
  |  Branch (1294:21): [True: 0, False: 0]
  ------------------
 1295|      0|                    node_t::delete_inner_r_e(newn);
 1296|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1297|      0|            }
 1298|   226k|        }
 1299|   226k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  78.3k|    {
 1247|  78.3k|        auto idx                = pos.subindex(first);
 1248|  78.3k|        auto count              = pos.count();
 1249|  78.3k|        auto node               = pos.node();
 1250|  78.3k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [Folded, False: 78.3k]
  |  Branch (1250:47): [True: 0, False: 0]
  ------------------
 1251|  78.3k|        auto left_size          = pos.size_before(idx);
 1252|  78.3k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  78.3k|        auto dropped_size       = first;
 1254|  78.3k|        auto child_dropped_size = dropped_size - left_size;
 1255|  78.3k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [Folded, False: 78.3k]
  |  Branch (1255:25): [True: 0, False: 0]
  |  Branch (1255:45): [True: 0, False: 0]
  ------------------
 1256|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 0, False: 0]
  ------------------
 1257|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|      0|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 0, False: 0]
  ------------------
 1259|      0|                pos.visit(dec_left_visitor{}, idx);
 1260|      0|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [Folded, False: 0]
  ------------------
 1261|      0|                pos.visit(dec_visitor{});
 1262|      0|            return r;
 1263|  78.3k|        } else {
 1264|  78.3k|            using std::get;
 1265|  78.3k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 0, False: 78.3k]
  ------------------
 1266|  78.3k|                                   : node_t::make_inner_r_e(e);
 1267|  78.3k|            auto newr     = newn->relaxed();
 1268|  78.3k|            auto newcount = count - idx;
 1269|  78.3k|            auto new_child_size = child_size - child_dropped_size;
 1270|  78.3k|            IMMER_TRY {
  ------------------
  |  |   49|  78.3k|#define IMMER_TRY try
  ------------------
 1271|  78.3k|                auto subs =
 1272|  78.3k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 0, False: 78.3k]
  ------------------
 1273|  78.3k|                           : pos.towards_sub_oh(
 1274|  78.3k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  78.3k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 0, False: 78.3k]
  ------------------
 1276|      0|                    pos.each_left(dec_visitor{}, idx);
 1277|  78.3k|                pos.copy_sizes(
 1278|  78.3k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  78.3k|                std::copy(node->inner() + idx + 1,
 1280|  78.3k|                          node->inner() + count,
 1281|  78.3k|                          newn->inner() + 1);
 1282|  78.3k|                newn->inner()[0] = get<1>(subs);
 1283|  78.3k|                newr->d.sizes[0] = new_child_size;
 1284|  78.3k|                newr->d.count    = newcount;
 1285|  78.3k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 78.3k, False: 0]
  ------------------
 1286|  78.3k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 78.3k, False: 0]
  ------------------
 1287|  78.3k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  78.3k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [Folded, False: 78.3k]
  ------------------
 1289|      0|                        pos.visit(dec_visitor{});
 1290|  78.3k|                }
 1291|  78.3k|                return std::make_tuple(pos.shift(), newn);
 1292|  78.3k|            }
 1293|  78.3k|            IMMER_CATCH (...) {
 1294|      0|                if (!mutate)
  ------------------
  |  Branch (1294:21): [True: 0, False: 0]
  ------------------
 1295|      0|                    node_t::delete_inner_r_e(newn);
 1296|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1297|      0|            }
 1298|  78.3k|        }
 1299|  78.3k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  6.65k|    {
 1304|  6.65k|        auto idx    = pos.subindex(first);
 1305|  6.65k|        auto count  = pos.count();
 1306|  6.65k|        auto node   = pos.node();
 1307|  6.65k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [True: 0, Folded]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|  6.65k|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 4.64k, False: 2.00k]
  ------------------
 1312|  6.65k|        auto left_size          = pos.size_before(idx);
 1313|  6.65k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  6.65k|        auto dropped_size       = first;
 1315|  6.65k|        auto child_dropped_size = dropped_size - left_size;
 1316|  6.65k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 6.65k, Folded]
  |  Branch (1316:25): [True: 4.53k, False: 2.11k]
  |  Branch (1316:45): [True: 2.71k, False: 1.82k]
  ------------------
 1317|  2.71k|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 2.00k, False: 705]
  ------------------
 1318|  2.71k|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|  2.71k|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 2.00k, False: 705]
  ------------------
 1320|  2.00k|                pos.visit(dec_left_visitor{}, idx);
 1321|    705|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [True: 705, Folded]
  ------------------
 1322|    705|                pos.visit(dec_visitor{});
 1323|  2.71k|            return r;
 1324|  3.94k|        } else {
 1325|  3.94k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  3.94k|            auto newcount = count - idx;
 1330|  3.94k|            auto newn =
 1331|  3.94k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 2.64k, False: 1.30k]
  ------------------
 1332|  2.64k|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|  2.64k|                                                     norefs_tag{})) relaxed_t,
 1334|  2.64k|                          node)
 1335|  3.94k|                       : node_t::make_inner_r_e(e);
 1336|  3.94k|            auto newr = newn->relaxed();
 1337|  3.94k|            IMMER_TRY {
  ------------------
  |  |   49|  3.94k|#define IMMER_TRY try
  ------------------
 1338|  3.94k|                auto subs =
 1339|  3.94k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 2.64k, False: 1.30k]
  ------------------
 1340|  3.94k|                           : pos.towards_sub_oh(
 1341|  1.30k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  3.94k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 2.64k, False: 1.30k]
  ------------------
 1343|  2.64k|                    pos.each_left(dec_visitor{}, idx);
 1344|  3.94k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  3.94k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 3.94k, False: 0]
  ------------------
 1346|  3.94k|                pos.copy_sizes(
 1347|  3.94k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  3.94k|                newr->d.count    = newcount;
 1349|  3.94k|                newn->inner()[0] = get<1>(subs);
 1350|  3.94k|                std::copy(node->inner() + idx + 1,
 1351|  3.94k|                          node->inner() + count,
 1352|  3.94k|                          newn->inner() + 1);
 1353|  3.94k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.30k, False: 2.64k]
  ------------------
 1354|  1.30k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.30k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 1.30k, Folded]
  ------------------
 1356|  1.30k|                        pos.visit(dec_visitor{});
 1357|  1.30k|                }
 1358|  3.94k|                return std::make_tuple(pos.shift(), newn);
 1359|  3.94k|            }
 1360|  3.94k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  3.94k|        }
 1373|  6.65k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.08k|    {
 1304|  1.08k|        auto idx    = pos.subindex(first);
 1305|  1.08k|        auto count  = pos.count();
 1306|  1.08k|        auto node   = pos.node();
 1307|  1.08k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [True: 0, Folded]
  ------------------
 1308|       |                      // this is more restrictive than actually needed because
 1309|       |                      // it causes the algorithm to also avoid mutating the leaf
 1310|       |                      // in place
 1311|  1.08k|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [True: 0, Folded]
  |  Branch (1311:52): [True: 633, False: 448]
  ------------------
 1312|  1.08k|        auto left_size          = pos.size_before(idx);
 1313|  1.08k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.08k|        auto dropped_size       = first;
 1315|  1.08k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.08k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 1.08k, Folded]
  |  Branch (1316:25): [True: 70, False: 1.01k]
  |  Branch (1316:45): [True: 0, False: 70]
  ------------------
 1317|      0|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 0]
  ------------------
 1318|      0|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|      0|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 0]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|      0|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [True: 0, Folded]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|      0|            return r;
 1324|  1.08k|        } else {
 1325|  1.08k|            using std::get;
 1326|       |            // if possible, we convert the node to a relaxed one simply by
 1327|       |            // allocating a `relaxed_t` size table for it... maybe some of this
 1328|       |            // magic should be moved as a `node<...>` static method...
 1329|  1.08k|            auto newcount = count - idx;
 1330|  1.08k|            auto newn =
 1331|  1.08k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 633, False: 448]
  ------------------
 1332|    633|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|    633|                                                     norefs_tag{})) relaxed_t,
 1334|    633|                          node)
 1335|  1.08k|                       : node_t::make_inner_r_e(e);
 1336|  1.08k|            auto newr = newn->relaxed();
 1337|  1.08k|            IMMER_TRY {
  ------------------
  |  |   49|  1.08k|#define IMMER_TRY try
  ------------------
 1338|  1.08k|                auto subs =
 1339|  1.08k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 633, False: 448]
  ------------------
 1340|  1.08k|                           : pos.towards_sub_oh(
 1341|    448|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.08k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 633, False: 448]
  ------------------
 1343|    633|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.08k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.08k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.08k, False: 0]
  ------------------
 1346|  1.08k|                pos.copy_sizes(
 1347|  1.08k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.08k|                newr->d.count    = newcount;
 1349|  1.08k|                newn->inner()[0] = get<1>(subs);
 1350|  1.08k|                std::copy(node->inner() + idx + 1,
 1351|  1.08k|                          node->inner() + count,
 1352|  1.08k|                          newn->inner() + 1);
 1353|  1.08k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 448, False: 633]
  ------------------
 1354|    448|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|    448|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 448, Folded]
  ------------------
 1356|    448|                        pos.visit(dec_visitor{});
 1357|    448|                }
 1358|  1.08k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.08k|            }
 1360|  1.08k|            IMMER_CATCH (...) {
 1361|      0|                if (!mutate)
  ------------------
  |  Branch (1361:21): [True: 0, False: 0]
  ------------------
 1362|      0|                    node_t::delete_inner_r_e(newn);
 1363|      0|                else {
 1364|       |                    // restore the regular node that we were
 1365|       |                    // attempting to relax...
 1366|      0|                    node_t::heap::deallocate(node_t::max_sizeof_relaxed,
 1367|      0|                                             node->impl.d.data.inner.relaxed);
 1368|      0|                    node->impl.d.data.inner.relaxed = nullptr;
 1369|      0|                }
 1370|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1371|      0|            }
 1372|  1.08k|        }
 1373|  1.08k|    }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|  10.1k|        {
  350|  10.1k|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 10.1k, False: 0]
  ------------------
  351|  10.1k|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 9.43k, False: 711]
  ------------------
  352|  10.1k|                       ? visit_maybe_relaxed_sub(rootl,
  353|  9.43k|                                                 shiftl,
  354|  9.43k|                                                 sizel,
  355|  9.43k|                                                 this_t{},
  356|  9.43k|                                                 posr,
  357|  9.43k|                                                 first,
  358|  9.43k|                                                 size_t{})
  359|  10.1k|                       : posr.first_sub_inner(
  360|    711|                             rrb{}, first, rootl, shiftl, sizel);
  361|  10.1k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  22.5k|    {
  383|  22.5k|        auto nl = posl.node();
  384|  22.5k|        auto nr = posr.node();
  385|  22.5k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 7.83k, False: 14.6k]
  ------------------
  386|  7.83k|            return true;
  387|  14.6k|        auto cl = posl.count();
  388|  14.6k|        auto cr = posr.count();
  389|  14.6k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 14.6k, False: 0]
  ------------------
  390|  14.6k|        auto sbr = size_t{};
  391|  14.6k|        auto i   = count_t{};
  392|  14.6k|        auto j   = count_t{};
  393|  81.4k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 71.3k, False: 10.0k]
  ------------------
  394|  71.3k|            auto sbl = posl.size_before(i);
  395|   127k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 111k, False: 15.6k]
  |  Branch (395:34): [True: 56.2k, False: 55.6k]
  ------------------
  396|  56.2k|                ;
  397|  71.3k|            auto res =
  398|  71.3k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 34.1k, False: 37.1k]
  ------------------
  399|  71.3k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  71.3k|                    : posl.nth_sub(i,
  401|  37.1k|                                   for_each_chunk_p_visitor{},
  402|  37.1k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  71.3k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 4.57k, False: 66.7k]
  ------------------
  404|  4.57k|                return false;
  405|  71.3k|        }
  406|  10.0k|        return true;
  407|  14.6k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  16.4k|        {
  337|  16.4k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  16.4k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  17.2k|    {
  428|  17.2k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 10.7k, False: 6.46k]
  ------------------
  429|  10.7k|            return true;
  430|  6.46k|        auto cl = posl.count();
  431|  6.46k|        auto cr = posr.count();
  432|  6.46k|        auto mp = std::min(cl, cr);
  433|  6.46k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 5.49k, False: 969]
  ------------------
  434|  6.46k|                          posl.node()->leaf() + mp,
  435|  6.46k|                          posr.node()->leaf()) &&
  436|  5.49k|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 5.27k, False: 228]
  ------------------
  437|  5.49k|                          posl.node()->leaf() + posl.count(),
  438|  5.49k|                          first + (idx + mp));
  439|  17.2k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESH_RNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  16.0k|        {
  330|  16.0k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  16.0k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIX12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  412|  4.17k|    {
  413|  4.17k|        return this_t::visit_relaxed(posl, posr, first, idx);
  414|  4.17k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  4.17k|    {
  383|  4.17k|        auto nl = posl.node();
  384|  4.17k|        auto nr = posr.node();
  385|  4.17k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 4.17k]
  ------------------
  386|      0|            return true;
  387|  4.17k|        auto cl = posl.count();
  388|  4.17k|        auto cr = posr.count();
  389|  4.17k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 4.17k, False: 0]
  ------------------
  390|  4.17k|        auto sbr = size_t{};
  391|  4.17k|        auto i   = count_t{};
  392|  4.17k|        auto j   = count_t{};
  393|  12.1k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 9.72k, False: 2.46k]
  ------------------
  394|  9.72k|            auto sbl = posl.size_before(i);
  395|  15.2k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 12.3k, False: 2.92k]
  |  Branch (395:34): [True: 5.51k, False: 6.79k]
  ------------------
  396|  5.51k|                ;
  397|  9.72k|            auto res =
  398|  9.72k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 6.55k, False: 3.17k]
  ------------------
  399|  9.72k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  9.72k|                    : posl.nth_sub(i,
  401|  3.17k|                                   for_each_chunk_p_visitor{},
  402|  3.17k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  9.72k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 1.70k, False: 8.01k]
  ------------------
  404|  1.70k|                return false;
  405|  9.72k|        }
  406|  2.46k|        return true;
  407|  4.17k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  3.81k|        {
  337|  3.81k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  3.81k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_12leaf_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  10.6k|    {
  428|  10.6k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 8.20k, False: 2.42k]
  ------------------
  429|  8.20k|            return true;
  430|  2.42k|        auto cl = posl.count();
  431|  2.42k|        auto cr = posr.count();
  432|  2.42k|        auto mp = std::min(cl, cr);
  433|  2.42k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 1.96k, False: 464]
  ------------------
  434|  2.42k|                          posl.node()->leaf() + mp,
  435|  2.42k|                          posr.node()->leaf()) &&
  436|  1.96k|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 1.74k, False: 220]
  ------------------
  437|  1.96k|                          posl.node()->leaf() + posl.count(),
  438|  1.96k|                          first + (idx + mp));
  439|  10.6k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  2.17k|        {
  330|  2.17k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  2.17k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIX12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  412|  2.17k|    {
  413|  2.17k|        return this_t::visit_relaxed(posl, posr, first, idx);
  414|  2.17k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  2.17k|    {
  383|  2.17k|        auto nl = posl.node();
  384|  2.17k|        auto nr = posr.node();
  385|  2.17k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 2.17k]
  ------------------
  386|      0|            return true;
  387|  2.17k|        auto cl = posl.count();
  388|  2.17k|        auto cr = posr.count();
  389|  2.17k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 2.17k, False: 0]
  ------------------
  390|  2.17k|        auto sbr = size_t{};
  391|  2.17k|        auto i   = count_t{};
  392|  2.17k|        auto j   = count_t{};
  393|  16.3k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 14.5k, False: 1.73k]
  ------------------
  394|  14.5k|            auto sbl = posl.size_before(i);
  395|  24.9k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 20.5k, False: 4.40k]
  |  Branch (395:34): [True: 10.4k, False: 10.1k]
  ------------------
  396|  10.4k|                ;
  397|  14.5k|            auto res =
  398|  14.5k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 8.95k, False: 5.61k]
  ------------------
  399|  14.5k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  14.5k|                    : posl.nth_sub(i,
  401|  5.61k|                                   for_each_chunk_p_visitor{},
  402|  5.61k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  14.5k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 441, False: 14.1k]
  ------------------
  404|    441|                return false;
  405|  14.5k|        }
  406|  1.73k|        return true;
  407|  2.17k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  7.62k|        {
  337|  7.62k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  7.62k|        }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    476|        {
  330|    476|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    476|        }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    851|        {
  330|    851|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    851|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  419|  1.41k|    {
  420|  1.41k|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 1.41k, False: 0]
  ------------------
  421|  1.41k|                   ? this_t::visit_regular(posl, posr.node())
  422|  1.41k|                   : this_t::visit_regular(posr, posl.node());
  423|  1.41k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  20.4k|    {
  444|  20.4k|        auto node = pos.node();
  445|  20.4k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 12.9k, False: 7.50k]
  |  Branch (445:33): [True: 2.98k, False: 4.52k]
  ------------------
  446|  20.4k|    }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  29.6k|    {
  451|  29.6k|        auto node = pos.node();
  452|  29.6k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 20.0k, False: 9.53k]
  |  Branch (452:33): [True: 5.66k, False: 3.86k]
  ------------------
  453|  9.53k|                                           node->leaf() + pos.count(),
  454|  9.53k|                                           other->leaf());
  455|  29.6k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  10.3k|    {
  444|  10.3k|        auto node = pos.node();
  445|  10.3k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 3.38k, False: 7.01k]
  |  Branch (445:33): [True: 2.73k, False: 4.27k]
  ------------------
  446|  10.3k|    }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  2.86k|    {
  451|  2.86k|        auto node = pos.node();
  452|  2.86k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 1.48k, False: 1.37k]
  |  Branch (452:33): [True: 571, False: 806]
  ------------------
  453|  1.37k|                                           node->leaf() + pos.count(),
  454|  1.37k|                                           other->leaf());
  455|  2.86k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  4.17k|    {
  444|  4.17k|        auto node = pos.node();
  445|  4.17k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 674, False: 3.50k]
  |  Branch (445:33): [True: 2.40k, False: 1.10k]
  ------------------
  446|  4.17k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|   195k|    {
  113|   195k|        auto data = as_const(pos.node()->leaf());
  114|   195k|        return fn(data, data + pos.count());
  115|   195k|    }
_ZZN5immer6detail4rbts14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaOT_ENUlSE_T0_E_clIPKiSK_EEDaSE_SG_:
  367|  1.01M|        return [iter](auto f, auto e) mutable {
  368|  1.01M|            if (f == &*iter) {
  ------------------
  |  Branch (368:17): [True: 73.7k, False: 942k]
  ------------------
  369|  73.7k|                iter += e - f;
  370|  73.7k|                return true;
  371|  73.7k|            }
  372|  8.04M|            for (; f != e; ++f, ++iter)
  ------------------
  |  Branch (372:20): [True: 7.10M, False: 940k]
  ------------------
  373|  7.10M|                if (*f != *iter)
  ------------------
  |  Branch (373:21): [True: 2.32k, False: 7.10M]
  ------------------
  374|  2.32k|                    return false;
  375|   940k|            return true;
  376|   942k|        };
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|  3.78M|    {
   54|  3.78M|        return pos.towards(this_t{}, idx);
   55|  3.78M|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|   848k|    {
   60|   848k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|   848k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|   216k|    {
   54|   216k|        return pos.towards(this_t{}, idx);
   55|   216k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|   202k|    {
   60|   202k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|   202k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|   296k|    {
   54|   296k|        return pos.towards(this_t{}, idx);
   55|   296k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|  14.2k|    {
   60|  14.2k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|  14.2k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|  36.1k|    {
   54|  36.1k|        return pos.towards(this_t{}, idx);
   55|  36.1k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  21.1k|    {
  107|  21.1k|        return pos.each_pred(this_t{}, fn);
  108|  21.1k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESH_RNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    561|        {
  330|    561|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    561|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSM_OT1_m:
  419|  9.51k|    {
  420|  9.51k|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 9.51k, False: 0]
  ------------------
  421|  9.51k|                   ? this_t::visit_regular(posl, posr.node())
  422|  9.51k|                   : this_t::visit_regular(posr, posl.node());
  423|  9.51k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|   812k|    {
  113|   812k|        auto data = as_const(pos.node()->leaf());
  114|   812k|        return fn(data, data + pos.count());
  115|   812k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  8.90k|    {
  107|  8.90k|        return pos.each_pred(this_t{}, fn);
  108|  8.90k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|  7.81k|    {
  113|  7.81k|        auto data = as_const(pos.node()->leaf());
  114|  7.81k|        return fn(data, data + pos.count());
  115|  7.81k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  3.92k|    {
  107|  3.92k|        return pos.each_pred(this_t{}, fn);
  108|  3.92k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  2.18k|        {
  330|  2.18k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  2.18k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  2.35k|    {
  383|  2.35k|        auto nl = posl.node();
  384|  2.35k|        auto nr = posr.node();
  385|  2.35k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 2.35k]
  ------------------
  386|      0|            return true;
  387|  2.35k|        auto cl = posl.count();
  388|  2.35k|        auto cr = posr.count();
  389|  2.35k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 2.35k, False: 0]
  ------------------
  390|  2.35k|        auto sbr = size_t{};
  391|  2.35k|        auto i   = count_t{};
  392|  2.35k|        auto j   = count_t{};
  393|  7.92k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 6.76k, False: 1.15k]
  ------------------
  394|  6.76k|            auto sbl = posl.size_before(i);
  395|  10.2k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 7.64k, False: 2.56k]
  |  Branch (395:34): [True: 3.45k, False: 4.19k]
  ------------------
  396|  3.45k|                ;
  397|  6.76k|            auto res =
  398|  6.76k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 3.87k, False: 2.88k]
  ------------------
  399|  6.76k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  6.76k|                    : posl.nth_sub(i,
  401|  2.88k|                                   for_each_chunk_p_visitor{},
  402|  2.88k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  6.76k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 1.19k, False: 5.57k]
  ------------------
  404|  1.19k|                return false;
  405|  6.76k|        }
  406|  1.15k|        return true;
  407|  2.35k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  5.07k|        {
  337|  5.07k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  5.07k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_13full_leaf_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  5.07k|    {
  428|  5.07k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 3.64k, False: 1.42k]
  ------------------
  429|  3.64k|            return true;
  430|  1.42k|        auto cl = posl.count();
  431|  1.42k|        auto cr = posr.count();
  432|  1.42k|        auto mp = std::min(cl, cr);
  433|  1.42k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 977, False: 451]
  ------------------
  434|  1.42k|                          posl.node()->leaf() + mp,
  435|  1.42k|                          posr.node()->leaf()) &&
  436|    977|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 977, False: 0]
  ------------------
  437|    977|                          posl.node()->leaf() + posl.count(),
  438|    977|                          first + (idx + mp));
  439|  5.07k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  1.99k|        {
  330|  1.99k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  1.99k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  1.12k|    {
  383|  1.12k|        auto nl = posl.node();
  384|  1.12k|        auto nr = posr.node();
  385|  1.12k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 1.12k]
  ------------------
  386|      0|            return true;
  387|  1.12k|        auto cl = posl.count();
  388|  1.12k|        auto cr = posr.count();
  389|  1.12k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 1.12k, False: 0]
  ------------------
  390|  1.12k|        auto sbr = size_t{};
  391|  1.12k|        auto i   = count_t{};
  392|  1.12k|        auto j   = count_t{};
  393|  7.68k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 6.82k, False: 860]
  ------------------
  394|  6.82k|            auto sbl = posl.size_before(i);
  395|  12.4k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 11.7k, False: 746]
  |  Branch (395:34): [True: 5.66k, False: 6.08k]
  ------------------
  396|  5.66k|                ;
  397|  6.82k|            auto res =
  398|  6.82k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 3.75k, False: 3.07k]
  ------------------
  399|  6.82k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  6.82k|                    : posl.nth_sub(i,
  401|  3.07k|                                   for_each_chunk_p_visitor{},
  402|  3.07k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  6.82k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 261, False: 6.56k]
  ------------------
  404|    261|                return false;
  405|  6.82k|        }
  406|    860|        return true;
  407|  1.12k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_8full_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  419|    876|    {
  420|    876|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 876, False: 0]
  ------------------
  421|    876|                   ? this_t::visit_regular(posl, posr.node())
  422|    876|                   : this_t::visit_regular(posr, posl.node());
  423|    876|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|   120k|    {
  107|   120k|        return pos.each_pred(this_t{}, fn);
  108|   120k|    }
_ZN5immer6detail4rbts14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaOT_:
  366|  51.9k|    {
  367|  51.9k|        return [iter](auto f, auto e) mutable {
  368|  51.9k|            if (f == &*iter) {
  369|  51.9k|                iter += e - f;
  370|  51.9k|                return true;
  371|  51.9k|            }
  372|  51.9k|            for (; f != e; ++f, ++iter)
  373|  51.9k|                if (*f != *iter)
  374|  51.9k|                    return false;
  375|  51.9k|            return true;
  376|  51.9k|        };
  377|  51.9k|    }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|    973|        {
  350|    973|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 973, False: 0]
  ------------------
  351|    973|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 711, False: 262]
  ------------------
  352|    973|                       ? visit_maybe_relaxed_sub(rootl,
  353|    711|                                                 shiftl,
  354|    711|                                                 sizel,
  355|    711|                                                 this_t{},
  356|    711|                                                 posr,
  357|    711|                                                 first,
  358|    711|                                                 size_t{})
  359|    973|                       : posr.first_sub_inner(
  360|    262|                             rrb{}, first, rootl, shiftl, sizel);
  361|    973|        }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|  9.68k|        {
  350|  9.68k|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 9.68k, False: 0]
  ------------------
  351|  9.68k|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 9.68k, False: 0]
  ------------------
  352|  9.68k|                       ? visit_maybe_relaxed_sub(rootl,
  353|  9.68k|                                                 shiftl,
  354|  9.68k|                                                 sizel,
  355|  9.68k|                                                 this_t{},
  356|  9.68k|                                                 posr,
  357|  9.68k|                                                 first,
  358|  9.68k|                                                 size_t{})
  359|  9.68k|                       : posr.first_sub_inner(
  360|      0|                             rrb{}, first, rootl, shiftl, sizel);
  361|  9.68k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  6.51k|    {
  451|  6.51k|        auto node = pos.node();
  452|  6.51k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 1.42k, False: 5.08k]
  |  Branch (452:33): [True: 1.85k, False: 3.23k]
  ------------------
  453|  5.08k|                                           node->leaf() + pos.count(),
  454|  5.08k|                                           other->leaf());
  455|  6.51k|    }

_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_11dec_visitorEJEEEDcPT_jmT0_DpOT1_:
 1838|   228M|{
 1839|   228M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 228M, False: 0]
  ------------------
 1840|   228M|    auto relaxed = node->relaxed();
 1841|   228M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 212M, False: 16.6M]
  ------------------
 1842|   212M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 212M, False: 0]
  ------------------
 1843|   212M|        return make_relaxed_pos(node, shift, relaxed)
 1844|   212M|            .visit(v, std::forward<Args>(args)...);
 1845|   212M|    } else {
 1846|  16.6M|        return make_regular_sub_pos(node, shift, size)
 1847|  16.6M|            .visit(v, std::forward<Args>(args)...);
 1848|  16.6M|    }
 1849|   228M|}
_ZN5immer6detail4rbts16make_relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jPNSE_9relaxed_tE:
 1828|   585M|{
 1829|   585M|    assert(node);
  ------------------
  |  Branch (1829:5): [True: 585M, False: 0]
  ------------------
 1830|   585M|    assert(relaxed);
  ------------------
  |  Branch (1830:5): [True: 585M, False: 0]
  ------------------
 1831|   585M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1831:5): [True: 585M, False: 0]
  ------------------
 1832|   585M|    return {node, shift, relaxed};
 1833|   585M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1813|   239M|    {
 1814|   239M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   239M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
 1431|   398M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
 1476|  46.6M|    {
 1477|  46.6M|        each_left(v, relaxed_->d.count, args...);
 1478|  46.6M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1623|  46.8M|    {
 1624|  46.8M|        auto p = node_->inner();
 1625|  46.8M|        auto s = size_t{};
 1626|  46.8M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 10.2M, False: 36.5M]
  ------------------
 1627|  83.4M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 73.2M, False: 10.2M]
  ------------------
 1628|  73.2M|                IMMER_PREFETCH(p + i + 1);
 1629|  73.2M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  73.2M|                    .visit(v, args...);
 1631|  73.2M|                s = relaxed_->d.sizes[i];
 1632|  73.2M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 73.2M, False: 0]
  ------------------
 1633|  73.2M|            }
 1634|  36.5M|        } else {
 1635|  36.5M|            auto ss = shift_ - B;
 1636|   262M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 225M, False: 36.5M]
  ------------------
 1637|   225M|                visit_maybe_relaxed_sub(
 1638|   225M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|   225M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 225M, False: 0]
  ------------------
 1641|   225M|            }
 1642|  36.5M|        }
 1643|  46.8M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
 1430|   360M|    count_t count() const { return relaxed_->d.count; }
_ZN5immer6detail4rbts20make_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_15regular_sub_posIT_EEPSE_jm:
 1044|  27.2M|{
 1045|  27.2M|    assert(node);
  ------------------
  |  Branch (1045:5): [True: 27.2M, False: 0]
  ------------------
 1046|  27.2M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1046:5): [True: 27.2M, False: 0]
  ------------------
 1047|  27.2M|    assert(size > 0);
  ------------------
  |  Branch (1047:5): [True: 27.2M, False: 0]
  ------------------
 1048|  27.2M|    assert(size <= (branches<NodeT::bits, size_t> << shift));
  ------------------
  |  Branch (1048:5): [True: 27.2M, False: 0]
  ------------------
 1049|  27.2M|    return {node, shift, size};
 1050|  27.2M|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1036|  16.6M|    {
 1037|  16.6M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  16.6M|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
  785|  28.8M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
  825|  1.15M|    {
  826|  1.15M|        return each_regular(*this, v, args...);
  827|  1.15M|    }
_ZN5immer6detail4rbts12each_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_DpOT1_:
  343|  1.15M|{
  344|  1.15M|    constexpr auto B  = bits<Pos>;
  345|  1.15M|    constexpr auto BL = bits_leaf<Pos>;
  346|  1.15M|    auto n            = p.node()->inner();
  347|  1.15M|    auto last         = p.count() - 1;
  348|  1.15M|    auto e            = n + last;
  349|  1.15M|    if (p.shift() == BL) {
  ------------------
  |  Branch (349:9): [True: 89.1k, False: 1.06M]
  ------------------
  350|   283k|        for (; n != e; ++n) {
  ------------------
  |  Branch (350:16): [True: 194k, False: 89.1k]
  ------------------
  351|   194k|            IMMER_PREFETCH(n + 1);
  352|   194k|            make_full_leaf_pos(*n).visit(v, args...);
  353|   194k|        }
  354|  89.1k|        make_leaf_pos(*n, p.size()).visit(v, args...);
  355|  1.06M|    } else {
  356|  1.06M|        auto ss = p.shift() - B;
  357|  3.61M|        for (; n != e; ++n)
  ------------------
  |  Branch (357:16): [True: 2.54M, False: 1.06M]
  ------------------
  358|  2.54M|            make_full_pos(*n, ss).visit(v, args...);
  359|  1.06M|        make_regular_pos(*n, ss, p.size()).visit(v, args...);
  360|  1.06M|    }
  361|  1.15M|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  787|  12.7M|    shift_t shift() const { return shift_; }
_ZN5immer6detail4rbts18make_full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_13full_leaf_posIT_EEPSE_:
  214|  14.7M|{
  215|  14.7M|    assert(node);
  ------------------
  |  Branch (215:5): [True: 14.7M, False: 0]
  ------------------
  216|  14.7M|    return {node};
  217|  14.7M|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  207|  4.32M|    {
  208|  4.32M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  4.32M|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
  199|  9.95M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
  198|  10.9M|    count_t count() const { return branches<BL>; }
_ZN5immer6detail4rbts13make_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_8leaf_posIT_EEPSE_m:
  119|  2.53M|{
  120|  2.53M|    assert(node);
  ------------------
  |  Branch (120:5): [True: 2.53M, False: 0]
  ------------------
  121|  2.53M|    assert(size > 0);
  ------------------
  |  Branch (121:5): [True: 2.53M, False: 0]
  ------------------
  122|  2.53M|    return {node, size};
  123|  2.53M|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
  786|  10.3M|    size_t size() const { return size_; }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  112|  1.11M|    {
  113|  1.11M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  1.11M|    }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
  104|  2.53M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
  103|  3.41M|    count_t count() const { return index(size_ - 1) + 1; }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
  107|  3.44M|    count_t index(size_t idx) const { return idx & mask<BL>; }
_ZN5immer6detail4rbts13make_full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_8full_posIT_EEPSE_j:
 1412|  11.1M|{
 1413|  11.1M|    assert(node);
  ------------------
  |  Branch (1413:5): [True: 11.1M, False: 0]
  ------------------
 1414|  11.1M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1414:5): [True: 11.1M, False: 0]
  ------------------
 1415|  11.1M|    return {node, shift};
 1416|  11.1M|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1405|  9.57M|    {
 1406|  9.57M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  9.57M|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
 1159|  10.2M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
 1185|   103k|    {
 1186|   103k|        auto p = node_->inner();
 1187|   103k|        auto e = p + branches<B>;
 1188|   103k|        if (shift_ == BL) {
  ------------------
  |  Branch (1188:13): [True: 90.4k, False: 13.2k]
  ------------------
 1189|   814k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1189:20): [True: 723k, False: 90.4k]
  ------------------
 1190|   723k|                IMMER_PREFETCH(p + 1);
 1191|   723k|                make_full_leaf_pos(*p).visit(v, args...);
 1192|   723k|            }
 1193|  90.4k|        } else {
 1194|  13.2k|            auto ss = shift_ - B;
 1195|   119k|            for (; p != e; ++p)
  ------------------
  |  Branch (1195:20): [True: 106k, False: 13.2k]
  ------------------
 1196|   106k|                make_full_pos(*p, ss).visit(v, args...);
 1197|  13.2k|        }
 1198|   103k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
 1158|  1.30M|    count_t count() const { return branches<B>; }
_ZN5immer6detail4rbts16make_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11regular_posIT_EEPSE_jm:
  690|  9.67M|{
  691|  9.67M|    assert(node);
  ------------------
  |  Branch (691:5): [True: 9.67M, False: 0]
  ------------------
  692|  9.67M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (692:5): [True: 9.67M, False: 0]
  ------------------
  693|  9.67M|    assert(size > 0);
  ------------------
  |  Branch (693:5): [True: 9.67M, False: 0]
  ------------------
  694|  9.67M|    return {node, shift, size};
  695|  9.67M|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  336|  4.17M|    {
  337|  4.17M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  4.17M|    }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
  231|  17.9M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
  243|  4.12M|    {
  244|  4.12M|        return each_regular(*this, v, args...);
  245|  4.12M|    }
_ZN5immer6detail4rbts12each_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_DpOT1_:
  343|  4.12M|{
  344|  4.12M|    constexpr auto B  = bits<Pos>;
  345|  4.12M|    constexpr auto BL = bits_leaf<Pos>;
  346|  4.12M|    auto n            = p.node()->inner();
  347|  4.12M|    auto last         = p.count() - 1;
  348|  4.12M|    auto e            = n + last;
  349|  4.12M|    if (p.shift() == BL) {
  ------------------
  |  Branch (349:9): [True: 1.02M, False: 3.09M]
  ------------------
  350|  4.39M|        for (; n != e; ++n) {
  ------------------
  |  Branch (350:16): [True: 3.37M, False: 1.02M]
  ------------------
  351|  3.37M|            IMMER_PREFETCH(n + 1);
  352|  3.37M|            make_full_leaf_pos(*n).visit(v, args...);
  353|  3.37M|        }
  354|  1.02M|        make_leaf_pos(*n, p.size()).visit(v, args...);
  355|  3.09M|    } else {
  356|  3.09M|        auto ss = p.shift() - B;
  357|  10.0M|        for (; n != e; ++n)
  ------------------
  |  Branch (357:16): [True: 6.90M, False: 3.09M]
  ------------------
  358|  6.90M|            make_full_pos(*n, ss).visit(v, args...);
  359|  3.09M|        make_regular_pos(*n, ss, p.size()).visit(v, args...);
  360|  3.09M|    }
  361|  4.12M|}
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  233|  16.8M|    shift_t shift() const { return shift_; }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
  232|  24.5M|    size_t size() const { return size_; }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
  230|  12.4M|    count_t count() const { return index(size_ - 1) + 1; }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
  234|  23.4M|    count_t index(size_t idx) const { return (idx >> shift_) & mask<B>; }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
  784|  20.2M|    count_t count() const { return subindex(size_ - 1) + 1; }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8subindexEm:
  789|  23.4M|    count_t subindex(size_t idx) const { return idx >> shift_; }
_ZN5immer6detail4rbts22make_empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_17empty_regular_posIT_EEPSE_:
   64|  3.00M|{
   65|  3.00M|    return {node};
   66|  3.00M|}
_ZN5immer6detail4rbts17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
   57|  3.00M|    {
   58|  3.00M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
   59|  3.00M|    }
_ZNK5immer6detail4rbts17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
   41|  3.00M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts17make_leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_12leaf_sub_posIT_EEPSE_j:
  151|   111M|{
  152|   111M|    assert(node);
  ------------------
  |  Branch (152:5): [True: 111M, False: 0]
  ------------------
  153|   111M|    assert(count <= branches<NodeT::bits_leaf>);
  ------------------
  |  Branch (153:5): [True: 111M, False: 0]
  ------------------
  154|   111M|    return {node, count};
  155|   111M|}
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  144|  80.4M|    {
  145|  80.4M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  80.4M|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
  136|  98.2M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
  135|  32.7M|    count_t count() const { return count_; }
_ZN5immer6detail4rbts19make_empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_14empty_leaf_posIT_EEPSE_:
   88|  2.81M|{
   89|  2.81M|    assert(node);
  ------------------
  |  Branch (89:5): [True: 2.81M, False: 0]
  ------------------
   90|  2.81M|    return {node};
   91|  2.81M|}
_ZN5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
   81|  2.81M|    {
   82|  2.81M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
   83|  2.81M|    }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4nodeEv:
   75|  2.81M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5countEv:
   74|  10.0k|    count_t count() const { return 0; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_DpOT0_:
 1813|   497k|    {
 1814|   497k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   497k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
 1433|  35.2M|    shift_t shift() const { return shift_; }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEj:
 1443|  17.0M|    {
 1444|  17.0M|        return size_sbh(offset, size_before(offset));
 1445|  17.0M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8size_sbhEjm:
 1448|  17.4M|    {
 1449|  17.4M|        assert(size_before_hint == size_before(offset));
  ------------------
  |  Branch (1449:9): [True: 17.4M, False: 0]
  ------------------
 1450|  17.4M|        return relaxed_->d.sizes[offset] - size_before_hint;
 1451|  17.4M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11size_beforeEj:
 1438|  65.7M|    {
 1439|  65.7M|        return offset ? relaxed_->d.sizes[offset - 1] : 0;
  ------------------
  |  Branch (1439:16): [True: 41.9M, False: 23.7M]
  ------------------
 1440|  65.7M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11last_oh_cshINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_jmDpOT0_:
 1737|   480k|    {
 1738|   480k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 480k, False: 0]
  ------------------
 1739|   480k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 480k, False: 0]
  ------------------
 1740|   480k|        auto child   = node_->inner()[offset_hint];
 1741|   480k|        auto is_leaf = shift_ == BL;
 1742|   480k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 480k]
  ------------------
 1743|   480k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|   480k|                   : visit_maybe_relaxed_sub(
 1745|   480k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|   480k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|   480k|{
 1839|   480k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 480k, False: 0]
  ------------------
 1840|   480k|    auto relaxed = node->relaxed();
 1841|   480k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 160k, False: 320k]
  ------------------
 1842|   160k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 160k, False: 0]
  ------------------
 1843|   160k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   160k|            .visit(v, std::forward<Args>(args)...);
 1845|   320k|    } else {
 1846|   320k|        return make_regular_sub_pos(node, shift, size)
 1847|   320k|            .visit(v, std::forward<Args>(args)...);
 1848|   320k|    }
 1849|   480k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_DpOT0_:
 1036|   320k|    {
 1037|   320k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   320k|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
  788|  3.39M|    count_t index(size_t idx) const { return (idx >> shift_) & mask<B>; }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_jDpOT0_:
  952|  1.02M|    {
  953|  1.02M|        return last_oh_regular(*this, v, offset_hint, args...);
  954|  1.02M|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_17push_tail_visitorISD_EEJRPSD_EEEDcOT_T0_jDpOT1_:
  677|  1.02M|{
  678|  1.02M|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 1.02M, False: 0]
  ------------------
  679|  1.02M|    constexpr auto B  = bits<Pos>;
  680|  1.02M|    constexpr auto BL = bits_leaf<Pos>;
  681|  1.02M|    auto child        = p.node()->inner()[offset_hint];
  682|  1.02M|    auto is_leaf      = p.shift() == BL;
  683|  1.02M|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 1.02M]
  ------------------
  684|  1.02M|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  1.02M|                         .visit(v, args...);
  686|  1.02M|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_DpOT0_:
  336|  3.98M|    {
  337|  3.98M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.98M|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_jDpOT0_:
  330|  2.95M|    {
  331|  2.95M|        return last_oh_regular(*this, v, offset_hint, args...);
  332|  2.95M|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_17push_tail_visitorISD_EEJRPSD_EEEDcOT_T0_jDpOT1_:
  677|  2.95M|{
  678|  2.95M|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 2.95M, False: 0]
  ------------------
  679|  2.95M|    constexpr auto B  = bits<Pos>;
  680|  2.95M|    constexpr auto BL = bits_leaf<Pos>;
  681|  2.95M|    auto child        = p.node()->inner()[offset_hint];
  682|  2.95M|    auto is_leaf      = p.shift() == BL;
  683|  2.95M|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 2.95M]
  ------------------
  684|  2.95M|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  2.95M|                         .visit(v, args...);
  686|  2.95M|}
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
 1432|   156M|    size_t size() const { return relaxed_->d.sizes[relaxed_->d.count - 1]; }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_DpOT0_:
 1036|   763k|    {
 1037|   763k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   763k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_DpOT0_:
  144|   144k|    {
  145|   144k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   144k|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
  139|  1.13M|    count_t index(size_t idx) const { return idx & mask<BL>; }
flex-vector-st.cpp:_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSJ_E_EEEDcPSJ_jmT0_DpOT1_:
 1838|   388k|{
 1839|   388k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 388k, False: 0]
  ------------------
 1840|   388k|    auto relaxed = node->relaxed();
 1841|   388k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 364k, False: 24.4k]
  ------------------
 1842|   364k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 364k, False: 0]
  ------------------
 1843|   364k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   364k|            .visit(v, std::forward<Args>(args)...);
 1845|   364k|    } else {
 1846|  24.4k|        return make_regular_sub_pos(node, shift, size)
 1847|  24.4k|            .visit(v, std::forward<Args>(args)...);
 1848|  24.4k|    }
 1849|   388k|}
flex-vector-st.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1813|   364k|    {
 1814|   364k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   364k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
 1454|  14.3M|    {
 1455|  14.3M|        auto offset = idx >> shift_;
 1456|  20.1M|        while (relaxed_->d.sizes[offset] <= idx)
  ------------------
  |  Branch (1456:16): [True: 5.80M, False: 14.3M]
  ------------------
 1457|  5.80M|            ++offset;
 1458|  14.3M|        return offset;
 1459|  14.3M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7relaxedEv:
 1435|   364k|    relaxed_t* relaxed() const { return relaxed_; }
flex-vector-st.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjDpOT0_:
 1686|   364k|    {
 1687|   364k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 364k, False: 0]
  ------------------
 1688|   364k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 34.7k, False: 329k]
  ------------------
 1689|   364k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|   364k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjmDpOT0_:
 1698|   364k|    {
 1699|   364k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|   364k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjmDpOT0_:
 1717|   364k|    {
 1718|   364k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 364k, False: 0]
  ------------------
 1719|   364k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 34.7k, False: 329k]
  |  Branch (1719:9): [True: 364k, False: 0]
  ------------------
 1720|   364k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   364k|        auto child     = node_->inner()[offset_hint];
 1722|   364k|        auto is_leaf   = shift_ == BL;
 1723|   364k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   364k|        auto next_idx  = idx - left_size_hint;
 1725|   364k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 35.6k, False: 328k]
  ------------------
 1726|   364k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  35.6k|                         .visit(v, next_idx, args...)
 1728|   364k|                   : visit_maybe_relaxed_sub(
 1729|   328k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   364k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  144|  35.6k|    {
  145|  35.6k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  35.6k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1036|  24.4k|    {
 1037|  24.4k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  24.4k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
  938|  24.4k|    {
  939|  24.4k|        return towards_oh_ch_regular(
  940|  24.4k|            *this, v, idx, offset_hint, count(), args...);
  941|  24.4k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_14update_visitorISD_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcOSL_T0_mjjDpOT1_:
  632|  24.4k|{
  633|  24.4k|    constexpr auto B  = bits<Pos>;
  634|  24.4k|    constexpr auto BL = bits_leaf<Pos>;
  635|  24.4k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 24.4k, False: 0]
  ------------------
  636|  24.4k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 24.4k, False: 0]
  ------------------
  637|  24.4k|    auto is_leaf = p.shift() == BL;
  638|  24.4k|    auto child   = p.node()->inner()[offset_hint];
  639|  24.4k|    auto is_full = offset_hint + 1 != count_hint;
  640|  24.4k|    return is_full
  ------------------
  |  Branch (640:12): [True: 14.8k, False: 9.57k]
  ------------------
  641|  24.4k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 5.67k, False: 9.18k]
  ------------------
  642|  14.8k|                          : make_full_pos(child, p.shift() - B)
  643|  9.18k|                                .visit(v, idx, args...))
  644|  24.4k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 7.33k, False: 2.23k]
  ------------------
  645|  9.57k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  9.57k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.23k|                            .visit(v, idx, args...));
  648|  24.4k|}
flex-vector-st.cpp:_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  207|  16.3k|    {
  208|  16.3k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  16.3k|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
  202|   261k|    count_t index(size_t idx) const { return idx & mask<BL>; }
flex-vector-st.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1405|  14.9k|    {
 1406|  14.9k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  14.9k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5indexEm:
 1162|   677k|    count_t index(size_t idx) const { return (idx >> shift_) & mask<B>; }
flex-vector-st.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
 1329|  14.9k|    {
 1330|  14.9k|        return towards_oh(v, idx, offset_hint, args...);
 1331|  14.9k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjDpOT0_:
 1336|  14.9k|    {
 1337|  14.9k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 14.9k, False: 0]
  ------------------
 1338|  14.9k|        auto is_leaf = shift_ == BL;
 1339|  14.9k|        auto child   = node_->inner()[offset_hint];
 1340|  14.9k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 10.1k, False: 4.88k]
  ------------------
 1341|  14.9k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  14.9k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  14.9k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  112|  8.04k|    {
  113|  8.04k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  8.04k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  336|  2.60k|    {
  337|  2.60k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  2.60k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
  316|  2.60k|    {
  317|  2.60k|        return towards_oh_ch_regular(
  318|  2.60k|            *this, v, idx, offset_hint, count(), args...);
  319|  2.60k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_14update_visitorISD_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcOSL_T0_mjjDpOT1_:
  632|  2.60k|{
  633|  2.60k|    constexpr auto B  = bits<Pos>;
  634|  2.60k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.60k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.60k, False: 0]
  ------------------
  636|  2.60k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.60k, False: 0]
  ------------------
  637|  2.60k|    auto is_leaf = p.shift() == BL;
  638|  2.60k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.60k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.60k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.52k, False: 1.08k]
  ------------------
  641|  2.60k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 603, False: 922]
  ------------------
  642|  1.52k|                          : make_full_pos(child, p.shift() - B)
  643|    922|                                .visit(v, idx, args...))
  644|  2.60k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 713, False: 369]
  ------------------
  645|  1.08k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  1.08k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    369|                            .visit(v, idx, args...));
  648|  2.60k|}
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  36.9k|{
 1839|  36.9k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 36.9k, False: 0]
  ------------------
 1840|  36.9k|    auto relaxed = node->relaxed();
 1841|  36.9k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 30.5k, False: 6.36k]
  ------------------
 1842|  30.5k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 30.5k, False: 0]
  ------------------
 1843|  30.5k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  30.5k|            .visit(v, std::forward<Args>(args)...);
 1845|  30.5k|    } else {
 1846|  6.36k|        return make_regular_sub_pos(node, shift, size)
 1847|  6.36k|            .visit(v, std::forward<Args>(args)...);
 1848|  6.36k|    }
 1849|  36.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1813|  30.5k|    {
 1814|  30.5k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  30.5k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1686|  23.3k|    {
 1687|  23.3k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 23.3k, False: 0]
  ------------------
 1688|  23.3k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 23.3k]
  ------------------
 1689|  23.3k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  23.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1698|  23.3k|    {
 1699|  23.3k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  23.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1717|  23.3k|    {
 1718|  23.3k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 23.3k, False: 0]
  ------------------
 1719|  23.3k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 23.3k]
  |  Branch (1719:9): [True: 23.3k, False: 0]
  ------------------
 1720|  23.3k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  23.3k|        auto child     = node_->inner()[offset_hint];
 1722|  23.3k|        auto is_leaf   = shift_ == BL;
 1723|  23.3k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  23.3k|        auto next_idx  = idx - left_size_hint;
 1725|  23.3k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 1.63k, False: 21.6k]
  ------------------
 1726|  23.3k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  1.63k|                         .visit(v, next_idx, args...)
 1728|  23.3k|                   : visit_maybe_relaxed_sub(
 1729|  21.6k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  23.3k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  144|  1.63k|    {
  145|  1.63k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.63k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1686|  12.1k|    {
 1687|  12.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 12.1k, False: 0]
  ------------------
 1688|  12.1k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 10.5k, False: 1.56k]
  ------------------
 1689|  12.1k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  12.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1698|  12.1k|    {
 1699|  12.1k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  12.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1717|  12.1k|    {
 1718|  12.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 12.1k, False: 0]
  ------------------
 1719|  12.1k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 10.5k, False: 1.56k]
  |  Branch (1719:9): [True: 12.1k, False: 0]
  ------------------
 1720|  12.1k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  12.1k|        auto child     = node_->inner()[offset_hint];
 1722|  12.1k|        auto is_leaf   = shift_ == BL;
 1723|  12.1k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  12.1k|        auto next_idx  = idx - left_size_hint;
 1725|  12.1k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 4.66k, False: 7.45k]
  ------------------
 1726|  12.1k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  4.66k|                         .visit(v, next_idx, args...)
 1728|  12.1k|                   : visit_maybe_relaxed_sub(
 1729|  7.45k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  12.1k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  144|  4.66k|    {
  145|  4.66k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.66k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  7.45k|{
 1839|  7.45k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 7.45k, False: 0]
  ------------------
 1840|  7.45k|    auto relaxed = node->relaxed();
 1841|  7.45k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 4.90k, False: 2.55k]
  ------------------
 1842|  4.90k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 4.90k, False: 0]
  ------------------
 1843|  4.90k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  4.90k|            .visit(v, std::forward<Args>(args)...);
 1845|  4.90k|    } else {
 1846|  2.55k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.55k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.55k|    }
 1849|  7.45k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1813|  4.90k|    {
 1814|  4.90k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  4.90k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1036|  2.55k|    {
 1037|  2.55k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.55k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  927|  5.58k|    {
  928|  5.58k|        return towards_oh_ch_regular(
  929|  5.58k|            *this, v, idx, offset_hint, count(), args...);
  930|  5.58k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb0EEEJEEEDcOT_T0_mjjDpOT1_:
  632|  5.58k|{
  633|  5.58k|    constexpr auto B  = bits<Pos>;
  634|  5.58k|    constexpr auto BL = bits_leaf<Pos>;
  635|  5.58k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 5.58k, False: 0]
  ------------------
  636|  5.58k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 5.58k, False: 0]
  ------------------
  637|  5.58k|    auto is_leaf = p.shift() == BL;
  638|  5.58k|    auto child   = p.node()->inner()[offset_hint];
  639|  5.58k|    auto is_full = offset_hint + 1 != count_hint;
  640|  5.58k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.69k, False: 3.89k]
  ------------------
  641|  5.58k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.02k, False: 672]
  ------------------
  642|  1.69k|                          : make_full_pos(child, p.shift() - B)
  643|    672|                                .visit(v, idx, args...))
  644|  5.58k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.48k, False: 2.41k]
  ------------------
  645|  3.89k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  3.89k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.41k|                            .visit(v, idx, args...));
  648|  5.58k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  207|  3.87k|    {
  208|  3.87k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  3.87k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1405|  2.01k|    {
 1406|  2.01k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.01k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1336|  3.11k|    {
 1337|  3.11k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 3.11k, False: 0]
  ------------------
 1338|  3.11k|        auto is_leaf = shift_ == BL;
 1339|  3.11k|        auto child   = node_->inner()[offset_hint];
 1340|  3.11k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 2.38k, False: 730]
  ------------------
 1341|  3.11k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  3.11k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  3.11k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
 1161|  51.3k|    shift_t shift() const { return shift_; }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  112|  2.80k|    {
  113|  2.80k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  2.80k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  336|  2.89k|    {
  337|  2.89k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  2.89k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  305|  2.89k|    {
  306|  2.89k|        return towards_oh_ch_regular(
  307|  2.89k|            *this, v, idx, offset_hint, count(), args...);
  308|  2.89k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb0EEEJEEEDcOT_T0_mjjDpOT1_:
  632|  2.89k|{
  633|  2.89k|    constexpr auto B  = bits<Pos>;
  634|  2.89k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.89k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.89k, False: 0]
  ------------------
  636|  2.89k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.89k, False: 0]
  ------------------
  637|  2.89k|    auto is_leaf = p.shift() == BL;
  638|  2.89k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.89k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.89k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.08k, False: 1.81k]
  ------------------
  641|  2.89k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 469, False: 616]
  ------------------
  642|  1.08k|                          : make_full_pos(child, p.shift() - B)
  643|    616|                                .visit(v, idx, args...))
  644|  2.89k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.32k, False: 486]
  ------------------
  645|  1.81k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  1.81k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    486|                            .visit(v, idx, args...));
  648|  2.89k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1036|  6.36k|    {
 1037|  6.36k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  6.36k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
  927|  3.33k|    {
  928|  3.33k|        return towards_oh_ch_regular(
  929|  3.33k|            *this, v, idx, offset_hint, count(), args...);
  930|  3.33k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb1EEEJEEEDcOT_T0_mjjDpOT1_:
  632|  3.33k|{
  633|  3.33k|    constexpr auto B  = bits<Pos>;
  634|  3.33k|    constexpr auto BL = bits_leaf<Pos>;
  635|  3.33k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 3.33k, False: 0]
  ------------------
  636|  3.33k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 3.33k, False: 0]
  ------------------
  637|  3.33k|    auto is_leaf = p.shift() == BL;
  638|  3.33k|    auto child   = p.node()->inner()[offset_hint];
  639|  3.33k|    auto is_full = offset_hint + 1 != count_hint;
  640|  3.33k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.51k, False: 824]
  ------------------
  641|  3.33k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 777, False: 1.73k]
  ------------------
  642|  2.51k|                          : make_full_pos(child, p.shift() - B)
  643|  1.73k|                                .visit(v, idx, args...))
  644|  3.33k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 824, False: 0]
  ------------------
  645|    824|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    824|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .visit(v, idx, args...));
  648|  3.33k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  207|  1.41k|    {
  208|  1.41k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.41k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1405|  2.01k|    {
 1406|  2.01k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.01k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1336|    925|    {
 1337|    925|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 925, False: 0]
  ------------------
 1338|    925|        auto is_leaf = shift_ == BL;
 1339|    925|        auto child   = node_->inner()[offset_hint];
 1340|    925|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 641, False: 284]
  ------------------
 1341|    925|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|    925|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|    925|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  112|    824|    {
  113|    824|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    824|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  24.8k|{
 1839|  24.8k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 24.8k, False: 0]
  ------------------
 1840|  24.8k|    auto relaxed = node->relaxed();
 1841|  24.8k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 18.3k, False: 6.47k]
  ------------------
 1842|  18.3k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 18.3k, False: 0]
  ------------------
 1843|  18.3k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  18.3k|            .visit(v, std::forward<Args>(args)...);
 1845|  18.3k|    } else {
 1846|  6.47k|        return make_regular_sub_pos(node, shift, size)
 1847|  6.47k|            .visit(v, std::forward<Args>(args)...);
 1848|  6.47k|    }
 1849|  24.8k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1813|  18.3k|    {
 1814|  18.3k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  18.3k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8subindexEm:
 1434|  4.24M|    count_t subindex(size_t idx) const { return index(idx); }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1705|  3.27k|    {
 1706|  3.27k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 3.27k, False: 0]
  ------------------
 1707|  3.27k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 2.91k, False: 361]
  ------------------
 1708|  3.27k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  3.27k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1717|  3.27k|    {
 1718|  3.27k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 3.27k, False: 0]
  ------------------
 1719|  3.27k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 2.91k, False: 361]
  |  Branch (1719:9): [True: 3.27k, False: 0]
  ------------------
 1720|  3.27k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  3.27k|        auto child     = node_->inner()[offset_hint];
 1722|  3.27k|        auto is_leaf   = shift_ == BL;
 1723|  3.27k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  3.27k|        auto next_idx  = idx - left_size_hint;
 1725|  3.27k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 3.27k]
  ------------------
 1726|  3.27k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  3.27k|                   : visit_maybe_relaxed_sub(
 1729|  3.27k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  3.27k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1705|  84.0k|    {
 1706|  84.0k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 84.0k, False: 0]
  ------------------
 1707|  84.0k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 24.4k, False: 59.6k]
  ------------------
 1708|  84.0k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  84.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1717|  84.0k|    {
 1718|  84.0k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 84.0k, False: 0]
  ------------------
 1719|  84.0k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 24.4k, False: 59.6k]
  |  Branch (1719:9): [True: 84.0k, False: 0]
  ------------------
 1720|  84.0k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  84.0k|        auto child     = node_->inner()[offset_hint];
 1722|  84.0k|        auto is_leaf   = shift_ == BL;
 1723|  84.0k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  84.0k|        auto next_idx  = idx - left_size_hint;
 1725|  84.0k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 14.0k, False: 69.9k]
  ------------------
 1726|  84.0k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  14.0k|                         .visit(v, next_idx, args...)
 1728|  84.0k|                   : visit_maybe_relaxed_sub(
 1729|  69.9k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  84.0k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  144|  14.0k|    {
  145|  14.0k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  14.0k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  69.9k|{
 1839|  69.9k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 69.9k, False: 0]
  ------------------
 1840|  69.9k|    auto relaxed = node->relaxed();
 1841|  69.9k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 68.9k, False: 984]
  ------------------
 1842|  68.9k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 68.9k, False: 0]
  ------------------
 1843|  68.9k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  68.9k|            .visit(v, std::forward<Args>(args)...);
 1845|  68.9k|    } else {
 1846|    984|        return make_regular_sub_pos(node, shift, size)
 1847|    984|            .visit(v, std::forward<Args>(args)...);
 1848|    984|    }
 1849|  69.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1813|  68.9k|    {
 1814|  68.9k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  68.9k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1036|    984|    {
 1037|    984|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    984|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11size_beforeEj:
  791|  1.60M|    {
  792|  1.60M|        return size_t{offset} << shift_;
  793|  1.60M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8size_sbhEjm:
  803|  20.7k|    {
  804|  20.7k|        assert(size_before_hint == size_before(offset));
  ------------------
  |  Branch (804:9): [True: 20.7k, False: 0]
  ------------------
  805|  20.7k|        return offset == subindex(size_ - 1) ? size_ - size_before_hint
  ------------------
  |  Branch (805:16): [True: 11.0k, False: 9.78k]
  ------------------
  806|  20.7k|                                             : size_t{1} << shift_;
  807|  20.7k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  946|  6.68k|    {
  947|  6.68k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  6.68k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_18slice_left_visitorISD_Lb0EEEJEEEDcOT_T0_mjDpOT1_:
  653|  6.68k|{
  654|  6.68k|    constexpr auto B  = bits<Pos>;
  655|  6.68k|    constexpr auto BL = bits_leaf<Pos>;
  656|  6.68k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 6.68k, False: 0]
  ------------------
  657|  6.68k|    auto is_leaf = p.shift() == BL;
  658|  6.68k|    auto child   = p.node()->inner()[offset_hint];
  659|  6.68k|    auto lsize   = offset_hint << p.shift();
  660|  6.68k|    auto size    = p.this_size();
  661|  6.68k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  6.68k|    return is_full
  ------------------
  |  Branch (662:12): [True: 6.68k, False: 0]
  ------------------
  663|  6.68k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 3.99k, False: 2.68k]
  ------------------
  664|  6.68k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  6.68k|                      : make_full_pos(child, p.shift() - B)
  666|  2.68k|                            .visit(v, idx - lsize, args...))
  667|  6.68k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 0]
  ------------------
  668|      0|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|      0|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|      0|                            .visit(v, idx - lsize, args...));
  672|  6.68k|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9this_sizeEv:
  794|  20.7k|    size_t this_size() const { return size_; }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJmEEEDcT_DpOT0_:
  207|  7.46k|    {
  208|  7.46k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  7.46k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJmEEEDcT_DpOT0_:
 1405|  4.07k|    {
 1406|  4.07k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  4.07k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8subindexEm:
 1163|  10.3k|    count_t subindex(size_t idx) const { return idx >> shift_; }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11size_beforeEj:
 1170|  36.6k|    {
 1171|  36.6k|        return size_t{offset} << shift_;
 1172|  36.6k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8size_sbhEjm:
 1166|  10.3k|    {
 1167|  10.3k|        return size_t{1} << shift_;
 1168|  10.3k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1348|  4.85k|    {
 1349|  4.85k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1349:9): [True: 4.85k, False: 0]
  ------------------
 1350|  4.85k|        auto is_leaf = shift_ == BL;
 1351|  4.85k|        auto child   = node_->inner()[offset_hint];
 1352|  4.85k|        auto lsize   = size_t{offset_hint} << shift_;
 1353|  4.85k|        return is_leaf
  ------------------
  |  Branch (1353:16): [True: 3.46k, False: 1.38k]
  ------------------
 1354|  4.85k|                   ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
 1355|  4.85k|                   : make_full_pos(child, shift_ - B)
 1356|  1.38k|                         .visit(v, idx - lsize, args...);
 1357|  4.85k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
 1175|  10.3k|    {
 1176|  10.3k|        auto e = sizes + n;
 1177|  55.2k|        for (; sizes != e; ++sizes) {
  ------------------
  |  Branch (1177:16): [True: 44.9k, False: 10.3k]
  ------------------
 1178|  44.9k|            init = *sizes = init + (size_t{1} << shift_);
 1179|       |            assert(init);
  ------------------
  |  Branch (1179:13): [True: 44.9k, False: 0]
  ------------------
 1180|  44.9k|        }
 1181|  10.3k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
 1160|   578k|    size_t size() const { return branches<B, size_t> << shift_; }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
  810|  3.08M|    {
  811|  3.08M|        if (n) {
  ------------------
  |  Branch (811:13): [True: 3.07M, False: 5.06k]
  ------------------
  812|  3.07M|            auto last = offset + n - 1;
  813|  3.07M|            auto e    = sizes + n - 1;
  814|  12.2M|            for (; sizes != e; ++sizes) {
  ------------------
  |  Branch (814:20): [True: 9.22M, False: 3.07M]
  ------------------
  815|  9.22M|                init = *sizes = init + (size_t{1} << shift_);
  816|  9.22M|                assert(init);
  ------------------
  |  Branch (816:17): [True: 9.22M, False: 0]
  ------------------
  817|  9.22M|            }
  818|  3.07M|            *sizes = init + size(last);
  819|       |            assert(*sizes);
  ------------------
  |  Branch (819:13): [True: 3.07M, False: 0]
  ------------------
  820|  3.07M|        }
  821|  3.08M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEj:
  797|  3.09M|    {
  798|  3.09M|        return offset == subindex(size_ - 1) ? size_ - size_before(offset)
  ------------------
  |  Branch (798:16): [True: 1.54M, False: 1.54M]
  ------------------
  799|  3.09M|                                             : size_t{1} << shift_;
  800|  3.09M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
 1462|  30.5M|    {
 1463|  30.5M|        auto e     = sizes + n;
 1464|  30.5M|        auto prev  = size_before(offset);
 1465|  30.5M|        auto these = relaxed_->d.sizes + offset;
 1466|   139M|        for (; sizes != e; ++sizes, ++these) {
  ------------------
  |  Branch (1466:16): [True: 109M, False: 30.5M]
  ------------------
 1467|   109M|            auto this_size = *these;
 1468|   109M|            init = *sizes = init + (this_size - prev);
 1469|   109M|            assert(init);
  ------------------
  |  Branch (1469:13): [True: 109M, False: 0]
  ------------------
 1470|   109M|            prev = this_size;
 1471|   109M|        }
 1472|  30.5M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1036|  6.47k|    {
 1037|  6.47k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  6.47k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
  946|  2.48k|    {
  947|  2.48k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  2.48k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_18slice_left_visitorISD_Lb1EEEJEEEDcOT_T0_mjDpOT1_:
  653|  2.48k|{
  654|  2.48k|    constexpr auto B  = bits<Pos>;
  655|  2.48k|    constexpr auto BL = bits_leaf<Pos>;
  656|  2.48k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 2.48k, False: 0]
  ------------------
  657|  2.48k|    auto is_leaf = p.shift() == BL;
  658|  2.48k|    auto child   = p.node()->inner()[offset_hint];
  659|  2.48k|    auto lsize   = offset_hint << p.shift();
  660|  2.48k|    auto size    = p.this_size();
  661|  2.48k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  2.48k|    return is_full
  ------------------
  |  Branch (662:12): [True: 778, False: 1.70k]
  ------------------
  663|  2.48k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 0, False: 778]
  ------------------
  664|    778|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|    778|                      : make_full_pos(child, p.shift() - B)
  666|    778|                            .visit(v, idx - lsize, args...))
  667|  2.48k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 1.70k]
  ------------------
  668|  1.70k|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|  1.70k|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|  1.70k|                            .visit(v, idx - lsize, args...));
  672|  2.48k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJmEEEDcT_DpOT0_:
 1405|    778|    {
 1406|    778|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    778|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJmEEEDcT_DpOT0_:
 1036|  1.70k|    {
 1037|  1.70k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.70k|    }
_ZN5immer6detail4rbts30make_singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEDaPT_j:
  766|  10.0k|{
  767|  10.0k|    assert(leaf);
  ------------------
  |  Branch (767:5): [True: 10.0k, False: 0]
  ------------------
  768|  10.0k|    IMMER_ASSERT_TAGGED(leaf->kind() == NodeT::kind_t::leaf);
  ------------------
  |  |   68|  10.0k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (768:5): [True: 10.0k, False: 0]
  ------------------
  769|  10.0k|    assert(count > 0);
  ------------------
  |  Branch (769:5): [True: 10.0k, False: 0]
  ------------------
  770|  10.0k|    return singleton_regular_sub_pos<NodeT>{leaf, count};
  771|  10.0k|}
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_14empty_leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
  759|  10.0k|    {
  760|  10.0k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  761|  10.0k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  10.0k|{
 1839|  10.0k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 10.0k, False: 0]
  ------------------
 1840|  10.0k|    auto relaxed = node->relaxed();
 1841|  10.0k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 7.28k, False: 2.75k]
  ------------------
 1842|  7.28k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 7.28k, False: 0]
  ------------------
 1843|  7.28k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  7.28k|            .visit(v, std::forward<Args>(args)...);
 1845|  7.28k|    } else {
 1846|  2.75k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.75k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.75k|    }
 1849|  10.0k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  7.28k|    {
 1814|  7.28k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  7.28k|    }
_ZNK5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  735|  32.5k|    shift_t shift() const { return BL; }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  744|  10.0k|    {
  745|  10.0k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
  144|  13.3M|    {
  145|  13.3M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  13.3M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1813|   155M|    {
 1814|   155M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   155M|    }
_ZN5immer6detail4rbts12null_sub_pos14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  707|  3.62M|    {
  708|  3.62M|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  744|  10.0k|    {
  745|  10.0k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
  144|  13.3M|    {
  145|  13.3M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  13.3M|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
  137|  13.3M|    size_t size() const { return count_; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1813|   155M|    {
 1814|   155M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   155M|    }
_ZN5immer6detail4rbts12null_sub_pos14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEEvT_DpOT0_:
  707|  3.62M|    {
  708|  3.62M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  21.5k|    {
 1763|  21.5k|        auto child      = node_->inner()[0];
 1764|  21.5k|        auto child_size = relaxed_->d.sizes[0];
 1765|  21.5k|        auto is_leaf    = shift_ == BL;
 1766|  21.5k|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 21.5k, False: 0]
  ------------------
 1767|  21.5k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 21.5k]
  ------------------
 1768|  21.5k|                       : visit_maybe_relaxed_sub(
 1769|  21.5k|                             child, shift_ - B, child_size, v, args...);
 1770|  21.5k|    }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
   76|  10.0k|    shift_t shift() const { return 0; }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  138|  5.20M|    shift_t shift() const { return 0; }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  21.5k|{
 1839|  21.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 21.5k, False: 0]
  ------------------
 1840|  21.5k|    auto relaxed = node->relaxed();
 1841|  21.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 21.2k, False: 310]
  ------------------
 1842|  21.2k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 21.2k, False: 0]
  ------------------
 1843|  21.2k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  21.2k|            .visit(v, std::forward<Args>(args)...);
 1845|  21.2k|    } else {
 1846|    310|        return make_regular_sub_pos(node, shift, size)
 1847|    310|            .visit(v, std::forward<Args>(args)...);
 1848|    310|    }
 1849|  21.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  21.2k|    {
 1814|  21.2k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  21.2k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1036|    310|    {
 1037|    310|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    310|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  970|    619|    {
  971|    619|        auto is_leaf = shift_ == BL;
  972|    619|        auto child   = node_->inner()[0];
  973|    619|        auto is_full = size_ >= (size_t{1} << shift_);
  974|    619|        return is_full
  ------------------
  |  Branch (974:16): [True: 619, False: 0]
  ------------------
  975|    619|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 619]
  ------------------
  976|    619|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|    619|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|    619|                   : (is_leaf
  ------------------
  |  Branch (978:23): [True: 0, False: 0]
  ------------------
  979|      0|                          ? make_leaf_sub_pos(child, size_).visit(v, args...)
  980|      0|                          : make_regular_sub_pos(child, shift_ - B, size_)
  981|      0|                                .visit(v, args...));
  982|    619|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  201|   347k|    shift_t shift() const { return 0; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1405|    945|    {
 1406|    945|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    945|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1361|    326|    {
 1362|    326|        auto is_leaf = shift_ == BL;
 1363|    326|        auto child   = node_->inner()[0];
 1364|    326|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 326]
  ------------------
 1365|    326|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|    326|    }
_ZN5immer6detail4rbts12null_sub_pos13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  711|   205k|    {
  712|   205k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1304|  20.5k|    {
 1305|  20.5k|        each_i(v, 1, branches<B>, args...);
 1306|  20.5k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE6each_iINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jjDpOT0_:
 1263|  20.5k|    {
 1264|  20.5k|        auto p = node_->inner() + i;
 1265|  20.5k|        auto e = node_->inner() + n;
 1266|  20.5k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 11.7k, False: 8.78k]
  ------------------
 1267|  94.3k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 82.5k, False: 11.7k]
  ------------------
 1268|  82.5k|                IMMER_PREFETCH(p + 1);
 1269|  82.5k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|  82.5k|            }
 1271|  11.7k|        } else {
 1272|  8.78k|            auto ss = shift_ - B;
 1273|  70.2k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 61.4k, False: 8.78k]
  ------------------
 1274|  61.4k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  8.78k|        }
 1276|  20.5k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
  207|  4.77M|    {
  208|  4.77M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  4.77M|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1405|   574k|    {
 1406|   574k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   574k|    }
_ZN5immer6detail4rbts12null_sub_pos13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEEEEvT_DpOT0_:
  711|   205k|    {
  712|   205k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1304|  20.5k|    {
 1305|  20.5k|        each_i(v, 1, branches<B>, args...);
 1306|  20.5k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE6each_iINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jjDpOT0_:
 1263|  20.5k|    {
 1264|  20.5k|        auto p = node_->inner() + i;
 1265|  20.5k|        auto e = node_->inner() + n;
 1266|  20.5k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 11.7k, False: 8.78k]
  ------------------
 1267|  94.3k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 82.5k, False: 11.7k]
  ------------------
 1268|  82.5k|                IMMER_PREFETCH(p + 1);
 1269|  82.5k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|  82.5k|            }
 1271|  11.7k|        } else {
 1272|  8.78k|            auto ss = shift_ - B;
 1273|  70.2k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 61.4k, False: 8.78k]
  ------------------
 1274|  61.4k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  8.78k|        }
 1276|  20.5k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
  207|  4.77M|    {
  208|  4.77M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  4.77M|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE4sizeEv:
  200|  4.77M|    size_t size() const { return branches<BL>; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1405|   574k|    {
 1406|   574k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   574k|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  753|    619|    {
  754|    619|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|    619|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  144|    619|    {
  145|    619|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    619|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1370|    619|    {
 1371|    619|        assert(shift_ == BL);
  ------------------
  |  Branch (1371:9): [True: 619, False: 0]
  ------------------
 1372|    619|        auto child = node_->inner()[0];
 1373|    619|        return make_full_leaf_pos(child).visit(v, args...);
 1374|    619|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  207|  3.06k|    {
  208|  3.06k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  3.06k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  906|   347k|    {
  907|   347k|        if (count() > 1)
  ------------------
  |  Branch (907:13): [True: 327k, False: 19.4k]
  ------------------
  908|   327k|            each_right_sub_(v, 1, args...);
  909|   347k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE15each_right_sub_INS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
  879|   327k|    {
  880|   327k|        auto last  = count() - 1;
  881|   327k|        auto lsize = size_ - (last << shift_);
  882|   327k|        auto n     = node()->inner() + i;
  883|   327k|        auto e     = node()->inner() + last;
  884|   327k|        if (shift() == BL) {
  ------------------
  |  Branch (884:13): [True: 316k, False: 11.7k]
  ------------------
  885|  2.19M|            for (; n != e; ++n) {
  ------------------
  |  Branch (885:20): [True: 1.87M, False: 316k]
  ------------------
  886|  1.87M|                IMMER_PREFETCH(n + 1);
  887|  1.87M|                make_full_leaf_pos(*n).visit(v, args...);
  888|  1.87M|            }
  889|   316k|            make_leaf_sub_pos(*n, lsize).visit(v, args...);
  890|   316k|        } else {
  891|  11.7k|            auto ss = shift_ - B;
  892|  44.1k|            for (; n != e; ++n)
  ------------------
  |  Branch (892:20): [True: 32.3k, False: 11.7k]
  ------------------
  893|  32.3k|                make_full_pos(*n, ss).visit(v, args...);
  894|  11.7k|            make_regular_sub_pos(*n, ss, lsize).visit(v, args...);
  895|  11.7k|        }
  896|   327k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1036|  3.48M|    {
 1037|  3.48M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.48M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  906|   347k|    {
  907|   347k|        if (count() > 1)
  ------------------
  |  Branch (907:13): [True: 327k, False: 19.4k]
  ------------------
  908|   327k|            each_right_sub_(v, 1, args...);
  909|   347k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE15each_right_sub_INS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
  879|   327k|    {
  880|   327k|        auto last  = count() - 1;
  881|   327k|        auto lsize = size_ - (last << shift_);
  882|   327k|        auto n     = node()->inner() + i;
  883|   327k|        auto e     = node()->inner() + last;
  884|   327k|        if (shift() == BL) {
  ------------------
  |  Branch (884:13): [True: 316k, False: 11.7k]
  ------------------
  885|  2.19M|            for (; n != e; ++n) {
  ------------------
  |  Branch (885:20): [True: 1.87M, False: 316k]
  ------------------
  886|  1.87M|                IMMER_PREFETCH(n + 1);
  887|  1.87M|                make_full_leaf_pos(*n).visit(v, args...);
  888|  1.87M|            }
  889|   316k|            make_leaf_sub_pos(*n, lsize).visit(v, args...);
  890|   316k|        } else {
  891|  11.7k|            auto ss = shift_ - B;
  892|  44.1k|            for (; n != e; ++n)
  ------------------
  |  Branch (892:20): [True: 32.3k, False: 11.7k]
  ------------------
  893|  32.3k|                make_full_pos(*n, ss).visit(v, args...);
  894|  11.7k|            make_regular_sub_pos(*n, ss, lsize).visit(v, args...);
  895|  11.7k|        }
  896|   327k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1036|  3.48M|    {
 1037|  3.48M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.48M|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  753|  2.44k|    {
  754|  2.44k|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|  2.44k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  144|  2.44k|    {
  145|  2.44k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  2.44k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  986|  2.44k|    {
  987|  2.44k|        assert(shift_ == BL);
  ------------------
  |  Branch (987:9): [True: 2.44k, False: 0]
  ------------------
  988|  2.44k|        auto child   = node_->inner()[0];
  989|  2.44k|        auto is_full = size_ >= branches<BL>;
  990|  2.44k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (990:16): [True: 2.44k, False: 0]
  ------------------
  991|  2.44k|                       : make_leaf_sub_pos(child, size_).visit(v, args...);
  992|  2.44k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  144|  6.97k|    {
  145|  6.97k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  6.97k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1647|  13.2M|    {
 1648|  13.2M|        each_right(v, 1, std::forward<Args>(args)...);
 1649|  13.2M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
 1653|  13.2M|    {
 1654|  13.2M|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 13.2M, False: 0]
  ------------------
 1655|  13.2M|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 13.2M, False: 0]
  ------------------
 1656|  13.2M|        auto s = relaxed_->d.sizes[start - 1];
 1657|  13.2M|        auto p = node_->inner();
 1658|  13.2M|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 1.03M, False: 12.2M]
  ------------------
 1659|  6.01M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 4.97M, False: 1.03M]
  ------------------
 1660|  4.97M|                IMMER_PREFETCH(p + i + 1);
 1661|  4.97M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  4.97M|                    .visit(v, args...);
 1663|  4.97M|                s = relaxed_->d.sizes[i];
 1664|  4.97M|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 4.97M, False: 0]
  ------------------
 1665|  4.97M|            }
 1666|  12.2M|        } else {
 1667|  12.2M|            auto ss = shift_ - B;
 1668|  89.1M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 76.8M, False: 12.2M]
  ------------------
 1669|  76.8M|                visit_maybe_relaxed_sub(
 1670|  76.8M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|  76.8M|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 76.8M, False: 0]
  ------------------
 1673|  76.8M|            }
 1674|  12.2M|        }
 1675|  13.2M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcPT_jmT0_DpOT1_:
 1838|   131M|{
 1839|   131M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 131M, False: 0]
  ------------------
 1840|   131M|    auto relaxed = node->relaxed();
 1841|   131M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 127M, False: 3.46M]
  ------------------
 1842|   127M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 127M, False: 0]
  ------------------
 1843|   127M|        return make_relaxed_pos(node, shift, relaxed)
 1844|   127M|            .visit(v, std::forward<Args>(args)...);
 1845|   127M|    } else {
 1846|  3.46M|        return make_regular_sub_pos(node, shift, size)
 1847|  3.46M|            .visit(v, std::forward<Args>(args)...);
 1848|  3.46M|    }
 1849|   131M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1647|  13.2M|    {
 1648|  13.2M|        each_right(v, 1, std::forward<Args>(args)...);
 1649|  13.2M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
 1653|  13.2M|    {
 1654|  13.2M|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 13.2M, False: 0]
  ------------------
 1655|  13.2M|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 13.2M, False: 0]
  ------------------
 1656|  13.2M|        auto s = relaxed_->d.sizes[start - 1];
 1657|  13.2M|        auto p = node_->inner();
 1658|  13.2M|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 1.03M, False: 12.2M]
  ------------------
 1659|  6.01M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 4.97M, False: 1.03M]
  ------------------
 1660|  4.97M|                IMMER_PREFETCH(p + i + 1);
 1661|  4.97M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  4.97M|                    .visit(v, args...);
 1663|  4.97M|                s = relaxed_->d.sizes[i];
 1664|  4.97M|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 4.97M, False: 0]
  ------------------
 1665|  4.97M|            }
 1666|  12.2M|        } else {
 1667|  12.2M|            auto ss = shift_ - B;
 1668|  89.1M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 76.8M, False: 12.2M]
  ------------------
 1669|  76.8M|                visit_maybe_relaxed_sub(
 1670|  76.8M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|  76.8M|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 76.8M, False: 0]
  ------------------
 1673|  76.8M|            }
 1674|  12.2M|        }
 1675|  13.2M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|   131M|{
 1839|   131M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 131M, False: 0]
  ------------------
 1840|   131M|    auto relaxed = node->relaxed();
 1841|   131M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 127M, False: 3.46M]
  ------------------
 1842|   127M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 127M, False: 0]
  ------------------
 1843|   127M|        return make_relaxed_pos(node, shift, relaxed)
 1844|   127M|            .visit(v, std::forward<Args>(args)...);
 1845|   127M|    } else {
 1846|  3.46M|        return make_regular_sub_pos(node, shift, size)
 1847|  3.46M|            .visit(v, std::forward<Args>(args)...);
 1848|  3.46M|    }
 1849|   131M|}
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  753|  6.97k|    {
  754|  6.97k|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|  6.97k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  144|  6.97k|    {
  145|  6.97k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  6.97k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1774|  6.97k|    {
 1775|  6.97k|        assert(shift_ == BL);
  ------------------
  |  Branch (1775:9): [True: 6.97k, False: 0]
  ------------------
 1776|  6.97k|        auto child      = node_->inner()[0];
 1777|  6.97k|        auto child_size = relaxed_->d.sizes[0];
 1778|  6.97k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1779|  6.97k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  2.75k|    {
 1037|  2.75k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.75k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcPT_jmT0_DpOT1_:
 1838|  1.37M|{
 1839|  1.37M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.37M, False: 0]
  ------------------
 1840|  1.37M|    auto relaxed = node->relaxed();
 1841|  1.37M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.35M, False: 23.2k]
  ------------------
 1842|  1.35M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.35M, False: 0]
  ------------------
 1843|  1.35M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.35M|            .visit(v, std::forward<Args>(args)...);
 1845|  1.35M|    } else {
 1846|  23.2k|        return make_regular_sub_pos(node, shift, size)
 1847|  23.2k|            .visit(v, std::forward<Args>(args)...);
 1848|  23.2k|    }
 1849|  1.37M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
 1813|  1.35M|    {
 1814|  1.35M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.35M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  1.35M|{
 1839|  1.35M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.35M, False: 0]
  ------------------
 1840|  1.35M|    auto relaxed = node->relaxed();
 1841|  1.35M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.34M, False: 11.0k]
  ------------------
 1842|  1.34M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.34M, False: 0]
  ------------------
 1843|  1.34M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.34M|            .visit(v, std::forward<Args>(args)...);
 1845|  1.34M|    } else {
 1846|  11.0k|        return make_regular_sub_pos(node, shift, size)
 1847|  11.0k|            .visit(v, std::forward<Args>(args)...);
 1848|  11.0k|    }
 1849|  1.35M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  1.34M|    {
 1814|  1.34M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.34M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1750|  3.59M|    {
 1751|  3.59M|        auto offset     = relaxed_->d.count - 1;
 1752|  3.59M|        auto child      = node_->inner()[offset];
 1753|  3.59M|        auto child_size = size(offset);
 1754|  3.59M|        auto is_leaf    = shift_ == BL;
 1755|  3.59M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 0, False: 3.59M]
  ------------------
 1756|  3.59M|                       : visit_maybe_relaxed_sub(
 1757|  3.59M|                             child, shift_ - B, child_size, v, args...);
 1758|  3.59M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  3.59M|{
 1839|  3.59M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 3.59M, False: 0]
  ------------------
 1840|  3.59M|    auto relaxed = node->relaxed();
 1841|  3.59M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 3.59M, False: 2.14k]
  ------------------
 1842|  3.59M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 3.59M, False: 0]
  ------------------
 1843|  3.59M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  3.59M|            .visit(v, std::forward<Args>(args)...);
 1845|  3.59M|    } else {
 1846|  2.14k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.14k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.14k|    }
 1849|  3.59M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1813|  3.59M|    {
 1814|  3.59M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  3.59M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
 1036|  4.70k|    {
 1037|  4.70k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.70k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  958|  2.56k|    {
  959|  2.56k|        auto offset  = count() - 1;
  960|  2.56k|        auto child   = node_->inner()[offset];
  961|  2.56k|        auto is_leaf = shift_ == BL;
  962|  2.56k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  2.56k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 0, False: 2.56k]
  ------------------
  964|  2.56k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  2.56k|                             .visit(v, args...);
  966|  2.56k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  913|  1.51M|    {
  914|  1.51M|        each_left(v, count() - 1, args...);
  915|  1.51M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
  873|  1.51M|    {
  874|  1.51M|        return each_left_regular(*this, v, last, args...);
  875|  1.51M|    }
_ZN5immer6detail4rbts17each_left_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvOT_T0_jDpOT1_:
  575|  1.51M|{
  576|  1.51M|    constexpr auto B  = bits<Pos>;
  577|  1.51M|    constexpr auto BL = bits_leaf<Pos>;
  578|  1.51M|    assert(last < p.count());
  ------------------
  |  Branch (578:5): [True: 1.51M, False: 0]
  ------------------
  579|  1.51M|    if (p.shift() == BL) {
  ------------------
  |  Branch (579:9): [True: 759k, False: 757k]
  ------------------
  580|   759k|        auto n = p.node()->inner();
  581|   759k|        auto e = n + last;
  582|  3.56M|        for (; n != e; ++n) {
  ------------------
  |  Branch (582:16): [True: 2.80M, False: 759k]
  ------------------
  583|  2.80M|            IMMER_PREFETCH(n + 1);
  584|  2.80M|            make_full_leaf_pos(*n).visit(v, args...);
  585|  2.80M|        }
  586|   759k|    } else {
  587|   757k|        auto n  = p.node()->inner();
  588|   757k|        auto e  = n + last;
  589|   757k|        auto ss = p.shift() - B;
  590|  1.23M|        for (; n != e; ++n)
  ------------------
  |  Branch (590:16): [True: 480k, False: 757k]
  ------------------
  591|   480k|            make_full_pos(*n, ss).visit(v, args...);
  592|   757k|    }
  593|  1.51M|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  913|  1.51M|    {
  914|  1.51M|        each_left(v, count() - 1, args...);
  915|  1.51M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
  873|  1.51M|    {
  874|  1.51M|        return each_left_regular(*this, v, last, args...);
  875|  1.51M|    }
_ZN5immer6detail4rbts17each_left_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21concat_merger_visitorEJRNS1_13concat_mergerISD_EEEEEvOT_T0_jDpOT1_:
  575|  1.51M|{
  576|  1.51M|    constexpr auto B  = bits<Pos>;
  577|  1.51M|    constexpr auto BL = bits_leaf<Pos>;
  578|  1.51M|    assert(last < p.count());
  ------------------
  |  Branch (578:5): [True: 1.51M, False: 0]
  ------------------
  579|  1.51M|    if (p.shift() == BL) {
  ------------------
  |  Branch (579:9): [True: 759k, False: 757k]
  ------------------
  580|   759k|        auto n = p.node()->inner();
  581|   759k|        auto e = n + last;
  582|  3.56M|        for (; n != e; ++n) {
  ------------------
  |  Branch (582:16): [True: 2.80M, False: 759k]
  ------------------
  583|  2.80M|            IMMER_PREFETCH(n + 1);
  584|  2.80M|            make_full_leaf_pos(*n).visit(v, args...);
  585|  2.80M|        }
  586|   759k|    } else {
  587|   757k|        auto n  = p.node()->inner();
  588|   757k|        auto e  = n + last;
  589|   757k|        auto ss = p.shift() - B;
  590|  1.23M|        for (; n != e; ++n)
  ------------------
  |  Branch (590:16): [True: 480k, False: 757k]
  ------------------
  591|   480k|            make_full_pos(*n, ss).visit(v, args...);
  592|   757k|    }
  593|  1.51M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  1.47M|    {
 1763|  1.47M|        auto child      = node_->inner()[0];
 1764|  1.47M|        auto child_size = relaxed_->d.sizes[0];
 1765|  1.47M|        auto is_leaf    = shift_ == BL;
 1766|  1.47M|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 1.47M, False: 0]
  ------------------
 1767|  1.47M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 1.47M]
  ------------------
 1768|  1.47M|                       : visit_maybe_relaxed_sub(
 1769|  1.47M|                             child, shift_ - B, child_size, v, args...);
 1770|  1.47M|    }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5shiftEv:
  106|  1.37M|    shift_t shift() const { return 0; }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  1.47M|{
 1839|  1.47M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.47M, False: 0]
  ------------------
 1840|  1.47M|    auto relaxed = node->relaxed();
 1841|  1.47M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.16M, False: 314k]
  ------------------
 1842|  1.16M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.16M, False: 0]
  ------------------
 1843|  1.16M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.16M|            .visit(v, std::forward<Args>(args)...);
 1845|  1.16M|    } else {
 1846|   314k|        return make_regular_sub_pos(node, shift, size)
 1847|   314k|            .visit(v, std::forward<Args>(args)...);
 1848|   314k|    }
 1849|  1.47M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  1.16M|    {
 1814|  1.16M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.16M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|   314k|    {
 1037|   314k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   314k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
  958|  1.26k|    {
  959|  1.26k|        auto offset  = count() - 1;
  960|  1.26k|        auto child   = node_->inner()[offset];
  961|  1.26k|        auto is_leaf = shift_ == BL;
  962|  1.26k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  1.26k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 0, False: 1.26k]
  ------------------
  964|  1.26k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  1.26k|                             .visit(v, args...);
  966|  1.26k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1036|  1.81k|    {
 1037|  1.81k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.81k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  970|  9.58k|    {
  971|  9.58k|        auto is_leaf = shift_ == BL;
  972|  9.58k|        auto child   = node_->inner()[0];
  973|  9.58k|        auto is_full = size_ >= (size_t{1} << shift_);
  974|  9.58k|        return is_full
  ------------------
  |  Branch (974:16): [True: 9.58k, False: 0]
  ------------------
  975|  9.58k|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 9.58k]
  ------------------
  976|  9.58k|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|  9.58k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|  9.58k|                   : (is_leaf
  ------------------
  |  Branch (978:23): [True: 0, False: 0]
  ------------------
  979|      0|                          ? make_leaf_sub_pos(child, size_).visit(v, args...)
  980|      0|                          : make_regular_sub_pos(child, shift_ - B, size_)
  981|      0|                                .visit(v, args...));
  982|  9.58k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1405|  17.2k|    {
 1406|  17.2k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  17.2k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1361|  7.70k|    {
 1362|  7.70k|        auto is_leaf = shift_ == BL;
 1363|  7.70k|        auto child   = node_->inner()[0];
 1364|  7.70k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 7.70k]
  ------------------
 1365|  7.70k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|  7.70k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  958|  17.0k|    {
  959|  17.0k|        auto offset  = count() - 1;
  960|  17.0k|        auto child   = node_->inner()[offset];
  961|  17.0k|        auto is_leaf = shift_ == BL;
  962|  17.0k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  17.0k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 9.79k, False: 7.26k]
  ------------------
  964|  17.0k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  7.26k|                             .visit(v, args...);
  966|  17.0k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  144|  11.1k|    {
  145|  11.1k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  11.1k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1370|  11.1k|    {
 1371|  11.1k|        assert(shift_ == BL);
  ------------------
  |  Branch (1371:9): [True: 11.1k, False: 0]
  ------------------
 1372|  11.1k|        auto child = node_->inner()[0];
 1373|  11.1k|        return make_full_leaf_pos(child).visit(v, args...);
 1374|  11.1k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  207|   344k|    {
  208|   344k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   344k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1036|  7.46k|    {
 1037|  7.46k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  7.46k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
  958|   331k|    {
  959|   331k|        auto offset  = count() - 1;
  960|   331k|        auto child   = node_->inner()[offset];
  961|   331k|        auto is_leaf = shift_ == BL;
  962|   331k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|   331k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 326k, False: 5.64k]
  ------------------
  964|   331k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  5.64k|                             .visit(v, args...);
  966|   331k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  144|   333k|    {
  145|   333k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   333k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  986|   333k|    {
  987|   333k|        assert(shift_ == BL);
  ------------------
  |  Branch (987:9): [True: 333k, False: 0]
  ------------------
  988|   333k|        auto child   = node_->inner()[0];
  989|   333k|        auto is_full = size_ >= branches<BL>;
  990|   333k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (990:16): [True: 333k, False: 0]
  ------------------
  991|   333k|                       : make_leaf_sub_pos(child, size_).visit(v, args...);
  992|   333k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  144|  1.03M|    {
  145|  1.03M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.03M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1036|  8.87k|    {
 1037|  8.87k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  8.87k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  958|  1.16M|    {
  959|  1.16M|        auto offset  = count() - 1;
  960|  1.16M|        auto child   = node_->inner()[offset];
  961|  1.16M|        auto is_leaf = shift_ == BL;
  962|  1.16M|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  1.16M|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 423k, False: 741k]
  ------------------
  964|  1.16M|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|   741k|                             .visit(v, args...);
  966|  1.16M|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  144|  1.03M|    {
  145|  1.03M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.03M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1774|  1.03M|    {
 1775|  1.03M|        assert(shift_ == BL);
  ------------------
  |  Branch (1775:9): [True: 1.03M, False: 0]
  ------------------
 1776|  1.03M|        auto child      = node_->inner()[0];
 1777|  1.03M|        auto child_size = relaxed_->d.sizes[0];
 1778|  1.03M|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1779|  1.03M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
 1036|  1.47M|    {
 1037|  1.47M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.47M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1617|  15.5M|    {
 1618|  15.5M|        each_left(v, relaxed_->d.count - 1, args...);
 1619|  15.5M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
 1623|  15.5M|    {
 1624|  15.5M|        auto p = node_->inner();
 1625|  15.5M|        auto s = size_t{};
 1626|  15.5M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 617k, False: 14.9M]
  ------------------
 1627|  4.47M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 3.86M, False: 617k]
  ------------------
 1628|  3.86M|                IMMER_PREFETCH(p + i + 1);
 1629|  3.86M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  3.86M|                    .visit(v, args...);
 1631|  3.86M|                s = relaxed_->d.sizes[i];
 1632|  3.86M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 3.86M, False: 0]
  ------------------
 1633|  3.86M|            }
 1634|  14.9M|        } else {
 1635|  14.9M|            auto ss = shift_ - B;
 1636|  69.4M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 54.4M, False: 14.9M]
  ------------------
 1637|  54.4M|                visit_maybe_relaxed_sub(
 1638|  54.4M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|  54.4M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 54.4M, False: 0]
  ------------------
 1641|  54.4M|            }
 1642|  14.9M|        }
 1643|  15.5M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1617|  15.5M|    {
 1618|  15.5M|        each_left(v, relaxed_->d.count - 1, args...);
 1619|  15.5M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
 1623|  15.5M|    {
 1624|  15.5M|        auto p = node_->inner();
 1625|  15.5M|        auto s = size_t{};
 1626|  15.5M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 617k, False: 14.9M]
  ------------------
 1627|  4.47M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 3.86M, False: 617k]
  ------------------
 1628|  3.86M|                IMMER_PREFETCH(p + i + 1);
 1629|  3.86M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  3.86M|                    .visit(v, args...);
 1631|  3.86M|                s = relaxed_->d.sizes[i];
 1632|  3.86M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 3.86M, False: 0]
  ------------------
 1633|  3.86M|            }
 1634|  14.9M|        } else {
 1635|  14.9M|            auto ss = shift_ - B;
 1636|  69.4M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 54.4M, False: 14.9M]
  ------------------
 1637|  54.4M|                visit_maybe_relaxed_sub(
 1638|  54.4M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|  54.4M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 54.4M, False: 0]
  ------------------
 1641|  54.4M|            }
 1642|  14.9M|        }
 1643|  15.5M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  10.7M|    {
 1763|  10.7M|        auto child      = node_->inner()[0];
 1764|  10.7M|        auto child_size = relaxed_->d.sizes[0];
 1765|  10.7M|        auto is_leaf    = shift_ == BL;
 1766|  10.7M|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 10.7M, False: 0]
  ------------------
 1767|  10.7M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 10.7M]
  ------------------
 1768|  10.7M|                       : visit_maybe_relaxed_sub(
 1769|  10.7M|                             child, shift_ - B, child_size, v, args...);
 1770|  10.7M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  10.7M|{
 1839|  10.7M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 10.7M, False: 0]
  ------------------
 1840|  10.7M|    auto relaxed = node->relaxed();
 1841|  10.7M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 10.7M, False: 1.26k]
  ------------------
 1842|  10.7M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 10.7M, False: 0]
  ------------------
 1843|  10.7M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  10.7M|            .visit(v, std::forward<Args>(args)...);
 1845|  10.7M|    } else {
 1846|  1.26k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.26k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.26k|    }
 1849|  10.7M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  10.7M|    {
 1814|  10.7M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  10.7M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  1.26k|    {
 1037|  1.26k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.26k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1750|  22.2k|    {
 1751|  22.2k|        auto offset     = relaxed_->d.count - 1;
 1752|  22.2k|        auto child      = node_->inner()[offset];
 1753|  22.2k|        auto child_size = size(offset);
 1754|  22.2k|        auto is_leaf    = shift_ == BL;
 1755|  22.2k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 0, False: 22.2k]
  ------------------
 1756|  22.2k|                       : visit_maybe_relaxed_sub(
 1757|  22.2k|                             child, shift_ - B, child_size, v, args...);
 1758|  22.2k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  22.2k|{
 1839|  22.2k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 22.2k, False: 0]
  ------------------
 1840|  22.2k|    auto relaxed = node->relaxed();
 1841|  22.2k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 21.7k, False: 550]
  ------------------
 1842|  21.7k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 21.7k, False: 0]
  ------------------
 1843|  21.7k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  21.7k|            .visit(v, std::forward<Args>(args)...);
 1845|  21.7k|    } else {
 1846|    550|        return make_regular_sub_pos(node, shift, size)
 1847|    550|            .visit(v, std::forward<Args>(args)...);
 1848|    550|    }
 1849|  22.2k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1813|  21.7k|    {
 1814|  21.7k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  21.7k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  970|  1.59k|    {
  971|  1.59k|        auto is_leaf = shift_ == BL;
  972|  1.59k|        auto child   = node_->inner()[0];
  973|  1.59k|        auto is_full = size_ >= (size_t{1} << shift_);
  974|  1.59k|        return is_full
  ------------------
  |  Branch (974:16): [True: 1.59k, False: 0]
  ------------------
  975|  1.59k|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 1.59k]
  ------------------
  976|  1.59k|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|  1.59k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|  1.59k|                   : (is_leaf
  ------------------
  |  Branch (978:23): [True: 0, False: 0]
  ------------------
  979|      0|                          ? make_leaf_sub_pos(child, size_).visit(v, args...)
  980|      0|                          : make_regular_sub_pos(child, shift_ - B, size_)
  981|      0|                                .visit(v, args...));
  982|  1.59k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1405|  2.34k|    {
 1406|  2.34k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.34k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1361|    752|    {
 1362|    752|        auto is_leaf = shift_ == BL;
 1363|    752|        auto child   = node_->inner()[0];
 1364|    752|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 752]
  ------------------
 1365|    752|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|    752|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1750|  2.13k|    {
 1751|  2.13k|        auto offset     = relaxed_->d.count - 1;
 1752|  2.13k|        auto child      = node_->inner()[offset];
 1753|  2.13k|        auto child_size = size(offset);
 1754|  2.13k|        auto is_leaf    = shift_ == BL;
 1755|  2.13k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 1.38k, False: 750]
  ------------------
 1756|  2.13k|                       : visit_maybe_relaxed_sub(
 1757|    750|                             child, shift_ - B, child_size, v, args...);
 1758|  2.13k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|    750|{
 1839|    750|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 750, False: 0]
  ------------------
 1840|    750|    auto relaxed = node->relaxed();
 1841|    750|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 544, False: 206]
  ------------------
 1842|    544|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 544, False: 0]
  ------------------
 1843|    544|        return make_relaxed_pos(node, shift, relaxed)
 1844|    544|            .visit(v, std::forward<Args>(args)...);
 1845|    544|    } else {
 1846|    206|        return make_regular_sub_pos(node, shift, size)
 1847|    206|            .visit(v, std::forward<Args>(args)...);
 1848|    206|    }
 1849|    750|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1813|    544|    {
 1814|    544|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    544|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1750|  11.3k|    {
 1751|  11.3k|        auto offset     = relaxed_->d.count - 1;
 1752|  11.3k|        auto child      = node_->inner()[offset];
 1753|  11.3k|        auto child_size = size(offset);
 1754|  11.3k|        auto is_leaf    = shift_ == BL;
 1755|  11.3k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 6.98k, False: 4.33k]
  ------------------
 1756|  11.3k|                       : visit_maybe_relaxed_sub(
 1757|  4.33k|                             child, shift_ - B, child_size, v, args...);
 1758|  11.3k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  4.33k|{
 1839|  4.33k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 4.33k, False: 0]
  ------------------
 1840|  4.33k|    auto relaxed = node->relaxed();
 1841|  4.33k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.11k, False: 3.22k]
  ------------------
 1842|  1.11k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.11k, False: 0]
  ------------------
 1843|  1.11k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.11k|            .visit(v, std::forward<Args>(args)...);
 1845|  3.22k|    } else {
 1846|  3.22k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.22k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.22k|    }
 1849|  4.33k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1813|  1.11k|    {
 1814|  1.11k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.11k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1750|  11.8M|    {
 1751|  11.8M|        auto offset     = relaxed_->d.count - 1;
 1752|  11.8M|        auto child      = node_->inner()[offset];
 1753|  11.8M|        auto child_size = size(offset);
 1754|  11.8M|        auto is_leaf    = shift_ == BL;
 1755|  11.8M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 608k, False: 11.2M]
  ------------------
 1756|  11.8M|                       : visit_maybe_relaxed_sub(
 1757|  11.2M|                             child, shift_ - B, child_size, v, args...);
 1758|  11.8M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  11.2M|{
 1839|  11.2M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 11.2M, False: 0]
  ------------------
 1840|  11.2M|    auto relaxed = node->relaxed();
 1841|  11.2M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 10.5M, False: 730k]
  ------------------
 1842|  10.5M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 10.5M, False: 0]
  ------------------
 1843|  10.5M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  10.5M|            .visit(v, std::forward<Args>(args)...);
 1845|  10.5M|    } else {
 1846|   730k|        return make_regular_sub_pos(node, shift, size)
 1847|   730k|            .visit(v, std::forward<Args>(args)...);
 1848|   730k|    }
 1849|  11.2M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1813|  10.5M|    {
 1814|  10.5M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  10.5M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  11.0k|    {
 1037|  11.0k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  11.0k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
 1036|  23.2k|    {
 1037|  23.2k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  23.2k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  23.2k|{
 1839|  23.2k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 23.2k, False: 0]
  ------------------
 1840|  23.2k|    auto relaxed = node->relaxed();
 1841|  23.2k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 6.19k, False: 17.0k]
  ------------------
 1842|  6.19k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 6.19k, False: 0]
  ------------------
 1843|  6.19k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  6.19k|            .visit(v, std::forward<Args>(args)...);
 1845|  17.0k|    } else {
 1846|  17.0k|        return make_regular_sub_pos(node, shift, size)
 1847|  17.0k|            .visit(v, std::forward<Args>(args)...);
 1848|  17.0k|    }
 1849|  23.2k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  6.19k|    {
 1814|  6.19k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  6.19k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  17.0k|    {
 1037|  17.0k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  17.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1813|   197k|    {
 1814|   197k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   197k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11last_oh_cshINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_jmDpOT0_:
 1737|   191k|    {
 1738|   191k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 191k, False: 0]
  ------------------
 1739|   191k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 191k, False: 0]
  ------------------
 1740|   191k|        auto child   = node_->inner()[offset_hint];
 1741|   191k|        auto is_leaf = shift_ == BL;
 1742|   191k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 191k]
  ------------------
 1743|   191k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|   191k|                   : visit_maybe_relaxed_sub(
 1745|   191k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|   191k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|   191k|{
 1839|   191k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 191k, False: 0]
  ------------------
 1840|   191k|    auto relaxed = node->relaxed();
 1841|   191k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 24.9k, False: 166k]
  ------------------
 1842|  24.9k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 24.9k, False: 0]
  ------------------
 1843|  24.9k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  24.9k|            .visit(v, std::forward<Args>(args)...);
 1845|   166k|    } else {
 1846|   166k|        return make_regular_sub_pos(node, shift, size)
 1847|   166k|            .visit(v, std::forward<Args>(args)...);
 1848|   166k|    }
 1849|   191k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1036|   166k|    {
 1037|   166k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   166k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  952|   316k|    {
  953|   316k|        return last_oh_regular(*this, v, offset_hint, args...);
  954|   316k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb1EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|   316k|{
  678|   316k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 316k, False: 0]
  ------------------
  679|   316k|    constexpr auto B  = bits<Pos>;
  680|   316k|    constexpr auto BL = bits_leaf<Pos>;
  681|   316k|    auto child        = p.node()->inner()[offset_hint];
  682|   316k|    auto is_leaf      = p.shift() == BL;
  683|   316k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 316k]
  ------------------
  684|   316k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|   316k|                         .visit(v, args...);
  686|   316k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
  336|  1.45M|    {
  337|  1.45M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  1.45M|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  330|  1.13M|    {
  331|  1.13M|        return last_oh_regular(*this, v, offset_hint, args...);
  332|  1.13M|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb1EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|  1.13M|{
  678|  1.13M|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 1.13M, False: 0]
  ------------------
  679|  1.13M|    constexpr auto B  = bits<Pos>;
  680|  1.13M|    constexpr auto BL = bits_leaf<Pos>;
  681|  1.13M|    auto child        = p.node()->inner()[offset_hint];
  682|  1.13M|    auto is_leaf      = p.shift() == BL;
  683|  1.13M|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 1.13M]
  ------------------
  684|  1.13M|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  1.13M|                         .visit(v, args...);
  686|  1.13M|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  330|  2.32k|    {
  331|  2.32k|        return last_oh_regular(*this, v, offset_hint, args...);
  332|  2.32k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb0EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|  2.32k|{
  678|  2.32k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 2.32k, False: 0]
  ------------------
  679|  2.32k|    constexpr auto B  = bits<Pos>;
  680|  2.32k|    constexpr auto BL = bits_leaf<Pos>;
  681|  2.32k|    auto child        = p.node()->inner()[offset_hint];
  682|  2.32k|    auto is_leaf      = p.shift() == BL;
  683|  2.32k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 2.32k]
  ------------------
  684|  2.32k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  2.32k|                         .visit(v, args...);
  686|  2.32k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
  336|  3.44k|    {
  337|  3.44k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.44k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  952|  1.11k|    {
  953|  1.11k|        return last_oh_regular(*this, v, offset_hint, args...);
  954|  1.11k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb0EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|  1.11k|{
  678|  1.11k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 1.11k, False: 0]
  ------------------
  679|  1.11k|    constexpr auto B  = bits<Pos>;
  680|  1.11k|    constexpr auto BL = bits_leaf<Pos>;
  681|  1.11k|    auto child        = p.node()->inner()[offset_hint];
  682|  1.11k|    auto is_leaf      = p.shift() == BL;
  683|  1.11k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 1.11k]
  ------------------
  684|  1.11k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  1.11k|                         .visit(v, args...);
  686|  1.11k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE11last_oh_cshINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_jmDpOT0_:
 1737|  5.17k|    {
 1738|  5.17k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 5.17k, False: 0]
  ------------------
 1739|  5.17k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 5.17k, False: 0]
  ------------------
 1740|  5.17k|        auto child   = node_->inner()[offset_hint];
 1741|  5.17k|        auto is_leaf = shift_ == BL;
 1742|  5.17k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 5.17k]
  ------------------
 1743|  5.17k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|  5.17k|                   : visit_maybe_relaxed_sub(
 1745|  5.17k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|  5.17k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|  5.17k|{
 1839|  5.17k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 5.17k, False: 0]
  ------------------
 1840|  5.17k|    auto relaxed = node->relaxed();
 1841|  5.17k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 4.44k, False: 726]
  ------------------
 1842|  4.44k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 4.44k, False: 0]
  ------------------
 1843|  4.44k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  4.44k|            .visit(v, std::forward<Args>(args)...);
 1845|  4.44k|    } else {
 1846|    726|        return make_regular_sub_pos(node, shift, size)
 1847|    726|            .visit(v, std::forward<Args>(args)...);
 1848|    726|    }
 1849|  5.17k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1813|  4.44k|    {
 1814|  4.44k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  4.44k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1036|    726|    {
 1037|    726|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    726|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
 1036|   162k|    {
 1037|   162k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   162k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcPT_jmT0_DpOT1_:
 1838|  15.6k|{
 1839|  15.6k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 15.6k, False: 0]
  ------------------
 1840|  15.6k|    auto relaxed = node->relaxed();
 1841|  15.6k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 13.3k, False: 2.32k]
  ------------------
 1842|  13.3k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 13.3k, False: 0]
  ------------------
 1843|  13.3k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  13.3k|            .visit(v, std::forward<Args>(args)...);
 1845|  13.3k|    } else {
 1846|  2.32k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.32k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.32k|    }
 1849|  15.6k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_DpOT0_:
 1813|  13.3k|    {
 1814|  13.3k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  13.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjDpOT0_:
 1686|  70.5k|    {
 1687|  70.5k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 70.5k, False: 0]
  ------------------
 1688|  70.5k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 17.6k, False: 52.8k]
  ------------------
 1689|  70.5k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  70.5k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjmDpOT0_:
 1698|  70.5k|    {
 1699|  70.5k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  70.5k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjmDpOT0_:
 1717|  70.5k|    {
 1718|  70.5k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 70.5k, False: 0]
  ------------------
 1719|  70.5k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 17.6k, False: 52.8k]
  |  Branch (1719:9): [True: 70.5k, False: 0]
  ------------------
 1720|  70.5k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  70.5k|        auto child     = node_->inner()[offset_hint];
 1722|  70.5k|        auto is_leaf   = shift_ == BL;
 1723|  70.5k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  70.5k|        auto next_idx  = idx - left_size_hint;
 1725|  70.5k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 11.3k, False: 59.1k]
  ------------------
 1726|  70.5k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  11.3k|                         .visit(v, next_idx, args...)
 1728|  70.5k|                   : visit_maybe_relaxed_sub(
 1729|  59.1k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  70.5k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  144|  11.3k|    {
  145|  11.3k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  11.3k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcPT_jmT0_DpOT1_:
 1838|  59.1k|{
 1839|  59.1k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 59.1k, False: 0]
  ------------------
 1840|  59.1k|    auto relaxed = node->relaxed();
 1841|  59.1k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 57.1k, False: 1.99k]
  ------------------
 1842|  57.1k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 57.1k, False: 0]
  ------------------
 1843|  57.1k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  57.1k|            .visit(v, std::forward<Args>(args)...);
 1845|  57.1k|    } else {
 1846|  1.99k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.99k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.99k|    }
 1849|  59.1k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1813|  57.1k|    {
 1814|  57.1k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  57.1k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1036|  1.99k|    {
 1037|  1.99k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.99k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
  938|  4.31k|    {
  939|  4.31k|        return towards_oh_ch_regular(
  940|  4.31k|            *this, v, idx, offset_hint, count(), args...);
  941|  4.31k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_15get_mut_visitorISD_EEJRNSB_5applyIS8_E4type4editERPPSD_EEEDcOT_T0_mjjDpOT1_:
  632|  4.31k|{
  633|  4.31k|    constexpr auto B  = bits<Pos>;
  634|  4.31k|    constexpr auto BL = bits_leaf<Pos>;
  635|  4.31k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 4.31k, False: 0]
  ------------------
  636|  4.31k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 4.31k, False: 0]
  ------------------
  637|  4.31k|    auto is_leaf = p.shift() == BL;
  638|  4.31k|    auto child   = p.node()->inner()[offset_hint];
  639|  4.31k|    auto is_full = offset_hint + 1 != count_hint;
  640|  4.31k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.07k, False: 2.24k]
  ------------------
  641|  4.31k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 903, False: 1.16k]
  ------------------
  642|  2.07k|                          : make_full_pos(child, p.shift() - B)
  643|  1.16k|                                .visit(v, idx, args...))
  644|  4.31k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 497, False: 1.74k]
  ------------------
  645|  2.24k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  2.24k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  1.74k|                            .visit(v, idx, args...));
  648|  4.31k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  207|  3.40k|    {
  208|  3.40k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  3.40k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1405|  2.84k|    {
 1406|  2.84k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.84k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
 1329|  2.84k|    {
 1330|  2.84k|        return towards_oh(v, idx, offset_hint, args...);
 1331|  2.84k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjDpOT0_:
 1336|  2.84k|    {
 1337|  2.84k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 2.84k, False: 0]
  ------------------
 1338|  2.84k|        auto is_leaf = shift_ == BL;
 1339|  2.84k|        auto child   = node_->inner()[offset_hint];
 1340|  2.84k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 2.09k, False: 744]
  ------------------
 1341|  2.84k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  2.84k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  2.84k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  112|    907|    {
  113|    907|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    907|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  336|  2.30k|    {
  337|  2.30k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  2.30k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
  316|  2.30k|    {
  317|  2.30k|        return towards_oh_ch_regular(
  318|  2.30k|            *this, v, idx, offset_hint, count(), args...);
  319|  2.30k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_15get_mut_visitorISD_EEJRNSB_5applyIS8_E4type4editERPPSD_EEEDcOT_T0_mjjDpOT1_:
  632|  2.30k|{
  633|  2.30k|    constexpr auto B  = bits<Pos>;
  634|  2.30k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.30k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.30k, False: 0]
  ------------------
  636|  2.30k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.30k, False: 0]
  ------------------
  637|  2.30k|    auto is_leaf = p.shift() == BL;
  638|  2.30k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.30k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.30k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.33k, False: 968]
  ------------------
  641|  2.30k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 408, False: 930]
  ------------------
  642|  1.33k|                          : make_full_pos(child, p.shift() - B)
  643|    930|                                .visit(v, idx, args...))
  644|  2.30k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 410, False: 558]
  ------------------
  645|    968|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    968|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    558|                            .visit(v, idx, args...));
  648|  2.30k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_DpOT0_:
 1036|  2.32k|    {
 1037|  2.32k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.32k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  40.5k|{
 1839|  40.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 40.5k, False: 0]
  ------------------
 1840|  40.5k|    auto relaxed = node->relaxed();
 1841|  40.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 28.7k, False: 11.8k]
  ------------------
 1842|  28.7k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 28.7k, False: 0]
  ------------------
 1843|  28.7k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  28.7k|            .visit(v, std::forward<Args>(args)...);
 1845|  28.7k|    } else {
 1846|  11.8k|        return make_regular_sub_pos(node, shift, size)
 1847|  11.8k|            .visit(v, std::forward<Args>(args)...);
 1848|  11.8k|    }
 1849|  40.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  28.7k|    {
 1814|  28.7k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  28.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  10.0k|    {
 1687|  10.0k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 10.0k, False: 0]
  ------------------
 1688|  10.0k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 10.0k]
  ------------------
 1689|  10.0k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  10.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  10.0k|    {
 1699|  10.0k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  10.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  10.0k|    {
 1718|  10.0k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 10.0k, False: 0]
  ------------------
 1719|  10.0k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 10.0k]
  |  Branch (1719:9): [True: 10.0k, False: 0]
  ------------------
 1720|  10.0k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  10.0k|        auto child     = node_->inner()[offset_hint];
 1722|  10.0k|        auto is_leaf   = shift_ == BL;
 1723|  10.0k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  10.0k|        auto next_idx  = idx - left_size_hint;
 1725|  10.0k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 974, False: 9.06k]
  ------------------
 1726|  10.0k|                   ? make_leaf_sub_pos(child, next_size)
 1727|    974|                         .visit(v, next_idx, args...)
 1728|  10.0k|                   : visit_maybe_relaxed_sub(
 1729|  9.06k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  10.0k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|    974|    {
  145|    974|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    974|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  19.7k|    {
 1687|  19.7k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 19.7k, False: 0]
  ------------------
 1688|  19.7k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 19.7k]
  ------------------
 1689|  19.7k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  19.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  19.7k|    {
 1699|  19.7k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  19.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  19.7k|    {
 1718|  19.7k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 19.7k, False: 0]
  ------------------
 1719|  19.7k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 19.7k]
  |  Branch (1719:9): [True: 19.7k, False: 0]
  ------------------
 1720|  19.7k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  19.7k|        auto child     = node_->inner()[offset_hint];
 1722|  19.7k|        auto is_leaf   = shift_ == BL;
 1723|  19.7k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  19.7k|        auto next_idx  = idx - left_size_hint;
 1725|  19.7k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 955, False: 18.8k]
  ------------------
 1726|  19.7k|                   ? make_leaf_sub_pos(child, next_size)
 1727|    955|                         .visit(v, next_idx, args...)
 1728|  19.7k|                   : visit_maybe_relaxed_sub(
 1729|  18.8k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  19.7k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|    955|    {
  145|    955|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    955|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  18.8k|{
 1839|  18.8k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 18.8k, False: 0]
  ------------------
 1840|  18.8k|    auto relaxed = node->relaxed();
 1841|  18.8k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 17.5k, False: 1.26k]
  ------------------
 1842|  17.5k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 17.5k, False: 0]
  ------------------
 1843|  17.5k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  17.5k|            .visit(v, std::forward<Args>(args)...);
 1845|  17.5k|    } else {
 1846|  1.26k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.26k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.26k|    }
 1849|  18.8k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  17.5k|    {
 1814|  17.5k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  17.5k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.26k|    {
 1037|  1.26k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.26k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  2.38k|    {
  928|  2.38k|        return towards_oh_ch_regular(
  929|  2.38k|            *this, v, idx, offset_hint, count(), args...);
  930|  2.38k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb1ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  2.38k|{
  633|  2.38k|    constexpr auto B  = bits<Pos>;
  634|  2.38k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.38k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.38k, False: 0]
  ------------------
  636|  2.38k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.38k, False: 0]
  ------------------
  637|  2.38k|    auto is_leaf = p.shift() == BL;
  638|  2.38k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.38k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.38k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.98k, False: 406]
  ------------------
  641|  2.38k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 478, False: 1.50k]
  ------------------
  642|  1.98k|                          : make_full_pos(child, p.shift() - B)
  643|  1.50k|                                .visit(v, idx, args...))
  644|  2.38k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 406, False: 0]
  ------------------
  645|    406|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    406|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .visit(v, idx, args...));
  648|  2.38k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  1.44k|    {
  208|  1.44k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.44k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  1.78k|    {
 1406|  1.78k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.78k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  1.24k|    {
 1337|  1.24k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 1.24k, False: 0]
  ------------------
 1338|  1.24k|        auto is_leaf = shift_ == BL;
 1339|  1.24k|        auto child   = node_->inner()[offset_hint];
 1340|  1.24k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 964, False: 282]
  ------------------
 1341|  1.24k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  1.24k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  1.24k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  2.63k|    {
 1337|  2.63k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 2.63k, False: 0]
  ------------------
 1338|  2.63k|        auto is_leaf = shift_ == BL;
 1339|  2.63k|        auto child   = node_->inner()[offset_hint];
 1340|  2.63k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 1.66k, False: 962]
  ------------------
 1341|  2.63k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  2.63k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  2.63k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  3.30k|    {
  208|  3.30k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  3.30k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  4.00k|    {
 1406|  4.00k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  4.00k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1405|  3.05k|    {
 1406|  3.05k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.05k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  10.2k|    {
 1337|  10.2k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 10.2k, False: 0]
  ------------------
 1338|  10.2k|        auto is_leaf = shift_ == BL;
 1339|  10.2k|        auto child   = node_->inner()[offset_hint];
 1340|  10.2k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 7.67k, False: 2.61k]
  ------------------
 1341|  10.2k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  10.2k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  10.2k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  10.1k|    {
  208|  10.1k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  10.1k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  6.06k|    {
 1406|  6.06k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  6.06k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1310|  3.58k|    {
 1311|  3.58k|        each_i(v, start, branches<B>, args...);
 1312|  3.58k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE6each_iINS1_11dec_visitorEJEEEvT_jjDpOT0_:
 1263|  5.10k|    {
 1264|  5.10k|        auto p = node_->inner() + i;
 1265|  5.10k|        auto e = node_->inner() + n;
 1266|  5.10k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 3.15k, False: 1.94k]
  ------------------
 1267|  16.1k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 13.0k, False: 3.15k]
  ------------------
 1268|  13.0k|                IMMER_PREFETCH(p + 1);
 1269|  13.0k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|  13.0k|            }
 1271|  3.15k|        } else {
 1272|  1.94k|            auto ss = shift_ - B;
 1273|  11.2k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 9.26k, False: 1.94k]
  ------------------
 1274|  9.26k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  1.94k|        }
 1276|  5.10k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|    406|    {
  113|    406|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    406|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  305|  3.14k|    {
  306|  3.14k|        return towards_oh_ch_regular(
  307|  3.14k|            *this, v, idx, offset_hint, count(), args...);
  308|  3.14k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  3.14k|{
  633|  3.14k|    constexpr auto B  = bits<Pos>;
  634|  3.14k|    constexpr auto BL = bits_leaf<Pos>;
  635|  3.14k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 3.14k, False: 0]
  ------------------
  636|  3.14k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 3.14k, False: 0]
  ------------------
  637|  3.14k|    auto is_leaf = p.shift() == BL;
  638|  3.14k|    auto child   = p.node()->inner()[offset_hint];
  639|  3.14k|    auto is_full = offset_hint + 1 != count_hint;
  640|  3.14k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.15k, False: 994]
  ------------------
  641|  3.14k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 834, False: 1.32k]
  ------------------
  642|  2.15k|                          : make_full_pos(child, p.shift() - B)
  643|  1.32k|                                .visit(v, idx, args...))
  644|  3.14k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 644, False: 350]
  ------------------
  645|    994|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    994|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    350|                            .visit(v, idx, args...));
  648|  3.14k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|  1.54k|    {
  113|  1.54k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  1.54k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  336|  4.27k|    {
  337|  4.27k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  4.27k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
  336|  1.58k|    {
  337|  1.58k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  1.58k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  305|  4.31k|    {
  306|  4.31k|        return towards_oh_ch_regular(
  307|  4.31k|            *this, v, idx, offset_hint, count(), args...);
  308|  4.31k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  4.31k|{
  633|  4.31k|    constexpr auto B  = bits<Pos>;
  634|  4.31k|    constexpr auto BL = bits_leaf<Pos>;
  635|  4.31k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 4.31k, False: 0]
  ------------------
  636|  4.31k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 4.31k, False: 0]
  ------------------
  637|  4.31k|    auto is_leaf = p.shift() == BL;
  638|  4.31k|    auto child   = p.node()->inner()[offset_hint];
  639|  4.31k|    auto is_full = offset_hint + 1 != count_hint;
  640|  4.31k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.07k, False: 2.24k]
  ------------------
  641|  4.31k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.07k, False: 1.00k]
  ------------------
  642|  2.07k|                          : make_full_pos(child, p.shift() - B)
  643|  1.00k|                                .visit(v, idx, args...))
  644|  4.31k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.61k, False: 623]
  ------------------
  645|  2.24k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  2.24k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    623|                            .visit(v, idx, args...));
  648|  4.31k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|  2.36k|    {
  113|  2.36k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  2.36k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  336|  3.19k|    {
  337|  3.19k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.19k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
  285|  3.14k|    {
  286|  3.14k|        return each_right_regular(*this, v, start, args...);
  287|  3.14k|    }
_ZN5immer6detail4rbts18each_right_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_jDpOT1_:
  597|  3.14k|{
  598|  3.14k|    constexpr auto B  = bits<Pos>;
  599|  3.14k|    constexpr auto BL = bits_leaf<Pos>;
  600|       |
  601|  3.14k|    if (p.shift() == BL) {
  ------------------
  |  Branch (601:9): [True: 1.47k, False: 1.67k]
  ------------------
  602|  1.47k|        auto n    = p.node()->inner() + start;
  603|  1.47k|        auto last = p.count() - 1;
  604|  1.47k|        auto e    = p.node()->inner() + last;
  605|  1.47k|        if (n <= e) {
  ------------------
  |  Branch (605:13): [True: 834, False: 644]
  ------------------
  606|  2.55k|            for (; n != e; ++n) {
  ------------------
  |  Branch (606:20): [True: 1.72k, False: 834]
  ------------------
  607|  1.72k|                IMMER_PREFETCH(n + 1);
  608|  1.72k|                make_full_leaf_pos(*n).visit(v, args...);
  609|  1.72k|            }
  610|    834|            make_leaf_pos(*n, p.size()).visit(v, args...);
  611|    834|        }
  612|  1.67k|    } else {
  613|  1.67k|        auto n    = p.node()->inner() + start;
  614|  1.67k|        auto last = p.count() - 1;
  615|  1.67k|        auto e    = p.node()->inner() + last;
  616|  1.67k|        auto ss   = p.shift() - B;
  617|  1.67k|        if (n <= e) {
  ------------------
  |  Branch (617:13): [True: 1.32k, False: 350]
  ------------------
  618|  2.89k|            for (; n != e; ++n)
  ------------------
  |  Branch (618:20): [True: 1.57k, False: 1.32k]
  ------------------
  619|  1.57k|                make_full_pos(*n, ss).visit(v, args...);
  620|  1.32k|            make_regular_pos(*n, ss, p.size()).visit(v, args...);
  621|  1.32k|        }
  622|  1.67k|    }
  623|  3.14k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  7.35k|    {
  928|  7.35k|        return towards_oh_ch_regular(
  929|  7.35k|            *this, v, idx, offset_hint, count(), args...);
  930|  7.35k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  7.35k|{
  633|  7.35k|    constexpr auto B  = bits<Pos>;
  634|  7.35k|    constexpr auto BL = bits_leaf<Pos>;
  635|  7.35k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 7.35k, False: 0]
  ------------------
  636|  7.35k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 7.35k, False: 0]
  ------------------
  637|  7.35k|    auto is_leaf = p.shift() == BL;
  638|  7.35k|    auto child   = p.node()->inner()[offset_hint];
  639|  7.35k|    auto is_full = offset_hint + 1 != count_hint;
  640|  7.35k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.52k, False: 4.83k]
  ------------------
  641|  7.35k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 806, False: 1.72k]
  ------------------
  642|  2.52k|                          : make_full_pos(child, p.shift() - B)
  643|  1.72k|                                .visit(v, idx, args...))
  644|  7.35k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 905, False: 3.92k]
  ------------------
  645|  4.83k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  4.83k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  3.92k|                            .visit(v, idx, args...));
  648|  7.35k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  7.20k|    {
  928|  7.20k|        return towards_oh_ch_regular(
  929|  7.20k|            *this, v, idx, offset_hint, count(), args...);
  930|  7.20k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  7.20k|{
  633|  7.20k|    constexpr auto B  = bits<Pos>;
  634|  7.20k|    constexpr auto BL = bits_leaf<Pos>;
  635|  7.20k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 7.20k, False: 0]
  ------------------
  636|  7.20k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 7.20k, False: 0]
  ------------------
  637|  7.20k|    auto is_leaf = p.shift() == BL;
  638|  7.20k|    auto child   = p.node()->inner()[offset_hint];
  639|  7.20k|    auto is_full = offset_hint + 1 != count_hint;
  640|  7.20k|    return is_full
  ------------------
  |  Branch (640:12): [True: 3.89k, False: 3.31k]
  ------------------
  641|  7.20k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.44k, False: 2.44k]
  ------------------
  642|  3.89k|                          : make_full_pos(child, p.shift() - B)
  643|  2.44k|                                .visit(v, idx, args...))
  644|  7.20k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 744, False: 2.56k]
  ------------------
  645|  3.31k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  3.31k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.56k|                            .visit(v, idx, args...));
  648|  7.20k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
  867|  11.9k|    {
  868|  11.9k|        return each_right_regular(*this, v, start, args...);
  869|  11.9k|    }
_ZN5immer6detail4rbts18each_right_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_jDpOT1_:
  597|  11.9k|{
  598|  11.9k|    constexpr auto B  = bits<Pos>;
  599|  11.9k|    constexpr auto BL = bits_leaf<Pos>;
  600|       |
  601|  11.9k|    if (p.shift() == BL) {
  ------------------
  |  Branch (601:9): [True: 3.48k, False: 8.51k]
  ------------------
  602|  3.48k|        auto n    = p.node()->inner() + start;
  603|  3.48k|        auto last = p.count() - 1;
  604|  3.48k|        auto e    = p.node()->inner() + last;
  605|  3.48k|        if (n <= e) {
  ------------------
  |  Branch (605:13): [True: 1.87k, False: 1.61k]
  ------------------
  606|  2.98k|            for (; n != e; ++n) {
  ------------------
  |  Branch (606:20): [True: 1.11k, False: 1.87k]
  ------------------
  607|  1.11k|                IMMER_PREFETCH(n + 1);
  608|  1.11k|                make_full_leaf_pos(*n).visit(v, args...);
  609|  1.11k|            }
  610|  1.87k|            make_leaf_pos(*n, p.size()).visit(v, args...);
  611|  1.87k|        }
  612|  8.51k|    } else {
  613|  8.51k|        auto n    = p.node()->inner() + start;
  614|  8.51k|        auto last = p.count() - 1;
  615|  8.51k|        auto e    = p.node()->inner() + last;
  616|  8.51k|        auto ss   = p.shift() - B;
  617|  8.51k|        if (n <= e) {
  ------------------
  |  Branch (617:13): [True: 4.58k, False: 3.92k]
  ------------------
  618|  5.74k|            for (; n != e; ++n)
  ------------------
  |  Branch (618:20): [True: 1.16k, False: 4.58k]
  ------------------
  619|  1.16k|                make_full_pos(*n, ss).visit(v, args...);
  620|  4.58k|            make_regular_pos(*n, ss, p.size()).visit(v, args...);
  621|  4.58k|        }
  622|  8.51k|    }
  623|  11.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1813|  19.1k|    {
 1814|  19.1k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  19.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  12.3k|    {
 1687|  12.3k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 12.3k, False: 0]
  ------------------
 1688|  12.3k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 11.3k, False: 1.03k]
  ------------------
 1689|  12.3k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  12.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  12.3k|    {
 1699|  12.3k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  12.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  12.3k|    {
 1718|  12.3k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 12.3k, False: 0]
  ------------------
 1719|  12.3k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 11.3k, False: 1.03k]
  |  Branch (1719:9): [True: 12.3k, False: 0]
  ------------------
 1720|  12.3k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  12.3k|        auto child     = node_->inner()[offset_hint];
 1722|  12.3k|        auto is_leaf   = shift_ == BL;
 1723|  12.3k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  12.3k|        auto next_idx  = idx - left_size_hint;
 1725|  12.3k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 2.60k, False: 9.76k]
  ------------------
 1726|  12.3k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  2.60k|                         .visit(v, next_idx, args...)
 1728|  12.3k|                   : visit_maybe_relaxed_sub(
 1729|  9.76k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  12.3k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  2.60k|    {
  145|  2.60k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  2.60k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  9.76k|{
 1839|  9.76k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 9.76k, False: 0]
  ------------------
 1840|  9.76k|    auto relaxed = node->relaxed();
 1841|  9.76k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 4.29k, False: 5.47k]
  ------------------
 1842|  4.29k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 4.29k, False: 0]
  ------------------
 1843|  4.29k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  4.29k|            .visit(v, std::forward<Args>(args)...);
 1845|  5.47k|    } else {
 1846|  5.47k|        return make_regular_sub_pos(node, shift, size)
 1847|  5.47k|            .visit(v, std::forward<Args>(args)...);
 1848|  5.47k|    }
 1849|  9.76k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  4.29k|    {
 1814|  4.29k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  4.29k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  5.47k|    {
 1037|  5.47k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  5.47k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1036|  9.85k|    {
 1037|  9.85k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  9.85k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  12.7k|    {
 1687|  12.7k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 12.7k, False: 0]
  ------------------
 1688|  12.7k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 10.0k, False: 2.72k]
  ------------------
 1689|  12.7k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  12.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  12.7k|    {
 1699|  12.7k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  12.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  12.7k|    {
 1718|  12.7k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 12.7k, False: 0]
  ------------------
 1719|  12.7k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 10.0k, False: 2.72k]
  |  Branch (1719:9): [True: 12.7k, False: 0]
  ------------------
 1720|  12.7k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  12.7k|        auto child     = node_->inner()[offset_hint];
 1722|  12.7k|        auto is_leaf   = shift_ == BL;
 1723|  12.7k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  12.7k|        auto next_idx  = idx - left_size_hint;
 1725|  12.7k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 5.40k, False: 7.32k]
  ------------------
 1726|  12.7k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  5.40k|                         .visit(v, next_idx, args...)
 1728|  12.7k|                   : visit_maybe_relaxed_sub(
 1729|  7.32k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  12.7k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  5.40k|    {
  145|  5.40k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  5.40k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  7.32k|{
 1839|  7.32k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 7.32k, False: 0]
  ------------------
 1840|  7.32k|    auto relaxed = node->relaxed();
 1841|  7.32k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 4.34k, False: 2.98k]
  ------------------
 1842|  4.34k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 4.34k, False: 0]
  ------------------
 1843|  4.34k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  4.34k|            .visit(v, std::forward<Args>(args)...);
 1845|  4.34k|    } else {
 1846|  2.98k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.98k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.98k|    }
 1849|  7.32k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  4.34k|    {
 1814|  4.34k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  4.34k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  2.98k|    {
 1037|  2.98k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.98k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1653|  22.4k|    {
 1654|  22.4k|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 22.4k, False: 0]
  ------------------
 1655|  22.4k|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 22.4k, False: 0]
  ------------------
 1656|  22.4k|        auto s = relaxed_->d.sizes[start - 1];
 1657|  22.4k|        auto p = node_->inner();
 1658|  22.4k|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 3.58k, False: 18.8k]
  ------------------
 1659|  16.2k|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 12.6k, False: 3.58k]
  ------------------
 1660|  12.6k|                IMMER_PREFETCH(p + i + 1);
 1661|  12.6k|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  12.6k|                    .visit(v, args...);
 1663|  12.6k|                s = relaxed_->d.sizes[i];
 1664|  12.6k|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 12.6k, False: 0]
  ------------------
 1665|  12.6k|            }
 1666|  18.8k|        } else {
 1667|  18.8k|            auto ss = shift_ - B;
 1668|  79.0k|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 60.2k, False: 18.8k]
  ------------------
 1669|  60.2k|                visit_maybe_relaxed_sub(
 1670|  60.2k|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|  60.2k|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 60.2k, False: 0]
  ------------------
 1673|  60.2k|            }
 1674|  18.8k|        }
 1675|  22.4k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  11.8k|    {
 1037|  11.8k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  11.8k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  4.63k|    {
  928|  4.63k|        return towards_oh_ch_regular(
  929|  4.63k|            *this, v, idx, offset_hint, count(), args...);
  930|  4.63k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb1ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  4.63k|{
  633|  4.63k|    constexpr auto B  = bits<Pos>;
  634|  4.63k|    constexpr auto BL = bits_leaf<Pos>;
  635|  4.63k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 4.63k, False: 0]
  ------------------
  636|  4.63k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 4.63k, False: 0]
  ------------------
  637|  4.63k|    auto is_leaf = p.shift() == BL;
  638|  4.63k|    auto child   = p.node()->inner()[offset_hint];
  639|  4.63k|    auto is_full = offset_hint + 1 != count_hint;
  640|  4.63k|    return is_full
  ------------------
  |  Branch (640:12): [True: 3.93k, False: 705]
  ------------------
  641|  4.63k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.06k, False: 2.86k]
  ------------------
  642|  3.93k|                          : make_full_pos(child, p.shift() - B)
  643|  2.86k|                                .visit(v, idx, args...))
  644|  4.63k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 705, False: 0]
  ------------------
  645|    705|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    705|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .visit(v, idx, args...));
  648|  4.63k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  1.61k|    {
  208|  1.61k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.61k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  3.27k|    {
 1406|  3.27k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.27k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|    956|    {
 1337|    956|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 956, False: 0]
  ------------------
 1338|    956|        auto is_leaf = shift_ == BL;
 1339|    956|        auto child   = node_->inner()[offset_hint];
 1340|    956|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 549, False: 407]
  ------------------
 1341|    956|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|    956|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|    956|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|    705|    {
  113|    705|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    705|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|    998|    {
  145|    998|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    998|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  71.2k|{
 1839|  71.2k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 71.2k, False: 0]
  ------------------
 1840|  71.2k|    auto relaxed = node->relaxed();
 1841|  71.2k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 65.4k, False: 5.72k]
  ------------------
 1842|  65.4k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 65.4k, False: 0]
  ------------------
 1843|  65.4k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  65.4k|            .visit(v, std::forward<Args>(args)...);
 1845|  65.4k|    } else {
 1846|  5.72k|        return make_regular_sub_pos(node, shift, size)
 1847|  5.72k|            .visit(v, std::forward<Args>(args)...);
 1848|  5.72k|    }
 1849|  71.2k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  65.4k|    {
 1814|  65.4k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  65.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|  1.87k|    {
 1706|  1.87k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 1.87k, False: 0]
  ------------------
 1707|  1.87k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 1.49k, False: 380]
  ------------------
 1708|  1.87k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  1.87k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  1.87k|    {
 1718|  1.87k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 1.87k, False: 0]
  ------------------
 1719|  1.87k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 1.49k, False: 380]
  |  Branch (1719:9): [True: 1.87k, False: 0]
  ------------------
 1720|  1.87k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  1.87k|        auto child     = node_->inner()[offset_hint];
 1722|  1.87k|        auto is_leaf   = shift_ == BL;
 1723|  1.87k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  1.87k|        auto next_idx  = idx - left_size_hint;
 1725|  1.87k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 1.87k]
  ------------------
 1726|  1.87k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  1.87k|                   : visit_maybe_relaxed_sub(
 1729|  1.87k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  1.87k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|  3.50k|    {
 1706|  3.50k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 3.50k, False: 0]
  ------------------
 1707|  3.50k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 2.99k, False: 507]
  ------------------
 1708|  3.50k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  3.50k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  3.50k|    {
 1718|  3.50k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 3.50k, False: 0]
  ------------------
 1719|  3.50k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 2.99k, False: 507]
  |  Branch (1719:9): [True: 3.50k, False: 0]
  ------------------
 1720|  3.50k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  3.50k|        auto child     = node_->inner()[offset_hint];
 1722|  3.50k|        auto is_leaf   = shift_ == BL;
 1723|  3.50k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  3.50k|        auto next_idx  = idx - left_size_hint;
 1725|  3.50k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 3.50k]
  ------------------
 1726|  3.50k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  3.50k|                   : visit_maybe_relaxed_sub(
 1729|  3.50k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  3.50k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  3.50k|{
 1839|  3.50k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 3.50k, False: 0]
  ------------------
 1840|  3.50k|    auto relaxed = node->relaxed();
 1841|  3.50k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.29k, False: 1.20k]
  ------------------
 1842|  2.29k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.29k, False: 0]
  ------------------
 1843|  2.29k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.29k|            .visit(v, std::forward<Args>(args)...);
 1845|  2.29k|    } else {
 1846|  1.20k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.20k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.20k|    }
 1849|  3.50k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  2.29k|    {
 1814|  2.29k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.29k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.20k|    {
 1037|  1.20k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.20k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  1.45k|    {
  947|  1.45k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  1.45k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb1ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  1.45k|{
  654|  1.45k|    constexpr auto B  = bits<Pos>;
  655|  1.45k|    constexpr auto BL = bits_leaf<Pos>;
  656|  1.45k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 1.45k, False: 0]
  ------------------
  657|  1.45k|    auto is_leaf = p.shift() == BL;
  658|  1.45k|    auto child   = p.node()->inner()[offset_hint];
  659|  1.45k|    auto lsize   = offset_hint << p.shift();
  660|  1.45k|    auto size    = p.this_size();
  661|  1.45k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  1.45k|    return is_full
  ------------------
  |  Branch (662:12): [True: 621, False: 837]
  ------------------
  663|  1.45k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 0, False: 621]
  ------------------
  664|    621|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|    621|                      : make_full_pos(child, p.shift() - B)
  666|    621|                            .visit(v, idx - lsize, args...))
  667|  1.45k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 837]
  ------------------
  668|    837|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|    837|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|    837|                            .visit(v, idx - lsize, args...));
  672|  1.45k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|    621|    {
 1406|    621|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    621|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1348|  1.51k|    {
 1349|  1.51k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1349:9): [True: 1.51k, False: 0]
  ------------------
 1350|  1.51k|        auto is_leaf = shift_ == BL;
 1351|  1.51k|        auto child   = node_->inner()[offset_hint];
 1352|  1.51k|        auto lsize   = size_t{offset_hint} << shift_;
 1353|  1.51k|        return is_leaf
  ------------------
  |  Branch (1353:16): [True: 940, False: 576]
  ------------------
 1354|  1.51k|                   ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
 1355|  1.51k|                   : make_full_pos(child, shift_ - B)
 1356|    576|                         .visit(v, idx - lsize, args...);
 1357|  1.51k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  2.88k|    {
  208|  2.88k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  2.88k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  1.68k|    {
 1406|  1.68k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.68k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1348|  4.00k|    {
 1349|  4.00k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1349:9): [True: 4.00k, False: 0]
  ------------------
 1350|  4.00k|        auto is_leaf = shift_ == BL;
 1351|  4.00k|        auto child   = node_->inner()[offset_hint];
 1352|  4.00k|        auto lsize   = size_t{offset_hint} << shift_;
 1353|  4.00k|        return is_leaf
  ------------------
  |  Branch (1353:16): [True: 3.27k, False: 724]
  ------------------
 1354|  4.00k|                   ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
 1355|  4.00k|                   : make_full_pos(child, shift_ - B)
 1356|    724|                         .visit(v, idx - lsize, args...);
 1357|  4.00k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  6.98k|    {
  208|  6.98k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  6.98k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  2.13k|    {
 1406|  2.13k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.13k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1316|  1.51k|    {
 1317|  1.51k|        each_i(v, 0, last, args...);
 1318|  1.51k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|    837|    {
 1037|    837|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    837|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_16dec_left_visitorEJRjEEEDcT_DpOT0_:
 1036|  2.00k|    {
 1037|  2.00k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.00k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  3.04k|    {
  947|  3.04k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  3.04k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb0ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  3.04k|{
  654|  3.04k|    constexpr auto B  = bits<Pos>;
  655|  3.04k|    constexpr auto BL = bits_leaf<Pos>;
  656|  3.04k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 3.04k, False: 0]
  ------------------
  657|  3.04k|    auto is_leaf = p.shift() == BL;
  658|  3.04k|    auto child   = p.node()->inner()[offset_hint];
  659|  3.04k|    auto lsize   = offset_hint << p.shift();
  660|  3.04k|    auto size    = p.this_size();
  661|  3.04k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  3.04k|    return is_full
  ------------------
  |  Branch (662:12): [True: 3.04k, False: 0]
  ------------------
  663|  3.04k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 1.94k, False: 1.10k]
  ------------------
  664|  3.04k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  3.04k|                      : make_full_pos(child, p.shift() - B)
  666|  1.10k|                            .visit(v, idx - lsize, args...))
  667|  3.04k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 0]
  ------------------
  668|      0|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|      0|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|      0|                            .visit(v, idx - lsize, args...));
  672|  3.04k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  5.11k|    {
  947|  5.11k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  5.11k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  5.11k|{
  654|  5.11k|    constexpr auto B  = bits<Pos>;
  655|  5.11k|    constexpr auto BL = bits_leaf<Pos>;
  656|  5.11k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 5.11k, False: 0]
  ------------------
  657|  5.11k|    auto is_leaf = p.shift() == BL;
  658|  5.11k|    auto child   = p.node()->inner()[offset_hint];
  659|  5.11k|    auto lsize   = offset_hint << p.shift();
  660|  5.11k|    auto size    = p.this_size();
  661|  5.11k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  5.11k|    return is_full
  ------------------
  |  Branch (662:12): [True: 5.11k, False: 0]
  ------------------
  663|  5.11k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 3.70k, False: 1.40k]
  ------------------
  664|  5.11k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  5.11k|                      : make_full_pos(child, p.shift() - B)
  666|  1.40k|                            .visit(v, idx - lsize, args...))
  667|  5.11k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 0]
  ------------------
  668|      0|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|      0|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|      0|                            .visit(v, idx - lsize, args...));
  672|  5.11k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_leftINS1_11dec_visitorEJEEEvT_jDpOT0_:
  873|  5.05k|    {
  874|  5.05k|        return each_left_regular(*this, v, last, args...);
  875|  5.05k|    }
_ZN5immer6detail4rbts17each_left_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_jDpOT1_:
  575|  5.05k|{
  576|  5.05k|    constexpr auto B  = bits<Pos>;
  577|  5.05k|    constexpr auto BL = bits_leaf<Pos>;
  578|  5.05k|    assert(last < p.count());
  ------------------
  |  Branch (578:5): [True: 5.05k, False: 0]
  ------------------
  579|  5.05k|    if (p.shift() == BL) {
  ------------------
  |  Branch (579:9): [True: 1.94k, False: 3.11k]
  ------------------
  580|  1.94k|        auto n = p.node()->inner();
  581|  1.94k|        auto e = n + last;
  582|  5.51k|        for (; n != e; ++n) {
  ------------------
  |  Branch (582:16): [True: 3.57k, False: 1.94k]
  ------------------
  583|  3.57k|            IMMER_PREFETCH(n + 1);
  584|  3.57k|            make_full_leaf_pos(*n).visit(v, args...);
  585|  3.57k|        }
  586|  3.11k|    } else {
  587|  3.11k|        auto n  = p.node()->inner();
  588|  3.11k|        auto e  = n + last;
  589|  3.11k|        auto ss = p.shift() - B;
  590|  5.37k|        for (; n != e; ++n)
  ------------------
  |  Branch (590:16): [True: 2.26k, False: 3.11k]
  ------------------
  591|  2.26k|            make_full_pos(*n, ss).visit(v, args...);
  592|  3.11k|    }
  593|  5.05k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_16dec_left_visitorEJRjEEEDcT_DpOT0_:
 1813|  1.87k|    {
 1814|  1.87k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.87k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|   232k|    {
 1706|   232k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 232k, False: 0]
  ------------------
 1707|   232k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 47.0k, False: 185k]
  ------------------
 1708|   232k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|   232k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|   232k|    {
 1718|   232k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 232k, False: 0]
  ------------------
 1719|   232k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 47.0k, False: 185k]
  |  Branch (1719:9): [True: 232k, False: 0]
  ------------------
 1720|   232k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   232k|        auto child     = node_->inner()[offset_hint];
 1722|   232k|        auto is_leaf   = shift_ == BL;
 1723|   232k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   232k|        auto next_idx  = idx - left_size_hint;
 1725|   232k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 4.01k, False: 228k]
  ------------------
 1726|   232k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  4.01k|                         .visit(v, next_idx, args...)
 1728|   232k|                   : visit_maybe_relaxed_sub(
 1729|   228k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   232k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  4.01k|    {
  145|  4.01k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.01k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|   228k|{
 1839|   228k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 228k, False: 0]
  ------------------
 1840|   228k|    auto relaxed = node->relaxed();
 1841|   228k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 226k, False: 1.69k]
  ------------------
 1842|   226k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 226k, False: 0]
  ------------------
 1843|   226k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   226k|            .visit(v, std::forward<Args>(args)...);
 1845|   226k|    } else {
 1846|  1.69k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.69k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.69k|    }
 1849|   228k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|   226k|    {
 1814|   226k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   226k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.69k|    {
 1037|  1.69k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.69k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|   135k|    {
 1706|   135k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 135k, False: 0]
  ------------------
 1707|   135k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 80.0k, False: 54.9k]
  ------------------
 1708|   135k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|   135k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|   135k|    {
 1718|   135k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 135k, False: 0]
  ------------------
 1719|   135k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 80.0k, False: 54.9k]
  |  Branch (1719:9): [True: 135k, False: 0]
  ------------------
 1720|   135k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   135k|        auto child     = node_->inner()[offset_hint];
 1722|   135k|        auto is_leaf   = shift_ == BL;
 1723|   135k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   135k|        auto next_idx  = idx - left_size_hint;
 1725|   135k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 55.4k, False: 79.6k]
  ------------------
 1726|   135k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  55.4k|                         .visit(v, next_idx, args...)
 1728|   135k|                   : visit_maybe_relaxed_sub(
 1729|  79.6k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   135k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  55.4k|    {
  145|  55.4k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  55.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  79.6k|{
 1839|  79.6k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 79.6k, False: 0]
  ------------------
 1840|  79.6k|    auto relaxed = node->relaxed();
 1841|  79.6k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 78.3k, False: 1.24k]
  ------------------
 1842|  78.3k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 78.3k, False: 0]
  ------------------
 1843|  78.3k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  78.3k|            .visit(v, std::forward<Args>(args)...);
 1845|  78.3k|    } else {
 1846|  1.24k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.24k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.24k|    }
 1849|  79.6k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  78.3k|    {
 1814|  78.3k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  78.3k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.24k|    {
 1037|  1.24k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.24k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  5.72k|    {
 1037|  5.72k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  5.72k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  2.00k|    {
  947|  2.00k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  2.00k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb1ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  2.00k|{
  654|  2.00k|    constexpr auto B  = bits<Pos>;
  655|  2.00k|    constexpr auto BL = bits_leaf<Pos>;
  656|  2.00k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 2.00k, False: 0]
  ------------------
  657|  2.00k|    auto is_leaf = p.shift() == BL;
  658|  2.00k|    auto child   = p.node()->inner()[offset_hint];
  659|  2.00k|    auto lsize   = offset_hint << p.shift();
  660|  2.00k|    auto size    = p.this_size();
  661|  2.00k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  2.00k|    return is_full
  ------------------
  |  Branch (662:12): [True: 1.08k, False: 924]
  ------------------
  663|  2.00k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 0, False: 1.08k]
  ------------------
  664|  1.08k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  1.08k|                      : make_full_pos(child, p.shift() - B)
  666|  1.08k|                            .visit(v, idx - lsize, args...))
  667|  2.00k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 924]
  ------------------
  668|    924|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|    924|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|    924|                            .visit(v, idx - lsize, args...));
  672|  2.00k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  1.08k|    {
 1406|  1.08k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.08k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|    924|    {
 1037|    924|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    924|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcPT_jmT0_DpOT1_:
 1838|  19.8k|{
 1839|  19.8k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 19.8k, False: 0]
  ------------------
 1840|  19.8k|    auto relaxed = node->relaxed();
 1841|  19.8k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 10.1k, False: 9.68k]
  ------------------
 1842|  10.1k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 10.1k, False: 0]
  ------------------
 1843|  10.1k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  10.1k|            .visit(v, std::forward<Args>(args)...);
 1845|  10.1k|    } else {
 1846|  9.68k|        return make_regular_sub_pos(node, shift, size)
 1847|  9.68k|            .visit(v, std::forward<Args>(args)...);
 1848|  9.68k|    }
 1849|  19.8k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcT_DpOT0_:
 1813|  10.1k|    {
 1814|  10.1k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  10.1k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcPT_jmT0_DpOT1_:
 1838|  10.1k|{
 1839|  10.1k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 10.1k, False: 0]
  ------------------
 1840|  10.1k|    auto relaxed = node->relaxed();
 1841|  10.1k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 6.77k, False: 3.37k]
  ------------------
 1842|  6.77k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 6.77k, False: 0]
  ------------------
 1843|  6.77k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  6.77k|            .visit(v, std::forward<Args>(args)...);
 1845|  6.77k|    } else {
 1846|  3.37k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.37k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.37k|    }
 1849|  10.1k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1813|  6.77k|    {
 1814|  6.77k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  6.77k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  34.1k|    {
 1794|  34.1k|        auto child      = node_->inner()[offset];
 1795|  34.1k|        auto child_size = size(offset);
 1796|  34.1k|        auto is_leaf    = shift_ == BL;
 1797|  34.1k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 15.8k, False: 18.2k]
  ------------------
 1798|  34.1k|                       : visit_maybe_relaxed_sub(
 1799|  18.2k|                             child, shift_ - B, child_size, v, args...);
 1800|  34.1k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  16.4k|    {
  145|  16.4k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  16.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1804|  16.4k|    {
 1805|  16.4k|        assert(shift_ == BL);
  ------------------
  |  Branch (1805:9): [True: 16.4k, False: 0]
  ------------------
 1806|  16.4k|        auto child      = node_->inner()[offset];
 1807|  16.4k|        auto child_size = size(offset);
 1808|  16.4k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1809|  16.4k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  17.2k|    {
  145|  17.2k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  17.2k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  18.2k|{
 1839|  18.2k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 18.2k, False: 0]
  ------------------
 1840|  18.2k|    auto relaxed = node->relaxed();
 1841|  18.2k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 16.0k, False: 2.18k]
  ------------------
 1842|  16.0k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 16.0k, False: 0]
  ------------------
 1843|  16.0k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  16.0k|            .visit(v, std::forward<Args>(args)...);
 1845|  16.0k|    } else {
 1846|  2.18k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.18k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.18k|    }
 1849|  18.2k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  16.0k|    {
 1814|  16.0k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  16.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  16.0k|    {
 1794|  16.0k|        auto child      = node_->inner()[offset];
 1795|  16.0k|        auto child_size = size(offset);
 1796|  16.0k|        auto is_leaf    = shift_ == BL;
 1797|  16.0k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 16.0k]
  ------------------
 1798|  16.0k|                       : visit_maybe_relaxed_sub(
 1799|  16.0k|                             child, shift_ - B, child_size, v, args...);
 1800|  16.0k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  16.0k|{
 1839|  16.0k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 16.0k, False: 0]
  ------------------
 1840|  16.0k|    auto relaxed = node->relaxed();
 1841|  16.0k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 15.7k, False: 325]
  ------------------
 1842|  15.7k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 15.7k, False: 0]
  ------------------
 1843|  15.7k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  15.7k|            .visit(v, std::forward<Args>(args)...);
 1845|  15.7k|    } else {
 1846|    325|        return make_regular_sub_pos(node, shift, size)
 1847|    325|            .visit(v, std::forward<Args>(args)...);
 1848|    325|    }
 1849|  16.0k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  15.7k|    {
 1814|  15.7k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  15.7k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    799|    {
 1037|    799|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    799|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  6.55k|    {
 1794|  6.55k|        auto child      = node_->inner()[offset];
 1795|  6.55k|        auto child_size = size(offset);
 1796|  6.55k|        auto is_leaf    = shift_ == BL;
 1797|  6.55k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 3.81k, False: 2.73k]
  ------------------
 1798|  6.55k|                       : visit_maybe_relaxed_sub(
 1799|  2.73k|                             child, shift_ - B, child_size, v, args...);
 1800|  6.55k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  3.81k|    {
  145|  3.81k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  3.81k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1025|  3.81k|    {
 1026|  3.81k|        assert(shift_ == BL);
  ------------------
  |  Branch (1026:9): [True: 3.81k, False: 0]
  ------------------
 1027|  3.81k|        auto child   = node_->inner()[idx];
 1028|  3.81k|        auto lsize   = size(idx);
 1029|  3.81k|        auto is_full = idx + 1 < count();
 1030|  3.81k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1030:16): [True: 3.00k, False: 809]
  ------------------
 1031|  3.81k|                       : make_leaf_sub_pos(child, lsize).visit(v, args...);
 1032|  3.81k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  207|  10.6k|    {
  208|  10.6k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  10.6k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  2.73k|{
 1839|  2.73k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 2.73k, False: 0]
  ------------------
 1840|  2.73k|    auto relaxed = node->relaxed();
 1841|  2.73k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.17k, False: 561]
  ------------------
 1842|  2.17k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.17k, False: 0]
  ------------------
 1843|  2.17k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.17k|            .visit(v, std::forward<Args>(args)...);
 1845|  2.17k|    } else {
 1846|    561|        return make_regular_sub_pos(node, shift, size)
 1847|    561|            .visit(v, std::forward<Args>(args)...);
 1848|    561|    }
 1849|  2.73k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  2.17k|    {
 1814|  2.17k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.17k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1007|  2.17k|    {
 1008|  2.17k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 2.17k, False: 0]
  ------------------
 1009|  2.17k|        auto is_leaf = shift_ == BL;
 1010|  2.17k|        auto child   = node_->inner()[idx];
 1011|  2.17k|        auto lsize   = size(idx);
 1012|  2.17k|        auto is_full = idx + 1 < count();
 1013|  2.17k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 1.70k, False: 474]
  ------------------
 1014|  2.17k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 0, False: 1.70k]
  ------------------
 1015|  1.70k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  1.70k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  2.17k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 0, False: 474]
  ------------------
 1018|    474|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|    474|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|    474|                                .visit(v, args...));
 1021|  2.17k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  2.17k|    {
 1406|  2.17k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.17k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  8.95k|    {
 1794|  8.95k|        auto child      = node_->inner()[offset];
 1795|  8.95k|        auto child_size = size(offset);
 1796|  8.95k|        auto is_leaf    = shift_ == BL;
 1797|  8.95k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 7.62k, False: 1.32k]
  ------------------
 1798|  8.95k|                       : visit_maybe_relaxed_sub(
 1799|  1.32k|                             child, shift_ - B, child_size, v, args...);
 1800|  8.95k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  7.62k|    {
  145|  7.62k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  7.62k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1396|  7.62k|    {
 1397|  7.62k|        assert(shift_ == BL);
  ------------------
  |  Branch (1397:9): [True: 7.62k, False: 0]
  ------------------
 1398|  7.62k|        assert(idx < count());
  ------------------
  |  Branch (1398:9): [True: 7.62k, False: 0]
  ------------------
 1399|  7.62k|        auto child = node_->inner()[idx];
 1400|  7.62k|        return make_full_leaf_pos(child).visit(v, args...);
 1401|  7.62k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  1.32k|{
 1839|  1.32k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.32k, False: 0]
  ------------------
 1840|  1.32k|    auto relaxed = node->relaxed();
 1841|  1.32k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 476, False: 851]
  ------------------
 1842|    476|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 476, False: 0]
  ------------------
 1843|    476|        return make_relaxed_pos(node, shift, relaxed)
 1844|    476|            .visit(v, std::forward<Args>(args)...);
 1845|    851|    } else {
 1846|    851|        return make_regular_sub_pos(node, shift, size)
 1847|    851|            .visit(v, std::forward<Args>(args)...);
 1848|    851|    }
 1849|  1.32k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|    476|    {
 1814|    476|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    476|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1386|    476|    {
 1387|    476|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 476, False: 0]
  ------------------
 1388|    476|        auto is_leaf = shift_ == BL;
 1389|    476|        auto child   = node_->inner()[idx];
 1390|    476|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 0, False: 476]
  ------------------
 1391|    476|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|    476|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    851|    {
 1037|    851|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    851|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1386|    851|    {
 1387|    851|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 851, False: 0]
  ------------------
 1388|    851|        auto is_leaf = shift_ == BL;
 1389|    851|        auto child   = node_->inner()[idx];
 1390|    851|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 0, False: 851]
  ------------------
 1391|    851|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|    851|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  1.41k|    {
 1406|  1.41k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.41k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
 1222|  7.50k|    {
 1223|  7.50k|        auto p  = node_->inner();
 1224|  7.50k|        auto p2 = other->inner();
 1225|  7.50k|        auto e  = p + branches<B>;
 1226|  7.50k|        if (shift_ == BL) {
  ------------------
  |  Branch (1226:13): [True: 5.18k, False: 2.32k]
  ------------------
 1227|  25.5k|            for (; p != e; ++p, ++p2) {
  ------------------
  |  Branch (1227:20): [True: 23.3k, False: 2.14k]
  ------------------
 1228|  23.3k|                IMMER_PREFETCH(p + 1);
 1229|  23.3k|                if (!make_full_leaf_pos(*p).visit(v, *p2, args...))
  ------------------
  |  Branch (1229:21): [True: 3.03k, False: 20.3k]
  ------------------
 1230|  3.03k|                    return false;
 1231|  23.3k|            }
 1232|  5.18k|        } else {
 1233|  2.32k|            auto ss = shift_ - B;
 1234|  9.57k|            for (; p != e; ++p, ++p2)
  ------------------
  |  Branch (1234:20): [True: 8.73k, False: 839]
  ------------------
 1235|  8.73k|                if (!make_full_pos(*p, ss).visit(v, *p2, args...))
  ------------------
  |  Branch (1235:21): [True: 1.48k, False: 7.24k]
  ------------------
 1236|  1.48k|                    return false;
 1237|  2.32k|        }
 1238|  2.98k|        return true;
 1239|  7.50k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  207|  29.6k|    {
  208|  29.6k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  29.6k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
 1405|  19.0k|    {
 1406|  19.0k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  19.0k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
  837|  7.01k|    {
  838|  7.01k|        return each_pred_zip_regular(*this, v, other, args...);
  839|  7.01k|    }
_ZN5immer6detail4rbts21each_pred_zip_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_14equals_visitorEJEEEbOT_T0_PNSt3__15decayISH_E4type6node_tEDpOT1_:
  392|  7.01k|{
  393|  7.01k|    constexpr auto B  = bits<Pos>;
  394|  7.01k|    constexpr auto BL = bits_leaf<Pos>;
  395|       |
  396|  7.01k|    auto n    = p.node()->inner();
  397|  7.01k|    auto n2   = other->inner();
  398|  7.01k|    auto last = p.count() - 1;
  399|  7.01k|    auto e    = n + last;
  400|  7.01k|    if (p.shift() == BL) {
  ------------------
  |  Branch (400:9): [True: 1.41k, False: 5.59k]
  ------------------
  401|  3.39k|        for (; n != e; ++n, ++n2) {
  ------------------
  |  Branch (401:16): [True: 2.57k, False: 817]
  ------------------
  402|  2.57k|            IMMER_PREFETCH(n + 1);
  403|  2.57k|            IMMER_PREFETCH(n2 + 1);
  404|  2.57k|            if (!make_full_leaf_pos(*n).visit(v, *n2, args...))
  ------------------
  |  Branch (404:17): [True: 601, False: 1.97k]
  ------------------
  405|    601|                return false;
  406|  2.57k|        }
  407|    817|        return make_leaf_pos(*n, p.size()).visit(v, *n2, args...);
  408|  5.59k|    } else {
  409|  5.59k|        auto ss = p.shift() - B;
  410|  10.6k|        for (; n != e; ++n, ++n2)
  ------------------
  |  Branch (410:16): [True: 7.47k, False: 3.15k]
  ------------------
  411|  7.47k|            if (!make_full_pos(*n, ss).visit(v, *n2, args...))
  ------------------
  |  Branch (411:17): [True: 2.43k, False: 5.03k]
  ------------------
  412|  2.43k|                return false;
  413|  3.15k|        return make_regular_pos(*n, ss, p.size()).visit(v, *n2, args...);
  414|  5.59k|    }
  415|  7.01k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  112|  2.86k|    {
  113|  2.86k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  2.86k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  336|  4.17k|    {
  337|  4.17k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  4.17k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
  255|  3.50k|    {
  256|  3.50k|        return each_pred_zip_regular(*this, v, other, args...);
  257|  3.50k|    }
_ZN5immer6detail4rbts21each_pred_zip_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_14equals_visitorEJEEEbOT_T0_PNSt3__15decayISH_E4type6node_tEDpOT1_:
  392|  3.50k|{
  393|  3.50k|    constexpr auto B  = bits<Pos>;
  394|  3.50k|    constexpr auto BL = bits_leaf<Pos>;
  395|       |
  396|  3.50k|    auto n    = p.node()->inner();
  397|  3.50k|    auto n2   = other->inner();
  398|  3.50k|    auto last = p.count() - 1;
  399|  3.50k|    auto e    = n + last;
  400|  3.50k|    if (p.shift() == BL) {
  ------------------
  |  Branch (400:9): [True: 2.27k, False: 1.22k]
  ------------------
  401|  5.70k|        for (; n != e; ++n, ++n2) {
  ------------------
  |  Branch (401:16): [True: 3.66k, False: 2.04k]
  ------------------
  402|  3.66k|            IMMER_PREFETCH(n + 1);
  403|  3.66k|            IMMER_PREFETCH(n2 + 1);
  404|  3.66k|            if (!make_full_leaf_pos(*n).visit(v, *n2, args...))
  ------------------
  |  Branch (404:17): [True: 231, False: 3.42k]
  ------------------
  405|    231|                return false;
  406|  3.66k|        }
  407|  2.04k|        return make_leaf_pos(*n, p.size()).visit(v, *n2, args...);
  408|  2.27k|    } else {
  409|  1.22k|        auto ss = p.shift() - B;
  410|  3.88k|        for (; n != e; ++n, ++n2)
  ------------------
  |  Branch (410:16): [True: 2.86k, False: 1.02k]
  ------------------
  411|  2.86k|            if (!make_full_pos(*n, ss).visit(v, *n2, args...))
  ------------------
  |  Branch (411:17): [True: 205, False: 2.65k]
  ------------------
  412|    205|                return false;
  413|  1.02k|        return make_regular_pos(*n, ss, p.size()).visit(v, *n2, args...);
  414|  1.22k|    }
  415|  3.50k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1386|  5.61k|    {
 1387|  5.61k|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 5.61k, False: 0]
  ------------------
 1388|  5.61k|        auto is_leaf = shift_ == BL;
 1389|  5.61k|        auto child   = node_->inner()[idx];
 1390|  5.61k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 4.46k, False: 1.14k]
  ------------------
 1391|  5.61k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|  5.61k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  207|   195k|    {
  208|   195k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   195k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_18region_for_visitorIiEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  4.00M|{
 1839|  4.00M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 4.00M, False: 0]
  ------------------
 1840|  4.00M|    auto relaxed = node->relaxed();
 1841|  4.00M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 3.78M, False: 216k]
  ------------------
 1842|  3.78M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 3.78M, False: 0]
  ------------------
 1843|  3.78M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  3.78M|            .visit(v, std::forward<Args>(args)...);
 1845|  3.78M|    } else {
 1846|   216k|        return make_regular_sub_pos(node, shift, size)
 1847|   216k|            .visit(v, std::forward<Args>(args)...);
 1848|   216k|    }
 1849|  4.00M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1813|  3.78M|    {
 1814|  3.78M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  3.78M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
 1679|  3.78M|    {
 1680|  3.78M|        return towards_oh(v, idx, subindex(idx), args...);
 1681|  3.78M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_18region_for_visitorIiEEJEEEDcT_mjDpOT0_:
 1686|  3.78M|    {
 1687|  3.78M|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 3.78M, False: 0]
  ------------------
 1688|  3.78M|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 2.68M, False: 1.10M]
  ------------------
 1689|  3.78M|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  3.78M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_18region_for_visitorIiEEJEEEDcT_mjmDpOT0_:
 1698|  3.78M|    {
 1699|  3.78M|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  3.78M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18region_for_visitorIiEEJEEEDcT_mjmDpOT0_:
 1717|  3.78M|    {
 1718|  3.78M|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 3.78M, False: 0]
  ------------------
 1719|  3.78M|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 2.68M, False: 1.10M]
  |  Branch (1719:9): [True: 3.78M, False: 0]
  ------------------
 1720|  3.78M|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  3.78M|        auto child     = node_->inner()[offset_hint];
 1722|  3.78M|        auto is_leaf   = shift_ == BL;
 1723|  3.78M|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  3.78M|        auto next_idx  = idx - left_size_hint;
 1725|  3.78M|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 848k, False: 2.93M]
  ------------------
 1726|  3.78M|                   ? make_leaf_sub_pos(child, next_size)
 1727|   848k|                         .visit(v, next_idx, args...)
 1728|  3.78M|                   : visit_maybe_relaxed_sub(
 1729|  2.93M|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  3.78M|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  144|   848k|    {
  145|   848k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   848k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1036|   216k|    {
 1037|   216k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   216k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
  919|   216k|    {
  920|   216k|        return towards_oh_ch_regular(
  921|   216k|            *this, v, idx, index(idx), count(), args...);
  922|   216k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_18region_for_visitorIiEEJEEEDcOT_T0_mjjDpOT1_:
  632|   216k|{
  633|   216k|    constexpr auto B  = bits<Pos>;
  634|   216k|    constexpr auto BL = bits_leaf<Pos>;
  635|   216k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 216k, False: 0]
  ------------------
  636|   216k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 216k, False: 0]
  ------------------
  637|   216k|    auto is_leaf = p.shift() == BL;
  638|   216k|    auto child   = p.node()->inner()[offset_hint];
  639|   216k|    auto is_full = offset_hint + 1 != count_hint;
  640|   216k|    return is_full
  ------------------
  |  Branch (640:12): [True: 175k, False: 41.1k]
  ------------------
  641|   216k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 43.0k, False: 132k]
  ------------------
  642|   175k|                          : make_full_pos(child, p.shift() - B)
  643|   132k|                                .visit(v, idx, args...))
  644|   216k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 10.2k, False: 30.9k]
  ------------------
  645|  41.1k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  41.1k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  30.9k|                            .visit(v, idx, args...));
  648|   216k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  207|   202k|    {
  208|   202k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   202k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1405|   296k|    {
 1406|   296k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   296k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
 1322|   296k|    {
 1323|   296k|        return towards_oh(v, idx, index(idx), args...);
 1324|   296k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE10towards_ohINS1_18region_for_visitorIiEEJEEEDcT_mjDpOT0_:
 1336|   296k|    {
 1337|   296k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 296k, False: 0]
  ------------------
 1338|   296k|        auto is_leaf = shift_ == BL;
 1339|   296k|        auto child   = node_->inner()[offset_hint];
 1340|   296k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 152k, False: 143k]
  ------------------
 1341|   296k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|   296k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|   296k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  112|  14.2k|    {
  113|  14.2k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  14.2k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  336|  36.1k|    {
  337|  36.1k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  36.1k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
  297|  36.1k|    {
  298|  36.1k|        return towards_oh_ch_regular(
  299|  36.1k|            *this, v, idx, index(idx), count(), args...);
  300|  36.1k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_18region_for_visitorIiEEJEEEDcOT_T0_mjjDpOT1_:
  632|  36.1k|{
  633|  36.1k|    constexpr auto B  = bits<Pos>;
  634|  36.1k|    constexpr auto BL = bits_leaf<Pos>;
  635|  36.1k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 36.1k, False: 0]
  ------------------
  636|  36.1k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 36.1k, False: 0]
  ------------------
  637|  36.1k|    auto is_leaf = p.shift() == BL;
  638|  36.1k|    auto child   = p.node()->inner()[offset_hint];
  639|  36.1k|    auto is_full = offset_hint + 1 != count_hint;
  640|  36.1k|    return is_full
  ------------------
  |  Branch (640:12): [True: 26.8k, False: 9.24k]
  ------------------
  641|  36.1k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 6.95k, False: 19.9k]
  ------------------
  642|  26.8k|                          : make_full_pos(child, p.shift() - B)
  643|  19.9k|                                .visit(v, idx, args...))
  644|  36.1k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 4.05k, False: 5.19k]
  ------------------
  645|  9.24k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  9.24k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  5.19k|                            .visit(v, idx, args...));
  648|  36.1k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1405|  21.1k|    {
 1406|  21.1k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  21.1k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
 1202|  21.1k|    {
 1203|  21.1k|        auto p = node_->inner();
 1204|  21.1k|        auto e = p + branches<B>;
 1205|  21.1k|        if (shift_ == BL) {
  ------------------
  |  Branch (1205:13): [True: 19.4k, False: 1.69k]
  ------------------
 1206|   172k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1206:20): [True: 153k, False: 18.8k]
  ------------------
 1207|   153k|                IMMER_PREFETCH(p + 1);
 1208|   153k|                if (!make_full_leaf_pos(*p).visit(v, args...))
  ------------------
  |  Branch (1208:21): [True: 676, False: 152k]
  ------------------
 1209|    676|                    return false;
 1210|   153k|            }
 1211|  19.4k|        } else {
 1212|  1.69k|            auto ss = shift_ - B;
 1213|  14.2k|            for (; p != e; ++p)
  ------------------
  |  Branch (1213:20): [True: 12.7k, False: 1.45k]
  ------------------
 1214|  12.7k|                if (!make_full_pos(*p, ss).visit(v, args...))
  ------------------
  |  Branch (1214:21): [True: 240, False: 12.5k]
  ------------------
 1215|    240|                    return false;
 1216|  1.69k|        }
 1217|  20.2k|        return true;
 1218|  21.1k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    561|    {
 1037|    561|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    561|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1007|    561|    {
 1008|    561|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 561, False: 0]
  ------------------
 1009|    561|        auto is_leaf = shift_ == BL;
 1010|    561|        auto child   = node_->inner()[idx];
 1011|    561|        auto lsize   = size(idx);
 1012|    561|        auto is_full = idx + 1 < count();
 1013|    561|        return is_full
  ------------------
  |  Branch (1013:16): [True: 561, False: 0]
  ------------------
 1014|    561|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 0, False: 561]
  ------------------
 1015|    561|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|    561|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|    561|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 0, False: 0]
  ------------------
 1018|      0|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|      0|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|      0|                                .visit(v, args...));
 1021|    561|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  1.92k|    {
 1037|  1.92k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.92k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1007|  3.17k|    {
 1008|  3.17k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 3.17k, False: 0]
  ------------------
 1009|  3.17k|        auto is_leaf = shift_ == BL;
 1010|  3.17k|        auto child   = node_->inner()[idx];
 1011|  3.17k|        auto lsize   = size(idx);
 1012|  3.17k|        auto is_full = idx + 1 < count();
 1013|  3.17k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 1.38k, False: 1.79k]
  ------------------
 1014|  3.17k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 930, False: 453]
  ------------------
 1015|  1.38k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  1.38k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  3.17k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 947, False: 845]
  ------------------
 1018|  1.79k|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|  1.79k|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|    845|                                .visit(v, args...));
 1021|  3.17k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  144|   812k|    {
  145|   812k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   812k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1036|  8.90k|    {
 1037|  8.90k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  8.90k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
  831|  8.90k|    {
  832|  8.90k|        return each_pred_regular(*this, v, args...);
  833|  8.90k|    }
_ZN5immer6detail4rbts17each_pred_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSC_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEEbSM_SN_DpOT1_:
  365|  8.90k|{
  366|  8.90k|    constexpr auto B  = bits<Pos>;
  367|  8.90k|    constexpr auto BL = bits_leaf<Pos>;
  368|  8.90k|    auto n            = p.node()->inner();
  369|  8.90k|    auto last         = p.count() - 1;
  370|  8.90k|    auto e            = n + last;
  371|  8.90k|    if (p.shift() == BL) {
  ------------------
  |  Branch (371:9): [True: 5.64k, False: 3.25k]
  ------------------
  372|  36.6k|        for (; n != e; ++n) {
  ------------------
  |  Branch (372:16): [True: 31.2k, False: 5.43k]
  ------------------
  373|  31.2k|            IMMER_PREFETCH(n + 1);
  374|  31.2k|            if (!make_full_leaf_pos(*n).visit(v, args...))
  ------------------
  |  Branch (374:17): [True: 216, False: 31.0k]
  ------------------
  375|    216|                return false;
  376|  31.2k|        }
  377|  5.43k|        return make_leaf_pos(*n, p.size()).visit(v, args...);
  378|  5.64k|    } else {
  379|  3.25k|        auto ss = p.shift() - B;
  380|  7.92k|        for (; n != e; ++n)
  ------------------
  |  Branch (380:16): [True: 5.11k, False: 2.80k]
  ------------------
  381|  5.11k|            if (!make_full_pos(*n, ss).visit(v, args...))
  ------------------
  |  Branch (381:17): [True: 448, False: 4.66k]
  ------------------
  382|    448|                return false;
  383|  2.80k|        return make_regular_pos(*n, ss, p.size()).visit(v, args...);
  384|  3.25k|    }
  385|  8.90k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  112|  7.81k|    {
  113|  7.81k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  7.81k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  336|  3.92k|    {
  337|  3.92k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.92k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
  249|  3.92k|    {
  250|  3.92k|        return each_pred_regular(*this, v, args...);
  251|  3.92k|    }
_ZN5immer6detail4rbts17each_pred_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSC_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEEbSM_SN_DpOT1_:
  365|  3.92k|{
  366|  3.92k|    constexpr auto B  = bits<Pos>;
  367|  3.92k|    constexpr auto BL = bits_leaf<Pos>;
  368|  3.92k|    auto n            = p.node()->inner();
  369|  3.92k|    auto last         = p.count() - 1;
  370|  3.92k|    auto e            = n + last;
  371|  3.92k|    if (p.shift() == BL) {
  ------------------
  |  Branch (371:9): [True: 2.59k, False: 1.33k]
  ------------------
  372|  8.25k|        for (; n != e; ++n) {
  ------------------
  |  Branch (372:16): [True: 5.88k, False: 2.37k]
  ------------------
  373|  5.88k|            IMMER_PREFETCH(n + 1);
  374|  5.88k|            if (!make_full_leaf_pos(*n).visit(v, args...))
  ------------------
  |  Branch (374:17): [True: 214, False: 5.66k]
  ------------------
  375|    214|                return false;
  376|  5.88k|        }
  377|  2.37k|        return make_leaf_pos(*n, p.size()).visit(v, args...);
  378|  2.59k|    } else {
  379|  1.33k|        auto ss = p.shift() - B;
  380|  2.81k|        for (; n != e; ++n)
  ------------------
  |  Branch (380:16): [True: 1.70k, False: 1.11k]
  ------------------
  381|  1.70k|            if (!make_full_pos(*n, ss).visit(v, args...))
  ------------------
  |  Branch (381:17): [True: 215, False: 1.48k]
  ------------------
  382|    215|                return false;
  383|  1.11k|        return make_regular_pos(*n, ss, p.size()).visit(v, args...);
  384|  1.33k|    }
  385|  3.92k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  2.18k|    {
 1037|  2.18k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.18k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  2.18k|    {
 1794|  2.18k|        auto child      = node_->inner()[offset];
 1795|  2.18k|        auto child_size = size(offset);
 1796|  2.18k|        auto is_leaf    = shift_ == BL;
 1797|  2.18k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 2.18k]
  ------------------
 1798|  2.18k|                       : visit_maybe_relaxed_sub(
 1799|  2.18k|                             child, shift_ - B, child_size, v, args...);
 1800|  2.18k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  2.18k|{
 1839|  2.18k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 2.18k, False: 0]
  ------------------
 1840|  2.18k|    auto relaxed = node->relaxed();
 1841|  2.18k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 257, False: 1.92k]
  ------------------
 1842|    257|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 257, False: 0]
  ------------------
 1843|    257|        return make_relaxed_pos(node, shift, relaxed)
 1844|    257|            .visit(v, std::forward<Args>(args)...);
 1845|  1.92k|    } else {
 1846|  1.92k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.92k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.92k|    }
 1849|  2.18k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|    257|    {
 1814|    257|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    257|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1007|  3.87k|    {
 1008|  3.87k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 3.87k, False: 0]
  ------------------
 1009|  3.87k|        auto is_leaf = shift_ == BL;
 1010|  3.87k|        auto child   = node_->inner()[idx];
 1011|  3.87k|        auto lsize   = size(idx);
 1012|  3.87k|        auto is_full = idx + 1 < count();
 1013|  3.87k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 3.31k, False: 563]
  ------------------
 1014|  3.87k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 1.67k, False: 1.64k]
  ------------------
 1015|  3.31k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  3.31k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  3.87k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 563, False: 0]
  ------------------
 1018|    563|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|    563|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|      0|                                .visit(v, args...));
 1021|  3.87k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  207|  5.07k|    {
  208|  5.07k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  5.07k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_13full_leaf_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1804|  5.07k|    {
 1805|  5.07k|        assert(shift_ == BL);
  ------------------
  |  Branch (1805:9): [True: 5.07k, False: 0]
  ------------------
 1806|  5.07k|        auto child      = node_->inner()[offset];
 1807|  5.07k|        auto child_size = size(offset);
 1808|  5.07k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1809|  5.07k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_13full_leaf_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  5.07k|    {
  145|  5.07k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  5.07k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  1.99k|    {
 1406|  1.99k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.99k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  1.99k|    {
 1794|  1.99k|        auto child      = node_->inner()[offset];
 1795|  1.99k|        auto child_size = size(offset);
 1796|  1.99k|        auto is_leaf    = shift_ == BL;
 1797|  1.99k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 1.99k]
  ------------------
 1798|  1.99k|                       : visit_maybe_relaxed_sub(
 1799|  1.99k|                             child, shift_ - B, child_size, v, args...);
 1800|  1.99k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  1.99k|{
 1839|  1.99k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.99k, False: 0]
  ------------------
 1840|  1.99k|    auto relaxed = node->relaxed();
 1841|  1.99k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.12k, False: 876]
  ------------------
 1842|  1.12k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.12k, False: 0]
  ------------------
 1843|  1.12k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.12k|            .visit(v, std::forward<Args>(args)...);
 1845|  1.12k|    } else {
 1846|    876|        return make_regular_sub_pos(node, shift, size)
 1847|    876|            .visit(v, std::forward<Args>(args)...);
 1848|    876|    }
 1849|  1.99k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  1.12k|    {
 1814|  1.12k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.12k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1386|  3.75k|    {
 1387|  3.75k|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 3.75k, False: 0]
  ------------------
 1388|  3.75k|        auto is_leaf = shift_ == BL;
 1389|  3.75k|        auto child   = node_->inner()[idx];
 1390|  3.75k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 3.40k, False: 357]
  ------------------
 1391|  3.75k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|  3.75k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    876|    {
 1037|    876|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    876|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1793|  43.1k|    {
 1794|  43.1k|        auto child      = node_->inner()[offset];
 1795|  43.1k|        auto child_size = size(offset);
 1796|  43.1k|        auto is_leaf    = shift_ == BL;
 1797|  43.1k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 19.0k, False: 24.1k]
  ------------------
 1798|  43.1k|                       : visit_maybe_relaxed_sub(
 1799|  24.1k|                             child, shift_ - B, child_size, v, args...);
 1800|  43.1k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSI_T0_E_EEEDcPSI_jmSK_DpOT1_:
 1838|   128k|{
 1839|   128k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 128k, False: 0]
  ------------------
 1840|   128k|    auto relaxed = node->relaxed();
 1841|   128k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 120k, False: 8.05k]
  ------------------
 1842|   120k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 120k, False: 0]
  ------------------
 1843|   120k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   120k|            .visit(v, std::forward<Args>(args)...);
 1845|   120k|    } else {
 1846|  8.05k|        return make_regular_sub_pos(node, shift, size)
 1847|  8.05k|            .visit(v, std::forward<Args>(args)...);
 1848|  8.05k|    }
 1849|   128k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1813|   120k|    {
 1814|   120k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   120k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
 1482|   120k|    {
 1483|   120k|        auto p = node_->inner();
 1484|   120k|        auto s = size_t{};
 1485|   120k|        auto n = count();
 1486|   120k|        if (shift_ == BL) {
  ------------------
  |  Branch (1486:13): [True: 105k, False: 14.5k]
  ------------------
 1487|   898k|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1487:39): [True: 792k, False: 105k]
  ------------------
 1488|   792k|                IMMER_PREFETCH(p + i + 1);
 1489|   792k|                if (!make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
  ------------------
  |  Branch (1489:21): [True: 304, False: 792k]
  ------------------
 1490|   792k|                         .visit(v, args...))
 1491|    304|                    return false;
 1492|   792k|                s = relaxed_->d.sizes[i];
 1493|   792k|            }
 1494|   105k|        } else {
 1495|  14.5k|            auto ss = shift_ - B;
 1496|   118k|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1496:39): [True: 104k, False: 14.2k]
  ------------------
 1497|   104k|                if (!visit_maybe_relaxed_sub(
  ------------------
  |  Branch (1497:21): [True: 260, False: 103k]
  ------------------
 1498|   104k|                        p[i], ss, relaxed_->d.sizes[i] - s, v, args...))
 1499|    260|                    return false;
 1500|   103k|                s = relaxed_->d.sizes[i];
 1501|   103k|            }
 1502|  14.5k|        }
 1503|   119k|        return true;
 1504|   120k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1036|  3.37k|    {
 1037|  3.37k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.37k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE15first_sub_innerINS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcT_DpOT0_:
 1783|    973|    {
 1784|    973|        assert(shift_ > BL);
  ------------------
  |  Branch (1784:9): [True: 973, False: 0]
  ------------------
 1785|    973|        auto child      = node_->inner()[0];
 1786|    973|        auto child_size = relaxed_->d.sizes[0];
 1787|    973|        return visit_maybe_relaxed_sub(
 1788|    973|            child, shift_ - B, child_size, v, args...);
 1789|    973|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcPT_jmT0_DpOT1_:
 1838|    973|{
 1839|    973|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 973, False: 0]
  ------------------
 1840|    973|    auto relaxed = node->relaxed();
 1841|    973|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 973, False: 0]
  ------------------
 1842|    973|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 973, False: 0]
  ------------------
 1843|    973|        return make_relaxed_pos(node, shift, relaxed)
 1844|    973|            .visit(v, std::forward<Args>(args)...);
 1845|    973|    } else {
 1846|      0|        return make_regular_sub_pos(node, shift, size)
 1847|      0|            .visit(v, std::forward<Args>(args)...);
 1848|      0|    }
 1849|    973|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcT_DpOT0_:
 1813|    973|    {
 1814|    973|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    973|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcPT_jmT0_DpOT1_:
 1838|  9.68k|{
 1839|  9.68k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 9.68k, False: 0]
  ------------------
 1840|  9.68k|    auto relaxed = node->relaxed();
 1841|  9.68k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.09k, False: 7.59k]
  ------------------
 1842|  2.09k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.09k, False: 0]
  ------------------
 1843|  2.09k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.09k|            .visit(v, std::forward<Args>(args)...);
 1845|  7.59k|    } else {
 1846|  7.59k|        return make_regular_sub_pos(node, shift, size)
 1847|  7.59k|            .visit(v, std::forward<Args>(args)...);
 1848|  7.59k|    }
 1849|  9.68k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1813|  2.09k|    {
 1814|  2.09k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.09k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1036|  7.59k|    {
 1037|  7.59k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  7.59k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcT_DpOT0_:
 1036|  9.68k|    {
 1037|  9.68k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  9.68k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRKPSC_EEEDcT_DpOT0_:
  144|  6.51k|    {
  145|  6.51k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  6.51k|    }

_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2Ev:
  114|  2.81M|        : size{0}
  115|  2.81M|        , shift{BL}
  116|  2.81M|        , root{empty_root()}
  117|  2.81M|        , tail{empty_tail()}
  118|  2.81M|    {
  119|       |        assert(check_tree());
  ------------------
  |  Branch (119:9): [True: 2.81M, False: 0]
  ------------------
  120|  2.81M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10empty_rootEv:
   61|  2.82M|    {
   62|  2.82M|        static const auto empty_ = [] {
   63|  2.82M|            constexpr auto size = node_t::sizeof_inner_n(0);
   64|  2.82M|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   65|  2.82M|                storage;
   66|  2.82M|            return node_t::make_inner_n_into(&storage, size, 0u);
   67|  2.82M|        }();
   68|  2.82M|        return empty_->inc();
   69|  2.82M|    }
_ZZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10empty_rootEvENKUlvE_clEv:
   62|      1|        static const auto empty_ = [] {
   63|      1|            constexpr auto size = node_t::sizeof_inner_n(0);
   64|      1|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   65|      1|                storage;
   66|      1|            return node_t::make_inner_n_into(&storage, size, 0u);
   67|      1|        }();
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10empty_tailEv:
   72|  2.81M|    {
   73|  2.81M|        static const auto empty_ = [] {
   74|  2.81M|            constexpr auto size = node_t::sizeof_leaf_n(0);
   75|  2.81M|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   76|  2.81M|                storage;
   77|  2.81M|            return node_t::make_leaf_n_into(&storage, size, 0u);
   78|  2.81M|        }();
   79|  2.81M|        return empty_->inc();
   80|  2.81M|    }
_ZZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10empty_tailEvENKUlvE_clEv:
   73|      1|        static const auto empty_ = [] {
   74|      1|            constexpr auto size = node_t::sizeof_leaf_n(0);
   75|      1|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   76|      1|                storage;
   77|      1|            return node_t::make_leaf_n_into(&storage, size, 0u);
   78|      1|        }();
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10check_treeEv:
 1372|  5.86M|    {
 1373|  5.86M|        IMMER_INVALID_STATE_ASSERT(shift <= sizeof(size_t) * 8 - BL);
  ------------------
  |  |   32|  5.86M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 1.56k, False: 5.86M]
  |  |  ------------------
  |  |   33|  5.86M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|  1.56k|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1374|  5.86M|        IMMER_INVALID_STATE_ASSERT(shift >= BL);
  ------------------
  |  |   32|  5.86M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 5.86M]
  |  |  ------------------
  |  |   33|  5.86M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1375|  5.86M|        IMMER_INVALID_STATE_ASSERT(tail_offset() <= size);
  ------------------
  |  |   32|  5.86M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 5.86M]
  |  |  ------------------
  |  |   33|  5.86M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1376|  5.86M|        IMMER_INVALID_STATE_ASSERT(tail_size() <= branches<BL>);
  ------------------
  |  |   32|  5.86M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 5.86M]
  |  |  ------------------
  |  |   33|  5.86M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1377|       |#if IMMER_DEBUG_DEEP_CHECK
 1378|       |        IMMER_INVALID_STATE_ASSERT(check_root());
 1379|       |        IMMER_INVALID_STATE_ASSERT(check_tail());
 1380|       |#endif
 1381|  5.86M|        return true;
 1382|  5.86M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11tail_offsetEv:
  197|  28.9M|    {
  198|  28.9M|        auto r = root->relaxed();
  199|  28.9M|        assert(r == nullptr || r->d.count);
  ------------------
  |  Branch (199:9): [True: 14.6M, False: 14.3M]
  |  Branch (199:9): [True: 14.3M, False: 0]
  |  Branch (199:9): [True: 28.9M, False: 0]
  ------------------
  200|  28.9M|        return r      ? r->d.sizes[r->d.count - 1]
  ------------------
  |  Branch (200:16): [True: 14.3M, False: 14.6M]
  ------------------
  201|  28.9M|               : size ? (size - 1) & ~mask<BL>
  ------------------
  |  Branch (201:18): [True: 6.16M, False: 8.45M]
  ------------------
  202|       |                      /* otherwise */
  203|  14.6M|                      : 0;
  204|  28.9M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9tail_sizeEv:
  194|  6.17M|    auto tail_size() const { return size - tail_offset(); }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EED2Ev:
  184|  5.86M|    ~rrbtree() { dec(); }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE3decEv:
  192|  5.86M|    void dec() const { traverse(dec_visitor()); }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE8traverseINS1_11dec_visitorEJEEEvT_DpOT0_:
  208|  5.86M|    {
  209|  5.86M|        auto tail_off  = tail_offset();
  210|  5.86M|        auto tail_size = size - tail_off;
  211|       |
  212|  5.86M|        if (tail_off)
  ------------------
  |  Branch (212:13): [True: 2.85M, False: 3.00M]
  ------------------
  213|  2.85M|            visit_maybe_relaxed_sub(root, shift, tail_off, v, args...);
  214|  3.00M|        else
  215|  3.00M|            make_empty_regular_pos(root).visit(v, args...);
  216|       |
  217|  5.86M|        if (tail_size)
  ------------------
  |  Branch (217:13): [True: 3.04M, False: 2.81M]
  ------------------
  218|  3.04M|            make_leaf_sub_pos(tail, tail_size).visit(v, args...);
  219|  2.81M|        else
  220|  2.81M|            make_empty_leaf_pos(tail).visit(v, args...);
  221|  5.86M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9push_backEi:
  500|   279k|    {
  501|   279k|        auto ts = tail_size();
  502|   279k|        if (ts < branches<BL>) {
  ------------------
  |  Branch (502:13): [True: 236k, False: 43.4k]
  ------------------
  503|   236k|            auto new_tail =
  504|   236k|                node_t::copy_leaf_emplace(tail, ts, std::move(value));
  505|   236k|            return {size + 1, shift, root->inc(), new_tail};
  506|   236k|        } else {
  507|  43.4k|            using std::get;
  508|  43.4k|            auto new_tail = node_t::make_leaf_n(1u, std::move(value));
  509|  43.4k|            auto tail_off = tail_offset();
  510|  43.4k|            IMMER_TRY {
  ------------------
  |  |   49|  43.4k|#define IMMER_TRY try
  ------------------
  511|  43.4k|                auto new_root =
  512|  43.4k|                    push_tail(root, shift, tail_off, tail, size - tail_off);
  513|  43.4k|                tail->inc();
  514|  43.4k|                return {size + 1, get<0>(new_root), get<1>(new_root), new_tail};
  515|  43.4k|            }
  516|  43.4k|            IMMER_CATCH (...) {
  517|      0|                node_t::delete_leaf(new_tail, 1u);
  518|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  519|      0|            }
  520|  43.4k|        }
  521|   279k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2EmjPNS1_4nodeIiSA_Lj3ELj3EEESE_:
  127|  3.05M|        : size{sz}
  128|  3.05M|        , shift{sh}
  129|  3.05M|        , root{r}
  130|  3.05M|        , tail{t}
  131|  3.05M|    {
  132|  3.05M|#if IMMER_THROW_ON_INVALID_STATE
  133|       |        // assert only happens in the Debug build, but when
  134|       |        // IMMER_THROW_ON_INVALID_STATE is activated, we want to just check_tree
  135|       |        // even in Release.
  136|  3.05M|        try {
  137|  3.05M|            check_tree();
  138|  3.05M|        } catch (...) {
  139|       |            // This not fully constructed rrbtree owns the nodes already, have
  140|       |            // to dec them.
  141|  1.56k|            if (r && t)
  ------------------
  |  Branch (141:17): [True: 1.56k, False: 0]
  |  Branch (141:22): [True: 1.56k, False: 0]
  ------------------
  142|  1.56k|                dec();
  143|  1.56k|            throw;
  144|  1.56k|        }
  145|       |#else
  146|       |        assert(check_tree());
  147|       |#endif
  148|  3.05M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9push_tailEPNS1_4nodeIiSA_Lj3ELj3EEEjmSE_j:
  369|  1.12M|    {
  370|  1.12M|        if (auto r = root->relaxed()) {
  ------------------
  |  Branch (370:18): [True: 336k, False: 792k]
  ------------------
  371|   336k|            auto new_root =
  372|   336k|                make_relaxed_pos(root, shift, r)
  373|   336k|                    .visit(push_tail_visitor<node_t>{}, tail, tail_size);
  374|   336k|            if (new_root)
  ------------------
  |  Branch (374:17): [True: 334k, False: 2.36k]
  ------------------
  375|   334k|                return std::make_tuple(shift, new_root);
  376|  2.36k|            else {
  377|  2.36k|                auto new_root = node_t::make_inner_r_n(2);
  378|  2.36k|                IMMER_TRY {
  ------------------
  |  |   49|  2.36k|#define IMMER_TRY try
  ------------------
  379|  2.36k|                    auto new_path        = node_t::make_path(shift, tail);
  380|  2.36k|                    new_root->inner()[0] = root->inc();
  381|  2.36k|                    new_root->inner()[1] = new_path;
  382|  2.36k|                    new_root->relaxed()->d.sizes[0] = size;
  383|  2.36k|                    new_root->relaxed()->d.sizes[1] = size + tail_size;
  384|  2.36k|                    assert(size);
  ------------------
  |  Branch (384:21): [True: 2.36k, False: 0]
  ------------------
  385|  2.36k|                    assert(tail_size);
  ------------------
  |  Branch (385:21): [True: 2.36k, False: 0]
  ------------------
  386|  2.36k|                    new_root->relaxed()->d.count = 2u;
  387|  2.36k|                }
  388|  2.36k|                IMMER_CATCH (...) {
  389|      0|                    node_t::delete_inner_r(new_root, 2);
  390|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  391|      0|                }
  392|  2.36k|                return std::make_tuple(shift + B, new_root);
  393|  2.36k|            }
  394|   792k|        } else if (size == size_t{branches<B>} << shift) {
  ------------------
  |  Branch (394:20): [True: 6.68k, False: 785k]
  ------------------
  395|  6.68k|            auto new_root = node_t::make_inner_n(2);
  396|  6.68k|            IMMER_TRY {
  ------------------
  |  |   49|  6.68k|#define IMMER_TRY try
  ------------------
  397|  6.68k|                auto new_path        = node_t::make_path(shift, tail);
  398|  6.68k|                new_root->inner()[0] = root->inc();
  399|  6.68k|                new_root->inner()[1] = new_path;
  400|  6.68k|            }
  401|  6.68k|            IMMER_CATCH (...) {
  402|      0|                node_t::delete_inner(new_root, 2);
  403|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  404|      0|            }
  405|  6.68k|            return std::make_tuple(shift + B, new_root);
  406|   785k|        } else if (size) {
  ------------------
  |  Branch (406:20): [True: 763k, False: 22.0k]
  ------------------
  407|   763k|            auto new_root = make_regular_sub_pos(root, shift, size)
  408|   763k|                                .visit(push_tail_visitor<node_t>{}, tail);
  409|   763k|            return std::make_tuple(shift, new_root);
  410|   763k|        } else {
  411|  22.0k|            return std::make_tuple(shift, node_t::make_path(shift, tail));
  412|  22.0k|        }
  413|  1.12M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2EOSB_:
  157|  2.72M|        : rrbtree{}
  158|  2.72M|    {
  159|  2.72M|        swap(*this, other);
  160|  2.72M|    }
_ZN5immer6detail4rbts4swapERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEESC_:
  176|  5.16M|    {
  177|  5.16M|        using std::swap;
  178|  5.16M|        swap(x.size, y.size);
  179|  5.16M|        swap(x.shift, y.shift);
  180|  5.16M|        swap(x.root, y.root);
  181|  5.16M|        swap(x.tail, y.tail);
  182|  5.16M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEaSEOSB_:
  170|  2.43M|    {
  171|  2.43M|        swap(*this, other);
  172|  2.43M|        return *this;
  173|  2.43M|    }
flex-vector-st.cpp:_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSG_E_EESB_mOSG_:
  580|   204k|    {
  581|   204k|        auto tail_off = tail_offset();
  582|   204k|        if (idx >= tail_off) {
  ------------------
  |  Branch (582:13): [True: 144k, False: 60.1k]
  ------------------
  583|   144k|            auto tail_size = size - tail_off;
  584|   144k|            auto new_tail =
  585|   144k|                make_leaf_sub_pos(tail, tail_size)
  586|   144k|                    .visit(update_visitor<node_t>{}, idx - tail_off, fn);
  587|   144k|            return {size, shift, root->inc(), new_tail};
  588|   144k|        } else {
  589|  60.1k|            auto new_root = visit_maybe_relaxed_sub(
  590|  60.1k|                root, shift, tail_off, update_visitor<node_t>{}, idx, fn);
  591|  60.1k|            return {size, shift, new_root, tail->inc()};
  592|  60.1k|        }
  593|   204k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4takeEm:
  647|  21.9k|    {
  648|  21.9k|        auto tail_off = tail_offset();
  649|  21.9k|        if (new_size == 0) {
  ------------------
  |  Branch (649:13): [True: 3.84k, False: 18.1k]
  ------------------
  650|  3.84k|            return {};
  651|  18.1k|        } else if (new_size >= size) {
  ------------------
  |  Branch (651:20): [True: 757, False: 17.3k]
  ------------------
  652|    757|            return *this;
  653|  17.3k|        } else if (new_size > tail_off) {
  ------------------
  |  Branch (653:20): [True: 2.17k, False: 15.2k]
  ------------------
  654|  2.17k|            auto new_tail = node_t::copy_leaf(tail, new_size - tail_off);
  655|  2.17k|            return {new_size, shift, root->inc(), new_tail};
  656|  15.2k|        } else {
  657|  15.2k|            using std::get;
  658|  15.2k|            auto l = new_size - 1;
  659|  15.2k|            auto v = slice_right_visitor<node_t>();
  660|  15.2k|            auto r = visit_maybe_relaxed_sub(root, shift, tail_off, v, l);
  661|  15.2k|            auto new_shift = get<0>(r);
  662|  15.2k|            auto new_root  = get<1>(r);
  663|  15.2k|            auto new_tail  = get<3>(r);
  664|  15.2k|            if (new_root) {
  ------------------
  |  Branch (664:17): [True: 11.3k, False: 3.87k]
  ------------------
  665|  11.3k|                IMMER_ASSERT_TAGGED(new_root->compute_shift() == get<0>(r));
  ------------------
  |  |   68|  11.3k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (665:17): [True: 11.3k, False: 0]
  ------------------
  666|  11.3k|                assert(new_root->check(new_shift, new_size - get<2>(r)));
  ------------------
  |  Branch (666:17): [True: 11.3k, False: 0]
  ------------------
  667|  11.3k|                return {new_size, new_shift, new_root, new_tail};
  668|  11.3k|            } else {
  669|  3.87k|                return {new_size, BL, empty_root(), new_tail};
  670|  3.87k|            }
  671|  15.2k|        }
  672|  21.9k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2ERKSB_:
  151|  13.1k|        : rrbtree{other.size, other.shift, other.root, other.tail}
  152|  13.1k|    {
  153|  13.1k|        inc();
  154|  13.1k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE3incEv:
  187|  13.1k|    {
  188|  13.1k|        root->inc();
  189|  13.1k|        tail->inc();
  190|  13.1k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4dropEm:
  711|  29.2k|    {
  712|  29.2k|        if (elems == 0) {
  ------------------
  |  Branch (712:13): [True: 2.09k, False: 27.1k]
  ------------------
  713|  2.09k|            return *this;
  714|  27.1k|        } else if (elems >= size) {
  ------------------
  |  Branch (714:20): [True: 1.24k, False: 25.9k]
  ------------------
  715|  1.24k|            return {};
  716|  25.9k|        } else if (elems == tail_offset()) {
  ------------------
  |  Branch (716:20): [True: 2.12k, False: 23.8k]
  ------------------
  717|  2.12k|            return {size - elems, BL, empty_root(), tail->inc()};
  718|  23.8k|        } else if (elems > tail_offset()) {
  ------------------
  |  Branch (718:20): [True: 2.26k, False: 21.5k]
  ------------------
  719|  2.26k|            auto tail_off = tail_offset();
  720|  2.26k|            auto new_tail =
  721|  2.26k|                node_t::copy_leaf(tail, elems - tail_off, size - tail_off);
  722|  2.26k|            return {size - elems, BL, empty_root(), new_tail};
  723|  21.5k|        } else {
  724|  21.5k|            using std::get;
  725|  21.5k|            auto v = slice_left_visitor<node_t>();
  726|  21.5k|            auto r =
  727|  21.5k|                visit_maybe_relaxed_sub(root, shift, tail_offset(), v, elems);
  728|  21.5k|            auto new_root  = get<1>(r);
  729|  21.5k|            auto new_shift = get<0>(r);
  730|  21.5k|            return {size - elems, new_shift, new_root, tail->inc()};
  731|  21.5k|        }
  732|  29.2k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE8max_sizeEv:
   54|  3.63M|    {
   55|  3.63M|        auto S = sizeof(size_t) * 8;
   56|  3.63M|        return ((size_t{1} << BL) - std::min(size_t{BL}, size_t{2})) *
   57|  3.63M|               ipow((size_t{1} << B) - 2, (S - BL) / B);
   58|  3.63M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6concatERKSB_:
  735|  2.16M|    {
  736|  2.16M|        assert(r.size + size <= max_size());
  ------------------
  |  Branch (736:9): [True: 2.16M, False: 0]
  ------------------
  737|  2.16M|        using std::get;
  738|  2.16M|        if (size == 0)
  ------------------
  |  Branch (738:13): [True: 4.23k, False: 2.15M]
  ------------------
  739|  4.23k|            return r;
  740|  2.15M|        else if (r.size == 0)
  ------------------
  |  Branch (740:18): [True: 3.65k, False: 2.15M]
  ------------------
  741|  3.65k|            return *this;
  742|  2.15M|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (742:18): [True: 1.12M, False: 1.03M]
  ------------------
  743|       |            // just concat the tail, similar to push_back
  744|  1.12M|            auto tail_offst = tail_offset();
  745|  1.12M|            auto tail_size  = size - tail_offst;
  746|  1.12M|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (746:17): [True: 165k, False: 957k]
  ------------------
  747|   165k|                auto new_root =
  748|   165k|                    push_tail(root, shift, tail_offst, tail, tail_size);
  749|   165k|                tail->inc();
  750|   165k|                return {size + r.size,
  751|   165k|                        get<0>(new_root),
  752|   165k|                        get<1>(new_root),
  753|   165k|                        r.tail->inc()};
  754|   957k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (754:24): [True: 38.3k, False: 918k]
  ------------------
  755|  38.3k|                auto new_tail =
  756|  38.3k|                    node_t::copy_leaf(tail, tail_size, r.tail, r.size);
  757|  38.3k|                return {size + r.size, shift, root->inc(), new_tail};
  758|   918k|            } else {
  759|   918k|                auto remaining = branches<BL> - tail_size;
  760|   918k|                auto add_tail =
  761|   918k|                    node_t::copy_leaf(tail, tail_size, r.tail, remaining);
  762|   918k|                IMMER_TRY {
  ------------------
  |  |   49|   918k|#define IMMER_TRY try
  ------------------
  763|   918k|                    auto new_tail =
  764|   918k|                        node_t::copy_leaf(r.tail, remaining, r.size);
  765|   918k|                    IMMER_TRY {
  ------------------
  |  |   49|   918k|#define IMMER_TRY try
  ------------------
  766|   918k|                        auto new_root = push_tail(
  767|   918k|                            root, shift, tail_offst, add_tail, branches<BL>);
  768|   918k|                        return {size + r.size,
  769|   918k|                                get<0>(new_root),
  770|   918k|                                get<1>(new_root),
  771|   918k|                                new_tail};
  772|   918k|                    }
  773|   918k|                    IMMER_CATCH (...) {
  774|      0|                        node_t::delete_leaf(new_tail, r.size - remaining);
  775|      0|                        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  776|      0|                    }
  777|   918k|                }
  778|   918k|                IMMER_CATCH (...) {
  779|      0|                    node_t::delete_leaf(add_tail, branches<BL>);
  780|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  781|      0|                }
  782|   918k|            }
  783|  1.12M|        } else if (tail_offset() == 0) {
  ------------------
  |  Branch (783:20): [True: 5.73k, False: 1.02M]
  ------------------
  784|  5.73k|            auto tail_offst = tail_offset();
  785|  5.73k|            auto tail_size  = size - tail_offst;
  786|  5.73k|            auto concated =
  787|  5.73k|                concat_trees(tail, tail_size, r.root, r.shift, r.tail_offset());
  788|  5.73k|            auto new_shift = concated.shift();
  789|  5.73k|            auto new_root  = concated.node();
  790|  5.73k|            IMMER_ASSERT_TAGGED(new_shift == new_root->compute_shift());
  ------------------
  |  |   68|  5.73k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (790:13): [True: 5.73k, False: 0]
  ------------------
  791|  5.73k|            assert(new_root->check(new_shift, size + r.tail_offset()));
  ------------------
  |  Branch (791:13): [True: 5.73k, False: 0]
  ------------------
  792|  5.73k|            return {size + r.size, new_shift, new_root, r.tail->inc()};
  793|  1.02M|        } else {
  794|  1.02M|            auto tail_offst = tail_offset();
  795|  1.02M|            auto tail_size  = size - tail_offst;
  796|  1.02M|            auto concated   = concat_trees(root,
  797|  1.02M|                                         shift,
  798|  1.02M|                                         tail_offst,
  799|  1.02M|                                         tail,
  800|  1.02M|                                         tail_size,
  801|  1.02M|                                         r.root,
  802|  1.02M|                                         r.shift,
  803|  1.02M|                                         r.tail_offset());
  804|  1.02M|            auto new_shift  = concated.shift();
  805|  1.02M|            auto new_root   = concated.node();
  806|  1.02M|            IMMER_ASSERT_TAGGED(new_shift == new_root->compute_shift());
  ------------------
  |  |   68|  1.02M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (806:13): [True: 1.02M, False: 0]
  ------------------
  807|  1.02M|            assert(new_root->check(new_shift, size + r.tail_offset()));
  ------------------
  |  Branch (807:13): [True: 1.02M, False: 0]
  ------------------
  808|  1.02M|            return {size + r.size, new_shift, new_root, r.tail->inc()};
  809|  1.02M|        }
  810|  2.16M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE13push_back_mutENS9_5applyIS6_E4type4editEi:
  478|  27.0k|    {
  479|  27.0k|        auto ts = tail_size();
  480|  27.0k|        if (ts < branches<BL>) {
  ------------------
  |  Branch (480:13): [True: 20.1k, False: 6.82k]
  ------------------
  481|  20.1k|            ensure_mutable_tail(e, ts);
  482|  20.1k|            new (&tail->leaf()[ts]) T(std::move(value));
  483|  20.1k|        } else {
  484|  6.82k|            using std::get;
  485|  6.82k|            auto new_tail = node_t::make_leaf_e(e, std::move(value));
  486|  6.82k|            auto tail_off = tail_offset();
  487|  6.82k|            IMMER_TRY {
  ------------------
  |  |   49|  6.82k|#define IMMER_TRY try
  ------------------
  488|  6.82k|                push_tail_mut(e, tail_off, tail, ts);
  489|  6.82k|                tail = new_tail;
  490|  6.82k|            }
  491|  6.82k|            IMMER_CATCH (...) {
  492|      0|                node_t::delete_leaf(new_tail, 1u);
  493|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  494|      0|            }
  495|  6.82k|        }
  496|  27.0k|        ++size;
  497|  27.0k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE19ensure_mutable_tailENS9_5applyIS6_E4type4editEj:
  469|   309k|    {
  470|   309k|        if (!tail->can_mutate(e)) {
  ------------------
  |  Branch (470:13): [True: 6.89k, False: 302k]
  ------------------
  471|  6.89k|            auto new_tail = node_t::copy_leaf_e(e, tail, n);
  472|  6.89k|            dec_leaf(tail, n);
  473|  6.89k|            tail = new_tail;
  474|  6.89k|        }
  475|   309k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE13push_tail_mutENS9_5applyIS6_E4type4editEmPNS1_4nodeIiSA_Lj3ELj3EEEj:
  417|   338k|    {
  418|   338k|        if (auto r = root->relaxed()) {
  ------------------
  |  Branch (418:18): [True: 172k, False: 165k]
  ------------------
  419|   172k|            auto new_root =
  420|   172k|                make_relaxed_pos(root, shift, r)
  421|   172k|                    .visit(push_tail_mut_visitor<node_t>{}, e, tail, tail_size);
  422|   172k|            if (new_root) {
  ------------------
  |  Branch (422:17): [True: 171k, False: 1.41k]
  ------------------
  423|   171k|                root = new_root;
  424|   171k|            } else {
  425|  1.41k|                auto new_root = node_t::make_inner_r_e(e);
  426|  1.41k|                IMMER_TRY {
  ------------------
  |  |   49|  1.41k|#define IMMER_TRY try
  ------------------
  427|  1.41k|                    auto new_path        = node_t::make_path_e(e, shift, tail);
  428|  1.41k|                    new_root->inner()[0] = root;
  429|  1.41k|                    new_root->inner()[1] = new_path;
  430|  1.41k|                    new_root->relaxed()->d.sizes[0] = tail_off;
  431|  1.41k|                    new_root->relaxed()->d.sizes[1] = tail_off + tail_size;
  432|  1.41k|                    assert(tail_off);
  ------------------
  |  Branch (432:21): [True: 1.41k, False: 0]
  ------------------
  433|  1.41k|                    assert(tail_size);
  ------------------
  |  Branch (433:21): [True: 1.41k, False: 0]
  ------------------
  434|  1.41k|                    new_root->relaxed()->d.count = 2u;
  435|  1.41k|                    root                         = new_root;
  436|  1.41k|                    shift += B;
  437|  1.41k|                }
  438|  1.41k|                IMMER_CATCH (...) {
  439|      0|                    node_t::delete_inner_r_e(new_root);
  440|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  441|      0|                }
  442|  1.41k|            }
  443|   172k|        } else if (tail_off == size_t{branches<B>} << shift) {
  ------------------
  |  Branch (443:20): [True: 1.74k, False: 163k]
  ------------------
  444|  1.74k|            auto new_root = node_t::make_inner_e(e);
  445|  1.74k|            IMMER_TRY {
  ------------------
  |  |   49|  1.74k|#define IMMER_TRY try
  ------------------
  446|  1.74k|                auto new_path        = node_t::make_path_e(e, shift, tail);
  447|  1.74k|                new_root->inner()[0] = root;
  448|  1.74k|                new_root->inner()[1] = new_path;
  449|  1.74k|                root                 = new_root;
  450|  1.74k|                shift += B;
  451|  1.74k|            }
  452|  1.74k|            IMMER_CATCH (...) {
  453|      0|                node_t::delete_inner_e(new_root);
  454|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  455|      0|            }
  456|   163k|        } else if (tail_off) {
  ------------------
  |  Branch (456:20): [True: 162k, False: 1.80k]
  ------------------
  457|   162k|            auto new_root =
  458|   162k|                make_regular_sub_pos(root, shift, tail_off)
  459|   162k|                    .visit(push_tail_mut_visitor<node_t>{}, e, tail);
  460|   162k|            root = new_root;
  461|   162k|        } else {
  462|  1.80k|            auto new_root = node_t::make_path_e(e, shift, tail);
  463|  1.80k|            dec_empty_regular(root);
  464|  1.80k|            root = new_root;
  465|  1.80k|        }
  466|   338k|    }
flex-vector-st.cpp:_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10update_mutIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSG_E0_EEvNS9_5applyIS6_E4type4editEmOSG_:
  573|  16.4k|    {
  574|  16.4k|        auto& elem = get_mut(e, idx);
  575|  16.4k|        elem       = std::forward<FnT>(fn)(std::move(elem));
  576|  16.4k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE7get_mutENS9_5applyIS6_E4type4editEm:
  539|  16.4k|    {
  540|  16.4k|        auto tail_off = tail_offset();
  541|  16.4k|        if (idx >= tail_off) {
  ------------------
  |  Branch (541:13): [True: 751, False: 15.6k]
  ------------------
  542|    751|            ensure_mutable_tail(e, size - tail_off);
  543|    751|            return tail->leaf()[(idx - tail_off) & mask<BL>];
  544|  15.6k|        } else {
  545|  15.6k|            return visit_maybe_relaxed_sub(root,
  546|  15.6k|                                           shift,
  547|  15.6k|                                           tail_off,
  548|  15.6k|                                           get_mut_visitor<node_t>{},
  549|  15.6k|                                           idx,
  550|  15.6k|                                           e,
  551|  15.6k|                                           &root);
  552|  15.6k|        }
  553|  16.4k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE8take_mutENS9_5applyIS6_E4type4editEm:
  606|  33.8k|    {
  607|  33.8k|        auto tail_off = tail_offset();
  608|  33.8k|        if (new_size == 0) {
  ------------------
  |  Branch (608:13): [True: 933, False: 32.9k]
  ------------------
  609|    933|            *this = {};
  610|  32.9k|        } else if (new_size >= size) {
  ------------------
  |  Branch (610:20): [True: 753, False: 32.1k]
  ------------------
  611|    753|            return;
  612|  32.1k|        } else if (new_size > tail_off) {
  ------------------
  |  Branch (612:20): [True: 664, False: 31.5k]
  ------------------
  613|    664|            auto ts    = size - tail_off;
  614|    664|            auto newts = new_size - tail_off;
  615|    664|            if (tail->can_mutate(e)) {
  ------------------
  |  Branch (615:17): [True: 349, False: 315]
  ------------------
  616|    349|                detail::destroy_n(tail->leaf() + newts, ts - newts);
  617|    349|            } else {
  618|    315|                auto new_tail = node_t::copy_leaf_e(e, tail, newts);
  619|    315|                dec_leaf(tail, ts);
  620|    315|                tail = new_tail;
  621|    315|            }
  622|    664|            size = new_size;
  623|    664|            return;
  624|  31.5k|        } else {
  625|  31.5k|            using std::get;
  626|  31.5k|            auto l = new_size - 1;
  627|  31.5k|            auto v = slice_right_mut_visitor<node_t>();
  628|  31.5k|            auto r = visit_maybe_relaxed_sub(root, shift, tail_off, v, l, e);
  629|  31.5k|            auto new_shift = get<0>(r);
  630|  31.5k|            auto new_root  = get<1>(r);
  631|  31.5k|            auto new_tail  = get<3>(r);
  632|  31.5k|            if (new_root) {
  ------------------
  |  Branch (632:17): [True: 25.4k, False: 6.09k]
  ------------------
  633|  25.4k|                root  = new_root;
  634|  25.4k|                shift = new_shift;
  635|  25.4k|            } else {
  636|  6.09k|                root  = empty_root();
  637|  6.09k|                shift = BL;
  638|  6.09k|            }
  639|  31.5k|            dec_leaf(tail, size - tail_off);
  640|  31.5k|            size = new_size;
  641|  31.5k|            tail = new_tail;
  642|  31.5k|            return;
  643|  31.5k|        }
  644|  33.8k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE8drop_mutENS9_5applyIS6_E4type4editEm:
  675|  75.4k|    {
  676|  75.4k|        using std::get;
  677|  75.4k|        auto tail_off = tail_offset();
  678|  75.4k|        if (elems == 0) {
  ------------------
  |  Branch (678:13): [True: 4.63k, False: 70.7k]
  ------------------
  679|  4.63k|            return;
  680|  70.7k|        } else if (elems >= size) {
  ------------------
  |  Branch (680:20): [True: 227, False: 70.5k]
  ------------------
  681|    227|            *this = {};
  682|  70.5k|        } else if (elems == tail_off) {
  ------------------
  |  Branch (682:20): [True: 210, False: 70.3k]
  ------------------
  683|    210|            dec_inner(root, shift, tail_off);
  684|    210|            shift = BL;
  685|    210|            root  = empty_root();
  686|    210|            size -= elems;
  687|    210|            return;
  688|  70.3k|        } else if (elems > tail_off) {
  ------------------
  |  Branch (688:20): [True: 998, False: 69.3k]
  ------------------
  689|    998|            auto v = slice_left_mut_visitor<node_t>();
  690|    998|            tail   = get<1>(make_leaf_sub_pos(tail, size - tail_off)
  691|    998|                              .visit(v, elems - tail_off, e));
  692|    998|            if (tail_off) {
  ------------------
  |  Branch (692:17): [True: 349, False: 649]
  ------------------
  693|    349|                dec_inner(root, shift, tail_off);
  694|    349|                shift = BL;
  695|    349|                root  = empty_root();
  696|    349|            }
  697|    998|            size -= elems;
  698|    998|            return;
  699|  69.3k|        } else {
  700|  69.3k|            auto v = slice_left_mut_visitor<node_t>();
  701|  69.3k|            auto r =
  702|  69.3k|                visit_maybe_relaxed_sub(root, shift, tail_off, v, elems, e);
  703|  69.3k|            shift = get<0>(r);
  704|  69.3k|            root  = get<1>(r);
  705|  69.3k|            size -= elems;
  706|  69.3k|            return;
  707|  69.3k|        }
  708|  75.4k|    }
_ZN5immer6detail4rbts12concat_mut_lERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS9_5applyIS6_E4type4editERKSB_:
  816|   327k|    {
  817|   327k|        assert(&l != &r);
  ------------------
  |  Branch (817:9): [True: 327k, False: 0]
  ------------------
  818|   327k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (818:9): [True: 327k, False: 0]
  ------------------
  819|   327k|        using std::get;
  820|   327k|        if (l.size == 0)
  ------------------
  |  Branch (820:13): [True: 487, False: 327k]
  ------------------
  821|    487|            l = r;
  822|   327k|        else if (r.size == 0)
  ------------------
  |  Branch (822:18): [True: 846, False: 326k]
  ------------------
  823|    846|            return;
  824|   326k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (824:18): [True: 272k, False: 54.2k]
  ------------------
  825|       |            // just concat the tail, similar to push_back
  826|   272k|            auto tail_offst = l.tail_offset();
  827|   272k|            auto tail_size  = l.size - tail_offst;
  828|   272k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (828:17): [True: 27.9k, False: 244k]
  ------------------
  829|  27.9k|                l.push_tail_mut(el, tail_offst, l.tail, tail_size);
  830|  27.9k|                l.tail = r.tail->inc();
  831|  27.9k|                l.size += r.size;
  832|  27.9k|                return;
  833|   244k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (833:24): [True: 1.97k, False: 242k]
  ------------------
  834|  1.97k|                l.ensure_mutable_tail(el, tail_size);
  835|  1.97k|                detail::uninitialized_copy(r.tail->leaf(),
  836|  1.97k|                                           r.tail->leaf() + r.size,
  837|  1.97k|                                           l.tail->leaf() + tail_size);
  838|  1.97k|                l.size += r.size;
  839|  1.97k|                return;
  840|   242k|            } else {
  841|   242k|                auto remaining = branches<BL> - tail_size;
  842|   242k|                l.ensure_mutable_tail(el, tail_size);
  843|   242k|                detail::uninitialized_copy(r.tail->leaf(),
  844|   242k|                                           r.tail->leaf() + remaining,
  845|   242k|                                           l.tail->leaf() + tail_size);
  846|   242k|                IMMER_TRY {
  ------------------
  |  |   49|   242k|#define IMMER_TRY try
  ------------------
  847|   242k|                    auto new_tail =
  848|   242k|                        node_t::copy_leaf_e(el, r.tail, remaining, r.size);
  849|   242k|                    IMMER_TRY {
  ------------------
  |  |   49|   242k|#define IMMER_TRY try
  ------------------
  850|   242k|                        l.push_tail_mut(el, tail_offst, l.tail, branches<BL>);
  851|   242k|                        l.tail = new_tail;
  852|   242k|                        l.size += r.size;
  853|   242k|                        return;
  854|   242k|                    }
  855|   242k|                    IMMER_CATCH (...) {
  856|      0|                        node_t::delete_leaf(new_tail, r.size - remaining);
  857|      0|                        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  858|      0|                    }
  859|   242k|                }
  860|   242k|                IMMER_CATCH (...) {
  861|      0|                    detail::destroy_n(r.tail->leaf() + tail_size, remaining);
  862|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  863|      0|                }
  864|   242k|            }
  865|   272k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (865:20): [True: 621, False: 53.6k]
  ------------------
  866|    621|            if (supports_transient_concat) {
  ------------------
  |  Branch (866:17): [Folded, False: 621]
  ------------------
  867|      0|                auto tail_offst = l.tail_offset();
  868|      0|                auto tail_size  = l.size - tail_offst;
  869|      0|                auto concated =
  870|      0|                    concat_trees_mut(el,
  871|      0|                                     el,
  872|      0|                                     l.tail,
  873|      0|                                     tail_size,
  874|      0|                                     MemoryPolicy::transience_t::noone,
  875|      0|                                     r.root,
  876|      0|                                     r.shift,
  877|      0|                                     r.tail_offset());
  878|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (878:17): [True: 0, False: 0]
  ------------------
  879|      0|                                    concated.node()->compute_shift());
  880|      0|                l.size += r.size;
  881|      0|                l.shift = concated.shift();
  882|      0|                l.root  = concated.node();
  883|      0|                l.tail  = r.tail;
  884|      0|                assert(l.check_tree());
  ------------------
  |  Branch (884:17): [True: 0, False: 0]
  ------------------
  885|    621|            } else {
  886|    621|                auto tail_offst = l.tail_offset();
  887|    621|                auto tail_size  = l.size - tail_offst;
  888|    621|                auto concated   = concat_trees(
  889|    621|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
  890|    621|                l = {l.size + r.size,
  891|    621|                     concated.shift(),
  892|    621|                     concated.node(),
  893|    621|                     r.tail->inc()};
  894|    621|                assert(l.check_tree());
  ------------------
  |  Branch (894:17): [True: 621, False: 0]
  ------------------
  895|    621|                return;
  896|    621|            }
  897|  53.6k|        } else {
  898|  53.6k|            if (supports_transient_concat) {
  ------------------
  |  Branch (898:17): [Folded, False: 53.6k]
  ------------------
  899|      0|                auto tail_offst = l.tail_offset();
  900|      0|                auto tail_size  = l.size - tail_offst;
  901|      0|                assert(l.check_tree());
  ------------------
  |  Branch (901:17): [True: 0, False: 0]
  ------------------
  902|      0|                assert(r.check_tree());
  ------------------
  |  Branch (902:17): [True: 0, False: 0]
  ------------------
  903|      0|                auto concated =
  904|      0|                    concat_trees_mut(el,
  905|      0|                                     el,
  906|      0|                                     l.root,
  907|      0|                                     l.shift,
  908|      0|                                     tail_offst,
  909|      0|                                     l.tail,
  910|      0|                                     tail_size,
  911|      0|                                     MemoryPolicy::transience_t::noone,
  912|      0|                                     r.root,
  913|      0|                                     r.shift,
  914|      0|                                     r.tail_offset());
  915|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (915:17): [True: 0, False: 0]
  ------------------
  916|      0|                                    concated.node()->compute_shift());
  917|      0|                l.size += r.size;
  918|      0|                l.shift = concated.shift();
  919|      0|                l.root  = concated.node();
  920|      0|                l.tail  = r.tail;
  921|      0|                assert(l.check_tree());
  ------------------
  |  Branch (921:17): [True: 0, False: 0]
  ------------------
  922|  53.6k|            } else {
  923|  53.6k|                auto tail_offst = l.tail_offset();
  924|  53.6k|                auto tail_size  = l.size - tail_offst;
  925|  53.6k|                auto concated   = concat_trees(l.root,
  926|  53.6k|                                             l.shift,
  927|  53.6k|                                             tail_offst,
  928|  53.6k|                                             l.tail,
  929|  53.6k|                                             tail_size,
  930|  53.6k|                                             r.root,
  931|  53.6k|                                             r.shift,
  932|  53.6k|                                             r.tail_offset());
  933|  53.6k|                l               = {l.size + r.size,
  934|  53.6k|                                   concated.shift(),
  935|  53.6k|                                   concated.node(),
  936|  53.6k|                                   r.tail->inc()};
  937|  53.6k|            }
  938|  53.6k|        }
  939|   327k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEaSERKSB_:
  163|  2.39k|    {
  164|  2.39k|        auto next{other};
  165|  2.39k|        swap(*this, next);
  166|  2.39k|        return *this;
  167|  2.39k|    }
_ZN5immer6detail4rbts12concat_mut_rERKNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERSB_NS9_5applyIS6_E4type4editE:
  942|  3.28k|    {
  943|  3.28k|        assert(&l != &r);
  ------------------
  |  Branch (943:9): [True: 3.28k, False: 0]
  ------------------
  944|  3.28k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (944:9): [True: 3.28k, False: 0]
  ------------------
  945|  3.28k|        using std::get;
  946|  3.28k|        if (r.size == 0)
  ------------------
  |  Branch (946:13): [True: 345, False: 2.93k]
  ------------------
  947|    345|            r = std::move(l);
  948|  2.93k|        else if (l.size == 0)
  ------------------
  |  Branch (948:18): [True: 218, False: 2.71k]
  ------------------
  949|    218|            return;
  950|  2.71k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (950:18): [True: 968, False: 1.75k]
  ------------------
  951|       |            // just concat the tail, similar to push_back
  952|    968|            auto tail_offst = l.tail_offset();
  953|    968|            auto tail_size  = l.size - tail_offst;
  954|    968|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (954:17): [True: 405, False: 563]
  ------------------
  955|       |                // this could be improved by making sure that the
  956|       |                // newly created nodes as part of the `push_tail()`
  957|       |                // are tagged with `er`
  958|    405|                auto res =
  959|    405|                    l.push_tail(l.root, l.shift, tail_offst, l.tail, tail_size);
  960|    405|                l.tail->inc(); // note: leak if mutably concatenated
  961|       |                               // with itself, but this is forbidden
  962|       |                               // by the interface
  963|    405|                r = {l.size + r.size, get<0>(res), get<1>(res), r.tail->inc()};
  964|    405|                return;
  965|    563|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (965:24): [True: 328, False: 235]
  ------------------
  966|       |                // doing this in a exception way mutating way is very
  967|       |                // tricky while potential performance gains are
  968|       |                // minimal (we need to move every element of the right
  969|       |                // tail anyways to make space for the left tail)
  970|       |                //
  971|       |                // we could however improve this by at least moving the
  972|       |                // elements of the right tail...
  973|    328|                auto new_tail =
  974|    328|                    node_t::copy_leaf(l.tail, tail_size, r.tail, r.size);
  975|    328|                r = {l.size + r.size, l.shift, l.root->inc(), new_tail};
  976|    328|                return;
  977|    328|            } else {
  978|       |                // like the immutable version
  979|    235|                auto remaining = branches<BL> - tail_size;
  980|    235|                auto add_tail  = node_t::copy_leaf_e(
  981|    235|                    er, l.tail, tail_size, r.tail, remaining);
  982|    235|                IMMER_TRY {
  ------------------
  |  |   49|    235|#define IMMER_TRY try
  ------------------
  983|    235|                    auto new_tail =
  984|    235|                        node_t::copy_leaf_e(er, r.tail, remaining, r.size);
  985|    235|                    IMMER_TRY {
  ------------------
  |  |   49|    235|#define IMMER_TRY try
  ------------------
  986|       |                        // this could be improved by making sure that the
  987|       |                        // newly created nodes as part of the `push_tail()`
  988|       |                        // are tagged with `er`
  989|    235|                        auto new_root = l.push_tail(l.root,
  990|    235|                                                    l.shift,
  991|    235|                                                    tail_offst,
  992|    235|                                                    add_tail,
  993|    235|                                                    branches<BL>);
  994|    235|                        r             = {l.size + r.size,
  995|    235|                                         get<0>(new_root),
  996|    235|                                         get<1>(new_root),
  997|    235|                                         new_tail};
  998|    235|                        return;
  999|    235|                    }
 1000|    235|                    IMMER_CATCH (...) {
 1001|      0|                        node_t::delete_leaf(new_tail, r.size - remaining);
 1002|      0|                        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1003|      0|                    }
 1004|    235|                }
 1005|    235|                IMMER_CATCH (...) {
 1006|      0|                    node_t::delete_leaf(add_tail, branches<BL>);
 1007|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1008|      0|                }
 1009|    235|            }
 1010|  1.75k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (1010:20): [True: 461, False: 1.29k]
  ------------------
 1011|    461|            if (supports_transient_concat) {
  ------------------
  |  Branch (1011:17): [Folded, False: 461]
  ------------------
 1012|      0|                auto tail_offst = l.tail_offset();
 1013|      0|                auto tail_size  = l.size - tail_offst;
 1014|      0|                auto concated =
 1015|      0|                    concat_trees_mut(er,
 1016|      0|                                     MemoryPolicy::transience_t::noone,
 1017|      0|                                     l.tail,
 1018|      0|                                     tail_size,
 1019|      0|                                     er,
 1020|      0|                                     r.root,
 1021|      0|                                     r.shift,
 1022|      0|                                     r.tail_offset());
 1023|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (1023:17): [True: 0, False: 0]
  ------------------
 1024|      0|                                    concated.node()->compute_shift());
 1025|      0|                r.size += l.size;
 1026|      0|                r.shift = concated.shift();
 1027|      0|                r.root  = concated.node();
 1028|      0|                assert(r.check_tree());
  ------------------
  |  Branch (1028:17): [True: 0, False: 0]
  ------------------
 1029|    461|            } else {
 1030|    461|                auto tail_offst = l.tail_offset();
 1031|    461|                auto tail_size  = l.size - tail_offst;
 1032|    461|                auto concated   = concat_trees(
 1033|    461|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
 1034|    461|                r = {l.size + r.size,
 1035|    461|                     concated.shift(),
 1036|    461|                     concated.node(),
 1037|    461|                     r.tail->inc()};
 1038|    461|                return;
 1039|    461|            }
 1040|  1.29k|        } else {
 1041|  1.29k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1041:17): [Folded, False: 1.29k]
  ------------------
 1042|      0|                auto tail_offst = l.tail_offset();
 1043|      0|                auto tail_size  = l.size - tail_offst;
 1044|      0|                auto concated =
 1045|      0|                    concat_trees_mut(er,
 1046|      0|                                     MemoryPolicy::transience_t::noone,
 1047|      0|                                     l.root,
 1048|      0|                                     l.shift,
 1049|      0|                                     tail_offst,
 1050|      0|                                     l.tail,
 1051|      0|                                     tail_size,
 1052|      0|                                     er,
 1053|      0|                                     r.root,
 1054|      0|                                     r.shift,
 1055|      0|                                     r.tail_offset());
 1056|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (1056:17): [True: 0, False: 0]
  ------------------
 1057|      0|                                    concated.node()->compute_shift());
 1058|      0|                r.size += l.size;
 1059|      0|                r.shift = concated.shift();
 1060|      0|                r.root  = concated.node();
 1061|      0|                assert(r.check_tree());
  ------------------
  |  Branch (1061:17): [True: 0, False: 0]
  ------------------
 1062|      0|                return;
 1063|  1.29k|            } else {
 1064|  1.29k|                auto tail_offst = l.tail_offset();
 1065|  1.29k|                auto tail_size  = l.size - tail_offst;
 1066|  1.29k|                auto concated   = concat_trees(l.root,
 1067|  1.29k|                                             l.shift,
 1068|  1.29k|                                             tail_offst,
 1069|  1.29k|                                             l.tail,
 1070|  1.29k|                                             tail_size,
 1071|  1.29k|                                             r.root,
 1072|  1.29k|                                             r.shift,
 1073|  1.29k|                                             r.tail_offset());
 1074|  1.29k|                r               = {l.size + r.size,
 1075|  1.29k|                                   concated.shift(),
 1076|  1.29k|                                   concated.node(),
 1077|  1.29k|                                   r.tail->inc()};
 1078|  1.29k|                return;
 1079|  1.29k|            }
 1080|  1.29k|        }
 1081|  3.28k|    }
_ZN5immer6detail4rbts15concat_mut_lr_lERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEENS9_5applyIS6_E4type4editESC_SG_:
 1084|   365k|    {
 1085|   365k|        assert(&l != &r);
  ------------------
  |  Branch (1085:9): [True: 365k, False: 0]
  ------------------
 1086|   365k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (1086:9): [True: 365k, False: 0]
  ------------------
 1087|   365k|        using std::get;
 1088|   365k|        if (l.size == 0)
  ------------------
  |  Branch (1088:13): [True: 1.56k, False: 363k]
  ------------------
 1089|  1.56k|            l = r;
 1090|   363k|        else if (r.size == 0)
  ------------------
  |  Branch (1090:18): [True: 873, False: 363k]
  ------------------
 1091|    873|            return;
 1092|   363k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (1092:18): [True: 64.1k, False: 298k]
  ------------------
 1093|       |            // just concat the tail, similar to push_back
 1094|  64.1k|            auto tail_offst = l.tail_offset();
 1095|  64.1k|            auto tail_size  = l.size - tail_offst;
 1096|  64.1k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (1096:17): [True: 19.7k, False: 44.4k]
  ------------------
 1097|  19.7k|                l.push_tail_mut(el, tail_offst, l.tail, tail_size);
 1098|  19.7k|                l.tail = r.tail->inc();
 1099|  19.7k|                l.size += r.size;
 1100|  19.7k|                return;
 1101|  44.4k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (1101:24): [True: 2.77k, False: 41.6k]
  ------------------
 1102|  2.77k|                l.ensure_mutable_tail(el, tail_size);
 1103|  2.77k|                if (r.tail->can_mutate(er))
  ------------------
  |  Branch (1103:21): [True: 1.07k, False: 1.70k]
  ------------------
 1104|  1.07k|                    detail::uninitialized_move(r.tail->leaf(),
 1105|  1.07k|                                               r.tail->leaf() + r.size,
 1106|  1.07k|                                               l.tail->leaf() + tail_size);
 1107|  1.70k|                else
 1108|  1.70k|                    detail::uninitialized_copy(r.tail->leaf(),
 1109|  1.70k|                                               r.tail->leaf() + r.size,
 1110|  1.70k|                                               l.tail->leaf() + tail_size);
 1111|  2.77k|                l.size += r.size;
 1112|  2.77k|                return;
 1113|  41.6k|            } else {
 1114|  41.6k|                auto remaining = branches<BL> - tail_size;
 1115|  41.6k|                l.ensure_mutable_tail(el, tail_size);
 1116|  41.6k|                if (r.tail->can_mutate(er))
  ------------------
  |  Branch (1116:21): [True: 14.1k, False: 27.5k]
  ------------------
 1117|  14.1k|                    detail::uninitialized_move(r.tail->leaf(),
 1118|  14.1k|                                               r.tail->leaf() + remaining,
 1119|  14.1k|                                               l.tail->leaf() + tail_size);
 1120|  27.5k|                else
 1121|  27.5k|                    detail::uninitialized_copy(r.tail->leaf(),
 1122|  27.5k|                                               r.tail->leaf() + remaining,
 1123|  27.5k|                                               l.tail->leaf() + tail_size);
 1124|  41.6k|                IMMER_TRY {
  ------------------
  |  |   49|  41.6k|#define IMMER_TRY try
  ------------------
 1125|  41.6k|                    auto new_tail =
 1126|  41.6k|                        node_t::copy_leaf_e(el, r.tail, remaining, r.size);
 1127|  41.6k|                    IMMER_TRY {
  ------------------
  |  |   49|  41.6k|#define IMMER_TRY try
  ------------------
 1128|  41.6k|                        l.push_tail_mut(el, tail_offst, l.tail, branches<BL>);
 1129|  41.6k|                        l.tail = new_tail;
 1130|  41.6k|                        l.size += r.size;
 1131|  41.6k|                        return;
 1132|  41.6k|                    }
 1133|  41.6k|                    IMMER_CATCH (...) {
 1134|      0|                        node_t::delete_leaf(new_tail, r.size - remaining);
 1135|      0|                        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1136|      0|                    }
 1137|  41.6k|                }
 1138|  41.6k|                IMMER_CATCH (...) {
 1139|      0|                    detail::destroy_n(r.tail->leaf() + tail_size, remaining);
 1140|      0|                    IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1141|      0|                }
 1142|  41.6k|            }
 1143|   298k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (1143:20): [True: 3.22k, False: 295k]
  ------------------
 1144|  3.22k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1144:17): [Folded, False: 3.22k]
  ------------------
 1145|      0|                auto tail_offst = l.tail_offset();
 1146|      0|                auto tail_size  = l.size - tail_offst;
 1147|      0|                auto concated   = concat_trees_mut(el,
 1148|      0|                                                 el,
 1149|      0|                                                 l.tail,
 1150|      0|                                                 tail_size,
 1151|      0|                                                 er,
 1152|      0|                                                 r.root,
 1153|      0|                                                 r.shift,
 1154|      0|                                                 r.tail_offset());
 1155|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (1155:17): [True: 0, False: 0]
  ------------------
 1156|      0|                                    concated.node()->compute_shift());
 1157|      0|                l.size += r.size;
 1158|      0|                l.shift = concated.shift();
 1159|      0|                l.root  = concated.node();
 1160|      0|                l.tail  = r.tail;
 1161|      0|                assert(l.check_tree());
  ------------------
  |  Branch (1161:17): [True: 0, False: 0]
  ------------------
 1162|      0|                r.hard_reset();
 1163|      0|                return;
 1164|  3.22k|            } else {
 1165|  3.22k|                auto tail_offst = l.tail_offset();
 1166|  3.22k|                auto tail_size  = l.size - tail_offst;
 1167|  3.22k|                auto concated   = concat_trees(
 1168|  3.22k|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
 1169|  3.22k|                l = {l.size + r.size,
 1170|  3.22k|                     concated.shift(),
 1171|  3.22k|                     concated.node(),
 1172|  3.22k|                     r.tail->inc()};
 1173|  3.22k|                return;
 1174|  3.22k|            }
 1175|   295k|        } else {
 1176|   295k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1176:17): [Folded, False: 295k]
  ------------------
 1177|      0|                auto tail_offst = l.tail_offset();
 1178|      0|                auto tail_size  = l.size - tail_offst;
 1179|      0|                auto concated   = concat_trees_mut(el,
 1180|      0|                                                 el,
 1181|      0|                                                 l.root,
 1182|      0|                                                 l.shift,
 1183|      0|                                                 tail_offst,
 1184|      0|                                                 l.tail,
 1185|      0|                                                 tail_size,
 1186|      0|                                                 er,
 1187|      0|                                                 r.root,
 1188|      0|                                                 r.shift,
 1189|      0|                                                 r.tail_offset());
 1190|      0|                IMMER_ASSERT_TAGGED(concated.shift() ==
  ------------------
  |  |   68|      0|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (1190:17): [True: 0, False: 0]
  ------------------
 1191|      0|                                    concated.node()->compute_shift());
 1192|      0|                l.size += r.size;
 1193|      0|                l.shift = concated.shift();
 1194|      0|                l.root  = concated.node();
 1195|      0|                l.tail  = r.tail;
 1196|      0|                assert(l.check_tree());
  ------------------
  |  Branch (1196:17): [True: 0, False: 0]
  ------------------
 1197|      0|                r.hard_reset();
 1198|      0|                return;
 1199|   295k|            } else {
 1200|   295k|                auto tail_offst = l.tail_offset();
 1201|   295k|                auto tail_size  = l.size - tail_offst;
 1202|   295k|                auto concated   = concat_trees(l.root,
 1203|   295k|                                             l.shift,
 1204|   295k|                                             tail_offst,
 1205|   295k|                                             l.tail,
 1206|   295k|                                             tail_size,
 1207|   295k|                                             r.root,
 1208|   295k|                                             r.shift,
 1209|   295k|                                             r.tail_offset());
 1210|   295k|                l               = {l.size + r.size,
 1211|   295k|                                   concated.shift(),
 1212|   295k|                                   concated.node(),
 1213|   295k|                                   r.tail->inc()};
 1214|   295k|                return;
 1215|   295k|            }
 1216|   295k|        }
 1217|   365k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6equalsERKSB_:
  315|  28.7k|    {
  316|  28.7k|        using iter_t = rrbtree_iterator<T, MemoryPolicy, B, BL>;
  317|  28.7k|        if (size != other.size)
  ------------------
  |  Branch (317:13): [True: 7.90k, False: 20.8k]
  ------------------
  318|  7.90k|            return false;
  319|  20.8k|        if (size == 0)
  ------------------
  |  Branch (319:13): [True: 203, False: 20.6k]
  ------------------
  320|    203|            return true;
  321|  20.6k|        auto tail_off       = tail_offset();
  322|  20.6k|        auto tail_off_other = other.tail_offset();
  323|       |        // compare trees
  324|  20.6k|        if (tail_off > 0 && tail_off_other > 0) {
  ------------------
  |  Branch (324:13): [True: 20.0k, False: 665]
  |  Branch (324:29): [True: 19.8k, False: 199]
  ------------------
  325|       |            // other.shift != shift is a theoretical possibility for
  326|       |            // relaxed trees that sadly we haven't managed to exercise
  327|       |            // in tests yet...
  328|  19.8k|            if (other.shift >= shift) {
  ------------------
  |  Branch (328:17): [True: 19.3k, False: 437]
  ------------------
  329|  19.3k|                if (!visit_maybe_relaxed_sub(other.root,
  ------------------
  |  Branch (329:21): [True: 9.12k, False: 10.2k]
  ------------------
  330|  19.3k|                                             other.shift,
  331|  19.3k|                                             tail_off_other,
  332|  19.3k|                                             equals_visitor::rrb{},
  333|  19.3k|                                             iter_t{other},
  334|  19.3k|                                             root,
  335|  19.3k|                                             shift,
  336|  19.3k|                                             tail_off))
  337|  9.12k|                    return false;
  338|  19.3k|            } else {
  339|    437|                if (!visit_maybe_relaxed_sub(root,
  ------------------
  |  Branch (339:21): [True: 207, False: 230]
  ------------------
  340|    437|                                             shift,
  341|    437|                                             tail_off,
  342|    437|                                             equals_visitor::rrb{},
  343|    437|                                             iter_t{*this},
  344|    437|                                             other.root,
  345|    437|                                             other.shift,
  346|    437|                                             tail_off_other))
  347|    207|                    return false;
  348|    437|            }
  349|  19.8k|        }
  350|  11.3k|        return tail_off == tail_off_other
  ------------------
  |  Branch (350:16): [True: 6.51k, False: 4.85k]
  ------------------
  351|  11.3k|                   ? make_leaf_sub_pos(tail, tail_size())
  352|  6.51k|                         .visit(equals_visitor{}, other.tail)
  353|  11.3k|               : tail_off > tail_off_other
  ------------------
  |  Branch (353:18): [True: 1.83k, False: 3.01k]
  ------------------
  354|  4.85k|                   ? std::equal(tail->leaf(),
  355|  1.83k|                                tail->leaf() + (size - tail_off),
  356|  1.83k|                                other.tail->leaf() +
  357|  1.83k|                                    (tail_off - tail_off_other))
  358|       |                   /* otherwise */
  359|  4.85k|                   : std::equal(tail->leaf(),
  360|  3.01k|                                tail->leaf() + (size - tail_off),
  361|  3.01k|                                iter_t{other} + tail_off);
  362|  20.6k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE10region_forEm:
  524|  1.07M|    {
  525|  1.07M|        using std::get;
  526|  1.07M|        auto tail_off = tail_offset();
  527|  1.07M|        if (idx >= tail_off) {
  ------------------
  |  Branch (527:13): [True: 4.90k, False: 1.06M]
  ------------------
  528|  4.90k|            return std::make_tuple(tail->leaf(), tail_off, size);
  529|  1.06M|        } else {
  530|  1.06M|            auto subs = visit_maybe_relaxed_sub(
  531|  1.06M|                root, shift, tail_off, region_for_visitor<T>(), idx);
  532|  1.06M|            auto first = idx - get<1>(subs);
  533|  1.06M|            auto end   = first + get<2>(subs);
  534|  1.06M|            return std::make_tuple(get<0>(subs), first, end);
  535|  1.06M|        }
  536|  1.07M|    }

_ZNK5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11dereferenceEv:
   90|  8.15M|    {
   91|  8.15M|        using std::get;
   92|  8.15M|        if (i_ < get<1>(curr_) || i_ >= get<2>(curr_))
  ------------------
  |  Branch (92:13): [True: 59.1k, False: 8.09M]
  |  Branch (92:35): [True: 1.01M, False: 7.08M]
  ------------------
   93|  1.07M|            curr_ = v_->region_for(i_);
   94|  8.15M|        return get<0>(curr_)[i_ - get<1>(curr_)];
   95|  8.15M|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE7advanceEl:
   74|   137k|    {
   75|   137k|        using std::get;
   76|   137k|        assert(n <= 0 || i_ + static_cast<size_t>(n) <= v_->size);
  ------------------
  |  Branch (76:9): [True: 304, False: 136k]
  |  Branch (76:9): [True: 136k, False: 0]
  |  Branch (76:9): [True: 137k, False: 0]
  ------------------
   77|   137k|        assert(n >= 0 || static_cast<size_t>(-n) <= i_);
  ------------------
  |  Branch (77:9): [True: 137k, False: 0]
  |  Branch (77:9): [True: 0, False: 0]
  |  Branch (77:9): [True: 137k, False: 0]
  ------------------
   78|   137k|        i_ += n;
   79|   137k|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9incrementEv:
   60|  7.13M|    {
   61|  7.13M|        using std::get;
   62|  7.13M|        assert(i_ < v_->size);
  ------------------
  |  Branch (62:9): [True: 7.13M, False: 0]
  ------------------
   63|  7.13M|        ++i_;
   64|  7.13M|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2ERKNS1_7rrbtreeIiSA_Lj3ELj3EEE:
   39|  22.8k|        : v_{&v}
   40|  22.8k|        , i_{0}
   41|  22.8k|        , curr_{nullptr, ~size_t{}, ~size_t{}}
   42|  22.8k|    {
   43|  22.8k|    }

_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERmEEEDcDpOT_:
   31|  18.3k|    {
   32|  18.3k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  18.3k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERmEEEDcDpOT_:
   31|  68.9k|    {
   32|  68.9k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  68.9k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EEEE13visit_regularIJRNS1_15regular_sub_posISD_EERmEEEDcDpOT_:
   37|    984|    {
   38|    984|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    984|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb0EEEE13visit_regularIJRNS1_8full_posISD_EEmEEEDcDpOT_:
   37|  4.07k|    {
   38|  4.07k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.07k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_15regular_sub_posISD_EERmEEEDcDpOT_:
   37|  6.47k|    {
   38|  6.47k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  6.47k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_8full_posISD_EEmEEEDcDpOT_:
   37|    778|    {
   38|    778|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    778|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_15regular_sub_posISD_EEmEEEDcDpOT_:
   37|  1.70k|    {
   38|  1.70k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.70k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_25singleton_regular_sub_posISD_EENS1_14empty_leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   37|  10.0k|    {
   38|  10.0k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  10.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_25singleton_regular_sub_posISD_EENS1_14empty_leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  10.0k|    {
   44|  10.0k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  10.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   31|  7.28k|    {
   32|  7.28k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  7.28k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   43|  7.28k|    {
   44|  7.28k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  7.28k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE10visit_leafIJRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   49|  13.3M|    {
   50|  13.3M|        return Deriv::visit_node(std::forward<Args>(args)...);
   51|  13.3M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   31|   155M|    {
   32|   155M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   155M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE11visit_innerIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|   155M|    {
   44|   155M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|   155M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   31|   155M|    {
   32|   155M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   155M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   31|  21.2k|    {
   32|  21.2k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  21.2k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|    310|    {
   38|    310|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    310|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|    945|    {
   38|    945|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    945|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE10visit_leafIJRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   49|  4.77M|    {
   50|  4.77M|        return Deriv::visit_node(std::forward<Args>(args)...);
   51|  4.77M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   37|   574k|    {
   38|   574k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   574k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE11visit_innerIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|   574k|    {
   44|   574k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|   574k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   37|   574k|    {
   38|   574k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   574k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   37|  3.48M|    {
   38|  3.48M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  3.48M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_34concat_rebalance_plan_fill_visitorEE11visit_innerIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|  3.48M|    {
   44|  3.48M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  3.48M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   37|  3.48M|    {
   38|  3.48M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  3.48M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|  2.75k|    {
   38|  2.75k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  2.75k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   43|  2.75k|    {
   44|  2.75k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  2.75k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   31|  1.35M|    {
   32|  1.35M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.35M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  1.35M|    {
   44|  1.35M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  1.35M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  1.34M|    {
   32|  1.34M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.34M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  1.34M|    {
   44|  1.34M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  1.34M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   31|  3.59M|    {
   32|  3.59M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  3.59M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_11relaxed_posISD_EEEEEDcDpOT_:
   37|  4.70k|    {
   38|  4.70k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.70k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  1.16M|    {
   32|  1.16M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.16M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|   314k|    {
   38|   314k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   314k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   37|  1.81k|    {
   38|  1.81k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.81k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  17.2k|    {
   38|  17.2k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  17.2k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_8full_posISD_EEEEEDcDpOT_:
   37|  7.46k|    {
   38|  7.46k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  7.46k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   37|  8.87k|    {
   38|  8.87k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  8.87k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_11relaxed_posISD_EEEEEDcDpOT_:
   37|  1.47M|    {
   38|  1.47M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.47M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  10.7M|    {
   32|  10.7M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  10.7M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  1.26k|    {
   38|  1.26k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.26k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_15regular_sub_posISD_EEEEEDcDpOT_:
   31|  21.7k|    {
   32|  21.7k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  21.7k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  2.34k|    {
   38|  2.34k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  2.34k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_8full_posISD_EEEEEDcDpOT_:
   31|    544|    {
   32|    544|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    544|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_15regular_sub_posISD_EEEEEDcDpOT_:
   31|  1.11k|    {
   32|  1.11k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.11k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   31|  10.5M|    {
   32|  10.5M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  10.5M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  11.0k|    {
   38|  11.0k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  11.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  11.0k|    {
   44|  11.0k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  11.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   37|  23.2k|    {
   38|  23.2k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  23.2k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  23.2k|    {
   44|  23.2k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  23.2k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  6.19k|    {
   32|  6.19k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  6.19k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  6.19k|    {
   44|  6.19k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  6.19k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  17.0k|    {
   38|  17.0k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  17.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  17.0k|    {
   44|  17.0k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  17.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   31|  10.1k|    {
   32|  10.1k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  10.1k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   43|  10.1k|    {
   44|  10.1k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  10.1k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjSJ_RNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|  16.0k|    {
   32|  16.0k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  16.0k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjRNS1_15regular_sub_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|  2.17k|    {
   32|  2.17k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  2.17k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjRNS1_8full_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|    476|    {
   32|    476|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    476|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjRNS1_8full_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|    851|    {
   38|    851|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    851|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   31|  3.78M|    {
   32|  3.78M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  3.78M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|   216k|    {
   38|   216k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   216k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|   296k|    {
   38|   296k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   296k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|  36.1k|    {
   38|  36.1k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  36.1k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_24for_each_chunk_p_visitorEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  21.1k|    {
   38|  21.1k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  21.1k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjSJ_RNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|    561|    {
   38|    561|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    561|    }
_ZN5immer6detail4rbts12visitor_baseINS1_24for_each_chunk_p_visitorEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  8.90k|    {
   38|  8.90k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  8.90k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_24for_each_chunk_p_visitorEE13visit_regularIJRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  3.92k|    {
   38|  3.92k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  3.92k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjRNS1_11relaxed_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|  2.18k|    {
   38|  2.18k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  2.18k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERjRNS1_11relaxed_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|  1.99k|    {
   38|  1.99k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.99k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_24for_each_chunk_p_visitorEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   31|   120k|    {
   32|   120k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   120k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERPSH_RjRmEEEDcDpOT_:
   31|    973|    {
   32|    973|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    973|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERPSH_RjRmEEEDcDpOT_:
   43|    973|    {
   44|    973|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|    973|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   37|  9.68k|    {
   38|  9.68k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  9.68k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   43|  9.68k|    {
   44|  9.68k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  9.68k|    }

_ZN5immer6detail15auto_const_castINS_22unsafe_refcount_policyEEERT_RKS3_:
  143|   719M|{
  144|   719M|    return const_cast<T&>(x);
  145|   719M|}
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE7inner_tEPSC_Lb0EE15get_storage_ptrEv:
  113|   420M|    {
  114|   420M|        check_base();
  115|   420M|        auto* base = static_cast<Derived*>(this);
  116|   420M|        return reinterpret_cast<T*>(base + 1);
  117|   420M|    }
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE7inner_tEPSC_Lb0EE10check_baseEv:
  134|   420M|    {
  135|   420M|        static_assert(std::is_standard_layout<Derived>::value &&
  136|   420M|                          !std::is_empty<Derived>::value,
  137|   420M|                      "Please add 'true' if the derived class is emtpy");
  138|   420M|    }
_ZN5immer6detail9static_ifILb1EZNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14delete_inner_rEPSC_jEUlT_E_EENSt3__19enable_ifIXT_EvE4typeEOT0_:
  329|  46.6M|{
  330|  46.6M|    std::forward<F>(f)(empty_t{});
  331|  46.6M|}
_ZN5immer6detail9destroy_nIPijEENSt3__19enable_ifIX20can_trivially_detroyIT_EES5_E4typeES5_T0_:
  188|  3.00M|{
  189|  3.00M|    return first + n;
  190|  3.00M|}
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6leaf_tEiLb1EE15get_storage_ptrEv:
   75|  18.6M|    {
   76|  18.6M|        check_base();
   77|  18.6M|        return reinterpret_cast<T*>(this);
   78|  18.6M|    }
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6leaf_tEiLb1EE10check_baseEv:
   94|  18.6M|    {
   95|       |        // is_standard_layout requires that only one class in the hierarchy
   96|       |        // contains non-static data members. Since this class contains one
   97|       |        // member, the static_assert will only hold when the derived class is
   98|       |        // empty.
   99|  18.6M|        static_assert(std::is_standard_layout<Derived>::value,
  100|  18.6M|                      "Please remove 'true' if the derived class is non emtpy");
  101|  18.6M|    }
_ZN5immer6detail18uninitialized_copyIPiS2_S2_EENSt3__19enable_ifIX18can_trivially_copyIT_T1_EES6_E4typeES5_T0_S6_:
  236|  4.38M|{
  237|  4.38M|    return std::copy(first, last, out);
  238|  4.38M|}
_ZN5immer6detail9static_ifILb0EPNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEZNSC_15make_inner_sr_nEjPNS0_3csl10member_twoINSC_14relaxed_data_tENSE_6memberIS8_NSE_7inheritINSA_5applyIS7_E4type5owneeEvE4typeEE4typeEE4typeEEUlT_E_ZNSC_15make_inner_sr_nEjST_EUlSU_E0_EENSt3__19enable_ifIXntT_ET0_E4typeEOT1_OT2_:
  344|   364k|{
  345|   364k|    return std::forward<F2>(f2)(empty_t{});
  346|   364k|}
_ZN5immer6detail4ipowImEET_S2_j:
  323|  76.2M|{
  324|  76.2M|    return pow == 0 ? 1 : num * ipow(num, pow - 1);
  ------------------
  |  Branch (324:12): [True: 3.63M, False: 72.6M]
  ------------------
  325|  76.2M|}
_ZN5immer6detail9static_ifILb0EPNS0_3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14relaxed_data_tENS2_6memberISA_NS2_7inheritINSC_5applyIS9_E4type5owneeEvE4typeEE4typeEE4typeEZNSE_24ensure_mutable_relaxed_nENSK_4editEjEUlT_E_ZNSE_24ensure_mutable_relaxed_nEST_jEUlSU_E0_EENSt3__19enable_ifIXntT_ET0_E4typeEOT1_OT2_:
  344|   202k|{
  345|   202k|    return std::forward<F2>(f2)(empty_t{});
  346|   202k|}
_ZN5immer6detail9static_ifILb1EZNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14make_inner_r_eENSA_5applyIS7_E4type4editEEUlT_E_EENSt3__19enable_ifIXT_EvE4typeEOT0_:
  329|   161k|{
  330|   161k|    std::forward<F>(f)(empty_t{});
  331|   161k|}
_ZN5immer6detail9static_ifILb0EPNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEZNSC_15make_inner_sr_eENSA_5applyIS7_E4type4editEPNS0_3csl10member_twoINSC_14relaxed_data_tENSI_6memberIS8_NSI_7inheritINSG_5owneeEvE4typeEE4typeEE4typeEEUlT_E_ZNSC_15make_inner_sr_eESH_SU_EUlSV_E0_EENSt3__19enable_ifIXntT_ET0_E4typeEOT1_OT2_:
  344|  21.9k|{
  345|  21.9k|    return std::forward<F2>(f2)(empty_t{});
  346|  21.9k|}
_ZN5immer6detail9destroy_nIPimEENSt3__19enable_ifIX20can_trivially_detroyIT_EES5_E4typeES5_T0_:
  188|    349|{
  189|    349|    return first + n;
  190|    349|}
_ZN5immer6detail9static_ifILb0EPNS0_3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14relaxed_data_tENS2_6memberISA_NS2_7inheritINSC_5applyIS9_E4type5owneeEvE4typeEE4typeEE4typeEZNSE_22ensure_mutable_relaxedENSK_4editEEUlT_E_ZNSE_22ensure_mutable_relaxedEST_EUlSU_E0_EENSt3__19enable_ifIXntT_ET0_E4typeEOT1_OT2_:
  344|   232k|{
  345|   232k|    return std::forward<F2>(f2)(empty_t{});
  346|   232k|}
_ZN5immer6detail18uninitialized_moveIPiS2_EENSt3__19enable_ifIX18can_trivially_copyIT_T0_EES6_E4typeES5_S5_S6_:
  210|  15.2k|{
  211|  15.2k|    return std::copy(first, last, out);
  212|  15.2k|}
_ZN5immer6detail8as_constIiEEPKT_PS2_:
   29|  1.01M|{
   30|  1.01M|    return x;
   31|  1.01M|}
_ZN5immer6detail4makeINS_15debug_size_heapINS_8cpp_heapEEENS_3boxIiNS_13memory_policyINS_21free_list_heap_policyIS3_Lm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE6holderEJiEEEPT0_DpOT1_:
  260|  16.6k|{
  261|  16.6k|    auto ptr = Heap::allocate(sizeof(T));
  262|  16.6k|    IMMER_TRY {
  ------------------
  |  |   49|  16.6k|#define IMMER_TRY try
  ------------------
  263|  16.6k|        return new (ptr) T(std::forward<Args>(args)...);
  264|  16.6k|    }
  265|  16.6k|    IMMER_CATCH (...) {
  266|      0|        Heap::deallocate(sizeof(T), ptr);
  267|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  268|      0|    }
  269|  16.6k|}

_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2Ev:
   96|  80.9k|    flex_vector() = default;
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9push_backEi:
  246|   279k|    {
  247|   279k|        return impl_.push_back(std::move(value));
  248|   279k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEC2ENS_6detail4rbts7rrbtreeIiS8_Lj3ELj3EEE:
  536|  2.69M|        : impl_(std::move(impl))
  537|  2.69M|    {
  538|       |#if IMMER_DEBUG_PRINT
  539|       |        // force the compiler to generate debug_print, so we can call
  540|       |        // it from a debugger
  541|       |        [](volatile auto) {}(&flex_vector::debug_print);
  542|       |#endif
  543|  2.69M|    }
_ZNK5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4sizeEv:
  181|  4.83M|    IMMER_NODISCARD size_type size() const { return impl_.size; }
flex-vector-st.cpp:_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E_EES9_mOSE_:
  323|   204k|    {
  324|   204k|        return impl_.update(index, std::forward<FnT>(fn));
  325|   204k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4takeEm:
  350|  21.9k|    {
  351|  21.9k|        return impl_.take(elems);
  352|  21.9k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4dropEm:
  376|  29.2k|    {
  377|  29.2k|        return impl_.drop(elems);
  378|  29.2k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE8max_sizeEv:
   90|  1.46M|    constexpr static size_type max_size() { return impl_t::max_size(); }
_ZN5immerplERKNS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEESB_:
  403|  2.16M|    {
  404|  2.16M|        return l.impl_.concat(r.impl_);
  405|  2.16M|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9push_backEi:
  251|  27.0k|    {
  252|  27.0k|        return push_back_move(move_t{}, std::move(value));
  253|  27.0k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE14push_back_moveENSt3__117integral_constantIbLb1EEEi:
  547|  27.0k|    {
  548|  27.0k|        impl_.push_back_mut({}, std::move(value));
  549|  27.0k|        return std::move(*this);
  550|  27.0k|    }
flex-vector-st.cpp:_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E0_EEDcmOSE_:
  329|  16.4k|    {
  330|  16.4k|        return update_move(move_t{}, index, std::forward<FnT>(fn));
  331|  16.4k|    }
flex-vector-st.cpp:_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11update_moveIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E0_EEOS9_NSt3__117integral_constantIbLb1EEEmOSE_:
  568|  16.4k|    {
  569|  16.4k|        impl_.update_mut({}, index, std::forward<Fn>(fn));
  570|  16.4k|        return std::move(*this);
  571|  16.4k|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4takeEm:
  355|  33.8k|    {
  356|  33.8k|        return take_move(move_t{}, elems);
  357|  33.8k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9take_moveENSt3__117integral_constantIbLb1EEEm:
  579|  33.8k|    {
  580|  33.8k|        impl_.take_mut({}, elems);
  581|  33.8k|        return std::move(*this);
  582|  33.8k|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE4dropEm:
  381|  75.4k|    {
  382|  75.4k|        return drop_move(move_t{}, elems);
  383|  75.4k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE9drop_moveENSt3__117integral_constantIbLb1EEEm:
  589|  75.4k|    {
  590|  75.4k|        impl_.drop_mut({}, elems);
  591|  75.4k|        return std::move(*this);
  592|  75.4k|    }
_ZN5immerplEONS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEERKS9_:
  409|   327k|    {
  410|   327k|        return concat_move(move_t{}, std::move(l), r);
  411|   327k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEEOS9_RKS9_:
  600|   327k|    {
  601|   327k|        concat_mut_l(l.impl_, {}, r.impl_);
  602|   327k|        return std::move(l);
  603|   327k|    }
_ZN5immerplERKNS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEEOS9_:
  415|  3.28k|    {
  416|  3.28k|        return concat_move(move_t{}, l, std::move(r));
  417|  3.28k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEERKS9_OS9_:
  606|  3.28k|    {
  607|  3.28k|        concat_mut_r(l.impl_, r.impl_, {});
  608|  3.28k|        return std::move(r);
  609|  3.28k|    }
_ZN5immerplEONS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEESA_:
  421|   365k|    {
  422|   365k|        return concat_move(move_t{}, std::move(l), std::move(r));
  423|   365k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEEOS9_SD_:
  612|   365k|    {
  613|   365k|        concat_mut_lr_l(l.impl_, {}, r.impl_, {});
  614|   365k|        return std::move(l);
  615|   365k|    }
_ZNK5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EEeqERKS9_:
  222|  28.7k|    {
  223|  28.7k|        return impl_.equals(other.impl_);
  224|  28.7k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE5eraseEm:
  480|  3.53k|    {
  481|  3.53k|        return take(pos) + drop(pos + 1);
  482|  3.53k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb0ELb1EEELj3ELj3EE6insertEmi:
  442|  16.6k|    {
  443|  16.6k|        return take(pos).push_back(std::move(value)) + drop(pos);
  444|  16.6k|    }

_ZN5immer8cpp_heap10deallocateEmPv:
   36|   101M|    static void deallocate(std::size_t, void* data) { ::operator delete(data); }
_ZN5immer8cpp_heap8allocateIJEEEPvmDpT_:
   27|  55.0M|    {
   28|  55.0M|        return ::operator new(size);
   29|  55.0M|    }
_ZN5immer8cpp_heap8allocateIJNS_10norefs_tagEEEEPvmDpT_:
   27|  46.2M|    {
   28|  46.2M|        return ::operator new(size);
   29|  46.2M|    }

_ZN5immer15debug_size_heapINS_8cpp_heapEE8allocateIJEEEPvmDpT_:
   49|  16.6k|    {
   50|  16.6k|        auto p = (std::size_t*) Base::allocate(size + extra_size, tags...);
   51|  16.6k|        new (p) std::size_t{size};
   52|  16.6k|        return ((char*) p) + extra_size;
   53|  16.6k|    }
_ZN5immer15debug_size_heapINS_8cpp_heapEE10deallocateIJEEEvmPvDpT_:
   57|  16.6k|    {
   58|  16.6k|        auto p = (std::size_t*) (((char*) data) - extra_size);
   59|  16.6k|        assert(*p == size);
  ------------------
  |  Branch (59:9): [True: 16.6k, False: 0]
  ------------------
   60|  16.6k|        Base::deallocate(size + extra_size, p, tags...);
   61|  16.6k|    }

_ZN5immer15refcount_policyC2Ev:
   28|  16.6k|        : refcount{1} {};
_ZN5immer15refcount_policy3decEv:
   36|  16.6k|    bool dec() { return 1 == refcount.fetch_sub(1, std::memory_order_acq_rel); }

_ZN5immer22unsafe_refcount_policyC2Ev:
   27|   101M|        : refcount{1} {};
_ZN5immer22unsafe_refcount_policy3incEv:
   33|   307M|    void inc() { ++refcount; }
_ZN5immer22unsafe_refcount_policy3decEv:
   34|   408M|    bool dec() { return --refcount == 0; }
_ZN5immer22unsafe_refcount_policy6uniqueEv:
   35|  3.25M|    bool unique() { return refcount == 1; }

_ZNK5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5ownee5ownedEv:
   36|   101M|                bool owned() const { return false; }
_ZNK5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5ownee10can_mutateENS6_4editE:
   35|   204k|                bool can_mutate(edit) const { return false; }
_ZN5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeaSENS6_4editE:
   34|   854k|                ownee& operator=(edit) { return *this; };

