LLVMFuzzerTestOneInput:
   24|  10.7k|{
   25|  10.7k|    constexpr auto var_count = 8;
   26|  10.7k|    constexpr auto bits      = 3;
   27|       |
   28|  10.7k|    using vector_t = immer::flex_vector<int, bo_memory, bits, bits>;
   29|  10.7k|    using size_t   = std::uint8_t;
   30|       |
   31|  10.7k|    auto vars = std::array<vector_t, var_count>{};
   32|       |
   33|  10.7k|    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
   34|  10.7k|    auto is_valid_var_neq = [](auto other) {
   35|  10.7k|        return [=](auto idx) {
   36|  10.7k|            return idx >= 0 && idx < var_count && idx != other;
   37|  10.7k|        };
   38|  10.7k|    };
   39|  10.7k|    auto is_valid_index = [](auto& v) {
   40|  10.7k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
   41|  10.7k|    };
   42|  10.7k|    auto is_valid_size = [](auto& v) {
   43|  10.7k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
   44|  10.7k|    };
   45|  10.7k|    auto can_concat = [](auto&& v1, auto&& v2) {
   46|  10.7k|        return v1.size() + v2.size() < vector_t::max_size();
   47|  10.7k|    };
   48|  10.7k|    auto can_compare = [](auto&& v) {
   49|       |        // avoid comparing vectors that are too big, and hence, slow to compare
   50|  10.7k|        return v.size() < (1 << 15);
   51|  10.7k|    };
   52|  10.7k|    return fuzzer_input{data, size}.run([&](auto& in) {
   53|  10.7k|        enum ops
   54|  10.7k|        {
   55|  10.7k|            op_push_back,
   56|  10.7k|            op_update,
   57|  10.7k|            op_take,
   58|  10.7k|            op_drop,
   59|  10.7k|            op_concat,
   60|  10.7k|            op_push_back_move,
   61|  10.7k|            op_update_move,
   62|  10.7k|            op_take_move,
   63|  10.7k|            op_drop_move,
   64|  10.7k|            op_concat_move_l,
   65|  10.7k|            op_concat_move_r,
   66|  10.7k|            op_concat_move_lr,
   67|  10.7k|            op_insert,
   68|  10.7k|            op_erase,
   69|  10.7k|            op_compare,
   70|  10.7k|        };
   71|  10.7k|        auto src = read<char>(in, is_valid_var);
   72|  10.7k|        auto dst = read<char>(in, is_valid_var);
   73|  10.7k|        switch (read<char>(in)) {
   74|  10.7k|        case op_push_back: {
   75|  10.7k|            vars[dst] = vars[src].push_back(42);
   76|  10.7k|            break;
   77|  10.7k|        }
   78|  10.7k|        case op_update: {
   79|  10.7k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
   80|  10.7k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
   81|  10.7k|            break;
   82|  10.7k|        }
   83|  10.7k|        case op_take: {
   84|  10.7k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
   85|  10.7k|            vars[dst] = vars[src].take(idx);
   86|  10.7k|            break;
   87|  10.7k|        }
   88|  10.7k|        case op_drop: {
   89|  10.7k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
   90|  10.7k|            vars[dst] = vars[src].drop(idx);
   91|  10.7k|            break;
   92|  10.7k|        }
   93|  10.7k|        case op_concat: {
   94|  10.7k|            auto src2 = read<char>(in, is_valid_var);
   95|  10.7k|            if (can_concat(vars[src], vars[src2]))
   96|  10.7k|                vars[dst] = vars[src] + vars[src2];
   97|  10.7k|            break;
   98|  10.7k|        }
   99|  10.7k|        case op_push_back_move: {
  100|  10.7k|            vars[dst] = std::move(vars[src]).push_back(21);
  101|  10.7k|            break;
  102|  10.7k|        }
  103|  10.7k|        case op_update_move: {
  104|  10.7k|            auto idx = read<size_t>(in, is_valid_index(vars[src]));
  105|  10.7k|            vars[dst] =
  106|  10.7k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
  107|  10.7k|            break;
  108|  10.7k|        }
  109|  10.7k|        case op_take_move: {
  110|  10.7k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  111|  10.7k|            vars[dst] = std::move(vars[src]).take(idx);
  112|  10.7k|            break;
  113|  10.7k|        }
  114|  10.7k|        case op_drop_move: {
  115|  10.7k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  116|  10.7k|            vars[dst] = std::move(vars[src]).drop(idx);
  117|  10.7k|            break;
  118|  10.7k|        }
  119|  10.7k|        case op_concat_move_l: {
  120|  10.7k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  121|  10.7k|            if (can_concat(vars[src], vars[src2]))
  122|  10.7k|                vars[dst] = std::move(vars[src]) + vars[src2];
  123|  10.7k|            break;
  124|  10.7k|        }
  125|  10.7k|        case op_concat_move_r: {
  126|  10.7k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  127|  10.7k|            if (can_concat(vars[src], vars[src2]))
  128|  10.7k|                vars[dst] = vars[src] + std::move(vars[src2]);
  129|  10.7k|            break;
  130|  10.7k|        }
  131|  10.7k|        case op_concat_move_lr: {
  132|  10.7k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  133|  10.7k|            if (can_concat(vars[src], vars[src2]))
  134|  10.7k|                vars[dst] = std::move(vars[src]) + std::move(vars[src2]);
  135|  10.7k|            break;
  136|  10.7k|        }
  137|  10.7k|        case op_compare: {
  138|  10.7k|            using std::swap;
  139|  10.7k|            if (can_compare(vars[src]) && vars[src] == vars[dst])
  140|  10.7k|                swap(vars[src], vars[dst]);
  141|  10.7k|            break;
  142|  10.7k|        }
  143|  10.7k|        case op_erase: {
  144|  10.7k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
  145|  10.7k|            vars[dst] = vars[src].erase(idx);
  146|  10.7k|            break;
  147|  10.7k|        }
  148|  10.7k|        case op_insert: {
  149|  10.7k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  150|  10.7k|            vars[dst] = vars[src].insert(idx, immer::box<int>{42});
  151|  10.7k|            break;
  152|  10.7k|        }
  153|  10.7k|        default:
  154|  10.7k|            break;
  155|  10.7k|        };
  156|  10.7k|        return true;
  157|  10.7k|    });
  158|  10.7k|}
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_:
   52|  2.70M|    return fuzzer_input{data, size}.run([&](auto& in) {
   53|  2.70M|        enum ops
   54|  2.70M|        {
   55|  2.70M|            op_push_back,
   56|  2.70M|            op_update,
   57|  2.70M|            op_take,
   58|  2.70M|            op_drop,
   59|  2.70M|            op_concat,
   60|  2.70M|            op_push_back_move,
   61|  2.70M|            op_update_move,
   62|  2.70M|            op_take_move,
   63|  2.70M|            op_drop_move,
   64|  2.70M|            op_concat_move_l,
   65|  2.70M|            op_concat_move_r,
   66|  2.70M|            op_concat_move_lr,
   67|  2.70M|            op_insert,
   68|  2.70M|            op_erase,
   69|  2.70M|            op_compare,
   70|  2.70M|        };
   71|  2.70M|        auto src = read<char>(in, is_valid_var);
   72|  2.70M|        auto dst = read<char>(in, is_valid_var);
   73|  2.70M|        switch (read<char>(in)) {
   74|   352k|        case op_push_back: {
  ------------------
  |  Branch (74:9): [True: 352k, False: 2.35M]
  ------------------
   75|   352k|            vars[dst] = vars[src].push_back(42);
   76|   352k|            break;
   77|      0|        }
   78|   151k|        case op_update: {
  ------------------
  |  Branch (78:9): [True: 151k, False: 2.55M]
  ------------------
   79|   151k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
   80|   151k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
   81|   151k|            break;
   82|      0|        }
   83|  1.96k|        case op_take: {
  ------------------
  |  Branch (83:9): [True: 1.96k, False: 2.70M]
  ------------------
   84|  1.96k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
   85|  1.96k|            vars[dst] = vars[src].take(idx);
   86|  1.96k|            break;
   87|      0|        }
   88|  14.3k|        case op_drop: {
  ------------------
  |  Branch (88:9): [True: 14.3k, False: 2.68M]
  ------------------
   89|  14.3k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
   90|  14.3k|            vars[dst] = vars[src].drop(idx);
   91|  14.3k|            break;
   92|      0|        }
   93|   681k|        case op_concat: {
  ------------------
  |  Branch (93:9): [True: 681k, False: 2.02M]
  ------------------
   94|   681k|            auto src2 = read<char>(in, is_valid_var);
   95|   681k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (95:17): [True: 655k, False: 25.9k]
  ------------------
   96|   655k|                vars[dst] = vars[src] + vars[src2];
   97|   681k|            break;
   98|      0|        }
   99|  24.6k|        case op_push_back_move: {
  ------------------
  |  Branch (99:9): [True: 24.6k, False: 2.67M]
  ------------------
  100|  24.6k|            vars[dst] = std::move(vars[src]).push_back(21);
  101|  24.6k|            break;
  102|      0|        }
  103|  32.1k|        case op_update_move: {
  ------------------
  |  Branch (103:9): [True: 32.1k, False: 2.67M]
  ------------------
  104|  32.1k|            auto idx = read<size_t>(in, is_valid_index(vars[src]));
  105|  32.1k|            vars[dst] =
  106|  32.1k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
  107|  32.1k|            break;
  108|      0|        }
  109|  32.2k|        case op_take_move: {
  ------------------
  |  Branch (109:9): [True: 32.2k, False: 2.67M]
  ------------------
  110|  32.2k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  111|  32.2k|            vars[dst] = std::move(vars[src]).take(idx);
  112|  32.2k|            break;
  113|      0|        }
  114|  61.3k|        case op_drop_move: {
  ------------------
  |  Branch (114:9): [True: 61.3k, False: 2.64M]
  ------------------
  115|  61.3k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  116|  61.3k|            vars[dst] = std::move(vars[src]).drop(idx);
  117|  61.3k|            break;
  118|      0|        }
  119|   226k|        case op_concat_move_l: {
  ------------------
  |  Branch (119:9): [True: 226k, False: 2.47M]
  ------------------
  120|   226k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  121|   226k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (121:17): [True: 222k, False: 3.98k]
  ------------------
  122|   222k|                vars[dst] = std::move(vars[src]) + vars[src2];
  123|   226k|            break;
  124|      0|        }
  125|  4.59k|        case op_concat_move_r: {
  ------------------
  |  Branch (125:9): [True: 4.59k, False: 2.69M]
  ------------------
  126|  4.59k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  127|  4.59k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (127:17): [True: 4.06k, False: 538]
  ------------------
  128|  4.06k|                vars[dst] = vars[src] + std::move(vars[src2]);
  129|  4.59k|            break;
  130|      0|        }
  131|   975k|        case op_concat_move_lr: {
  ------------------
  |  Branch (131:9): [True: 975k, False: 1.72M]
  ------------------
  132|   975k|            auto src2 = read<char>(in, is_valid_var_neq(src));
  133|   975k|            if (can_concat(vars[src], vars[src2]))
  ------------------
  |  Branch (133:17): [True: 966k, False: 9.28k]
  ------------------
  134|   966k|                vars[dst] = std::move(vars[src]) + std::move(vars[src2]);
  135|   975k|            break;
  136|      0|        }
  137|  90.8k|        case op_compare: {
  ------------------
  |  Branch (137:9): [True: 90.8k, False: 2.61M]
  ------------------
  138|  90.8k|            using std::swap;
  139|  90.8k|            if (can_compare(vars[src]) && vars[src] == vars[dst])
  ------------------
  |  Branch (139:17): [True: 79.6k, False: 11.1k]
  |  Branch (139:43): [True: 5.59k, False: 74.0k]
  ------------------
  140|  5.59k|                swap(vars[src], vars[dst]);
  141|  90.8k|            break;
  142|      0|        }
  143|  6.86k|        case op_erase: {
  ------------------
  |  Branch (143:9): [True: 6.86k, False: 2.69M]
  ------------------
  144|  6.86k|            auto idx  = read<size_t>(in, is_valid_index(vars[src]));
  145|  6.86k|            vars[dst] = vars[src].erase(idx);
  146|  6.86k|            break;
  147|      0|        }
  148|  15.5k|        case op_insert: {
  ------------------
  |  Branch (148:9): [True: 15.5k, False: 2.68M]
  ------------------
  149|  15.5k|            auto idx  = read<size_t>(in, is_valid_size(vars[src]));
  150|  15.5k|            vars[dst] = vars[src].insert(idx, immer::box<int>{42});
  151|  15.5k|            break;
  152|      0|        }
  153|  21.0k|        default:
  ------------------
  |  Branch (153:9): [True: 21.0k, False: 2.68M]
  ------------------
  154|  21.0k|            break;
  155|  2.70M|        };
  156|  2.69M|        return true;
  157|  2.70M|    });
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_0clIcEEDaT_:
   33|  6.45M|    auto is_valid_var = [&](auto idx) { return idx >= 0 && idx < var_count; };
  ------------------
  |  Branch (33:48): [True: 6.27M, False: 184k]
  |  Branch (33:60): [True: 6.06M, False: 201k]
  ------------------
flex-vector-bo.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_ENKUlSC_E_clIhEEDaSC_:
   40|   217k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
  ------------------
  |  Branch (40:39): [True: 217k, False: 0]
  |  Branch (40:51): [True: 190k, False: 27.2k]
  ------------------
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_:
   39|   190k|    auto is_valid_index = [](auto& v) {
   40|   190k|        return [&](auto idx) { return idx >= 0 && idx < v.size(); };
   41|   190k|    };
flex-vector-bo.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_ENKUlS2_E_clIiEEDaS2_:
   80|   151k|            vars[dst] = vars[src].update(idx, [](auto x) { return x + 1; });
flex-vector-bo.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_ENKUlSC_E_clIhEEDaSC_:
   43|   137k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
  ------------------
  |  Branch (43:39): [True: 137k, False: 0]
  |  Branch (43:51): [True: 125k, False: 11.8k]
  ------------------
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_:
   42|   125k|    auto is_valid_size = [](auto& v) {
   43|   125k|        return [&](auto idx) { return idx >= 0 && idx <= v.size(); };
   44|   125k|    };
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_4clIRN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEESC_EEDaOT_OT0_:
   45|  1.88M|    auto can_concat = [](auto&& v1, auto&& v2) {
   46|  1.88M|        return v1.size() + v2.size() < vector_t::max_size();
   47|  1.88M|    };
flex-vector-bo.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_ENKUlS2_E0_clIiEEDaS2_:
  106|  32.1k|                std::move(vars[src]).update(idx, [](auto x) { return x + 1; });
flex-vector-bo.cpp:_ZZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_ENKUlS1_E_clIcEEDaS1_:
   35|  1.26M|        return [=](auto idx) {
   36|  1.26M|            return idx >= 0 && idx < var_count && idx != other;
  ------------------
  |  Branch (36:20): [True: 1.25M, False: 11.1k]
  |  Branch (36:32): [True: 1.23M, False: 20.5k]
  |  Branch (36:51): [True: 1.20M, False: 28.5k]
  ------------------
   37|  1.26M|        };
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_:
   34|  1.20M|    auto is_valid_var_neq = [](auto other) {
   35|  1.20M|        return [=](auto idx) {
   36|  1.20M|            return idx >= 0 && idx < var_count && idx != other;
   37|  1.20M|        };
   38|  1.20M|    };
flex-vector-bo.cpp:_ZZ22LLVMFuzzerTestOneInputENK3$_5clIRN5immer11flex_vectorIiNS1_13memory_policyINS1_11heap_policyINS1_8cpp_heapEEENS1_22unsafe_refcount_policyENS1_14no_lock_policyENS1_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaOT_:
   48|  90.8k|    auto can_compare = [](auto&& v) {
   49|       |        // avoid comparing vectors that are too big, and hence, slow to compare
   50|  90.8k|        return v.size() < (1 << 15);
   51|  90.8k|    };

flex-vector-bo.cpp:_ZN12fuzzer_input3runIZ22LLVMFuzzerTestOneInputE3$_6EEiT_:
   50|  10.7k|    {
   51|  10.7k|        if (size_ > fuzzer_input_max_size)
  ------------------
  |  Branch (51:13): [True: 6, False: 10.7k]
  ------------------
   52|      6|            return 0;
   53|  10.7k|        try {
   54|  2.70M|            while (step(*this))
  ------------------
  |  Branch (54:20): [True: 2.69M, False: 10.7k]
  ------------------
   55|  2.69M|                continue;
   56|  10.7k|        } catch (const no_more_input&) {
   57|  10.7k|        };
   58|  10.7k|        return 0;
   59|  10.7k|    }
flex-vector-bo.cpp:_Z4readIcZ22LLVMFuzzerTestOneInputE3$_0ET_R12fuzzer_inputT0_:
   70|  6.07M|{
   71|  6.07M|    auto x = read<T>(fz);
   72|  6.46M|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 385k, False: 6.07M]
  ------------------
   73|   385k|        x = read<T>(fz);
   74|  6.07M|    return x;
   75|  6.07M|}
_Z4readIcERKT_R12fuzzer_input:
   64|  10.4M|{
   65|  10.4M|    return *reinterpret_cast<const T*>(fz.next(sizeof(T), alignof(T)));
   66|  10.4M|}
_ZN12fuzzer_input4nextEmm:
   40|  10.7M|    {
   41|  10.7M|        auto& p = const_cast<void*&>(reinterpret_cast<const void*&>(data_));
   42|  10.7M|        auto r  = std::align(align, size, p, size_);
   43|  10.7M|        if (r == nullptr)
  ------------------
  |  Branch (43:13): [True: 10.7k, False: 10.7M]
  ------------------
   44|  10.7k|            throw no_more_input{};
   45|  10.7M|        return next(size);
   46|  10.7M|    }
_ZN12fuzzer_input4nextEm:
   30|  10.7M|    {
   31|  10.7M|        if (size_ < size)
  ------------------
  |  Branch (31:13): [True: 0, False: 10.7M]
  ------------------
   32|      0|            throw no_more_input{};
   33|  10.7M|        auto r = data_;
   34|  10.7M|        data_ += size;
   35|  10.7M|        size_ -= size;
   36|  10.7M|        return r;
   37|  10.7M|    }
flex-vector-bo.cpp:_Z4readIhZZ22LLVMFuzzerTestOneInputENK3$_2clIN5immer11flex_vectorIiNS2_13memory_policyINS2_11heap_policyINS2_8cpp_heapEEENS2_22unsafe_refcount_policyENS2_14no_lock_policyENS2_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_EUlSD_E_ESD_R12fuzzer_inputT0_:
   70|   190k|{
   71|   190k|    auto x = read<T>(fz);
   72|   217k|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 27.2k, False: 190k]
  ------------------
   73|  27.2k|        x = read<T>(fz);
   74|   190k|    return x;
   75|   190k|}
_Z4readIhERKT_R12fuzzer_input:
   64|   355k|{
   65|   355k|    return *reinterpret_cast<const T*>(fz.next(sizeof(T), alignof(T)));
   66|   355k|}
flex-vector-bo.cpp:_Z4readIhZZ22LLVMFuzzerTestOneInputENK3$_3clIN5immer11flex_vectorIiNS2_13memory_policyINS2_11heap_policyINS2_8cpp_heapEEENS2_22unsafe_refcount_policyENS2_14no_lock_policyENS2_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaRT_EUlSD_E_ESD_R12fuzzer_inputT0_:
   70|   125k|{
   71|   125k|    auto x = read<T>(fz);
   72|   137k|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 11.8k, False: 125k]
  ------------------
   73|  11.8k|        x = read<T>(fz);
   74|   125k|    return x;
   75|   125k|}
flex-vector-bo.cpp:_Z4readIcZZ22LLVMFuzzerTestOneInputENK3$_1clIcEEDaT_EUlS2_E_ES2_R12fuzzer_inputT0_:
   70|  1.20M|{
   71|  1.20M|    auto x = read<T>(fz);
   72|  1.26M|    while (!cond(x))
  ------------------
  |  Branch (72:12): [True: 60.3k, False: 1.20M]
  ------------------
   73|  60.3k|        x = read<T>(fz);
   74|  1.20M|    return x;
   75|  1.20M|}

_ZN5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEEC2IiviEEOT_:
   85|  15.5k|        : impl_{detail::make<heap, holder>(std::forward<Arg>(arg))}
   86|  15.5k|    {
   87|  15.5k|    }
_ZN5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE6holderC2IJiEEEDpOT_:
   47|  15.5k|            : value(std::forward<Args>(args)...)
   48|  15.5k|        {
   49|  15.5k|        }
_ZNK5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEEcvRKiEv:
  142|  15.5k|    operator const T&() const { return get(); }
_ZNK5immer3boxIiNS_13memory_policyINS_21free_list_heap_policyINS_8cpp_heapELm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE3getEv:
  139|  15.5k|    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|  15.5k|    {
  132|  15.5k|        if (impl_ && impl_->dec()) {
  ------------------
  |  Branch (132:13): [True: 15.5k, False: 0]
  |  Branch (132:22): [True: 15.5k, False: 0]
  ------------------
  133|  15.5k|            impl_->~holder();
  134|  15.5k|            heap::deallocate(sizeof(holder), impl_);
  135|  15.5k|        }
  136|  15.5k|    }

_ZN5immer6detail3csl3getINS_22unsafe_refcount_policyEEEDcRKNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEES3_NS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS3_NS1_7inheritINSC_5applyISA_E4type5owneeEvE4typeEE4typeEE4typeE:
  170|   514M|        {
  171|   514M|            return x.get_(type_t<U>{});
  172|   514M|        }
_ZNK5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_IS9_EEDcNS1_6type_tIT_EE:
  184|   514M|        {
  185|   514M|            return n.get_(t);
  186|   514M|        }
_ZNK5immer6detail3csl6memberINS_22unsafe_refcount_policyENS1_7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4typeEE4type4get_ENS1_6type_tIS3_EE:
  128|   514M|        const T& get_(type_t<T>) const { return d; }
_ZN5immer6detail3csl3getINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEEEDcRNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyIS7_NS_22unsafe_refcount_policyENS_14no_lock_policyES3_Lb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberISF_NS1_7inheritISA_vE4typeEE4typeEE4typeE:
  165|  40.8M|        {
  166|  40.8M|            return x.get_(type_t<U>{});
  167|  40.8M|        }
_ZN5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_ISK_EEDcNS1_6type_tIT_EE:
  179|  40.8M|        {
  180|  40.8M|            return n.get_(t);
  181|  40.8M|        }
_ZN5immer6detail3csl7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4type4get_ENS1_6type_tISA_EE:
  102|  40.8M|        T& get_(type_t<T>) { return *this; }
_ZN5immer6detail3csl3getINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEEEDcRKNS1_10member_twoINS0_4rbts4nodeIiNS_13memory_policyIS7_NS_22unsafe_refcount_policyENS_14no_lock_policyES3_Lb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberISF_NS1_7inheritISA_vE4typeEE4typeEE4typeE:
  170|   290k|        {
  171|   290k|            return x.get_(type_t<U>{});
  172|   290k|        }
_ZNK5immer6detail3csl10member_twoINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11impl_data_tENS1_6memberIS9_NS1_7inheritINSB_5applyIS8_E4type5owneeEvE4typeEE4typeEE4type4get_ISK_EEDcNS1_6type_tIT_EE:
  184|   290k|        {
  185|   290k|            return n.get_(t);
  186|   290k|        }
_ZNK5immer6detail3csl7inheritINS_20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeEvE4type4get_ENS1_6type_tISA_EE:
  103|   290k|        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_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EdeEv:
   99|  9.08M|    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_policyELb1ELb1EEELj3ELj3EEEEEDcOT_:
   22|  9.08M|    {
   23|  9.08M|        return x.dereference();
   24|  9.08M|    }
_ZNK5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_E7derivedEv:
   86|  9.17M|    {
   87|  9.17M|        static_assert(std::is_base_of<iterator_facade, DerivedT>::value,
   88|  9.17M|                      "must pass a derived thing");
   89|  9.17M|        return *static_cast<const DerivedT*>(this);
   90|  9.17M|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EpLEl:
  151|   174k|    {
  152|   174k|        access_t::advance(derived(), n);
  153|   174k|        return derived();
  154|   174k|    }
_ZN5immer6detail20iterator_core_access7advanceIRNS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEElEEDcOT_T0_:
   46|   174k|    {
   47|   174k|        return x.advance(d);
   48|   174k|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_E7derivedEv:
   92|  16.2M|    {
   93|  16.2M|        static_assert(std::is_base_of<iterator_facade, DerivedT>::value,
   94|  16.2M|                      "must pass a derived thing");
   95|  16.2M|        return *static_cast<DerivedT*>(this);
   96|  16.2M|    }
_ZN5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EppEv:
  119|  7.93M|    {
  120|  7.93M|        access_t::increment(derived());
  121|  7.93M|        return derived();
  122|  7.93M|    }
_ZN5immer6detail20iterator_core_access9incrementIRNS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDcOT_:
   28|  7.93M|    {
   29|  7.93M|        return x.increment();
   30|  7.93M|    }
_ZNK5immer6detail15iterator_facadeINS0_4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENSt3__126random_access_iterator_tagEiRKilPSF_EplISI_TnNSD_9enable_ifIXsrT_16is_random_accessEbE4typeELb1EEESC_l:
  164|  94.0k|    {
  165|  94.0k|        auto tmp = derived();
  166|  94.0k|        return tmp += n;
  167|  94.0k|    }

_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE17make_inner_n_intoEPvmj:
  213|  1.28M|    {
  214|  1.28M|        assert(n <= branches<B>);
  ------------------
  |  Branch (214:9): [True: 1.28M, False: 0]
  ------------------
  215|  1.28M|        assert(size >= sizeof_inner_n(n));
  ------------------
  |  Branch (215:9): [True: 1.28M, False: 0]
  ------------------
  216|  1.28M|        auto p                       = new (buffer) node_t;
  217|  1.28M|        p->impl.d.data.inner.relaxed = nullptr;
  218|  1.28M|#if IMMER_TAGGED_NODE
  219|  1.28M|        p->impl.d.kind = node_t::kind_t::inner;
  220|  1.28M|#endif
  221|  1.28M|        return p;
  222|  1.28M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14sizeof_inner_nEj:
  145|  42.3M|    {
  146|  42.3M|        return keep_headroom ? max_sizeof_inner : sizeof_packed_inner_n(n);
  ------------------
  |  Branch (146:16): [True: 42.3M, Folded]
  ------------------
  147|  42.3M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE3incEv:
  956|   134M|    {
  957|   134M|        refs(this).inc();
  958|   134M|        return this;
  959|   134M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4refsEPKSB_:
  203|   514M|    {
  204|   514M|        return auto_const_cast(get<refs_t>(x->impl));
  205|   514M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE16make_leaf_n_intoEPvmj:
  330|  1.19M|    {
  331|  1.19M|        assert(n <= branches<BL>);
  ------------------
  |  Branch (331:9): [True: 1.19M, False: 0]
  ------------------
  332|  1.19M|        assert(size >= sizeof_leaf_n(n));
  ------------------
  |  Branch (332:9): [True: 1.19M, False: 0]
  ------------------
  333|  1.19M|        auto p = new (buffer) node_t;
  334|  1.19M|#if IMMER_TAGGED_NODE
  335|  1.19M|        p->impl.d.kind = node_t::kind_t::leaf;
  336|  1.19M|#endif
  337|  1.19M|        return p;
  338|  1.19M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE13sizeof_leaf_nEj:
  160|  5.18M|    {
  161|  5.18M|        return keep_headroom ? max_sizeof_leaf : sizeof_packed_leaf_n(n);
  ------------------
  |  Branch (161:16): [True: 5.18M, Folded]
  ------------------
  162|  5.18M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE7relaxedEv:
  172|   734M|    {
  173|   734M|        IMMER_ASSERT_TAGGED(kind() == kind_t::inner);
  ------------------
  |  |   68|   734M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (173:9): [True: 734M, False: 0]
  ------------------
  174|   734M|        return impl.d.data.inner.relaxed;
  175|   734M|    }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4kindEv:
  168|  1.11G|    kind_t kind() const { return impl.d.kind; }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE3decEv:
  967|   275M|    bool dec() const { return refs(this).dec(); }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE5innerEv:
  184|   318M|    {
  185|   318M|        IMMER_ASSERT_TAGGED(kind() == kind_t::inner);
  ------------------
  |  |   68|   318M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (185:9): [True: 318M, False: 0]
  ------------------
  186|   318M|        return impl.d.data.inner.get_storage_ptr();
  187|   318M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14delete_inner_rEPSB_j:
  832|  37.2M|    {
  833|  37.2M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::inner);
  ------------------
  |  |   68|  37.2M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (833:9): [True: 37.2M, False: 0]
  ------------------
  834|  37.2M|        auto r = p->relaxed();
  835|  37.2M|        assert(r);
  ------------------
  |  Branch (835:9): [True: 37.2M, False: 0]
  ------------------
  836|  37.2M|        static_if<!embed_relaxed>([&](auto) {
  837|  37.2M|            if (node_t::refs(r).dec())
  838|  37.2M|                heap::deallocate(node_t::ownee(r).owned()
  839|  37.2M|                                     ? node_t::max_sizeof_relaxed
  840|  37.2M|                                     : node_t::sizeof_relaxed_n(n),
  841|  37.2M|                                 r);
  842|  37.2M|        });
  843|  37.2M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_inner_r
  ------------------
  |  Branch (843:26): [True: 0, False: 37.2M]
  ------------------
  844|  37.2M|                                          : node_t::sizeof_inner_r_n(n),
  845|  37.2M|                         p);
  846|  37.2M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE5owneeEPSB_:
  210|  40.8M|    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_policyELb1ELb1EEELj3ELj3EE16sizeof_inner_r_nEj:
  150|  74.3M|    {
  151|  74.3M|        return keep_headroom ? max_sizeof_inner_r : sizeof_packed_inner_r_n(n);
  ------------------
  |  Branch (151:16): [True: 74.3M, Folded]
  ------------------
  152|  74.3M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11delete_leafEPSB_j:
  861|  1.61M|    {
  862|  1.61M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::leaf);
  ------------------
  |  |   68|  1.61M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (862:9): [True: 1.61M, False: 0]
  ------------------
  863|  1.61M|        detail::destroy_n(p->leaf(), n);
  864|  1.61M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_leaf
  ------------------
  |  Branch (864:26): [True: 0, False: 1.61M]
  ------------------
  865|  1.61M|                                          : node_t::sizeof_leaf_n(n),
  866|  1.61M|                         p);
  867|  1.61M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4leafEv:
  190|  11.2M|    {
  191|  11.2M|        IMMER_ASSERT_TAGGED(kind() == kind_t::leaf);
  ------------------
  |  |   68|  11.2M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (191:9): [True: 11.2M, False: 0]
  ------------------
  192|  11.2M|        return impl.d.data.leaf.get_storage_ptr();
  193|  11.2M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12delete_innerEPSB_j:
  808|  1.37M|    {
  809|  1.37M|        IMMER_ASSERT_TAGGED(p->kind() == kind_t::inner);
  ------------------
  |  |   68|  1.37M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (809:9): [True: 1.37M, False: 0]
  ------------------
  810|  1.37M|        assert(!p->relaxed());
  ------------------
  |  Branch (810:9): [True: 1.37M, False: 0]
  ------------------
  811|  1.37M|        heap::deallocate(ownee(p).owned() ? node_t::max_sizeof_inner
  ------------------
  |  Branch (811:26): [True: 0, False: 1.37M]
  ------------------
  812|  1.37M|                                          : node_t::sizeof_inner_n(n),
  813|  1.37M|                         p);
  814|  1.37M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE17copy_leaf_emplaceIiEEPSB_SD_jOT_:
  794|   298k|    {
  795|   298k|        auto dst = copy_leaf_n(n + 1, src, n);
  796|   298k|        IMMER_TRY {
  ------------------
  |  |   49|   298k|#define IMMER_TRY try
  ------------------
  797|   298k|            new (dst->leaf() + n) T(std::forward<U>(x));
  798|   298k|        }
  799|   298k|        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|   298k|        return dst;
  805|   298k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11copy_leaf_nEjPSB_j:
  696|   298k|    {
  697|   298k|        assert(allocn >= n);
  ------------------
  |  Branch (697:9): [True: 298k, False: 0]
  ------------------
  698|   298k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   298k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (698:9): [True: 298k, False: 0]
  ------------------
  699|   298k|        auto dst = make_leaf_n(allocn);
  700|   298k|        IMMER_TRY {
  ------------------
  |  |   49|   298k|#define IMMER_TRY try
  ------------------
  701|   298k|            detail::uninitialized_copy(
  702|   298k|                src->leaf(), src->leaf() + n, dst->leaf());
  703|   298k|        }
  704|   298k|        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|   298k|        return dst;
  709|   298k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11make_leaf_nEj:
  341|  1.19M|    {
  342|  1.19M|        assert(n <= branches<BL>);
  ------------------
  |  Branch (342:9): [True: 1.19M, False: 0]
  ------------------
  343|  1.19M|        auto m = heap::allocate(sizeof_leaf_n(n));
  344|  1.19M|        return make_leaf_n_into(m, sizeof_leaf_n(n), n);
  345|  1.19M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11make_leaf_nIiEEPSB_jOT_:
  470|  53.8k|    {
  471|  53.8k|        assert(n >= 1);
  ------------------
  |  Branch (471:9): [True: 53.8k, False: 0]
  ------------------
  472|  53.8k|        auto p = make_leaf_n(n);
  473|  53.8k|        IMMER_TRY {
  ------------------
  |  |   49|  53.8k|#define IMMER_TRY try
  ------------------
  474|  53.8k|            new (p->leaf()) T(std::forward<U>(x));
  475|  53.8k|        }
  476|  53.8k|        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|  53.8k|        return p;
  481|  53.8k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE13do_copy_innerEPSB_SC_j:
  558|  1.16M|    {
  559|  1.16M|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|  1.16M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (559:9): [True: 1.16M, False: 0]
  ------------------
  560|  1.16M|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  1.16M|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (560:9): [True: 1.16M, False: 0]
  ------------------
  561|  1.16M|        auto p = src->inner();
  562|  1.16M|        inc_nodes(p, n);
  563|  1.16M|        std::copy(p, p + n, dst->inner());
  564|  1.16M|        return dst;
  565|  1.16M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9inc_nodesEPPSB_j:
  970|  27.9M|    {
  971|   129M|        for (auto i = p, e = i + n; i != e; ++i)
  ------------------
  |  Branch (971:37): [True: 101M, False: 27.9M]
  ------------------
  972|   101M|            refs(*i).inc();
  973|  27.9M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14copy_inner_r_nEjPSB_j:
  588|   230k|    {
  589|   230k|        assert(allocn >= n);
  ------------------
  |  Branch (589:9): [True: 230k, False: 0]
  ------------------
  590|   230k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|   230k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (590:9): [True: 230k, False: 0]
  ------------------
  591|   230k|        auto dst = make_inner_r_n(allocn);
  592|   230k|        return do_copy_inner_r(dst, src, n);
  593|   230k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15do_copy_inner_rEPSB_SC_j:
  610|   280k|    {
  611|   280k|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|   280k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (611:9): [True: 280k, False: 0]
  ------------------
  612|   280k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|   280k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (612:9): [True: 280k, False: 0]
  ------------------
  613|   280k|        auto src_r = src->relaxed();
  614|   280k|        auto dst_r = dst->relaxed();
  615|   280k|        inc_nodes(src->inner(), n);
  616|   280k|        std::copy(src->inner(), src->inner() + n, dst->inner());
  617|   280k|        std::copy(src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  618|   280k|        dst_r->d.count = n;
  619|   280k|        return dst;
  620|   280k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14make_inner_r_nEj:
  243|  37.1M|    {
  244|  37.1M|        assert(n <= branches<B>);
  ------------------
  |  Branch (244:9): [True: 37.1M, False: 0]
  ------------------
  245|  37.1M|        auto mp = heap::allocate(sizeof_inner_r_n(n));
  246|  37.1M|        auto mr = static_cast<void*>(nullptr);
  247|  37.1M|        if (embed_relaxed) {
  ------------------
  |  Branch (247:13): [True: 37.1M, Folded]
  ------------------
  248|  37.1M|            mr = reinterpret_cast<unsigned char*>(mp) + sizeof_inner_n(n);
  249|  37.1M|        } else {
  250|      0|            IMMER_TRY {
  ------------------
  |  |   49|      0|#define IMMER_TRY try
  ------------------
  251|      0|                mr = heap::allocate(sizeof_relaxed_n(n), norefs_tag{});
  252|      0|            }
  253|      0|            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|      0|        }
  258|  37.1M|        auto p                       = new (mp) node_t;
  259|  37.1M|        auto r                       = new (mr) relaxed_t;
  260|  37.1M|        r->d.count                   = 0;
  261|  37.1M|        p->impl.d.data.inner.relaxed = r;
  262|  37.1M|#if IMMER_TAGGED_NODE
  263|  37.1M|        p->impl.d.kind = node_t::kind_t::inner;
  264|  37.1M|#endif
  265|  37.1M|        return p;
  266|  37.1M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9make_pathEjPSB_:
  498|   435k|    {
  499|   435k|        IMMER_ASSERT_TAGGED(node->kind() == kind_t::leaf);
  ------------------
  |  |   68|   435k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (499:9): [True: 435k, False: 0]
  ------------------
  500|   435k|        if (shift == endshift<B, BL>)
  ------------------
  |  Branch (500:13): [True: 360k, False: 75.2k]
  ------------------
  501|   360k|            return node;
  502|  75.2k|        else {
  503|  75.2k|            auto n = node_t::make_inner_n(1);
  504|  75.2k|            IMMER_TRY {
  ------------------
  |  |   49|  75.2k|#define IMMER_TRY try
  ------------------
  505|  75.2k|                n->inner()[0] = make_path(shift - B, node);
  506|  75.2k|            }
  507|  75.2k|            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|  75.2k|            return n;
  512|  75.2k|        }
  513|   435k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12make_inner_nEj:
  224|  1.28M|    {
  225|  1.28M|        assert(n <= branches<B>);
  ------------------
  |  Branch (225:9): [True: 1.28M, False: 0]
  ------------------
  226|  1.28M|        auto m = heap::allocate(sizeof_inner_n(n));
  227|  1.28M|        return make_inner_n_into(m, sizeof_inner_n(n), n);
  228|  1.28M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9copy_leafEPSB_j:
  666|   165k|    {
  667|   165k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   165k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (667:9): [True: 165k, False: 0]
  ------------------
  668|   165k|        auto dst = make_leaf_n(n);
  669|   165k|        IMMER_TRY {
  ------------------
  |  |   49|   165k|#define IMMER_TRY try
  ------------------
  670|   165k|            detail::uninitialized_copy(
  671|   165k|                src->leaf(), src->leaf() + n, dst->leaf());
  672|   165k|        }
  673|   165k|        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|   165k|        return dst;
  678|   165k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15make_inner_sr_nEjPNS0_3csl6memberINSB_14relaxed_data_tEvE4typeE:
  269|   190k|    {
  270|   190k|        return static_if<embed_relaxed, node_t*>(
  271|   190k|            [&](auto) { return node_t::make_inner_r_n(n); },
  272|   190k|            [&](auto) {
  273|   190k|                auto p =
  274|   190k|                    new (heap::allocate(node_t::sizeof_inner_r_n(n))) node_t;
  275|   190k|                assert(r->d.count >= n);
  276|   190k|                node_t::refs(r).inc();
  277|   190k|                p->impl.d.data.inner.relaxed = r;
  278|   190k|#if IMMER_TAGGED_NODE
  279|   190k|                p->impl.d.kind = node_t::kind_t::inner;
  280|   190k|#endif
  281|   190k|                return p;
  282|   190k|            });
  283|   190k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15make_inner_sr_nEjPNS0_3csl6memberINSB_14relaxed_data_tEvE4typeEENKUlT_E_clINS0_7empty_tEEEDaSI_:
  271|   190k|            [&](auto) { return node_t::make_inner_r_n(n); },
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE24do_copy_inner_replace_srEPSB_SC_jjSC_:
  652|   190k|    {
  653|   190k|        if (embed_relaxed)
  ------------------
  |  Branch (653:13): [True: 190k, Folded]
  ------------------
  654|   190k|            return do_copy_inner_replace_r(dst, src, n, offset, child);
  655|      0|        else {
  656|      0|            auto p = src->inner();
  657|      0|            inc_nodes(p, offset);
  658|      0|            inc_nodes(p + offset + 1, n - offset - 1);
  659|      0|            std::copy(p, p + n, dst->inner());
  660|      0|            dst->inner()[offset] = child;
  661|      0|            return dst;
  662|      0|        }
  663|   190k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE23do_copy_inner_replace_rEPSB_SC_jjSC_:
  624|   190k|    {
  625|   190k|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|   190k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (625:9): [True: 190k, False: 0]
  ------------------
  626|   190k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|   190k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (626:9): [True: 190k, False: 0]
  ------------------
  627|   190k|        auto src_r = src->relaxed();
  628|   190k|        auto dst_r = dst->relaxed();
  629|   190k|        auto p     = src->inner();
  630|   190k|        inc_nodes(p, offset);
  631|   190k|        inc_nodes(p + offset + 1, n - offset - 1);
  632|   190k|        std::copy(src->inner(), src->inner() + n, dst->inner());
  633|   190k|        std::copy(src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  634|   190k|        dst_r->d.count       = n;
  635|   190k|        dst->inner()[offset] = child;
  636|   190k|        return dst;
  637|   190k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE21do_copy_inner_replaceEPSB_SC_jjSC_:
  569|  68.3k|    {
  570|  68.3k|        IMMER_ASSERT_TAGGED(dst->kind() == kind_t::inner);
  ------------------
  |  |   68|  68.3k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (570:9): [True: 68.3k, False: 0]
  ------------------
  571|  68.3k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  68.3k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (571:9): [True: 68.3k, False: 0]
  ------------------
  572|  68.3k|        auto p = src->inner();
  573|  68.3k|        inc_nodes(p, offset);
  574|  68.3k|        inc_nodes(p + offset + 1, n - offset - 1);
  575|  68.3k|        std::copy(p, p + n, dst->inner());
  576|  68.3k|        dst->inner()[offset] = child;
  577|  68.3k|        return dst;
  578|  68.3k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12copy_inner_nEjPSB_j:
  543|  11.4k|    {
  544|  11.4k|        assert(allocn >= n);
  ------------------
  |  Branch (544:9): [True: 11.4k, False: 0]
  ------------------
  545|  11.4k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  11.4k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (545:9): [True: 11.4k, False: 0]
  ------------------
  546|  11.4k|        auto dst = make_inner_n(allocn);
  547|  11.4k|        return do_copy_inner(dst, src, n);
  548|  11.4k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12copy_inner_rEPSB_j:
  581|  4.01k|    {
  582|  4.01k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  4.01k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (582:9): [True: 4.01k, False: 0]
  ------------------
  583|  4.01k|        auto dst = make_inner_r_n(n);
  584|  4.01k|        return do_copy_inner_r(dst, src, n);
  585|  4.01k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE13compute_shiftEv:
  977|  3.88M|    {
  978|  3.88M|        if (kind() == kind_t::leaf)
  ------------------
  |  Branch (978:13): [True: 341k, False: 3.54M]
  ------------------
  979|   341k|            return endshift<B, BL>;
  980|  3.54M|        else
  981|  3.54M|            return B + inner()[0]->compute_shift();
  982|  3.88M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE5checkEjm:
  986|   341k|    {
  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|   341k|        return true;
 1023|   341k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9copy_leafEPSB_jj:
  778|   271k|    {
  779|   271k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   271k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (779:9): [True: 271k, False: 0]
  ------------------
  780|   271k|        auto dst = make_leaf_n(last - idx);
  781|   271k|        IMMER_TRY {
  ------------------
  |  |   49|   271k|#define IMMER_TRY try
  ------------------
  782|   271k|            detail::uninitialized_copy(
  783|   271k|                src->leaf() + idx, src->leaf() + last, dst->leaf());
  784|   271k|        }
  785|   271k|        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|   271k|        return dst;
  790|   271k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9copy_leafEPSB_jSC_j:
  712|   260k|    {
  713|   260k|        IMMER_ASSERT_TAGGED(src1->kind() == kind_t::leaf);
  ------------------
  |  |   68|   260k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (713:9): [True: 260k, False: 0]
  ------------------
  714|   260k|        IMMER_ASSERT_TAGGED(src2->kind() == kind_t::leaf);
  ------------------
  |  |   68|   260k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (714:9): [True: 260k, False: 0]
  ------------------
  715|   260k|        auto dst = make_leaf_n(n1 + n2);
  716|   260k|        IMMER_TRY {
  ------------------
  |  |   49|   260k|#define IMMER_TRY try
  ------------------
  717|   260k|            detail::uninitialized_copy(
  718|   260k|                src1->leaf(), src1->leaf() + n1, dst->leaf());
  719|   260k|        }
  720|   260k|        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|   260k|        IMMER_TRY {
  ------------------
  |  |   49|   260k|#define IMMER_TRY try
  ------------------
  725|   260k|            detail::uninitialized_copy(
  726|   260k|                src2->leaf(), src2->leaf() + n2, dst->leaf() + n1);
  727|   260k|        }
  728|   260k|        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|   260k|        return dst;
  734|   260k|    }
_ZNK5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10can_mutateENS9_5applyIS6_E4type4editE:
  870|  2.79M|    {
  871|  2.79M|        return refs(this).unique() || ownee(this).can_mutate(e);
  ------------------
  |  Branch (871:16): [True: 2.50M, False: 290k]
  |  Branch (871:39): [True: 0, False: 290k]
  ------------------
  872|  2.79M|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE5owneeEPKSB_:
  207|   290k|    {
  208|   290k|        return get<ownee_t>(x->impl);
  209|   290k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_j:
  681|  43.7k|    {
  682|  43.7k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|  43.7k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (682:9): [True: 43.7k, False: 0]
  ------------------
  683|  43.7k|        auto dst = make_leaf_e(e);
  684|  43.7k|        IMMER_TRY {
  ------------------
  |  |   49|  43.7k|#define IMMER_TRY try
  ------------------
  685|  43.7k|            detail::uninitialized_copy(
  686|  43.7k|                src->leaf(), src->leaf() + n, dst->leaf());
  687|  43.7k|        }
  688|  43.7k|        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|  43.7k|        return dst;
  693|  43.7k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11make_leaf_eENS9_5applyIS6_E4type4editE:
  348|   420k|    {
  349|   420k|        auto p   = new (heap::allocate(max_sizeof_leaf)) node_t;
  350|   420k|        ownee(p) = e;
  351|   420k|#if IMMER_TAGGED_NODE
  352|   420k|        p->impl.d.kind = node_t::kind_t::leaf;
  353|   420k|#endif
  354|   420k|        return p;
  355|   420k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11make_leaf_eIiEEPSB_NS9_5applyIS6_E4type4editEOT_:
  485|  9.72k|    {
  486|  9.72k|        auto p = make_leaf_e(e);
  487|  9.72k|        IMMER_TRY {
  ------------------
  |  |   49|  9.72k|#define IMMER_TRY try
  ------------------
  488|  9.72k|            new (p->leaf()) T(std::forward<U>(x));
  489|  9.72k|        }
  490|  9.72k|        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|  9.72k|        return p;
  495|  9.72k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE24ensure_mutable_relaxed_nENS9_5applyIS6_E4type4editEj:
  930|   223k|    {
  931|   223k|        auto src_r = relaxed();
  932|   223k|        return static_if<embed_relaxed, relaxed_t*>(
  933|   223k|            [&](auto) { return src_r; },
  934|   223k|            [&](auto) {
  935|   223k|                if (node_t::refs(src_r).unique() ||
  936|   223k|                    node_t::ownee(src_r).can_mutate(e))
  937|   223k|                    return src_r;
  938|   223k|                else {
  939|   223k|                    auto dst_r =
  940|   223k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  941|   223k|                    if (src_r) {
  942|   223k|                        std::copy(
  943|   223k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  944|   223k|                        if (node_t::refs(src_r).dec())
  945|   223k|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  946|   223k|                                             src_r);
  947|   223k|                    }
  948|   223k|                    dst_r->d.count                   = n;
  949|   223k|                    node_t::ownee(dst_r)             = e;
  950|   223k|                    return impl.d.data.inner.relaxed = dst_r;
  951|   223k|                }
  952|   223k|            });
  953|   223k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE24ensure_mutable_relaxed_nENS9_5applyIS6_E4type4editEjENKUlT_E_clINS0_7empty_tEEEDaSG_:
  933|   223k|            [&](auto) { return src_r; },
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14copy_inner_r_eENS9_5applyIS6_E4type4editEPSB_j:
  596|  17.6k|    {
  597|  17.6k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  17.6k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (597:9): [True: 17.6k, False: 0]
  ------------------
  598|  17.6k|        auto dst = make_inner_r_e(e);
  599|  17.6k|        return do_copy_inner_r(dst, src, n);
  600|  17.6k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14make_inner_r_eENS9_5applyIS6_E4type4editE:
  286|   148k|    {
  287|   148k|        auto mp = heap::allocate(max_sizeof_inner_r);
  288|   148k|        auto mr = static_cast<void*>(nullptr);
  289|   148k|        if (embed_relaxed) {
  ------------------
  |  Branch (289:13): [True: 148k, Folded]
  ------------------
  290|   148k|            mr = reinterpret_cast<unsigned char*>(mp) + max_sizeof_inner;
  291|   148k|        } else {
  292|      0|            IMMER_TRY {
  ------------------
  |  |   49|      0|#define IMMER_TRY try
  ------------------
  293|      0|                mr = heap::allocate(max_sizeof_relaxed, norefs_tag{});
  294|      0|            }
  295|      0|            IMMER_CATCH (...) {
  296|      0|                heap::deallocate(max_sizeof_inner_r, mp);
  297|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  298|      0|            }
  299|      0|        }
  300|   148k|        auto p   = new (mp) node_t;
  301|   148k|        auto r   = new (mr) relaxed_t;
  302|   148k|        ownee(p) = e;
  303|   148k|        static_if<!embed_relaxed>([&](auto) { node_t::ownee(r) = e; });
  304|   148k|        r->d.count                   = 0;
  305|   148k|        p->impl.d.data.inner.relaxed = r;
  306|   148k|#if IMMER_TAGGED_NODE
  307|   148k|        p->impl.d.kind = node_t::kind_t::inner;
  308|   148k|#endif
  309|   148k|        return p;
  310|   148k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11make_path_eENS9_5applyIS6_E4type4editEjPSB_:
  516|   434k|    {
  517|   434k|        IMMER_ASSERT_TAGGED(node->kind() == kind_t::leaf);
  ------------------
  |  |   68|   434k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (517:9): [True: 434k, False: 0]
  ------------------
  518|   434k|        if (shift == endshift<B, BL>)
  ------------------
  |  Branch (518:13): [True: 377k, False: 57.6k]
  ------------------
  519|   377k|            return node;
  520|  57.6k|        else {
  521|  57.6k|            auto n = node_t::make_inner_e(e);
  522|  57.6k|            IMMER_TRY {
  ------------------
  |  |   49|  57.6k|#define IMMER_TRY try
  ------------------
  523|  57.6k|                n->inner()[0] = make_path_e(e, shift - B, node);
  524|  57.6k|            }
  525|  57.6k|            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|  57.6k|            return n;
  530|  57.6k|        }
  531|   434k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12make_inner_eENS9_5applyIS6_E4type4editE:
  231|  87.8k|    {
  232|  87.8k|        auto m                       = heap::allocate(max_sizeof_inner);
  233|  87.8k|        auto p                       = new (m) node_t;
  234|  87.8k|        ownee(p)                     = e;
  235|  87.8k|        p->impl.d.data.inner.relaxed = nullptr;
  236|  87.8k|#if IMMER_TAGGED_NODE
  237|  87.8k|        p->impl.d.kind = node_t::kind_t::inner;
  238|  87.8k|#endif
  239|  87.8k|        return p;
  240|  87.8k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE12copy_inner_eENS9_5applyIS6_E4type4editEPSB_j:
  551|  19.3k|    {
  552|  19.3k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  19.3k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (552:9): [True: 19.3k, False: 0]
  ------------------
  553|  19.3k|        auto dst = make_inner_e(e);
  554|  19.3k|        return do_copy_inner(dst, src, n);
  555|  19.3k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15copy_inner_sr_eENS9_5applyIS6_E4type4editEPSB_j:
  603|  27.6k|    {
  604|  27.6k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::inner);
  ------------------
  |  |   68|  27.6k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (604:9): [True: 27.6k, False: 0]
  ------------------
  605|  27.6k|        auto dst = make_inner_sr_e(e, src->relaxed());
  606|  27.6k|        return do_copy_inner_sr(dst, src, n);
  607|  27.6k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15make_inner_sr_eENS9_5applyIS6_E4type4editEPNS0_3csl6memberINSB_14relaxed_data_tEvE4typeE:
  313|  27.6k|    {
  314|  27.6k|        return static_if<embed_relaxed, node_t*>(
  315|  27.6k|            [&](auto) { return node_t::make_inner_r_e(e); },
  316|  27.6k|            [&](auto) {
  317|  27.6k|                auto p =
  318|  27.6k|                    new (heap::allocate(node_t::max_sizeof_inner_r)) node_t;
  319|  27.6k|                node_t::refs(r).inc();
  320|  27.6k|                p->impl.d.data.inner.relaxed = r;
  321|  27.6k|                node_t::ownee(p)             = e;
  322|  27.6k|#if IMMER_TAGGED_NODE
  323|  27.6k|                p->impl.d.kind = node_t::kind_t::inner;
  324|  27.6k|#endif
  325|  27.6k|                return p;
  326|  27.6k|            });
  327|  27.6k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE15make_inner_sr_eENS9_5applyIS6_E4type4editEPNS0_3csl6memberINSB_14relaxed_data_tEvE4typeEENKUlT_E_clINS0_7empty_tEEEDaSM_:
  315|  27.6k|            [&](auto) { return node_t::make_inner_r_e(e); },
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE16do_copy_inner_srEPSB_SC_j:
  640|  27.6k|    {
  641|  27.6k|        if (embed_relaxed)
  ------------------
  |  Branch (641:13): [True: 27.6k, Folded]
  ------------------
  642|  27.6k|            return do_copy_inner_r(dst, src, n);
  643|      0|        else {
  644|      0|            inc_nodes(src->inner(), n);
  645|      0|            std::copy(src->inner(), src->inner() + n, dst->inner());
  646|      0|            return dst;
  647|      0|        }
  648|  27.6k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_jj:
  763|   366k|    {
  764|   366k|        IMMER_ASSERT_TAGGED(src->kind() == kind_t::leaf);
  ------------------
  |  |   68|   366k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (764:9): [True: 366k, False: 0]
  ------------------
  765|   366k|        auto dst = make_leaf_e(e);
  766|   366k|        IMMER_TRY {
  ------------------
  |  |   49|   366k|#define IMMER_TRY try
  ------------------
  767|   366k|            detail::uninitialized_copy(
  768|   366k|                src->leaf() + idx, src->leaf() + last, dst->leaf());
  769|   366k|        }
  770|   366k|        IMMER_CATCH (...) {
  771|      0|            heap::deallocate(max_sizeof_leaf, dst);
  772|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  773|      0|        }
  774|   366k|        return dst;
  775|   366k|    }
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE22ensure_mutable_relaxedENS9_5applyIS6_E4type4editE:
  877|   178k|    {
  878|   178k|        auto src_r = relaxed();
  879|   178k|        return static_if<embed_relaxed, relaxed_t*>(
  880|   178k|            [&](auto) { return src_r; },
  881|   178k|            [&](auto) {
  882|   178k|                if (node_t::refs(src_r).unique() ||
  883|   178k|                    node_t::ownee(src_r).can_mutate(e))
  884|   178k|                    return src_r;
  885|   178k|                else {
  886|   178k|                    auto dst_r = impl.d.data.inner.relaxed =
  887|   178k|                        new (heap::allocate(max_sizeof_relaxed)) relaxed_t;
  888|   178k|                    if (src_r) {
  889|   178k|                        auto n = dst_r->d.count = src_r->d.count;
  890|   178k|                        std::copy(
  891|   178k|                            src_r->d.sizes, src_r->d.sizes + n, dst_r->d.sizes);
  892|   178k|                        if (node_t::refs(src_r).dec())
  893|   178k|                            heap::deallocate(node_t::sizeof_inner_r_n(n),
  894|   178k|                                             src_r);
  895|   178k|                    }
  896|   178k|                    node_t::ownee(dst_r) = e;
  897|   178k|                    return dst_r;
  898|   178k|                }
  899|   178k|            });
  900|   178k|    }
_ZZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE22ensure_mutable_relaxedENS9_5applyIS6_E4type4editEENKUlT_E_clINS0_7empty_tEEEDaSG_:
  880|   178k|            [&](auto) { return src_r; },
_ZN5immer6detail4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11copy_leaf_eENS9_5applyIS6_E4type4editEPSB_jSG_j:
  738|    540|    {
  739|    540|        IMMER_ASSERT_TAGGED(src1->kind() == kind_t::leaf);
  ------------------
  |  |   68|    540|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (739:9): [True: 540, False: 0]
  ------------------
  740|    540|        IMMER_ASSERT_TAGGED(src2->kind() == kind_t::leaf);
  ------------------
  |  |   68|    540|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (740:9): [True: 540, False: 0]
  ------------------
  741|    540|        auto dst = make_leaf_e(e);
  742|    540|        IMMER_TRY {
  ------------------
  |  |   49|    540|#define IMMER_TRY try
  ------------------
  743|    540|            detail::uninitialized_copy(
  744|    540|                src1->leaf(), src1->leaf() + n1, dst->leaf());
  745|    540|        }
  746|    540|        IMMER_CATCH (...) {
  747|      0|            heap::deallocate(max_sizeof_leaf, dst);
  748|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  749|      0|        }
  750|    540|        IMMER_TRY {
  ------------------
  |  |   49|    540|#define IMMER_TRY try
  ------------------
  751|    540|            detail::uninitialized_copy(
  752|    540|                src2->leaf(), src2->leaf() + n2, dst->leaf() + n1);
  753|    540|        }
  754|    540|        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|    540|        return dst;
  760|    540|    }

_ZN5immer6detail4rbts11dec_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  523|   186M|    {
  524|   186M|        using node_t = node_type<Pos>;
  525|   186M|        auto node    = p.node();
  526|   186M|        if (node->dec()) {
  ------------------
  |  Branch (526:13): [True: 37.2M, False: 149M]
  ------------------
  527|  37.2M|            p.each(this_t{});
  528|  37.2M|            node_t::delete_inner_r(node, p.count());
  529|  37.2M|        }
  530|   186M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  15.3M|    {
  535|  15.3M|        using node_t = node_type<Pos>;
  536|  15.3M|        auto node    = p.node();
  537|  15.3M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 425k, False: 14.9M]
  ------------------
  538|   425k|            p.each(this_t{});
  539|   425k|            node_t::delete_inner(node, p.count());
  540|   425k|        }
  541|  15.3M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  1.69M|    {
  546|  1.69M|        using node_t = node_type<Pos>;
  547|  1.69M|        auto node    = p.node();
  548|  1.69M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 578k, False: 1.11M]
  ------------------
  549|   578k|            node_t::delete_leaf(node, p.count());
  550|   578k|        }
  551|  1.69M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  545|   390k|    {
  546|   390k|        using node_t = node_type<Pos>;
  547|   390k|        auto node    = p.node();
  548|   390k|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 47.8k, False: 342k]
  ------------------
  549|  47.8k|            node_t::delete_leaf(node, p.count());
  550|  47.8k|        }
  551|   390k|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  2.74M|    {
  535|  2.74M|        using node_t = node_type<Pos>;
  536|  2.74M|        auto node    = p.node();
  537|  2.74M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 98.1k, False: 2.65M]
  ------------------
  538|  98.1k|            p.each(this_t{});
  539|  98.1k|            node_t::delete_inner(node, p.count());
  540|  98.1k|        }
  541|  2.74M|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  534|   887k|    {
  535|   887k|        using node_t = node_type<Pos>;
  536|   887k|        auto node    = p.node();
  537|   887k|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 837k, False: 49.2k]
  ------------------
  538|   837k|            p.each(this_t{});
  539|   837k|            node_t::delete_inner(node, p.count());
  540|   837k|        }
  541|   887k|    }
_ZN5immer6detail4rbts11dec_visitor13visit_regularIRNS1_17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  534|  1.47M|    {
  535|  1.47M|        using node_t = node_type<Pos>;
  536|  1.47M|        auto node    = p.node();
  537|  1.47M|        if (node->dec()) {
  ------------------
  |  Branch (537:13): [True: 0, False: 1.47M]
  ------------------
  538|      0|            p.each(this_t{});
  539|      0|            node_t::delete_inner(node, p.count());
  540|      0|        }
  541|  1.47M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  65.3M|    {
  546|  65.3M|        using node_t = node_type<Pos>;
  547|  65.3M|        auto node    = p.node();
  548|  65.3M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 986k, False: 64.3M]
  ------------------
  549|   986k|            node_t::delete_leaf(node, p.count());
  550|   986k|        }
  551|  65.3M|    }
_ZN5immer6detail4rbts11dec_visitor10visit_leafIRNS1_14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_:
  545|  1.34M|    {
  546|  1.34M|        using node_t = node_type<Pos>;
  547|  1.34M|        auto node    = p.node();
  548|  1.34M|        if (node->dec()) {
  ------------------
  |  Branch (548:13): [True: 0, False: 1.34M]
  ------------------
  549|      0|            node_t::delete_leaf(node, p.count());
  550|      0|        }
  551|  1.34M|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_SI_j:
  791|   233k|    {
  792|   233k|        auto level    = pos.shift();
  793|   233k|        auto idx      = pos.count() - 1;
  794|   233k|        auto children = pos.size(idx);
  795|   233k|        auto new_idx =
  796|   233k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (796:13): [True: 14.3k, False: 219k]
  |  Branch (796:47): [True: 687, False: 218k]
  ------------------
  797|   233k|        auto new_child = static_cast<node_t*>(nullptr);
  798|   233k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (798:13): [True: 4.64k, False: 229k]
  ------------------
  799|  4.64k|            return nullptr;
  800|   229k|        else if (idx == new_idx) {
  ------------------
  |  Branch (800:18): [True: 218k, False: 10.4k]
  ------------------
  801|   218k|            new_child = pos.last_oh_csh(this_t{}, idx, children, tail, ts);
  802|   218k|            if (!new_child) {
  ------------------
  |  Branch (802:17): [True: 5.78k, False: 212k]
  ------------------
  803|  5.78k|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (803:21): [True: 2.73k, False: 3.05k]
  ------------------
  804|  2.73k|                    new_child = node_t::make_path(level - B, tail);
  805|  3.05k|                else
  806|  3.05k|                    return nullptr;
  807|  5.78k|            }
  808|   218k|        } else
  809|  10.4k|            new_child = node_t::make_path(level - B, tail);
  810|   226k|        IMMER_TRY {
  ------------------
  |  |   49|   226k|#define IMMER_TRY try
  ------------------
  811|   226k|            auto count = new_idx + 1;
  812|   226k|            auto new_parent =
  813|   226k|                node_t::copy_inner_r_n(count, pos.node(), new_idx);
  814|   226k|            auto new_relaxed              = new_parent->relaxed();
  815|   226k|            new_parent->inner()[new_idx]  = new_child;
  816|   226k|            new_relaxed->d.sizes[new_idx] = pos.size() + ts;
  817|   226k|            new_relaxed->d.count          = count;
  818|   226k|            assert(new_relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (818:13): [True: 226k, False: 0]
  ------------------
  819|   226k|            return new_parent;
  820|   226k|        }
  821|   226k|        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|   226k|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_SJ_DpOT0_:
  834|  42.6k|    {
  835|  42.6k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 42.6k, False: 0]
  ------------------
  836|  42.6k|        auto idx        = pos.index(pos.size() - 1);
  837|  42.6k|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|  42.6k|        auto count      = new_idx + 1;
  839|  42.6k|        auto new_parent = node_t::make_inner_n(count);
  840|  42.6k|        IMMER_TRY {
  ------------------
  |  |   49|  42.6k|#define IMMER_TRY try
  ------------------
  841|  42.6k|            new_parent->inner()[new_idx] =
  842|  42.6k|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 31.5k, False: 11.1k]
  ------------------
  843|       |                               /* otherwise */
  844|  42.6k|                               : node_t::make_path(pos.shift() - B, tail);
  845|  42.6k|        }
  846|  42.6k|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|  42.6k|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|  42.6k|    }
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_SI_DpOT0_:
  834|   797k|    {
  835|   797k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 797k, False: 0]
  ------------------
  836|   797k|        auto idx        = pos.index(pos.size() - 1);
  837|   797k|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|   797k|        auto count      = new_idx + 1;
  839|   797k|        auto new_parent = node_t::make_inner_n(count);
  840|   797k|        IMMER_TRY {
  ------------------
  |  |   49|   797k|#define IMMER_TRY try
  ------------------
  841|   797k|            new_parent->inner()[new_idx] =
  842|   797k|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 501k, False: 296k]
  ------------------
  843|       |                               /* otherwise */
  844|   797k|                               : node_t::make_path(pos.shift() - B, tail);
  845|   797k|        }
  846|   797k|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|   797k|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|   797k|    }
_ZN5immer6detail4rbts9dec_innerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEvPT_jm:
  562|    422|{
  563|    422|    visit_maybe_relaxed_sub(node, shift, size, dec_visitor());
  564|    422|}
_ZN5immer6detail4rbts17push_tail_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEJEEEPSC_OT_SI_DpOT0_:
  834|   285k|    {
  835|   285k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (835:9): [True: 285k, False: 0]
  ------------------
  836|   285k|        auto idx        = pos.index(pos.size() - 1);
  837|   285k|        auto new_idx    = pos.index(pos.size() + branches<BL> - 1);
  838|   285k|        auto count      = new_idx + 1;
  839|   285k|        auto new_parent = node_t::make_inner_n(count);
  840|   285k|        IMMER_TRY {
  ------------------
  |  |   49|   285k|#define IMMER_TRY try
  ------------------
  841|   285k|            new_parent->inner()[new_idx] =
  842|   285k|                idx == new_idx ? pos.last_oh(this_t{}, idx, tail)
  ------------------
  |  Branch (842:17): [True: 264k, False: 21.2k]
  ------------------
  843|       |                               /* otherwise */
  844|   285k|                               : node_t::make_path(pos.shift() - B, tail);
  845|   285k|        }
  846|   285k|        IMMER_CATCH (...) {
  847|      0|            node_t::delete_inner(new_parent, count);
  848|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  849|      0|        }
  850|   285k|        return node_t::do_copy_inner(new_parent, pos.node(), new_idx);
  851|   285k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|   100k|    {
  503|   100k|        auto offset = pos.index(idx);
  504|   100k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|   100k|        IMMER_TRY {
  ------------------
  |  |   49|   100k|#define IMMER_TRY try
  ------------------
  506|   100k|            node->leaf()[offset] =
  507|   100k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|   100k|            return node;
  509|   100k|        }
  510|   100k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|   100k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  466|   190k|    {
  467|   190k|        auto offset = pos.index(idx);
  468|   190k|        auto count  = pos.count();
  469|   190k|        auto node   = node_t::make_inner_sr_n(count, pos.relaxed());
  470|   190k|        IMMER_TRY {
  ------------------
  |  |   49|   190k|#define IMMER_TRY try
  ------------------
  471|   190k|            auto child = pos.towards_oh(this_t{}, idx, offset, fn);
  472|   190k|            node_t::do_copy_inner_replace_sr(
  473|   190k|                node, pos.node(), count, offset, child);
  474|   190k|            return node;
  475|   190k|        }
  476|   190k|        IMMER_CATCH (...) {
  477|      0|            node_t::delete_inner_r(node, count);
  478|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  479|      0|        }
  480|   190k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  50.8k|    {
  485|  50.8k|        auto offset = pos.index(idx);
  486|  50.8k|        auto count  = pos.count();
  487|  50.8k|        auto node   = node_t::make_inner_n(count);
  488|  50.8k|        IMMER_TRY {
  ------------------
  |  |   49|  50.8k|#define IMMER_TRY try
  ------------------
  489|  50.8k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  50.8k|            node_t::do_copy_inner_replace(
  491|  50.8k|                node, pos.node(), count, offset, child);
  492|  50.8k|            return node;
  493|  50.8k|        }
  494|  50.8k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  50.8k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|  17.7k|    {
  503|  17.7k|        auto offset = pos.index(idx);
  504|  17.7k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|  17.7k|        IMMER_TRY {
  ------------------
  |  |   49|  17.7k|#define IMMER_TRY try
  ------------------
  506|  17.7k|            node->leaf()[offset] =
  507|  17.7k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|  17.7k|            return node;
  509|  17.7k|        }
  510|  17.7k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|  17.7k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_8full_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  13.4k|    {
  485|  13.4k|        auto offset = pos.index(idx);
  486|  13.4k|        auto count  = pos.count();
  487|  13.4k|        auto node   = node_t::make_inner_n(count);
  488|  13.4k|        IMMER_TRY {
  ------------------
  |  |   49|  13.4k|#define IMMER_TRY try
  ------------------
  489|  13.4k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  13.4k|            node_t::do_copy_inner_replace(
  491|  13.4k|                node, pos.node(), count, offset, child);
  492|  13.4k|            return node;
  493|  13.4k|        }
  494|  13.4k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  13.4k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_8leaf_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  502|  33.1k|    {
  503|  33.1k|        auto offset = pos.index(idx);
  504|  33.1k|        auto node   = node_t::copy_leaf(pos.node(), pos.count());
  505|  33.1k|        IMMER_TRY {
  ------------------
  |  |   49|  33.1k|#define IMMER_TRY try
  ------------------
  506|  33.1k|            node->leaf()[offset] =
  507|  33.1k|                std::forward<Fn>(fn)(std::move(node->leaf()[offset]));
  508|  33.1k|            return node;
  509|  33.1k|        }
  510|  33.1k|        IMMER_CATCH (...) {
  511|      0|            node_t::delete_leaf(node, pos.count());
  512|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  513|      0|        }
  514|  33.1k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts14update_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EERZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEPSC_OSL_mOT0_:
  484|  3.99k|    {
  485|  3.99k|        auto offset = pos.index(idx);
  486|  3.99k|        auto count  = pos.count();
  487|  3.99k|        auto node   = node_t::make_inner_n(count);
  488|  3.99k|        IMMER_TRY {
  ------------------
  |  |   49|  3.99k|#define IMMER_TRY try
  ------------------
  489|  3.99k|            auto child = pos.towards_oh_ch(this_t{}, idx, offset, count, fn);
  490|  3.99k|            node_t::do_copy_inner_replace(
  491|  3.99k|                node, pos.node(), count, offset, child);
  492|  3.99k|            return node;
  493|  3.99k|        }
  494|  3.99k|        IMMER_CATCH (...) {
  495|      0|            node_t::delete_inner(node, count);
  496|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  497|      0|        }
  498|  3.99k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1096|  35.7k|    {
 1097|  35.7k|        auto idx = pos.index(last);
 1098|  35.7k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1098:13): [True: 35.7k, Folded]
  |  Branch (1098:25): [True: 28.1k, False: 7.59k]
  ------------------
 1099|  28.1k|            return pos.towards_oh(this_t{}, last, idx);
 1100|  28.1k|        } else {
 1101|  7.59k|            using std::get;
 1102|  7.59k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1103|  7.59k|            auto next = get<1>(subs);
 1104|  7.59k|            auto ts   = get<2>(subs);
 1105|  7.59k|            auto tail = get<3>(subs);
 1106|  7.59k|            IMMER_TRY {
  ------------------
  |  |   49|  7.59k|#define IMMER_TRY try
  ------------------
 1107|  7.59k|                if (next) {
  ------------------
  |  Branch (1107:21): [True: 4.20k, False: 3.38k]
  ------------------
 1108|  4.20k|                    auto count = idx + 1;
 1109|  4.20k|                    auto newn  = node_t::copy_inner_r_n(count, pos.node(), idx);
 1110|  4.20k|                    auto newr  = newn->relaxed();
 1111|  4.20k|                    newn->inner()[idx] = next;
 1112|  4.20k|                    newr->d.sizes[idx] = last + 1 - ts;
 1113|  4.20k|                    newr->d.count      = count;
 1114|  4.20k|                    assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (1114:21): [True: 4.20k, False: 0]
  ------------------
 1115|  4.20k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1116|  4.20k|                } else if (idx == 0) {
  ------------------
  |  Branch (1116:28): [True: 0, False: 3.38k]
  ------------------
 1117|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1118|  3.38k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1118:28): [True: 3.38k, Folded]
  |  Branch (1118:40): [True: 1.71k, False: 1.67k]
  |  Branch (1118:52): [True: 960, False: 755]
  ------------------
 1119|    960|                    auto newn = pos.node()->inner()[0];
 1120|    960|                    return std::make_tuple(
 1121|    960|                        pos.shift() - B, newn->inc(), ts, tail);
 1122|  2.42k|                } else {
 1123|  2.42k|                    auto newn = node_t::copy_inner_r(pos.node(), idx);
 1124|  2.42k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1125|  2.42k|                }
 1126|  7.59k|            }
 1127|  7.59k|            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|  7.59k|        }
 1138|  35.7k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  1.72k|    {
 1182|  1.72k|        auto old_tail_size = pos.count();
 1183|  1.72k|        auto new_tail_size = pos.index(last) + 1;
 1184|  1.72k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 414, False: 1.30k]
  ------------------
 1185|  1.72k|                                 ? pos.node()->inc()
 1186|  1.72k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  1.72k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  1.72k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  4.36k|    {
 1182|  4.36k|        auto old_tail_size = pos.count();
 1183|  4.36k|        auto new_tail_size = pos.index(last) + 1;
 1184|  4.36k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.45k, False: 2.91k]
  ------------------
 1185|  4.36k|                                 ? pos.node()->inc()
 1186|  4.36k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  4.36k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  4.36k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1096|  3.51k|    {
 1097|  3.51k|        auto idx = pos.index(last);
 1098|  3.51k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1098:13): [Folded, False: 3.51k]
  |  Branch (1098:25): [True: 0, False: 0]
  ------------------
 1099|      0|            return pos.towards_oh(this_t{}, last, idx);
 1100|  3.51k|        } else {
 1101|  3.51k|            using std::get;
 1102|  3.51k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1103|  3.51k|            auto next = get<1>(subs);
 1104|  3.51k|            auto ts   = get<2>(subs);
 1105|  3.51k|            auto tail = get<3>(subs);
 1106|  3.51k|            IMMER_TRY {
  ------------------
  |  |   49|  3.51k|#define IMMER_TRY try
  ------------------
 1107|  3.51k|                if (next) {
  ------------------
  |  Branch (1107:21): [True: 769, False: 2.74k]
  ------------------
 1108|    769|                    auto count = idx + 1;
 1109|    769|                    auto newn  = node_t::copy_inner_r_n(count, pos.node(), idx);
 1110|    769|                    auto newr  = newn->relaxed();
 1111|    769|                    newn->inner()[idx] = next;
 1112|    769|                    newr->d.sizes[idx] = last + 1 - ts;
 1113|    769|                    newr->d.count      = count;
 1114|    769|                    assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (1114:21): [True: 769, False: 0]
  ------------------
 1115|    769|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1116|  2.74k|                } else if (idx == 0) {
  ------------------
  |  Branch (1116:28): [True: 1.16k, False: 1.58k]
  ------------------
 1117|  1.16k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1118|  1.58k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1118:28): [Folded, False: 1.58k]
  |  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|  1.58k|                } else {
 1123|  1.58k|                    auto newn = node_t::copy_inner_r(pos.node(), idx);
 1124|  1.58k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1125|  1.58k|                }
 1126|  3.51k|            }
 1127|  3.51k|            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|  3.51k|        }
 1138|  3.51k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  3.23k|    {
 1143|  3.23k|        auto idx = pos.index(last);
 1144|  3.23k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 3.23k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  3.23k|        } else {
 1147|  3.23k|            using std::get;
 1148|  3.23k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  3.23k|            auto next = get<1>(subs);
 1150|  3.23k|            auto ts   = get<2>(subs);
 1151|  3.23k|            auto tail = get<3>(subs);
 1152|  3.23k|            IMMER_TRY {
  ------------------
  |  |   49|  3.23k|#define IMMER_TRY try
  ------------------
 1153|  3.23k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 1.83k, False: 1.39k]
  ------------------
 1154|  1.83k|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|  1.83k|                    newn->inner()[idx] = next;
 1156|  1.83k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  1.83k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 611, False: 782]
  ------------------
 1158|    611|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|    782|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 782]
  |  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|    782|                } else {
 1164|    782|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|    782|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|    782|                }
 1167|  3.23k|            }
 1168|  3.23k|            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|  3.23k|        }
 1177|  3.23k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  6.30k|    {
 1182|  6.30k|        auto old_tail_size = pos.count();
 1183|  6.30k|        auto new_tail_size = pos.index(last) + 1;
 1184|  6.30k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.69k, False: 4.61k]
  ------------------
 1185|  6.30k|                                 ? pos.node()->inc()
 1186|  6.30k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  6.30k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  6.30k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  2.32k|    {
 1143|  2.32k|        auto idx = pos.index(last);
 1144|  2.32k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 2.32k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  2.32k|        } else {
 1147|  2.32k|            using std::get;
 1148|  2.32k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.32k|            auto next = get<1>(subs);
 1150|  2.32k|            auto ts   = get<2>(subs);
 1151|  2.32k|            auto tail = get<3>(subs);
 1152|  2.32k|            IMMER_TRY {
  ------------------
  |  |   49|  2.32k|#define IMMER_TRY try
  ------------------
 1153|  2.32k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 238, False: 2.08k]
  ------------------
 1154|    238|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    238|                    newn->inner()[idx] = next;
 1156|    238|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  2.08k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 483, False: 1.60k]
  ------------------
 1158|    483|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  1.60k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 1.60k]
  |  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|  1.60k|                } else {
 1164|  1.60k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  1.60k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  1.60k|                }
 1167|  2.32k|            }
 1168|  2.32k|            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|  2.32k|        }
 1177|  2.32k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  2.71k|    {
 1182|  2.71k|        auto old_tail_size = pos.count();
 1183|  2.71k|        auto new_tail_size = pos.index(last) + 1;
 1184|  2.71k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 1.35k, False: 1.36k]
  ------------------
 1185|  2.71k|                                 ? pos.node()->inc()
 1186|  2.71k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  2.71k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  2.71k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  3.11k|    {
 1143|  3.11k|        auto idx = pos.index(last);
 1144|  3.11k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [Folded, False: 3.11k]
  |  Branch (1144:25): [True: 0, False: 0]
  ------------------
 1145|      0|            return pos.towards_oh(this_t{}, last, idx);
 1146|  3.11k|        } else {
 1147|  3.11k|            using std::get;
 1148|  3.11k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  3.11k|            auto next = get<1>(subs);
 1150|  3.11k|            auto ts   = get<2>(subs);
 1151|  3.11k|            auto tail = get<3>(subs);
 1152|  3.11k|            IMMER_TRY {
  ------------------
  |  |   49|  3.11k|#define IMMER_TRY try
  ------------------
 1153|  3.11k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 824, False: 2.29k]
  ------------------
 1154|    824|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    824|                    newn->inner()[idx] = next;
 1156|    824|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  2.29k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 963, False: 1.32k]
  ------------------
 1158|    963|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  1.32k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [Folded, False: 1.32k]
  |  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|  1.32k|                } else {
 1164|  1.32k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  1.32k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  1.32k|                }
 1167|  3.11k|            }
 1168|  3.11k|            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|  3.11k|        }
 1177|  3.11k|    }
_ZN5immer6detail4rbts8dec_leafINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEvPT_j:
  556|  39.7k|{
  557|  39.7k|    make_leaf_sub_pos(node, n).visit(dec_visitor{});
  558|  39.7k|}
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  8.37k|    {
 1143|  8.37k|        auto idx = pos.index(last);
 1144|  8.37k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [True: 8.37k, Folded]
  |  Branch (1144:25): [True: 5.58k, False: 2.78k]
  ------------------
 1145|  5.58k|            return pos.towards_oh(this_t{}, last, idx);
 1146|  5.58k|        } else {
 1147|  2.78k|            using std::get;
 1148|  2.78k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.78k|            auto next = get<1>(subs);
 1150|  2.78k|            auto ts   = get<2>(subs);
 1151|  2.78k|            auto tail = get<3>(subs);
 1152|  2.78k|            IMMER_TRY {
  ------------------
  |  |   49|  2.78k|#define IMMER_TRY try
  ------------------
 1153|  2.78k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 708, False: 2.07k]
  ------------------
 1154|    708|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    708|                    newn->inner()[idx] = next;
 1156|    708|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  2.07k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 0, False: 2.07k]
  ------------------
 1158|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  2.07k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [True: 2.07k, Folded]
  |  Branch (1159:40): [True: 1.30k, False: 775]
  |  Branch (1159:52): [True: 692, False: 612]
  ------------------
 1160|    692|                    auto newn = pos.node()->inner()[0];
 1161|    692|                    return std::make_tuple(
 1162|    692|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|  1.38k|                } else {
 1164|  1.38k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  1.38k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  1.38k|                }
 1167|  2.78k|            }
 1168|  2.78k|            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|  2.78k|        }
 1177|  8.37k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|  1.82k|    {
 1182|  1.82k|        auto old_tail_size = pos.count();
 1183|  1.82k|        auto new_tail_size = pos.index(last) + 1;
 1184|  1.82k|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 667, False: 1.16k]
  ------------------
 1185|  1.82k|                                 ? pos.node()->inc()
 1186|  1.82k|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|  1.82k|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|  1.82k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1142|  5.36k|    {
 1143|  5.36k|        auto idx = pos.index(last);
 1144|  5.36k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (1144:13): [True: 5.36k, Folded]
  |  Branch (1144:25): [True: 2.36k, False: 2.99k]
  ------------------
 1145|  2.36k|            return pos.towards_oh(this_t{}, last, idx);
 1146|  2.99k|        } else {
 1147|  2.99k|            using std::get;
 1148|  2.99k|            auto subs = pos.towards_oh(no_collapse_t{}, last, idx);
 1149|  2.99k|            auto next = get<1>(subs);
 1150|  2.99k|            auto ts   = get<2>(subs);
 1151|  2.99k|            auto tail = get<3>(subs);
 1152|  2.99k|            IMMER_TRY {
  ------------------
  |  |   49|  2.99k|#define IMMER_TRY try
  ------------------
 1153|  2.99k|                if (next) {
  ------------------
  |  Branch (1153:21): [True: 384, False: 2.61k]
  ------------------
 1154|    384|                    auto newn = node_t::copy_inner_n(idx + 1, pos.node(), idx);
 1155|    384|                    newn->inner()[idx] = next;
 1156|    384|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1157|  2.61k|                } else if (idx == 0) {
  ------------------
  |  Branch (1157:28): [True: 0, False: 2.61k]
  ------------------
 1158|      0|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1159|  2.61k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1159:28): [True: 2.61k, Folded]
  |  Branch (1159:40): [True: 710, False: 1.90k]
  |  Branch (1159:52): [True: 259, False: 451]
  ------------------
 1160|    259|                    auto newn = pos.node()->inner()[0];
 1161|    259|                    return std::make_tuple(
 1162|    259|                        pos.shift() - B, newn->inc(), ts, tail);
 1163|  2.35k|                } else {
 1164|  2.35k|                    auto newn = node_t::copy_inner_n(idx, pos.node(), idx);
 1165|  2.35k|                    return std::make_tuple(pos.shift(), newn, ts, tail);
 1166|  2.35k|                }
 1167|  2.99k|            }
 1168|  2.99k|            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|  2.99k|        }
 1177|  5.36k|    }
_ZN5immer6detail4rbts19slice_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_m:
 1181|    760|    {
 1182|    760|        auto old_tail_size = pos.count();
 1183|    760|        auto new_tail_size = pos.index(last) + 1;
 1184|    760|        auto new_tail      = new_tail_size == old_tail_size
  ------------------
  |  Branch (1184:30): [True: 336, False: 424]
  ------------------
 1185|    760|                                 ? pos.node()->inc()
 1186|    760|                                 : node_t::copy_leaf(pos.node(), new_tail_size);
 1187|    760|        return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1188|    760|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  23.9k|    {
 1415|  23.9k|        auto idx                = pos.subindex(first);
 1416|  23.9k|        auto count              = pos.count();
 1417|  23.9k|        auto left_size          = pos.size_before(idx);
 1418|  23.9k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  23.9k|        auto dropped_size       = first;
 1420|  23.9k|        auto child_dropped_size = dropped_size - left_size;
 1421|  23.9k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 23.9k, Folded]
  |  Branch (1421:25): [True: 22.0k, False: 1.91k]
  |  Branch (1421:45): [True: 4.04k, False: 17.9k]
  ------------------
 1422|  4.04k|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  19.8k|        } else {
 1424|  19.8k|            using std::get;
 1425|  19.8k|            auto n    = pos.node();
 1426|  19.8k|            auto newc = count - idx;
 1427|  19.8k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  19.8k|            IMMER_TRY {
  ------------------
  |  |   49|  19.8k|#define IMMER_TRY try
  ------------------
 1429|  19.8k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  19.8k|                auto newr     = newn->relaxed();
 1431|  19.8k|                newr->d.count = count - idx;
 1432|  19.8k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  19.8k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 19.8k, False: 0]
  ------------------
 1434|  19.8k|                pos.copy_sizes(idx + 1,
 1435|  19.8k|                               newr->d.count - 1,
 1436|  19.8k|                               newr->d.sizes[0],
 1437|  19.8k|                               newr->d.sizes + 1);
 1438|  19.8k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 19.8k, False: 0]
  ------------------
 1439|  19.8k|                       pos.size() - dropped_size);
 1440|  19.8k|                newn->inner()[0] = get<1>(subs);
 1441|  19.8k|                std::copy(n->inner() + idx + 1,
 1442|  19.8k|                          n->inner() + count,
 1443|  19.8k|                          newn->inner() + 1);
 1444|  19.8k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  19.8k|                return std::make_tuple(pos.shift(), newn);
 1446|  19.8k|            }
 1447|  19.8k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  19.8k|        }
 1452|  23.9k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1456|  18.3k|    {
 1457|  18.3k|        auto n = node_t::copy_leaf(pos.node(), pos.index(first), pos.count());
 1458|  18.3k|        return std::make_tuple(0, n);
 1459|  18.3k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  93.6k|    {
 1415|  93.6k|        auto idx                = pos.subindex(first);
 1416|  93.6k|        auto count              = pos.count();
 1417|  93.6k|        auto left_size          = pos.size_before(idx);
 1418|  93.6k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  93.6k|        auto dropped_size       = first;
 1420|  93.6k|        auto child_dropped_size = dropped_size - left_size;
 1421|  93.6k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 93.6k]
  |  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|  93.6k|        } else {
 1424|  93.6k|            using std::get;
 1425|  93.6k|            auto n    = pos.node();
 1426|  93.6k|            auto newc = count - idx;
 1427|  93.6k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  93.6k|            IMMER_TRY {
  ------------------
  |  |   49|  93.6k|#define IMMER_TRY try
  ------------------
 1429|  93.6k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  93.6k|                auto newr     = newn->relaxed();
 1431|  93.6k|                newr->d.count = count - idx;
 1432|  93.6k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  93.6k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 93.6k, False: 0]
  ------------------
 1434|  93.6k|                pos.copy_sizes(idx + 1,
 1435|  93.6k|                               newr->d.count - 1,
 1436|  93.6k|                               newr->d.sizes[0],
 1437|  93.6k|                               newr->d.sizes + 1);
 1438|  93.6k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 93.6k, False: 0]
  ------------------
 1439|  93.6k|                       pos.size() - dropped_size);
 1440|  93.6k|                newn->inner()[0] = get<1>(subs);
 1441|  93.6k|                std::copy(n->inner() + idx + 1,
 1442|  93.6k|                          n->inner() + count,
 1443|  93.6k|                          newn->inner() + 1);
 1444|  93.6k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  93.6k|                return std::make_tuple(pos.shift(), newn);
 1446|  93.6k|            }
 1447|  93.6k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  93.6k|        }
 1452|  93.6k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  1.53k|    {
 1415|  1.53k|        auto idx                = pos.subindex(first);
 1416|  1.53k|        auto count              = pos.count();
 1417|  1.53k|        auto left_size          = pos.size_before(idx);
 1418|  1.53k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  1.53k|        auto dropped_size       = first;
 1420|  1.53k|        auto child_dropped_size = dropped_size - left_size;
 1421|  1.53k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 1.53k]
  |  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|  1.53k|        } else {
 1424|  1.53k|            using std::get;
 1425|  1.53k|            auto n    = pos.node();
 1426|  1.53k|            auto newc = count - idx;
 1427|  1.53k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  1.53k|            IMMER_TRY {
  ------------------
  |  |   49|  1.53k|#define IMMER_TRY try
  ------------------
 1429|  1.53k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  1.53k|                auto newr     = newn->relaxed();
 1431|  1.53k|                newr->d.count = count - idx;
 1432|  1.53k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  1.53k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 1.53k, False: 0]
  ------------------
 1434|  1.53k|                pos.copy_sizes(idx + 1,
 1435|  1.53k|                               newr->d.count - 1,
 1436|  1.53k|                               newr->d.sizes[0],
 1437|  1.53k|                               newr->d.sizes + 1);
 1438|  1.53k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 1.53k, False: 0]
  ------------------
 1439|  1.53k|                       pos.size() - dropped_size);
 1440|  1.53k|                newn->inner()[0] = get<1>(subs);
 1441|  1.53k|                std::copy(n->inner() + idx + 1,
 1442|  1.53k|                          n->inner() + count,
 1443|  1.53k|                          newn->inner() + 1);
 1444|  1.53k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  1.53k|                return std::make_tuple(pos.shift(), newn);
 1446|  1.53k|            }
 1447|  1.53k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  1.53k|        }
 1452|  1.53k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1456|  10.1k|    {
 1457|  10.1k|        auto n = node_t::copy_leaf(pos.node(), pos.index(first), pos.count());
 1458|  10.1k|        return std::make_tuple(0, n);
 1459|  10.1k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE11visit_innerIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  7.25k|    {
 1415|  7.25k|        auto idx                = pos.subindex(first);
 1416|  7.25k|        auto count              = pos.count();
 1417|  7.25k|        auto left_size          = pos.size_before(idx);
 1418|  7.25k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  7.25k|        auto dropped_size       = first;
 1420|  7.25k|        auto child_dropped_size = dropped_size - left_size;
 1421|  7.25k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [Folded, False: 7.25k]
  |  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|  7.25k|        } else {
 1424|  7.25k|            using std::get;
 1425|  7.25k|            auto n    = pos.node();
 1426|  7.25k|            auto newc = count - idx;
 1427|  7.25k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  7.25k|            IMMER_TRY {
  ------------------
  |  |   49|  7.25k|#define IMMER_TRY try
  ------------------
 1429|  7.25k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  7.25k|                auto newr     = newn->relaxed();
 1431|  7.25k|                newr->d.count = count - idx;
 1432|  7.25k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  7.25k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 7.25k, False: 0]
  ------------------
 1434|  7.25k|                pos.copy_sizes(idx + 1,
 1435|  7.25k|                               newr->d.count - 1,
 1436|  7.25k|                               newr->d.sizes[0],
 1437|  7.25k|                               newr->d.sizes + 1);
 1438|  7.25k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 7.25k, False: 0]
  ------------------
 1439|  7.25k|                       pos.size() - dropped_size);
 1440|  7.25k|                newn->inner()[0] = get<1>(subs);
 1441|  7.25k|                std::copy(n->inner() + idx + 1,
 1442|  7.25k|                          n->inner() + count,
 1443|  7.25k|                          newn->inner() + 1);
 1444|  7.25k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  7.25k|                return std::make_tuple(pos.shift(), newn);
 1446|  7.25k|            }
 1447|  7.25k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  7.25k|        }
 1452|  7.25k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|  10.4k|    {
 1415|  10.4k|        auto idx                = pos.subindex(first);
 1416|  10.4k|        auto count              = pos.count();
 1417|  10.4k|        auto left_size          = pos.size_before(idx);
 1418|  10.4k|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|  10.4k|        auto dropped_size       = first;
 1420|  10.4k|        auto child_dropped_size = dropped_size - left_size;
 1421|  10.4k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 10.4k, Folded]
  |  Branch (1421:25): [True: 7.05k, False: 3.38k]
  |  Branch (1421:45): [True: 2.60k, False: 4.45k]
  ------------------
 1422|  2.60k|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|  7.83k|        } else {
 1424|  7.83k|            using std::get;
 1425|  7.83k|            auto n    = pos.node();
 1426|  7.83k|            auto newc = count - idx;
 1427|  7.83k|            auto newn = node_t::make_inner_r_n(newc);
 1428|  7.83k|            IMMER_TRY {
  ------------------
  |  |   49|  7.83k|#define IMMER_TRY try
  ------------------
 1429|  7.83k|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|  7.83k|                auto newr     = newn->relaxed();
 1431|  7.83k|                newr->d.count = count - idx;
 1432|  7.83k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|  7.83k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 7.83k, False: 0]
  ------------------
 1434|  7.83k|                pos.copy_sizes(idx + 1,
 1435|  7.83k|                               newr->d.count - 1,
 1436|  7.83k|                               newr->d.sizes[0],
 1437|  7.83k|                               newr->d.sizes + 1);
 1438|  7.83k|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 7.83k, False: 0]
  ------------------
 1439|  7.83k|                       pos.size() - dropped_size);
 1440|  7.83k|                newn->inner()[0] = get<1>(subs);
 1441|  7.83k|                std::copy(n->inner() + idx + 1,
 1442|  7.83k|                          n->inner() + count,
 1443|  7.83k|                          newn->inner() + 1);
 1444|  7.83k|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|  7.83k|                return std::make_tuple(pos.shift(), newn);
 1446|  7.83k|            }
 1447|  7.83k|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|  7.83k|        }
 1452|  10.4k|    }
_ZN5immer6detail4rbts18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE11visit_innerIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_m:
 1414|    744|    {
 1415|    744|        auto idx                = pos.subindex(first);
 1416|    744|        auto count              = pos.count();
 1417|    744|        auto left_size          = pos.size_before(idx);
 1418|    744|        auto child_size         = pos.size_sbh(idx, left_size);
 1419|    744|        auto dropped_size       = first;
 1420|    744|        auto child_dropped_size = dropped_size - left_size;
 1421|    744|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1421:13): [True: 744, Folded]
  |  Branch (1421:25): [True: 281, False: 463]
  |  Branch (1421:45): [True: 0, False: 281]
  ------------------
 1422|      0|            return pos.towards_sub_oh(this_t{}, first, idx);
 1423|    744|        } else {
 1424|    744|            using std::get;
 1425|    744|            auto n    = pos.node();
 1426|    744|            auto newc = count - idx;
 1427|    744|            auto newn = node_t::make_inner_r_n(newc);
 1428|    744|            IMMER_TRY {
  ------------------
  |  |   49|    744|#define IMMER_TRY try
  ------------------
 1429|    744|                auto subs     = pos.towards_sub_oh(no_collapse_t{}, first, idx);
 1430|    744|                auto newr     = newn->relaxed();
 1431|    744|                newr->d.count = count - idx;
 1432|    744|                newr->d.sizes[0] = child_size - child_dropped_size;
 1433|    744|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1433:17): [True: 744, False: 0]
  ------------------
 1434|    744|                pos.copy_sizes(idx + 1,
 1435|    744|                               newr->d.count - 1,
 1436|    744|                               newr->d.sizes[0],
 1437|    744|                               newr->d.sizes + 1);
 1438|    744|                assert(newr->d.sizes[newr->d.count - 1] ==
  ------------------
  |  Branch (1438:17): [True: 744, False: 0]
  ------------------
 1439|    744|                       pos.size() - dropped_size);
 1440|    744|                newn->inner()[0] = get<1>(subs);
 1441|    744|                std::copy(n->inner() + idx + 1,
 1442|    744|                          n->inner() + count,
 1443|    744|                          newn->inner() + 1);
 1444|    744|                node_t::inc_nodes(newn->inner() + 1, newr->d.count - 1);
 1445|    744|                return std::make_tuple(pos.shift(), newn);
 1446|    744|            }
 1447|    744|            IMMER_CATCH (...) {
 1448|      0|                node_t::delete_inner_r(newn, newc);
 1449|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1450|      0|            }
 1451|    744|        }
 1452|    744|    }
_ZN5immer6detail4rbts12concat_treesINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jSG_jm:
 2001|  7.25k|{
 2002|  7.25k|    return make_singleton_regular_sub_pos(ltail, ltcount)
 2003|  7.25k|        .visit(concat_trees_left_visitor<Node>{},
 2004|  7.25k|               empty_leaf_pos<Node>{},
 2005|  7.25k|               rroot,
 2006|  7.25k|               rshift,
 2007|  7.25k|               rsize)
 2008|  7.25k|        .realize();
 2009|  7.25k|}
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_25singleton_regular_sub_posISC_EENS1_14empty_leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  7.25k|    {
 1972|  7.25k|        return visit_maybe_relaxed_sub(
 1973|  7.25k|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  7.25k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  5.00k|    {
 1959|  5.00k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  5.00k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  22.3k|{
 1873|  22.3k|    auto lshift = lpos.shift();
 1874|  22.3k|    auto rshift = rpos.shift();
 1875|  22.3k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 22.3k]
  ------------------
 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|  22.3k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 17.5k, False: 4.70k]
  ------------------
 1879|  17.5k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|  17.5k|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  17.5k|    } else {
 1882|  4.70k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 4.70k, False: 0]
  ------------------
 1883|  4.70k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 4.70k]
  |  Branch (1883:9): [True: 4.70k, False: 0]
  |  Branch (1883:9): [True: 4.70k, False: 0]
  ------------------
 1884|  4.70k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  4.70k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  4.70k|    }
 1887|  22.3k|}
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8each_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1512|  14.4M|    {
 1513|  14.4M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.16M, False: 13.2M]
  ------------------
 1514|  1.16M|            auto s = size_t{};
 1515|  4.65M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 3.48M, False: 1.16M]
  ------------------
 1516|  3.48M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  3.48M|                s = sizes_[i];
 1518|  3.48M|            }
 1519|  13.2M|        } else {
 1520|  35.9M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 22.6M, False: 13.2M]
  ------------------
 1521|  22.6M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  22.6M|                    .visit(v, args...);
 1523|  13.2M|        }
 1524|  14.4M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  8.34M|    {
 1734|  8.34M|        auto count = p.count();
 1735|  8.34M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 8.34M, False: 0]
  ------------------
 1736|  8.34M|        plan.counts[plan.n++] = count;
 1737|  8.34M|        plan.total += count;
 1738|  8.34M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|   122M|    {
 1734|   122M|        auto count = p.count();
 1735|   122M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 122M, False: 0]
  ------------------
 1736|   122M|        plan.counts[plan.n++] = count;
 1737|   122M|        plan.total += count;
 1738|   122M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE7shuffleEj:
 1762|  14.4M|    {
 1763|       |        // gcc seems to not really understand this code... :(
 1764|  14.4M|#if !defined(_MSC_VER)
 1765|  14.4M|#pragma GCC diagnostic push
 1766|  14.4M|#pragma GCC diagnostic ignored "-Warray-bounds"
 1767|  14.4M|#endif
 1768|  14.4M|        constexpr count_t rrb_extras    = 2;
 1769|  14.4M|        constexpr count_t rrb_invariant = 1;
 1770|  14.4M|        const auto bits                 = shift == BL ? BL : B;
  ------------------
  |  Branch (1770:43): [True: 1.16M, False: 13.2M]
  ------------------
 1771|  14.4M|        const auto branches             = count_t{1} << bits;
 1772|  14.4M|        const auto optimal              = ((total - 1) >> bits) + 1;
 1773|  14.4M|        count_t i                       = 0;
 1774|  17.8M|        while (n >= optimal + rrb_extras) {
  ------------------
  |  Branch (1774:16): [True: 3.41M, False: 14.4M]
  ------------------
 1775|       |            // skip ok nodes
 1776|  7.50M|            while (counts[i] > branches - rrb_invariant)
  ------------------
  |  Branch (1776:20): [True: 4.09M, False: 3.41M]
  ------------------
 1777|  4.09M|                i++;
 1778|  3.41M|            assert(i < n);
  ------------------
  |  Branch (1778:13): [True: 3.41M, False: 0]
  ------------------
 1779|       |            // short node, redistribute
 1780|  3.41M|            auto remaining = counts[i];
 1781|  13.3M|            do {
 1782|  13.3M|                auto next  = counts[i + 1];
 1783|  13.3M|                auto count = std::min(remaining + next, branches);
 1784|  13.3M|                counts[i]  = count;
 1785|  13.3M|                assert(counts[i]);
  ------------------
  |  Branch (1785:17): [True: 13.3M, False: 0]
  ------------------
 1786|  13.3M|                remaining += next - count;
 1787|  13.3M|                ++i;
 1788|  13.3M|            } while (remaining > 0);
  ------------------
  |  Branch (1788:22): [True: 9.89M, False: 3.41M]
  ------------------
 1789|       |            // remove node
 1790|  3.41M|            std::move(counts + i + 1, counts + n, counts + i);
 1791|  3.41M|            --n;
 1792|  3.41M|            --i;
 1793|  3.41M|        }
 1794|  14.4M|#if !defined(_MSC_VER)
 1795|  14.4M|#pragma GCC diagnostic pop
 1796|  14.4M|#endif
 1797|  14.4M|    }
_ZNK5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
 1478|  28.9M|    auto shift() const { return shift_; }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEC2EjPjj:
 1577|  14.4M|        : curr_{counts}
 1578|  14.4M|        , n_{n}
 1579|  14.4M|        , result_{
 1580|  14.4M|              shift + B, node_t::make_inner_r_n(std::min(n_, branches<B>)), 0}
 1581|  14.4M|    {
 1582|  14.4M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEC2EjPSC_m:
 1481|  14.4M|        : shift_{s}
 1482|  14.4M|        , count_{1}
 1483|  14.4M|        , nodes_{n0}
 1484|  14.4M|        , sizes_{s0}
 1485|  14.4M|    {
 1486|  14.4M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8each_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1512|  14.4M|    {
 1513|  14.4M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.16M, False: 13.2M]
  ------------------
 1514|  1.16M|            auto s = size_t{};
 1515|  4.65M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 3.48M, False: 1.16M]
  ------------------
 1516|  3.48M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  3.48M|                s = sizes_[i];
 1518|  3.48M|            }
 1519|  13.2M|        } else {
 1520|  35.9M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 22.6M, False: 13.2M]
  ------------------
 1521|  22.6M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  22.6M|                    .visit(v, args...);
 1523|  13.2M|        }
 1524|  14.4M|    }
_ZN5immer6detail4rbts21concat_merger_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1721|  8.34M|    {
 1722|  8.34M|        merger.merge_leaf(p);
 1723|  8.34M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10merge_leafIRNS1_12leaf_sub_posISC_EEEEvOT_:
 1614|  8.34M|    {
 1615|  8.34M|        auto from       = p.node();
 1616|  8.34M|        auto from_size  = p.size();
 1617|  8.34M|        auto from_count = p.count();
 1618|  8.34M|        assert(from_size);
  ------------------
  |  Branch (1618:9): [True: 8.34M, False: 0]
  ------------------
 1619|  8.34M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1619:13): [True: 8.20M, False: 145k]
  |  Branch (1619:21): [True: 8.13M, False: 66.7k]
  ------------------
 1620|  8.13M|            add_child(from, from_size);
 1621|  8.13M|            from->inc();
 1622|  8.13M|        } else {
 1623|   212k|            auto from_offset = count_t{};
 1624|   212k|            auto from_data   = from->leaf();
 1625|   288k|            do {
 1626|   288k|                if (!to_) {
  ------------------
  |  Branch (1626:21): [True: 142k, False: 145k]
  ------------------
 1627|   142k|                    to_        = node_t::make_leaf_n(*curr_);
 1628|   142k|                    to_offset_ = 0;
 1629|   142k|                }
 1630|   288k|                auto data = to_->leaf();
 1631|   288k|                auto to_copy =
 1632|   288k|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1633|   288k|                detail::uninitialized_copy(from_data + from_offset,
 1634|   288k|                                           from_data + from_offset + to_copy,
 1635|   288k|                                           data + to_offset_);
 1636|   288k|                to_offset_ += to_copy;
 1637|   288k|                from_offset += to_copy;
 1638|   288k|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1638:21): [True: 142k, False: 145k]
  ------------------
 1639|   142k|                    add_child(to_, to_offset_);
 1640|   142k|                    to_ = nullptr;
 1641|   142k|                }
 1642|   288k|            } while (from_offset != from_count);
  ------------------
  |  Branch (1642:22): [True: 76.0k, False: 212k]
  ------------------
 1643|   212k|        }
 1644|  8.34M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9add_childEPSC_m:
 1589|   138M|    {
 1590|   138M|        assert(size);
  ------------------
  |  Branch (1590:9): [True: 138M, False: 0]
  ------------------
 1591|   138M|        ++curr_;
 1592|   138M|        auto parent  = result_.nodes_[result_.count_ - 1];
 1593|   138M|        auto relaxed = parent->relaxed();
 1594|   138M|        if (relaxed->d.count == branches<B>) {
  ------------------
  |  Branch (1594:13): [True: 9.42M, False: 129M]
  ------------------
 1595|  9.42M|            assert(result_.count_ < result_t::max_children);
  ------------------
  |  Branch (1595:13): [True: 9.42M, False: 0]
  ------------------
 1596|  9.42M|            n_ -= branches<B>;
 1597|  9.42M|            parent  = node_t::make_inner_r_n(std::min(n_, branches<B>));
 1598|  9.42M|            relaxed = parent->relaxed();
 1599|  9.42M|            result_.nodes_[result_.count_] = parent;
 1600|  9.42M|            result_.sizes_[result_.count_] = result_.sizes_[result_.count_ - 1];
 1601|  9.42M|            assert(result_.sizes_[result_.count_]);
  ------------------
  |  Branch (1601:13): [True: 9.42M, False: 0]
  ------------------
 1602|  9.42M|            ++result_.count_;
 1603|  9.42M|        }
 1604|   138M|        auto idx = relaxed->d.count++;
 1605|   138M|        result_.sizes_[result_.count_ - 1] += size;
 1606|   138M|        assert(result_.sizes_[result_.count_ - 1]);
  ------------------
  |  Branch (1606:9): [True: 138M, False: 0]
  ------------------
 1607|   138M|        relaxed->d.sizes[idx] = size + (idx ? relaxed->d.sizes[idx - 1] : 0);
  ------------------
  |  Branch (1607:41): [True: 114M, False: 23.8M]
  ------------------
 1608|   138M|        assert(relaxed->d.sizes[idx]);
  ------------------
  |  Branch (1608:9): [True: 138M, False: 0]
  ------------------
 1609|   138M|        parent->inner()[idx] = p;
 1610|   138M|    };
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|   122M|    {
 1716|   122M|        merger.merge_inner(p);
 1717|   122M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11merge_innerIRNS1_11relaxed_posISC_EEEEvOT_:
 1648|   122M|    {
 1649|   122M|        auto from       = p.node();
 1650|   122M|        auto from_size  = p.size();
 1651|   122M|        auto from_count = p.count();
 1652|   122M|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 122M, False: 0]
  ------------------
 1653|   122M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 111M, False: 11.1M]
  |  Branch (1653:21): [True: 108M, False: 2.78M]
  ------------------
 1654|   108M|            add_child(from, from_size);
 1655|   108M|            from->inc();
 1656|   108M|        } else {
 1657|  13.9M|            auto from_offset = count_t{};
 1658|  13.9M|            auto from_data   = from->inner();
 1659|  21.8M|            do {
 1660|  21.8M|                if (!to_) {
  ------------------
  |  Branch (1660:21): [True: 10.6M, False: 11.1M]
  ------------------
 1661|  10.6M|                    to_        = node_t::make_inner_r_n(*curr_);
 1662|  10.6M|                    to_offset_ = 0;
 1663|  10.6M|                    to_size_   = 0;
 1664|  10.6M|                }
 1665|  21.8M|                auto data = to_->inner();
 1666|  21.8M|                auto to_copy =
 1667|  21.8M|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1668|  21.8M|                std::copy(from_data + from_offset,
 1669|  21.8M|                          from_data + from_offset + to_copy,
 1670|  21.8M|                          data + to_offset_);
 1671|  21.8M|                node_t::inc_nodes(from_data + from_offset, to_copy);
 1672|  21.8M|                auto sizes = to_->relaxed()->d.sizes;
 1673|  21.8M|                p.copy_sizes(
 1674|  21.8M|                    from_offset, to_copy, to_size_, sizes + to_offset_);
 1675|  21.8M|                to_offset_ += to_copy;
 1676|  21.8M|                from_offset += to_copy;
 1677|  21.8M|                to_size_ = sizes[to_offset_ - 1];
 1678|  21.8M|                assert(to_size_);
  ------------------
  |  Branch (1678:17): [True: 21.8M, False: 0]
  ------------------
 1679|  21.8M|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1679:21): [True: 10.6M, False: 11.1M]
  ------------------
 1680|  10.6M|                    to_->relaxed()->d.count = to_offset_;
 1681|  10.6M|                    add_child(to_, to_size_);
 1682|  10.6M|                    to_ = nullptr;
 1683|  10.6M|                }
 1684|  21.8M|            } while (from_offset != from_count);
  ------------------
  |  Branch (1684:22): [True: 7.83M, False: 13.9M]
  ------------------
 1685|  13.9M|        }
 1686|   122M|    }
_ZNK5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE6finishEv:
 1689|  14.4M|    {
 1690|  14.4M|        assert(!to_);
  ------------------
  |  Branch (1690:9): [True: 14.4M, False: 0]
  ------------------
 1691|  14.4M|        return result_;
 1692|  14.4M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8each_subINS1_11dec_visitorEJEEEvT_DpOT0_:
 1512|  14.4M|    {
 1513|  14.4M|        if (shift_ == BL) {
  ------------------
  |  Branch (1513:13): [True: 1.16M, False: 13.2M]
  ------------------
 1514|  1.16M|            auto s = size_t{};
 1515|  4.65M|            for (auto i = count_t{0}; i < count_; ++i) {
  ------------------
  |  Branch (1515:39): [True: 3.48M, False: 1.16M]
  ------------------
 1516|  3.48M|                make_leaf_sub_pos(nodes_[i], sizes_[i] - s).visit(v, args...);
 1517|  3.48M|                s = sizes_[i];
 1518|  3.48M|            }
 1519|  13.2M|        } else {
 1520|  35.9M|            for (auto i = count_t{0}; i < count_; ++i)
  ------------------
  |  Branch (1520:39): [True: 22.6M, False: 13.2M]
  ------------------
 1521|  22.6M|                make_relaxed_pos(nodes_[i], shift_ - B, nodes_[i]->relaxed())
 1522|  22.6M|                    .visit(v, args...);
 1523|  13.2M|        }
 1524|  14.4M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEC2EjPSC_mSE_mSE_m:
 1503|  1.15M|        : shift_{s}
 1504|  1.15M|        , count_{3}
 1505|  1.15M|        , nodes_{n0, n1, n2}
 1506|  1.15M|        , sizes_{s0, s0 + s1, s0 + s1 + s2}
 1507|  1.15M|    {
 1508|  1.15M|    }
_ZN5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEC2EjPSC_mSE_m:
 1489|  7.25k|        : shift_{s}
 1490|  7.25k|        , count_{2}
 1491|  7.25k|        , nodes_{n0, n1}
 1492|  7.25k|        , sizes_{s0, s0 + s1}
 1493|  7.25k|    {
 1494|  7.25k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  17.2k|    {
 1918|  17.2k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  17.2k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|    300|    {
 1918|    300|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|    300|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  2.55k|{
 1873|  2.55k|    auto lshift = lpos.shift();
 1874|  2.55k|    auto rshift = rpos.shift();
 1875|  2.55k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 2.55k]
  ------------------
 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|  2.55k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 658, False: 1.89k]
  ------------------
 1879|    658|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    658|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  1.89k|    } else {
 1882|  1.89k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 1.89k, False: 0]
  ------------------
 1883|  1.89k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 1.89k]
  |  Branch (1883:9): [True: 1.89k, False: 0]
  |  Branch (1883:9): [True: 1.89k, False: 0]
  ------------------
 1884|  1.89k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  1.89k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  1.89k|    }
 1887|  2.55k|}
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|    906|    {
 1918|    906|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|    906|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|    906|{
 1873|    906|    auto lshift = lpos.shift();
 1874|    906|    auto rshift = rpos.shift();
 1875|    906|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 906]
  ------------------
 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|    906|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 248, False: 658]
  ------------------
 1879|    248|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    248|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|    658|    } else {
 1882|    658|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 658, False: 0]
  ------------------
 1883|    658|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 658]
  |  Branch (1883:9): [True: 658, False: 0]
  |  Branch (1883:9): [True: 658, False: 0]
  ------------------
 1884|    658|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|    658|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|    658|    }
 1887|    906|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|    661|{
 1824|    661|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|    661|    plan.fill(lpos, cpos, rpos);
 1826|    661|    plan.shuffle(cpos.shift());
 1827|    661|    IMMER_TRY {
  ------------------
  |  |   49|    661|#define IMMER_TRY try
  ------------------
 1828|    661|        return plan.merge(lpos, cpos, rpos);
 1829|    661|    }
 1830|    661|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|    661|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISH_EEEEvOT_OT0_OT1_:
 1752|    661|    {
 1753|    661|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 661, False: 0]
  ------------------
 1754|    661|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 661, False: 0]
  ------------------
 1755|    661|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|    661|        lpos.each_left_sub(visitor_t{}, *this);
 1757|    661|        cpos.each_sub(visitor_t{}, *this);
 1758|    661|        rpos.each_right_sub(visitor_t{}, *this);
 1759|    661|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  6.31M|    {
 1734|  6.31M|        auto count = p.count();
 1735|  6.31M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 6.31M, False: 0]
  ------------------
 1736|  6.31M|        plan.counts[plan.n++] = count;
 1737|  6.31M|        plan.total += count;
 1738|  6.31M|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|   611k|    {
 1734|   611k|        auto count = p.count();
 1735|   611k|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 611k, False: 0]
  ------------------
 1736|   611k|        plan.counts[plan.n++] = count;
 1737|   611k|        plan.total += count;
 1738|   611k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|    661|    {
 1803|    661|        using node_t    = node_type<CPos>;
 1804|    661|        using merger_t  = concat_merger<node_t>;
 1805|    661|        using visitor_t = concat_merger_visitor;
 1806|    661|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|    661|        IMMER_TRY {
  ------------------
  |  |   49|    661|#define IMMER_TRY try
  ------------------
 1808|    661|            lpos.each_left_sub(visitor_t{}, merger);
 1809|    661|            cpos.each_sub(visitor_t{}, merger);
 1810|    661|            rpos.each_right_sub(visitor_t{}, merger);
 1811|    661|            cpos.each_sub(dec_visitor{});
 1812|    661|            return merger.finish();
 1813|    661|        }
 1814|    661|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|    661|    }
_ZN5immer6detail4rbts21concat_merger_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1721|  6.31M|    {
 1722|  6.31M|        merger.merge_leaf(p);
 1723|  6.31M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10merge_leafIRNS1_13full_leaf_posISC_EEEEvOT_:
 1614|  6.31M|    {
 1615|  6.31M|        auto from       = p.node();
 1616|  6.31M|        auto from_size  = p.size();
 1617|  6.31M|        auto from_count = p.count();
 1618|  6.31M|        assert(from_size);
  ------------------
  |  Branch (1618:9): [True: 6.31M, False: 0]
  ------------------
 1619|  6.31M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1619:13): [True: 6.31M, False: 0]
  |  Branch (1619:21): [True: 6.31M, False: 0]
  ------------------
 1620|  6.31M|            add_child(from, from_size);
 1621|  6.31M|            from->inc();
 1622|  6.31M|        } 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|  6.31M|    }
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|   611k|    {
 1716|   611k|        merger.merge_inner(p);
 1717|   611k|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11merge_innerIRNS1_8full_posISC_EEEEvOT_:
 1648|   611k|    {
 1649|   611k|        auto from       = p.node();
 1650|   611k|        auto from_size  = p.size();
 1651|   611k|        auto from_count = p.count();
 1652|   611k|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 611k, False: 0]
  ------------------
 1653|   611k|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 611k, False: 0]
  |  Branch (1653:21): [True: 611k, False: 0]
  ------------------
 1654|   611k|            add_child(from, from_size);
 1655|   611k|            from->inc();
 1656|   611k|        } 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|   611k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|    658|    {
 1945|    658|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|    658|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|  2.55k|    {
 1925|  2.55k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|  2.55k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_13full_leaf_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|  2.55k|{
 1839|  2.55k|    static_assert(Node::bits >= 2, "");
 1840|  2.55k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 2.55k, False: 0]
  ------------------
 1841|  2.55k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 2.55k, False: 0]
  ------------------
 1842|  2.55k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 2.55k, False: 0]
  ------------------
 1843|  2.55k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 0, False: 2.55k]
  ------------------
 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|  2.55k|    else
 1854|  2.55k|        return {
 1855|  2.55k|            Node::bits_leaf,
 1856|  2.55k|            lpos.node()->inc(),
 1857|  2.55k|            lpos.count(),
 1858|  2.55k|            rpos.node()->inc(),
 1859|  2.55k|            rpos.count(),
 1860|  2.55k|        };
 1861|  2.55k|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|    658|{
 1824|    658|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|    658|    plan.fill(lpos, cpos, rpos);
 1826|    658|    plan.shuffle(cpos.shift());
 1827|    658|    IMMER_TRY {
  ------------------
  |  |   49|    658|#define IMMER_TRY try
  ------------------
 1828|    658|        return plan.merge(lpos, cpos, rpos);
 1829|    658|    }
 1830|    658|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|    658|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|    658|    {
 1753|    658|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 658, False: 0]
  ------------------
 1754|    658|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 658, False: 0]
  ------------------
 1755|    658|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|    658|        lpos.each_left_sub(visitor_t{}, *this);
 1757|    658|        cpos.each_sub(visitor_t{}, *this);
 1758|    658|        rpos.each_right_sub(visitor_t{}, *this);
 1759|    658|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|    658|    {
 1803|    658|        using node_t    = node_type<CPos>;
 1804|    658|        using merger_t  = concat_merger<node_t>;
 1805|    658|        using visitor_t = concat_merger_visitor;
 1806|    658|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|    658|        IMMER_TRY {
  ------------------
  |  |   49|    658|#define IMMER_TRY try
  ------------------
 1808|    658|            lpos.each_left_sub(visitor_t{}, merger);
 1809|    658|            cpos.each_sub(visitor_t{}, merger);
 1810|    658|            rpos.each_right_sub(visitor_t{}, merger);
 1811|    658|            cpos.each_sub(dec_visitor{});
 1812|    658|            return merger.finish();
 1813|    658|        }
 1814|    658|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|    658|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|  1.74k|{
 1824|  1.74k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  1.74k|    plan.fill(lpos, cpos, rpos);
 1826|  1.74k|    plan.shuffle(cpos.shift());
 1827|  1.74k|    IMMER_TRY {
  ------------------
  |  |   49|  1.74k|#define IMMER_TRY try
  ------------------
 1828|  1.74k|        return plan.merge(lpos, cpos, rpos);
 1829|  1.74k|    }
 1830|  1.74k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  1.74k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISH_EEEEvOT_OT0_OT1_:
 1752|  1.74k|    {
 1753|  1.74k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 1.74k, False: 0]
  ------------------
 1754|  1.74k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 1.74k, False: 0]
  ------------------
 1755|  1.74k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  1.74k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  1.74k|        cpos.each_sub(visitor_t{}, *this);
 1758|  1.74k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  1.74k|    }
_ZN5immer6detail4rbts34concat_rebalance_plan_fill_visitor10visit_nodeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_rebalance_planILj3ELj3EEEEEvOT_RT0_:
 1733|  4.46M|    {
 1734|  4.46M|        auto count = p.count();
 1735|  4.46M|        assert(plan.n < Plan::max_children);
  ------------------
  |  Branch (1735:9): [True: 4.46M, False: 0]
  ------------------
 1736|  4.46M|        plan.counts[plan.n++] = count;
 1737|  4.46M|        plan.total += count;
 1738|  4.46M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  1.74k|    {
 1803|  1.74k|        using node_t    = node_type<CPos>;
 1804|  1.74k|        using merger_t  = concat_merger<node_t>;
 1805|  1.74k|        using visitor_t = concat_merger_visitor;
 1806|  1.74k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  1.74k|        IMMER_TRY {
  ------------------
  |  |   49|  1.74k|#define IMMER_TRY try
  ------------------
 1808|  1.74k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  1.74k|            cpos.each_sub(visitor_t{}, merger);
 1810|  1.74k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  1.74k|            cpos.each_sub(dec_visitor{});
 1812|  1.74k|            return merger.finish();
 1813|  1.74k|        }
 1814|  1.74k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  1.74k|    }
_ZN5immer6detail4rbts21concat_merger_visitor11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_13concat_mergerISE_EEEEvOT_RT0_:
 1715|  4.46M|    {
 1716|  4.46M|        merger.merge_inner(p);
 1717|  4.46M|    }
_ZN5immer6detail4rbts13concat_mergerINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11merge_innerIRNS1_15regular_sub_posISC_EEEEvOT_:
 1648|  4.46M|    {
 1649|  4.46M|        auto from       = p.node();
 1650|  4.46M|        auto from_size  = p.size();
 1651|  4.46M|        auto from_count = p.count();
 1652|  4.46M|        assert(from_size);
  ------------------
  |  Branch (1652:9): [True: 4.46M, False: 0]
  ------------------
 1653|  4.46M|        if (!to_ && *curr_ == from_count) {
  ------------------
  |  Branch (1653:13): [True: 2.47M, False: 1.98M]
  |  Branch (1653:21): [True: 2.47M, False: 0]
  ------------------
 1654|  2.47M|            add_child(from, from_size);
 1655|  2.47M|            from->inc();
 1656|  2.47M|        } else {
 1657|  1.98M|            auto from_offset = count_t{};
 1658|  1.98M|            auto from_data   = from->inner();
 1659|  3.96M|            do {
 1660|  3.96M|                if (!to_) {
  ------------------
  |  Branch (1660:21): [True: 1.98M, False: 1.98M]
  ------------------
 1661|  1.98M|                    to_        = node_t::make_inner_r_n(*curr_);
 1662|  1.98M|                    to_offset_ = 0;
 1663|  1.98M|                    to_size_   = 0;
 1664|  1.98M|                }
 1665|  3.96M|                auto data = to_->inner();
 1666|  3.96M|                auto to_copy =
 1667|  3.96M|                    std::min(from_count - from_offset, *curr_ - to_offset_);
 1668|  3.96M|                std::copy(from_data + from_offset,
 1669|  3.96M|                          from_data + from_offset + to_copy,
 1670|  3.96M|                          data + to_offset_);
 1671|  3.96M|                node_t::inc_nodes(from_data + from_offset, to_copy);
 1672|  3.96M|                auto sizes = to_->relaxed()->d.sizes;
 1673|  3.96M|                p.copy_sizes(
 1674|  3.96M|                    from_offset, to_copy, to_size_, sizes + to_offset_);
 1675|  3.96M|                to_offset_ += to_copy;
 1676|  3.96M|                from_offset += to_copy;
 1677|  3.96M|                to_size_ = sizes[to_offset_ - 1];
 1678|  3.96M|                assert(to_size_);
  ------------------
  |  Branch (1678:17): [True: 3.96M, False: 0]
  ------------------
 1679|  3.96M|                if (*curr_ == to_offset_) {
  ------------------
  |  Branch (1679:21): [True: 1.98M, False: 1.98M]
  ------------------
 1680|  1.98M|                    to_->relaxed()->d.count = to_offset_;
 1681|  1.98M|                    add_child(to_, to_size_);
 1682|  1.98M|                    to_ = nullptr;
 1683|  1.98M|                }
 1684|  3.96M|            } while (from_offset != from_count);
  ------------------
  |  Branch (1684:22): [True: 1.98M, False: 1.98M]
  ------------------
 1685|  1.98M|        }
 1686|  4.46M|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  1.89k|    {
 1945|  1.89k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  1.89k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EESH_RNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|  4.70k|    {
 1925|  4.70k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|  4.70k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|  4.70k|{
 1839|  4.70k|    static_assert(Node::bits >= 2, "");
 1840|  4.70k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 4.70k, False: 0]
  ------------------
 1841|  4.70k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 4.70k, False: 0]
  ------------------
 1842|  4.70k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 4.70k, False: 0]
  ------------------
 1843|  4.70k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 0, False: 4.70k]
  ------------------
 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|  4.70k|    else
 1854|  4.70k|        return {
 1855|  4.70k|            Node::bits_leaf,
 1856|  4.70k|            lpos.node()->inc(),
 1857|  4.70k|            lpos.count(),
 1858|  4.70k|            rpos.node()->inc(),
 1859|  4.70k|            rpos.count(),
 1860|  4.70k|        };
 1861|  4.70k|}
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  1.89k|{
 1824|  1.89k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  1.89k|    plan.fill(lpos, cpos, rpos);
 1826|  1.89k|    plan.shuffle(cpos.shift());
 1827|  1.89k|    IMMER_TRY {
  ------------------
  |  |   49|  1.89k|#define IMMER_TRY try
  ------------------
 1828|  1.89k|        return plan.merge(lpos, cpos, rpos);
 1829|  1.89k|    }
 1830|  1.89k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  1.89k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEEvOT_OT0_OT1_:
 1752|  1.89k|    {
 1753|  1.89k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 1.89k, False: 0]
  ------------------
 1754|  1.89k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 1.89k, False: 0]
  ------------------
 1755|  1.89k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  1.89k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  1.89k|        cpos.each_sub(visitor_t{}, *this);
 1758|  1.89k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  1.89k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  1.89k|    {
 1803|  1.89k|        using node_t    = node_type<CPos>;
 1804|  1.89k|        using merger_t  = concat_merger<node_t>;
 1805|  1.89k|        using visitor_t = concat_merger_visitor;
 1806|  1.89k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  1.89k|        IMMER_TRY {
  ------------------
  |  |   49|  1.89k|#define IMMER_TRY try
  ------------------
 1808|  1.89k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  1.89k|            cpos.each_sub(visitor_t{}, merger);
 1810|  1.89k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  1.89k|            cpos.each_sub(dec_visitor{});
 1812|  1.89k|            return merger.finish();
 1813|  1.89k|        }
 1814|  1.89k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  1.89k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_12null_sub_posERNS1_17concat_center_posISC_EERNS1_11relaxed_posISC_EEEENSE_IT_EEOT0_OT1_OT2_:
 1823|  67.3k|{
 1824|  67.3k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  67.3k|    plan.fill(lpos, cpos, rpos);
 1826|  67.3k|    plan.shuffle(cpos.shift());
 1827|  67.3k|    IMMER_TRY {
  ------------------
  |  |   49|  67.3k|#define IMMER_TRY try
  ------------------
 1828|  67.3k|        return plan.merge(lpos, cpos, rpos);
 1829|  67.3k|    }
 1830|  67.3k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  67.3k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISH_EEEEvOT_OT0_OT1_:
 1752|  67.3k|    {
 1753|  67.3k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 67.3k, False: 0]
  ------------------
 1754|  67.3k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 67.3k, False: 0]
  ------------------
 1755|  67.3k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  67.3k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  67.3k|        cpos.each_sub(visitor_t{}, *this);
 1758|  67.3k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  67.3k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_12null_sub_posERNS1_17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISH_EEEENS7_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  67.3k|    {
 1803|  67.3k|        using node_t    = node_type<CPos>;
 1804|  67.3k|        using merger_t  = concat_merger<node_t>;
 1805|  67.3k|        using visitor_t = concat_merger_visitor;
 1806|  67.3k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  67.3k|        IMMER_TRY {
  ------------------
  |  |   49|  67.3k|#define IMMER_TRY try
  ------------------
 1808|  67.3k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  67.3k|            cpos.each_sub(visitor_t{}, merger);
 1810|  67.3k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  67.3k|            cpos.each_sub(dec_visitor{});
 1812|  67.3k|            return merger.finish();
 1813|  67.3k|        }
 1814|  67.3k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  67.3k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  4.70k|    {
 1945|  4.70k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  4.70k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_25singleton_regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_11relaxed_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  4.70k|{
 1824|  4.70k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  4.70k|    plan.fill(lpos, cpos, rpos);
 1826|  4.70k|    plan.shuffle(cpos.shift());
 1827|  4.70k|    IMMER_TRY {
  ------------------
  |  |   49|  4.70k|#define IMMER_TRY try
  ------------------
 1828|  4.70k|        return plan.merge(lpos, cpos, rpos);
 1829|  4.70k|    }
 1830|  4.70k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  4.70k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEEvOT_OT0_OT1_:
 1752|  4.70k|    {
 1753|  4.70k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 4.70k, False: 0]
  ------------------
 1754|  4.70k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 4.70k, False: 0]
  ------------------
 1755|  4.70k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  4.70k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  4.70k|        cpos.each_sub(visitor_t{}, *this);
 1758|  4.70k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  4.70k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_11relaxed_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  4.70k|    {
 1803|  4.70k|        using node_t    = node_type<CPos>;
 1804|  4.70k|        using merger_t  = concat_merger<node_t>;
 1805|  4.70k|        using visitor_t = concat_merger_visitor;
 1806|  4.70k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  4.70k|        IMMER_TRY {
  ------------------
  |  |   49|  4.70k|#define IMMER_TRY try
  ------------------
 1808|  4.70k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  4.70k|            cpos.each_sub(visitor_t{}, merger);
 1810|  4.70k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  4.70k|            cpos.each_sub(dec_visitor{});
 1812|  4.70k|            return merger.finish();
 1813|  4.70k|        }
 1814|  4.70k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  4.70k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EERNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  2.25k|    {
 1959|  2.25k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  2.25k|    }
_ZNO5immer6detail4rbts17concat_center_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7realizeEv:
 1527|  1.16M|    {
 1528|  1.16M|        if (count_ > 1) {
  ------------------
  |  Branch (1528:13): [True: 48.6k, False: 1.11M]
  ------------------
 1529|  48.6k|            IMMER_TRY {
  ------------------
  |  |   49|  48.6k|#define IMMER_TRY try
  ------------------
 1530|  48.6k|                auto result = node_t::make_inner_r_n(count_);
 1531|  48.6k|                auto r      = result->relaxed();
 1532|  48.6k|                r->d.count  = count_;
 1533|  48.6k|                std::copy(nodes_, nodes_ + count_, result->inner());
 1534|  48.6k|                std::copy(sizes_, sizes_ + count_, r->d.sizes);
 1535|  48.6k|                return {result, shift_, r};
 1536|  48.6k|            }
 1537|  48.6k|            IMMER_CATCH (...) {
 1538|      0|                each_sub(dec_visitor{});
 1539|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1540|      0|            }
 1541|  1.11M|        } else {
 1542|  1.11M|            assert(shift_ >= B + BL);
  ------------------
  |  Branch (1542:13): [True: 1.11M, False: 0]
  ------------------
 1543|  1.11M|            return {nodes_[0], shift_ - B, nodes_[0]->relaxed()};
 1544|  1.11M|        }
 1545|  1.16M|    }
_ZN5immer6detail4rbts12concat_treesINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jmSG_jSG_jm:
 1986|  1.15M|{
 1987|  1.15M|    return visit_maybe_relaxed_sub(lroot,
 1988|  1.15M|                                   lshift,
 1989|  1.15M|                                   lsize,
 1990|  1.15M|                                   concat_trees_left_visitor<Node>{},
 1991|  1.15M|                                   make_leaf_pos(ltail, ltcount),
 1992|  1.15M|                                   rroot,
 1993|  1.15M|                                   rshift,
 1994|  1.15M|                                   rsize)
 1995|  1.15M|        .realize();
 1996|  1.15M|}
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EENS1_8leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  1.14M|    {
 1972|  1.14M|        return visit_maybe_relaxed_sub(
 1973|  1.14M|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  1.14M|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  1.13M|    {
 1959|  1.13M|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  1.13M|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  12.7M|{
 1873|  12.7M|    auto lshift = lpos.shift();
 1874|  12.7M|    auto rshift = rpos.shift();
 1875|  12.7M|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 3.58M, False: 9.20M]
  ------------------
 1876|  3.58M|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  3.58M|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  9.20M|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 41.9k, False: 9.16M]
  ------------------
 1879|  41.9k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|  41.9k|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  9.16M|    } else {
 1882|  9.16M|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 9.16M, False: 0]
  ------------------
 1883|  9.16M|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 9.16M]
  |  Branch (1883:9): [True: 9.16M, False: 0]
  |  Branch (1883:9): [True: 9.16M, False: 0]
  ------------------
 1884|  9.16M|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  9.16M|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  9.16M|    }
 1887|  12.7M|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  3.57M|    {
 1898|  3.57M|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  3.57M|    }
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  4.87k|    {
 1898|  4.87k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  4.87k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_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: 2.51k, False: 1.17M]
  ------------------
 1876|  2.51k|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  2.51k|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  1.17M|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 7.76k, False: 1.16M]
  ------------------
 1879|  7.76k|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|  7.76k|        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_policyELb1ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EENS1_12null_sub_posEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  3.39k|{
 1824|  3.39k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  3.39k|    plan.fill(lpos, cpos, rpos);
 1826|  3.39k|    plan.shuffle(cpos.shift());
 1827|  3.39k|    IMMER_TRY {
  ------------------
  |  |   49|  3.39k|#define IMMER_TRY try
  ------------------
 1828|  3.39k|        return plan.merge(lpos, cpos, rpos);
 1829|  3.39k|    }
 1830|  3.39k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  3.39k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEEvOT_OT0_OT1_:
 1752|  3.39k|    {
 1753|  3.39k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 3.39k, False: 0]
  ------------------
 1754|  3.39k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 3.39k, False: 0]
  ------------------
 1755|  3.39k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  3.39k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  3.39k|        cpos.each_sub(visitor_t{}, *this);
 1758|  3.39k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  3.39k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  3.39k|    {
 1803|  3.39k|        using node_t    = node_type<CPos>;
 1804|  3.39k|        using merger_t  = concat_merger<node_t>;
 1805|  3.39k|        using visitor_t = concat_merger_visitor;
 1806|  3.39k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  3.39k|        IMMER_TRY {
  ------------------
  |  |   49|  3.39k|#define IMMER_TRY try
  ------------------
 1808|  3.39k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  3.39k|            cpos.each_sub(visitor_t{}, merger);
 1810|  3.39k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  3.39k|            cpos.each_sub(dec_visitor{});
 1812|  3.39k|            return merger.finish();
 1813|  3.39k|        }
 1814|  3.39k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  3.39k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_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_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|   421k|    {
 1918|   421k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|   421k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|   432k|{
 1873|   432k|    auto lshift = lpos.shift();
 1874|   432k|    auto rshift = rpos.shift();
 1875|   432k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 881, False: 431k]
  ------------------
 1876|    881|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|    881|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|   431k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 486, False: 431k]
  ------------------
 1879|    486|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    486|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|   431k|    } else {
 1882|   431k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 431k, False: 0]
  ------------------
 1883|   431k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 431k]
  |  Branch (1883:9): [True: 431k, False: 0]
  |  Branch (1883:9): [True: 431k, False: 0]
  ------------------
 1884|   431k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|   431k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|   431k|    }
 1887|   432k|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  1.28k|    {
 1898|  1.28k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  1.28k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  20.4k|    {
 1918|  20.4k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  20.4k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  20.4k|{
 1873|  20.4k|    auto lshift = lpos.shift();
 1874|  20.4k|    auto rshift = rpos.shift();
 1875|  20.4k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 20.4k]
  ------------------
 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|  20.4k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 217, False: 20.2k]
  ------------------
 1879|    217|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    217|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  20.2k|    } else {
 1882|  20.2k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 20.2k, False: 0]
  ------------------
 1883|  20.2k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 20.2k]
  |  Branch (1883:9): [True: 20.2k, False: 0]
  |  Branch (1883:9): [True: 20.2k, False: 0]
  ------------------
 1884|  20.2k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  20.2k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  20.2k|    }
 1887|  20.4k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|  16.0k|    {
 1945|  16.0k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|  16.0k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|   439k|    {
 1925|   439k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|   439k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_13full_leaf_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|   439k|{
 1839|   439k|    static_assert(Node::bits >= 2, "");
 1840|   439k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 439k, False: 0]
  ------------------
 1841|   439k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 439k, False: 0]
  ------------------
 1842|   439k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 439k, False: 0]
  ------------------
 1843|   439k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 439k, False: 0]
  ------------------
 1844|   439k|        return {
 1845|   439k|            Node::bits_leaf,
 1846|   439k|            lpos.node()->inc(),
 1847|   439k|            lpos.count(),
 1848|   439k|            tpos.node()->inc(),
 1849|   439k|            tpos.count(),
 1850|   439k|            rpos.node()->inc(),
 1851|   439k|            rpos.count(),
 1852|   439k|        };
 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|   439k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  5.27k|    {
 1938|  5.27k|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  5.27k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  20.2k|{
 1824|  20.2k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  20.2k|    plan.fill(lpos, cpos, rpos);
 1826|  20.2k|    plan.shuffle(cpos.shift());
 1827|  20.2k|    IMMER_TRY {
  ------------------
  |  |   49|  20.2k|#define IMMER_TRY try
  ------------------
 1828|  20.2k|        return plan.merge(lpos, cpos, rpos);
 1829|  20.2k|    }
 1830|  20.2k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  20.2k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|  20.2k|    {
 1753|  20.2k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 20.2k, False: 0]
  ------------------
 1754|  20.2k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 20.2k, False: 0]
  ------------------
 1755|  20.2k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  20.2k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  20.2k|        cpos.each_sub(visitor_t{}, *this);
 1758|  20.2k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  20.2k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  20.2k|    {
 1803|  20.2k|        using node_t    = node_type<CPos>;
 1804|  20.2k|        using merger_t  = concat_merger<node_t>;
 1805|  20.2k|        using visitor_t = concat_merger_visitor;
 1806|  20.2k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  20.2k|        IMMER_TRY {
  ------------------
  |  |   49|  20.2k|#define IMMER_TRY try
  ------------------
 1808|  20.2k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  20.2k|            cpos.each_sub(visitor_t{}, merger);
 1810|  20.2k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  20.2k|            cpos.each_sub(dec_visitor{});
 1812|  20.2k|            return merger.finish();
 1813|  20.2k|        }
 1814|  20.2k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  20.2k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|   423k|    {
 1945|   423k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|   423k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1924|   717k|    {
 1925|   717k|        return concat_leafs<Node>(lpos, tpos, rpos);
 1926|   717k|    }
_ZN5immer6detail4rbts12concat_leafsINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EESF_EENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1838|   717k|{
 1839|   717k|    static_assert(Node::bits >= 2, "");
 1840|   717k|    assert(lpos.shift() == tpos.shift());
  ------------------
  |  Branch (1840:5): [True: 717k, False: 0]
  ------------------
 1841|   717k|    assert(lpos.shift() == rpos.shift());
  ------------------
  |  Branch (1841:5): [True: 717k, False: 0]
  ------------------
 1842|   717k|    assert(lpos.shift() == 0);
  ------------------
  |  Branch (1842:5): [True: 717k, False: 0]
  ------------------
 1843|   717k|    if (tpos.count() > 0)
  ------------------
  |  Branch (1843:9): [True: 717k, False: 0]
  ------------------
 1844|   717k|        return {
 1845|   717k|            Node::bits_leaf,
 1846|   717k|            lpos.node()->inc(),
 1847|   717k|            lpos.count(),
 1848|   717k|            tpos.node()->inc(),
 1849|   717k|            tpos.count(),
 1850|   717k|            rpos.node()->inc(),
 1851|   717k|            rpos.count(),
 1852|   717k|        };
 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|   717k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  14.4k|    {
 1938|  14.4k|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  14.4k|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_15regular_sub_posISC_EERNS1_17concat_center_posISC_EESF_EENSG_IT_EEOT0_OT1_OT2_:
 1823|   431k|{
 1824|   431k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|   431k|    plan.fill(lpos, cpos, rpos);
 1826|   431k|    plan.shuffle(cpos.shift());
 1827|   431k|    IMMER_TRY {
  ------------------
  |  |   49|   431k|#define IMMER_TRY try
  ------------------
 1828|   431k|        return plan.merge(lpos, cpos, rpos);
 1829|   431k|    }
 1830|   431k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|   431k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EEvOT_OT0_OT1_:
 1752|   431k|    {
 1753|   431k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 431k, False: 0]
  ------------------
 1754|   431k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 431k, False: 0]
  ------------------
 1755|   431k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|   431k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|   431k|        cpos.each_sub(visitor_t{}, *this);
 1758|   431k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|   431k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSN_OT1_:
 1802|   431k|    {
 1803|   431k|        using node_t    = node_type<CPos>;
 1804|   431k|        using merger_t  = concat_merger<node_t>;
 1805|   431k|        using visitor_t = concat_merger_visitor;
 1806|   431k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|   431k|        IMMER_TRY {
  ------------------
  |  |   49|   431k|#define IMMER_TRY try
  ------------------
 1808|   431k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|   431k|            cpos.each_sub(visitor_t{}, merger);
 1810|   431k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|   431k|            cpos.each_sub(dec_visitor{});
 1812|   431k|            return merger.finish();
 1813|   431k|        }
 1814|   431k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|   431k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1944|   717k|    {
 1945|   717k|        return rpos.first_sub_leaf(concat_right_visitor<Node>{}, lpos, tpos);
 1946|   717k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  1.57M|    {
 1938|  1.57M|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  1.57M|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_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_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EENS1_12null_sub_posEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  3.59M|{
 1824|  3.59M|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  3.59M|    plan.fill(lpos, cpos, rpos);
 1826|  3.59M|    plan.shuffle(cpos.shift());
 1827|  3.59M|    IMMER_TRY {
  ------------------
  |  |   49|  3.59M|#define IMMER_TRY try
  ------------------
 1828|  3.59M|        return plan.merge(lpos, cpos, rpos);
 1829|  3.59M|    }
 1830|  3.59M|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  3.59M|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEEvOT_OT0_OT1_:
 1752|  3.59M|    {
 1753|  3.59M|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 3.59M, False: 0]
  ------------------
 1754|  3.59M|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 3.59M, False: 0]
  ------------------
 1755|  3.59M|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  3.59M|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  3.59M|        cpos.each_sub(visitor_t{}, *this);
 1758|  3.59M|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  3.59M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_12null_sub_posEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSP_OT1_:
 1802|  3.59M|    {
 1803|  3.59M|        using node_t    = node_type<CPos>;
 1804|  3.59M|        using merger_t  = concat_merger<node_t>;
 1805|  3.59M|        using visitor_t = concat_merger_visitor;
 1806|  3.59M|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  3.59M|        IMMER_TRY {
  ------------------
  |  |   49|  3.59M|#define IMMER_TRY try
  ------------------
 1808|  3.59M|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  3.59M|            cpos.each_sub(visitor_t{}, merger);
 1810|  3.59M|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  3.59M|            cpos.each_sub(dec_visitor{});
 1812|  3.59M|            return merger.finish();
 1813|  3.59M|        }
 1814|  3.59M|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  3.59M|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  8.07M|    {
 1918|  8.07M|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  8.07M|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_15regular_sub_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|    768|    {
 1918|    768|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|    768|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  18.9k|{
 1873|  18.9k|    auto lshift = lpos.shift();
 1874|  18.9k|    auto rshift = rpos.shift();
 1875|  18.9k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 11.0k, False: 7.89k]
  ------------------
 1876|  11.0k|        auto cpos = lpos.last_sub(concat_left_visitor<Node>{}, tpos, rpos);
 1877|  11.0k|        return concat_rebalance<Node>(lpos, cpos, null_sub_pos{});
 1878|  11.0k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 596, False: 7.29k]
  ------------------
 1879|    596|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    596|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  7.29k|    } else {
 1882|  7.29k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 7.29k, False: 0]
  ------------------
 1883|  7.29k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 7.29k]
  |  Branch (1883:9): [True: 7.29k, False: 0]
  |  Branch (1883:9): [True: 7.29k, False: 0]
  ------------------
 1884|  7.29k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  7.29k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  7.29k|    }
 1887|  18.9k|}
_ZN5immer6detail4rbts19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1897|  10.6k|    {
 1898|  10.6k|        return concat_inners<Node>(lpos, tpos, rpos);
 1899|  10.6k|    }
_ZN5immer6detail4rbts20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_8full_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1917|  1.50k|    {
 1918|  1.50k|        return concat_inners<Node>(lpos, tpos, rpos);
 1919|  1.50k|    }
_ZN5immer6detail4rbts13concat_innersINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posIT_EEOT0_OT1_OT2_:
 1872|  1.50k|{
 1873|  1.50k|    auto lshift = lpos.shift();
 1874|  1.50k|    auto rshift = rpos.shift();
 1875|  1.50k|    if (lshift > rshift) {
  ------------------
  |  Branch (1875:9): [True: 0, False: 1.50k]
  ------------------
 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|  1.50k|    } else if (lshift < rshift) {
  ------------------
  |  Branch (1878:16): [True: 196, False: 1.31k]
  ------------------
 1879|    196|        auto cpos = rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1880|    196|        return concat_rebalance<Node>(null_sub_pos{}, cpos, rpos);
 1881|  1.31k|    } else {
 1882|  1.31k|        assert(lshift == rshift);
  ------------------
  |  Branch (1882:9): [True: 1.31k, False: 0]
  ------------------
 1883|  1.31k|        assert(Node::bits_leaf == 0u || lshift > 0);
  ------------------
  |  Branch (1883:9): [Folded, False: 1.31k]
  |  Branch (1883:9): [True: 1.31k, False: 0]
  |  Branch (1883:9): [True: 1.31k, False: 0]
  ------------------
 1884|  1.31k|        auto cpos = lpos.last_sub(concat_both_visitor<Node>{}, tpos, rpos);
 1885|  1.31k|        return concat_rebalance<Node>(lpos, cpos, rpos);
 1886|  1.31k|    }
 1887|  1.50k|}
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_8full_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|    252|    {
 1938|    252|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|    252|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EERNS1_8full_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  1.31k|{
 1824|  1.31k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  1.31k|    plan.fill(lpos, cpos, rpos);
 1826|  1.31k|    plan.shuffle(cpos.shift());
 1827|  1.31k|    IMMER_TRY {
  ------------------
  |  |   49|  1.31k|#define IMMER_TRY try
  ------------------
 1828|  1.31k|        return plan.merge(lpos, cpos, rpos);
 1829|  1.31k|    }
 1830|  1.31k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  1.31k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEEvOT_OT0_OT1_:
 1752|  1.31k|    {
 1753|  1.31k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 1.31k, False: 0]
  ------------------
 1754|  1.31k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 1.31k, False: 0]
  ------------------
 1755|  1.31k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  1.31k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  1.31k|        cpos.each_sub(visitor_t{}, *this);
 1758|  1.31k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  1.31k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_8full_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  1.31k|    {
 1803|  1.31k|        using node_t    = node_type<CPos>;
 1804|  1.31k|        using merger_t  = concat_merger<node_t>;
 1805|  1.31k|        using visitor_t = concat_merger_visitor;
 1806|  1.31k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  1.31k|        IMMER_TRY {
  ------------------
  |  |   49|  1.31k|#define IMMER_TRY try
  ------------------
 1808|  1.31k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  1.31k|            cpos.each_sub(visitor_t{}, merger);
 1810|  1.31k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  1.31k|            cpos.each_sub(dec_visitor{});
 1812|  1.31k|            return merger.finish();
 1813|  1.31k|        }
 1814|  1.31k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  1.31k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|    465|    {
 1938|    465|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|    465|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EERNS1_15regular_sub_posISC_EEEENSG_IT_EEOT0_OT1_OT2_:
 1823|  7.29k|{
 1824|  7.29k|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  7.29k|    plan.fill(lpos, cpos, rpos);
 1826|  7.29k|    plan.shuffle(cpos.shift());
 1827|  7.29k|    IMMER_TRY {
  ------------------
  |  |   49|  7.29k|#define IMMER_TRY try
  ------------------
 1828|  7.29k|        return plan.merge(lpos, cpos, rpos);
 1829|  7.29k|    }
 1830|  7.29k|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  7.29k|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEEvOT_OT0_OT1_:
 1752|  7.29k|    {
 1753|  7.29k|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 7.29k, False: 0]
  ------------------
 1754|  7.29k|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 7.29k, False: 0]
  ------------------
 1755|  7.29k|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  7.29k|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  7.29k|        cpos.each_sub(visitor_t{}, *this);
 1758|  7.29k|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  7.29k|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EERNS1_15regular_sub_posISF_EEEENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSQ_OT1_:
 1802|  7.29k|    {
 1803|  7.29k|        using node_t    = node_type<CPos>;
 1804|  7.29k|        using merger_t  = concat_merger<node_t>;
 1805|  7.29k|        using visitor_t = concat_merger_visitor;
 1806|  7.29k|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  7.29k|        IMMER_TRY {
  ------------------
  |  |   49|  7.29k|#define IMMER_TRY try
  ------------------
 1808|  7.29k|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  7.29k|            cpos.each_sub(visitor_t{}, merger);
 1810|  7.29k|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  7.29k|            cpos.each_sub(dec_visitor{});
 1812|  7.29k|            return merger.finish();
 1813|  7.29k|        }
 1814|  7.29k|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  7.29k|    }
_ZN5immer6detail4rbts19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11visit_innerIRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EESH_EENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1937|  8.03M|    {
 1938|  8.03M|        return rpos.first_sub(concat_right_visitor<Node>{}, lpos, tpos);
 1939|  8.03M|    }
_ZN5immer6detail4rbts16concat_rebalanceINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERNS1_11relaxed_posISC_EERNS1_17concat_center_posISC_EESF_EENSG_IT_EEOT0_OT1_OT2_:
 1823|  9.16M|{
 1824|  9.16M|    auto plan = concat_rebalance_plan<Node::bits, Node::bits_leaf>{};
 1825|  9.16M|    plan.fill(lpos, cpos, rpos);
 1826|  9.16M|    plan.shuffle(cpos.shift());
 1827|  9.16M|    IMMER_TRY {
  ------------------
  |  |   49|  9.16M|#define IMMER_TRY try
  ------------------
 1828|  9.16M|        return plan.merge(lpos, cpos, rpos);
 1829|  9.16M|    }
 1830|  9.16M|    IMMER_CATCH (...) {
 1831|      0|        cpos.each_sub(dec_visitor{});
 1832|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1833|      0|    }
 1834|  9.16M|}
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE4fillIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EEvOT_OT0_OT1_:
 1752|  9.16M|    {
 1753|  9.16M|        assert(n == 0u);
  ------------------
  |  Branch (1753:9): [True: 9.16M, False: 0]
  ------------------
 1754|  9.16M|        assert(total == 0u);
  ------------------
  |  Branch (1754:9): [True: 9.16M, False: 0]
  ------------------
 1755|  9.16M|        using visitor_t = concat_rebalance_plan_fill_visitor;
 1756|  9.16M|        lpos.each_left_sub(visitor_t{}, *this);
 1757|  9.16M|        cpos.each_sub(visitor_t{}, *this);
 1758|  9.16M|        rpos.each_right_sub(visitor_t{}, *this);
 1759|  9.16M|    }
_ZN5immer6detail4rbts21concat_rebalance_planILj3ELj3EE5mergeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_17concat_center_posISF_EESH_EENSI_INSt3__15decayIT0_E4type6node_tEEEOT_OSN_OT1_:
 1802|  9.16M|    {
 1803|  9.16M|        using node_t    = node_type<CPos>;
 1804|  9.16M|        using merger_t  = concat_merger<node_t>;
 1805|  9.16M|        using visitor_t = concat_merger_visitor;
 1806|  9.16M|        auto merger     = merger_t{cpos.shift(), counts, n};
 1807|  9.16M|        IMMER_TRY {
  ------------------
  |  |   49|  9.16M|#define IMMER_TRY try
  ------------------
 1808|  9.16M|            lpos.each_left_sub(visitor_t{}, merger);
 1809|  9.16M|            cpos.each_sub(visitor_t{}, merger);
 1810|  9.16M|            rpos.each_right_sub(visitor_t{}, merger);
 1811|  9.16M|            cpos.each_sub(dec_visitor{});
 1812|  9.16M|            return merger.finish();
 1813|  9.16M|        }
 1814|  9.16M|        IMMER_CATCH (...) {
 1815|      0|            merger.abort();
 1816|      0|            IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
 1817|      0|        }
 1818|  9.16M|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EERNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  7.52k|    {
 1959|  7.52k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  7.52k|    }
_ZN5immer6detail4rbts25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EENS1_8leaf_posISC_EEJRPSC_RjRmEEENS1_17concat_center_posISC_EEOT_OT0_DpOT1_:
 1971|  16.5k|    {
 1972|  16.5k|        return visit_maybe_relaxed_sub(
 1973|  16.5k|            args..., concat_trees_right_visitor<Node>{}, lpos, tpos);
 1974|  16.5k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_11relaxed_posISC_EERNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  6.79k|    {
 1959|  6.79k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  6.79k|    }
_ZN5immer6detail4rbts26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_nodeIRNS1_15regular_sub_posISC_EESH_RNS1_8leaf_posISC_EEEENS1_17concat_center_posISC_EEOT_OT0_OT1_:
 1958|  9.72k|    {
 1959|  9.72k|        return concat_inners<Node>(lpos, tpos, rpos);
 1960|  9.72k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_NSA_5applyIS7_E4type4editESI_j:
  680|   219k|    {
  681|   219k|        auto node     = pos.node();
  682|   219k|        auto level    = pos.shift();
  683|   219k|        auto idx      = pos.count() - 1;
  684|   219k|        auto children = pos.size(idx);
  685|   219k|        auto new_idx =
  686|   219k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (686:13): [True: 2.80k, False: 216k]
  |  Branch (686:47): [True: 397, False: 216k]
  ------------------
  687|   219k|        auto new_child = static_cast<node_t*>(nullptr);
  688|   219k|        auto mutate    = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (688:26): [True: 219k, Folded]
  |  Branch (688:38): [True: 216k, False: 2.97k]
  ------------------
  689|       |
  690|   219k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (690:13): [True: 739, False: 218k]
  ------------------
  691|    739|            return nullptr;
  692|   218k|        else if (idx == new_idx) {
  ------------------
  |  Branch (692:18): [True: 216k, False: 2.46k]
  ------------------
  693|   216k|            new_child =
  694|   216k|                mutate ? pos.last_oh_csh(this_t{}, idx, children, e, tail, ts)
  ------------------
  |  Branch (694:17): [True: 213k, False: 2.54k]
  ------------------
  695|   216k|                       : pos.last_oh_csh(
  696|  2.54k|                             this_no_mut_t{}, idx, children, e, tail, ts);
  697|   216k|            if (!new_child) {
  ------------------
  |  Branch (697:17): [True: 1.04k, False: 215k]
  ------------------
  698|  1.04k|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (698:21): [True: 315, False: 726]
  ------------------
  699|    315|                    new_child = node_t::make_path_e(e, level - B, tail);
  700|    726|                else
  701|    726|                    return nullptr;
  702|  1.04k|            }
  703|   216k|        } else
  704|  2.46k|            new_child = node_t::make_path_e(e, level - B, tail);
  705|       |
  706|   218k|        if (mutate) {
  ------------------
  |  Branch (706:13): [True: 215k, False: 2.65k]
  ------------------
  707|   215k|            auto count             = new_idx + 1;
  708|   215k|            auto relaxed           = node->ensure_mutable_relaxed_n(e, new_idx);
  709|   215k|            node->inner()[new_idx] = new_child;
  710|   215k|            relaxed->d.sizes[new_idx] = pos.size() + ts;
  711|   215k|            relaxed->d.count          = count;
  712|   215k|            assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (712:13): [True: 215k, False: 0]
  ------------------
  713|   215k|            return node;
  714|   215k|        } else {
  715|  2.65k|            IMMER_TRY {
  ------------------
  |  |   49|  2.65k|#define IMMER_TRY try
  ------------------
  716|  2.65k|                auto count    = new_idx + 1;
  717|  2.65k|                auto new_node = node_t::copy_inner_r_e(e, pos.node(), new_idx);
  718|  2.65k|                auto relaxed  = new_node->relaxed();
  719|  2.65k|                new_node->inner()[new_idx] = new_child;
  720|  2.65k|                relaxed->d.sizes[new_idx]  = pos.size() + ts;
  721|  2.65k|                relaxed->d.count           = count;
  722|  2.65k|                assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (722:17): [True: 2.65k, False: 0]
  ------------------
  723|  2.65k|                if (Mutating)
  ------------------
  |  Branch (723:21): [True: 2.65k, Folded]
  ------------------
  724|  2.65k|                    pos.visit(dec_visitor{});
  725|  2.65k|                return new_node;
  726|  2.65k|            }
  727|  2.65k|            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|  2.65k|        }
  737|   218k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_NSA_5applyIS7_E4type4editESJ_DpOT0_:
  741|   174k|    {
  742|   174k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 174k, False: 0]
  ------------------
  743|   174k|        auto node    = pos.node();
  744|   174k|        auto idx     = pos.index(pos.size() - 1);
  745|   174k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|   174k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 174k, Folded]
  |  Branch (746:36): [True: 173k, False: 1.05k]
  ------------------
  747|   174k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 173k, False: 1.05k]
  ------------------
  748|   173k|            node->inner()[new_idx] =
  749|   173k|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 171k, False: 2.68k]
  ------------------
  750|       |                               /* otherwise */
  751|   173k|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|   173k|            return node;
  753|   173k|        } else {
  754|  1.05k|            auto new_parent = node_t::make_inner_e(e);
  755|  1.05k|            IMMER_TRY {
  ------------------
  |  |   49|  1.05k|#define IMMER_TRY try
  ------------------
  756|  1.05k|                new_parent->inner()[new_idx] =
  757|  1.05k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 721, False: 332]
  ------------------
  758|  1.05k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  1.05k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  1.05k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  1.05k|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 1.05k, Folded]
  ------------------
  763|  1.05k|                    pos.visit(dec_visitor{});
  764|  1.05k|                return new_parent;
  765|  1.05k|            }
  766|  1.05k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  1.05k|        }
  771|   174k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|  1.14M|    {
  742|  1.14M|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 1.14M, False: 0]
  ------------------
  743|  1.14M|        auto node    = pos.node();
  744|  1.14M|        auto idx     = pos.index(pos.size() - 1);
  745|  1.14M|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|  1.14M|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 1.14M, Folded]
  |  Branch (746:36): [True: 1.13M, False: 1.87k]
  ------------------
  747|  1.14M|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 1.13M, False: 1.87k]
  ------------------
  748|  1.13M|            node->inner()[new_idx] =
  749|  1.13M|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 785k, False: 352k]
  ------------------
  750|       |                               /* otherwise */
  751|  1.13M|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|  1.13M|            return node;
  753|  1.13M|        } else {
  754|  1.87k|            auto new_parent = node_t::make_inner_e(e);
  755|  1.87k|            IMMER_TRY {
  ------------------
  |  |   49|  1.87k|#define IMMER_TRY try
  ------------------
  756|  1.87k|                new_parent->inner()[new_idx] =
  757|  1.87k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 1.18k, False: 687]
  ------------------
  758|  1.87k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  1.87k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  1.87k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  1.87k|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 1.87k, Folded]
  ------------------
  763|  1.87k|                    pos.visit(dec_visitor{});
  764|  1.87k|                return new_parent;
  765|  1.87k|            }
  766|  1.87k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  1.87k|        }
  771|  1.14M|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_11regular_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|  4.30k|    {
  742|  4.30k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 4.30k, False: 0]
  ------------------
  743|  4.30k|        auto node    = pos.node();
  744|  4.30k|        auto idx     = pos.index(pos.size() - 1);
  745|  4.30k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|  4.30k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [Folded, False: 4.30k]
  |  Branch (746:36): [True: 0, False: 0]
  ------------------
  747|  4.30k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 0, False: 4.30k]
  ------------------
  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|  4.30k|        } else {
  754|  4.30k|            auto new_parent = node_t::make_inner_e(e);
  755|  4.30k|            IMMER_TRY {
  ------------------
  |  |   49|  4.30k|#define IMMER_TRY try
  ------------------
  756|  4.30k|                new_parent->inner()[new_idx] =
  757|  4.30k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 1.50k, False: 2.80k]
  ------------------
  758|  4.30k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  4.30k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  4.30k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  4.30k|                if (Mutating)
  ------------------
  |  Branch (762:21): [Folded, False: 4.30k]
  ------------------
  763|      0|                    pos.visit(dec_visitor{});
  764|  4.30k|                return new_parent;
  765|  4.30k|            }
  766|  4.30k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  4.30k|        }
  771|  4.30k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEEPSC_OT_NSA_5applyIS7_E4type4editESI_j:
  680|  7.40k|    {
  681|  7.40k|        auto node     = pos.node();
  682|  7.40k|        auto level    = pos.shift();
  683|  7.40k|        auto idx      = pos.count() - 1;
  684|  7.40k|        auto children = pos.size(idx);
  685|  7.40k|        auto new_idx =
  686|  7.40k|            children == size_t{1} << level || level == BL ? idx + 1 : idx;
  ------------------
  |  Branch (686:13): [True: 871, False: 6.53k]
  |  Branch (686:47): [True: 611, False: 5.92k]
  ------------------
  687|  7.40k|        auto new_child = static_cast<node_t*>(nullptr);
  688|  7.40k|        auto mutate    = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (688:26): [Folded, False: 7.40k]
  |  Branch (688:38): [True: 0, False: 0]
  ------------------
  689|       |
  690|  7.40k|        if (new_idx >= branches<B>)
  ------------------
  |  Branch (690:13): [True: 668, False: 6.73k]
  ------------------
  691|    668|            return nullptr;
  692|  6.73k|        else if (idx == new_idx) {
  ------------------
  |  Branch (692:18): [True: 5.92k, False: 814]
  ------------------
  693|  5.92k|            new_child =
  694|  5.92k|                mutate ? pos.last_oh_csh(this_t{}, idx, children, e, tail, ts)
  ------------------
  |  Branch (694:17): [True: 0, False: 5.92k]
  ------------------
  695|  5.92k|                       : pos.last_oh_csh(
  696|  5.92k|                             this_no_mut_t{}, idx, children, e, tail, ts);
  697|  5.92k|            if (!new_child) {
  ------------------
  |  Branch (697:17): [True: 830, False: 5.09k]
  ------------------
  698|    830|                if (++new_idx < branches<B>)
  ------------------
  |  Branch (698:21): [True: 362, False: 468]
  ------------------
  699|    362|                    new_child = node_t::make_path_e(e, level - B, tail);
  700|    468|                else
  701|    468|                    return nullptr;
  702|    830|            }
  703|  5.92k|        } else
  704|    814|            new_child = node_t::make_path_e(e, level - B, tail);
  705|       |
  706|  6.26k|        if (mutate) {
  ------------------
  |  Branch (706:13): [True: 0, False: 6.26k]
  ------------------
  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|  6.26k|        } else {
  715|  6.26k|            IMMER_TRY {
  ------------------
  |  |   49|  6.26k|#define IMMER_TRY try
  ------------------
  716|  6.26k|                auto count    = new_idx + 1;
  717|  6.26k|                auto new_node = node_t::copy_inner_r_e(e, pos.node(), new_idx);
  718|  6.26k|                auto relaxed  = new_node->relaxed();
  719|  6.26k|                new_node->inner()[new_idx] = new_child;
  720|  6.26k|                relaxed->d.sizes[new_idx]  = pos.size() + ts;
  721|  6.26k|                relaxed->d.count           = count;
  722|  6.26k|                assert(relaxed->d.sizes[new_idx]);
  ------------------
  |  Branch (722:17): [True: 6.26k, False: 0]
  ------------------
  723|  6.26k|                if (Mutating)
  ------------------
  |  Branch (723:21): [Folded, False: 6.26k]
  ------------------
  724|      0|                    pos.visit(dec_visitor{});
  725|  6.26k|                return new_node;
  726|  6.26k|            }
  727|  6.26k|            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|  6.26k|        }
  737|  6.26k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEJRjEEEPSC_OT_NSA_5applyIS7_E4type4editESJ_DpOT0_:
  741|  1.06k|    {
  742|  1.06k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 1.06k, False: 0]
  ------------------
  743|  1.06k|        auto node    = pos.node();
  744|  1.06k|        auto idx     = pos.index(pos.size() - 1);
  745|  1.06k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|  1.06k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [Folded, False: 1.06k]
  |  Branch (746:36): [True: 0, False: 0]
  ------------------
  747|  1.06k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 0, False: 1.06k]
  ------------------
  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|  1.06k|        } else {
  754|  1.06k|            auto new_parent = node_t::make_inner_e(e);
  755|  1.06k|            IMMER_TRY {
  ------------------
  |  |   49|  1.06k|#define IMMER_TRY try
  ------------------
  756|  1.06k|                new_parent->inner()[new_idx] =
  757|  1.06k|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 581, False: 482]
  ------------------
  758|  1.06k|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|  1.06k|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|  1.06k|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|  1.06k|                if (Mutating)
  ------------------
  |  Branch (762:21): [Folded, False: 1.06k]
  ------------------
  763|      0|                    pos.visit(dec_visitor{});
  764|  1.06k|                return new_parent;
  765|  1.06k|            }
  766|  1.06k|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|  1.06k|        }
  771|  1.06k|    }
_ZN5immer6detail4rbts21push_tail_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEJEEEPSC_OT_NSA_5applyIS7_E4type4editESI_DpOT0_:
  741|   192k|    {
  742|   192k|        assert((pos.size() & mask<BL>) == 0);
  ------------------
  |  Branch (742:9): [True: 192k, False: 0]
  ------------------
  743|   192k|        auto node    = pos.node();
  744|   192k|        auto idx     = pos.index(pos.size() - 1);
  745|   192k|        auto new_idx = pos.index(pos.size() + branches<BL> - 1);
  746|   192k|        auto mutate  = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (746:24): [True: 192k, Folded]
  |  Branch (746:36): [True: 191k, False: 649]
  ------------------
  747|   192k|        if (mutate) {
  ------------------
  |  Branch (747:13): [True: 191k, False: 649]
  ------------------
  748|   191k|            node->inner()[new_idx] =
  749|   191k|                idx == new_idx ? pos.last_oh(this_t{}, idx, e, tail)
  ------------------
  |  Branch (749:17): [True: 183k, False: 8.64k]
  ------------------
  750|       |                               /* otherwise */
  751|   191k|                               : node_t::make_path_e(e, pos.shift() - B, tail);
  752|   191k|            return node;
  753|   191k|        } else {
  754|    649|            auto new_parent = node_t::make_inner_e(e);
  755|    649|            IMMER_TRY {
  ------------------
  |  |   49|    649|#define IMMER_TRY try
  ------------------
  756|    649|                new_parent->inner()[new_idx] =
  757|    649|                    idx == new_idx
  ------------------
  |  Branch (757:21): [True: 319, False: 330]
  ------------------
  758|    649|                        ? pos.last_oh(this_no_mut_t{}, idx, e, tail)
  759|       |                        /* otherwise */
  760|    649|                        : node_t::make_path_e(e, pos.shift() - B, tail);
  761|    649|                node_t::do_copy_inner(new_parent, node, new_idx);
  762|    649|                if (Mutating)
  ------------------
  |  Branch (762:21): [True: 649, Folded]
  ------------------
  763|    649|                    pos.visit(dec_visitor{});
  764|    649|                return new_parent;
  765|    649|            }
  766|    649|            IMMER_CATCH (...) {
  767|      0|                node_t::delete_inner_e(new_parent);
  768|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  769|      0|            }
  770|    649|        }
  771|   192k|    }
_ZN5immer6detail4rbts17dec_empty_regularINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEvPT_:
  580|  2.13k|{
  581|  2.13k|    make_empty_regular_pos(node).visit(dec_visitor());
  582|  2.13k|}
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_relaxedIRNS1_11relaxed_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  595|   108k|    {
  596|   108k|        auto offset = pos.index(idx);
  597|   108k|        auto count  = pos.count();
  598|   108k|        auto node   = pos.node();
  599|   108k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (599:13): [True: 80.5k, False: 27.6k]
  ------------------
  600|  80.5k|            return pos.towards_oh(
  601|  80.5k|                this_t{}, idx, offset, e, &node->inner()[offset]);
  602|  80.5k|        } else {
  603|  27.6k|            auto new_node = node_t::copy_inner_sr_e(e, node, count);
  604|  27.6k|            IMMER_TRY {
  ------------------
  |  |   49|  27.6k|#define IMMER_TRY try
  ------------------
  605|  27.6k|                auto& res = pos.towards_oh(
  606|  27.6k|                    this_t{}, idx, offset, e, &new_node->inner()[offset]);
  607|  27.6k|                pos.visit(dec_visitor{});
  608|  27.6k|                *location = new_node;
  609|  27.6k|                return res;
  610|  27.6k|            }
  611|  27.6k|            IMMER_CATCH (...) {
  612|      0|                dec_relaxed(new_node, pos.shift());
  613|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  614|      0|            }
  615|  27.6k|        }
  616|   108k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_12leaf_sub_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|  16.1k|    {
  653|  16.1k|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 16.1k, False: 0]
  ------------------
  654|  16.1k|        auto node = pos.node();
  655|  16.1k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 1.91k, False: 14.2k]
  ------------------
  656|  1.91k|            return node->leaf()[pos.index(idx)];
  657|  14.2k|        } else {
  658|  14.2k|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|  14.2k|            pos.visit(dec_visitor{});
  660|  14.2k|            *location = new_node;
  661|  14.2k|            return new_node->leaf()[pos.index(idx)];
  662|  14.2k|        }
  663|  16.1k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_15regular_sub_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  4.68k|    {
  622|  4.68k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 4.68k, False: 0]
  ------------------
  623|  4.68k|        auto offset = pos.index(idx);
  624|  4.68k|        auto count  = pos.count();
  625|  4.68k|        auto node   = pos.node();
  626|  4.68k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 2.93k, False: 1.74k]
  ------------------
  627|  2.93k|            return pos.towards_oh_ch(
  628|  2.93k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  2.93k|        } 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|  4.68k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_13full_leaf_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|  2.72k|    {
  653|  2.72k|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 2.72k, False: 0]
  ------------------
  654|  2.72k|        auto node = pos.node();
  655|  2.72k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 1.08k, False: 1.63k]
  ------------------
  656|  1.08k|            return node->leaf()[pos.index(idx)];
  657|  1.63k|        } else {
  658|  1.63k|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|  1.63k|            pos.visit(dec_visitor{});
  660|  1.63k|            *location = new_node;
  661|  1.63k|            return new_node->leaf()[pos.index(idx)];
  662|  1.63k|        }
  663|  2.72k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_8full_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  2.03k|    {
  622|  2.03k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 2.03k, False: 0]
  ------------------
  623|  2.03k|        auto offset = pos.index(idx);
  624|  2.03k|        auto count  = pos.count();
  625|  2.03k|        auto node   = pos.node();
  626|  2.03k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 1.01k, False: 1.01k]
  ------------------
  627|  1.01k|            return pos.towards_oh_ch(
  628|  1.01k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  1.01k|        } else {
  630|  1.01k|            auto new_node = node_t::copy_inner_e(e, node, count);
  631|  1.01k|            IMMER_TRY {
  ------------------
  |  |   49|  1.01k|#define IMMER_TRY try
  ------------------
  632|  1.01k|                auto& res = pos.towards_oh_ch(this_t{},
  633|  1.01k|                                              idx,
  634|  1.01k|                                              offset,
  635|  1.01k|                                              count,
  636|  1.01k|                                              e,
  637|  1.01k|                                              &new_node->inner()[offset]);
  638|  1.01k|                pos.visit(dec_visitor{});
  639|  1.01k|                *location = new_node;
  640|  1.01k|                return res;
  641|  1.01k|            }
  642|  1.01k|            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|  1.01k|        }
  647|  2.03k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10visit_leafIRNS1_8leaf_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  652|  1.95k|    {
  653|  1.95k|        assert(pos.node() == *location);
  ------------------
  |  Branch (653:9): [True: 1.95k, False: 0]
  ------------------
  654|  1.95k|        auto node = pos.node();
  655|  1.95k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (655:13): [True: 1.38k, False: 571]
  ------------------
  656|  1.38k|            return node->leaf()[pos.index(idx)];
  657|  1.38k|        } else {
  658|    571|            auto new_node = node_t::copy_leaf_e(e, pos.node(), pos.count());
  659|    571|            pos.visit(dec_visitor{});
  660|    571|            *location = new_node;
  661|    571|            return new_node->leaf()[pos.index(idx)];
  662|    571|        }
  663|  1.95k|    }
_ZN5immer6detail4rbts15get_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13visit_regularIRNS1_11regular_posISC_EEEERiOT_mNSA_5applyIS7_E4type4editEPPSC_:
  621|  1.78k|    {
  622|  1.78k|        assert(pos.node() == *location);
  ------------------
  |  Branch (622:9): [True: 1.78k, False: 0]
  ------------------
  623|  1.78k|        auto offset = pos.index(idx);
  624|  1.78k|        auto count  = pos.count();
  625|  1.78k|        auto node   = pos.node();
  626|  1.78k|        if (node->can_mutate(e)) {
  ------------------
  |  Branch (626:13): [True: 1.30k, False: 481]
  ------------------
  627|  1.30k|            return pos.towards_oh_ch(
  628|  1.30k|                this_t{}, idx, offset, count, e, &node->inner()[offset]);
  629|  1.30k|        } else {
  630|    481|            auto new_node = node_t::copy_inner_e(e, node, count);
  631|    481|            IMMER_TRY {
  ------------------
  |  |   49|    481|#define IMMER_TRY try
  ------------------
  632|    481|                auto& res = pos.towards_oh_ch(this_t{},
  633|    481|                                              idx,
  634|    481|                                              offset,
  635|    481|                                              count,
  636|    481|                                              e,
  637|    481|                                              &new_node->inner()[offset]);
  638|    481|                pos.visit(dec_visitor{});
  639|    481|                *location = new_node;
  640|    481|                return res;
  641|    481|            }
  642|    481|            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|    481|        }
  647|  1.78k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  35.8k|    {
  914|  35.8k|        auto idx    = pos.index(last);
  915|  35.8k|        auto node   = pos.node();
  916|  35.8k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [True: 35.8k, Folded]
  |  Branch (916:35): [True: 27.2k, False: 8.56k]
  ------------------
  917|  35.8k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [True: 35.8k, Folded]
  |  Branch (917:25): [True: 23.0k, False: 12.7k]
  ------------------
  918|  23.0k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 19.2k, False: 3.86k]
  ------------------
  919|  23.0k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|  23.0k|            if (Mutating)
  ------------------
  |  Branch (920:17): [True: 23.0k, Folded]
  ------------------
  921|  23.0k|                pos.visit(dec_right_visitor{}, count_t{1});
  922|  23.0k|            return res;
  923|  23.0k|        } else {
  924|  12.7k|            using std::get;
  925|  12.7k|            auto subs =
  926|  12.7k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 8.04k, False: 4.69k]
  ------------------
  927|  12.7k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  12.7k|            auto next = get<1>(subs);
  929|  12.7k|            auto ts   = get<2>(subs);
  930|  12.7k|            auto tail = get<3>(subs);
  931|  12.7k|            IMMER_TRY {
  ------------------
  |  |   49|  12.7k|#define IMMER_TRY try
  ------------------
  932|  12.7k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 9.12k, False: 3.62k]
  ------------------
  933|  9.12k|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 5.85k, False: 3.26k]
  ------------------
  934|  5.85k|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|  5.85k|                        pos.each_right(dec_visitor{}, idx + 1);
  936|  5.85k|                        node->inner()[idx] = next;
  937|  5.85k|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|  5.85k|                        nodr->d.count      = idx + 1;
  939|  5.85k|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 5.85k, False: 0]
  ------------------
  940|  5.85k|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|  5.85k|                    } else {
  942|  3.26k|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|  3.26k|                        auto newr = newn->relaxed();
  944|  3.26k|                        newn->inner()[idx] = next;
  945|  3.26k|                        newr->d.sizes[idx] = last + 1 - ts;
  946|  3.26k|                        newr->d.count      = idx + 1;
  947|  3.26k|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 3.26k, False: 0]
  ------------------
  948|  3.26k|                        if (Mutating)
  ------------------
  |  Branch (948:29): [True: 3.26k, Folded]
  ------------------
  949|  3.26k|                            pos.visit(dec_visitor{});
  950|  3.26k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|  3.26k|                    }
  952|  9.12k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 0, False: 3.62k]
  ------------------
  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|  3.62k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [True: 3.62k, Folded]
  |  Branch (956:40): [True: 2.68k, False: 936]
  |  Branch (956:52): [True: 1.98k, False: 701]
  ------------------
  957|  1.98k|                    auto newn = pos.node()->inner()[0];
  958|  1.98k|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 965, False: 1.01k]
  ------------------
  959|    965|                        newn->inc();
  960|  1.98k|                    if (Mutating)
  ------------------
  |  Branch (960:25): [True: 1.98k, Folded]
  ------------------
  961|  1.98k|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|  1.98k|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|  1.98k|                } else {
  964|  1.63k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 1.17k, False: 465]
  ------------------
  965|  1.17k|                        pos.each_right(dec_visitor{}, idx + 1);
  966|  1.17k|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|  1.17k|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|  1.17k|                    } else {
  969|    465|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    465|                        if (Mutating)
  ------------------
  |  Branch (970:29): [True: 465, Folded]
  ------------------
  971|    465|                            pos.visit(dec_visitor{});
  972|    465|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    465|                    }
  974|  1.63k|                }
  975|  12.7k|            }
  976|  12.7k|            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|  12.7k|        }
  987|  35.8k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    847|    {
 1060|    847|        auto old_tail_size = pos.count();
 1061|    847|        auto new_tail_size = pos.index(last) + 1;
 1062|    847|        auto node          = pos.node();
 1063|    847|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 847, Folded]
  |  Branch (1063:42): [True: 254, False: 593]
  ------------------
 1064|    847|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 213, False: 634]
  ------------------
 1065|    213|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 213]
  ------------------
 1066|      0|                node->inc();
 1067|    213|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    634|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 243, False: 391]
  ------------------
 1069|    243|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    243|                              old_tail_size - new_tail_size);
 1071|    243|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    391|        } else {
 1073|    391|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    391|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 391, Folded]
  ------------------
 1075|    391|                pos.visit(dec_visitor{});
 1076|    391|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    391|        }
 1078|    847|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.05k|    {
 1060|  1.05k|        auto old_tail_size = pos.count();
 1061|  1.05k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.05k|        auto node          = pos.node();
 1063|  1.05k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 1.05k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  1.05k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 374, False: 685]
  ------------------
 1065|    374|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 374, Folded]
  ------------------
 1066|    374|                node->inc();
 1067|    374|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    685|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 685]
  ------------------
 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|    685|        } else {
 1073|    685|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    685|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 685]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|    685|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    685|        }
 1078|  1.05k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  13.1k|    {
  914|  13.1k|        auto idx    = pos.index(last);
  915|  13.1k|        auto node   = pos.node();
  916|  13.1k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [Folded, False: 13.1k]
  |  Branch (916:35): [True: 0, False: 0]
  ------------------
  917|  13.1k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [True: 13.1k, Folded]
  |  Branch (917:25): [True: 11.6k, False: 1.56k]
  ------------------
  918|  11.6k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (918:24): [True: 0, False: 11.6k]
  ------------------
  919|  11.6k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  920|  11.6k|            if (Mutating)
  ------------------
  |  Branch (920:17): [Folded, False: 11.6k]
  ------------------
  921|      0|                pos.visit(dec_right_visitor{}, count_t{1});
  922|  11.6k|            return res;
  923|  11.6k|        } else {
  924|  1.56k|            using std::get;
  925|  1.56k|            auto subs =
  926|  1.56k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 0, False: 1.56k]
  ------------------
  927|  1.56k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  1.56k|            auto next = get<1>(subs);
  929|  1.56k|            auto ts   = get<2>(subs);
  930|  1.56k|            auto tail = get<3>(subs);
  931|  1.56k|            IMMER_TRY {
  ------------------
  |  |   49|  1.56k|#define IMMER_TRY try
  ------------------
  932|  1.56k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 578, False: 983]
  ------------------
  933|    578|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 0, False: 578]
  ------------------
  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|    578|                    } else {
  942|    578|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|    578|                        auto newr = newn->relaxed();
  944|    578|                        newn->inner()[idx] = next;
  945|    578|                        newr->d.sizes[idx] = last + 1 - ts;
  946|    578|                        newr->d.count      = idx + 1;
  947|    578|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 578, False: 0]
  ------------------
  948|    578|                        if (Mutating)
  ------------------
  |  Branch (948:29): [Folded, False: 578]
  ------------------
  949|      0|                            pos.visit(dec_visitor{});
  950|    578|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|    578|                    }
  952|    983|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 0, False: 983]
  ------------------
  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|    983|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [True: 983, Folded]
  |  Branch (956:40): [True: 628, False: 355]
  |  Branch (956:52): [True: 309, False: 319]
  ------------------
  957|    309|                    auto newn = pos.node()->inner()[0];
  958|    309|                    if (!mutate)
  ------------------
  |  Branch (958:25): [True: 309, False: 0]
  ------------------
  959|    309|                        newn->inc();
  960|    309|                    if (Mutating)
  ------------------
  |  Branch (960:25): [Folded, False: 309]
  ------------------
  961|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
  962|    309|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
  963|    674|                } else {
  964|    674|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 0, False: 674]
  ------------------
  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|    674|                    } else {
  969|    674|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    674|                        if (Mutating)
  ------------------
  |  Branch (970:29): [Folded, False: 674]
  ------------------
  971|      0|                            pos.visit(dec_visitor{});
  972|    674|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    674|                    }
  974|    674|                }
  975|  1.56k|            }
  976|  1.56k|            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|  1.56k|        }
  987|  13.1k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  1.24k|    {
  992|  1.24k|        auto idx    = pos.index(last);
  993|  1.24k|        auto node   = pos.node();
  994|  1.24k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 1.24k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  1.24k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 1.24k, Folded]
  |  Branch (995:25): [True: 325, False: 921]
  ------------------
  996|    325|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 325]
  ------------------
  997|    325|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|    325|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 325]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|    325|            return res;
 1001|    921|        } else {
 1002|    921|            using std::get;
 1003|    921|            auto subs =
 1004|    921|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 921]
  ------------------
 1005|    921|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|    921|            auto next = get<1>(subs);
 1007|    921|            auto ts   = get<2>(subs);
 1008|    921|            auto tail = get<3>(subs);
 1009|    921|            IMMER_TRY {
  ------------------
  |  |   49|    921|#define IMMER_TRY try
  ------------------
 1010|    921|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 264, False: 657]
  ------------------
 1011|    264|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 264]
  ------------------
 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|    264|                    } else {
 1016|    264|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    264|                        newn->inner()[idx] = next;
 1018|    264|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 264]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    264|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    264|                    }
 1022|    657|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 657]
  ------------------
 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|    657|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 657, Folded]
  |  Branch (1026:40): [True: 401, False: 256]
  |  Branch (1026:52): [True: 196, False: 205]
  ------------------
 1027|    196|                    auto newn = pos.node()->inner()[0];
 1028|    196|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 196, False: 0]
  ------------------
 1029|    196|                        newn->inc();
 1030|    196|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 196]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    196|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    461|                } else {
 1034|    461|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 461]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    461|                    } else {
 1038|    461|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    461|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 461]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    461|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    461|                    }
 1043|    461|                }
 1044|    921|            }
 1045|    921|            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|    921|        }
 1055|  1.24k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.88k|    {
 1060|  1.88k|        auto old_tail_size = pos.count();
 1061|  1.88k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.88k|        auto node          = pos.node();
 1063|  1.88k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 1.88k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  1.88k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 1.19k, False: 693]
  ------------------
 1065|  1.19k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 1.19k, Folded]
  ------------------
 1066|  1.19k|                node->inc();
 1067|  1.19k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.19k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 693]
  ------------------
 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|    693|        } else {
 1073|    693|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    693|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 693]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|    693|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    693|        }
 1078|  1.88k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  1.75k|    {
  992|  1.75k|        auto idx    = pos.index(last);
  993|  1.75k|        auto node   = pos.node();
  994|  1.75k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 1.75k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  1.75k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 1.75k, Folded]
  |  Branch (995:25): [True: 575, False: 1.18k]
  ------------------
  996|    575|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 0, False: 575]
  ------------------
  997|    575|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|    575|            if (Mutating)
  ------------------
  |  Branch (998:17): [Folded, False: 575]
  ------------------
  999|      0|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|    575|            return res;
 1001|  1.18k|        } else {
 1002|  1.18k|            using std::get;
 1003|  1.18k|            auto subs =
 1004|  1.18k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 1.18k]
  ------------------
 1005|  1.18k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  1.18k|            auto next = get<1>(subs);
 1007|  1.18k|            auto ts   = get<2>(subs);
 1008|  1.18k|            auto tail = get<3>(subs);
 1009|  1.18k|            IMMER_TRY {
  ------------------
  |  |   49|  1.18k|#define IMMER_TRY try
  ------------------
 1010|  1.18k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 268, False: 912]
  ------------------
 1011|    268|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 268]
  ------------------
 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|    268|                    } else {
 1016|    268|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    268|                        newn->inner()[idx] = next;
 1018|    268|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 268]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    268|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    268|                    }
 1022|    912|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 912]
  ------------------
 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|    912|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 912, Folded]
  |  Branch (1026:40): [True: 406, False: 506]
  |  Branch (1026:52): [True: 209, False: 197]
  ------------------
 1027|    209|                    auto newn = pos.node()->inner()[0];
 1028|    209|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 209, False: 0]
  ------------------
 1029|    209|                        newn->inc();
 1030|    209|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [Folded, False: 209]
  ------------------
 1031|      0|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    209|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    703|                } else {
 1034|    703|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 703]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    703|                    } else {
 1038|    703|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    703|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 703]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    703|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    703|                    }
 1043|    703|                }
 1044|  1.18k|            }
 1045|  1.18k|            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|  1.18k|        }
 1055|  1.75k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  3.36k|    {
 1060|  3.36k|        auto old_tail_size = pos.count();
 1061|  3.36k|        auto new_tail_size = pos.index(last) + 1;
 1062|  3.36k|        auto node          = pos.node();
 1063|  3.36k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 3.36k, Folded]
  |  Branch (1063:42): [True: 287, False: 3.07k]
  ------------------
 1064|  3.36k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 1.73k, False: 1.63k]
  ------------------
 1065|  1.73k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 1.73k]
  ------------------
 1066|      0|                node->inc();
 1067|  1.73k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.73k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 283, False: 1.35k]
  ------------------
 1069|    283|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    283|                              old_tail_size - new_tail_size);
 1071|    283|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.35k|        } else {
 1073|  1.35k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.35k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 1.35k, Folded]
  ------------------
 1075|  1.35k|                pos.visit(dec_visitor{});
 1076|  1.35k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.35k|        }
 1078|  3.36k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.76k|    {
  992|  3.76k|        auto idx    = pos.index(last);
  993|  3.76k|        auto node   = pos.node();
  994|  3.76k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 3.76k, Folded]
  |  Branch (994:35): [True: 1.51k, False: 2.24k]
  ------------------
  995|  3.76k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 3.76k]
  |  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|  3.76k|        } else {
 1002|  3.76k|            using std::get;
 1003|  3.76k|            auto subs =
 1004|  3.76k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 1.51k, False: 2.24k]
  ------------------
 1005|  3.76k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  3.76k|            auto next = get<1>(subs);
 1007|  3.76k|            auto ts   = get<2>(subs);
 1008|  3.76k|            auto tail = get<3>(subs);
 1009|  3.76k|            IMMER_TRY {
  ------------------
  |  |   49|  3.76k|#define IMMER_TRY try
  ------------------
 1010|  3.76k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 959, False: 2.80k]
  ------------------
 1011|    959|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 426, False: 533]
  ------------------
 1012|    426|                        node->inner()[idx] = next;
 1013|    426|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    426|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    533|                    } else {
 1016|    533|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    533|                        newn->inner()[idx] = next;
 1018|    533|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 533, Folded]
  ------------------
 1019|    533|                            pos.visit(dec_visitor{});
 1020|    533|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    533|                    }
 1022|  2.80k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 995, False: 1.80k]
  ------------------
 1023|    995|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 995, Folded]
  ------------------
 1024|    995|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    995|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.80k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 1.80k]
  |  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|  1.80k|                } else {
 1034|  1.80k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 343, False: 1.46k]
  ------------------
 1035|    343|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    343|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.46k|                    } else {
 1038|  1.46k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  1.46k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 1.46k, Folded]
  ------------------
 1040|  1.46k|                            pos.visit(dec_visitor{});
 1041|  1.46k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  1.46k|                    }
 1043|  1.80k|                }
 1044|  3.76k|            }
 1045|  3.76k|            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|  3.76k|        }
 1055|  3.76k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  3.57k|    {
  879|  3.57k|        using node_t = node_type<Pos>;
  880|  3.57k|        auto node    = p.node();
  881|  3.57k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 2.18k, False: 1.38k]
  ------------------
  882|  2.18k|            p.each_right(dec_t{}, idx);
  883|  2.18k|            node_t::delete_inner(node, p.count());
  884|  2.18k|        }
  885|  3.57k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE10visit_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: 4.37k, False: 5.73k]
  ------------------
 1065|  4.37k|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 4.37k, Folded]
  ------------------
 1066|  4.37k|                node->inc();
 1067|  4.37k|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  5.73k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 5.73k]
  ------------------
 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|  5.73k|        } else {
 1073|  5.73k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  5.73k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 5.73k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  5.73k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  5.73k|        }
 1078|  10.1k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  4.97k|    {
  992|  4.97k|        auto idx    = pos.index(last);
  993|  4.97k|        auto node   = pos.node();
  994|  4.97k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 4.97k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  4.97k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 4.97k]
  |  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|  4.97k|        } else {
 1002|  4.97k|            using std::get;
 1003|  4.97k|            auto subs =
 1004|  4.97k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 4.97k]
  ------------------
 1005|  4.97k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  4.97k|            auto next = get<1>(subs);
 1007|  4.97k|            auto ts   = get<2>(subs);
 1008|  4.97k|            auto tail = get<3>(subs);
 1009|  4.97k|            IMMER_TRY {
  ------------------
  |  |   49|  4.97k|#define IMMER_TRY try
  ------------------
 1010|  4.97k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 706, False: 4.26k]
  ------------------
 1011|    706|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 706]
  ------------------
 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|    706|                    } else {
 1016|    706|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    706|                        newn->inner()[idx] = next;
 1018|    706|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 706]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    706|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    706|                    }
 1022|  4.26k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 913, False: 3.35k]
  ------------------
 1023|    913|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 913]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    913|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  3.35k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 3.35k]
  |  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|  3.35k|                } else {
 1034|  3.35k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 3.35k]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  3.35k|                    } else {
 1038|  3.35k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  3.35k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 3.35k]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|  3.35k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  3.35k|                    }
 1043|  3.35k|                }
 1044|  4.97k|            }
 1045|  4.97k|            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|  4.97k|        }
 1055|  4.97k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    410|    {
 1060|    410|        auto old_tail_size = pos.count();
 1061|    410|        auto new_tail_size = pos.index(last) + 1;
 1062|    410|        auto node          = pos.node();
 1063|    410|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 410]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|    410|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 194, False: 216]
  ------------------
 1065|    194|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 194, Folded]
  ------------------
 1066|    194|                node->inc();
 1067|    194|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    216|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 216]
  ------------------
 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|    216|        } else {
 1073|    216|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    216|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 216]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|    216|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    216|        }
 1078|    410|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.46k|    {
 1060|  1.46k|        auto old_tail_size = pos.count();
 1061|  1.46k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.46k|        auto node          = pos.node();
 1063|  1.46k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 1.46k, Folded]
  |  Branch (1063:42): [True: 199, False: 1.26k]
  ------------------
 1064|  1.46k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 440, False: 1.02k]
  ------------------
 1065|    440|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 440]
  ------------------
 1066|      0|                node->inc();
 1067|    440|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.02k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 199, False: 823]
  ------------------
 1069|    199|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    199|                              old_tail_size - new_tail_size);
 1071|    199|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    823|        } else {
 1073|    823|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    823|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 823, Folded]
  ------------------
 1075|    823|                pos.visit(dec_visitor{});
 1076|    823|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    823|        }
 1078|  1.46k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.71k|    {
  992|  3.71k|        auto idx    = pos.index(last);
  993|  3.71k|        auto node   = pos.node();
  994|  3.71k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 3.71k, Folded]
  |  Branch (994:35): [True: 2.68k, False: 1.02k]
  ------------------
  995|  3.71k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 3.71k]
  |  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|  3.71k|        } else {
 1002|  3.71k|            using std::get;
 1003|  3.71k|            auto subs =
 1004|  3.71k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 2.68k, False: 1.02k]
  ------------------
 1005|  3.71k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  3.71k|            auto next = get<1>(subs);
 1007|  3.71k|            auto ts   = get<2>(subs);
 1008|  3.71k|            auto tail = get<3>(subs);
 1009|  3.71k|            IMMER_TRY {
  ------------------
  |  |   49|  3.71k|#define IMMER_TRY try
  ------------------
 1010|  3.71k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 1.59k, False: 2.11k]
  ------------------
 1011|  1.59k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 1.13k, False: 461]
  ------------------
 1012|  1.13k|                        node->inner()[idx] = next;
 1013|  1.13k|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|  1.13k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|  1.13k|                    } else {
 1016|    461|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    461|                        newn->inner()[idx] = next;
 1018|    461|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 461, Folded]
  ------------------
 1019|    461|                            pos.visit(dec_visitor{});
 1020|    461|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    461|                    }
 1022|  2.11k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 1.35k, False: 767]
  ------------------
 1023|  1.35k|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 1.35k, Folded]
  ------------------
 1024|  1.35k|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|  1.35k|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.35k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 767]
  |  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|    767|                } else {
 1034|    767|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 515, False: 252]
  ------------------
 1035|    515|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    515|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    515|                    } else {
 1038|    252|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    252|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 252, Folded]
  ------------------
 1040|    252|                            pos.visit(dec_visitor{});
 1041|    252|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    252|                    }
 1043|    767|                }
 1044|  3.71k|            }
 1045|  3.71k|            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|  3.71k|        }
 1055|  3.71k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  1.35k|    {
  879|  1.35k|        using node_t = node_type<Pos>;
  880|  1.35k|        auto node    = p.node();
  881|  1.35k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 1.03k, False: 316]
  ------------------
  882|  1.03k|            p.each_right(dec_t{}, idx);
  883|  1.03k|            node_t::delete_inner(node, p.count());
  884|  1.03k|        }
  885|  1.35k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  2.23k|    {
 1060|  2.23k|        auto old_tail_size = pos.count();
 1061|  2.23k|        auto new_tail_size = pos.index(last) + 1;
 1062|  2.23k|        auto node          = pos.node();
 1063|  2.23k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 2.23k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  2.23k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 370, False: 1.86k]
  ------------------
 1065|    370|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 370, Folded]
  ------------------
 1066|    370|                node->inc();
 1067|    370|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.86k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 1.86k]
  ------------------
 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|  1.86k|        } else {
 1073|  1.86k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.86k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 1.86k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  1.86k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.86k|        }
 1078|  2.23k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_11regular_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.35k|    {
  992|  3.35k|        auto idx    = pos.index(last);
  993|  3.35k|        auto node   = pos.node();
  994|  3.35k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [Folded, False: 3.35k]
  |  Branch (994:35): [True: 0, False: 0]
  ------------------
  995|  3.35k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 3.35k]
  |  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|  3.35k|        } else {
 1002|  3.35k|            using std::get;
 1003|  3.35k|            auto subs =
 1004|  3.35k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 0, False: 3.35k]
  ------------------
 1005|  3.35k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  3.35k|            auto next = get<1>(subs);
 1007|  3.35k|            auto ts   = get<2>(subs);
 1008|  3.35k|            auto tail = get<3>(subs);
 1009|  3.35k|            IMMER_TRY {
  ------------------
  |  |   49|  3.35k|#define IMMER_TRY try
  ------------------
 1010|  3.35k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 778, False: 2.58k]
  ------------------
 1011|    778|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 778]
  ------------------
 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|    778|                    } else {
 1016|    778|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    778|                        newn->inner()[idx] = next;
 1018|    778|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 778]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|    778|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    778|                    }
 1022|  2.58k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 940, False: 1.64k]
  ------------------
 1023|    940|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 940]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    940|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|  1.64k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 1.64k]
  |  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|  1.64k|                } else {
 1034|  1.64k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 1.64k]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.64k|                    } else {
 1038|  1.64k|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|  1.64k|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 1.64k]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|  1.64k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|  1.64k|                    }
 1043|  1.64k|                }
 1044|  3.35k|            }
 1045|  3.35k|            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|  3.35k|        }
 1055|  3.35k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_j:
  867|  25.5k|    {
  868|  25.5k|        using node_t = node_type<Pos>;
  869|  25.5k|        auto node    = p.node();
  870|  25.5k|        if (node->dec()) {
  ------------------
  |  Branch (870:13): [True: 20.4k, False: 5.12k]
  ------------------
  871|  20.4k|            p.each_right(dec_t{}, idx);
  872|  20.4k|            node_t::delete_inner_r(node, p.count());
  873|  20.4k|        }
  874|  25.5k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.87k|    {
 1060|  1.87k|        auto old_tail_size = pos.count();
 1061|  1.87k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.87k|        auto node          = pos.node();
 1063|  1.87k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 1.87k, Folded]
  |  Branch (1063:42): [True: 368, False: 1.50k]
  ------------------
 1064|  1.87k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 465, False: 1.40k]
  ------------------
 1065|    465|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 465]
  ------------------
 1066|      0|                node->inc();
 1067|    465|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.40k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 334, False: 1.07k]
  ------------------
 1069|    334|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    334|                              old_tail_size - new_tail_size);
 1071|    334|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|  1.07k|        } else {
 1073|  1.07k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  1.07k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 1.07k, Folded]
  ------------------
 1075|  1.07k|                pos.visit(dec_visitor{});
 1076|  1.07k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  1.07k|        }
 1078|  1.87k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  2.79k|    {
  914|  2.79k|        auto idx    = pos.index(last);
  915|  2.79k|        auto node   = pos.node();
  916|  2.79k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [True: 2.79k, Folded]
  |  Branch (916:35): [True: 1.41k, False: 1.37k]
  ------------------
  917|  2.79k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [Folded, False: 2.79k]
  |  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|  2.79k|        } else {
  924|  2.79k|            using std::get;
  925|  2.79k|            auto subs =
  926|  2.79k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 1.41k, False: 1.37k]
  ------------------
  927|  2.79k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  2.79k|            auto next = get<1>(subs);
  929|  2.79k|            auto ts   = get<2>(subs);
  930|  2.79k|            auto tail = get<3>(subs);
  931|  2.79k|            IMMER_TRY {
  ------------------
  |  |   49|  2.79k|#define IMMER_TRY try
  ------------------
  932|  2.79k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 835, False: 1.95k]
  ------------------
  933|    835|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 366, False: 469]
  ------------------
  934|    366|                        auto nodr = node->ensure_mutable_relaxed_n(e, idx);
  935|    366|                        pos.each_right(dec_visitor{}, idx + 1);
  936|    366|                        node->inner()[idx] = next;
  937|    366|                        nodr->d.sizes[idx] = last + 1 - ts;
  938|    366|                        nodr->d.count      = idx + 1;
  939|    366|                        assert(nodr->d.sizes[idx]);
  ------------------
  |  Branch (939:25): [True: 366, False: 0]
  ------------------
  940|    366|                        return std::make_tuple(pos.shift(), node, ts, tail);
  941|    469|                    } else {
  942|    469|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|    469|                        auto newr = newn->relaxed();
  944|    469|                        newn->inner()[idx] = next;
  945|    469|                        newr->d.sizes[idx] = last + 1 - ts;
  946|    469|                        newr->d.count      = idx + 1;
  947|    469|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 469, False: 0]
  ------------------
  948|    469|                        if (Mutating)
  ------------------
  |  Branch (948:29): [True: 469, Folded]
  ------------------
  949|    469|                            pos.visit(dec_visitor{});
  950|    469|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|    469|                    }
  952|  1.95k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 539, False: 1.41k]
  ------------------
  953|    539|                    if (Mutating)
  ------------------
  |  Branch (953:25): [True: 539, Folded]
  ------------------
  954|    539|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|    539|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  1.41k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [Folded, False: 1.41k]
  |  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|  1.41k|                } else {
  964|  1.41k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 806, False: 612]
  ------------------
  965|    806|                        pos.each_right(dec_visitor{}, idx + 1);
  966|    806|                        node->ensure_mutable_relaxed_n(e, idx)->d.count = idx;
  967|    806|                        return std::make_tuple(pos.shift(), node, ts, tail);
  968|    806|                    } else {
  969|    612|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|    612|                        if (Mutating)
  ------------------
  |  Branch (970:29): [True: 612, Folded]
  ------------------
  971|    612|                            pos.visit(dec_visitor{});
  972|    612|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|    612|                    }
  974|  1.41k|                }
  975|  2.79k|            }
  976|  2.79k|            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|  2.79k|        }
  987|  2.79k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  4.80k|    {
  992|  4.80k|        auto idx    = pos.index(last);
  993|  4.80k|        auto node   = pos.node();
  994|  4.80k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 4.80k, Folded]
  |  Branch (994:35): [True: 3.62k, False: 1.18k]
  ------------------
  995|  4.80k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [Folded, False: 4.80k]
  |  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|  4.80k|        } else {
 1002|  4.80k|            using std::get;
 1003|  4.80k|            auto subs =
 1004|  4.80k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 3.62k, False: 1.18k]
  ------------------
 1005|  4.80k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  4.80k|            auto next = get<1>(subs);
 1007|  4.80k|            auto ts   = get<2>(subs);
 1008|  4.80k|            auto tail = get<3>(subs);
 1009|  4.80k|            IMMER_TRY {
  ------------------
  |  |   49|  4.80k|#define IMMER_TRY try
  ------------------
 1010|  4.80k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 3.29k, False: 1.50k]
  ------------------
 1011|  3.29k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 2.73k, False: 560]
  ------------------
 1012|  2.73k|                        node->inner()[idx] = next;
 1013|  2.73k|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|  2.73k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|  2.73k|                    } else {
 1016|    560|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    560|                        newn->inner()[idx] = next;
 1018|    560|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 560, Folded]
  ------------------
 1019|    560|                            pos.visit(dec_visitor{});
 1020|    560|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    560|                    }
 1022|  3.29k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 832, False: 671]
  ------------------
 1023|    832|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [True: 832, Folded]
  ------------------
 1024|    832|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    832|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    832|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 671]
  |  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|    671|                } else {
 1034|    671|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 329, False: 342]
  ------------------
 1035|    329|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    329|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    342|                    } else {
 1038|    342|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    342|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 342, Folded]
  ------------------
 1040|    342|                            pos.visit(dec_visitor{});
 1041|    342|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    342|                    }
 1043|    671|                }
 1044|  4.80k|            }
 1045|  4.80k|            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|  4.80k|        }
 1055|  4.80k|    }
_ZN5immer6detail4rbts17dec_right_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_j:
  878|  10.4k|    {
  879|  10.4k|        using node_t = node_type<Pos>;
  880|  10.4k|        auto node    = p.node();
  881|  10.4k|        if (node->dec()) {
  ------------------
  |  Branch (881:13): [True: 7.39k, False: 3.08k]
  ------------------
  882|  7.39k|            p.each_right(dec_t{}, idx);
  883|  7.39k|            node_t::delete_inner(node, p.count());
  884|  7.39k|        }
  885|  10.4k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  4.43k|    {
 1060|  4.43k|        auto old_tail_size = pos.count();
 1061|  4.43k|        auto new_tail_size = pos.index(last) + 1;
 1062|  4.43k|        auto node          = pos.node();
 1063|  4.43k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [Folded, False: 4.43k]
  |  Branch (1063:42): [True: 0, False: 0]
  ------------------
 1064|  4.43k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 732, False: 3.70k]
  ------------------
 1065|    732|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [True: 732, Folded]
  ------------------
 1066|    732|                node->inc();
 1067|    732|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  3.70k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 0, False: 3.70k]
  ------------------
 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|  3.70k|        } else {
 1073|  3.70k|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|  3.70k|            if (Mutating)
  ------------------
  |  Branch (1074:17): [Folded, False: 3.70k]
  ------------------
 1075|      0|                pos.visit(dec_visitor{});
 1076|  3.70k|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|  3.70k|        }
 1078|  4.43k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  913|  3.55k|    {
  914|  3.55k|        auto idx    = pos.index(last);
  915|  3.55k|        auto node   = pos.node();
  916|  3.55k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (916:23): [Folded, False: 3.55k]
  |  Branch (916:35): [True: 0, False: 0]
  ------------------
  917|  3.55k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (917:13): [Folded, False: 3.55k]
  |  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|  3.55k|        } else {
  924|  3.55k|            using std::get;
  925|  3.55k|            auto subs =
  926|  3.55k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (926:17): [True: 0, False: 3.55k]
  ------------------
  927|  3.55k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
  928|  3.55k|            auto next = get<1>(subs);
  929|  3.55k|            auto ts   = get<2>(subs);
  930|  3.55k|            auto tail = get<3>(subs);
  931|  3.55k|            IMMER_TRY {
  ------------------
  |  |   49|  3.55k|#define IMMER_TRY try
  ------------------
  932|  3.55k|                if (next) {
  ------------------
  |  Branch (932:21): [True: 788, False: 2.77k]
  ------------------
  933|    788|                    if (mutate) {
  ------------------
  |  Branch (933:25): [True: 0, False: 788]
  ------------------
  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|    788|                    } else {
  942|    788|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  943|    788|                        auto newr = newn->relaxed();
  944|    788|                        newn->inner()[idx] = next;
  945|    788|                        newr->d.sizes[idx] = last + 1 - ts;
  946|    788|                        newr->d.count      = idx + 1;
  947|    788|                        assert(newr->d.sizes[idx]);
  ------------------
  |  Branch (947:25): [True: 788, False: 0]
  ------------------
  948|    788|                        if (Mutating)
  ------------------
  |  Branch (948:29): [Folded, False: 788]
  ------------------
  949|      0|                            pos.visit(dec_visitor{});
  950|    788|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  951|    788|                    }
  952|  2.77k|                } else if (idx == 0) {
  ------------------
  |  Branch (952:28): [True: 928, False: 1.84k]
  ------------------
  953|    928|                    if (Mutating)
  ------------------
  |  Branch (953:25): [Folded, False: 928]
  ------------------
  954|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
  955|    928|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
  956|  1.84k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (956:28): [Folded, False: 1.84k]
  |  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|  1.84k|                } else {
  964|  1.84k|                    if (mutate) {
  ------------------
  |  Branch (964:25): [True: 0, False: 1.84k]
  ------------------
  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|  1.84k|                    } else {
  969|  1.84k|                        auto newn = node_t::copy_inner_r_e(e, node, idx);
  970|  1.84k|                        if (Mutating)
  ------------------
  |  Branch (970:29): [Folded, False: 1.84k]
  ------------------
  971|      0|                            pos.visit(dec_visitor{});
  972|  1.84k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
  973|  1.84k|                    }
  974|  1.84k|                }
  975|  3.55k|            }
  976|  3.55k|            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|  3.55k|        }
  987|  3.55k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_15regular_sub_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: 2.05k, False: 1.13k]
  ------------------
 1011|  2.05k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 0, False: 2.05k]
  ------------------
 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|  2.05k|                    } else {
 1016|  2.05k|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|  2.05k|                        newn->inner()[idx] = next;
 1018|  2.05k|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [Folded, False: 2.05k]
  ------------------
 1019|      0|                            pos.visit(dec_visitor{});
 1020|  2.05k|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|  2.05k|                    }
 1022|  2.05k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 724, False: 413]
  ------------------
 1023|    724|                    if (Mutating)
  ------------------
  |  Branch (1023:25): [Folded, False: 724]
  ------------------
 1024|      0|                        pos.visit(dec_right_visitor{}, count_t{1});
 1025|    724|                    return std::make_tuple(pos.shift(), nullptr, ts, tail);
 1026|    724|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [Folded, False: 413]
  |  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|    413|                } else {
 1034|    413|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 0, False: 413]
  ------------------
 1035|      0|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|      0|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    413|                    } else {
 1038|    413|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    413|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [Folded, False: 413]
  ------------------
 1040|      0|                            pos.visit(dec_visitor{});
 1041|    413|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    413|                    }
 1043|    413|                }
 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|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  12.7k|    {
  992|  12.7k|        auto idx    = pos.index(last);
  993|  12.7k|        auto node   = pos.node();
  994|  12.7k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 12.7k, Folded]
  |  Branch (994:35): [True: 8.77k, False: 3.99k]
  ------------------
  995|  12.7k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 12.7k, Folded]
  |  Branch (995:25): [True: 7.34k, False: 5.42k]
  ------------------
  996|  7.34k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 5.07k, False: 2.27k]
  ------------------
  997|  7.34k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|  7.34k|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 7.34k, Folded]
  ------------------
  999|  7.34k|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|  7.34k|            return res;
 1001|  7.34k|        } else {
 1002|  5.42k|            using std::get;
 1003|  5.42k|            auto subs =
 1004|  5.42k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 3.69k, False: 1.72k]
  ------------------
 1005|  5.42k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  5.42k|            auto next = get<1>(subs);
 1007|  5.42k|            auto ts   = get<2>(subs);
 1008|  5.42k|            auto tail = get<3>(subs);
 1009|  5.42k|            IMMER_TRY {
  ------------------
  |  |   49|  5.42k|#define IMMER_TRY try
  ------------------
 1010|  5.42k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 1.22k, False: 4.20k]
  ------------------
 1011|  1.22k|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 635, False: 585]
  ------------------
 1012|    635|                        node->inner()[idx] = next;
 1013|    635|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    635|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    635|                    } else {
 1016|    585|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    585|                        newn->inner()[idx] = next;
 1018|    585|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 585, Folded]
  ------------------
 1019|    585|                            pos.visit(dec_visitor{});
 1020|    585|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    585|                    }
 1022|  4.20k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 4.20k]
  ------------------
 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|  4.20k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 4.20k, Folded]
  |  Branch (1026:40): [True: 3.62k, False: 577]
  |  Branch (1026:52): [True: 2.29k, False: 1.32k]
  ------------------
 1027|  2.29k|                    auto newn = pos.node()->inner()[0];
 1028|  2.29k|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 535, False: 1.76k]
  ------------------
 1029|    535|                        newn->inc();
 1030|  2.29k|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 2.29k, Folded]
  ------------------
 1031|  2.29k|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|  2.29k|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|  2.29k|                } else {
 1034|  1.90k|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 1.30k, False: 605]
  ------------------
 1035|  1.30k|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|  1.30k|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|  1.30k|                    } else {
 1038|    605|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    605|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 605, Folded]
  ------------------
 1040|    605|                            pos.visit(dec_visitor{});
 1041|    605|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    605|                    }
 1043|  1.90k|                }
 1044|  5.42k|            }
 1045|  5.42k|            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|  5.42k|        }
 1055|  12.7k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|  1.79k|    {
 1060|  1.79k|        auto old_tail_size = pos.count();
 1061|  1.79k|        auto new_tail_size = pos.index(last) + 1;
 1062|  1.79k|        auto node          = pos.node();
 1063|  1.79k|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 1.79k, Folded]
  |  Branch (1063:42): [True: 665, False: 1.13k]
  ------------------
 1064|  1.79k|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 265, False: 1.53k]
  ------------------
 1065|    265|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 265]
  ------------------
 1066|      0|                node->inc();
 1067|    265|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|  1.53k|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 665, False: 868]
  ------------------
 1069|    665|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    665|                              old_tail_size - new_tail_size);
 1071|    665|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    868|        } else {
 1073|    868|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    868|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 868, Folded]
  ------------------
 1075|    868|                pos.visit(dec_visitor{});
 1076|    868|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    868|        }
 1078|  1.79k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
  991|  3.71k|    {
  992|  3.71k|        auto idx    = pos.index(last);
  993|  3.71k|        auto node   = pos.node();
  994|  3.71k|        auto mutate = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (994:23): [True: 3.71k, Folded]
  |  Branch (994:35): [True: 1.96k, False: 1.75k]
  ------------------
  995|  3.71k|        if (Collapse && idx == 0) {
  ------------------
  |  Branch (995:13): [True: 3.71k, Folded]
  |  Branch (995:25): [True: 2.06k, False: 1.65k]
  ------------------
  996|  2.06k|            auto res = mutate ? pos.towards_oh(this_t{}, last, idx, e)
  ------------------
  |  Branch (996:24): [True: 1.18k, False: 882]
  ------------------
  997|  2.06k|                              : pos.towards_oh(no_mut_t{}, last, idx, e);
  998|  2.06k|            if (Mutating)
  ------------------
  |  Branch (998:17): [True: 2.06k, Folded]
  ------------------
  999|  2.06k|                pos.visit(dec_right_visitor{}, count_t{1});
 1000|  2.06k|            return res;
 1001|  2.06k|        } else {
 1002|  1.65k|            using std::get;
 1003|  1.65k|            auto subs =
 1004|  1.65k|                mutate ? pos.towards_oh(no_collapse_t{}, last, idx, e)
  ------------------
  |  Branch (1004:17): [True: 786, False: 870]
  ------------------
 1005|  1.65k|                       : pos.towards_oh(no_collapse_no_mut_t{}, last, idx, e);
 1006|  1.65k|            auto next = get<1>(subs);
 1007|  1.65k|            auto ts   = get<2>(subs);
 1008|  1.65k|            auto tail = get<3>(subs);
 1009|  1.65k|            IMMER_TRY {
  ------------------
  |  |   49|  1.65k|#define IMMER_TRY try
  ------------------
 1010|  1.65k|                if (next) {
  ------------------
  |  Branch (1010:21): [True: 462, False: 1.19k]
  ------------------
 1011|    462|                    if (mutate) {
  ------------------
  |  Branch (1011:25): [True: 197, False: 265]
  ------------------
 1012|    197|                        node->inner()[idx] = next;
 1013|    197|                        pos.each_right(dec_visitor{}, idx + 1);
 1014|    197|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1015|    265|                    } else {
 1016|    265|                        auto newn          = node_t::copy_inner_e(e, node, idx);
 1017|    265|                        newn->inner()[idx] = next;
 1018|    265|                        if (Mutating)
  ------------------
  |  Branch (1018:29): [True: 265, Folded]
  ------------------
 1019|    265|                            pos.visit(dec_visitor{});
 1020|    265|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1021|    265|                    }
 1022|  1.19k|                } else if (idx == 0) {
  ------------------
  |  Branch (1022:28): [True: 0, False: 1.19k]
  ------------------
 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|  1.19k|                } else if (Collapse && idx == 1 && pos.shift() > BL) {
  ------------------
  |  Branch (1026:28): [True: 1.19k, Folded]
  |  Branch (1026:40): [True: 744, False: 450]
  |  Branch (1026:52): [True: 521, False: 223]
  ------------------
 1027|    521|                    auto newn = pos.node()->inner()[0];
 1028|    521|                    if (!mutate)
  ------------------
  |  Branch (1028:25): [True: 258, False: 263]
  ------------------
 1029|    258|                        newn->inc();
 1030|    521|                    if (Mutating)
  ------------------
  |  Branch (1030:25): [True: 521, Folded]
  ------------------
 1031|    521|                        pos.visit(dec_right_visitor{}, count_t{2});
 1032|    521|                    return std::make_tuple(pos.shift() - B, newn, ts, tail);
 1033|    673|                } else {
 1034|    673|                    if (mutate) {
  ------------------
  |  Branch (1034:25): [True: 326, False: 347]
  ------------------
 1035|    326|                        pos.each_right(dec_visitor{}, idx + 1);
 1036|    326|                        return std::make_tuple(pos.shift(), node, ts, tail);
 1037|    347|                    } else {
 1038|    347|                        auto newn = node_t::copy_inner_e(e, node, idx);
 1039|    347|                        if (Mutating)
  ------------------
  |  Branch (1039:29): [True: 347, Folded]
  ------------------
 1040|    347|                            pos.visit(dec_visitor{});
 1041|    347|                        return std::make_tuple(pos.shift(), newn, ts, tail);
 1042|    347|                    }
 1043|    673|                }
 1044|  1.65k|            }
 1045|  1.65k|            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|  1.65k|        }
 1055|  3.71k|    }
_ZN5immer6detail4rbts23slice_right_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_8leaf_posISC_EEEENSt3__15tupleIJjPSC_jSK_EEEOT_mNSA_5applyIS7_E4type4editE:
 1059|    741|    {
 1060|    741|        auto old_tail_size = pos.count();
 1061|    741|        auto new_tail_size = pos.index(last) + 1;
 1062|    741|        auto node          = pos.node();
 1063|    741|        auto mutate        = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1063:30): [True: 741, Folded]
  |  Branch (1063:42): [True: 225, False: 516]
  ------------------
 1064|    741|        if (new_tail_size == old_tail_size) {
  ------------------
  |  Branch (1064:13): [True: 196, False: 545]
  ------------------
 1065|    196|            if (!Mutating)
  ------------------
  |  Branch (1065:17): [Folded, False: 196]
  ------------------
 1066|      0|                node->inc();
 1067|    196|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1068|    545|        } else if (mutate) {
  ------------------
  |  Branch (1068:20): [True: 224, False: 321]
  ------------------
 1069|    224|            detail::destroy_n(node->leaf() + new_tail_size,
 1070|    224|                              old_tail_size - new_tail_size);
 1071|    224|            return std::make_tuple(0, nullptr, new_tail_size, node);
 1072|    321|        } else {
 1073|    321|            auto new_tail = node_t::copy_leaf_e(e, node, new_tail_size);
 1074|    321|            if (Mutating)
  ------------------
  |  Branch (1074:17): [True: 321, Folded]
  ------------------
 1075|    321|                pos.visit(dec_visitor{});
 1076|    321|            return std::make_tuple(0, nullptr, new_tail_size, new_tail);
 1077|    321|        }
 1078|    741|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|    857|    {
 1378|    857|        auto node   = pos.node();
 1379|    857|        auto idx    = pos.index(first);
 1380|    857|        auto count  = pos.count();
 1381|    857|        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|    857|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 596, False: 261]
  ------------------
 1384|    857|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 596, False: 261]
  ------------------
 1385|    596|            auto data     = node->leaf();
 1386|    596|            auto newcount = count - idx;
 1387|    596|            std::move(data + idx, data + count, data);
 1388|    596|            detail::destroy_n(data + newcount, idx);
 1389|    596|            return std::make_tuple(0, node);
 1390|    596|        } else {
 1391|    261|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|    261|            if (Mutating)
  ------------------
  |  Branch (1392:17): [True: 261, Folded]
  ------------------
 1393|    261|                pos.visit(dec_visitor{});
 1394|    261|            return std::make_tuple(0, newn);
 1395|    261|        }
 1396|    857|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  53.3k|    {
 1247|  53.3k|        auto idx                = pos.subindex(first);
 1248|  53.3k|        auto count              = pos.count();
 1249|  53.3k|        auto node               = pos.node();
 1250|  53.3k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [True: 53.3k, Folded]
  |  Branch (1250:47): [True: 45.3k, False: 7.99k]
  ------------------
 1251|  53.3k|        auto left_size          = pos.size_before(idx);
 1252|  53.3k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  53.3k|        auto dropped_size       = first;
 1254|  53.3k|        auto child_dropped_size = dropped_size - left_size;
 1255|  53.3k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [True: 53.3k, Folded]
  |  Branch (1255:25): [True: 51.0k, False: 2.33k]
  |  Branch (1255:45): [True: 4.99k, False: 46.0k]
  ------------------
 1256|  4.99k|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 1.93k, False: 3.05k]
  ------------------
 1257|  4.99k|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|  4.99k|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 1.93k, False: 3.05k]
  ------------------
 1259|  1.93k|                pos.visit(dec_left_visitor{}, idx);
 1260|  3.05k|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [True: 3.05k, Folded]
  ------------------
 1261|  3.05k|                pos.visit(dec_visitor{});
 1262|  4.99k|            return r;
 1263|  48.3k|        } else {
 1264|  48.3k|            using std::get;
 1265|  48.3k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 43.4k, False: 4.94k]
  ------------------
 1266|  48.3k|                                   : node_t::make_inner_r_e(e);
 1267|  48.3k|            auto newr     = newn->relaxed();
 1268|  48.3k|            auto newcount = count - idx;
 1269|  48.3k|            auto new_child_size = child_size - child_dropped_size;
 1270|  48.3k|            IMMER_TRY {
  ------------------
  |  |   49|  48.3k|#define IMMER_TRY try
  ------------------
 1271|  48.3k|                auto subs =
 1272|  48.3k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 43.4k, False: 4.94k]
  ------------------
 1273|  48.3k|                           : pos.towards_sub_oh(
 1274|  4.94k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  48.3k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 43.4k, False: 4.94k]
  ------------------
 1276|  43.4k|                    pos.each_left(dec_visitor{}, idx);
 1277|  48.3k|                pos.copy_sizes(
 1278|  48.3k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  48.3k|                std::copy(node->inner() + idx + 1,
 1280|  48.3k|                          node->inner() + count,
 1281|  48.3k|                          newn->inner() + 1);
 1282|  48.3k|                newn->inner()[0] = get<1>(subs);
 1283|  48.3k|                newr->d.sizes[0] = new_child_size;
 1284|  48.3k|                newr->d.count    = newcount;
 1285|  48.3k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 48.3k, False: 0]
  ------------------
 1286|  48.3k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 4.94k, False: 43.4k]
  ------------------
 1287|  4.94k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  4.94k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [True: 4.94k, Folded]
  ------------------
 1289|  4.94k|                        pos.visit(dec_visitor{});
 1290|  4.94k|                }
 1291|  48.3k|                return std::make_tuple(pos.shift(), newn);
 1292|  48.3k|            }
 1293|  48.3k|            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|  48.3k|        }
 1299|  53.3k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  2.51k|    {
 1247|  2.51k|        auto idx                = pos.subindex(first);
 1248|  2.51k|        auto count              = pos.count();
 1249|  2.51k|        auto node               = pos.node();
 1250|  2.51k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [Folded, False: 2.51k]
  |  Branch (1250:47): [True: 0, False: 0]
  ------------------
 1251|  2.51k|        auto left_size          = pos.size_before(idx);
 1252|  2.51k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  2.51k|        auto dropped_size       = first;
 1254|  2.51k|        auto child_dropped_size = dropped_size - left_size;
 1255|  2.51k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [True: 2.51k, Folded]
  |  Branch (1255:25): [True: 973, False: 1.54k]
  |  Branch (1255:45): [True: 765, False: 208]
  ------------------
 1256|    765|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1256:22): [True: 0, False: 765]
  ------------------
 1257|    765|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1258|    765|            if (mutate)
  ------------------
  |  Branch (1258:17): [True: 0, False: 765]
  ------------------
 1259|      0|                pos.visit(dec_left_visitor{}, idx);
 1260|    765|            else if (Mutating)
  ------------------
  |  Branch (1260:22): [Folded, False: 765]
  ------------------
 1261|      0|                pos.visit(dec_visitor{});
 1262|    765|            return r;
 1263|  1.75k|        } else {
 1264|  1.75k|            using std::get;
 1265|  1.75k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 0, False: 1.75k]
  ------------------
 1266|  1.75k|                                   : node_t::make_inner_r_e(e);
 1267|  1.75k|            auto newr     = newn->relaxed();
 1268|  1.75k|            auto newcount = count - idx;
 1269|  1.75k|            auto new_child_size = child_size - child_dropped_size;
 1270|  1.75k|            IMMER_TRY {
  ------------------
  |  |   49|  1.75k|#define IMMER_TRY try
  ------------------
 1271|  1.75k|                auto subs =
 1272|  1.75k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 0, False: 1.75k]
  ------------------
 1273|  1.75k|                           : pos.towards_sub_oh(
 1274|  1.75k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  1.75k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 0, False: 1.75k]
  ------------------
 1276|      0|                    pos.each_left(dec_visitor{}, idx);
 1277|  1.75k|                pos.copy_sizes(
 1278|  1.75k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  1.75k|                std::copy(node->inner() + idx + 1,
 1280|  1.75k|                          node->inner() + count,
 1281|  1.75k|                          newn->inner() + 1);
 1282|  1.75k|                newn->inner()[0] = get<1>(subs);
 1283|  1.75k|                newr->d.sizes[0] = new_child_size;
 1284|  1.75k|                newr->d.count    = newcount;
 1285|  1.75k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 1.75k, False: 0]
  ------------------
 1286|  1.75k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 1.75k, False: 0]
  ------------------
 1287|  1.75k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  1.75k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [Folded, False: 1.75k]
  ------------------
 1289|      0|                        pos.visit(dec_visitor{});
 1290|  1.75k|                }
 1291|  1.75k|                return std::make_tuple(pos.shift(), newn);
 1292|  1.75k|            }
 1293|  1.75k|            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|  1.75k|        }
 1299|  2.51k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_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): [Folded, False: 0]
  |  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: 760, False: 1.27k]
  |  Branch (1316:45): [True: 513, False: 247]
  ------------------
 1317|    513|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 513]
  ------------------
 1318|    513|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|    513|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 513]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|    513|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [Folded, False: 513]
  ------------------
 1322|      0|                pos.visit(dec_visitor{});
 1323|    513|            return r;
 1324|  1.51k|        } else {
 1325|  1.51k|            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|  1.51k|            auto newcount = count - idx;
 1330|  1.51k|            auto newn =
 1331|  1.51k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.51k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.51k|                       : node_t::make_inner_r_e(e);
 1336|  1.51k|            auto newr = newn->relaxed();
 1337|  1.51k|            IMMER_TRY {
  ------------------
  |  |   49|  1.51k|#define IMMER_TRY try
  ------------------
 1338|  1.51k|                auto subs =
 1339|  1.51k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.51k]
  ------------------
 1340|  1.51k|                           : pos.towards_sub_oh(
 1341|  1.51k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.51k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.51k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.51k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.51k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.51k, False: 0]
  ------------------
 1346|  1.51k|                pos.copy_sizes(
 1347|  1.51k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.51k|                newr->d.count    = newcount;
 1349|  1.51k|                newn->inner()[0] = get<1>(subs);
 1350|  1.51k|                std::copy(node->inner() + idx + 1,
 1351|  1.51k|                          node->inner() + count,
 1352|  1.51k|                          newn->inner() + 1);
 1353|  1.51k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.51k, False: 0]
  ------------------
 1354|  1.51k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.51k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 1.51k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  1.51k|                }
 1358|  1.51k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.51k|            }
 1360|  1.51k|            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|  1.51k|        }
 1373|  2.03k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|    627|    {
 1304|    627|        auto idx    = pos.subindex(first);
 1305|    627|        auto count  = pos.count();
 1306|    627|        auto node   = pos.node();
 1307|    627|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 627]
  ------------------
 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): [Folded, False: 0]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|    627|        auto left_size          = pos.size_before(idx);
 1313|    627|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|    627|        auto dropped_size       = first;
 1315|    627|        auto child_dropped_size = dropped_size - left_size;
 1316|    627|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 627, Folded]
  |  Branch (1316:25): [True: 197, False: 430]
  |  Branch (1316:45): [True: 0, False: 197]
  ------------------
 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|    627|        } else {
 1325|    627|            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|    627|            auto newcount = count - idx;
 1330|    627|            auto newn =
 1331|    627|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 627]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|    627|                       : node_t::make_inner_r_e(e);
 1336|    627|            auto newr = newn->relaxed();
 1337|    627|            IMMER_TRY {
  ------------------
  |  |   49|    627|#define IMMER_TRY try
  ------------------
 1338|    627|                auto subs =
 1339|    627|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 627]
  ------------------
 1340|    627|                           : pos.towards_sub_oh(
 1341|    627|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|    627|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 627]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|    627|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|    627|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 627, False: 0]
  ------------------
 1346|    627|                pos.copy_sizes(
 1347|    627|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|    627|                newr->d.count    = newcount;
 1349|    627|                newn->inner()[0] = get<1>(subs);
 1350|    627|                std::copy(node->inner() + idx + 1,
 1351|    627|                          node->inner() + count,
 1352|    627|                          newn->inner() + 1);
 1353|    627|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 627, False: 0]
  ------------------
 1354|    627|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|    627|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 627]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|    627|                }
 1358|    627|                return std::make_tuple(pos.shift(), newn);
 1359|    627|            }
 1360|    627|            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|    627|        }
 1373|    627|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_13full_leaf_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  8.17k|    {
 1378|  8.17k|        auto node   = pos.node();
 1379|  8.17k|        auto idx    = pos.index(first);
 1380|  8.17k|        auto count  = pos.count();
 1381|  8.17k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [Folded, False: 8.17k]
  ------------------
 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|  8.17k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 0, False: 8.17k]
  ------------------
 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|  8.17k|        } else {
 1391|  8.17k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  8.17k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [Folded, False: 8.17k]
  ------------------
 1393|      0|                pos.visit(dec_visitor{});
 1394|  8.17k|            return std::make_tuple(0, newn);
 1395|  8.17k|        }
 1396|  8.17k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_8full_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.90k|    {
 1304|  1.90k|        auto idx    = pos.subindex(first);
 1305|  1.90k|        auto count  = pos.count();
 1306|  1.90k|        auto node   = pos.node();
 1307|  1.90k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 1.90k]
  ------------------
 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): [Folded, False: 0]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  1.90k|        auto left_size          = pos.size_before(idx);
 1313|  1.90k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.90k|        auto dropped_size       = first;
 1315|  1.90k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.90k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 1.90k]
  |  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|  1.90k|        } else {
 1325|  1.90k|            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|  1.90k|            auto newcount = count - idx;
 1330|  1.90k|            auto newn =
 1331|  1.90k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.90k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.90k|                       : node_t::make_inner_r_e(e);
 1336|  1.90k|            auto newr = newn->relaxed();
 1337|  1.90k|            IMMER_TRY {
  ------------------
  |  |   49|  1.90k|#define IMMER_TRY try
  ------------------
 1338|  1.90k|                auto subs =
 1339|  1.90k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.90k]
  ------------------
 1340|  1.90k|                           : pos.towards_sub_oh(
 1341|  1.90k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.90k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.90k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.90k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.90k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.90k, False: 0]
  ------------------
 1346|  1.90k|                pos.copy_sizes(
 1347|  1.90k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.90k|                newr->d.count    = newcount;
 1349|  1.90k|                newn->inner()[0] = get<1>(subs);
 1350|  1.90k|                std::copy(node->inner() + idx + 1,
 1351|  1.90k|                          node->inner() + count,
 1352|  1.90k|                          newn->inner() + 1);
 1353|  1.90k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.90k, False: 0]
  ------------------
 1354|  1.90k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.90k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 1.90k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  1.90k|                }
 1358|  1.90k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.90k|            }
 1360|  1.90k|            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|  1.90k|        }
 1373|  1.90k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  4.36k|    {
 1378|  4.36k|        auto node   = pos.node();
 1379|  4.36k|        auto idx    = pos.index(first);
 1380|  4.36k|        auto count  = pos.count();
 1381|  4.36k|        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|  4.36k|                      node->can_mutate(e);
  ------------------
  |  Branch (1383:23): [True: 1.84k, False: 2.51k]
  ------------------
 1384|  4.36k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 1.84k, False: 2.51k]
  ------------------
 1385|  1.84k|            auto data     = node->leaf();
 1386|  1.84k|            auto newcount = count - idx;
 1387|  1.84k|            std::move(data + idx, data + count, data);
 1388|  1.84k|            detail::destroy_n(data + newcount, idx);
 1389|  1.84k|            return std::make_tuple(0, node);
 1390|  2.51k|        } else {
 1391|  2.51k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  2.51k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [True: 2.51k, Folded]
  ------------------
 1393|  2.51k|                pos.visit(dec_visitor{});
 1394|  2.51k|            return std::make_tuple(0, newn);
 1395|  2.51k|        }
 1396|  4.36k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  1.54k|    {
 1304|  1.54k|        auto idx    = pos.subindex(first);
 1305|  1.54k|        auto count  = pos.count();
 1306|  1.54k|        auto node   = pos.node();
 1307|  1.54k|        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|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [Folded, False: 0]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  1.54k|        auto left_size          = pos.size_before(idx);
 1313|  1.54k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  1.54k|        auto dropped_size       = first;
 1315|  1.54k|        auto child_dropped_size = dropped_size - left_size;
 1316|  1.54k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 1.54k]
  |  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|  1.54k|        } else {
 1325|  1.54k|            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|  1.54k|            auto newcount = count - idx;
 1330|  1.54k|            auto newn =
 1331|  1.54k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.54k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.54k|                       : node_t::make_inner_r_e(e);
 1336|  1.54k|            auto newr = newn->relaxed();
 1337|  1.54k|            IMMER_TRY {
  ------------------
  |  |   49|  1.54k|#define IMMER_TRY try
  ------------------
 1338|  1.54k|                auto subs =
 1339|  1.54k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.54k]
  ------------------
 1340|  1.54k|                           : pos.towards_sub_oh(
 1341|  1.54k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.54k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.54k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.54k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.54k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.54k, False: 0]
  ------------------
 1346|  1.54k|                pos.copy_sizes(
 1347|  1.54k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.54k|                newr->d.count    = newcount;
 1349|  1.54k|                newn->inner()[0] = get<1>(subs);
 1350|  1.54k|                std::copy(node->inner() + idx + 1,
 1351|  1.54k|                          node->inner() + count,
 1352|  1.54k|                          newn->inner() + 1);
 1353|  1.54k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.54k, False: 0]
  ------------------
 1354|  1.54k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.54k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 1.54k, Folded]
  ------------------
 1356|  1.54k|                        pos.visit(dec_visitor{});
 1357|  1.54k|                }
 1358|  1.54k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.54k|            }
 1360|  1.54k|            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|  1.54k|        }
 1373|  1.54k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE10visit_leafIRNS1_12leaf_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1377|  41.4k|    {
 1378|  41.4k|        auto node   = pos.node();
 1379|  41.4k|        auto idx    = pos.index(first);
 1380|  41.4k|        auto count  = pos.count();
 1381|  41.4k|        auto mutate = Mutating &&
  ------------------
  |  Branch (1381:23): [Folded, False: 41.4k]
  ------------------
 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|  41.4k|        if (mutate) {
  ------------------
  |  Branch (1384:13): [True: 0, False: 41.4k]
  ------------------
 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|  41.4k|        } else {
 1391|  41.4k|            auto newn = node_t::copy_leaf_e(e, node, idx, count);
 1392|  41.4k|            if (Mutating)
  ------------------
  |  Branch (1392:17): [Folded, False: 41.4k]
  ------------------
 1393|      0|                pos.visit(dec_visitor{});
 1394|  41.4k|            return std::make_tuple(0, newn);
 1395|  41.4k|        }
 1396|  41.4k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  2.74k|    {
 1304|  2.74k|        auto idx    = pos.subindex(first);
 1305|  2.74k|        auto count  = pos.count();
 1306|  2.74k|        auto node   = pos.node();
 1307|  2.74k|        auto mutate = Mutating
  ------------------
  |  Branch (1307:23): [Folded, False: 2.74k]
  ------------------
 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): [Folded, False: 0]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  2.74k|        auto left_size          = pos.size_before(idx);
 1313|  2.74k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  2.74k|        auto dropped_size       = first;
 1315|  2.74k|        auto child_dropped_size = dropped_size - left_size;
 1316|  2.74k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [Folded, False: 2.74k]
  |  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|  2.74k|        } else {
 1325|  2.74k|            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|  2.74k|            auto newcount = count - idx;
 1330|  2.74k|            auto newn =
 1331|  2.74k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 2.74k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  2.74k|                       : node_t::make_inner_r_e(e);
 1336|  2.74k|            auto newr = newn->relaxed();
 1337|  2.74k|            IMMER_TRY {
  ------------------
  |  |   49|  2.74k|#define IMMER_TRY try
  ------------------
 1338|  2.74k|                auto subs =
 1339|  2.74k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 2.74k]
  ------------------
 1340|  2.74k|                           : pos.towards_sub_oh(
 1341|  2.74k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  2.74k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 2.74k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  2.74k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  2.74k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 2.74k, False: 0]
  ------------------
 1346|  2.74k|                pos.copy_sizes(
 1347|  2.74k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  2.74k|                newr->d.count    = newcount;
 1349|  2.74k|                newn->inner()[0] = get<1>(subs);
 1350|  2.74k|                std::copy(node->inner() + idx + 1,
 1351|  2.74k|                          node->inner() + count,
 1352|  2.74k|                          newn->inner() + 1);
 1353|  2.74k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 2.74k, False: 0]
  ------------------
 1354|  2.74k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  2.74k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [Folded, False: 2.74k]
  ------------------
 1356|      0|                        pos.visit(dec_visitor{});
 1357|  2.74k|                }
 1358|  2.74k|                return std::make_tuple(pos.shift(), newn);
 1359|  2.74k|            }
 1360|  2.74k|            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|  2.74k|        }
 1373|  2.74k|    }
_ZN5immer6detail4rbts16dec_left_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEEvOT_j:
 1198|  1.93k|    {
 1199|  1.93k|        using node_t = node_type<Pos>;
 1200|  1.93k|        auto node    = p.node();
 1201|  1.93k|        if (node->dec()) {
  ------------------
  |  Branch (1201:13): [True: 1.93k, False: 0]
  ------------------
 1202|  1.93k|            p.each_left(dec_t{}, idx);
 1203|  1.93k|            node_t::delete_inner_r(node, p.count());
 1204|  1.93k|        }
 1205|  1.93k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb1EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|   172k|    {
 1247|   172k|        auto idx                = pos.subindex(first);
 1248|   172k|        auto count              = pos.count();
 1249|   172k|        auto node               = pos.node();
 1250|   172k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [True: 172k, Folded]
  |  Branch (1250:47): [True: 135k, False: 37.5k]
  ------------------
 1251|   172k|        auto left_size          = pos.size_before(idx);
 1252|   172k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|   172k|        auto dropped_size       = first;
 1254|   172k|        auto child_dropped_size = dropped_size - left_size;
 1255|   172k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [Folded, False: 172k]
  |  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|   172k|        } else {
 1264|   172k|            using std::get;
 1265|   172k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 135k, False: 37.5k]
  ------------------
 1266|   172k|                                   : node_t::make_inner_r_e(e);
 1267|   172k|            auto newr     = newn->relaxed();
 1268|   172k|            auto newcount = count - idx;
 1269|   172k|            auto new_child_size = child_size - child_dropped_size;
 1270|   172k|            IMMER_TRY {
  ------------------
  |  |   49|   172k|#define IMMER_TRY try
  ------------------
 1271|   172k|                auto subs =
 1272|   172k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 135k, False: 37.5k]
  ------------------
 1273|   172k|                           : pos.towards_sub_oh(
 1274|  37.5k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|   172k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 135k, False: 37.5k]
  ------------------
 1276|   135k|                    pos.each_left(dec_visitor{}, idx);
 1277|   172k|                pos.copy_sizes(
 1278|   172k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|   172k|                std::copy(node->inner() + idx + 1,
 1280|   172k|                          node->inner() + count,
 1281|   172k|                          newn->inner() + 1);
 1282|   172k|                newn->inner()[0] = get<1>(subs);
 1283|   172k|                newr->d.sizes[0] = new_child_size;
 1284|   172k|                newr->d.count    = newcount;
 1285|   172k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 172k, False: 0]
  ------------------
 1286|   172k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 37.5k, False: 135k]
  ------------------
 1287|  37.5k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  37.5k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [True: 37.5k, Folded]
  ------------------
 1289|  37.5k|                        pos.visit(dec_visitor{});
 1290|  37.5k|                }
 1291|   172k|                return std::make_tuple(pos.shift(), newn);
 1292|   172k|            }
 1293|   172k|            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|   172k|        }
 1299|   172k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0ELb0EE13visit_relaxedIRNS1_11relaxed_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1246|  48.6k|    {
 1247|  48.6k|        auto idx                = pos.subindex(first);
 1248|  48.6k|        auto count              = pos.count();
 1249|  48.6k|        auto node               = pos.node();
 1250|  48.6k|        auto mutate             = Mutating && node->can_mutate(e);
  ------------------
  |  Branch (1250:35): [Folded, False: 48.6k]
  |  Branch (1250:47): [True: 0, False: 0]
  ------------------
 1251|  48.6k|        auto left_size          = pos.size_before(idx);
 1252|  48.6k|        auto child_size         = pos.size_sbh(idx, left_size);
 1253|  48.6k|        auto dropped_size       = first;
 1254|  48.6k|        auto child_dropped_size = dropped_size - left_size;
 1255|  48.6k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1255:13): [Folded, False: 48.6k]
  |  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|  48.6k|        } else {
 1264|  48.6k|            using std::get;
 1265|  48.6k|            auto newn     = mutate ? (node->ensure_mutable_relaxed(e), node)
  ------------------
  |  Branch (1265:29): [True: 0, False: 48.6k]
  ------------------
 1266|  48.6k|                                   : node_t::make_inner_r_e(e);
 1267|  48.6k|            auto newr     = newn->relaxed();
 1268|  48.6k|            auto newcount = count - idx;
 1269|  48.6k|            auto new_child_size = child_size - child_dropped_size;
 1270|  48.6k|            IMMER_TRY {
  ------------------
  |  |   49|  48.6k|#define IMMER_TRY try
  ------------------
 1271|  48.6k|                auto subs =
 1272|  48.6k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1272:21): [True: 0, False: 48.6k]
  ------------------
 1273|  48.6k|                           : pos.towards_sub_oh(
 1274|  48.6k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1275|  48.6k|                if (mutate)
  ------------------
  |  Branch (1275:21): [True: 0, False: 48.6k]
  ------------------
 1276|      0|                    pos.each_left(dec_visitor{}, idx);
 1277|  48.6k|                pos.copy_sizes(
 1278|  48.6k|                    idx + 1, newcount - 1, new_child_size, newr->d.sizes + 1);
 1279|  48.6k|                std::copy(node->inner() + idx + 1,
 1280|  48.6k|                          node->inner() + count,
 1281|  48.6k|                          newn->inner() + 1);
 1282|  48.6k|                newn->inner()[0] = get<1>(subs);
 1283|  48.6k|                newr->d.sizes[0] = new_child_size;
 1284|  48.6k|                newr->d.count    = newcount;
 1285|  48.6k|                assert(new_child_size);
  ------------------
  |  Branch (1285:17): [True: 48.6k, False: 0]
  ------------------
 1286|  48.6k|                if (!mutate) {
  ------------------
  |  Branch (1286:21): [True: 48.6k, False: 0]
  ------------------
 1287|  48.6k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1288|  48.6k|                    if (Mutating)
  ------------------
  |  Branch (1288:25): [Folded, False: 48.6k]
  ------------------
 1289|      0|                        pos.visit(dec_visitor{});
 1290|  48.6k|                }
 1291|  48.6k|                return std::make_tuple(pos.shift(), newn);
 1292|  48.6k|            }
 1293|  48.6k|            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|  48.6k|        }
 1299|  48.6k|    }
_ZN5immer6detail4rbts22slice_left_mut_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1ELb1EE13visit_regularIRNS1_15regular_sub_posISC_EEEENSt3__15tupleIJjPSC_EEEOT_mNSA_5applyIS7_E4type4editE:
 1303|  2.58k|    {
 1304|  2.58k|        auto idx    = pos.subindex(first);
 1305|  2.58k|        auto count  = pos.count();
 1306|  2.58k|        auto node   = pos.node();
 1307|  2.58k|        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|      0|                      && !node_t::embed_relaxed && node->can_mutate(e);
  ------------------
  |  Branch (1311:26): [Folded, False: 0]
  |  Branch (1311:52): [True: 0, False: 0]
  ------------------
 1312|  2.58k|        auto left_size          = pos.size_before(idx);
 1313|  2.58k|        auto child_size         = pos.size_sbh(idx, left_size);
 1314|  2.58k|        auto dropped_size       = first;
 1315|  2.58k|        auto child_dropped_size = dropped_size - left_size;
 1316|  2.58k|        if (Collapse && pos.shift() > BL && idx == pos.count() - 1) {
  ------------------
  |  Branch (1316:13): [True: 2.58k, Folded]
  |  Branch (1316:25): [True: 1.74k, False: 840]
  |  Branch (1316:45): [True: 847, False: 896]
  ------------------
 1317|    847|            auto r = mutate ? pos.towards_sub_oh(this_t{}, first, idx, e)
  ------------------
  |  Branch (1317:22): [True: 0, False: 847]
  ------------------
 1318|    847|                            : pos.towards_sub_oh(no_mut_t{}, first, idx, e);
 1319|    847|            if (mutate)
  ------------------
  |  Branch (1319:17): [True: 0, False: 847]
  ------------------
 1320|      0|                pos.visit(dec_left_visitor{}, idx);
 1321|    847|            else if (Mutating)
  ------------------
  |  Branch (1321:22): [True: 847, Folded]
  ------------------
 1322|    847|                pos.visit(dec_visitor{});
 1323|    847|            return r;
 1324|  1.73k|        } else {
 1325|  1.73k|            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|  1.73k|            auto newcount = count - idx;
 1330|  1.73k|            auto newn =
 1331|  1.73k|                mutate ? (node->impl.d.data.inner.relaxed = new (
  ------------------
  |  Branch (1331:17): [True: 0, False: 1.73k]
  ------------------
 1332|      0|                              node_t::heap::allocate(node_t::max_sizeof_relaxed,
 1333|      0|                                                     norefs_tag{})) relaxed_t,
 1334|      0|                          node)
 1335|  1.73k|                       : node_t::make_inner_r_e(e);
 1336|  1.73k|            auto newr = newn->relaxed();
 1337|  1.73k|            IMMER_TRY {
  ------------------
  |  |   49|  1.73k|#define IMMER_TRY try
  ------------------
 1338|  1.73k|                auto subs =
 1339|  1.73k|                    mutate ? pos.towards_sub_oh(no_collapse_t{}, first, idx, e)
  ------------------
  |  Branch (1339:21): [True: 0, False: 1.73k]
  ------------------
 1340|  1.73k|                           : pos.towards_sub_oh(
 1341|  1.73k|                                 no_collapse_no_mut_t{}, first, idx, e);
 1342|  1.73k|                if (mutate)
  ------------------
  |  Branch (1342:21): [True: 0, False: 1.73k]
  ------------------
 1343|      0|                    pos.each_left(dec_visitor{}, idx);
 1344|  1.73k|                newr->d.sizes[0] = child_size - child_dropped_size;
 1345|  1.73k|                assert(newr->d.sizes[0]);
  ------------------
  |  Branch (1345:17): [True: 1.73k, False: 0]
  ------------------
 1346|  1.73k|                pos.copy_sizes(
 1347|  1.73k|                    idx + 1, newcount - 1, newr->d.sizes[0], newr->d.sizes + 1);
 1348|  1.73k|                newr->d.count    = newcount;
 1349|  1.73k|                newn->inner()[0] = get<1>(subs);
 1350|  1.73k|                std::copy(node->inner() + idx + 1,
 1351|  1.73k|                          node->inner() + count,
 1352|  1.73k|                          newn->inner() + 1);
 1353|  1.73k|                if (!mutate) {
  ------------------
  |  Branch (1353:21): [True: 1.73k, False: 0]
  ------------------
 1354|  1.73k|                    node_t::inc_nodes(newn->inner() + 1, newcount - 1);
 1355|  1.73k|                    if (Mutating)
  ------------------
  |  Branch (1355:25): [True: 1.73k, Folded]
  ------------------
 1356|  1.73k|                        pos.visit(dec_visitor{});
 1357|  1.73k|                }
 1358|  1.73k|                return std::make_tuple(pos.shift(), newn);
 1359|  1.73k|            }
 1360|  1.73k|            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|  1.73k|        }
 1373|  2.58k|    }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|  13.4k|        {
  350|  13.4k|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 13.4k, False: 0]
  ------------------
  351|  13.4k|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 12.4k, False: 1.00k]
  ------------------
  352|  13.4k|                       ? visit_maybe_relaxed_sub(rootl,
  353|  12.4k|                                                 shiftl,
  354|  12.4k|                                                 sizel,
  355|  12.4k|                                                 this_t{},
  356|  12.4k|                                                 posr,
  357|  12.4k|                                                 first,
  358|  12.4k|                                                 size_t{})
  359|  13.4k|                       : posr.first_sub_inner(
  360|  1.00k|                             rrb{}, first, rootl, shiftl, sizel);
  361|  13.4k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  34.8k|    {
  383|  34.8k|        auto nl = posl.node();
  384|  34.8k|        auto nr = posr.node();
  385|  34.8k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 11.6k, False: 23.1k]
  ------------------
  386|  11.6k|            return true;
  387|  23.1k|        auto cl = posl.count();
  388|  23.1k|        auto cr = posr.count();
  389|  23.1k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 23.1k, False: 0]
  ------------------
  390|  23.1k|        auto sbr = size_t{};
  391|  23.1k|        auto i   = count_t{};
  392|  23.1k|        auto j   = count_t{};
  393|   124k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 111k, False: 13.1k]
  ------------------
  394|   111k|            auto sbl = posl.size_before(i);
  395|   197k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 178k, False: 19.7k]
  |  Branch (395:34): [True: 86.4k, False: 91.6k]
  ------------------
  396|  86.4k|                ;
  397|   111k|            auto res =
  398|   111k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 55.6k, False: 55.6k]
  ------------------
  399|   111k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|   111k|                    : posl.nth_sub(i,
  401|  55.6k|                                   for_each_chunk_p_visitor{},
  402|  55.6k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|   111k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 10.0k, False: 101k]
  ------------------
  404|  10.0k|                return false;
  405|   111k|        }
  406|  13.1k|        return true;
  407|  23.1k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  25.8k|        {
  337|  25.8k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  25.8k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  26.4k|    {
  428|  26.4k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 16.8k, False: 9.62k]
  ------------------
  429|  16.8k|            return true;
  430|  9.62k|        auto cl = posl.count();
  431|  9.62k|        auto cr = posr.count();
  432|  9.62k|        auto mp = std::min(cl, cr);
  433|  9.62k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 8.18k, False: 1.43k]
  ------------------
  434|  9.62k|                          posl.node()->leaf() + mp,
  435|  9.62k|                          posr.node()->leaf()) &&
  436|  8.18k|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 7.71k, False: 475]
  ------------------
  437|  8.18k|                          posl.node()->leaf() + posl.count(),
  438|  8.18k|                          first + (idx + mp));
  439|  26.4k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESH_RNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  25.4k|        {
  330|  25.4k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  25.4k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIX12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  412|  4.32k|    {
  413|  4.32k|        return this_t::visit_relaxed(posl, posr, first, idx);
  414|  4.32k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  4.32k|    {
  383|  4.32k|        auto nl = posl.node();
  384|  4.32k|        auto nr = posr.node();
  385|  4.32k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 4.32k]
  ------------------
  386|      0|            return true;
  387|  4.32k|        auto cl = posl.count();
  388|  4.32k|        auto cr = posr.count();
  389|  4.32k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 4.32k, False: 0]
  ------------------
  390|  4.32k|        auto sbr = size_t{};
  391|  4.32k|        auto i   = count_t{};
  392|  4.32k|        auto j   = count_t{};
  393|  15.0k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 13.0k, False: 1.93k]
  ------------------
  394|  13.0k|            auto sbl = posl.size_before(i);
  395|  21.9k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 18.2k, False: 3.69k]
  |  Branch (395:34): [True: 8.84k, False: 9.38k]
  ------------------
  396|  8.84k|                ;
  397|  13.0k|            auto res =
  398|  13.0k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 8.12k, False: 4.96k]
  ------------------
  399|  13.0k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  13.0k|                    : posl.nth_sub(i,
  401|  4.96k|                                   for_each_chunk_p_visitor{},
  402|  4.96k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  13.0k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 2.38k, False: 10.6k]
  ------------------
  404|  2.38k|                return false;
  405|  13.0k|        }
  406|  1.93k|        return true;
  407|  4.32k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  5.13k|        {
  337|  5.13k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  5.13k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_12leaf_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  11.7k|    {
  428|  11.7k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 7.94k, False: 3.80k]
  ------------------
  429|  7.94k|            return true;
  430|  3.80k|        auto cl = posl.count();
  431|  3.80k|        auto cr = posr.count();
  432|  3.80k|        auto mp = std::min(cl, cr);
  433|  3.80k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 3.45k, False: 350]
  ------------------
  434|  3.80k|                          posl.node()->leaf() + mp,
  435|  3.80k|                          posr.node()->leaf()) &&
  436|  3.45k|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 3.13k, False: 321]
  ------------------
  437|  3.45k|                          posl.node()->leaf() + posl.count(),
  438|  3.45k|                          first + (idx + mp));
  439|  11.7k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  2.11k|        {
  330|  2.11k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  2.11k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIX12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  412|  2.24k|    {
  413|  2.24k|        return this_t::visit_relaxed(posl, posr, first, idx);
  414|  2.24k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  2.24k|    {
  383|  2.24k|        auto nl = posl.node();
  384|  2.24k|        auto nr = posr.node();
  385|  2.24k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 2.24k]
  ------------------
  386|      0|            return true;
  387|  2.24k|        auto cl = posl.count();
  388|  2.24k|        auto cr = posr.count();
  389|  2.24k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 2.24k, False: 0]
  ------------------
  390|  2.24k|        auto sbr = size_t{};
  391|  2.24k|        auto i   = count_t{};
  392|  2.24k|        auto j   = count_t{};
  393|  15.8k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 14.3k, False: 1.45k]
  ------------------
  394|  14.3k|            auto sbl = posl.size_before(i);
  395|  25.4k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 21.9k, False: 3.49k]
  |  Branch (395:34): [True: 11.0k, False: 10.8k]
  ------------------
  396|  11.0k|                ;
  397|  14.3k|            auto res =
  398|  14.3k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 8.56k, False: 5.79k]
  ------------------
  399|  14.3k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  14.3k|                    : posl.nth_sub(i,
  401|  5.79k|                                   for_each_chunk_p_visitor{},
  402|  5.79k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  14.3k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 785, False: 13.5k]
  ------------------
  404|    785|                return false;
  405|  14.3k|        }
  406|  1.45k|        return true;
  407|  2.24k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  7.27k|        {
  337|  7.27k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  7.27k|        }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    447|        {
  330|    447|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    447|        }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    844|        {
  330|    844|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    844|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  419|  1.71k|    {
  420|  1.71k|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 1.71k, False: 0]
  ------------------
  421|  1.71k|                   ? this_t::visit_regular(posl, posr.node())
  422|  1.71k|                   : this_t::visit_regular(posr, posl.node());
  423|  1.71k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  12.4k|    {
  444|  12.4k|        auto node = pos.node();
  445|  12.4k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 8.77k, False: 3.69k]
  |  Branch (445:33): [True: 2.14k, False: 1.54k]
  ------------------
  446|  12.4k|    }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  24.3k|    {
  451|  24.3k|        auto node = pos.node();
  452|  24.3k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 18.6k, False: 5.68k]
  |  Branch (452:33): [True: 3.20k, False: 2.48k]
  ------------------
  453|  5.68k|                                           node->leaf() + pos.count(),
  454|  5.68k|                                           other->leaf());
  455|  24.3k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  11.8k|    {
  444|  11.8k|        auto node = pos.node();
  445|  11.8k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 6.42k, False: 5.41k]
  |  Branch (445:33): [True: 2.29k, False: 3.11k]
  ------------------
  446|  11.8k|    }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  3.03k|    {
  451|  3.03k|        auto node = pos.node();
  452|  3.03k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 1.51k, False: 1.51k]
  |  Branch (452:33): [True: 497, False: 1.02k]
  ------------------
  453|  1.51k|                                           node->leaf() + pos.count(),
  454|  1.51k|                                           other->leaf());
  455|  3.03k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  443|  3.16k|    {
  444|  3.16k|        auto node = pos.node();
  445|  3.16k|        return node == other || pos.each_pred_zip(this_t{}, other);
  ------------------
  |  Branch (445:16): [True: 285, False: 2.87k]
  |  Branch (445:33): [True: 1.54k, False: 1.32k]
  ------------------
  446|  3.16k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|   180k|    {
  113|   180k|        auto data = as_const(pos.node()->leaf());
  114|   180k|        return fn(data, data + pos.count());
  115|   180k|    }
_ZZN5immer6detail4rbts14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaOT_ENUlSE_T0_E_clIPKiSK_EEDaSE_SG_:
  367|  1.13M|        return [iter](auto f, auto e) mutable {
  368|  1.13M|            if (f == &*iter) {
  ------------------
  |  Branch (368:17): [True: 80.0k, False: 1.05M]
  ------------------
  369|  80.0k|                iter += e - f;
  370|  80.0k|                return true;
  371|  80.0k|            }
  372|  8.96M|            for (; f != e; ++f, ++iter)
  ------------------
  |  Branch (372:20): [True: 7.91M, False: 1.05M]
  ------------------
  373|  7.91M|                if (*f != *iter)
  ------------------
  |  Branch (373:21): [True: 5.00k, False: 7.90M]
  ------------------
  374|  5.00k|                    return false;
  375|  1.05M|            return true;
  376|  1.05M|        };
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|  4.39M|    {
   54|  4.39M|        return pos.towards(this_t{}, idx);
   55|  4.39M|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|   993k|    {
   60|   993k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|   993k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|   212k|    {
   54|   212k|        return pos.towards(this_t{}, idx);
   55|   212k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|   195k|    {
   60|   195k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|   195k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|   220k|    {
   54|   220k|        return pos.towards(this_t{}, idx);
   55|   220k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   59|  17.0k|    {
   60|  17.0k|        return std::make_tuple(pos.node()->leaf(), pos.index(idx), pos.count());
   61|  17.0k|    }
_ZN5immer6detail4rbts18region_for_visitorIiE11visit_innerIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEEENSt3__15tupleIJPimmEEEOT_m:
   53|  26.0k|    {
   54|  26.0k|        return pos.towards(this_t{}, idx);
   55|  26.0k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  15.2k|    {
  107|  15.2k|        return pos.each_pred(this_t{}, fn);
  108|  15.2k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESH_RNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|    869|        {
  330|    869|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|    869|        }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESG_RNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSM_OT1_m:
  419|  9.68k|    {
  420|  9.68k|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 9.68k, False: 0]
  ------------------
  421|  9.68k|                   ? this_t::visit_regular(posl, posr.node())
  422|  9.68k|                   : this_t::visit_regular(posr, posl.node());
  423|  9.68k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|   944k|    {
  113|   944k|        auto data = as_const(pos.node()->leaf());
  114|   944k|        return fn(data, data + pos.count());
  115|   944k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  12.9k|    {
  107|  12.9k|        return pos.each_pred(this_t{}, fn);
  108|  12.9k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor10visit_leafIRNS1_8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  112|  11.1k|    {
  113|  11.1k|        auto data = as_const(pos.node()->leaf());
  114|  11.1k|        return fn(data, data + pos.count());
  115|  11.1k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|  3.36k|    {
  107|  3.36k|        return pos.each_pred(this_t{}, fn);
  108|  3.36k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  4.95k|        {
  330|  4.95k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  4.95k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_15regular_sub_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  3.82k|    {
  383|  3.82k|        auto nl = posl.node();
  384|  3.82k|        auto nr = posr.node();
  385|  3.82k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 3.82k]
  ------------------
  386|      0|            return true;
  387|  3.82k|        auto cl = posl.count();
  388|  3.82k|        auto cr = posr.count();
  389|  3.82k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 3.82k, False: 0]
  ------------------
  390|  3.82k|        auto sbr = size_t{};
  391|  3.82k|        auto i   = count_t{};
  392|  3.82k|        auto j   = count_t{};
  393|  16.6k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 14.7k, False: 1.86k]
  ------------------
  394|  14.7k|            auto sbl = posl.size_before(i);
  395|  24.1k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 21.0k, False: 3.16k]
  |  Branch (395:34): [True: 9.44k, False: 11.5k]
  ------------------
  396|  9.44k|                ;
  397|  14.7k|            auto res =
  398|  14.7k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 8.38k, False: 6.36k]
  ------------------
  399|  14.7k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  14.7k|                    : posl.nth_sub(i,
  401|  6.36k|                                   for_each_chunk_p_visitor{},
  402|  6.36k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  14.7k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 1.96k, False: 12.7k]
  ------------------
  404|  1.96k|                return false;
  405|  14.7k|        }
  406|  1.86k|        return true;
  407|  3.82k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t10visit_leafIRNS1_13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  336|  10.8k|        {
  337|  10.8k|            return posl.nth_sub_leaf(i, this_t{}, posr, first, idx);
  338|  10.8k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_13full_leaf_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  427|  10.8k|    {
  428|  10.8k|        if (posl.node() == posr.node())
  ------------------
  |  Branch (428:13): [True: 7.91k, False: 2.95k]
  ------------------
  429|  7.91k|            return true;
  430|  2.95k|        auto cl = posl.count();
  431|  2.95k|        auto cr = posr.count();
  432|  2.95k|        auto mp = std::min(cl, cr);
  433|  2.95k|        return std::equal(posl.node()->leaf(),
  ------------------
  |  Branch (433:16): [True: 2.56k, False: 388]
  ------------------
  434|  2.95k|                          posl.node()->leaf() + mp,
  435|  2.95k|                          posr.node()->leaf()) &&
  436|  2.56k|               std::equal(posl.node()->leaf() + mp,
  ------------------
  |  Branch (436:16): [True: 2.56k, False: 0]
  ------------------
  437|  2.56k|                          posl.node()->leaf() + posl.count(),
  438|  2.56k|                          first + (idx + mp));
  439|  10.8k|    }
_ZN5immer6detail4rbts14equals_visitor10this_aux_t11visit_innerIRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_11relaxed_posISF_EERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEEEEbOT_jOT0_OT1_m:
  329|  3.81k|        {
  330|  3.81k|            return posl.nth_sub(i, this_t{}, posr, first, idx);
  331|  3.81k|        }
_ZN5immer6detail4rbts14equals_visitor13visit_relaxedIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEbOT_OT0_OT1_m:
  382|  1.65k|    {
  383|  1.65k|        auto nl = posl.node();
  384|  1.65k|        auto nr = posr.node();
  385|  1.65k|        if (nl == nr)
  ------------------
  |  Branch (385:13): [True: 0, False: 1.65k]
  ------------------
  386|      0|            return true;
  387|  1.65k|        auto cl = posl.count();
  388|  1.65k|        auto cr = posr.count();
  389|  1.65k|        assert(cr > 0);
  ------------------
  |  Branch (389:9): [True: 1.65k, False: 0]
  ------------------
  390|  1.65k|        auto sbr = size_t{};
  391|  1.65k|        auto i   = count_t{};
  392|  1.65k|        auto j   = count_t{};
  393|  12.3k|        for (; i < cl; ++i) {
  ------------------
  |  Branch (393:16): [True: 11.2k, False: 1.10k]
  ------------------
  394|  11.2k|            auto sbl = posl.size_before(i);
  395|  20.4k|            for (; j + 1 < cr && (sbr = posr.size_before(j)) < sbl; ++j)
  ------------------
  |  Branch (395:20): [True: 19.5k, False: 839]
  |  Branch (395:34): [True: 9.15k, False: 10.4k]
  ------------------
  396|  9.15k|                ;
  397|  11.2k|            auto res =
  398|  11.2k|                sbl == sbr
  ------------------
  |  Branch (398:17): [True: 6.85k, False: 4.39k]
  ------------------
  399|  11.2k|                    ? posr.nth_sub(j, this_aux_t{}, i, posl, first, idx + sbl)
  400|  11.2k|                    : posl.nth_sub(i,
  401|  4.39k|                                   for_each_chunk_p_visitor{},
  402|  4.39k|                                   this_t::equal_chunk_p(first + (idx + sbl)));
  403|  11.2k|            if (!res)
  ------------------
  |  Branch (403:17): [True: 546, False: 10.7k]
  ------------------
  404|    546|                return false;
  405|  11.2k|        }
  406|  1.10k|        return true;
  407|  1.65k|    }
_ZN5immer6detail4rbts14equals_visitor13visit_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_8full_posISE_EERNS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEENSt3__19enable_ifIXnt12is_relaxed_vIT0_EEbE4typeEOT_OSP_OT1_m:
  419|  2.15k|    {
  420|  2.15k|        return posl.count() >= posr.count()
  ------------------
  |  Branch (420:16): [True: 2.15k, False: 0]
  ------------------
  421|  2.15k|                   ? this_t::visit_regular(posl, posr.node())
  422|  2.15k|                   : this_t::visit_regular(posr, posl.node());
  423|  2.15k|    }
_ZN5immer6detail4rbts24for_each_chunk_p_visitor11visit_innerIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSD_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEbSM_OSN_:
  106|   142k|    {
  107|   142k|        return pos.each_pred(this_t{}, fn);
  108|   142k|    }
_ZN5immer6detail4rbts14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaOT_:
  366|  77.2k|    {
  367|  77.2k|        return [iter](auto f, auto e) mutable {
  368|  77.2k|            if (f == &*iter) {
  369|  77.2k|                iter += e - f;
  370|  77.2k|                return true;
  371|  77.2k|            }
  372|  77.2k|            for (; f != e; ++f, ++iter)
  373|  77.2k|                if (*f != *iter)
  374|  77.2k|                    return false;
  375|  77.2k|            return true;
  376|  77.2k|        };
  377|  77.2k|    }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|  1.26k|        {
  350|  1.26k|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 1.26k, False: 0]
  ------------------
  351|  1.26k|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 1.00k, False: 261]
  ------------------
  352|  1.26k|                       ? visit_maybe_relaxed_sub(rootl,
  353|  1.00k|                                                 shiftl,
  354|  1.00k|                                                 sizel,
  355|  1.00k|                                                 this_t{},
  356|  1.00k|                                                 posr,
  357|  1.00k|                                                 first,
  358|  1.00k|                                                 size_t{})
  359|  1.26k|                       : posr.first_sub_inner(
  360|    261|                             rrb{}, first, rootl, shiftl, sizel);
  361|  1.26k|        }
_ZN5immer6detail4rbts14equals_visitor3rrb10visit_nodeIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSE_Lj3ELj3EEESF_EEbOT_OT0_PT1_jm:
  349|  8.55k|        {
  350|  8.55k|            assert(shiftl <= posr.shift());
  ------------------
  |  Branch (350:13): [True: 8.55k, False: 0]
  ------------------
  351|  8.55k|            return shiftl == posr.shift()
  ------------------
  |  Branch (351:20): [True: 8.55k, False: 0]
  ------------------
  352|  8.55k|                       ? visit_maybe_relaxed_sub(rootl,
  353|  8.55k|                                                 shiftl,
  354|  8.55k|                                                 sizel,
  355|  8.55k|                                                 this_t{},
  356|  8.55k|                                                 posr,
  357|  8.55k|                                                 first,
  358|  8.55k|                                                 size_t{})
  359|  8.55k|                       : posr.first_sub_inner(
  360|      0|                             rrb{}, first, rootl, shiftl, sizel);
  361|  8.55k|        }
_ZN5immer6detail4rbts14equals_visitor10visit_leafIRNS1_12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEESE_EEbOT_PT0_:
  450|  6.91k|    {
  451|  6.91k|        auto node = pos.node();
  452|  6.91k|        return node == other || std::equal(node->leaf(),
  ------------------
  |  Branch (452:16): [True: 1.81k, False: 5.10k]
  |  Branch (452:33): [True: 2.05k, False: 3.05k]
  ------------------
  453|  5.10k|                                           node->leaf() + pos.count(),
  454|  5.10k|                                           other->leaf());
  455|  6.91k|    }

_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_11dec_visitorEJEEEDcPT_jmT0_DpOT1_:
 1838|   179M|{
 1839|   179M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 179M, False: 0]
  ------------------
 1840|   179M|    auto relaxed = node->relaxed();
 1841|   179M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 163M, False: 15.3M]
  ------------------
 1842|   163M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 163M, False: 0]
  ------------------
 1843|   163M|        return make_relaxed_pos(node, shift, relaxed)
 1844|   163M|            .visit(v, std::forward<Args>(args)...);
 1845|   163M|    } else {
 1846|  15.3M|        return make_regular_sub_pos(node, shift, size)
 1847|  15.3M|            .visit(v, std::forward<Args>(args)...);
 1848|  15.3M|    }
 1849|   179M|}
_ZN5immer6detail4rbts16make_relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11relaxed_posIT_EEPSE_jPNSE_9relaxed_tE:
 1828|   460M|{
 1829|   460M|    assert(node);
  ------------------
  |  Branch (1829:5): [True: 460M, False: 0]
  ------------------
 1830|   460M|    assert(relaxed);
  ------------------
  |  Branch (1830:5): [True: 460M, False: 0]
  ------------------
 1831|   460M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1831:5): [True: 460M, False: 0]
  ------------------
 1832|   460M|    return {node, shift, relaxed};
 1833|   460M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1813|   186M|    {
 1814|   186M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   186M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
 1431|   311M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
 1476|  37.2M|    {
 1477|  37.2M|        each_left(v, relaxed_->d.count, args...);
 1478|  37.2M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_leftINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1623|  37.4M|    {
 1624|  37.4M|        auto p = node_->inner();
 1625|  37.4M|        auto s = size_t{};
 1626|  37.4M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 8.32M, False: 29.0M]
  ------------------
 1627|  68.0M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 59.7M, False: 8.32M]
  ------------------
 1628|  59.7M|                IMMER_PREFETCH(p + i + 1);
 1629|  59.7M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  59.7M|                    .visit(v, args...);
 1631|  59.7M|                s = relaxed_->d.sizes[i];
 1632|  59.7M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 59.7M, False: 0]
  ------------------
 1633|  59.7M|            }
 1634|  29.0M|        } else {
 1635|  29.0M|            auto ss = shift_ - B;
 1636|   206M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 177M, False: 29.0M]
  ------------------
 1637|   177M|                visit_maybe_relaxed_sub(
 1638|   177M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|   177M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 177M, False: 0]
  ------------------
 1641|   177M|            }
 1642|  29.0M|        }
 1643|  37.4M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
 1430|   284M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_15regular_sub_posIT_EEPSE_jm:
 1044|  27.4M|{
 1045|  27.4M|    assert(node);
  ------------------
  |  Branch (1045:5): [True: 27.4M, False: 0]
  ------------------
 1046|  27.4M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1046:5): [True: 27.4M, False: 0]
  ------------------
 1047|  27.4M|    assert(size > 0);
  ------------------
  |  Branch (1047:5): [True: 27.4M, False: 0]
  ------------------
 1048|  27.4M|    assert(size <= (branches<NodeT::bits, size_t> << shift));
  ------------------
  |  Branch (1048:5): [True: 27.4M, False: 0]
  ------------------
 1049|  27.4M|    return {node, shift, size};
 1050|  27.4M|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1036|  15.3M|    {
 1037|  15.3M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  15.3M|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
  785|  27.0M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
  825|   425k|    {
  826|   425k|        return each_regular(*this, v, args...);
  827|   425k|    }
_ZN5immer6detail4rbts12each_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_DpOT1_:
  343|   425k|{
  344|   425k|    constexpr auto B  = bits<Pos>;
  345|   425k|    constexpr auto BL = bits_leaf<Pos>;
  346|   425k|    auto n            = p.node()->inner();
  347|   425k|    auto last         = p.count() - 1;
  348|   425k|    auto e            = n + last;
  349|   425k|    if (p.shift() == BL) {
  ------------------
  |  Branch (349:9): [True: 94.1k, False: 331k]
  ------------------
  350|   240k|        for (; n != e; ++n) {
  ------------------
  |  Branch (350:16): [True: 146k, False: 94.1k]
  ------------------
  351|   146k|            IMMER_PREFETCH(n + 1);
  352|   146k|            make_full_leaf_pos(*n).visit(v, args...);
  353|   146k|        }
  354|  94.1k|        make_leaf_pos(*n, p.size()).visit(v, args...);
  355|   331k|    } else {
  356|   331k|        auto ss = p.shift() - B;
  357|  1.23M|        for (; n != e; ++n)
  ------------------
  |  Branch (357:16): [True: 903k, False: 331k]
  ------------------
  358|   903k|            make_full_pos(*n, ss).visit(v, args...);
  359|   331k|        make_regular_pos(*n, ss, p.size()).visit(v, args...);
  360|   331k|    }
  361|   425k|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  787|  10.3M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_13full_leaf_posIT_EEPSE_:
  214|  15.2M|{
  215|  15.2M|    assert(node);
  ------------------
  |  Branch (215:5): [True: 15.2M, False: 0]
  ------------------
  216|  15.2M|    return {node};
  217|  15.2M|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  207|  1.69M|    {
  208|  1.69M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.69M|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
  199|  8.96M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
  198|  14.1M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_8leaf_posIT_EEPSE_m:
  119|  1.62M|{
  120|  1.62M|    assert(node);
  ------------------
  |  Branch (120:5): [True: 1.62M, False: 0]
  ------------------
  121|  1.62M|    assert(size > 0);
  ------------------
  |  Branch (121:5): [True: 1.62M, False: 0]
  ------------------
  122|  1.62M|    return {node, size};
  123|  1.62M|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
  786|  7.74M|    size_t size() const { return size_; }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  112|   390k|    {
  113|   390k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|   390k|    }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
  104|  1.62M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
  103|  2.43M|    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_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
  107|  2.49M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_8full_posIT_EEPSE_j:
 1412|  4.29M|{
 1413|  4.29M|    assert(node);
  ------------------
  |  Branch (1413:5): [True: 4.29M, False: 0]
  ------------------
 1414|  4.29M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (1414:5): [True: 4.29M, False: 0]
  ------------------
 1415|  4.29M|    return {node, shift};
 1416|  4.29M|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
 1405|  2.74M|    {
 1406|  2.74M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.74M|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
 1159|  3.43M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
 1185|  98.1k|    {
 1186|  98.1k|        auto p = node_->inner();
 1187|  98.1k|        auto e = p + branches<B>;
 1188|  98.1k|        if (shift_ == BL) {
  ------------------
  |  Branch (1188:13): [True: 85.6k, False: 12.4k]
  ------------------
 1189|   771k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1189:20): [True: 685k, False: 85.6k]
  ------------------
 1190|   685k|                IMMER_PREFETCH(p + 1);
 1191|   685k|                make_full_leaf_pos(*p).visit(v, args...);
 1192|   685k|            }
 1193|  85.6k|        } else {
 1194|  12.4k|            auto ss = shift_ - B;
 1195|   112k|            for (; p != e; ++p)
  ------------------
  |  Branch (1195:20): [True: 99.7k, False: 12.4k]
  ------------------
 1196|  99.7k|                make_full_pos(*p, ss).visit(v, args...);
 1197|  12.4k|        }
 1198|  98.1k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
 1158|  1.37M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_11regular_posIT_EEPSE_jm:
  690|  2.87M|{
  691|  2.87M|    assert(node);
  ------------------
  |  Branch (691:5): [True: 2.87M, False: 0]
  ------------------
  692|  2.87M|    assert(shift >= NodeT::bits_leaf);
  ------------------
  |  Branch (692:5): [True: 2.87M, False: 0]
  ------------------
  693|  2.87M|    assert(size > 0);
  ------------------
  |  Branch (693:5): [True: 2.87M, False: 0]
  ------------------
  694|  2.87M|    return {node, shift, size};
  695|  2.87M|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  336|   887k|    {
  337|   887k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|   887k|    }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
  231|  5.03M|    node_t* node() const { return node_; }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4eachINS1_11dec_visitorEJEEEvT_DpOT0_:
  243|   837k|    {
  244|   837k|        return each_regular(*this, v, args...);
  245|   837k|    }
_ZN5immer6detail4rbts12each_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_DpOT1_:
  343|   837k|{
  344|   837k|    constexpr auto B  = bits<Pos>;
  345|   837k|    constexpr auto BL = bits_leaf<Pos>;
  346|   837k|    auto n            = p.node()->inner();
  347|   837k|    auto last         = p.count() - 1;
  348|   837k|    auto e            = n + last;
  349|   837k|    if (p.shift() == BL) {
  ------------------
  |  Branch (349:9): [True: 291k, False: 546k]
  ------------------
  350|  1.13M|        for (; n != e; ++n) {
  ------------------
  |  Branch (350:16): [True: 840k, False: 291k]
  ------------------
  351|   840k|            IMMER_PREFETCH(n + 1);
  352|   840k|            make_full_leaf_pos(*n).visit(v, args...);
  353|   840k|        }
  354|   291k|        make_leaf_pos(*n, p.size()).visit(v, args...);
  355|   546k|    } else {
  356|   546k|        auto ss = p.shift() - B;
  357|  2.27M|        for (; n != e; ++n)
  ------------------
  |  Branch (357:16): [True: 1.73M, False: 546k]
  ------------------
  358|  1.73M|            make_full_pos(*n, ss).visit(v, args...);
  359|   546k|        make_regular_pos(*n, ss, p.size()).visit(v, args...);
  360|   546k|    }
  361|   837k|}
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  233|  4.70M|    shift_t shift() const { return shift_; }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
  232|  7.97M|    size_t size() const { return size_; }
_ZNK5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
  230|  3.06M|    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_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
  234|  7.03M|    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_policyELb1ELb1EEELj3ELj3EEEE5countEv:
  784|  21.0M|    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_policyELb1ELb1EEELj3ELj3EEEE8subindexEm:
  789|  25.1M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_17empty_regular_posIT_EEPSE_:
   64|  1.47M|{
   65|  1.47M|    return {node};
   66|  1.47M|}
_ZN5immer6detail4rbts17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
   57|  1.47M|    {
   58|  1.47M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
   59|  1.47M|    }
_ZNK5immer6detail4rbts17empty_regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
   41|  1.47M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_12leaf_sub_posIT_EEPSE_j:
  151|  86.0M|{
  152|  86.0M|    assert(node);
  ------------------
  |  Branch (152:5): [True: 86.0M, False: 0]
  ------------------
  153|  86.0M|    assert(count <= branches<NodeT::bits_leaf>);
  ------------------
  |  Branch (153:5): [True: 86.0M, False: 0]
  ------------------
  154|  86.0M|    return {node, count};
  155|  86.0M|}
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
  144|  65.3M|    {
  145|  65.3M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  65.3M|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
  136|  77.8M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
  135|  21.7M|    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_policyELb1ELb1EEELj3ELj3EEEEENS1_14empty_leaf_posIT_EEPSE_:
   88|  1.34M|{
   89|  1.34M|    assert(node);
  ------------------
  |  Branch (89:5): [True: 1.34M, False: 0]
  ------------------
   90|  1.34M|    return {node};
   91|  1.34M|}
_ZN5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_11dec_visitorEJEEEDcT_DpOT0_:
   81|  1.34M|    {
   82|  1.34M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
   83|  1.34M|    }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4nodeEv:
   75|  1.34M|    node_t* node() const { return node_; }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5countEv:
   74|  7.25k|    count_t count() const { return 0; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_DpOT0_:
 1813|   233k|    {
 1814|   233k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   233k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
 1433|  28.9M|    shift_t shift() const { return shift_; }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEj:
 1443|  13.8M|    {
 1444|  13.8M|        return size_sbh(offset, size_before(offset));
 1445|  13.8M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8size_sbhEjm:
 1448|  14.2M|    {
 1449|  14.2M|        assert(size_before_hint == size_before(offset));
  ------------------
  |  Branch (1449:9): [True: 14.2M, False: 0]
  ------------------
 1450|  14.2M|        return relaxed_->d.sizes[offset] - size_before_hint;
 1451|  14.2M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11size_beforeEj:
 1438|  51.0M|    {
 1439|  51.0M|        return offset ? relaxed_->d.sizes[offset - 1] : 0;
  ------------------
  |  Branch (1439:16): [True: 33.5M, False: 17.5M]
  ------------------
 1440|  51.0M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11last_oh_cshINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_jmDpOT0_:
 1737|   218k|    {
 1738|   218k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 218k, False: 0]
  ------------------
 1739|   218k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 218k, False: 0]
  ------------------
 1740|   218k|        auto child   = node_->inner()[offset_hint];
 1741|   218k|        auto is_leaf = shift_ == BL;
 1742|   218k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 218k]
  ------------------
 1743|   218k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|   218k|                   : visit_maybe_relaxed_sub(
 1745|   218k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|   218k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|   218k|{
 1839|   218k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 218k, False: 0]
  ------------------
 1840|   218k|    auto relaxed = node->relaxed();
 1841|   218k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 176k, False: 42.6k]
  ------------------
 1842|   176k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 176k, False: 0]
  ------------------
 1843|   176k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   176k|            .visit(v, std::forward<Args>(args)...);
 1845|   176k|    } else {
 1846|  42.6k|        return make_regular_sub_pos(node, shift, size)
 1847|  42.6k|            .visit(v, std::forward<Args>(args)...);
 1848|  42.6k|    }
 1849|   218k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_RjEEEDcT_DpOT0_:
 1036|  42.6k|    {
 1037|  42.6k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  42.6k|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
  788|  2.01M|    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_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_jDpOT0_:
  952|   296k|    {
  953|   296k|        return last_oh_regular(*this, v, offset_hint, args...);
  954|   296k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_17push_tail_visitorISD_EEJRPSD_EEEDcOT_T0_jDpOT1_:
  677|   296k|{
  678|   296k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 296k, False: 0]
  ------------------
  679|   296k|    constexpr auto B  = bits<Pos>;
  680|   296k|    constexpr auto BL = bits_leaf<Pos>;
  681|   296k|    auto child        = p.node()->inner()[offset_hint];
  682|   296k|    auto is_leaf      = p.shift() == BL;
  683|   296k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 296k]
  ------------------
  684|   296k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|   296k|                         .visit(v, args...);
  686|   296k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_DpOT0_:
  336|   797k|    {
  337|   797k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|   797k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_jDpOT0_:
  330|   501k|    {
  331|   501k|        return last_oh_regular(*this, v, offset_hint, args...);
  332|   501k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_17push_tail_visitorISD_EEJRPSD_EEEDcOT_T0_jDpOT1_:
  677|   501k|{
  678|   501k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 501k, False: 0]
  ------------------
  679|   501k|    constexpr auto B  = bits<Pos>;
  680|   501k|    constexpr auto BL = bits_leaf<Pos>;
  681|   501k|    auto child        = p.node()->inner()[offset_hint];
  682|   501k|    auto is_leaf      = p.shift() == BL;
  683|   501k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 501k]
  ------------------
  684|   501k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|   501k|                         .visit(v, args...);
  686|   501k|}
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
 1432|   123M|    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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17push_tail_visitorISC_EEJRPSC_EEEDcT_DpOT0_:
 1036|   285k|    {
 1037|   285k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   285k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_DpOT0_:
  144|  58.3k|    {
  145|  58.3k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  58.3k|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
  139|  1.18M|    count_t index(size_t idx) const { return idx & mask<BL>; }
flex-vector-bo.cpp:_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSJ_E_EEEDcPSJ_jmT0_DpOT1_:
 1838|   241k|{
 1839|   241k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 241k, False: 0]
  ------------------
 1840|   241k|    auto relaxed = node->relaxed();
 1841|   241k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 190k, False: 50.8k]
  ------------------
 1842|   190k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 190k, False: 0]
  ------------------
 1843|   190k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   190k|            .visit(v, std::forward<Args>(args)...);
 1845|   190k|    } else {
 1846|  50.8k|        return make_regular_sub_pos(node, shift, size)
 1847|  50.8k|            .visit(v, std::forward<Args>(args)...);
 1848|  50.8k|    }
 1849|   241k|}
flex-vector-bo.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1813|   190k|    {
 1814|   190k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   190k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
 1454|  15.5M|    {
 1455|  15.5M|        auto offset = idx >> shift_;
 1456|  22.0M|        while (relaxed_->d.sizes[offset] <= idx)
  ------------------
  |  Branch (1456:16): [True: 6.54M, False: 15.5M]
  ------------------
 1457|  6.54M|            ++offset;
 1458|  15.5M|        return offset;
 1459|  15.5M|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7relaxedEv:
 1435|   190k|    relaxed_t* relaxed() const { return relaxed_; }
flex-vector-bo.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjDpOT0_:
 1686|   190k|    {
 1687|   190k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 190k, False: 0]
  ------------------
 1688|   190k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 25.4k, False: 165k]
  ------------------
 1689|   190k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|   190k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjmDpOT0_:
 1698|   190k|    {
 1699|   190k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|   190k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjmDpOT0_:
 1717|   190k|    {
 1718|   190k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 190k, False: 0]
  ------------------
 1719|   190k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 25.4k, False: 165k]
  |  Branch (1719:9): [True: 190k, False: 0]
  ------------------
 1720|   190k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   190k|        auto child     = node_->inner()[offset_hint];
 1722|   190k|        auto is_leaf   = shift_ == BL;
 1723|   190k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   190k|        auto next_idx  = idx - left_size_hint;
 1725|   190k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 42.4k, False: 148k]
  ------------------
 1726|   190k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  42.4k|                         .visit(v, next_idx, args...)
 1728|   190k|                   : visit_maybe_relaxed_sub(
 1729|   148k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   190k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  144|  42.4k|    {
  145|  42.4k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  42.4k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1036|  50.8k|    {
 1037|  50.8k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  50.8k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
  938|  50.8k|    {
  939|  50.8k|        return towards_oh_ch_regular(
  940|  50.8k|            *this, v, idx, offset_hint, count(), args...);
  941|  50.8k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_14update_visitorISD_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcOSL_T0_mjjDpOT1_:
  632|  50.8k|{
  633|  50.8k|    constexpr auto B  = bits<Pos>;
  634|  50.8k|    constexpr auto BL = bits_leaf<Pos>;
  635|  50.8k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 50.8k, False: 0]
  ------------------
  636|  50.8k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 50.8k, False: 0]
  ------------------
  637|  50.8k|    auto is_leaf = p.shift() == BL;
  638|  50.8k|    auto child   = p.node()->inner()[offset_hint];
  639|  50.8k|    auto is_full = offset_hint + 1 != count_hint;
  640|  50.8k|    return is_full
  ------------------
  |  Branch (640:12): [True: 15.4k, False: 35.3k]
  ------------------
  641|  50.8k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 7.49k, False: 8.00k]
  ------------------
  642|  15.4k|                          : make_full_pos(child, p.shift() - B)
  643|  8.00k|                                .visit(v, idx, args...))
  644|  50.8k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 31.7k, False: 3.68k]
  ------------------
  645|  35.3k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  35.3k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  3.68k|                            .visit(v, idx, args...));
  648|  50.8k|}
flex-vector-bo.cpp:_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  207|  17.7k|    {
  208|  17.7k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  17.7k|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
  202|   259k|    count_t index(size_t idx) const { return idx & mask<BL>; }
flex-vector-bo.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
 1405|  13.4k|    {
 1406|  13.4k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  13.4k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5indexEm:
 1162|   525k|    count_t index(size_t idx) const { return (idx >> shift_) & mask<B>; }
flex-vector-bo.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
 1329|  13.4k|    {
 1330|  13.4k|        return towards_oh(v, idx, offset_hint, args...);
 1331|  13.4k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjDpOT0_:
 1336|  13.4k|    {
 1337|  13.4k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 13.4k, False: 0]
  ------------------
 1338|  13.4k|        auto is_leaf = shift_ == BL;
 1339|  13.4k|        auto child   = node_->inner()[offset_hint];
 1340|  13.4k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 9.32k, False: 4.12k]
  ------------------
 1341|  13.4k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  13.4k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  13.4k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  112|  33.1k|    {
  113|  33.1k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  33.1k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14update_visitorISC_EEJRmRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcSL_DpOT0_:
  336|  3.99k|    {
  337|  3.99k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.99k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_14update_visitorISC_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSK_E_EEEDcSK_mjjDpOT0_:
  316|  3.99k|    {
  317|  3.99k|        return towards_oh_ch_regular(
  318|  3.99k|            *this, v, idx, offset_hint, count(), args...);
  319|  3.99k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_14update_visitorISD_EEJRZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSL_E_EEEDcOSL_T0_mjjDpOT1_:
  632|  3.99k|{
  633|  3.99k|    constexpr auto B  = bits<Pos>;
  634|  3.99k|    constexpr auto BL = bits_leaf<Pos>;
  635|  3.99k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 3.99k, False: 0]
  ------------------
  636|  3.99k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 3.99k, False: 0]
  ------------------
  637|  3.99k|    auto is_leaf = p.shift() == BL;
  638|  3.99k|    auto child   = p.node()->inner()[offset_hint];
  639|  3.99k|    auto is_full = offset_hint + 1 != count_hint;
  640|  3.99k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.27k, False: 1.71k]
  ------------------
  641|  3.99k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 963, False: 1.31k]
  ------------------
  642|  2.27k|                          : make_full_pos(child, p.shift() - B)
  643|  1.31k|                                .visit(v, idx, args...))
  644|  3.99k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.40k, False: 311]
  ------------------
  645|  1.71k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  1.71k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    311|                            .visit(v, idx, args...));
  648|  3.99k|}
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  44.1k|{
 1839|  44.1k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 44.1k, False: 0]
  ------------------
 1840|  44.1k|    auto relaxed = node->relaxed();
 1841|  44.1k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 35.7k, False: 8.37k]
  ------------------
 1842|  35.7k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 35.7k, False: 0]
  ------------------
 1843|  35.7k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  35.7k|            .visit(v, std::forward<Args>(args)...);
 1845|  35.7k|    } else {
 1846|  8.37k|        return make_regular_sub_pos(node, shift, size)
 1847|  8.37k|            .visit(v, std::forward<Args>(args)...);
 1848|  8.37k|    }
 1849|  44.1k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1813|  35.7k|    {
 1814|  35.7k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  35.7k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1686|  28.1k|    {
 1687|  28.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 28.1k, False: 0]
  ------------------
 1688|  28.1k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 28.1k]
  ------------------
 1689|  28.1k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  28.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1698|  28.1k|    {
 1699|  28.1k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  28.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1717|  28.1k|    {
 1718|  28.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 28.1k, False: 0]
  ------------------
 1719|  28.1k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 28.1k]
  |  Branch (1719:9): [True: 28.1k, False: 0]
  ------------------
 1720|  28.1k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  28.1k|        auto child     = node_->inner()[offset_hint];
 1722|  28.1k|        auto is_leaf   = shift_ == BL;
 1723|  28.1k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  28.1k|        auto next_idx  = idx - left_size_hint;
 1725|  28.1k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 1.72k, False: 26.4k]
  ------------------
 1726|  28.1k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  1.72k|                         .visit(v, next_idx, args...)
 1728|  28.1k|                   : visit_maybe_relaxed_sub(
 1729|  26.4k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  28.1k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  144|  1.72k|    {
  145|  1.72k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.72k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1686|  11.1k|    {
 1687|  11.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 11.1k, False: 0]
  ------------------
 1688|  11.1k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 9.59k, False: 1.51k]
  ------------------
 1689|  11.1k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  11.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1698|  11.1k|    {
 1699|  11.1k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  11.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1717|  11.1k|    {
 1718|  11.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 11.1k, False: 0]
  ------------------
 1719|  11.1k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 9.59k, False: 1.51k]
  |  Branch (1719:9): [True: 11.1k, False: 0]
  ------------------
 1720|  11.1k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  11.1k|        auto child     = node_->inner()[offset_hint];
 1722|  11.1k|        auto is_leaf   = shift_ == BL;
 1723|  11.1k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  11.1k|        auto next_idx  = idx - left_size_hint;
 1725|  11.1k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 4.36k, False: 6.74k]
  ------------------
 1726|  11.1k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  4.36k|                         .visit(v, next_idx, args...)
 1728|  11.1k|                   : visit_maybe_relaxed_sub(
 1729|  6.74k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  11.1k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  144|  4.36k|    {
  145|  4.36k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.36k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  6.74k|{
 1839|  6.74k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 6.74k, False: 0]
  ------------------
 1840|  6.74k|    auto relaxed = node->relaxed();
 1841|  6.74k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 3.51k, False: 3.23k]
  ------------------
 1842|  3.51k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 3.51k, False: 0]
  ------------------
 1843|  3.51k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  3.51k|            .visit(v, std::forward<Args>(args)...);
 1845|  3.51k|    } else {
 1846|  3.23k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.23k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.23k|    }
 1849|  6.74k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1813|  3.51k|    {
 1814|  3.51k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  3.51k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1036|  3.23k|    {
 1037|  3.23k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.23k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  927|  6.01k|    {
  928|  6.01k|        return towards_oh_ch_regular(
  929|  6.01k|            *this, v, idx, offset_hint, count(), args...);
  930|  6.01k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb0EEEJEEEDcOT_T0_mjjDpOT1_:
  632|  6.01k|{
  633|  6.01k|    constexpr auto B  = bits<Pos>;
  634|  6.01k|    constexpr auto BL = bits_leaf<Pos>;
  635|  6.01k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 6.01k, False: 0]
  ------------------
  636|  6.01k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 6.01k, False: 0]
  ------------------
  637|  6.01k|    auto is_leaf = p.shift() == BL;
  638|  6.01k|    auto child   = p.node()->inner()[offset_hint];
  639|  6.01k|    auto is_full = offset_hint + 1 != count_hint;
  640|  6.01k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.01k, False: 4.00k]
  ------------------
  641|  6.01k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.10k, False: 907]
  ------------------
  642|  2.01k|                          : make_full_pos(child, p.shift() - B)
  643|    907|                                .visit(v, idx, args...))
  644|  6.01k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.45k, False: 2.55k]
  ------------------
  645|  4.00k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  4.00k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.55k|                            .visit(v, idx, args...));
  648|  6.01k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  207|  6.30k|    {
  208|  6.30k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  6.30k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1405|  2.32k|    {
 1406|  2.32k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.32k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1336|  5.31k|    {
 1337|  5.31k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 5.31k, False: 0]
  ------------------
 1338|  5.31k|        auto is_leaf = shift_ == BL;
 1339|  5.31k|        auto child   = node_->inner()[offset_hint];
 1340|  5.31k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 4.43k, False: 886]
  ------------------
 1341|  5.31k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  5.31k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  5.31k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
 1161|  53.4k|    shift_t shift() const { return shift_; }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  112|  2.71k|    {
  113|  2.71k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  2.71k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  336|  3.11k|    {
  337|  3.11k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.11k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  305|  3.11k|    {
  306|  3.11k|        return towards_oh_ch_regular(
  307|  3.11k|            *this, v, idx, offset_hint, count(), args...);
  308|  3.11k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb0EEEJEEEDcOT_T0_mjjDpOT1_:
  632|  3.11k|{
  633|  3.11k|    constexpr auto B  = bits<Pos>;
  634|  3.11k|    constexpr auto BL = bits_leaf<Pos>;
  635|  3.11k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 3.11k, False: 0]
  ------------------
  636|  3.11k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 3.11k, False: 0]
  ------------------
  637|  3.11k|    auto is_leaf = p.shift() == BL;
  638|  3.11k|    auto child   = p.node()->inner()[offset_hint];
  639|  3.11k|    auto is_full = offset_hint + 1 != count_hint;
  640|  3.11k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.29k, False: 1.81k]
  ------------------
  641|  3.11k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 765, False: 531]
  ------------------
  642|  1.29k|                          : make_full_pos(child, p.shift() - B)
  643|    531|                                .visit(v, idx, args...))
  644|  3.11k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.25k, False: 562]
  ------------------
  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|    562|                            .visit(v, idx, args...));
  648|  3.11k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1036|  8.37k|    {
 1037|  8.37k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  8.37k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_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_policyELb1ELb1EEELj3ELj3EEEEENS1_19slice_right_visitorISD_Lb1EEEJEEEDcOT_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: 4.82k, False: 760]
  ------------------
  641|  5.58k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.06k, False: 3.75k]
  ------------------
  642|  4.82k|                          : make_full_pos(child, p.shift() - B)
  643|  3.75k|                                .visit(v, idx, args...))
  644|  5.58k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 760, False: 0]
  ------------------
  645|    760|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    760|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  207|  1.82k|    {
  208|  1.82k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.82k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1405|  5.36k|    {
 1406|  5.36k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  5.36k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_19slice_right_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1336|  2.36k|    {
 1337|  2.36k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 2.36k, False: 0]
  ------------------
 1338|  2.36k|        auto is_leaf = shift_ == BL;
 1339|  2.36k|        auto child   = node_->inner()[offset_hint];
 1340|  2.36k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 761, False: 1.60k]
  ------------------
 1341|  2.36k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  2.36k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  2.36k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19slice_right_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
  112|    760|    {
  113|    760|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    760|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  32.5k|{
 1839|  32.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 32.5k, False: 0]
  ------------------
 1840|  32.5k|    auto relaxed = node->relaxed();
 1841|  32.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 23.9k, False: 8.58k]
  ------------------
 1842|  23.9k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 23.9k, False: 0]
  ------------------
 1843|  23.9k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  23.9k|            .visit(v, std::forward<Args>(args)...);
 1845|  23.9k|    } else {
 1846|  8.58k|        return make_regular_sub_pos(node, shift, size)
 1847|  8.58k|            .visit(v, std::forward<Args>(args)...);
 1848|  8.58k|    }
 1849|  32.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1813|  23.9k|    {
 1814|  23.9k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  23.9k|    }
_ZNK5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8subindexEm:
 1434|  4.79M|    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_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
 1705|  4.04k|    {
 1706|  4.04k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 4.04k, False: 0]
  ------------------
 1707|  4.04k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 3.73k, False: 307]
  ------------------
 1708|  4.04k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  4.04k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjmDpOT0_:
 1717|  4.04k|    {
 1718|  4.04k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 4.04k, False: 0]
  ------------------
 1719|  4.04k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 3.73k, False: 307]
  |  Branch (1719:9): [True: 4.04k, False: 0]
  ------------------
 1720|  4.04k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  4.04k|        auto child     = node_->inner()[offset_hint];
 1722|  4.04k|        auto is_leaf   = shift_ == BL;
 1723|  4.04k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  4.04k|        auto next_idx  = idx - left_size_hint;
 1725|  4.04k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 4.04k]
  ------------------
 1726|  4.04k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  4.04k|                   : visit_maybe_relaxed_sub(
 1729|  4.04k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  4.04k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1705|   113k|    {
 1706|   113k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 113k, False: 0]
  ------------------
 1707|   113k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 33.3k, False: 80.1k]
  ------------------
 1708|   113k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|   113k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjmDpOT0_:
 1717|   113k|    {
 1718|   113k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 113k, False: 0]
  ------------------
 1719|   113k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 33.3k, False: 80.1k]
  |  Branch (1719:9): [True: 113k, False: 0]
  ------------------
 1720|   113k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   113k|        auto child     = node_->inner()[offset_hint];
 1722|   113k|        auto is_leaf   = shift_ == BL;
 1723|   113k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   113k|        auto next_idx  = idx - left_size_hint;
 1725|   113k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 18.3k, False: 95.1k]
  ------------------
 1726|   113k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  18.3k|                         .visit(v, next_idx, args...)
 1728|   113k|                   : visit_maybe_relaxed_sub(
 1729|  95.1k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   113k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
  144|  18.3k|    {
  145|  18.3k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  18.3k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  95.1k|{
 1839|  95.1k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 95.1k, False: 0]
  ------------------
 1840|  95.1k|    auto relaxed = node->relaxed();
 1841|  95.1k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 93.6k, False: 1.53k]
  ------------------
 1842|  93.6k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 93.6k, False: 0]
  ------------------
 1843|  93.6k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  93.6k|            .visit(v, std::forward<Args>(args)...);
 1845|  93.6k|    } else {
 1846|  1.53k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.53k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.53k|    }
 1849|  95.1k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1813|  93.6k|    {
 1814|  93.6k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  93.6k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJRmEEEDcT_DpOT0_:
 1036|  1.53k|    {
 1037|  1.53k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.53k|    }
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11size_beforeEj:
  791|  2.07M|    {
  792|  2.07M|        return size_t{offset} << shift_;
  793|  2.07M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8size_sbhEjm:
  803|  20.8k|    {
  804|  20.8k|        assert(size_before_hint == size_before(offset));
  ------------------
  |  Branch (804:9): [True: 20.8k, False: 0]
  ------------------
  805|  20.8k|        return offset == subindex(size_ - 1) ? size_ - size_before_hint
  ------------------
  |  Branch (805:16): [True: 8.35k, False: 12.5k]
  ------------------
  806|  20.8k|                                             : size_t{1} << shift_;
  807|  20.8k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
  946|  9.37k|    {
  947|  9.37k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  9.37k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_18slice_left_visitorISD_Lb0EEEJEEEDcOT_T0_mjDpOT1_:
  653|  9.37k|{
  654|  9.37k|    constexpr auto B  = bits<Pos>;
  655|  9.37k|    constexpr auto BL = bits_leaf<Pos>;
  656|  9.37k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 9.37k, False: 0]
  ------------------
  657|  9.37k|    auto is_leaf = p.shift() == BL;
  658|  9.37k|    auto child   = p.node()->inner()[offset_hint];
  659|  9.37k|    auto lsize   = offset_hint << p.shift();
  660|  9.37k|    auto size    = p.this_size();
  661|  9.37k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  9.37k|    return is_full
  ------------------
  |  Branch (662:12): [True: 9.37k, False: 0]
  ------------------
  663|  9.37k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 4.81k, False: 4.56k]
  ------------------
  664|  9.37k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  9.37k|                      : make_full_pos(child, p.shift() - B)
  666|  4.56k|                            .visit(v, idx - lsize, args...))
  667|  9.37k|               : (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|  9.37k|}
_ZNK5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9this_sizeEv:
  794|  20.8k|    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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJmEEEDcT_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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb0EEEJmEEEDcT_DpOT0_:
 1405|  7.25k|    {
 1406|  7.25k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  7.25k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8subindexEm:
 1163|  10.5k|    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_policyELb1ELb1EEELj3ELj3EEEE11size_beforeEj:
 1170|  44.4k|    {
 1171|  44.4k|        return size_t{offset} << shift_;
 1172|  44.4k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8size_sbhEjm:
 1166|  10.5k|    {
 1167|  10.5k|        return size_t{1} << shift_;
 1168|  10.5k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb0EEEJEEEDcT_mjDpOT0_:
 1348|  7.99k|    {
 1349|  7.99k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1349:9): [True: 7.99k, False: 0]
  ------------------
 1350|  7.99k|        auto is_leaf = shift_ == BL;
 1351|  7.99k|        auto child   = node_->inner()[offset_hint];
 1352|  7.99k|        auto lsize   = size_t{offset_hint} << shift_;
 1353|  7.99k|        return is_leaf
  ------------------
  |  Branch (1353:16): [True: 5.31k, False: 2.68k]
  ------------------
 1354|  7.99k|                   ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
 1355|  7.99k|                   : make_full_pos(child, shift_ - B)
 1356|  2.68k|                         .visit(v, idx - lsize, args...);
 1357|  7.99k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
 1175|  10.5k|    {
 1176|  10.5k|        auto e = sizes + n;
 1177|  60.1k|        for (; sizes != e; ++sizes) {
  ------------------
  |  Branch (1177:16): [True: 49.6k, False: 10.5k]
  ------------------
 1178|  49.6k|            init = *sizes = init + (size_t{1} << shift_);
 1179|       |            assert(init);
  ------------------
  |  Branch (1179:13): [True: 49.6k, False: 0]
  ------------------
 1180|  49.6k|        }
 1181|  10.5k|    }
_ZNK5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
 1160|   619k|    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_policyELb1ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
  810|  3.98M|    {
  811|  3.98M|        if (n) {
  ------------------
  |  Branch (811:13): [True: 3.98M, False: 4.38k]
  ------------------
  812|  3.98M|            auto last = offset + n - 1;
  813|  3.98M|            auto e    = sizes + n - 1;
  814|  15.9M|            for (; sizes != e; ++sizes) {
  ------------------
  |  Branch (814:20): [True: 11.9M, False: 3.98M]
  ------------------
  815|  11.9M|                init = *sizes = init + (size_t{1} << shift_);
  816|  11.9M|                assert(init);
  ------------------
  |  Branch (816:17): [True: 11.9M, False: 0]
  ------------------
  817|  11.9M|            }
  818|  3.98M|            *sizes = init + size(last);
  819|       |            assert(*sizes);
  ------------------
  |  Branch (819:13): [True: 3.98M, False: 0]
  ------------------
  820|  3.98M|        }
  821|  3.98M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEj:
  797|  4.00M|    {
  798|  4.00M|        return offset == subindex(size_ - 1) ? size_ - size_before(offset)
  ------------------
  |  Branch (798:16): [True: 2.00M, False: 2.00M]
  ------------------
  799|  4.00M|                                             : size_t{1} << shift_;
  800|  4.00M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10copy_sizesEjjmPm:
 1462|  22.1M|    {
 1463|  22.1M|        auto e     = sizes + n;
 1464|  22.1M|        auto prev  = size_before(offset);
 1465|  22.1M|        auto these = relaxed_->d.sizes + offset;
 1466|   102M|        for (; sizes != e; ++sizes, ++these) {
  ------------------
  |  Branch (1466:16): [True: 80.2M, False: 22.1M]
  ------------------
 1467|  80.2M|            auto this_size = *these;
 1468|  80.2M|            init = *sizes = init + (this_size - prev);
 1469|  80.2M|            assert(init);
  ------------------
  |  Branch (1469:13): [True: 80.2M, False: 0]
  ------------------
 1470|  80.2M|            prev = this_size;
 1471|  80.2M|        }
 1472|  22.1M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJRmEEEDcT_DpOT0_:
 1036|  8.58k|    {
 1037|  8.58k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  8.58k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_18slice_left_visitorISC_Lb1EEEJEEEDcT_mjDpOT0_:
  946|  2.60k|    {
  947|  2.60k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  2.60k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_18slice_left_visitorISD_Lb1EEEJEEEDcOT_T0_mjDpOT1_:
  653|  2.60k|{
  654|  2.60k|    constexpr auto B  = bits<Pos>;
  655|  2.60k|    constexpr auto BL = bits_leaf<Pos>;
  656|  2.60k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 2.60k, False: 0]
  ------------------
  657|  2.60k|    auto is_leaf = p.shift() == BL;
  658|  2.60k|    auto child   = p.node()->inner()[offset_hint];
  659|  2.60k|    auto lsize   = offset_hint << p.shift();
  660|  2.60k|    auto size    = p.this_size();
  661|  2.60k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  2.60k|    return is_full
  ------------------
  |  Branch (662:12): [True: 744, False: 1.85k]
  ------------------
  663|  2.60k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 0, False: 744]
  ------------------
  664|    744|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|    744|                      : make_full_pos(child, p.shift() - B)
  666|    744|                            .visit(v, idx - lsize, args...))
  667|  2.60k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 1.85k]
  ------------------
  668|  1.85k|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|  1.85k|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|  1.85k|                            .visit(v, idx - lsize, args...));
  672|  2.60k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJmEEEDcT_DpOT0_:
 1405|    744|    {
 1406|    744|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    744|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18slice_left_visitorISC_Lb1EEEJmEEEDcT_DpOT0_:
 1036|  1.85k|    {
 1037|  1.85k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.85k|    }
_ZN5immer6detail4rbts30make_singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEDaPT_j:
  766|  7.25k|{
  767|  7.25k|    assert(leaf);
  ------------------
  |  Branch (767:5): [True: 7.25k, False: 0]
  ------------------
  768|  7.25k|    IMMER_ASSERT_TAGGED(leaf->kind() == NodeT::kind_t::leaf);
  ------------------
  |  |   68|  7.25k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (768:5): [True: 7.25k, False: 0]
  ------------------
  769|  7.25k|    assert(count > 0);
  ------------------
  |  Branch (769:5): [True: 7.25k, False: 0]
  ------------------
  770|  7.25k|    return singleton_regular_sub_pos<NodeT>{leaf, count};
  771|  7.25k|}
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_14empty_leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
  759|  7.25k|    {
  760|  7.25k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  761|  7.25k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  7.25k|{
 1839|  7.25k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 7.25k, False: 0]
  ------------------
 1840|  7.25k|    auto relaxed = node->relaxed();
 1841|  7.25k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 5.00k, False: 2.25k]
  ------------------
 1842|  5.00k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 5.00k, False: 0]
  ------------------
 1843|  5.00k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  5.00k|            .visit(v, std::forward<Args>(args)...);
 1845|  5.00k|    } else {
 1846|  2.25k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.25k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.25k|    }
 1849|  7.25k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  5.00k|    {
 1814|  5.00k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  5.00k|    }
_ZNK5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  735|  25.7k|    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_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  744|  7.25k|    {
  745|  7.25k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
  144|  8.34M|    {
  145|  8.34M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  8.34M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1813|   122M|    {
 1814|   122M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   122M|    }
_ZN5immer6detail4rbts12null_sub_pos14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  707|  3.59M|    {
  708|  3.59M|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  744|  7.25k|    {
  745|  7.25k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
  144|  8.34M|    {
  145|  8.34M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  8.34M|    }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
  137|  8.34M|    size_t size() const { return count_; }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1813|   122M|    {
 1814|   122M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   122M|    }
_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_policyELb1ELb1EEELj3ELj3EEEEEEEEvT_DpOT0_:
  707|  3.59M|    {
  708|  3.59M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  17.5k|    {
 1763|  17.5k|        auto child      = node_->inner()[0];
 1764|  17.5k|        auto child_size = relaxed_->d.sizes[0];
 1765|  17.5k|        auto is_leaf    = shift_ == BL;
 1766|  17.5k|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 17.5k, False: 0]
  ------------------
 1767|  17.5k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 17.5k]
  ------------------
 1768|  17.5k|                       : visit_maybe_relaxed_sub(
 1769|  17.5k|                             child, shift_ - B, child_size, v, args...);
 1770|  17.5k|    }
_ZNK5immer6detail4rbts14empty_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
   76|  7.25k|    shift_t shift() const { return 0; }
_ZNK5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  138|  4.21M|    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_policyELb1ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  17.5k|{
 1839|  17.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 17.5k, False: 0]
  ------------------
 1840|  17.5k|    auto relaxed = node->relaxed();
 1841|  17.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 17.2k, False: 300]
  ------------------
 1842|  17.2k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 17.2k, False: 0]
  ------------------
 1843|  17.2k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  17.2k|            .visit(v, std::forward<Args>(args)...);
 1845|  17.2k|    } else {
 1846|    300|        return make_regular_sub_pos(node, shift, size)
 1847|    300|            .visit(v, std::forward<Args>(args)...);
 1848|    300|    }
 1849|  17.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  17.2k|    {
 1814|  17.2k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  17.2k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1036|    300|    {
 1037|    300|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    300|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  970|    658|    {
  971|    658|        auto is_leaf = shift_ == BL;
  972|    658|        auto child   = node_->inner()[0];
  973|    658|        auto is_full = size_ >= (size_t{1} << shift_);
  974|    658|        return is_full
  ------------------
  |  Branch (974:16): [True: 658, False: 0]
  ------------------
  975|    658|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 658]
  ------------------
  976|    658|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|    658|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|    658|                   : (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|    658|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  201|   442k|    shift_t shift() const { return 0; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1405|    906|    {
 1406|    906|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    906|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1361|    248|    {
 1362|    248|        auto is_leaf = shift_ == BL;
 1363|    248|        auto child   = node_->inner()[0];
 1364|    248|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 248]
  ------------------
 1365|    248|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|    248|    }
_ZN5immer6detail4rbts12null_sub_pos13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  711|  69.7k|    {
  712|  69.7k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1304|  22.8k|    {
 1305|  22.8k|        each_i(v, 1, branches<B>, args...);
 1306|  22.8k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE6each_iINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jjDpOT0_:
 1263|  22.8k|    {
 1264|  22.8k|        auto p = node_->inner() + i;
 1265|  22.8k|        auto e = node_->inner() + n;
 1266|  22.8k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 16.6k, False: 6.18k]
  ------------------
 1267|   133k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 116k, False: 16.6k]
  ------------------
 1268|   116k|                IMMER_PREFETCH(p + 1);
 1269|   116k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|   116k|            }
 1271|  16.6k|        } else {
 1272|  6.18k|            auto ss = shift_ - B;
 1273|  49.4k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 43.3k, False: 6.18k]
  ------------------
 1274|  43.3k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  6.18k|        }
 1276|  22.8k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
  207|  6.31M|    {
  208|  6.31M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  6.31M|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1405|   611k|    {
 1406|   611k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   611k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEEEEEvT_DpOT0_:
  711|  69.7k|    {
  712|  69.7k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1304|  22.8k|    {
 1305|  22.8k|        each_i(v, 1, branches<B>, args...);
 1306|  22.8k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE6each_iINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jjDpOT0_:
 1263|  22.8k|    {
 1264|  22.8k|        auto p = node_->inner() + i;
 1265|  22.8k|        auto e = node_->inner() + n;
 1266|  22.8k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 16.6k, False: 6.18k]
  ------------------
 1267|   133k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 116k, False: 16.6k]
  ------------------
 1268|   116k|                IMMER_PREFETCH(p + 1);
 1269|   116k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|   116k|            }
 1271|  16.6k|        } else {
 1272|  6.18k|            auto ss = shift_ - B;
 1273|  49.4k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 43.3k, False: 6.18k]
  ------------------
 1274|  43.3k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  6.18k|        }
 1276|  22.8k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
  207|  6.31M|    {
  208|  6.31M|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  6.31M|    }
_ZNK5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE4sizeEv:
  200|  6.31M|    size_t size() const { return branches<BL>; }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1405|   611k|    {
 1406|   611k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   611k|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  753|    658|    {
  754|    658|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|    658|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  144|    658|    {
  145|    658|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    658|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1370|    658|    {
 1371|    658|        assert(shift_ == BL);
  ------------------
  |  Branch (1371:9): [True: 658, False: 0]
  ------------------
 1372|    658|        auto child = node_->inner()[0];
 1373|    658|        return make_full_leaf_pos(child).visit(v, args...);
 1374|    658|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  207|  2.55k|    {
  208|  2.55k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  2.55k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  906|   442k|    {
  907|   442k|        if (count() > 1)
  ------------------
  |  Branch (907:13): [True: 432k, False: 9.75k]
  ------------------
  908|   432k|            each_right_sub_(v, 1, args...);
  909|   442k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE15each_right_sub_INS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
  879|   432k|    {
  880|   432k|        auto last  = count() - 1;
  881|   432k|        auto lsize = size_ - (last << shift_);
  882|   432k|        auto n     = node()->inner() + i;
  883|   432k|        auto e     = node()->inner() + last;
  884|   432k|        if (shift() == BL) {
  ------------------
  |  Branch (884:13): [True: 415k, False: 16.6k]
  ------------------
  885|  2.90M|            for (; n != e; ++n) {
  ------------------
  |  Branch (885:20): [True: 2.48M, False: 415k]
  ------------------
  886|  2.48M|                IMMER_PREFETCH(n + 1);
  887|  2.48M|                make_full_leaf_pos(*n).visit(v, args...);
  888|  2.48M|            }
  889|   415k|            make_leaf_sub_pos(*n, lsize).visit(v, args...);
  890|   415k|        } else {
  891|  16.6k|            auto ss = shift_ - B;
  892|  79.4k|            for (; n != e; ++n)
  ------------------
  |  Branch (892:20): [True: 62.7k, False: 16.6k]
  ------------------
  893|  62.7k|                make_full_pos(*n, ss).visit(v, args...);
  894|  16.6k|            make_regular_sub_pos(*n, ss, lsize).visit(v, args...);
  895|  16.6k|        }
  896|   432k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcT_DpOT0_:
 1036|  4.46M|    {
 1037|  4.46M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.46M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  906|   442k|    {
  907|   442k|        if (count() > 1)
  ------------------
  |  Branch (907:13): [True: 432k, False: 9.75k]
  ------------------
  908|   432k|            each_right_sub_(v, 1, args...);
  909|   442k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE15each_right_sub_INS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
  879|   432k|    {
  880|   432k|        auto last  = count() - 1;
  881|   432k|        auto lsize = size_ - (last << shift_);
  882|   432k|        auto n     = node()->inner() + i;
  883|   432k|        auto e     = node()->inner() + last;
  884|   432k|        if (shift() == BL) {
  ------------------
  |  Branch (884:13): [True: 415k, False: 16.6k]
  ------------------
  885|  2.90M|            for (; n != e; ++n) {
  ------------------
  |  Branch (885:20): [True: 2.48M, False: 415k]
  ------------------
  886|  2.48M|                IMMER_PREFETCH(n + 1);
  887|  2.48M|                make_full_leaf_pos(*n).visit(v, args...);
  888|  2.48M|            }
  889|   415k|            make_leaf_sub_pos(*n, lsize).visit(v, args...);
  890|   415k|        } else {
  891|  16.6k|            auto ss = shift_ - B;
  892|  79.4k|            for (; n != e; ++n)
  ------------------
  |  Branch (892:20): [True: 62.7k, False: 16.6k]
  ------------------
  893|  62.7k|                make_full_pos(*n, ss).visit(v, args...);
  894|  16.6k|            make_regular_sub_pos(*n, ss, lsize).visit(v, args...);
  895|  16.6k|        }
  896|   432k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcT_DpOT0_:
 1036|  4.46M|    {
 1037|  4.46M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.46M|    }
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  753|  1.89k|    {
  754|  1.89k|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|  1.89k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  144|  1.89k|    {
  145|  1.89k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.89k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  986|  1.89k|    {
  987|  1.89k|        assert(shift_ == BL);
  ------------------
  |  Branch (987:9): [True: 1.89k, False: 0]
  ------------------
  988|  1.89k|        auto child   = node_->inner()[0];
  989|  1.89k|        auto is_full = size_ >= branches<BL>;
  990|  1.89k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (990:16): [True: 1.89k, False: 0]
  ------------------
  991|  1.89k|                       : make_leaf_sub_pos(child, size_).visit(v, args...);
  992|  1.89k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
  144|  4.70k|    {
  145|  4.70k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.70k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1647|  10.3M|    {
 1648|  10.3M|        each_right(v, 1, std::forward<Args>(args)...);
 1649|  10.3M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
 1653|  10.3M|    {
 1654|  10.3M|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 10.3M, False: 0]
  ------------------
 1655|  10.3M|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 10.3M, False: 0]
  ------------------
 1656|  10.3M|        auto s = relaxed_->d.sizes[start - 1];
 1657|  10.3M|        auto p = node_->inner();
 1658|  10.3M|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 722k, False: 9.67M]
  ------------------
 1659|  3.63M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 2.91M, False: 722k]
  ------------------
 1660|  2.91M|                IMMER_PREFETCH(p + i + 1);
 1661|  2.91M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  2.91M|                    .visit(v, args...);
 1663|  2.91M|                s = relaxed_->d.sizes[i];
 1664|  2.91M|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 2.91M, False: 0]
  ------------------
 1665|  2.91M|            }
 1666|  9.67M|        } else {
 1667|  9.67M|            auto ss = shift_ - B;
 1668|  70.3M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 60.7M, False: 9.67M]
  ------------------
 1669|  60.7M|                visit_maybe_relaxed_sub(
 1670|  60.7M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|  60.7M|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 60.7M, False: 0]
  ------------------
 1673|  60.7M|            }
 1674|  9.67M|        }
 1675|  10.3M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEDcPT_jmT0_DpOT1_:
 1838|   104M|{
 1839|   104M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 104M, False: 0]
  ------------------
 1840|   104M|    auto relaxed = node->relaxed();
 1841|   104M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 99.7M, False: 4.44M]
  ------------------
 1842|  99.7M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 99.7M, False: 0]
  ------------------
 1843|  99.7M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  99.7M|            .visit(v, std::forward<Args>(args)...);
 1845|  99.7M|    } else {
 1846|  4.44M|        return make_regular_sub_pos(node, shift, size)
 1847|  4.44M|            .visit(v, std::forward<Args>(args)...);
 1848|  4.44M|    }
 1849|   104M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14each_right_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1647|  10.3M|    {
 1648|  10.3M|        each_right(v, 1, std::forward<Args>(args)...);
 1649|  10.3M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
 1653|  10.3M|    {
 1654|  10.3M|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 10.3M, False: 0]
  ------------------
 1655|  10.3M|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 10.3M, False: 0]
  ------------------
 1656|  10.3M|        auto s = relaxed_->d.sizes[start - 1];
 1657|  10.3M|        auto p = node_->inner();
 1658|  10.3M|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 722k, False: 9.67M]
  ------------------
 1659|  3.63M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 2.91M, False: 722k]
  ------------------
 1660|  2.91M|                IMMER_PREFETCH(p + i + 1);
 1661|  2.91M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  2.91M|                    .visit(v, args...);
 1663|  2.91M|                s = relaxed_->d.sizes[i];
 1664|  2.91M|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 2.91M, False: 0]
  ------------------
 1665|  2.91M|            }
 1666|  9.67M|        } else {
 1667|  9.67M|            auto ss = shift_ - B;
 1668|  70.3M|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 60.7M, False: 9.67M]
  ------------------
 1669|  60.7M|                visit_maybe_relaxed_sub(
 1670|  60.7M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|  60.7M|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 60.7M, False: 0]
  ------------------
 1673|  60.7M|            }
 1674|  9.67M|        }
 1675|  10.3M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|   104M|{
 1839|   104M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 104M, False: 0]
  ------------------
 1840|   104M|    auto relaxed = node->relaxed();
 1841|   104M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 99.7M, False: 4.44M]
  ------------------
 1842|  99.7M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 99.7M, False: 0]
  ------------------
 1843|  99.7M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  99.7M|            .visit(v, std::forward<Args>(args)...);
 1845|  99.7M|    } else {
 1846|  4.44M|        return make_regular_sub_pos(node, shift, size)
 1847|  4.44M|            .visit(v, std::forward<Args>(args)...);
 1848|  4.44M|    }
 1849|   104M|}
_ZN5immer6detail4rbts25singleton_regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  753|  4.70k|    {
  754|  4.70k|        return make_leaf_sub_pos(leaf_, count_).visit(v, args...);
  755|  4.70k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_14empty_leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  144|  4.70k|    {
  145|  4.70k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.70k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1774|  4.70k|    {
 1775|  4.70k|        assert(shift_ == BL);
  ------------------
  |  Branch (1775:9): [True: 4.70k, False: 0]
  ------------------
 1776|  4.70k|        auto child      = node_->inner()[0];
 1777|  4.70k|        auto child_size = relaxed_->d.sizes[0];
 1778|  4.70k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1779|  4.70k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_25singleton_regular_sub_posISC_EERNS1_14empty_leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  2.25k|    {
 1037|  2.25k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.25k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcPT_jmT0_DpOT1_:
 1838|  1.15M|{
 1839|  1.15M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.15M, False: 0]
  ------------------
 1840|  1.15M|    auto relaxed = node->relaxed();
 1841|  1.15M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.14M, False: 16.5k]
  ------------------
 1842|  1.14M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.14M, False: 0]
  ------------------
 1843|  1.14M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.14M|            .visit(v, std::forward<Args>(args)...);
 1845|  1.14M|    } else {
 1846|  16.5k|        return make_regular_sub_pos(node, shift, size)
 1847|  16.5k|            .visit(v, std::forward<Args>(args)...);
 1848|  16.5k|    }
 1849|  1.15M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
 1813|  1.14M|    {
 1814|  1.14M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.14M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  1.14M|{
 1839|  1.14M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.14M, False: 0]
  ------------------
 1840|  1.14M|    auto relaxed = node->relaxed();
 1841|  1.14M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.13M, False: 7.52k]
  ------------------
 1842|  1.13M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.13M, False: 0]
  ------------------
 1843|  1.13M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.13M|            .visit(v, std::forward<Args>(args)...);
 1845|  1.13M|    } else {
 1846|  7.52k|        return make_regular_sub_pos(node, shift, size)
 1847|  7.52k|            .visit(v, std::forward<Args>(args)...);
 1848|  7.52k|    }
 1849|  1.14M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  1.13M|    {
 1814|  1.13M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.13M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1750|  3.58M|    {
 1751|  3.58M|        auto offset     = relaxed_->d.count - 1;
 1752|  3.58M|        auto child      = node_->inner()[offset];
 1753|  3.58M|        auto child_size = size(offset);
 1754|  3.58M|        auto is_leaf    = shift_ == BL;
 1755|  3.58M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 0, False: 3.58M]
  ------------------
 1756|  3.58M|                       : visit_maybe_relaxed_sub(
 1757|  3.58M|                             child, shift_ - B, child_size, v, args...);
 1758|  3.58M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  3.58M|{
 1839|  3.58M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 3.58M, False: 0]
  ------------------
 1840|  3.58M|    auto relaxed = node->relaxed();
 1841|  3.58M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 3.57M, False: 2.35k]
  ------------------
 1842|  3.57M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 3.57M, False: 0]
  ------------------
 1843|  3.57M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  3.57M|            .visit(v, std::forward<Args>(args)...);
 1845|  3.57M|    } else {
 1846|  2.35k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.35k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.35k|    }
 1849|  3.58M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1813|  3.57M|    {
 1814|  3.57M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  3.57M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
 1036|  4.87k|    {
 1037|  4.87k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.87k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  958|  2.51k|    {
  959|  2.51k|        auto offset  = count() - 1;
  960|  2.51k|        auto child   = node_->inner()[offset];
  961|  2.51k|        auto is_leaf = shift_ == BL;
  962|  2.51k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  2.51k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 0, False: 2.51k]
  ------------------
  964|  2.51k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  2.51k|                             .visit(v, args...);
  966|  2.51k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
  913|  1.61M|    {
  914|  1.61M|        each_left(v, count() - 1, args...);
  915|  1.61M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_leftINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
  873|  1.61M|    {
  874|  1.61M|        return each_left_regular(*this, v, last, args...);
  875|  1.61M|    }
_ZN5immer6detail4rbts17each_left_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvOT_T0_jDpOT1_:
  575|  1.61M|{
  576|  1.61M|    constexpr auto B  = bits<Pos>;
  577|  1.61M|    constexpr auto BL = bits_leaf<Pos>;
  578|  1.61M|    assert(last < p.count());
  ------------------
  |  Branch (578:5): [True: 1.61M, False: 0]
  ------------------
  579|  1.61M|    if (p.shift() == BL) {
  ------------------
  |  Branch (579:9): [True: 897k, False: 721k]
  ------------------
  580|   897k|        auto n = p.node()->inner();
  581|   897k|        auto e = n + last;
  582|  4.61M|        for (; n != e; ++n) {
  ------------------
  |  Branch (582:16): [True: 3.71M, False: 897k]
  ------------------
  583|  3.71M|            IMMER_PREFETCH(n + 1);
  584|  3.71M|            make_full_leaf_pos(*n).visit(v, args...);
  585|  3.71M|        }
  586|   897k|    } else {
  587|   721k|        auto n  = p.node()->inner();
  588|   721k|        auto e  = n + last;
  589|   721k|        auto ss = p.shift() - B;
  590|  1.22M|        for (; n != e; ++n)
  ------------------
  |  Branch (590:16): [True: 505k, False: 721k]
  ------------------
  591|   505k|            make_full_pos(*n, ss).visit(v, args...);
  592|   721k|    }
  593|  1.61M|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
  913|  1.61M|    {
  914|  1.61M|        each_left(v, count() - 1, args...);
  915|  1.61M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_leftINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
  873|  1.61M|    {
  874|  1.61M|        return each_left_regular(*this, v, last, args...);
  875|  1.61M|    }
_ZN5immer6detail4rbts17each_left_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21concat_merger_visitorEJRNS1_13concat_mergerISD_EEEEEvOT_T0_jDpOT1_:
  575|  1.61M|{
  576|  1.61M|    constexpr auto B  = bits<Pos>;
  577|  1.61M|    constexpr auto BL = bits_leaf<Pos>;
  578|  1.61M|    assert(last < p.count());
  ------------------
  |  Branch (578:5): [True: 1.61M, False: 0]
  ------------------
  579|  1.61M|    if (p.shift() == BL) {
  ------------------
  |  Branch (579:9): [True: 897k, False: 721k]
  ------------------
  580|   897k|        auto n = p.node()->inner();
  581|   897k|        auto e = n + last;
  582|  4.61M|        for (; n != e; ++n) {
  ------------------
  |  Branch (582:16): [True: 3.71M, False: 897k]
  ------------------
  583|  3.71M|            IMMER_PREFETCH(n + 1);
  584|  3.71M|            make_full_leaf_pos(*n).visit(v, args...);
  585|  3.71M|        }
  586|   897k|    } else {
  587|   721k|        auto n  = p.node()->inner();
  588|   721k|        auto e  = n + last;
  589|   721k|        auto ss = p.shift() - B;
  590|  1.22M|        for (; n != e; ++n)
  ------------------
  |  Branch (590:16): [True: 505k, False: 721k]
  ------------------
  591|   505k|            make_full_pos(*n, ss).visit(v, args...);
  592|   721k|    }
  593|  1.61M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  1.58M|    {
 1763|  1.58M|        auto child      = node_->inner()[0];
 1764|  1.58M|        auto child_size = relaxed_->d.sizes[0];
 1765|  1.58M|        auto is_leaf    = shift_ == BL;
 1766|  1.58M|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 1.58M, False: 0]
  ------------------
 1767|  1.58M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 1.58M]
  ------------------
 1768|  1.58M|                       : visit_maybe_relaxed_sub(
 1769|  1.58M|                             child, shift_ - B, child_size, v, args...);
 1770|  1.58M|    }
_ZNK5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5shiftEv:
  106|  1.15M|    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_policyELb1ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  1.58M|{
 1839|  1.58M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.58M, False: 0]
  ------------------
 1840|  1.58M|    auto relaxed = node->relaxed();
 1841|  1.58M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.16M, False: 421k]
  ------------------
 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|   421k|        return make_regular_sub_pos(node, shift, size)
 1847|   421k|            .visit(v, std::forward<Args>(args)...);
 1848|   421k|    }
 1849|  1.58M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|   421k|    {
 1037|   421k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   421k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
  958|    881|    {
  959|    881|        auto offset  = count() - 1;
  960|    881|        auto child   = node_->inner()[offset];
  961|    881|        auto is_leaf = shift_ == BL;
  962|    881|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|    881|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 0, False: 881]
  ------------------
  964|    881|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|    881|                             .visit(v, args...);
  966|    881|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1036|  1.28k|    {
 1037|  1.28k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.28k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  970|  14.9k|    {
  971|  14.9k|        auto is_leaf = shift_ == BL;
  972|  14.9k|        auto child   = node_->inner()[0];
  973|  14.9k|        auto is_full = size_ >= (size_t{1} << shift_);
  974|  14.9k|        return is_full
  ------------------
  |  Branch (974:16): [True: 14.9k, False: 0]
  ------------------
  975|  14.9k|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 14.9k]
  ------------------
  976|  14.9k|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|  14.9k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|  14.9k|                   : (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|  14.9k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1405|  20.4k|    {
 1406|  20.4k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  20.4k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1361|  5.49k|    {
 1362|  5.49k|        auto is_leaf = shift_ == BL;
 1363|  5.49k|        auto child   = node_->inner()[0];
 1364|  5.49k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 5.49k]
  ------------------
 1365|  5.49k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|  5.49k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  958|  20.2k|    {
  959|  20.2k|        auto offset  = count() - 1;
  960|  20.2k|        auto child   = node_->inner()[offset];
  961|  20.2k|        auto is_leaf = shift_ == BL;
  962|  20.2k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|  20.2k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 15.1k, False: 5.06k]
  ------------------
  964|  20.2k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  5.06k|                             .visit(v, args...);
  966|  20.2k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
  144|  16.0k|    {
  145|  16.0k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  16.0k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1370|  16.0k|    {
 1371|  16.0k|        assert(shift_ == BL);
  ------------------
  |  Branch (1371:9): [True: 16.0k, False: 0]
  ------------------
 1372|  16.0k|        auto child = node_->inner()[0];
 1373|  16.0k|        return make_full_leaf_pos(child).visit(v, args...);
 1374|  16.0k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  207|   439k|    {
  208|   439k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   439k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1036|  5.27k|    {
 1037|  5.27k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  5.27k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
  958|   431k|    {
  959|   431k|        auto offset  = count() - 1;
  960|   431k|        auto child   = node_->inner()[offset];
  961|   431k|        auto is_leaf = shift_ == BL;
  962|   431k|        auto lsize   = size_ - (size_t{offset} << shift_);
  963|   431k|        return is_leaf ? make_leaf_sub_pos(child, lsize).visit(v, args...)
  ------------------
  |  Branch (963:16): [True: 420k, False: 10.5k]
  ------------------
  964|   431k|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|  10.5k|                             .visit(v, args...);
  966|   431k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
  144|   423k|    {
  145|   423k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   423k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  986|   423k|    {
  987|   423k|        assert(shift_ == BL);
  ------------------
  |  Branch (987:9): [True: 423k, False: 0]
  ------------------
  988|   423k|        auto child   = node_->inner()[0];
  989|   423k|        auto is_full = size_ >= branches<BL>;
  990|   423k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (990:16): [True: 423k, False: 0]
  ------------------
  991|   423k|                       : make_leaf_sub_pos(child, size_).visit(v, args...);
  992|   423k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  144|   717k|    {
  145|   717k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   717k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1036|  14.4k|    {
 1037|  14.4k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  14.4k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_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: 461k, False: 702k]
  ------------------
  964|  1.16M|                       : make_regular_sub_pos(child, shift_ - B, lsize)
  965|   702k|                             .visit(v, args...);
  966|  1.16M|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
  144|   717k|    {
  145|   717k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   717k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14first_sub_leafINS1_20concat_right_visitorISC_EEJRNS1_12leaf_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1774|   717k|    {
 1775|   717k|        assert(shift_ == BL);
  ------------------
  |  Branch (1775:9): [True: 717k, False: 0]
  ------------------
 1776|   717k|        auto child      = node_->inner()[0];
 1777|   717k|        auto child_size = relaxed_->d.sizes[0];
 1778|   717k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1779|   717k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcT_DpOT0_:
 1036|  1.57M|    {
 1037|  1.57M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.57M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_DpOT0_:
 1617|  12.7M|    {
 1618|  12.7M|        each_left(v, relaxed_->d.count - 1, args...);
 1619|  12.7M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_leftINS1_34concat_rebalance_plan_fill_visitorEJRNS1_21concat_rebalance_planILj3ELj3EEEEEEvT_jDpOT0_:
 1623|  12.7M|    {
 1624|  12.7M|        auto p = node_->inner();
 1625|  12.7M|        auto s = size_t{};
 1626|  12.7M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 259k, False: 12.5M]
  ------------------
 1627|  1.79M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 1.53M, False: 259k]
  ------------------
 1628|  1.53M|                IMMER_PREFETCH(p + i + 1);
 1629|  1.53M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  1.53M|                    .visit(v, args...);
 1631|  1.53M|                s = relaxed_->d.sizes[i];
 1632|  1.53M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 1.53M, False: 0]
  ------------------
 1633|  1.53M|            }
 1634|  12.5M|        } else {
 1635|  12.5M|            auto ss = shift_ - B;
 1636|  56.0M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 43.5M, False: 12.5M]
  ------------------
 1637|  43.5M|                visit_maybe_relaxed_sub(
 1638|  43.5M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|  43.5M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 43.5M, False: 0]
  ------------------
 1641|  43.5M|            }
 1642|  12.5M|        }
 1643|  12.7M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_left_subINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_DpOT0_:
 1617|  12.7M|    {
 1618|  12.7M|        each_left(v, relaxed_->d.count - 1, args...);
 1619|  12.7M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_leftINS1_21concat_merger_visitorEJRNS1_13concat_mergerISC_EEEEEvT_jDpOT0_:
 1623|  12.7M|    {
 1624|  12.7M|        auto p = node_->inner();
 1625|  12.7M|        auto s = size_t{};
 1626|  12.7M|        if (shift_ == BL) {
  ------------------
  |  Branch (1626:13): [True: 259k, False: 12.5M]
  ------------------
 1627|  1.79M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1627:39): [True: 1.53M, False: 259k]
  ------------------
 1628|  1.53M|                IMMER_PREFETCH(p + i + 1);
 1629|  1.53M|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1630|  1.53M|                    .visit(v, args...);
 1631|  1.53M|                s = relaxed_->d.sizes[i];
 1632|  1.53M|                assert(s);
  ------------------
  |  Branch (1632:17): [True: 1.53M, False: 0]
  ------------------
 1633|  1.53M|            }
 1634|  12.5M|        } else {
 1635|  12.5M|            auto ss = shift_ - B;
 1636|  56.0M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1636:39): [True: 43.5M, False: 12.5M]
  ------------------
 1637|  43.5M|                visit_maybe_relaxed_sub(
 1638|  43.5M|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1639|  43.5M|                s = relaxed_->d.sizes[i];
 1640|       |                assert(s);
  ------------------
  |  Branch (1640:17): [True: 43.5M, False: 0]
  ------------------
 1641|  43.5M|            }
 1642|  12.5M|        }
 1643|  12.7M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1762|  8.07M|    {
 1763|  8.07M|        auto child      = node_->inner()[0];
 1764|  8.07M|        auto child_size = relaxed_->d.sizes[0];
 1765|  8.07M|        auto is_leaf    = shift_ == BL;
 1766|  8.07M|        assert(child_size);
  ------------------
  |  Branch (1766:9): [True: 8.07M, False: 0]
  ------------------
 1767|  8.07M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1767:16): [True: 0, False: 8.07M]
  ------------------
 1768|  8.07M|                       : visit_maybe_relaxed_sub(
 1769|  8.07M|                             child, shift_ - B, child_size, v, args...);
 1770|  8.07M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  8.07M|{
 1839|  8.07M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 8.07M, False: 0]
  ------------------
 1840|  8.07M|    auto relaxed = node->relaxed();
 1841|  8.07M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 8.07M, False: 768]
  ------------------
 1842|  8.07M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 8.07M, False: 0]
  ------------------
 1843|  8.07M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  8.07M|            .visit(v, std::forward<Args>(args)...);
 1845|  8.07M|    } else {
 1846|    768|        return make_regular_sub_pos(node, shift, size)
 1847|    768|            .visit(v, std::forward<Args>(args)...);
 1848|    768|    }
 1849|  8.07M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  8.07M|    {
 1814|  8.07M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  8.07M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|    768|    {
 1037|    768|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    768|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1750|  11.0k|    {
 1751|  11.0k|        auto offset     = relaxed_->d.count - 1;
 1752|  11.0k|        auto child      = node_->inner()[offset];
 1753|  11.0k|        auto child_size = size(offset);
 1754|  11.0k|        auto is_leaf    = shift_ == BL;
 1755|  11.0k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 0, False: 11.0k]
  ------------------
 1756|  11.0k|                       : visit_maybe_relaxed_sub(
 1757|  11.0k|                             child, shift_ - B, child_size, v, args...);
 1758|  11.0k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  11.0k|{
 1839|  11.0k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 11.0k, False: 0]
  ------------------
 1840|  11.0k|    auto relaxed = node->relaxed();
 1841|  11.0k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 10.6k, False: 407]
  ------------------
 1842|  10.6k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 10.6k, False: 0]
  ------------------
 1843|  10.6k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  10.6k|            .visit(v, std::forward<Args>(args)...);
 1845|  10.6k|    } else {
 1846|    407|        return make_regular_sub_pos(node, shift, size)
 1847|    407|            .visit(v, std::forward<Args>(args)...);
 1848|    407|    }
 1849|  11.0k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_left_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1813|  10.6k|    {
 1814|  10.6k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  10.6k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
  970|  1.06k|    {
  971|  1.06k|        auto is_leaf = shift_ == BL;
  972|  1.06k|        auto child   = node_->inner()[0];
  973|  1.06k|        auto is_full = size_ >= (size_t{1} << shift_);
  974|  1.06k|        return is_full
  ------------------
  |  Branch (974:16): [True: 1.06k, False: 0]
  ------------------
  975|  1.06k|                   ? (is_leaf
  ------------------
  |  Branch (975:23): [True: 0, False: 1.06k]
  ------------------
  976|  1.06k|                          ? make_full_leaf_pos(child).visit(v, args...)
  977|  1.06k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
  978|  1.06k|                   : (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|  1.06k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1405|  1.50k|    {
 1406|  1.50k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.50k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9first_subINS1_20concat_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1361|    448|    {
 1362|    448|        auto is_leaf = shift_ == BL;
 1363|    448|        auto child   = node_->inner()[0];
 1364|    448|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1364:16): [True: 0, False: 448]
  ------------------
 1365|    448|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1366|    448|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1750|  1.31k|    {
 1751|  1.31k|        auto offset     = relaxed_->d.count - 1;
 1752|  1.31k|        auto child      = node_->inner()[offset];
 1753|  1.31k|        auto child_size = size(offset);
 1754|  1.31k|        auto is_leaf    = shift_ == BL;
 1755|  1.31k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 855, False: 458]
  ------------------
 1756|  1.31k|                       : visit_maybe_relaxed_sub(
 1757|    458|                             child, shift_ - B, child_size, v, args...);
 1758|  1.31k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|    458|{
 1839|    458|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 458, False: 0]
  ------------------
 1840|    458|    auto relaxed = node->relaxed();
 1841|    458|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 252, False: 206]
  ------------------
 1842|    252|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 252, False: 0]
  ------------------
 1843|    252|        return make_relaxed_pos(node, shift, relaxed)
 1844|    252|            .visit(v, std::forward<Args>(args)...);
 1845|    252|    } else {
 1846|    206|        return make_regular_sub_pos(node, shift, size)
 1847|    206|            .visit(v, std::forward<Args>(args)...);
 1848|    206|    }
 1849|    458|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_8full_posISC_EEEEEDcT_DpOT0_:
 1813|    252|    {
 1814|    252|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    252|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1750|  7.29k|    {
 1751|  7.29k|        auto offset     = relaxed_->d.count - 1;
 1752|  7.29k|        auto child      = node_->inner()[offset];
 1753|  7.29k|        auto child_size = size(offset);
 1754|  7.29k|        auto is_leaf    = shift_ == BL;
 1755|  7.29k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 2.88k, False: 4.40k]
  ------------------
 1756|  7.29k|                       : visit_maybe_relaxed_sub(
 1757|  4.40k|                             child, shift_ - B, child_size, v, args...);
 1758|  7.29k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  4.40k|{
 1839|  4.40k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 4.40k, False: 0]
  ------------------
 1840|  4.40k|    auto relaxed = node->relaxed();
 1841|  4.40k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 465, False: 3.94k]
  ------------------
 1842|    465|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 465, False: 0]
  ------------------
 1843|    465|        return make_relaxed_pos(node, shift, relaxed)
 1844|    465|            .visit(v, std::forward<Args>(args)...);
 1845|  3.94k|    } else {
 1846|  3.94k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.94k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.94k|    }
 1849|  4.40k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_15regular_sub_posISC_EEEEEDcT_DpOT0_:
 1813|    465|    {
 1814|    465|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    465|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE8last_subINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1750|  9.16M|    {
 1751|  9.16M|        auto offset     = relaxed_->d.count - 1;
 1752|  9.16M|        auto child      = node_->inner()[offset];
 1753|  9.16M|        auto child_size = size(offset);
 1754|  9.16M|        auto is_leaf    = shift_ == BL;
 1755|  9.16M|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1755:16): [True: 255k, False: 8.90M]
  ------------------
 1756|  9.16M|                       : visit_maybe_relaxed_sub(
 1757|  8.90M|                             child, shift_ - B, child_size, v, args...);
 1758|  9.16M|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERNS1_11relaxed_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  8.90M|{
 1839|  8.90M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 8.90M, False: 0]
  ------------------
 1840|  8.90M|    auto relaxed = node->relaxed();
 1841|  8.90M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 8.03M, False: 874k]
  ------------------
 1842|  8.03M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 8.03M, False: 0]
  ------------------
 1843|  8.03M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  8.03M|            .visit(v, std::forward<Args>(args)...);
 1845|  8.03M|    } else {
 1846|   874k|        return make_regular_sub_pos(node, shift, size)
 1847|   874k|            .visit(v, std::forward<Args>(args)...);
 1848|   874k|    }
 1849|  8.90M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_19concat_both_visitorISC_EEJRNS1_8leaf_posISC_EERSD_EEEDcT_DpOT0_:
 1813|  8.03M|    {
 1814|  8.03M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  8.03M|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_11relaxed_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  7.52k|    {
 1037|  7.52k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  7.52k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_25concat_trees_left_visitorISC_EEJNS1_8leaf_posISC_EERPSC_RjRmEEEDcT_DpOT0_:
 1036|  16.5k|    {
 1037|  16.5k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  16.5k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_26concat_trees_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcPT_jmT0_DpOT1_:
 1838|  16.5k|{
 1839|  16.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 16.5k, False: 0]
  ------------------
 1840|  16.5k|    auto relaxed = node->relaxed();
 1841|  16.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 6.79k, False: 9.72k]
  ------------------
 1842|  6.79k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 6.79k, False: 0]
  ------------------
 1843|  6.79k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  6.79k|            .visit(v, std::forward<Args>(args)...);
 1845|  9.72k|    } else {
 1846|  9.72k|        return make_regular_sub_pos(node, shift, size)
 1847|  9.72k|            .visit(v, std::forward<Args>(args)...);
 1848|  9.72k|    }
 1849|  16.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRNS1_15regular_sub_posISC_EERNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1813|  6.79k|    {
 1814|  6.79k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  6.79k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_26concat_trees_right_visitorISC_EEJRSD_RNS1_8leaf_posISC_EEEEEDcT_DpOT0_:
 1036|  9.72k|    {
 1037|  9.72k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  9.72k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1813|   219k|    {
 1814|   219k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   219k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11last_oh_cshINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_jmDpOT0_:
 1737|   213k|    {
 1738|   213k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 213k, False: 0]
  ------------------
 1739|   213k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 213k, False: 0]
  ------------------
 1740|   213k|        auto child   = node_->inner()[offset_hint];
 1741|   213k|        auto is_leaf = shift_ == BL;
 1742|   213k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 213k]
  ------------------
 1743|   213k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|   213k|                   : visit_maybe_relaxed_sub(
 1745|   213k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|   213k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|   213k|{
 1839|   213k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 213k, False: 0]
  ------------------
 1840|   213k|    auto relaxed = node->relaxed();
 1841|   213k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 38.8k, False: 174k]
  ------------------
 1842|  38.8k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 38.8k, False: 0]
  ------------------
 1843|  38.8k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  38.8k|            .visit(v, std::forward<Args>(args)...);
 1845|   174k|    } else {
 1846|   174k|        return make_regular_sub_pos(node, shift, size)
 1847|   174k|            .visit(v, std::forward<Args>(args)...);
 1848|   174k|    }
 1849|   213k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1036|   174k|    {
 1037|   174k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   174k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  952|   354k|    {
  953|   354k|        return last_oh_regular(*this, v, offset_hint, args...);
  954|   354k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb1EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|   354k|{
  678|   354k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 354k, False: 0]
  ------------------
  679|   354k|    constexpr auto B  = bits<Pos>;
  680|   354k|    constexpr auto BL = bits_leaf<Pos>;
  681|   354k|    auto child        = p.node()->inner()[offset_hint];
  682|   354k|    auto is_leaf      = p.shift() == BL;
  683|   354k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 354k]
  ------------------
  684|   354k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|   354k|                         .visit(v, args...);
  686|   354k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
  336|  1.14M|    {
  337|  1.14M|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  1.14M|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  330|   785k|    {
  331|   785k|        return last_oh_regular(*this, v, offset_hint, args...);
  332|   785k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb1EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|   785k|{
  678|   785k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 785k, False: 0]
  ------------------
  679|   785k|    constexpr auto B  = bits<Pos>;
  680|   785k|    constexpr auto BL = bits_leaf<Pos>;
  681|   785k|    auto child        = p.node()->inner()[offset_hint];
  682|   785k|    auto is_leaf      = p.shift() == BL;
  683|   785k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 785k]
  ------------------
  684|   785k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|   785k|                         .visit(v, args...);
  686|   785k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  330|  2.68k|    {
  331|  2.68k|        return last_oh_regular(*this, v, offset_hint, args...);
  332|  2.68k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb0EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|  2.68k|{
  678|  2.68k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 2.68k, False: 0]
  ------------------
  679|  2.68k|    constexpr auto B  = bits<Pos>;
  680|  2.68k|    constexpr auto BL = bits_leaf<Pos>;
  681|  2.68k|    auto child        = p.node()->inner()[offset_hint];
  682|  2.68k|    auto is_leaf      = p.shift() == BL;
  683|  2.68k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 2.68k]
  ------------------
  684|  2.68k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  2.68k|                         .visit(v, args...);
  686|  2.68k|}
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
  336|  4.30k|    {
  337|  4.30k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  4.30k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7last_ohINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_jDpOT0_:
  952|  1.62k|    {
  953|  1.62k|        return last_oh_regular(*this, v, offset_hint, args...);
  954|  1.62k|    }
_ZN5immer6detail4rbts15last_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_21push_tail_mut_visitorISD_Lb0EEEJRNSB_5applyIS8_E4type4editERPSD_EEEDcOT_T0_jDpOT1_:
  677|  1.62k|{
  678|  1.62k|    assert(offset_hint == p.count() - 1);
  ------------------
  |  Branch (678:5): [True: 1.62k, False: 0]
  ------------------
  679|  1.62k|    constexpr auto B  = bits<Pos>;
  680|  1.62k|    constexpr auto BL = bits_leaf<Pos>;
  681|  1.62k|    auto child        = p.node()->inner()[offset_hint];
  682|  1.62k|    auto is_leaf      = p.shift() == BL;
  683|  1.62k|    return is_leaf ? make_leaf_pos(child, p.size()).visit(v, args...)
  ------------------
  |  Branch (683:12): [True: 0, False: 1.62k]
  ------------------
  684|  1.62k|                   : make_regular_pos(child, p.shift() - B, p.size())
  685|  1.62k|                         .visit(v, args...);
  686|  1.62k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE11last_oh_cshINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_jmDpOT0_:
 1737|  8.46k|    {
 1738|  8.46k|        assert(offset_hint == count() - 1);
  ------------------
  |  Branch (1738:9): [True: 8.46k, False: 0]
  ------------------
 1739|  8.46k|        assert(child_size_hint == size(offset_hint));
  ------------------
  |  Branch (1739:9): [True: 8.46k, False: 0]
  ------------------
 1740|  8.46k|        auto child   = node_->inner()[offset_hint];
 1741|  8.46k|        auto is_leaf = shift_ == BL;
 1742|  8.46k|        return is_leaf
  ------------------
  |  Branch (1742:16): [True: 0, False: 8.46k]
  ------------------
 1743|  8.46k|                   ? make_leaf_sub_pos(child, child_size_hint).visit(v, args...)
 1744|  8.46k|                   : visit_maybe_relaxed_sub(
 1745|  8.46k|                         child, shift_ - B, child_size_hint, v, args...);
 1746|  8.46k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcPT_jmT0_DpOT1_:
 1838|  8.46k|{
 1839|  8.46k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 8.46k, False: 0]
  ------------------
 1840|  8.46k|    auto relaxed = node->relaxed();
 1841|  8.46k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 7.40k, False: 1.06k]
  ------------------
 1842|  7.40k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 7.40k, False: 0]
  ------------------
 1843|  7.40k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  7.40k|            .visit(v, std::forward<Args>(args)...);
 1845|  7.40k|    } else {
 1846|  1.06k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.06k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.06k|    }
 1849|  8.46k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1813|  7.40k|    {
 1814|  7.40k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  7.40k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb0EEEJRNSA_5applyIS7_E4type4editERPSC_RjEEEDcT_DpOT0_:
 1036|  1.06k|    {
 1037|  1.06k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.06k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_21push_tail_mut_visitorISC_Lb1EEEJRNSA_5applyIS7_E4type4editERPSC_EEEDcT_DpOT0_:
 1036|   192k|    {
 1037|   192k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   192k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcPT_jmT0_DpOT1_:
 1838|  20.8k|{
 1839|  20.8k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 20.8k, False: 0]
  ------------------
 1840|  20.8k|    auto relaxed = node->relaxed();
 1841|  20.8k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 18.0k, False: 2.82k]
  ------------------
 1842|  18.0k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 18.0k, False: 0]
  ------------------
 1843|  18.0k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  18.0k|            .visit(v, std::forward<Args>(args)...);
 1845|  18.0k|    } else {
 1846|  2.82k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.82k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.82k|    }
 1849|  20.8k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_DpOT0_:
 1813|  18.0k|    {
 1814|  18.0k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  18.0k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjDpOT0_:
 1686|   108k|    {
 1687|   108k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 108k, False: 0]
  ------------------
 1688|   108k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 22.4k, False: 85.6k]
  ------------------
 1689|   108k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|   108k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjmDpOT0_:
 1698|   108k|    {
 1699|   108k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|   108k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjmDpOT0_:
 1717|   108k|    {
 1718|   108k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 108k, False: 0]
  ------------------
 1719|   108k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 22.4k, False: 85.6k]
  |  Branch (1719:9): [True: 108k, False: 0]
  ------------------
 1720|   108k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   108k|        auto child     = node_->inner()[offset_hint];
 1722|   108k|        auto is_leaf   = shift_ == BL;
 1723|   108k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   108k|        auto next_idx  = idx - left_size_hint;
 1725|   108k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 16.1k, False: 91.9k]
  ------------------
 1726|   108k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  16.1k|                         .visit(v, next_idx, args...)
 1728|   108k|                   : visit_maybe_relaxed_sub(
 1729|  91.9k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   108k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  144|  16.1k|    {
  145|  16.1k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  16.1k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcPT_jmT0_DpOT1_:
 1838|  91.9k|{
 1839|  91.9k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 91.9k, False: 0]
  ------------------
 1840|  91.9k|    auto relaxed = node->relaxed();
 1841|  91.9k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 90.1k, False: 1.85k]
  ------------------
 1842|  90.1k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 90.1k, False: 0]
  ------------------
 1843|  90.1k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  90.1k|            .visit(v, std::forward<Args>(args)...);
 1845|  90.1k|    } else {
 1846|  1.85k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.85k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.85k|    }
 1849|  91.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1813|  90.1k|    {
 1814|  90.1k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  90.1k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1036|  1.85k|    {
 1037|  1.85k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.85k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
  938|  4.68k|    {
  939|  4.68k|        return towards_oh_ch_regular(
  940|  4.68k|            *this, v, idx, offset_hint, count(), args...);
  941|  4.68k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_15get_mut_visitorISD_EEJRNSB_5applyIS8_E4type4editERPPSD_EEEDcOT_T0_mjjDpOT1_:
  632|  4.68k|{
  633|  4.68k|    constexpr auto B  = bits<Pos>;
  634|  4.68k|    constexpr auto BL = bits_leaf<Pos>;
  635|  4.68k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 4.68k, False: 0]
  ------------------
  636|  4.68k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 4.68k, False: 0]
  ------------------
  637|  4.68k|    auto is_leaf = p.shift() == BL;
  638|  4.68k|    auto child   = p.node()->inner()[offset_hint];
  639|  4.68k|    auto is_full = offset_hint + 1 != count_hint;
  640|  4.68k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.04k, False: 2.63k]
  ------------------
  641|  4.68k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 966, False: 1.08k]
  ------------------
  642|  2.04k|                          : make_full_pos(child, p.shift() - B)
  643|  1.08k|                                .visit(v, idx, args...))
  644|  4.68k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.34k, False: 1.28k]
  ------------------
  645|  2.63k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  2.63k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  1.28k|                            .visit(v, idx, args...));
  648|  4.68k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  207|  2.72k|    {
  208|  2.72k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  2.72k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
 1405|  2.03k|    {
 1406|  2.03k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.03k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
 1329|  2.03k|    {
 1330|  2.03k|        return towards_oh(v, idx, offset_hint, args...);
 1331|  2.03k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_mjDpOT0_:
 1336|  2.03k|    {
 1337|  2.03k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 2.03k, False: 0]
  ------------------
 1338|  2.03k|        auto is_leaf = shift_ == BL;
 1339|  2.03k|        auto child   = node_->inner()[offset_hint];
 1340|  2.03k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 1.36k, False: 667]
  ------------------
 1341|  2.03k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  2.03k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  2.03k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  112|  1.95k|    {
  113|  1.95k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  1.95k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editERPPSC_EEEDcT_DpOT0_:
  336|  1.78k|    {
  337|  1.78k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  1.78k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13towards_oh_chINS1_15get_mut_visitorISC_EEJRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_mjjDpOT0_:
  316|  1.78k|    {
  317|  1.78k|        return towards_oh_ch_regular(
  318|  1.78k|            *this, v, idx, offset_hint, count(), args...);
  319|  1.78k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_15get_mut_visitorISD_EEJRNSB_5applyIS8_E4type4editERPPSD_EEEDcOT_T0_mjjDpOT1_:
  632|  1.78k|{
  633|  1.78k|    constexpr auto B  = bits<Pos>;
  634|  1.78k|    constexpr auto BL = bits_leaf<Pos>;
  635|  1.78k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 1.78k, False: 0]
  ------------------
  636|  1.78k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 1.78k, False: 0]
  ------------------
  637|  1.78k|    auto is_leaf = p.shift() == BL;
  638|  1.78k|    auto child   = p.node()->inner()[offset_hint];
  639|  1.78k|    auto is_full = offset_hint + 1 != count_hint;
  640|  1.78k|    return is_full
  ------------------
  |  Branch (640:12): [True: 674, False: 1.11k]
  ------------------
  641|  1.78k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 394, False: 280]
  ------------------
  642|    674|                          : make_full_pos(child, p.shift() - B)
  643|    280|                                .visit(v, idx, args...))
  644|  1.78k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 608, False: 505]
  ------------------
  645|  1.11k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  1.11k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    505|                            .visit(v, idx, args...));
  648|  1.78k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_15get_mut_visitorISC_EEJRmRNSA_5applyIS7_E4type4editEPPSC_EEEDcT_DpOT0_:
 1036|  2.82k|    {
 1037|  2.82k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.82k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  48.5k|{
 1839|  48.5k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 48.5k, False: 0]
  ------------------
 1840|  48.5k|    auto relaxed = node->relaxed();
 1841|  48.5k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 35.8k, False: 12.7k]
  ------------------
 1842|  35.8k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 35.8k, False: 0]
  ------------------
 1843|  35.8k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  35.8k|            .visit(v, std::forward<Args>(args)...);
 1845|  35.8k|    } else {
 1846|  12.7k|        return make_regular_sub_pos(node, shift, size)
 1847|  12.7k|            .visit(v, std::forward<Args>(args)...);
 1848|  12.7k|    }
 1849|  48.5k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  35.8k|    {
 1814|  35.8k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  35.8k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  19.2k|    {
 1687|  19.2k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 19.2k, False: 0]
  ------------------
 1688|  19.2k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 19.2k]
  ------------------
 1689|  19.2k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  19.2k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  19.2k|    {
 1699|  19.2k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  19.2k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  19.2k|    {
 1718|  19.2k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 19.2k, False: 0]
  ------------------
 1719|  19.2k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 19.2k]
  |  Branch (1719:9): [True: 19.2k, False: 0]
  ------------------
 1720|  19.2k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  19.2k|        auto child     = node_->inner()[offset_hint];
 1722|  19.2k|        auto is_leaf   = shift_ == BL;
 1723|  19.2k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  19.2k|        auto next_idx  = idx - left_size_hint;
 1725|  19.2k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 847, False: 18.3k]
  ------------------
 1726|  19.2k|                   ? make_leaf_sub_pos(child, next_size)
 1727|    847|                         .visit(v, next_idx, args...)
 1728|  19.2k|                   : visit_maybe_relaxed_sub(
 1729|  18.3k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  19.2k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|    847|    {
  145|    847|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    847|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  15.4k|    {
 1687|  15.4k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 15.4k, False: 0]
  ------------------
 1688|  15.4k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 0, False: 15.4k]
  ------------------
 1689|  15.4k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  15.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  15.4k|    {
 1699|  15.4k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  15.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  15.4k|    {
 1718|  15.4k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 15.4k, False: 0]
  ------------------
 1719|  15.4k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 0, False: 15.4k]
  |  Branch (1719:9): [True: 15.4k, False: 0]
  ------------------
 1720|  15.4k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  15.4k|        auto child     = node_->inner()[offset_hint];
 1722|  15.4k|        auto is_leaf   = shift_ == BL;
 1723|  15.4k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  15.4k|        auto next_idx  = idx - left_size_hint;
 1725|  15.4k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 1.05k, False: 14.4k]
  ------------------
 1726|  15.4k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  1.05k|                         .visit(v, next_idx, args...)
 1728|  15.4k|                   : visit_maybe_relaxed_sub(
 1729|  14.4k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  15.4k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  1.05k|    {
  145|  1.05k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.05k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  14.4k|{
 1839|  14.4k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 14.4k, False: 0]
  ------------------
 1840|  14.4k|    auto relaxed = node->relaxed();
 1841|  14.4k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 13.1k, False: 1.24k]
  ------------------
 1842|  13.1k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 13.1k, False: 0]
  ------------------
 1843|  13.1k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  13.1k|            .visit(v, std::forward<Args>(args)...);
 1845|  13.1k|    } 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|  14.4k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  13.1k|    {
 1814|  13.1k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  13.1k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_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_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  2.59k|    {
  928|  2.59k|        return towards_oh_ch_regular(
  929|  2.59k|            *this, v, idx, offset_hint, count(), args...);
  930|  2.59k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb1ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  2.59k|{
  633|  2.59k|    constexpr auto B  = bits<Pos>;
  634|  2.59k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.59k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.59k, False: 0]
  ------------------
  636|  2.59k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.59k, False: 0]
  ------------------
  637|  2.59k|    auto is_leaf = p.shift() == BL;
  638|  2.59k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.59k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.59k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.18k, False: 410]
  ------------------
  641|  2.59k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 720, False: 1.46k]
  ------------------
  642|  2.18k|                          : make_full_pos(child, p.shift() - B)
  643|  1.46k|                                .visit(v, idx, args...))
  644|  2.59k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 410, False: 0]
  ------------------
  645|    410|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    410|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .visit(v, idx, args...));
  648|  2.59k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  1.88k|    {
  208|  1.88k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.88k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  1.75k|    {
 1406|  1.75k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.75k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  1.45k|    {
 1337|  1.45k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 1.45k, False: 0]
  ------------------
 1338|  1.45k|        auto is_leaf = shift_ == BL;
 1339|  1.45k|        auto child   = node_->inner()[offset_hint];
 1340|  1.45k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 1.16k, False: 288]
  ------------------
 1341|  1.45k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  1.45k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  1.45k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  2.30k|    {
 1337|  2.30k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 2.30k, False: 0]
  ------------------
 1338|  2.30k|        auto is_leaf = shift_ == BL;
 1339|  2.30k|        auto child   = node_->inner()[offset_hint];
 1340|  2.30k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 1.41k, False: 891]
  ------------------
 1341|  2.30k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  2.30k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  2.30k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  3.36k|    {
  208|  3.36k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  3.36k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  3.76k|    {
 1406|  3.76k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.76k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1405|  3.57k|    {
 1406|  3.57k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.57k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  9.26k|    {
 1337|  9.26k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 9.26k, False: 0]
  ------------------
 1338|  9.26k|        auto is_leaf = shift_ == BL;
 1339|  9.26k|        auto child   = node_->inner()[offset_hint];
 1340|  9.26k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 7.00k, False: 2.26k]
  ------------------
 1341|  9.26k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  9.26k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  9.26k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_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_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  4.97k|    {
 1406|  4.97k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  4.97k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1310|  3.48k|    {
 1311|  3.48k|        each_i(v, start, branches<B>, args...);
 1312|  3.48k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE6each_iINS1_11dec_visitorEJEEEvT_jjDpOT0_:
 1263|  3.48k|    {
 1264|  3.48k|        auto p = node_->inner() + i;
 1265|  3.48k|        auto e = node_->inner() + n;
 1266|  3.48k|        if (shift_ == BL) {
  ------------------
  |  Branch (1266:13): [True: 2.09k, False: 1.38k]
  ------------------
 1267|  13.9k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1267:20): [True: 11.8k, False: 2.09k]
  ------------------
 1268|  11.8k|                IMMER_PREFETCH(p + 1);
 1269|  11.8k|                make_full_leaf_pos(*p).visit(v, args...);
 1270|  11.8k|            }
 1271|  2.09k|        } else {
 1272|  1.38k|            auto ss = shift_ - B;
 1273|  10.6k|            for (; p != e; ++p)
  ------------------
  |  Branch (1273:20): [True: 9.24k, False: 1.38k]
  ------------------
 1274|  9.24k|                make_full_pos(*p, ss).visit(v, args...);
 1275|  1.38k|        }
 1276|  3.48k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|    410|    {
  113|    410|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    410|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  305|  2.68k|    {
  306|  2.68k|        return towards_oh_ch_regular(
  307|  2.68k|            *this, v, idx, offset_hint, count(), args...);
  308|  2.68k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  2.68k|{
  633|  2.68k|    constexpr auto B  = bits<Pos>;
  634|  2.68k|    constexpr auto BL = bits_leaf<Pos>;
  635|  2.68k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 2.68k, False: 0]
  ------------------
  636|  2.68k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 2.68k, False: 0]
  ------------------
  637|  2.68k|    auto is_leaf = p.shift() == BL;
  638|  2.68k|    auto child   = p.node()->inner()[offset_hint];
  639|  2.68k|    auto is_full = offset_hint + 1 != count_hint;
  640|  2.68k|    return is_full
  ------------------
  |  Branch (640:12): [True: 1.76k, False: 922]
  ------------------
  641|  2.68k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 829, False: 934]
  ------------------
  642|  1.76k|                          : make_full_pos(child, p.shift() - B)
  643|    934|                                .visit(v, idx, args...))
  644|  2.68k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 568, False: 354]
  ------------------
  645|    922|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    922|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    354|                            .visit(v, idx, args...));
  648|  2.68k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|  1.46k|    {
  113|  1.46k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  1.46k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  336|  3.71k|    {
  337|  3.71k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.71k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
  336|  1.35k|    {
  337|  1.35k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  1.35k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  305|  4.38k|    {
  306|  4.38k|        return towards_oh_ch_regular(
  307|  4.38k|            *this, v, idx, offset_hint, count(), args...);
  308|  4.38k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  4.38k|{
  633|  4.38k|    constexpr auto B  = bits<Pos>;
  634|  4.38k|    constexpr auto BL = bits_leaf<Pos>;
  635|  4.38k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 4.38k, False: 0]
  ------------------
  636|  4.38k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 4.38k, False: 0]
  ------------------
  637|  4.38k|    auto is_leaf = p.shift() == BL;
  638|  4.38k|    auto child   = p.node()->inner()[offset_hint];
  639|  4.38k|    auto is_full = offset_hint + 1 != count_hint;
  640|  4.38k|    return is_full
  ------------------
  |  Branch (640:12): [True: 2.28k, False: 2.10k]
  ------------------
  641|  4.38k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.46k, False: 822]
  ------------------
  642|  2.28k|                          : make_full_pos(child, p.shift() - B)
  643|    822|                                .visit(v, idx, args...))
  644|  4.38k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 1.36k, False: 734]
  ------------------
  645|  2.10k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  2.10k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|    734|                            .visit(v, idx, args...));
  648|  4.38k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|  2.23k|    {
  113|  2.23k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  2.23k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  336|  3.35k|    {
  337|  3.35k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.35k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
  285|  2.68k|    {
  286|  2.68k|        return each_right_regular(*this, v, start, args...);
  287|  2.68k|    }
_ZN5immer6detail4rbts18each_right_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_jDpOT1_:
  597|  2.68k|{
  598|  2.68k|    constexpr auto B  = bits<Pos>;
  599|  2.68k|    constexpr auto BL = bits_leaf<Pos>;
  600|       |
  601|  2.68k|    if (p.shift() == BL) {
  ------------------
  |  Branch (601:9): [True: 1.39k, False: 1.28k]
  ------------------
  602|  1.39k|        auto n    = p.node()->inner() + start;
  603|  1.39k|        auto last = p.count() - 1;
  604|  1.39k|        auto e    = p.node()->inner() + last;
  605|  1.39k|        if (n <= e) {
  ------------------
  |  Branch (605:13): [True: 829, False: 568]
  ------------------
  606|  2.97k|            for (; n != e; ++n) {
  ------------------
  |  Branch (606:20): [True: 2.14k, False: 829]
  ------------------
  607|  2.14k|                IMMER_PREFETCH(n + 1);
  608|  2.14k|                make_full_leaf_pos(*n).visit(v, args...);
  609|  2.14k|            }
  610|    829|            make_leaf_pos(*n, p.size()).visit(v, args...);
  611|    829|        }
  612|  1.39k|    } else {
  613|  1.28k|        auto n    = p.node()->inner() + start;
  614|  1.28k|        auto last = p.count() - 1;
  615|  1.28k|        auto e    = p.node()->inner() + last;
  616|  1.28k|        auto ss   = p.shift() - B;
  617|  1.28k|        if (n <= e) {
  ------------------
  |  Branch (617:13): [True: 934, False: 354]
  ------------------
  618|  1.99k|            for (; n != e; ++n)
  ------------------
  |  Branch (618:20): [True: 1.06k, False: 934]
  ------------------
  619|  1.06k|                make_full_pos(*n, ss).visit(v, args...);
  620|    934|            make_regular_pos(*n, ss, p.size()).visit(v, args...);
  621|    934|        }
  622|  1.28k|    }
  623|  2.68k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  7.31k|    {
  928|  7.31k|        return towards_oh_ch_regular(
  929|  7.31k|            *this, v, idx, offset_hint, count(), args...);
  930|  7.31k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  7.31k|{
  633|  7.31k|    constexpr auto B  = bits<Pos>;
  634|  7.31k|    constexpr auto BL = bits_leaf<Pos>;
  635|  7.31k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 7.31k, False: 0]
  ------------------
  636|  7.31k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 7.31k, False: 0]
  ------------------
  637|  7.31k|    auto is_leaf = p.shift() == BL;
  638|  7.31k|    auto child   = p.node()->inner()[offset_hint];
  639|  7.31k|    auto is_full = offset_hint + 1 != count_hint;
  640|  7.31k|    return is_full
  ------------------
  |  Branch (640:12): [True: 3.06k, False: 4.25k]
  ------------------
  641|  7.31k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.12k, False: 1.93k]
  ------------------
  642|  3.06k|                          : make_full_pos(child, p.shift() - B)
  643|  1.93k|                                .visit(v, idx, args...))
  644|  7.31k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 894, False: 3.36k]
  ------------------
  645|  4.25k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  4.25k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  3.36k|                            .visit(v, idx, args...));
  648|  7.31k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  7.01k|    {
  928|  7.01k|        return towards_oh_ch_regular(
  929|  7.01k|            *this, v, idx, offset_hint, count(), args...);
  930|  7.01k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  7.01k|{
  633|  7.01k|    constexpr auto B  = bits<Pos>;
  634|  7.01k|    constexpr auto BL = bits_leaf<Pos>;
  635|  7.01k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 7.01k, False: 0]
  ------------------
  636|  7.01k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 7.01k, False: 0]
  ------------------
  637|  7.01k|    auto is_leaf = p.shift() == BL;
  638|  7.01k|    auto child   = p.node()->inner()[offset_hint];
  639|  7.01k|    auto is_full = offset_hint + 1 != count_hint;
  640|  7.01k|    return is_full
  ------------------
  |  Branch (640:12): [True: 3.52k, False: 3.49k]
  ------------------
  641|  7.01k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.64k, False: 1.88k]
  ------------------
  642|  3.52k|                          : make_full_pos(child, p.shift() - B)
  643|  1.88k|                                .visit(v, idx, args...))
  644|  7.01k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 867, False: 2.62k]
  ------------------
  645|  3.49k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  3.49k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.62k|                            .visit(v, idx, args...));
  648|  7.01k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
  867|  12.3k|    {
  868|  12.3k|        return each_right_regular(*this, v, start, args...);
  869|  12.3k|    }
_ZN5immer6detail4rbts18each_right_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_11dec_visitorEJEEEvOT_T0_jDpOT1_:
  597|  12.3k|{
  598|  12.3k|    constexpr auto B  = bits<Pos>;
  599|  12.3k|    constexpr auto BL = bits_leaf<Pos>;
  600|       |
  601|  12.3k|    if (p.shift() == BL) {
  ------------------
  |  Branch (601:9): [True: 3.87k, False: 8.51k]
  ------------------
  602|  3.87k|        auto n    = p.node()->inner() + start;
  603|  3.87k|        auto last = p.count() - 1;
  604|  3.87k|        auto e    = p.node()->inner() + last;
  605|  3.87k|        if (n <= e) {
  ------------------
  |  Branch (605:13): [True: 2.24k, False: 1.63k]
  ------------------
  606|  4.89k|            for (; n != e; ++n) {
  ------------------
  |  Branch (606:20): [True: 2.65k, False: 2.24k]
  ------------------
  607|  2.65k|                IMMER_PREFETCH(n + 1);
  608|  2.65k|                make_full_leaf_pos(*n).visit(v, args...);
  609|  2.65k|            }
  610|  2.24k|            make_leaf_pos(*n, p.size()).visit(v, args...);
  611|  2.24k|        }
  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: 5.15k, False: 3.36k]
  ------------------
  618|  6.27k|            for (; n != e; ++n)
  ------------------
  |  Branch (618:20): [True: 1.11k, False: 5.15k]
  ------------------
  619|  1.11k|                make_full_pos(*n, ss).visit(v, args...);
  620|  5.15k|            make_regular_pos(*n, ss, p.size()).visit(v, args...);
  621|  5.15k|        }
  622|  8.51k|    }
  623|  12.3k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1813|  25.5k|    {
 1814|  25.5k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  25.5k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  9.46k|    {
 1687|  9.46k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 9.46k, False: 0]
  ------------------
 1688|  9.46k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 9.05k, False: 408]
  ------------------
 1689|  9.46k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  9.46k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  9.46k|    {
 1699|  9.46k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  9.46k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  9.46k|    {
 1718|  9.46k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 9.46k, False: 0]
  ------------------
 1719|  9.46k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 9.05k, False: 408]
  |  Branch (1719:9): [True: 9.46k, False: 0]
  ------------------
 1720|  9.46k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  9.46k|        auto child     = node_->inner()[offset_hint];
 1722|  9.46k|        auto is_leaf   = shift_ == BL;
 1723|  9.46k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  9.46k|        auto next_idx  = idx - left_size_hint;
 1725|  9.46k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 1.87k, False: 7.59k]
  ------------------
 1726|  9.46k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  1.87k|                         .visit(v, next_idx, args...)
 1728|  9.46k|                   : visit_maybe_relaxed_sub(
 1729|  7.59k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  9.46k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  1.87k|    {
  145|  1.87k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  1.87k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  7.59k|{
 1839|  7.59k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 7.59k, False: 0]
  ------------------
 1840|  7.59k|    auto relaxed = node->relaxed();
 1841|  7.59k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.79k, False: 4.80k]
  ------------------
 1842|  2.79k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.79k, False: 0]
  ------------------
 1843|  2.79k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.79k|            .visit(v, std::forward<Args>(args)...);
 1845|  4.80k|    } else {
 1846|  4.80k|        return make_regular_sub_pos(node, shift, size)
 1847|  4.80k|            .visit(v, std::forward<Args>(args)...);
 1848|  4.80k|    }
 1849|  7.59k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  2.79k|    {
 1814|  2.79k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.79k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  4.80k|    {
 1037|  4.80k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.80k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_17dec_right_visitorEJjEEEDcT_DpOT0_:
 1036|  10.4k|    {
 1037|  10.4k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  10.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1686|  11.1k|    {
 1687|  11.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 11.1k, False: 0]
  ------------------
 1688|  11.1k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 9.35k, False: 1.83k]
  ------------------
 1689|  11.1k|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  11.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1698|  11.1k|    {
 1699|  11.1k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  11.1k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  11.1k|    {
 1718|  11.1k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 11.1k, False: 0]
  ------------------
 1719|  11.1k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 9.35k, False: 1.83k]
  |  Branch (1719:9): [True: 11.1k, False: 0]
  ------------------
 1720|  11.1k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  11.1k|        auto child     = node_->inner()[offset_hint];
 1722|  11.1k|        auto is_leaf   = shift_ == BL;
 1723|  11.1k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  11.1k|        auto next_idx  = idx - left_size_hint;
 1725|  11.1k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 4.43k, False: 6.75k]
  ------------------
 1726|  11.1k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  4.43k|                         .visit(v, next_idx, args...)
 1728|  11.1k|                   : visit_maybe_relaxed_sub(
 1729|  6.75k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  11.1k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  4.43k|    {
  145|  4.43k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.43k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  6.75k|{
 1839|  6.75k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 6.75k, False: 0]
  ------------------
 1840|  6.75k|    auto relaxed = node->relaxed();
 1841|  6.75k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 3.55k, False: 3.19k]
  ------------------
 1842|  3.55k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 3.55k, False: 0]
  ------------------
 1843|  3.55k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  3.55k|            .visit(v, std::forward<Args>(args)...);
 1845|  3.55k|    } else {
 1846|  3.19k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.19k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.19k|    }
 1849|  6.75k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  3.55k|    {
 1814|  3.55k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  3.55k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  3.19k|    {
 1037|  3.19k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.19k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10each_rightINS1_11dec_visitorEJEEEvT_jDpOT0_:
 1653|  28.6k|    {
 1654|  28.6k|        assert(start > 0);
  ------------------
  |  Branch (1654:9): [True: 28.6k, False: 0]
  ------------------
 1655|  28.6k|        assert(start <= relaxed_->d.count);
  ------------------
  |  Branch (1655:9): [True: 28.6k, False: 0]
  ------------------
 1656|  28.6k|        auto s = relaxed_->d.sizes[start - 1];
 1657|  28.6k|        auto p = node_->inner();
 1658|  28.6k|        if (shift_ == BL) {
  ------------------
  |  Branch (1658:13): [True: 2.71k, False: 25.9k]
  ------------------
 1659|  8.41k|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1659:34): [True: 5.69k, False: 2.71k]
  ------------------
 1660|  5.69k|                IMMER_PREFETCH(p + i + 1);
 1661|  5.69k|                make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
 1662|  5.69k|                    .visit(v, args...);
 1663|  5.69k|                s = relaxed_->d.sizes[i];
 1664|  5.69k|                assert(s);
  ------------------
  |  Branch (1664:17): [True: 5.69k, False: 0]
  ------------------
 1665|  5.69k|            }
 1666|  25.9k|        } else {
 1667|  25.9k|            auto ss = shift_ - B;
 1668|   149k|            for (auto i = start; i < relaxed_->d.count; ++i) {
  ------------------
  |  Branch (1668:34): [True: 123k, False: 25.9k]
  ------------------
 1669|   123k|                visit_maybe_relaxed_sub(
 1670|   123k|                    p[i], ss, relaxed_->d.sizes[i] - s, v, args...);
 1671|   123k|                s = relaxed_->d.sizes[i];
 1672|       |                assert(s);
  ------------------
  |  Branch (1672:17): [True: 123k, False: 0]
  ------------------
 1673|   123k|            }
 1674|  25.9k|        }
 1675|  28.6k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  12.7k|    {
 1037|  12.7k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  12.7k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  927|  5.07k|    {
  928|  5.07k|        return towards_oh_ch_regular(
  929|  5.07k|            *this, v, idx, offset_hint, count(), args...);
  930|  5.07k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_23slice_right_mut_visitorISD_Lb1ELb1EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjjDpOT1_:
  632|  5.07k|{
  633|  5.07k|    constexpr auto B  = bits<Pos>;
  634|  5.07k|    constexpr auto BL = bits_leaf<Pos>;
  635|  5.07k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 5.07k, False: 0]
  ------------------
  636|  5.07k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 5.07k, False: 0]
  ------------------
  637|  5.07k|    auto is_leaf = p.shift() == BL;
  638|  5.07k|    auto child   = p.node()->inner()[offset_hint];
  639|  5.07k|    auto is_full = offset_hint + 1 != count_hint;
  640|  5.07k|    return is_full
  ------------------
  |  Branch (640:12): [True: 4.33k, False: 741]
  ------------------
  641|  5.07k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 1.11k, False: 3.22k]
  ------------------
  642|  4.33k|                          : make_full_pos(child, p.shift() - B)
  643|  3.22k|                                .visit(v, idx, args...))
  644|  5.07k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 741, False: 0]
  ------------------
  645|    741|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|    741|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|      0|                            .visit(v, idx, args...));
  648|  5.07k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  1.79k|    {
  208|  1.79k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  1.79k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  3.71k|    {
 1406|  3.71k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.71k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1336|  1.18k|    {
 1337|  1.18k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 1.18k, False: 0]
  ------------------
 1338|  1.18k|        auto is_leaf = shift_ == BL;
 1339|  1.18k|        auto child   = node_->inner()[offset_hint];
 1340|  1.18k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 683, False: 497]
  ------------------
 1341|  1.18k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|  1.18k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|  1.18k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_23slice_right_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  112|    741|    {
  113|    741|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|    741|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|    857|    {
  145|    857|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|    857|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  55.9k|{
 1839|  55.9k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 55.9k, False: 0]
  ------------------
 1840|  55.9k|    auto relaxed = node->relaxed();
 1841|  55.9k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 53.3k, False: 2.58k]
  ------------------
 1842|  53.3k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 53.3k, False: 0]
  ------------------
 1843|  53.3k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  53.3k|            .visit(v, std::forward<Args>(args)...);
 1845|  53.3k|    } else {
 1846|  2.58k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.58k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.58k|    }
 1849|  55.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  53.3k|    {
 1814|  53.3k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  53.3k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|  1.93k|    {
 1706|  1.93k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 1.93k, False: 0]
  ------------------
 1707|  1.93k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 1.50k, False: 436]
  ------------------
 1708|  1.93k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  1.93k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  1.93k|    {
 1718|  1.93k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 1.93k, False: 0]
  ------------------
 1719|  1.93k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 1.50k, False: 436]
  |  Branch (1719:9): [True: 1.93k, False: 0]
  ------------------
 1720|  1.93k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  1.93k|        auto child     = node_->inner()[offset_hint];
 1722|  1.93k|        auto is_leaf   = shift_ == BL;
 1723|  1.93k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  1.93k|        auto next_idx  = idx - left_size_hint;
 1725|  1.93k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 1.93k]
  ------------------
 1726|  1.93k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  1.93k|                   : visit_maybe_relaxed_sub(
 1729|  1.93k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  1.93k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|  3.81k|    {
 1706|  3.81k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 3.81k, False: 0]
  ------------------
 1707|  3.81k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 3.30k, False: 514]
  ------------------
 1708|  3.81k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  3.81k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  3.81k|    {
 1718|  3.81k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 3.81k, False: 0]
  ------------------
 1719|  3.81k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 3.30k, False: 514]
  |  Branch (1719:9): [True: 3.81k, False: 0]
  ------------------
 1720|  3.81k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  3.81k|        auto child     = node_->inner()[offset_hint];
 1722|  3.81k|        auto is_leaf   = shift_ == BL;
 1723|  3.81k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  3.81k|        auto next_idx  = idx - left_size_hint;
 1725|  3.81k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 0, False: 3.81k]
  ------------------
 1726|  3.81k|                   ? make_leaf_sub_pos(child, next_size)
 1727|      0|                         .visit(v, next_idx, args...)
 1728|  3.81k|                   : visit_maybe_relaxed_sub(
 1729|  3.81k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  3.81k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  3.81k|{
 1839|  3.81k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 3.81k, False: 0]
  ------------------
 1840|  3.81k|    auto relaxed = node->relaxed();
 1841|  3.81k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.51k, False: 1.29k]
  ------------------
 1842|  2.51k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.51k, False: 0]
  ------------------
 1843|  2.51k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.51k|            .visit(v, std::forward<Args>(args)...);
 1845|  2.51k|    } else {
 1846|  1.29k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.29k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.29k|    }
 1849|  3.81k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  2.51k|    {
 1814|  2.51k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.51k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.29k|    {
 1037|  1.29k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.29k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  1.36k|    {
  947|  1.36k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  1.36k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb1ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  1.36k|{
  654|  1.36k|    constexpr auto B  = bits<Pos>;
  655|  1.36k|    constexpr auto BL = bits_leaf<Pos>;
  656|  1.36k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 1.36k, False: 0]
  ------------------
  657|  1.36k|    auto is_leaf = p.shift() == BL;
  658|  1.36k|    auto child   = p.node()->inner()[offset_hint];
  659|  1.36k|    auto lsize   = offset_hint << p.shift();
  660|  1.36k|    auto size    = p.this_size();
  661|  1.36k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  1.36k|    return is_full
  ------------------
  |  Branch (662:12): [True: 627, False: 733]
  ------------------
  663|  1.36k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 0, False: 627]
  ------------------
  664|    627|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|    627|                      : make_full_pos(child, p.shift() - B)
  666|    627|                            .visit(v, idx - lsize, args...))
  667|  1.36k|               : (is_leaf
  ------------------
  |  Branch (667:19): [True: 0, False: 733]
  ------------------
  668|    733|                      ? make_leaf_sub_pos(child, size - lsize)
  669|      0|                            .visit(v, idx - lsize, args...)
  670|    733|                      : make_regular_sub_pos(child, p.shift() - B, size - lsize)
  671|    733|                            .visit(v, idx - lsize, args...));
  672|  1.36k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|    627|    {
 1406|    627|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|    627|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1348|  2.52k|    {
 1349|  2.52k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1349:9): [True: 2.52k, False: 0]
  ------------------
 1350|  2.52k|        auto is_leaf = shift_ == BL;
 1351|  2.52k|        auto child   = node_->inner()[offset_hint];
 1352|  2.52k|        auto lsize   = size_t{offset_hint} << shift_;
 1353|  2.52k|        return is_leaf
  ------------------
  |  Branch (1353:16): [True: 1.91k, False: 608]
  ------------------
 1354|  2.52k|                   ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
 1355|  2.52k|                   : make_full_pos(child, shift_ - B)
 1356|    608|                         .visit(v, idx - lsize, args...);
 1357|  2.52k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  207|  8.17k|    {
  208|  8.17k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  8.17k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1405|  1.90k|    {
 1406|  1.90k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.90k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb0EEEJmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|    733|    {
 1037|    733|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    733|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
  946|  7.54k|    {
  947|  7.54k|        return towards_sub_oh_regular(*this, v, idx, offset_hint, args...);
  948|  7.54k|    }
_ZN5immer6detail4rbts22towards_sub_oh_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_22slice_left_mut_visitorISD_Lb0ELb0EEEJRNSB_5applyIS8_E4type4editEEEEDcOT_T0_mjDpOT1_:
  653|  7.54k|{
  654|  7.54k|    constexpr auto B  = bits<Pos>;
  655|  7.54k|    constexpr auto BL = bits_leaf<Pos>;
  656|  7.54k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (656:5): [True: 7.54k, False: 0]
  ------------------
  657|  7.54k|    auto is_leaf = p.shift() == BL;
  658|  7.54k|    auto child   = p.node()->inner()[offset_hint];
  659|  7.54k|    auto lsize   = offset_hint << p.shift();
  660|  7.54k|    auto size    = p.this_size();
  661|  7.54k|    auto is_full = (size - lsize) >= (size_t{1} << p.shift());
  662|  7.54k|    return is_full
  ------------------
  |  Branch (662:12): [True: 7.54k, False: 0]
  ------------------
  663|  7.54k|               ? (is_leaf
  ------------------
  |  Branch (663:19): [True: 6.25k, False: 1.29k]
  ------------------
  664|  7.54k|                      ? make_full_leaf_pos(child).visit(v, idx - lsize, args...)
  665|  7.54k|                      : make_full_pos(child, p.shift() - B)
  666|  1.29k|                            .visit(v, idx - lsize, args...))
  667|  7.54k|               : (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|  7.54k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_16dec_left_visitorEJRjEEEDcT_DpOT0_:
 1813|  1.93k|    {
 1814|  1.93k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.93k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|   178k|    {
 1706|   178k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 178k, False: 0]
  ------------------
 1707|   178k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 41.2k, False: 137k]
  ------------------
 1708|   178k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|   178k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|   178k|    {
 1718|   178k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 178k, False: 0]
  ------------------
 1719|   178k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 41.2k, False: 137k]
  |  Branch (1719:9): [True: 178k, False: 0]
  ------------------
 1720|   178k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|   178k|        auto child     = node_->inner()[offset_hint];
 1722|   178k|        auto is_leaf   = shift_ == BL;
 1723|   178k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|   178k|        auto next_idx  = idx - left_size_hint;
 1725|   178k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 4.36k, False: 174k]
  ------------------
 1726|   178k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  4.36k|                         .visit(v, next_idx, args...)
 1728|   178k|                   : visit_maybe_relaxed_sub(
 1729|   174k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|   178k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  4.36k|    {
  145|  4.36k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  4.36k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|   174k|{
 1839|   174k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 174k, False: 0]
  ------------------
 1840|   174k|    auto relaxed = node->relaxed();
 1841|   174k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 172k, False: 1.54k]
  ------------------
 1842|   172k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 172k, False: 0]
  ------------------
 1843|   172k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   172k|            .visit(v, std::forward<Args>(args)...);
 1845|   172k|    } else {
 1846|  1.54k|        return make_regular_sub_pos(node, shift, size)
 1847|  1.54k|            .visit(v, std::forward<Args>(args)...);
 1848|  1.54k|    }
 1849|   174k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|   172k|    {
 1814|   172k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   172k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  1.54k|    {
 1037|  1.54k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.54k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_sub_ohINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjDpOT0_:
 1705|  92.8k|    {
 1706|  92.8k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1706:9): [True: 92.8k, False: 0]
  ------------------
 1707|  92.8k|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1707:26): [True: 55.6k, False: 37.2k]
  ------------------
 1708|  92.8k|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size, args...);
 1709|  92.8k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRNSA_5applyIS7_E4type4editEEEEDcT_mjmDpOT0_:
 1717|  92.8k|    {
 1718|  92.8k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 92.8k, False: 0]
  ------------------
 1719|  92.8k|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 55.6k, False: 37.2k]
  |  Branch (1719:9): [True: 92.8k, False: 0]
  ------------------
 1720|  92.8k|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  92.8k|        auto child     = node_->inner()[offset_hint];
 1722|  92.8k|        auto is_leaf   = shift_ == BL;
 1723|  92.8k|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  92.8k|        auto next_idx  = idx - left_size_hint;
 1725|  92.8k|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 41.4k, False: 51.4k]
  ------------------
 1726|  92.8k|                   ? make_leaf_sub_pos(child, next_size)
 1727|  41.4k|                         .visit(v, next_idx, args...)
 1728|  92.8k|                   : visit_maybe_relaxed_sub(
 1729|  51.4k|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  92.8k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
  144|  41.4k|    {
  145|  41.4k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  41.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcPT_jmT0_DpOT1_:
 1838|  51.4k|{
 1839|  51.4k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 51.4k, False: 0]
  ------------------
 1840|  51.4k|    auto relaxed = node->relaxed();
 1841|  51.4k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 48.6k, False: 2.74k]
  ------------------
 1842|  48.6k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 48.6k, False: 0]
  ------------------
 1843|  48.6k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  48.6k|            .visit(v, std::forward<Args>(args)...);
 1845|  48.6k|    } else {
 1846|  2.74k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.74k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.74k|    }
 1849|  51.4k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1813|  48.6k|    {
 1814|  48.6k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  48.6k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb0ELb0EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  2.74k|    {
 1037|  2.74k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.74k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_22slice_left_mut_visitorISC_Lb1ELb1EEEJRmRNSA_5applyIS7_E4type4editEEEEDcT_DpOT0_:
 1036|  2.58k|    {
 1037|  2.58k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.58k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcPT_jmT0_DpOT1_:
 1838|  21.9k|{
 1839|  21.9k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 21.9k, False: 0]
  ------------------
 1840|  21.9k|    auto relaxed = node->relaxed();
 1841|  21.9k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 13.4k, False: 8.55k]
  ------------------
 1842|  13.4k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 13.4k, False: 0]
  ------------------
 1843|  13.4k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  13.4k|            .visit(v, std::forward<Args>(args)...);
 1845|  13.4k|    } else {
 1846|  8.55k|        return make_regular_sub_pos(node, shift, size)
 1847|  8.55k|            .visit(v, std::forward<Args>(args)...);
 1848|  8.55k|    }
 1849|  21.9k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcT_DpOT0_:
 1813|  13.4k|    {
 1814|  13.4k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  13.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcPT_jmT0_DpOT1_:
 1838|  13.4k|{
 1839|  13.4k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 13.4k, False: 0]
  ------------------
 1840|  13.4k|    auto relaxed = node->relaxed();
 1841|  13.4k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 10.2k, False: 3.12k]
  ------------------
 1842|  10.2k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 10.2k, False: 0]
  ------------------
 1843|  10.2k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  10.2k|            .visit(v, std::forward<Args>(args)...);
 1845|  10.2k|    } else {
 1846|  3.12k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.12k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.12k|    }
 1849|  13.4k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1813|  10.2k|    {
 1814|  10.2k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  10.2k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  55.6k|    {
 1794|  55.6k|        auto child      = node_->inner()[offset];
 1795|  55.6k|        auto child_size = size(offset);
 1796|  55.6k|        auto is_leaf    = shift_ == BL;
 1797|  55.6k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 25.2k, False: 30.4k]
  ------------------
 1798|  55.6k|                       : visit_maybe_relaxed_sub(
 1799|  30.4k|                             child, shift_ - B, child_size, v, args...);
 1800|  55.6k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  25.8k|    {
  145|  25.8k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  25.8k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1804|  25.8k|    {
 1805|  25.8k|        assert(shift_ == BL);
  ------------------
  |  Branch (1805:9): [True: 25.8k, False: 0]
  ------------------
 1806|  25.8k|        auto child      = node_->inner()[offset];
 1807|  25.8k|        auto child_size = size(offset);
 1808|  25.8k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1809|  25.8k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  26.4k|    {
  145|  26.4k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  26.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  30.4k|{
 1839|  30.4k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 30.4k, False: 0]
  ------------------
 1840|  30.4k|    auto relaxed = node->relaxed();
 1841|  30.4k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 25.4k, False: 4.95k]
  ------------------
 1842|  25.4k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 25.4k, False: 0]
  ------------------
 1843|  25.4k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  25.4k|            .visit(v, std::forward<Args>(args)...);
 1845|  25.4k|    } else {
 1846|  4.95k|        return make_regular_sub_pos(node, shift, size)
 1847|  4.95k|            .visit(v, std::forward<Args>(args)...);
 1848|  4.95k|    }
 1849|  30.4k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  25.4k|    {
 1814|  25.4k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  25.4k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  25.4k|    {
 1794|  25.4k|        auto child      = node_->inner()[offset];
 1795|  25.4k|        auto child_size = size(offset);
 1796|  25.4k|        auto is_leaf    = shift_ == BL;
 1797|  25.4k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 25.4k]
  ------------------
 1798|  25.4k|                       : visit_maybe_relaxed_sub(
 1799|  25.4k|                             child, shift_ - B, child_size, v, args...);
 1800|  25.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  25.4k|{
 1839|  25.4k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 25.4k, False: 0]
  ------------------
 1840|  25.4k|    auto relaxed = node->relaxed();
 1841|  25.4k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 24.5k, False: 875]
  ------------------
 1842|  24.5k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 24.5k, False: 0]
  ------------------
 1843|  24.5k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  24.5k|            .visit(v, std::forward<Args>(args)...);
 1845|  24.5k|    } else {
 1846|    875|        return make_regular_sub_pos(node, shift, size)
 1847|    875|            .visit(v, std::forward<Args>(args)...);
 1848|    875|    }
 1849|  25.4k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  24.5k|    {
 1814|  24.5k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  24.5k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  1.19k|    {
 1037|  1.19k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  1.19k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  8.12k|    {
 1794|  8.12k|        auto child      = node_->inner()[offset];
 1795|  8.12k|        auto child_size = size(offset);
 1796|  8.12k|        auto is_leaf    = shift_ == BL;
 1797|  8.12k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 5.13k, False: 2.98k]
  ------------------
 1798|  8.12k|                       : visit_maybe_relaxed_sub(
 1799|  2.98k|                             child, shift_ - B, child_size, v, args...);
 1800|  8.12k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  5.13k|    {
  145|  5.13k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  5.13k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1025|  5.13k|    {
 1026|  5.13k|        assert(shift_ == BL);
  ------------------
  |  Branch (1026:9): [True: 5.13k, False: 0]
  ------------------
 1027|  5.13k|        auto child   = node_->inner()[idx];
 1028|  5.13k|        auto lsize   = size(idx);
 1029|  5.13k|        auto is_full = idx + 1 < count();
 1030|  5.13k|        return is_full ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1030:16): [True: 4.47k, False: 663]
  ------------------
 1031|  5.13k|                       : make_leaf_sub_pos(child, lsize).visit(v, args...);
 1032|  5.13k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  207|  11.7k|    {
  208|  11.7k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  11.7k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  2.98k|{
 1839|  2.98k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 2.98k, False: 0]
  ------------------
 1840|  2.98k|    auto relaxed = node->relaxed();
 1841|  2.98k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.11k, False: 869]
  ------------------
 1842|  2.11k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.11k, False: 0]
  ------------------
 1843|  2.11k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.11k|            .visit(v, std::forward<Args>(args)...);
 1845|  2.11k|    } else {
 1846|    869|        return make_regular_sub_pos(node, shift, size)
 1847|    869|            .visit(v, std::forward<Args>(args)...);
 1848|    869|    }
 1849|  2.98k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  2.11k|    {
 1814|  2.11k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.11k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1007|  2.11k|    {
 1008|  2.11k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 2.11k, False: 0]
  ------------------
 1009|  2.11k|        auto is_leaf = shift_ == BL;
 1010|  2.11k|        auto child   = node_->inner()[idx];
 1011|  2.11k|        auto lsize   = size(idx);
 1012|  2.11k|        auto is_full = idx + 1 < count();
 1013|  2.11k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 1.79k, False: 324]
  ------------------
 1014|  2.11k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 0, False: 1.79k]
  ------------------
 1015|  1.79k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  1.79k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  2.11k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 0, False: 324]
  ------------------
 1018|    324|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|    324|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|    324|                                .visit(v, args...));
 1021|  2.11k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  2.24k|    {
 1406|  2.24k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  2.24k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1793|  8.56k|    {
 1794|  8.56k|        auto child      = node_->inner()[offset];
 1795|  8.56k|        auto child_size = size(offset);
 1796|  8.56k|        auto is_leaf    = shift_ == BL;
 1797|  8.56k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 7.27k, False: 1.29k]
  ------------------
 1798|  8.56k|                       : visit_maybe_relaxed_sub(
 1799|  1.29k|                             child, shift_ - B, child_size, v, args...);
 1800|  8.56k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  7.27k|    {
  145|  7.27k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  7.27k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_12leaf_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1396|  7.27k|    {
 1397|  7.27k|        assert(shift_ == BL);
  ------------------
  |  Branch (1397:9): [True: 7.27k, False: 0]
  ------------------
 1398|  7.27k|        assert(idx < count());
  ------------------
  |  Branch (1398:9): [True: 7.27k, False: 0]
  ------------------
 1399|  7.27k|        auto child = node_->inner()[idx];
 1400|  7.27k|        return make_full_leaf_pos(child).visit(v, args...);
 1401|  7.27k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  1.29k|{
 1839|  1.29k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.29k, False: 0]
  ------------------
 1840|  1.29k|    auto relaxed = node->relaxed();
 1841|  1.29k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 447, False: 844]
  ------------------
 1842|    447|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 447, False: 0]
  ------------------
 1843|    447|        return make_relaxed_pos(node, shift, relaxed)
 1844|    447|            .visit(v, std::forward<Args>(args)...);
 1845|    844|    } else {
 1846|    844|        return make_regular_sub_pos(node, shift, size)
 1847|    844|            .visit(v, std::forward<Args>(args)...);
 1848|    844|    }
 1849|  1.29k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|    447|    {
 1814|    447|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|    447|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1386|    447|    {
 1387|    447|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 447, False: 0]
  ------------------
 1388|    447|        auto is_leaf = shift_ == BL;
 1389|    447|        auto child   = node_->inner()[idx];
 1390|    447|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 0, False: 447]
  ------------------
 1391|    447|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|    447|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    844|    {
 1037|    844|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    844|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1386|    844|    {
 1387|    844|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 844, False: 0]
  ------------------
 1388|    844|        auto is_leaf = shift_ == BL;
 1389|    844|        auto child   = node_->inner()[idx];
 1390|    844|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 0, False: 844]
  ------------------
 1391|    844|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|    844|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  1.71k|    {
 1406|  1.71k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  1.71k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
 1222|  3.69k|    {
 1223|  3.69k|        auto p  = node_->inner();
 1224|  3.69k|        auto p2 = other->inner();
 1225|  3.69k|        auto e  = p + branches<B>;
 1226|  3.69k|        if (shift_ == BL) {
  ------------------
  |  Branch (1226:13): [True: 2.77k, False: 917]
  ------------------
 1227|  18.5k|            for (; p != e; ++p, ++p2) {
  ------------------
  |  Branch (1227:20): [True: 16.9k, False: 1.53k]
  ------------------
 1228|  16.9k|                IMMER_PREFETCH(p + 1);
 1229|  16.9k|                if (!make_full_leaf_pos(*p).visit(v, *p2, args...))
  ------------------
  |  Branch (1229:21): [True: 1.24k, False: 15.7k]
  ------------------
 1230|  1.24k|                    return false;
 1231|  16.9k|            }
 1232|  2.77k|        } else {
 1233|    917|            auto ss = shift_ - B;
 1234|  6.38k|            for (; p != e; ++p, ++p2)
  ------------------
  |  Branch (1234:20): [True: 5.77k, False: 611]
  ------------------
 1235|  5.77k|                if (!make_full_pos(*p, ss).visit(v, *p2, args...))
  ------------------
  |  Branch (1235:21): [True: 306, False: 5.47k]
  ------------------
 1236|    306|                    return false;
 1237|    917|        }
 1238|  2.14k|        return true;
 1239|  3.69k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  207|  24.3k|    {
  208|  24.3k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  24.3k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
 1405|  10.7k|    {
 1406|  10.7k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  10.7k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
  837|  5.41k|    {
  838|  5.41k|        return each_pred_zip_regular(*this, v, other, args...);
  839|  5.41k|    }
_ZN5immer6detail4rbts21each_pred_zip_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_14equals_visitorEJEEEbOT_T0_PNSt3__15decayISH_E4type6node_tEDpOT1_:
  392|  5.41k|{
  393|  5.41k|    constexpr auto B  = bits<Pos>;
  394|  5.41k|    constexpr auto BL = bits_leaf<Pos>;
  395|       |
  396|  5.41k|    auto n    = p.node()->inner();
  397|  5.41k|    auto n2   = other->inner();
  398|  5.41k|    auto last = p.count() - 1;
  399|  5.41k|    auto e    = n + last;
  400|  5.41k|    if (p.shift() == BL) {
  ------------------
  |  Branch (400:9): [True: 2.27k, False: 3.14k]
  ------------------
  401|  6.16k|        for (; n != e; ++n, ++n2) {
  ------------------
  |  Branch (401:16): [True: 4.89k, False: 1.26k]
  ------------------
  402|  4.89k|            IMMER_PREFETCH(n + 1);
  403|  4.89k|            IMMER_PREFETCH(n2 + 1);
  404|  4.89k|            if (!make_full_leaf_pos(*n).visit(v, *n2, args...))
  ------------------
  |  Branch (404:17): [True: 1.00k, False: 3.89k]
  ------------------
  405|  1.00k|                return false;
  406|  4.89k|        }
  407|  1.26k|        return make_leaf_pos(*n, p.size()).visit(v, *n2, args...);
  408|  3.14k|    } else {
  409|  3.14k|        auto ss = p.shift() - B;
  410|  6.45k|        for (; n != e; ++n, ++n2)
  ------------------
  |  Branch (410:16): [True: 3.97k, False: 2.48k]
  ------------------
  411|  3.97k|            if (!make_full_pos(*n, ss).visit(v, *n2, args...))
  ------------------
  |  Branch (411:17): [True: 660, False: 3.31k]
  ------------------
  412|    660|                return false;
  413|  2.48k|        return make_regular_pos(*n, ss, p.size()).visit(v, *n2, args...);
  414|  3.14k|    }
  415|  5.41k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  112|  3.03k|    {
  113|  3.03k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  3.03k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRPSC_EEEDcT_DpOT0_:
  336|  3.16k|    {
  337|  3.16k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.16k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE13each_pred_zipINS1_14equals_visitorEJEEEbT_PSC_DpOT0_:
  255|  2.87k|    {
  256|  2.87k|        return each_pred_zip_regular(*this, v, other, args...);
  257|  2.87k|    }
_ZN5immer6detail4rbts21each_pred_zip_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_14equals_visitorEJEEEbOT_T0_PNSt3__15decayISH_E4type6node_tEDpOT1_:
  392|  2.87k|{
  393|  2.87k|    constexpr auto B  = bits<Pos>;
  394|  2.87k|    constexpr auto BL = bits_leaf<Pos>;
  395|       |
  396|  2.87k|    auto n    = p.node()->inner();
  397|  2.87k|    auto n2   = other->inner();
  398|  2.87k|    auto last = p.count() - 1;
  399|  2.87k|    auto e    = n + last;
  400|  2.87k|    if (p.shift() == BL) {
  ------------------
  |  Branch (400:9): [True: 2.00k, False: 877]
  ------------------
  401|  4.20k|        for (; n != e; ++n, ++n2) {
  ------------------
  |  Branch (401:16): [True: 2.43k, False: 1.76k]
  ------------------
  402|  2.43k|            IMMER_PREFETCH(n + 1);
  403|  2.43k|            IMMER_PREFETCH(n2 + 1);
  404|  2.43k|            if (!make_full_leaf_pos(*n).visit(v, *n2, args...))
  ------------------
  |  Branch (404:17): [True: 234, False: 2.20k]
  ------------------
  405|    234|                return false;
  406|  2.43k|        }
  407|  1.76k|        return make_leaf_pos(*n, p.size()).visit(v, *n2, args...);
  408|  2.00k|    } else {
  409|    877|        auto ss = p.shift() - B;
  410|  1.68k|        for (; n != e; ++n, ++n2)
  ------------------
  |  Branch (410:16): [True: 1.00k, False: 682]
  ------------------
  411|  1.00k|            if (!make_full_pos(*n, ss).visit(v, *n2, args...))
  ------------------
  |  Branch (411:17): [True: 195, False: 808]
  ------------------
  412|    195|                return false;
  413|    682|        return make_regular_pos(*n, ss, p.size()).visit(v, *n2, args...);
  414|    877|    }
  415|  2.87k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1386|  5.79k|    {
 1387|  5.79k|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 5.79k, False: 0]
  ------------------
 1388|  5.79k|        auto is_leaf = shift_ == BL;
 1389|  5.79k|        auto child   = node_->inner()[idx];
 1390|  5.79k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 5.04k, False: 744]
  ------------------
 1391|  5.79k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|  5.79k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  207|   180k|    {
  208|   180k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   180k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_18region_for_visitorIiEEJRmEEEDcPT_jmT0_DpOT1_:
 1838|  4.61M|{
 1839|  4.61M|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 4.61M, False: 0]
  ------------------
 1840|  4.61M|    auto relaxed = node->relaxed();
 1841|  4.61M|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 4.39M, False: 212k]
  ------------------
 1842|  4.39M|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 4.39M, False: 0]
  ------------------
 1843|  4.39M|        return make_relaxed_pos(node, shift, relaxed)
 1844|  4.39M|            .visit(v, std::forward<Args>(args)...);
 1845|  4.39M|    } else {
 1846|   212k|        return make_regular_sub_pos(node, shift, size)
 1847|   212k|            .visit(v, std::forward<Args>(args)...);
 1848|   212k|    }
 1849|  4.61M|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1813|  4.39M|    {
 1814|  4.39M|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  4.39M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
 1679|  4.39M|    {
 1680|  4.39M|        return towards_oh(v, idx, subindex(idx), args...);
 1681|  4.39M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_18region_for_visitorIiEEJEEEDcT_mjDpOT0_:
 1686|  4.39M|    {
 1687|  4.39M|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1687:9): [True: 4.39M, False: 0]
  ------------------
 1688|  4.39M|        auto left_size = offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0;
  ------------------
  |  Branch (1688:26): [True: 3.05M, False: 1.34M]
  ------------------
 1689|  4.39M|        return towards_oh_sbh(v, idx, offset_hint, left_size, args...);
 1690|  4.39M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE14towards_oh_sbhINS1_18region_for_visitorIiEEJEEEDcT_mjmDpOT0_:
 1698|  4.39M|    {
 1699|  4.39M|        return towards_sub_oh_sbh(v, idx, offset_hint, left_size_hint, args...);
 1700|  4.39M|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE18towards_sub_oh_sbhINS1_18region_for_visitorIiEEJEEEDcT_mjmDpOT0_:
 1717|  4.39M|    {
 1718|  4.39M|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1718:9): [True: 4.39M, False: 0]
  ------------------
 1719|  4.39M|        assert(left_size_hint ==
  ------------------
  |  Branch (1719:9): [True: 3.05M, False: 1.34M]
  |  Branch (1719:9): [True: 4.39M, False: 0]
  ------------------
 1720|  4.39M|               (offset_hint ? relaxed_->d.sizes[offset_hint - 1] : 0));
 1721|  4.39M|        auto child     = node_->inner()[offset_hint];
 1722|  4.39M|        auto is_leaf   = shift_ == BL;
 1723|  4.39M|        auto next_size = relaxed_->d.sizes[offset_hint] - left_size_hint;
 1724|  4.39M|        auto next_idx  = idx - left_size_hint;
 1725|  4.39M|        return is_leaf
  ------------------
  |  Branch (1725:16): [True: 993k, False: 3.40M]
  ------------------
 1726|  4.39M|                   ? make_leaf_sub_pos(child, next_size)
 1727|   993k|                         .visit(v, next_idx, args...)
 1728|  4.39M|                   : visit_maybe_relaxed_sub(
 1729|  3.40M|                         child, shift_ - B, next_size, v, next_idx, args...);
 1730|  4.39M|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  144|   993k|    {
  145|   993k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   993k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1036|   212k|    {
 1037|   212k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|   212k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
  919|   212k|    {
  920|   212k|        return towards_oh_ch_regular(
  921|   212k|            *this, v, idx, index(idx), count(), args...);
  922|   212k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_18region_for_visitorIiEEJEEEDcOT_T0_mjjDpOT1_:
  632|   212k|{
  633|   212k|    constexpr auto B  = bits<Pos>;
  634|   212k|    constexpr auto BL = bits_leaf<Pos>;
  635|   212k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 212k, False: 0]
  ------------------
  636|   212k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 212k, False: 0]
  ------------------
  637|   212k|    auto is_leaf = p.shift() == BL;
  638|   212k|    auto child   = p.node()->inner()[offset_hint];
  639|   212k|    auto is_full = offset_hint + 1 != count_hint;
  640|   212k|    return is_full
  ------------------
  |  Branch (640:12): [True: 176k, False: 36.6k]
  ------------------
  641|   212k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 69.8k, False: 106k]
  ------------------
  642|   176k|                          : make_full_pos(child, p.shift() - B)
  643|   106k|                                .visit(v, idx, args...))
  644|   212k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 13.3k, False: 23.3k]
  ------------------
  645|  36.6k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  36.6k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  23.3k|                            .visit(v, idx, args...));
  648|   212k|}
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  207|   195k|    {
  208|   195k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|   195k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
 1405|   220k|    {
 1406|   220k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|   220k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
 1322|   220k|    {
 1323|   220k|        return towards_oh(v, idx, index(idx), args...);
 1324|   220k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE10towards_ohINS1_18region_for_visitorIiEEJEEEDcT_mjDpOT0_:
 1336|   220k|    {
 1337|   220k|        assert(offset_hint == index(idx));
  ------------------
  |  Branch (1337:9): [True: 220k, False: 0]
  ------------------
 1338|   220k|        auto is_leaf = shift_ == BL;
 1339|   220k|        auto child   = node_->inner()[offset_hint];
 1340|   220k|        return is_leaf
  ------------------
  |  Branch (1340:16): [True: 119k, False: 100k]
  ------------------
 1341|   220k|                   ? make_full_leaf_pos(child).visit(v, idx, args...)
 1342|   220k|                   : make_full_pos(child, shift_ - B).visit(v, idx, args...);
 1343|   220k|    }
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  112|  17.0k|    {
  113|  17.0k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  17.0k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_18region_for_visitorIiEEJRmEEEDcT_DpOT0_:
  336|  26.0k|    {
  337|  26.0k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  26.0k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7towardsINS1_18region_for_visitorIiEEJEEEDcT_mDpOT0_:
  297|  26.0k|    {
  298|  26.0k|        return towards_oh_ch_regular(
  299|  26.0k|            *this, v, idx, index(idx), count(), args...);
  300|  26.0k|    }
_ZN5immer6detail4rbts21towards_oh_ch_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_18region_for_visitorIiEEJEEEDcOT_T0_mjjDpOT1_:
  632|  26.0k|{
  633|  26.0k|    constexpr auto B  = bits<Pos>;
  634|  26.0k|    constexpr auto BL = bits_leaf<Pos>;
  635|  26.0k|    assert(offset_hint == p.index(idx));
  ------------------
  |  Branch (635:5): [True: 26.0k, False: 0]
  ------------------
  636|  26.0k|    assert(count_hint == p.count());
  ------------------
  |  Branch (636:5): [True: 26.0k, False: 0]
  ------------------
  637|  26.0k|    auto is_leaf = p.shift() == BL;
  638|  26.0k|    auto child   = p.node()->inner()[offset_hint];
  639|  26.0k|    auto is_full = offset_hint + 1 != count_hint;
  640|  26.0k|    return is_full
  ------------------
  |  Branch (640:12): [True: 19.6k, False: 6.43k]
  ------------------
  641|  26.0k|               ? (is_leaf ? make_full_leaf_pos(child).visit(v, idx, args...)
  ------------------
  |  Branch (641:19): [True: 6.37k, False: 13.2k]
  ------------------
  642|  19.6k|                          : make_full_pos(child, p.shift() - B)
  643|  13.2k|                                .visit(v, idx, args...))
  644|  26.0k|               : (is_leaf
  ------------------
  |  Branch (644:19): [True: 3.74k, False: 2.68k]
  ------------------
  645|  6.43k|                      ? make_leaf_pos(child, p.size()).visit(v, idx, args...)
  646|  6.43k|                      : make_regular_pos(child, p.shift() - B, p.size())
  647|  2.68k|                            .visit(v, idx, args...));
  648|  26.0k|}
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1405|  15.2k|    {
 1406|  15.2k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  15.2k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
 1202|  15.2k|    {
 1203|  15.2k|        auto p = node_->inner();
 1204|  15.2k|        auto e = p + branches<B>;
 1205|  15.2k|        if (shift_ == BL) {
  ------------------
  |  Branch (1205:13): [True: 14.1k, False: 1.12k]
  ------------------
 1206|   122k|            for (; p != e; ++p) {
  ------------------
  |  Branch (1206:20): [True: 109k, False: 13.2k]
  ------------------
 1207|   109k|                IMMER_PREFETCH(p + 1);
 1208|   109k|                if (!make_full_leaf_pos(*p).visit(v, args...))
  ------------------
  |  Branch (1208:21): [True: 895, False: 108k]
  ------------------
 1209|    895|                    return false;
 1210|   109k|            }
 1211|  14.1k|        } else {
 1212|  1.12k|            auto ss = shift_ - B;
 1213|  9.35k|            for (; p != e; ++p)
  ------------------
  |  Branch (1213:20): [True: 8.46k, False: 891]
  ------------------
 1214|  8.46k|                if (!make_full_pos(*p, ss).visit(v, args...))
  ------------------
  |  Branch (1214:21): [True: 230, False: 8.23k]
  ------------------
 1215|    230|                    return false;
 1216|  1.12k|        }
 1217|  14.1k|        return true;
 1218|  15.2k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|    869|    {
 1037|    869|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|    869|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1007|    869|    {
 1008|    869|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 869, False: 0]
  ------------------
 1009|    869|        auto is_leaf = shift_ == BL;
 1010|    869|        auto child   = node_->inner()[idx];
 1011|    869|        auto lsize   = size(idx);
 1012|    869|        auto is_full = idx + 1 < count();
 1013|    869|        return is_full
  ------------------
  |  Branch (1013:16): [True: 869, False: 0]
  ------------------
 1014|    869|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 0, False: 869]
  ------------------
 1015|    869|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|    869|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|    869|                   : (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|    869|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  3.82k|    {
 1037|  3.82k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.82k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1007|  4.96k|    {
 1008|  4.96k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 4.96k, False: 0]
  ------------------
 1009|  4.96k|        auto is_leaf = shift_ == BL;
 1010|  4.96k|        auto child   = node_->inner()[idx];
 1011|  4.96k|        auto lsize   = size(idx);
 1012|  4.96k|        auto is_full = idx + 1 < count();
 1013|  4.96k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 3.01k, False: 1.94k]
  ------------------
 1014|  4.96k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 2.54k, False: 467]
  ------------------
 1015|  3.01k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  3.01k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  4.96k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 1.12k, False: 826]
  ------------------
 1018|  1.94k|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|  1.94k|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|    826|                                .visit(v, args...));
 1021|  4.96k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  144|   944k|    {
  145|   944k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|   944k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1036|  12.9k|    {
 1037|  12.9k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  12.9k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
  831|  12.9k|    {
  832|  12.9k|        return each_pred_regular(*this, v, args...);
  833|  12.9k|    }
_ZN5immer6detail4rbts17each_pred_regularIRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSC_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEEbSM_SN_DpOT1_:
  365|  12.9k|{
  366|  12.9k|    constexpr auto B  = bits<Pos>;
  367|  12.9k|    constexpr auto BL = bits_leaf<Pos>;
  368|  12.9k|    auto n            = p.node()->inner();
  369|  12.9k|    auto last         = p.count() - 1;
  370|  12.9k|    auto e            = n + last;
  371|  12.9k|    if (p.shift() == BL) {
  ------------------
  |  Branch (371:9): [True: 10.0k, False: 2.91k]
  ------------------
  372|  69.0k|        for (; n != e; ++n) {
  ------------------
  |  Branch (372:16): [True: 59.8k, False: 9.12k]
  ------------------
  373|  59.8k|            IMMER_PREFETCH(n + 1);
  374|  59.8k|            if (!make_full_leaf_pos(*n).visit(v, args...))
  ------------------
  |  Branch (374:17): [True: 931, False: 58.9k]
  ------------------
  375|    931|                return false;
  376|  59.8k|        }
  377|  9.12k|        return make_leaf_pos(*n, p.size()).visit(v, args...);
  378|  10.0k|    } else {
  379|  2.91k|        auto ss = p.shift() - B;
  380|  7.02k|        for (; n != e; ++n)
  ------------------
  |  Branch (380:16): [True: 4.57k, False: 2.45k]
  ------------------
  381|  4.57k|            if (!make_full_pos(*n, ss).visit(v, args...))
  ------------------
  |  Branch (381:17): [True: 458, False: 4.11k]
  ------------------
  382|    458|                return false;
  383|  2.45k|        return make_regular_pos(*n, ss, p.size()).visit(v, args...);
  384|  2.91k|    }
  385|  12.9k|}
_ZN5immer6detail4rbts8leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  112|  11.1k|    {
  113|  11.1k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  114|  11.1k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
  336|  3.36k|    {
  337|  3.36k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
  338|  3.36k|    }
_ZN5immer6detail4rbts11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
  249|  3.36k|    {
  250|  3.36k|        return each_pred_regular(*this, v, args...);
  251|  3.36k|    }
_ZN5immer6detail4rbts17each_pred_regularIRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSC_Lj3ELj3EEEEEDaOT_EUlSL_T0_E_EEEbSM_SN_DpOT1_:
  365|  3.36k|{
  366|  3.36k|    constexpr auto B  = bits<Pos>;
  367|  3.36k|    constexpr auto BL = bits_leaf<Pos>;
  368|  3.36k|    auto n            = p.node()->inner();
  369|  3.36k|    auto last         = p.count() - 1;
  370|  3.36k|    auto e            = n + last;
  371|  3.36k|    if (p.shift() == BL) {
  ------------------
  |  Branch (371:9): [True: 2.23k, False: 1.13k]
  ------------------
  372|  6.00k|        for (; n != e; ++n) {
  ------------------
  |  Branch (372:16): [True: 4.00k, False: 2.00k]
  ------------------
  373|  4.00k|            IMMER_PREFETCH(n + 1);
  374|  4.00k|            if (!make_full_leaf_pos(*n).visit(v, args...))
  ------------------
  |  Branch (374:17): [True: 230, False: 3.77k]
  ------------------
  375|    230|                return false;
  376|  4.00k|        }
  377|  2.00k|        return make_leaf_pos(*n, p.size()).visit(v, args...);
  378|  2.23k|    } else {
  379|  1.13k|        auto ss = p.shift() - B;
  380|  1.93k|        for (; n != e; ++n)
  ------------------
  |  Branch (380:16): [True: 1.02k, False: 912]
  ------------------
  381|  1.02k|            if (!make_full_pos(*n, ss).visit(v, args...))
  ------------------
  |  Branch (381:17): [True: 222, False: 802]
  ------------------
  382|    222|                return false;
  383|    912|        return make_regular_pos(*n, ss, p.size()).visit(v, args...);
  384|  1.13k|    }
  385|  3.36k|}
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  4.95k|    {
 1037|  4.95k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  4.95k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  4.95k|    {
 1794|  4.95k|        auto child      = node_->inner()[offset];
 1795|  4.95k|        auto child_size = size(offset);
 1796|  4.95k|        auto is_leaf    = shift_ == BL;
 1797|  4.95k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 4.95k]
  ------------------
 1798|  4.95k|                       : visit_maybe_relaxed_sub(
 1799|  4.95k|                             child, shift_ - B, child_size, v, args...);
 1800|  4.95k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  4.95k|{
 1839|  4.95k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 4.95k, False: 0]
  ------------------
 1840|  4.95k|    auto relaxed = node->relaxed();
 1841|  4.95k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.12k, False: 3.82k]
  ------------------
 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|  3.82k|    } else {
 1846|  3.82k|        return make_regular_sub_pos(node, shift, size)
 1847|  3.82k|            .visit(v, std::forward<Args>(args)...);
 1848|  3.82k|    }
 1849|  4.95k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  1.12k|    {
 1814|  1.12k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.12k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1007|  8.38k|    {
 1008|  8.38k|        assert(idx < count());
  ------------------
  |  Branch (1008:9): [True: 8.38k, False: 0]
  ------------------
 1009|  8.38k|        auto is_leaf = shift_ == BL;
 1010|  8.38k|        auto child   = node_->inner()[idx];
 1011|  8.38k|        auto lsize   = size(idx);
 1012|  8.38k|        auto is_full = idx + 1 < count();
 1013|  8.38k|        return is_full
  ------------------
  |  Branch (1013:16): [True: 7.82k, False: 557]
  ------------------
 1014|  8.38k|                   ? (is_leaf
  ------------------
  |  Branch (1014:23): [True: 5.12k, False: 2.70k]
  ------------------
 1015|  7.82k|                          ? make_full_leaf_pos(child).visit(v, args...)
 1016|  7.82k|                          : make_full_pos(child, shift_ - B).visit(v, args...))
 1017|  8.38k|                   : (is_leaf
  ------------------
  |  Branch (1017:23): [True: 557, False: 0]
  ------------------
 1018|    557|                          ? make_leaf_sub_pos(child, lsize).visit(v, args...)
 1019|    557|                          : make_regular_sub_pos(child, shift_ - B, lsize)
 1020|      0|                                .visit(v, args...));
 1021|  8.38k|    }
_ZN5immer6detail4rbts13full_leaf_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  207|  10.8k|    {
  208|  10.8k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  209|  10.8k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE12nth_sub_leafINS1_14equals_visitorEJRNS1_13full_leaf_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1804|  10.8k|    {
 1805|  10.8k|        assert(shift_ == BL);
  ------------------
  |  Branch (1805:9): [True: 10.8k, False: 0]
  ------------------
 1806|  10.8k|        auto child      = node_->inner()[offset];
 1807|  10.8k|        auto child_size = size(offset);
 1808|  10.8k|        return make_leaf_sub_pos(child, child_size).visit(v, args...);
 1809|  10.8k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_13full_leaf_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
  144|  10.8k|    {
  145|  10.8k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  10.8k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1405|  3.81k|    {
 1406|  3.81k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1407|  3.81k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcjT_DpOT0_:
 1793|  3.81k|    {
 1794|  3.81k|        auto child      = node_->inner()[offset];
 1795|  3.81k|        auto child_size = size(offset);
 1796|  3.81k|        auto is_leaf    = shift_ == BL;
 1797|  3.81k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 0, False: 3.81k]
  ------------------
 1798|  3.81k|                       : visit_maybe_relaxed_sub(
 1799|  3.81k|                             child, shift_ - B, child_size, v, args...);
 1800|  3.81k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcPT_jmT0_DpOT1_:
 1838|  3.81k|{
 1839|  3.81k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 3.81k, False: 0]
  ------------------
 1840|  3.81k|    auto relaxed = node->relaxed();
 1841|  3.81k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.65k, False: 2.15k]
  ------------------
 1842|  1.65k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.65k, False: 0]
  ------------------
 1843|  1.65k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.65k|            .visit(v, std::forward<Args>(args)...);
 1845|  2.15k|    } else {
 1846|  2.15k|        return make_regular_sub_pos(node, shift, size)
 1847|  2.15k|            .visit(v, std::forward<Args>(args)...);
 1848|  2.15k|    }
 1849|  3.81k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1813|  1.65k|    {
 1814|  1.65k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.65k|    }
_ZN5immer6detail4rbts8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_14equals_visitor10this_aux_tEJRjRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcjT_DpOT0_:
 1386|  6.85k|    {
 1387|  6.85k|        assert(idx < count());
  ------------------
  |  Branch (1387:9): [True: 6.85k, False: 0]
  ------------------
 1388|  6.85k|        auto is_leaf = shift_ == BL;
 1389|  6.85k|        auto child   = node_->inner()[idx];
 1390|  6.85k|        return is_leaf ? make_full_leaf_pos(child).visit(v, args...)
  ------------------
  |  Branch (1390:16): [True: 5.74k, False: 1.10k]
  ------------------
 1391|  6.85k|                       : make_full_pos(child, shift_ - B).visit(v, args...);
 1392|  6.85k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_8full_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERmEEEDcT_DpOT0_:
 1036|  2.15k|    {
 1037|  2.15k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  2.15k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE7nth_subINS1_24for_each_chunk_p_visitorEJZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcjSK_DpOT0_:
 1793|  66.4k|    {
 1794|  66.4k|        auto child      = node_->inner()[offset];
 1795|  66.4k|        auto child_size = size(offset);
 1796|  66.4k|        auto is_leaf    = shift_ == BL;
 1797|  66.4k|        return is_leaf ? make_leaf_sub_pos(child, child_size).visit(v, args...)
  ------------------
  |  Branch (1797:16): [True: 31.0k, False: 35.3k]
  ------------------
 1798|  66.4k|                       : visit_maybe_relaxed_sub(
 1799|  35.3k|                             child, shift_ - B, child_size, v, args...);
 1800|  66.4k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSI_T0_E_EEEDcPSI_jmSK_DpOT1_:
 1838|   154k|{
 1839|   154k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 154k, False: 0]
  ------------------
 1840|   154k|    auto relaxed = node->relaxed();
 1841|   154k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 142k, False: 12.1k]
  ------------------
 1842|   142k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 142k, False: 0]
  ------------------
 1843|   142k|        return make_relaxed_pos(node, shift, relaxed)
 1844|   142k|            .visit(v, std::forward<Args>(args)...);
 1845|   142k|    } else {
 1846|  12.1k|        return make_regular_sub_pos(node, shift, size)
 1847|  12.1k|            .visit(v, std::forward<Args>(args)...);
 1848|  12.1k|    }
 1849|   154k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEDcSK_DpOT0_:
 1813|   142k|    {
 1814|   142k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|   142k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE9each_predINS1_24for_each_chunk_p_visitorEJRZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEEEDaOT_EUlSK_T0_E_EEEbSK_DpOT0_:
 1482|   142k|    {
 1483|   142k|        auto p = node_->inner();
 1484|   142k|        auto s = size_t{};
 1485|   142k|        auto n = count();
 1486|   142k|        if (shift_ == BL) {
  ------------------
  |  Branch (1486:13): [True: 125k, False: 17.1k]
  ------------------
 1487|  1.03M|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1487:39): [True: 912k, False: 124k]
  ------------------
 1488|   912k|                IMMER_PREFETCH(p + i + 1);
 1489|   912k|                if (!make_leaf_sub_pos(p[i], relaxed_->d.sizes[i] - s)
  ------------------
  |  Branch (1489:21): [True: 1.22k, False: 910k]
  ------------------
 1490|   912k|                         .visit(v, args...))
 1491|  1.22k|                    return false;
 1492|   910k|                s = relaxed_->d.sizes[i];
 1493|   910k|            }
 1494|   125k|        } else {
 1495|  17.1k|            auto ss = shift_ - B;
 1496|   135k|            for (auto i = count_t{0}; i < n; ++i) {
  ------------------
  |  Branch (1496:39): [True: 119k, False: 16.4k]
  ------------------
 1497|   119k|                if (!visit_maybe_relaxed_sub(
  ------------------
  |  Branch (1497:21): [True: 665, False: 118k]
  ------------------
 1498|   119k|                        p[i], ss, relaxed_->d.sizes[i] - s, v, args...))
 1499|    665|                    return false;
 1500|   118k|                s = relaxed_->d.sizes[i];
 1501|   118k|            }
 1502|  17.1k|        }
 1503|   140k|        return true;
 1504|   142k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_11relaxed_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1036|  3.12k|    {
 1037|  3.12k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  3.12k|    }
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE15first_sub_innerINS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcT_DpOT0_:
 1783|  1.26k|    {
 1784|  1.26k|        assert(shift_ > BL);
  ------------------
  |  Branch (1784:9): [True: 1.26k, False: 0]
  ------------------
 1785|  1.26k|        auto child      = node_->inner()[0];
 1786|  1.26k|        auto child_size = relaxed_->d.sizes[0];
 1787|  1.26k|        return visit_maybe_relaxed_sub(
 1788|  1.26k|            child, shift_ - B, child_size, v, args...);
 1789|  1.26k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcPT_jmT0_DpOT1_:
 1838|  1.26k|{
 1839|  1.26k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 1.26k, False: 0]
  ------------------
 1840|  1.26k|    auto relaxed = node->relaxed();
 1841|  1.26k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 1.26k, False: 0]
  ------------------
 1842|  1.26k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 1.26k, False: 0]
  ------------------
 1843|  1.26k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  1.26k|            .visit(v, std::forward<Args>(args)...);
 1845|  1.26k|    } else {
 1846|      0|        return make_regular_sub_pos(node, shift, size)
 1847|      0|            .visit(v, std::forward<Args>(args)...);
 1848|      0|    }
 1849|  1.26k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJRNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERPSC_RjRmEEEDcT_DpOT0_:
 1813|  1.26k|    {
 1814|  1.26k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  1.26k|    }
_ZN5immer6detail4rbts23visit_maybe_relaxed_subINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcPT_jmT0_DpOT1_:
 1838|  8.55k|{
 1839|  8.55k|    assert(node);
  ------------------
  |  Branch (1839:5): [True: 8.55k, False: 0]
  ------------------
 1840|  8.55k|    auto relaxed = node->relaxed();
 1841|  8.55k|    if (relaxed) {
  ------------------
  |  Branch (1841:9): [True: 2.69k, False: 5.86k]
  ------------------
 1842|  2.69k|        assert(size == relaxed->d.sizes[relaxed->d.count - 1]);
  ------------------
  |  Branch (1842:9): [True: 2.69k, False: 0]
  ------------------
 1843|  2.69k|        return make_relaxed_pos(node, shift, relaxed)
 1844|  2.69k|            .visit(v, std::forward<Args>(args)...);
 1845|  5.86k|    } else {
 1846|  5.86k|        return make_regular_sub_pos(node, shift, size)
 1847|  5.86k|            .visit(v, std::forward<Args>(args)...);
 1848|  5.86k|    }
 1849|  8.55k|}
_ZN5immer6detail4rbts11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRNS1_15regular_sub_posISC_EERNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1813|  2.69k|    {
 1814|  2.69k|        return Visitor::visit_relaxed(*this, std::forward<Args>(args)...);
 1815|  2.69k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRSD_RNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEEmEEEDcT_DpOT0_:
 1036|  5.86k|    {
 1037|  5.86k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  5.86k|    }
_ZN5immer6detail4rbts15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitor3rrbEJNS1_16rrbtree_iteratorIiSB_Lj3ELj3EEERKPSC_RKjRmEEEDcT_DpOT0_:
 1036|  8.55k|    {
 1037|  8.55k|        return Visitor::visit_regular(*this, std::forward<Args>(args)...);
 1038|  8.55k|    }
_ZN5immer6detail4rbts12leaf_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEE5visitINS1_14equals_visitorEJRKPSC_EEEDcT_DpOT0_:
  144|  6.91k|    {
  145|  6.91k|        return Visitor::visit_leaf(*this, std::forward<Args>(args)...);
  146|  6.91k|    }

_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2Ev:
  114|  1.34M|        : size{0}
  115|  1.34M|        , shift{BL}
  116|  1.34M|        , root{empty_root()}
  117|  1.34M|        , tail{empty_tail()}
  118|  1.34M|    {
  119|       |        assert(check_tree());
  ------------------
  |  Branch (119:9): [True: 1.34M, False: 0]
  ------------------
  120|  1.34M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10empty_rootEv:
   61|  1.35M|    {
   62|  1.35M|        static const auto empty_ = [] {
   63|  1.35M|            constexpr auto size = node_t::sizeof_inner_n(0);
   64|  1.35M|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   65|  1.35M|                storage;
   66|  1.35M|            return node_t::make_inner_n_into(&storage, size, 0u);
   67|  1.35M|        }();
   68|  1.35M|        return empty_->inc();
   69|  1.35M|    }
_ZZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10empty_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_policyELb1ELb1EEELj3ELj3EE10empty_tailEv:
   72|  1.34M|    {
   73|  1.34M|        static const auto empty_ = [] {
   74|  1.34M|            constexpr auto size = node_t::sizeof_leaf_n(0);
   75|  1.34M|            static std::aligned_storage_t<size, alignof(std::max_align_t)>
   76|  1.34M|                storage;
   77|  1.34M|            return node_t::make_leaf_n_into(&storage, size, 0u);
   78|  1.34M|        }();
   79|  1.34M|        return empty_->inc();
   80|  1.34M|    }
_ZZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10empty_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_policyELb1ELb1EEELj3ELj3EE10check_treeEv:
 1372|  3.39M|    {
 1373|  3.39M|        IMMER_INVALID_STATE_ASSERT(shift <= sizeof(size_t) * 8 - BL);
  ------------------
  |  |   32|  3.39M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 3.39M]
  |  |  ------------------
  |  |   33|  3.39M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1374|  3.39M|        IMMER_INVALID_STATE_ASSERT(shift >= BL);
  ------------------
  |  |   32|  3.39M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 3.39M]
  |  |  ------------------
  |  |   33|  3.39M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1375|  3.39M|        IMMER_INVALID_STATE_ASSERT(tail_offset() <= size);
  ------------------
  |  |   32|  3.39M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 3.39M]
  |  |  ------------------
  |  |   33|  3.39M|    IMMER_THROW(invalid_tree{})
  |  |  ------------------
  |  |  |  |   51|      0|#define IMMER_THROW(expr) throw expr
  |  |  ------------------
  ------------------
 1376|  3.39M|        IMMER_INVALID_STATE_ASSERT(tail_size() <= branches<BL>);
  ------------------
  |  |   32|  3.39M|    if (!(expr))                                                               \
  |  |  ------------------
  |  |  |  Branch (32:9): [True: 0, False: 3.39M]
  |  |  ------------------
  |  |   33|  3.39M|    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|  3.39M|        return true;
 1382|  3.39M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11tail_offsetEv:
  197|  18.6M|    {
  198|  18.6M|        auto r = root->relaxed();
  199|  18.6M|        assert(r == nullptr || r->d.count);
  ------------------
  |  Branch (199:9): [True: 7.32M, False: 11.3M]
  |  Branch (199:9): [True: 11.3M, False: 0]
  |  Branch (199:9): [True: 18.6M, False: 0]
  ------------------
  200|  18.6M|        return r      ? r->d.sizes[r->d.count - 1]
  ------------------
  |  Branch (200:16): [True: 11.3M, False: 7.32M]
  ------------------
  201|  18.6M|               : size ? (size - 1) & ~mask<BL>
  ------------------
  |  Branch (201:18): [True: 3.27M, False: 4.05M]
  ------------------
  202|       |                      /* otherwise */
  203|  7.32M|                      : 0;
  204|  18.6M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9tail_sizeEv:
  194|  3.79M|    auto tail_size() const { return size - tail_offset(); }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EED2Ev:
  184|  3.39M|    ~rrbtree() { dec(); }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE3decEv:
  192|  3.39M|    void dec() const { traverse(dec_visitor()); }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE8traverseINS1_11dec_visitorEJEEEvT_DpOT0_:
  208|  3.39M|    {
  209|  3.39M|        auto tail_off  = tail_offset();
  210|  3.39M|        auto tail_size = size - tail_off;
  211|       |
  212|  3.39M|        if (tail_off)
  ------------------
  |  Branch (212:13): [True: 1.92M, False: 1.47M]
  ------------------
  213|  1.92M|            visit_maybe_relaxed_sub(root, shift, tail_off, v, args...);
  214|  1.47M|        else
  215|  1.47M|            make_empty_regular_pos(root).visit(v, args...);
  216|       |
  217|  3.39M|        if (tail_size)
  ------------------
  |  Branch (217:13): [True: 2.05M, False: 1.34M]
  ------------------
  218|  2.05M|            make_leaf_sub_pos(tail, tail_size).visit(v, args...);
  219|  1.34M|        else
  220|  1.34M|            make_empty_leaf_pos(tail).visit(v, args...);
  221|  3.39M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9push_backEi:
  500|   352k|    {
  501|   352k|        auto ts = tail_size();
  502|   352k|        if (ts < branches<BL>) {
  ------------------
  |  Branch (502:13): [True: 298k, False: 53.8k]
  ------------------
  503|   298k|            auto new_tail =
  504|   298k|                node_t::copy_leaf_emplace(tail, ts, std::move(value));
  505|   298k|            return {size + 1, shift, root->inc(), new_tail};
  506|   298k|        } else {
  507|  53.8k|            using std::get;
  508|  53.8k|            auto new_tail = node_t::make_leaf_n(1u, std::move(value));
  509|  53.8k|            auto tail_off = tail_offset();
  510|  53.8k|            IMMER_TRY {
  ------------------
  |  |   49|  53.8k|#define IMMER_TRY try
  ------------------
  511|  53.8k|                auto new_root =
  512|  53.8k|                    push_tail(root, shift, tail_off, tail, size - tail_off);
  513|  53.8k|                tail->inc();
  514|  53.8k|                return {size + 1, get<0>(new_root), get<1>(new_root), new_tail};
  515|  53.8k|            }
  516|  53.8k|            IMMER_CATCH (...) {
  517|      0|                node_t::delete_leaf(new_tail, 1u);
  518|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  519|      0|            }
  520|  53.8k|        }
  521|   352k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2EmjPNS1_4nodeIiSA_Lj3ELj3EEESE_:
  127|  2.05M|        : size{sz}
  128|  2.05M|        , shift{sh}
  129|  2.05M|        , root{r}
  130|  2.05M|        , tail{t}
  131|  2.05M|    {
  132|  2.05M|#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|  2.05M|        try {
  137|  2.05M|            check_tree();
  138|  2.05M|        } catch (...) {
  139|       |            // This not fully constructed rrbtree owns the nodes already, have
  140|       |            // to dec them.
  141|      0|            if (r && t)
  ------------------
  |  Branch (141:17): [True: 0, False: 0]
  |  Branch (141:22): [True: 0, False: 0]
  ------------------
  142|      0|                dec();
  143|      0|            throw;
  144|      0|        }
  145|       |#else
  146|       |        assert(check_tree());
  147|       |#endif
  148|  2.05M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9push_tailEPNS1_4nodeIiSA_Lj3ELj3EEEjmSE_j:
  369|   360k|    {
  370|   360k|        if (auto r = root->relaxed()) {
  ------------------
  |  Branch (370:18): [True: 57.7k, False: 302k]
  ------------------
  371|  57.7k|            auto new_root =
  372|  57.7k|                make_relaxed_pos(root, shift, r)
  373|  57.7k|                    .visit(push_tail_visitor<node_t>{}, tail, tail_size);
  374|  57.7k|            if (new_root)
  ------------------
  |  Branch (374:17): [True: 55.8k, False: 1.91k]
  ------------------
  375|  55.8k|                return std::make_tuple(shift, new_root);
  376|  1.91k|            else {
  377|  1.91k|                auto new_root = node_t::make_inner_r_n(2);
  378|  1.91k|                IMMER_TRY {
  ------------------
  |  |   49|  1.91k|#define IMMER_TRY try
  ------------------
  379|  1.91k|                    auto new_path        = node_t::make_path(shift, tail);
  380|  1.91k|                    new_root->inner()[0] = root->inc();
  381|  1.91k|                    new_root->inner()[1] = new_path;
  382|  1.91k|                    new_root->relaxed()->d.sizes[0] = size;
  383|  1.91k|                    new_root->relaxed()->d.sizes[1] = size + tail_size;
  384|  1.91k|                    assert(size);
  ------------------
  |  Branch (384:21): [True: 1.91k, False: 0]
  ------------------
  385|  1.91k|                    assert(tail_size);
  ------------------
  |  Branch (385:21): [True: 1.91k, False: 0]
  ------------------
  386|  1.91k|                    new_root->relaxed()->d.count = 2u;
  387|  1.91k|                }
  388|  1.91k|                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|  1.91k|                return std::make_tuple(shift + B, new_root);
  393|  1.91k|            }
  394|   302k|        } else if (size == size_t{branches<B>} << shift) {
  ------------------
  |  Branch (394:20): [True: 3.82k, False: 298k]
  ------------------
  395|  3.82k|            auto new_root = node_t::make_inner_n(2);
  396|  3.82k|            IMMER_TRY {
  ------------------
  |  |   49|  3.82k|#define IMMER_TRY try
  ------------------
  397|  3.82k|                auto new_path        = node_t::make_path(shift, tail);
  398|  3.82k|                new_root->inner()[0] = root->inc();
  399|  3.82k|                new_root->inner()[1] = new_path;
  400|  3.82k|            }
  401|  3.82k|            IMMER_CATCH (...) {
  402|      0|                node_t::delete_inner(new_root, 2);
  403|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  404|      0|            }
  405|  3.82k|            return std::make_tuple(shift + B, new_root);
  406|   298k|        } else if (size) {
  ------------------
  |  Branch (406:20): [True: 285k, False: 13.2k]
  ------------------
  407|   285k|            auto new_root = make_regular_sub_pos(root, shift, size)
  408|   285k|                                .visit(push_tail_visitor<node_t>{}, tail);
  409|   285k|            return std::make_tuple(shift, new_root);
  410|   285k|        } else {
  411|  13.2k|            return std::make_tuple(shift, node_t::make_path(shift, tail));
  412|  13.2k|        }
  413|   360k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2EOSB_:
  157|  1.24M|        : rrbtree{}
  158|  1.24M|    {
  159|  1.24M|        swap(*this, other);
  160|  1.24M|    }
_ZN5immer6detail4rbts4swapERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEESC_:
  176|  4.64M|    {
  177|  4.64M|        using std::swap;
  178|  4.64M|        swap(x.size, y.size);
  179|  4.64M|        swap(x.shift, y.shift);
  180|  4.64M|        swap(x.root, y.root);
  181|  4.64M|        swap(x.tail, y.tail);
  182|  4.64M|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEaSEOSB_:
  170|  3.39M|    {
  171|  3.39M|        swap(*this, other);
  172|  3.39M|        return *this;
  173|  3.39M|    }
flex-vector-bo.cpp:_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSG_E_EESB_mOSG_:
  580|   151k|    {
  581|   151k|        auto tail_off = tail_offset();
  582|   151k|        if (idx >= tail_off) {
  ------------------
  |  Branch (582:13): [True: 58.3k, False: 93.3k]
  ------------------
  583|  58.3k|            auto tail_size = size - tail_off;
  584|  58.3k|            auto new_tail =
  585|  58.3k|                make_leaf_sub_pos(tail, tail_size)
  586|  58.3k|                    .visit(update_visitor<node_t>{}, idx - tail_off, fn);
  587|  58.3k|            return {size, shift, root->inc(), new_tail};
  588|  93.3k|        } else {
  589|  93.3k|            auto new_root = visit_maybe_relaxed_sub(
  590|  93.3k|                root, shift, tail_off, update_visitor<node_t>{}, idx, fn);
  591|  93.3k|            return {size, shift, new_root, tail->inc()};
  592|  93.3k|        }
  593|   151k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4takeEm:
  647|  24.3k|    {
  648|  24.3k|        auto tail_off = tail_offset();
  649|  24.3k|        if (new_size == 0) {
  ------------------
  |  Branch (649:13): [True: 3.94k, False: 20.4k]
  ------------------
  650|  3.94k|            return {};
  651|  20.4k|        } else if (new_size >= size) {
  ------------------
  |  Branch (651:20): [True: 1.06k, False: 19.3k]
  ------------------
  652|  1.06k|            return *this;
  653|  19.3k|        } else if (new_size > tail_off) {
  ------------------
  |  Branch (653:20): [True: 1.65k, False: 17.6k]
  ------------------
  654|  1.65k|            auto new_tail = node_t::copy_leaf(tail, new_size - tail_off);
  655|  1.65k|            return {new_size, shift, root->inc(), new_tail};
  656|  17.6k|        } else {
  657|  17.6k|            using std::get;
  658|  17.6k|            auto l = new_size - 1;
  659|  17.6k|            auto v = slice_right_visitor<node_t>();
  660|  17.6k|            auto r = visit_maybe_relaxed_sub(root, shift, tail_off, v, l);
  661|  17.6k|            auto new_shift = get<0>(r);
  662|  17.6k|            auto new_root  = get<1>(r);
  663|  17.6k|            auto new_tail  = get<3>(r);
  664|  17.6k|            if (new_root) {
  ------------------
  |  Branch (664:17): [True: 13.3k, False: 4.31k]
  ------------------
  665|  13.3k|                IMMER_ASSERT_TAGGED(new_root->compute_shift() == get<0>(r));
  ------------------
  |  |   68|  13.3k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (665:17): [True: 13.3k, False: 0]
  ------------------
  666|  13.3k|                assert(new_root->check(new_shift, new_size - get<2>(r)));
  ------------------
  |  Branch (666:17): [True: 13.3k, False: 0]
  ------------------
  667|  13.3k|                return {new_size, new_shift, new_root, new_tail};
  668|  13.3k|            } else {
  669|  4.31k|                return {new_size, BL, empty_root(), new_tail};
  670|  4.31k|            }
  671|  17.6k|        }
  672|  24.3k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2ERKSB_:
  151|  8.85k|        : rrbtree{other.size, other.shift, other.root, other.tail}
  152|  8.85k|    {
  153|  8.85k|        inc();
  154|  8.85k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE3incEv:
  187|  8.85k|    {
  188|  8.85k|        root->inc();
  189|  8.85k|        tail->inc();
  190|  8.85k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4dropEm:
  711|  36.7k|    {
  712|  36.7k|        if (elems == 0) {
  ------------------
  |  Branch (712:13): [True: 2.52k, False: 34.1k]
  ------------------
  713|  2.52k|            return *this;
  714|  34.1k|        } else if (elems >= size) {
  ------------------
  |  Branch (714:20): [True: 1.89k, False: 32.3k]
  ------------------
  715|  1.89k|            return {};
  716|  32.3k|        } else if (elems == tail_offset()) {
  ------------------
  |  Branch (716:20): [True: 2.06k, False: 30.2k]
  ------------------
  717|  2.06k|            return {size - elems, BL, empty_root(), tail->inc()};
  718|  30.2k|        } else if (elems > tail_offset()) {
  ------------------
  |  Branch (718:20): [True: 1.76k, False: 28.4k]
  ------------------
  719|  1.76k|            auto tail_off = tail_offset();
  720|  1.76k|            auto new_tail =
  721|  1.76k|                node_t::copy_leaf(tail, elems - tail_off, size - tail_off);
  722|  1.76k|            return {size - elems, BL, empty_root(), new_tail};
  723|  28.4k|        } else {
  724|  28.4k|            using std::get;
  725|  28.4k|            auto v = slice_left_visitor<node_t>();
  726|  28.4k|            auto r =
  727|  28.4k|                visit_maybe_relaxed_sub(root, shift, tail_offset(), v, elems);
  728|  28.4k|            auto new_root  = get<1>(r);
  729|  28.4k|            auto new_shift = get<0>(r);
  730|  28.4k|            return {size - elems, new_shift, new_root, tail->inc()};
  731|  28.4k|        }
  732|  36.7k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE8max_sizeEv:
   54|  2.54M|    {
   55|  2.54M|        auto S = sizeof(size_t) * 8;
   56|  2.54M|        return ((size_t{1} << BL) - std::min(size_t{BL}, size_t{2})) *
   57|  2.54M|               ipow((size_t{1} << B) - 2, (S - BL) / B);
   58|  2.54M|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6concatERKSB_:
  735|   655k|    {
  736|   655k|        assert(r.size + size <= max_size());
  ------------------
  |  Branch (736:9): [True: 655k, False: 0]
  ------------------
  737|   655k|        using std::get;
  738|   655k|        if (size == 0)
  ------------------
  |  Branch (738:13): [True: 1.38k, False: 654k]
  ------------------
  739|  1.38k|            return r;
  740|   654k|        else if (r.size == 0)
  ------------------
  |  Branch (740:18): [True: 1.06k, False: 653k]
  ------------------
  741|  1.06k|            return *this;
  742|   653k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (742:18): [True: 324k, False: 328k]
  ------------------
  743|       |            // just concat the tail, similar to push_back
  744|   324k|            auto tail_offst = tail_offset();
  745|   324k|            auto tail_size  = size - tail_offst;
  746|   324k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (746:17): [True: 65.0k, False: 259k]
  ------------------
  747|  65.0k|                auto new_root =
  748|  65.0k|                    push_tail(root, shift, tail_offst, tail, tail_size);
  749|  65.0k|                tail->inc();
  750|  65.0k|                return {size + r.size,
  751|  65.0k|                        get<0>(new_root),
  752|  65.0k|                        get<1>(new_root),
  753|  65.0k|                        r.tail->inc()};
  754|   259k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (754:24): [True: 19.0k, False: 240k]
  ------------------
  755|  19.0k|                auto new_tail =
  756|  19.0k|                    node_t::copy_leaf(tail, tail_size, r.tail, r.size);
  757|  19.0k|                return {size + r.size, shift, root->inc(), new_tail};
  758|   240k|            } else {
  759|   240k|                auto remaining = branches<BL> - tail_size;
  760|   240k|                auto add_tail =
  761|   240k|                    node_t::copy_leaf(tail, tail_size, r.tail, remaining);
  762|   240k|                IMMER_TRY {
  ------------------
  |  |   49|   240k|#define IMMER_TRY try
  ------------------
  763|   240k|                    auto new_tail =
  764|   240k|                        node_t::copy_leaf(r.tail, remaining, r.size);
  765|   240k|                    IMMER_TRY {
  ------------------
  |  |   49|   240k|#define IMMER_TRY try
  ------------------
  766|   240k|                        auto new_root = push_tail(
  767|   240k|                            root, shift, tail_offst, add_tail, branches<BL>);
  768|   240k|                        return {size + r.size,
  769|   240k|                                get<0>(new_root),
  770|   240k|                                get<1>(new_root),
  771|   240k|                                new_tail};
  772|   240k|                    }
  773|   240k|                    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|   240k|                }
  778|   240k|                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|   240k|            }
  783|   328k|        } else if (tail_offset() == 0) {
  ------------------
  |  Branch (783:20): [True: 2.75k, False: 325k]
  ------------------
  784|  2.75k|            auto tail_offst = tail_offset();
  785|  2.75k|            auto tail_size  = size - tail_offst;
  786|  2.75k|            auto concated =
  787|  2.75k|                concat_trees(tail, tail_size, r.root, r.shift, r.tail_offset());
  788|  2.75k|            auto new_shift = concated.shift();
  789|  2.75k|            auto new_root  = concated.node();
  790|  2.75k|            IMMER_ASSERT_TAGGED(new_shift == new_root->compute_shift());
  ------------------
  |  |   68|  2.75k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (790:13): [True: 2.75k, False: 0]
  ------------------
  791|  2.75k|            assert(new_root->check(new_shift, size + r.tail_offset()));
  ------------------
  |  Branch (791:13): [True: 2.75k, False: 0]
  ------------------
  792|  2.75k|            return {size + r.size, new_shift, new_root, r.tail->inc()};
  793|   325k|        } else {
  794|   325k|            auto tail_offst = tail_offset();
  795|   325k|            auto tail_size  = size - tail_offst;
  796|   325k|            auto concated   = concat_trees(root,
  797|   325k|                                         shift,
  798|   325k|                                         tail_offst,
  799|   325k|                                         tail,
  800|   325k|                                         tail_size,
  801|   325k|                                         r.root,
  802|   325k|                                         r.shift,
  803|   325k|                                         r.tail_offset());
  804|   325k|            auto new_shift  = concated.shift();
  805|   325k|            auto new_root   = concated.node();
  806|   325k|            IMMER_ASSERT_TAGGED(new_shift == new_root->compute_shift());
  ------------------
  |  |   68|   325k|#define IMMER_ASSERT_TAGGED(assertion) assert(assertion)
  ------------------
  |  Branch (806:13): [True: 325k, False: 0]
  ------------------
  807|   325k|            assert(new_root->check(new_shift, size + r.tail_offset()));
  ------------------
  |  Branch (807:13): [True: 325k, False: 0]
  ------------------
  808|   325k|            return {size + r.size, new_shift, new_root, r.tail->inc()};
  809|   325k|        }
  810|   655k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE13push_back_mutENS9_5applyIS6_E4type4editEi:
  478|  40.2k|    {
  479|  40.2k|        auto ts = tail_size();
  480|  40.2k|        if (ts < branches<BL>) {
  ------------------
  |  Branch (480:13): [True: 30.5k, False: 9.72k]
  ------------------
  481|  30.5k|            ensure_mutable_tail(e, ts);
  482|  30.5k|            new (&tail->leaf()[ts]) T(std::move(value));
  483|  30.5k|        } else {
  484|  9.72k|            using std::get;
  485|  9.72k|            auto new_tail = node_t::make_leaf_e(e, std::move(value));
  486|  9.72k|            auto tail_off = tail_offset();
  487|  9.72k|            IMMER_TRY {
  ------------------
  |  |   49|  9.72k|#define IMMER_TRY try
  ------------------
  488|  9.72k|                push_tail_mut(e, tail_off, tail, ts);
  489|  9.72k|                tail = new_tail;
  490|  9.72k|            }
  491|  9.72k|            IMMER_CATCH (...) {
  492|      0|                node_t::delete_leaf(new_tail, 1u);
  493|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  494|      0|            }
  495|  9.72k|        }
  496|  40.2k|        ++size;
  497|  40.2k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE19ensure_mutable_tailENS9_5applyIS6_E4type4editEj:
  469|   359k|    {
  470|   359k|        if (!tail->can_mutate(e)) {
  ------------------
  |  Branch (470:13): [True: 9.30k, False: 350k]
  ------------------
  471|  9.30k|            auto new_tail = node_t::copy_leaf_e(e, tail, n);
  472|  9.30k|            dec_leaf(tail, n);
  473|  9.30k|            tail = new_tail;
  474|  9.30k|        }
  475|   359k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE13push_tail_mutENS9_5applyIS6_E4type4editEmPNS1_4nodeIiSA_Lj3ELj3EEEj:
  417|   377k|    {
  418|   377k|        if (auto r = root->relaxed()) {
  ------------------
  |  Branch (418:18): [True: 180k, False: 196k]
  ------------------
  419|   180k|            auto new_root =
  420|   180k|                make_relaxed_pos(root, shift, r)
  421|   180k|                    .visit(push_tail_mut_visitor<node_t>{}, e, tail, tail_size);
  422|   180k|            if (new_root) {
  ------------------
  |  Branch (422:17): [True: 179k, False: 730]
  ------------------
  423|   179k|                root = new_root;
  424|   179k|            } else {
  425|    730|                auto new_root = node_t::make_inner_r_e(e);
  426|    730|                IMMER_TRY {
  ------------------
  |  |   49|    730|#define IMMER_TRY try
  ------------------
  427|    730|                    auto new_path        = node_t::make_path_e(e, shift, tail);
  428|    730|                    new_root->inner()[0] = root;
  429|    730|                    new_root->inner()[1] = new_path;
  430|    730|                    new_root->relaxed()->d.sizes[0] = tail_off;
  431|    730|                    new_root->relaxed()->d.sizes[1] = tail_off + tail_size;
  432|    730|                    assert(tail_off);
  ------------------
  |  Branch (432:21): [True: 730, False: 0]
  ------------------
  433|    730|                    assert(tail_size);
  ------------------
  |  Branch (433:21): [True: 730, False: 0]
  ------------------
  434|    730|                    new_root->relaxed()->d.count = 2u;
  435|    730|                    root                         = new_root;
  436|    730|                    shift += B;
  437|    730|                }
  438|    730|                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|    730|            }
  443|   196k|        } else if (tail_off == size_t{branches<B>} << shift) {
  ------------------
  |  Branch (443:20): [True: 1.92k, False: 194k]
  ------------------
  444|  1.92k|            auto new_root = node_t::make_inner_e(e);
  445|  1.92k|            IMMER_TRY {
  ------------------
  |  |   49|  1.92k|#define IMMER_TRY try
  ------------------
  446|  1.92k|                auto new_path        = node_t::make_path_e(e, shift, tail);
  447|  1.92k|                new_root->inner()[0] = root;
  448|  1.92k|                new_root->inner()[1] = new_path;
  449|  1.92k|                root                 = new_root;
  450|  1.92k|                shift += B;
  451|  1.92k|            }
  452|  1.92k|            IMMER_CATCH (...) {
  453|      0|                node_t::delete_inner_e(new_root);
  454|      0|                IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  455|      0|            }
  456|   194k|        } else if (tail_off) {
  ------------------
  |  Branch (456:20): [True: 192k, False: 2.13k]
  ------------------
  457|   192k|            auto new_root =
  458|   192k|                make_regular_sub_pos(root, shift, tail_off)
  459|   192k|                    .visit(push_tail_mut_visitor<node_t>{}, e, tail);
  460|   192k|            root = new_root;
  461|   192k|        } else {
  462|  2.13k|            auto new_root = node_t::make_path_e(e, shift, tail);
  463|  2.13k|            dec_empty_regular(root);
  464|  2.13k|            root = new_root;
  465|  2.13k|        }
  466|   377k|    }
flex-vector-bo.cpp:_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10update_mutIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSG_E0_EEvNS9_5applyIS6_E4type4editEmOSG_:
  573|  32.1k|    {
  574|  32.1k|        auto& elem = get_mut(e, idx);
  575|  32.1k|        elem       = std::forward<FnT>(fn)(std::move(elem));
  576|  32.1k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE7get_mutENS9_5applyIS6_E4type4editEm:
  539|  32.1k|    {
  540|  32.1k|        auto tail_off = tail_offset();
  541|  32.1k|        if (idx >= tail_off) {
  ------------------
  |  Branch (541:13): [True: 11.2k, False: 20.8k]
  ------------------
  542|  11.2k|            ensure_mutable_tail(e, size - tail_off);
  543|  11.2k|            return tail->leaf()[(idx - tail_off) & mask<BL>];
  544|  20.8k|        } else {
  545|  20.8k|            return visit_maybe_relaxed_sub(root,
  546|  20.8k|                                           shift,
  547|  20.8k|                                           tail_off,
  548|  20.8k|                                           get_mut_visitor<node_t>{},
  549|  20.8k|                                           idx,
  550|  20.8k|                                           e,
  551|  20.8k|                                           &root);
  552|  20.8k|        }
  553|  32.1k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE8take_mutENS9_5applyIS6_E4type4editEm:
  606|  32.1k|    {
  607|  32.1k|        auto tail_off = tail_offset();
  608|  32.1k|        if (new_size == 0) {
  ------------------
  |  Branch (608:13): [True: 758, False: 31.4k]
  ------------------
  609|    758|            *this = {};
  610|  31.4k|        } else if (new_size >= size) {
  ------------------
  |  Branch (610:20): [True: 578, False: 30.8k]
  ------------------
  611|    578|            return;
  612|  30.8k|        } else if (new_size > tail_off) {
  ------------------
  |  Branch (612:20): [True: 603, False: 30.2k]
  ------------------
  613|    603|            auto ts    = size - tail_off;
  614|    603|            auto newts = new_size - tail_off;
  615|    603|            if (tail->can_mutate(e)) {
  ------------------
  |  Branch (615:17): [True: 354, False: 249]
  ------------------
  616|    354|                detail::destroy_n(tail->leaf() + newts, ts - newts);
  617|    354|            } else {
  618|    249|                auto new_tail = node_t::copy_leaf_e(e, tail, newts);
  619|    249|                dec_leaf(tail, ts);
  620|    249|                tail = new_tail;
  621|    249|            }
  622|    603|            size = new_size;
  623|    603|            return;
  624|  30.2k|        } else {
  625|  30.2k|            using std::get;
  626|  30.2k|            auto l = new_size - 1;
  627|  30.2k|            auto v = slice_right_mut_visitor<node_t>();
  628|  30.2k|            auto r = visit_maybe_relaxed_sub(root, shift, tail_off, v, l, e);
  629|  30.2k|            auto new_shift = get<0>(r);
  630|  30.2k|            auto new_root  = get<1>(r);
  631|  30.2k|            auto new_tail  = get<3>(r);
  632|  30.2k|            if (new_root) {
  ------------------
  |  Branch (632:17): [True: 23.4k, False: 6.74k]
  ------------------
  633|  23.4k|                root  = new_root;
  634|  23.4k|                shift = new_shift;
  635|  23.4k|            } else {
  636|  6.74k|                root  = empty_root();
  637|  6.74k|                shift = BL;
  638|  6.74k|            }
  639|  30.2k|            dec_leaf(tail, size - tail_off);
  640|  30.2k|            size = new_size;
  641|  30.2k|            tail = new_tail;
  642|  30.2k|            return;
  643|  30.2k|        }
  644|  32.1k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE8drop_mutENS9_5applyIS6_E4type4editEm:
  675|  61.3k|    {
  676|  61.3k|        using std::get;
  677|  61.3k|        auto tail_off = tail_offset();
  678|  61.3k|        if (elems == 0) {
  ------------------
  |  Branch (678:13): [True: 5.97k, False: 55.3k]
  ------------------
  679|  5.97k|            return;
  680|  55.3k|        } else if (elems >= size) {
  ------------------
  |  Branch (680:20): [True: 270, False: 55.0k]
  ------------------
  681|    270|            *this = {};
  682|  55.0k|        } else if (elems == tail_off) {
  ------------------
  |  Branch (682:20): [True: 204, False: 54.8k]
  ------------------
  683|    204|            dec_inner(root, shift, tail_off);
  684|    204|            shift = BL;
  685|    204|            root  = empty_root();
  686|    204|            size -= elems;
  687|    204|            return;
  688|  54.8k|        } else if (elems > tail_off) {
  ------------------
  |  Branch (688:20): [True: 857, False: 53.9k]
  ------------------
  689|    857|            auto v = slice_left_mut_visitor<node_t>();
  690|    857|            tail   = get<1>(make_leaf_sub_pos(tail, size - tail_off)
  691|    857|                              .visit(v, elems - tail_off, e));
  692|    857|            if (tail_off) {
  ------------------
  |  Branch (692:17): [True: 218, False: 639]
  ------------------
  693|    218|                dec_inner(root, shift, tail_off);
  694|    218|                shift = BL;
  695|    218|                root  = empty_root();
  696|    218|            }
  697|    857|            size -= elems;
  698|    857|            return;
  699|  53.9k|        } else {
  700|  53.9k|            auto v = slice_left_mut_visitor<node_t>();
  701|  53.9k|            auto r =
  702|  53.9k|                visit_maybe_relaxed_sub(root, shift, tail_off, v, elems, e);
  703|  53.9k|            shift = get<0>(r);
  704|  53.9k|            root  = get<1>(r);
  705|  53.9k|            size -= elems;
  706|  53.9k|            return;
  707|  53.9k|        }
  708|  61.3k|    }
_ZN5immer6detail4rbts12concat_mut_lERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS9_5applyIS6_E4type4editERKSB_:
  816|   222k|    {
  817|   222k|        assert(&l != &r);
  ------------------
  |  Branch (817:9): [True: 222k, False: 0]
  ------------------
  818|   222k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (818:9): [True: 222k, False: 0]
  ------------------
  819|   222k|        using std::get;
  820|   222k|        if (l.size == 0)
  ------------------
  |  Branch (820:13): [True: 461, False: 221k]
  ------------------
  821|    461|            l = r;
  822|   221k|        else if (r.size == 0)
  ------------------
  |  Branch (822:18): [True: 599, False: 221k]
  ------------------
  823|    599|            return;
  824|   221k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (824:18): [True: 69.9k, False: 151k]
  ------------------
  825|       |            // just concat the tail, similar to push_back
  826|  69.9k|            auto tail_offst = l.tail_offset();
  827|  69.9k|            auto tail_size  = l.size - tail_offst;
  828|  69.9k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (828:17): [True: 12.0k, False: 57.9k]
  ------------------
  829|  12.0k|                l.push_tail_mut(el, tail_offst, l.tail, tail_size);
  830|  12.0k|                l.tail = r.tail->inc();
  831|  12.0k|                l.size += r.size;
  832|  12.0k|                return;
  833|  57.9k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (833:24): [True: 725, False: 57.2k]
  ------------------
  834|    725|                l.ensure_mutable_tail(el, tail_size);
  835|    725|                detail::uninitialized_copy(r.tail->leaf(),
  836|    725|                                           r.tail->leaf() + r.size,
  837|    725|                                           l.tail->leaf() + tail_size);
  838|    725|                l.size += r.size;
  839|    725|                return;
  840|  57.2k|            } else {
  841|  57.2k|                auto remaining = branches<BL> - tail_size;
  842|  57.2k|                l.ensure_mutable_tail(el, tail_size);
  843|  57.2k|                detail::uninitialized_copy(r.tail->leaf(),
  844|  57.2k|                                           r.tail->leaf() + remaining,
  845|  57.2k|                                           l.tail->leaf() + tail_size);
  846|  57.2k|                IMMER_TRY {
  ------------------
  |  |   49|  57.2k|#define IMMER_TRY try
  ------------------
  847|  57.2k|                    auto new_tail =
  848|  57.2k|                        node_t::copy_leaf_e(el, r.tail, remaining, r.size);
  849|  57.2k|                    IMMER_TRY {
  ------------------
  |  |   49|  57.2k|#define IMMER_TRY try
  ------------------
  850|  57.2k|                        l.push_tail_mut(el, tail_offst, l.tail, branches<BL>);
  851|  57.2k|                        l.tail = new_tail;
  852|  57.2k|                        l.size += r.size;
  853|  57.2k|                        return;
  854|  57.2k|                    }
  855|  57.2k|                    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|  57.2k|                }
  860|  57.2k|                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|  57.2k|            }
  865|   151k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (865:20): [True: 441, False: 150k]
  ------------------
  866|    441|            if (supports_transient_concat) {
  ------------------
  |  Branch (866:17): [Folded, False: 441]
  ------------------
  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|    441|            } else {
  886|    441|                auto tail_offst = l.tail_offset();
  887|    441|                auto tail_size  = l.size - tail_offst;
  888|    441|                auto concated   = concat_trees(
  889|    441|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
  890|    441|                l = {l.size + r.size,
  891|    441|                     concated.shift(),
  892|    441|                     concated.node(),
  893|    441|                     r.tail->inc()};
  894|    441|                assert(l.check_tree());
  ------------------
  |  Branch (894:17): [True: 441, False: 0]
  ------------------
  895|    441|                return;
  896|    441|            }
  897|   150k|        } else {
  898|   150k|            if (supports_transient_concat) {
  ------------------
  |  Branch (898:17): [Folded, False: 150k]
  ------------------
  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|   150k|            } else {
  923|   150k|                auto tail_offst = l.tail_offset();
  924|   150k|                auto tail_size  = l.size - tail_offst;
  925|   150k|                auto concated   = concat_trees(l.root,
  926|   150k|                                             l.shift,
  927|   150k|                                             tail_offst,
  928|   150k|                                             l.tail,
  929|   150k|                                             tail_size,
  930|   150k|                                             r.root,
  931|   150k|                                             r.shift,
  932|   150k|                                             r.tail_offset());
  933|   150k|                l               = {l.size + r.size,
  934|   150k|                                   concated.shift(),
  935|   150k|                                   concated.node(),
  936|   150k|                                   r.tail->inc()};
  937|   150k|            }
  938|   150k|        }
  939|   222k|    }
_ZN5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEaSERKSB_:
  163|  2.80k|    {
  164|  2.80k|        auto next{other};
  165|  2.80k|        swap(*this, next);
  166|  2.80k|        return *this;
  167|  2.80k|    }
_ZN5immer6detail4rbts12concat_mut_rERKNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERSB_NS9_5applyIS6_E4type4editE:
  942|  4.06k|    {
  943|  4.06k|        assert(&l != &r);
  ------------------
  |  Branch (943:9): [True: 4.06k, False: 0]
  ------------------
  944|  4.06k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (944:9): [True: 4.06k, False: 0]
  ------------------
  945|  4.06k|        using std::get;
  946|  4.06k|        if (r.size == 0)
  ------------------
  |  Branch (946:13): [True: 248, False: 3.81k]
  ------------------
  947|    248|            r = std::move(l);
  948|  3.81k|        else if (l.size == 0)
  ------------------
  |  Branch (948:18): [True: 200, False: 3.61k]
  ------------------
  949|    200|            return;
  950|  3.61k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (950:18): [True: 1.37k, False: 2.23k]
  ------------------
  951|       |            // just concat the tail, similar to push_back
  952|  1.37k|            auto tail_offst = l.tail_offset();
  953|  1.37k|            auto tail_size  = l.size - tail_offst;
  954|  1.37k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (954:17): [True: 354, False: 1.02k]
  ------------------
  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|    354|                auto res =
  959|    354|                    l.push_tail(l.root, l.shift, tail_offst, l.tail, tail_size);
  960|    354|                l.tail->inc(); // note: leak if mutably concatenated
  961|       |                               // with itself, but this is forbidden
  962|       |                               // by the interface
  963|    354|                r = {l.size + r.size, get<0>(res), get<1>(res), r.tail->inc()};
  964|    354|                return;
  965|  1.02k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (965:24): [True: 485, False: 540]
  ------------------
  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|    485|                auto new_tail =
  974|    485|                    node_t::copy_leaf(l.tail, tail_size, r.tail, r.size);
  975|    485|                r = {l.size + r.size, l.shift, l.root->inc(), new_tail};
  976|    485|                return;
  977|    540|            } else {
  978|       |                // like the immutable version
  979|    540|                auto remaining = branches<BL> - tail_size;
  980|    540|                auto add_tail  = node_t::copy_leaf_e(
  981|    540|                    er, l.tail, tail_size, r.tail, remaining);
  982|    540|                IMMER_TRY {
  ------------------
  |  |   49|    540|#define IMMER_TRY try
  ------------------
  983|    540|                    auto new_tail =
  984|    540|                        node_t::copy_leaf_e(er, r.tail, remaining, r.size);
  985|    540|                    IMMER_TRY {
  ------------------
  |  |   49|    540|#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|    540|                        auto new_root = l.push_tail(l.root,
  990|    540|                                                    l.shift,
  991|    540|                                                    tail_offst,
  992|    540|                                                    add_tail,
  993|    540|                                                    branches<BL>);
  994|    540|                        r             = {l.size + r.size,
  995|    540|                                         get<0>(new_root),
  996|    540|                                         get<1>(new_root),
  997|    540|                                         new_tail};
  998|    540|                        return;
  999|    540|                    }
 1000|    540|                    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|    540|                }
 1005|    540|                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|    540|            }
 1010|  2.23k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (1010:20): [True: 609, False: 1.62k]
  ------------------
 1011|    609|            if (supports_transient_concat) {
  ------------------
  |  Branch (1011:17): [Folded, False: 609]
  ------------------
 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|    609|            } else {
 1030|    609|                auto tail_offst = l.tail_offset();
 1031|    609|                auto tail_size  = l.size - tail_offst;
 1032|    609|                auto concated   = concat_trees(
 1033|    609|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
 1034|    609|                r = {l.size + r.size,
 1035|    609|                     concated.shift(),
 1036|    609|                     concated.node(),
 1037|    609|                     r.tail->inc()};
 1038|    609|                return;
 1039|    609|            }
 1040|  1.62k|        } else {
 1041|  1.62k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1041:17): [Folded, False: 1.62k]
  ------------------
 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|  1.62k|            } else {
 1064|  1.62k|                auto tail_offst = l.tail_offset();
 1065|  1.62k|                auto tail_size  = l.size - tail_offst;
 1066|  1.62k|                auto concated   = concat_trees(l.root,
 1067|  1.62k|                                             l.shift,
 1068|  1.62k|                                             tail_offst,
 1069|  1.62k|                                             l.tail,
 1070|  1.62k|                                             tail_size,
 1071|  1.62k|                                             r.root,
 1072|  1.62k|                                             r.shift,
 1073|  1.62k|                                             r.tail_offset());
 1074|  1.62k|                r               = {l.size + r.size,
 1075|  1.62k|                                   concated.shift(),
 1076|  1.62k|                                   concated.node(),
 1077|  1.62k|                                   r.tail->inc()};
 1078|  1.62k|                return;
 1079|  1.62k|            }
 1080|  1.62k|        }
 1081|  4.06k|    }
_ZN5immer6detail4rbts15concat_mut_lr_lERNS1_7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEENS9_5applyIS6_E4type4editESC_SG_:
 1084|   988k|    {
 1085|   988k|        assert(&l != &r);
  ------------------
  |  Branch (1085:9): [True: 988k, False: 0]
  ------------------
 1086|   988k|        assert(r.size < (std::numeric_limits<size_t>::max() - l.size));
  ------------------
  |  Branch (1086:9): [True: 988k, False: 0]
  ------------------
 1087|   988k|        using std::get;
 1088|   988k|        if (l.size == 0)
  ------------------
  |  Branch (1088:13): [True: 2.09k, False: 986k]
  ------------------
 1089|  2.09k|            l = r;
 1090|   986k|        else if (r.size == 0)
  ------------------
  |  Branch (1090:18): [True: 2.19k, False: 984k]
  ------------------
 1091|  2.19k|            return;
 1092|   984k|        else if (r.tail_offset() == 0) {
  ------------------
  |  Branch (1092:18): [True: 301k, False: 683k]
  ------------------
 1093|       |            // just concat the tail, similar to push_back
 1094|   301k|            auto tail_offst = l.tail_offset();
 1095|   301k|            auto tail_size  = l.size - tail_offst;
 1096|   301k|            if (tail_size == branches<BL>) {
  ------------------
  |  Branch (1096:17): [True: 41.8k, False: 259k]
  ------------------
 1097|  41.8k|                l.push_tail_mut(el, tail_offst, l.tail, tail_size);
 1098|  41.8k|                l.tail = r.tail->inc();
 1099|  41.8k|                l.size += r.size;
 1100|  41.8k|                return;
 1101|   259k|            } else if (tail_size + r.size <= branches<BL>) {
  ------------------
  |  Branch (1101:24): [True: 3.22k, False: 256k]
  ------------------
 1102|  3.22k|                l.ensure_mutable_tail(el, tail_size);
 1103|  3.22k|                if (r.tail->can_mutate(er))
  ------------------
  |  Branch (1103:21): [True: 1.68k, False: 1.54k]
  ------------------
 1104|  1.68k|                    detail::uninitialized_move(r.tail->leaf(),
 1105|  1.68k|                                               r.tail->leaf() + r.size,
 1106|  1.68k|                                               l.tail->leaf() + tail_size);
 1107|  1.54k|                else
 1108|  1.54k|                    detail::uninitialized_copy(r.tail->leaf(),
 1109|  1.54k|                                               r.tail->leaf() + r.size,
 1110|  1.54k|                                               l.tail->leaf() + tail_size);
 1111|  3.22k|                l.size += r.size;
 1112|  3.22k|                return;
 1113|   256k|            } else {
 1114|   256k|                auto remaining = branches<BL> - tail_size;
 1115|   256k|                l.ensure_mutable_tail(el, tail_size);
 1116|   256k|                if (r.tail->can_mutate(er))
  ------------------
  |  Branch (1116:21): [True: 107k, False: 148k]
  ------------------
 1117|   107k|                    detail::uninitialized_move(r.tail->leaf(),
 1118|   107k|                                               r.tail->leaf() + remaining,
 1119|   107k|                                               l.tail->leaf() + tail_size);
 1120|   148k|                else
 1121|   148k|                    detail::uninitialized_copy(r.tail->leaf(),
 1122|   148k|                                               r.tail->leaf() + remaining,
 1123|   148k|                                               l.tail->leaf() + tail_size);
 1124|   256k|                IMMER_TRY {
  ------------------
  |  |   49|   256k|#define IMMER_TRY try
  ------------------
 1125|   256k|                    auto new_tail =
 1126|   256k|                        node_t::copy_leaf_e(el, r.tail, remaining, r.size);
 1127|   256k|                    IMMER_TRY {
  ------------------
  |  |   49|   256k|#define IMMER_TRY try
  ------------------
 1128|   256k|                        l.push_tail_mut(el, tail_offst, l.tail, branches<BL>);
 1129|   256k|                        l.tail = new_tail;
 1130|   256k|                        l.size += r.size;
 1131|   256k|                        return;
 1132|   256k|                    }
 1133|   256k|                    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|   256k|                }
 1138|   256k|                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|   256k|            }
 1143|   683k|        } else if (l.tail_offset() == 0) {
  ------------------
  |  Branch (1143:20): [True: 3.44k, False: 679k]
  ------------------
 1144|  3.44k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1144:17): [Folded, False: 3.44k]
  ------------------
 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|  3.44k|            } else {
 1165|  3.44k|                auto tail_offst = l.tail_offset();
 1166|  3.44k|                auto tail_size  = l.size - tail_offst;
 1167|  3.44k|                auto concated   = concat_trees(
 1168|  3.44k|                    l.tail, tail_size, r.root, r.shift, r.tail_offset());
 1169|  3.44k|                l = {l.size + r.size,
 1170|  3.44k|                     concated.shift(),
 1171|  3.44k|                     concated.node(),
 1172|  3.44k|                     r.tail->inc()};
 1173|  3.44k|                return;
 1174|  3.44k|            }
 1175|   679k|        } else {
 1176|   679k|            if (supports_transient_concat) {
  ------------------
  |  Branch (1176:17): [Folded, False: 679k]
  ------------------
 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|   679k|            } else {
 1200|   679k|                auto tail_offst = l.tail_offset();
 1201|   679k|                auto tail_size  = l.size - tail_offst;
 1202|   679k|                auto concated   = concat_trees(l.root,
 1203|   679k|                                             l.shift,
 1204|   679k|                                             tail_offst,
 1205|   679k|                                             l.tail,
 1206|   679k|                                             tail_size,
 1207|   679k|                                             r.root,
 1208|   679k|                                             r.shift,
 1209|   679k|                                             r.tail_offset());
 1210|   679k|                l               = {l.size + r.size,
 1211|   679k|                                   concated.shift(),
 1212|   679k|                                   concated.node(),
 1213|   679k|                                   r.tail->inc()};
 1214|   679k|                return;
 1215|   679k|            }
 1216|   679k|        }
 1217|   988k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6equalsERKSB_:
  315|  79.6k|    {
  316|  79.6k|        using iter_t = rrbtree_iterator<T, MemoryPolicy, B, BL>;
  317|  79.6k|        if (size != other.size)
  ------------------
  |  Branch (317:13): [True: 56.3k, False: 23.2k]
  ------------------
  318|  56.3k|            return false;
  319|  23.2k|        if (size == 0)
  ------------------
  |  Branch (319:13): [True: 197, False: 23.1k]
  ------------------
  320|    197|            return true;
  321|  23.1k|        auto tail_off       = tail_offset();
  322|  23.1k|        auto tail_off_other = other.tail_offset();
  323|       |        // compare trees
  324|  23.1k|        if (tail_off > 0 && tail_off_other > 0) {
  ------------------
  |  Branch (324:13): [True: 22.1k, False: 948]
  |  Branch (324:29): [True: 21.9k, False: 196]
  ------------------
  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|  21.9k|            if (other.shift >= shift) {
  ------------------
  |  Branch (328:17): [True: 21.2k, False: 676]
  ------------------
  329|  21.2k|                if (!visit_maybe_relaxed_sub(other.root,
  ------------------
  |  Branch (329:21): [True: 11.2k, False: 10.0k]
  ------------------
  330|  21.2k|                                             other.shift,
  331|  21.2k|                                             tail_off_other,
  332|  21.2k|                                             equals_visitor::rrb{},
  333|  21.2k|                                             iter_t{other},
  334|  21.2k|                                             root,
  335|  21.2k|                                             shift,
  336|  21.2k|                                             tail_off))
  337|  11.2k|                    return false;
  338|  21.2k|            } else {
  339|    676|                if (!visit_maybe_relaxed_sub(root,
  ------------------
  |  Branch (339:21): [True: 268, False: 408]
  ------------------
  340|    676|                                             shift,
  341|    676|                                             tail_off,
  342|    676|                                             equals_visitor::rrb{},
  343|    676|                                             iter_t{*this},
  344|    676|                                             other.root,
  345|    676|                                             other.shift,
  346|    676|                                             tail_off_other))
  347|    268|                    return false;
  348|    676|            }
  349|  21.9k|        }
  350|  11.6k|        return tail_off == tail_off_other
  ------------------
  |  Branch (350:16): [True: 6.91k, False: 4.70k]
  ------------------
  351|  11.6k|                   ? make_leaf_sub_pos(tail, tail_size())
  352|  6.91k|                         .visit(equals_visitor{}, other.tail)
  353|  11.6k|               : tail_off > tail_off_other
  ------------------
  |  Branch (353:18): [True: 2.09k, False: 2.61k]
  ------------------
  354|  4.70k|                   ? std::equal(tail->leaf(),
  355|  2.09k|                                tail->leaf() + (size - tail_off),
  356|  2.09k|                                other.tail->leaf() +
  357|  2.09k|                                    (tail_off - tail_off_other))
  358|       |                   /* otherwise */
  359|  4.70k|                   : std::equal(tail->leaf(),
  360|  2.61k|                                tail->leaf() + (size - tail_off),
  361|  2.61k|                                iter_t{other} + tail_off);
  362|  23.1k|    }
_ZNK5immer6detail4rbts7rrbtreeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE10region_forEm:
  524|  1.21M|    {
  525|  1.21M|        using std::get;
  526|  1.21M|        auto tail_off = tail_offset();
  527|  1.21M|        if (idx >= tail_off) {
  ------------------
  |  Branch (527:13): [True: 4.44k, False: 1.20M]
  ------------------
  528|  4.44k|            return std::make_tuple(tail->leaf(), tail_off, size);
  529|  1.20M|        } else {
  530|  1.20M|            auto subs = visit_maybe_relaxed_sub(
  531|  1.20M|                root, shift, tail_off, region_for_visitor<T>(), idx);
  532|  1.20M|            auto first = idx - get<1>(subs);
  533|  1.20M|            auto end   = first + get<2>(subs);
  534|  1.20M|            return std::make_tuple(get<0>(subs), first, end);
  535|  1.20M|        }
  536|  1.21M|    }

_ZNK5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11dereferenceEv:
   90|  9.08M|    {
   91|  9.08M|        using std::get;
   92|  9.08M|        if (i_ < get<1>(curr_) || i_ >= get<2>(curr_))
  ------------------
  |  Branch (92:13): [True: 84.9k, False: 8.99M]
  |  Branch (92:35): [True: 1.12M, False: 7.87M]
  ------------------
   93|  1.21M|            curr_ = v_->region_for(i_);
   94|  9.08M|        return get<0>(curr_)[i_ - get<1>(curr_)];
   95|  9.08M|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE7advanceEl:
   74|   174k|    {
   75|   174k|        using std::get;
   76|   174k|        assert(n <= 0 || i_ + static_cast<size_t>(n) <= v_->size);
  ------------------
  |  Branch (76:9): [True: 331, False: 173k]
  |  Branch (76:9): [True: 173k, False: 0]
  |  Branch (76:9): [True: 174k, False: 0]
  ------------------
   77|   174k|        assert(n >= 0 || static_cast<size_t>(-n) <= i_);
  ------------------
  |  Branch (77:9): [True: 174k, False: 0]
  |  Branch (77:9): [True: 0, False: 0]
  |  Branch (77:9): [True: 174k, False: 0]
  ------------------
   78|   174k|        i_ += n;
   79|   174k|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9incrementEv:
   60|  7.93M|    {
   61|  7.93M|        using std::get;
   62|  7.93M|        assert(i_ < v_->size);
  ------------------
  |  Branch (62:9): [True: 7.93M, False: 0]
  ------------------
   63|  7.93M|        ++i_;
   64|  7.93M|    }
_ZN5immer6detail4rbts16rrbtree_iteratorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2ERKNS1_7rrbtreeIiSA_Lj3ELj3EEE:
   39|  24.5k|        : v_{&v}
   40|  24.5k|        , i_{0}
   41|  24.5k|        , curr_{nullptr, ~size_t{}, ~size_t{}}
   42|  24.5k|    {
   43|  24.5k|    }

_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERmEEEDcDpOT_:
   31|  23.9k|    {
   32|  23.9k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  23.9k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERmEEEDcDpOT_:
   31|  93.6k|    {
   32|  93.6k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  93.6k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EEEE13visit_regularIJRNS1_15regular_sub_posISD_EERmEEEDcDpOT_:
   37|  1.53k|    {
   38|  1.53k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.53k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb0EEEE13visit_regularIJRNS1_8full_posISD_EEmEEEDcDpOT_:
   37|  7.25k|    {
   38|  7.25k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  7.25k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_15regular_sub_posISD_EERmEEEDcDpOT_:
   37|  8.58k|    {
   38|  8.58k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  8.58k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_8full_posISD_EEmEEEDcDpOT_:
   37|    744|    {
   38|    744|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    744|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18slice_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEELb1EEEE13visit_regularIJRNS1_15regular_sub_posISD_EEmEEEDcDpOT_:
   37|  1.85k|    {
   38|  1.85k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.85k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_25singleton_regular_sub_posISD_EENS1_14empty_leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   37|  7.25k|    {
   38|  7.25k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  7.25k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_25singleton_regular_sub_posISD_EENS1_14empty_leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  7.25k|    {
   44|  7.25k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  7.25k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   31|  5.00k|    {
   32|  5.00k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  5.00k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   43|  5.00k|    {
   44|  5.00k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  5.00k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   49|  8.34M|    {
   50|  8.34M|        return Deriv::visit_node(std::forward<Args>(args)...);
   51|  8.34M|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   31|   122M|    {
   32|   122M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   122M|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|   122M|    {
   44|   122M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|   122M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   31|   122M|    {
   32|   122M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   122M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   31|  17.2k|    {
   32|  17.2k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  17.2k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|    300|    {
   38|    300|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    300|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|    906|    {
   38|    906|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    906|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   49|  6.31M|    {
   50|  6.31M|        return Deriv::visit_node(std::forward<Args>(args)...);
   51|  6.31M|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   37|   611k|    {
   38|   611k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   611k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|   611k|    {
   44|   611k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|   611k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   37|   611k|    {
   38|   611k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   611k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   37|  4.46M|    {
   38|  4.46M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.46M|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERNS1_21concat_rebalance_planILj3ELj3EEEEEEDcDpOT_:
   43|  4.46M|    {
   44|  4.46M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  4.46M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_21concat_merger_visitorEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_13concat_mergerISG_EEEEEDcDpOT_:
   37|  4.46M|    {
   38|  4.46M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.46M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   37|  2.25k|    {
   38|  2.25k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  2.25k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EERNS1_25singleton_regular_sub_posISD_EERNS1_14empty_leaf_posISD_EEEEEDcDpOT_:
   43|  2.25k|    {
   44|  2.25k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  2.25k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   31|  1.14M|    {
   32|  1.14M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.14M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  1.14M|    {
   44|  1.14M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  1.14M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  1.13M|    {
   32|  1.13M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.13M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  1.13M|    {
   44|  1.13M|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  1.13M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   31|  3.57M|    {
   32|  3.57M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  3.57M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_11relaxed_posISD_EEEEEDcDpOT_:
   37|  4.87k|    {
   38|  4.87k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.87k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_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_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|   421k|    {
   38|   421k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   421k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   37|  1.28k|    {
   38|  1.28k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.28k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  20.4k|    {
   38|  20.4k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  20.4k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_8full_posISD_EEEEEDcDpOT_:
   37|  5.27k|    {
   38|  5.27k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  5.27k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   37|  14.4k|    {
   38|  14.4k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  14.4k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EERNS1_11relaxed_posISD_EEEEEDcDpOT_:
   37|  1.57M|    {
   38|  1.57M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.57M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  8.07M|    {
   32|  8.07M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  8.07M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|    768|    {
   38|    768|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    768|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_15regular_sub_posISD_EEEEEDcDpOT_:
   31|  10.6k|    {
   32|  10.6k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  10.6k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_20concat_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_8full_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  1.50k|    {
   38|  1.50k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  1.50k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_8full_posISD_EEEEEDcDpOT_:
   31|    252|    {
   32|    252|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    252|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EERNS1_15regular_sub_posISD_EEEEEDcDpOT_:
   31|    465|    {
   32|    465|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    465|    }
_ZN5immer6detail4rbts12visitor_baseINS1_19concat_both_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EESJ_EEEDcDpOT_:
   31|  8.03M|    {
   32|  8.03M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  8.03M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  7.52k|    {
   38|  7.52k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  7.52k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EERNS1_11relaxed_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  7.52k|    {
   44|  7.52k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  7.52k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   37|  16.5k|    {
   38|  16.5k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  16.5k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_25concat_trees_left_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EENS1_8leaf_posISD_EERPSD_RjRmEEEDcDpOT_:
   43|  16.5k|    {
   44|  16.5k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  16.5k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_relaxedIJRNS1_11relaxed_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   31|  6.79k|    {
   32|  6.79k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  6.79k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_11relaxed_posISD_EERNS1_15regular_sub_posISD_EERNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  6.79k|    {
   44|  6.79k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  6.79k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE13visit_regularIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   37|  9.72k|    {
   38|  9.72k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  9.72k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_26concat_trees_right_visitorINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEEE11visit_innerIJRNS1_15regular_sub_posISD_EESJ_RNS1_8leaf_posISD_EEEEEDcDpOT_:
   43|  9.72k|    {
   44|  9.72k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  9.72k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   31|  13.4k|    {
   32|  13.4k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  13.4k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   43|  13.4k|    {
   44|  13.4k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  13.4k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERjSJ_RNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|  25.4k|    {
   32|  25.4k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  25.4k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERjRNS1_15regular_sub_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|  2.11k|    {
   32|  2.11k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  2.11k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERjRNS1_8full_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   31|    447|    {
   32|    447|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|    447|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERjRNS1_8full_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|    844|    {
   38|    844|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    844|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   31|  4.39M|    {
   32|  4.39M|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  4.39M|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|   212k|    {
   38|   212k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   212k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|   220k|    {
   38|   220k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|   220k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_18region_for_visitorIiEEE13visit_regularIJRNS1_11regular_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERmEEEDcDpOT_:
   37|  26.0k|    {
   38|  26.0k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  26.0k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  15.2k|    {
   38|  15.2k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  15.2k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERjSJ_RNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|    869|    {
   38|    869|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|    869|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  12.9k|    {
   38|  12.9k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  12.9k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   37|  3.36k|    {
   38|  3.36k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  3.36k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERjRNS1_11relaxed_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|  4.95k|    {
   38|  4.95k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  4.95k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor10this_aux_tEE13visit_regularIJRNS1_8full_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERjRNS1_11relaxed_posISH_EERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERmEEEDcDpOT_:
   37|  3.81k|    {
   38|  3.81k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  3.81k|    }
_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_policyELb1ELb1EEELj3ELj3EEEEERZNS1_14equals_visitor13equal_chunk_pINS1_16rrbtree_iteratorIiSF_Lj3ELj3EEEEEDaOT_EUlSN_T0_E_EEEDcDpOT_:
   31|   142k|    {
   32|   142k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|   142k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_relaxedIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERPSH_RjRmEEEDcDpOT_:
   31|  1.26k|    {
   32|  1.26k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   33|  1.26k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_11relaxed_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEERNS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERPSH_RjRmEEEDcDpOT_:
   43|  1.26k|    {
   44|  1.26k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  1.26k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE13visit_regularIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   37|  8.55k|    {
   38|  8.55k|        return Deriv::visit_inner(std::forward<Args>(args)...);
   39|  8.55k|    }
_ZN5immer6detail4rbts12visitor_baseINS1_14equals_visitor3rrbEE11visit_innerIJRNS1_15regular_sub_posINS1_4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEEENS1_16rrbtree_iteratorIiSG_Lj3ELj3EEERKPSH_RKjRmEEEDcDpOT_:
   43|  8.55k|    {
   44|  8.55k|        return Deriv::visit_node(std::forward<Args>(args)...);
   45|  8.55k|    }

_ZN5immer6detail15auto_const_castINS_22unsafe_refcount_policyEEERT_RKS3_:
  143|   514M|{
  144|   514M|    return const_cast<T&>(x);
  145|   514M|}
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE7inner_tEPSC_Lb0EE15get_storage_ptrEv:
  113|   318M|    {
  114|   318M|        check_base();
  115|   318M|        auto* base = static_cast<Derived*>(this);
  116|   318M|        return reinterpret_cast<T*>(base + 1);
  117|   318M|    }
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE7inner_tEPSC_Lb0EE10check_baseEv:
  134|   318M|    {
  135|   318M|        static_assert(std::is_standard_layout<Derived>::value &&
  136|   318M|                          !std::is_empty<Derived>::value,
  137|   318M|                      "Please add 'true' if the derived class is emtpy");
  138|   318M|    }
_ZN5immer6detail9static_ifILb0EZNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14delete_inner_rEPSC_jEUlT_E_EENSt3__19enable_ifIXntT_EvE4typeEOT0_:
  334|  37.2M|{
  335|  37.2M|}
_ZN5immer6detail9destroy_nIPijEENSt3__19enable_ifIX20can_trivially_detroyIT_EES5_E4typeES5_T0_:
  188|  1.61M|{
  189|  1.61M|    return first + n;
  190|  1.61M|}
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6leaf_tEiLb1EE15get_storage_ptrEv:
   75|  11.2M|    {
   76|  11.2M|        check_base();
   77|  11.2M|        return reinterpret_cast<T*>(this);
   78|  11.2M|    }
_ZN5immer6detail21with_trailing_storageINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6leaf_tEiLb1EE10check_baseEv:
   94|  11.2M|    {
   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|  11.2M|        static_assert(std::is_standard_layout<Derived>::value,
  100|  11.2M|                      "Please remove 'true' if the derived class is non emtpy");
  101|  11.2M|    }
_ZN5immer6detail18uninitialized_copyIPiS2_S2_EENSt3__19enable_ifIX18can_trivially_copyIT_T1_EES6_E4typeES5_T0_S6_:
  236|  2.16M|{
  237|  2.16M|    return std::copy(first, last, out);
  238|  2.16M|}
_ZN5immer6detail9static_ifILb1EPNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEZNSC_15make_inner_sr_nEjPNS0_3csl6memberINSC_14relaxed_data_tEvE4typeEEUlT_E_ZNSC_15make_inner_sr_nEjSJ_EUlSK_E0_EENSt3__19enable_ifIXT_ET0_E4typeEOT1_OT2_:
  339|   190k|{
  340|   190k|    return std::forward<F1>(f1)(empty_t{});
  341|   190k|}
_ZN5immer6detail4ipowImEET_S2_j:
  323|  53.4M|{
  324|  53.4M|    return pow == 0 ? 1 : num * ipow(num, pow - 1);
  ------------------
  |  Branch (324:12): [True: 2.54M, False: 50.8M]
  ------------------
  325|  53.4M|}
_ZN5immer6detail9static_ifILb1EPNS0_3csl6memberINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14relaxed_data_tEvE4typeEZNSE_24ensure_mutable_relaxed_nENSC_5applyIS9_E4type4editEjEUlT_E_ZNSE_24ensure_mutable_relaxed_nESM_jEUlSN_E0_EENSt3__19enable_ifIXT_ET0_E4typeEOT1_OT2_:
  339|   223k|{
  340|   223k|    return std::forward<F1>(f1)(empty_t{});
  341|   223k|}
_ZN5immer6detail9static_ifILb0EZNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14make_inner_r_eENSA_5applyIS7_E4type4editEEUlT_E_EENSt3__19enable_ifIXntT_EvE4typeEOT0_:
  334|   148k|{
  335|   148k|}
_ZN5immer6detail9static_ifILb1EPNS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEZNSC_15make_inner_sr_eENSA_5applyIS7_E4type4editEPNS0_3csl6memberINSC_14relaxed_data_tEvE4typeEEUlT_E_ZNSC_15make_inner_sr_eESH_SN_EUlSO_E0_EENSt3__19enable_ifIXT_ET0_E4typeEOT1_OT2_:
  339|  27.6k|{
  340|  27.6k|    return std::forward<F1>(f1)(empty_t{});
  341|  27.6k|}
_ZN5immer6detail9destroy_nIPimEENSt3__19enable_ifIX20can_trivially_detroyIT_EES5_E4typeES5_T0_:
  188|    354|{
  189|    354|    return first + n;
  190|    354|}
_ZN5immer6detail9static_ifILb1EPNS0_3csl6memberINS0_4rbts4nodeIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14relaxed_data_tEvE4typeEZNSE_22ensure_mutable_relaxedENSC_5applyIS9_E4type4editEEUlT_E_ZNSE_22ensure_mutable_relaxedESM_EUlSN_E0_EENSt3__19enable_ifIXT_ET0_E4typeEOT1_OT2_:
  339|   178k|{
  340|   178k|    return std::forward<F1>(f1)(empty_t{});
  341|   178k|}
_ZN5immer6detail18uninitialized_moveIPiS2_EENSt3__19enable_ifIX18can_trivially_copyIT_T0_EES6_E4typeES5_S5_S6_:
  210|   109k|{
  211|   109k|    return std::copy(first, last, out);
  212|   109k|}
_ZN5immer6detail8as_constIiEEPKT_PS2_:
   29|  1.13M|{
   30|  1.13M|    return x;
   31|  1.13M|}
_ZN5immer6detail4makeINS_15debug_size_heapINS_8cpp_heapEEENS_3boxIiNS_13memory_policyINS_21free_list_heap_policyIS3_Lm1024EEENS_15refcount_policyENS_15spinlock_policyENS_20no_transience_policyELb0ELb1EEEE6holderEJiEEEPT0_DpOT1_:
  260|  15.5k|{
  261|  15.5k|    auto ptr = Heap::allocate(sizeof(T));
  262|  15.5k|    IMMER_TRY {
  ------------------
  |  |   49|  15.5k|#define IMMER_TRY try
  ------------------
  263|  15.5k|        return new (ptr) T(std::forward<Args>(args)...);
  264|  15.5k|    }
  265|  15.5k|    IMMER_CATCH (...) {
  266|      0|        Heap::deallocate(sizeof(T), ptr);
  267|      0|        IMMER_RETHROW;
  ------------------
  |  |   52|      0|#define IMMER_RETHROW throw
  ------------------
  268|      0|    }
  269|  15.5k|}

_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2Ev:
   96|  86.1k|    flex_vector() = default;
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9push_backEi:
  246|   352k|    {
  247|   352k|        return impl_.push_back(std::move(value));
  248|   352k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEC2ENS_6detail4rbts7rrbtreeIiS8_Lj3ELj3EEE:
  536|  1.22M|        : impl_(std::move(impl))
  537|  1.22M|    {
  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|  1.22M|    }
_ZNK5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4sizeEv:
  181|  4.22M|    IMMER_NODISCARD size_type size() const { return impl_.size; }
flex-vector-bo.cpp:_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E_EES9_mOSE_:
  323|   151k|    {
  324|   151k|        return impl_.update(index, std::forward<FnT>(fn));
  325|   151k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4takeEm:
  350|  24.3k|    {
  351|  24.3k|        return impl_.take(elems);
  352|  24.3k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4dropEm:
  376|  36.7k|    {
  377|  36.7k|        return impl_.drop(elems);
  378|  36.7k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE8max_sizeEv:
   90|  1.88M|    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_policyELb1ELb1EEELj3ELj3EEESB_:
  403|   655k|    {
  404|   655k|        return l.impl_.concat(r.impl_);
  405|   655k|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9push_backEi:
  251|  40.2k|    {
  252|  40.2k|        return push_back_move(move_t{}, std::move(value));
  253|  40.2k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE14push_back_moveENSt3__117integral_constantIbLb1EEEi:
  547|  40.2k|    {
  548|  40.2k|        impl_.push_back_mut({}, std::move(value));
  549|  40.2k|        return std::move(*this);
  550|  40.2k|    }
flex-vector-bo.cpp:_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6updateIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E0_EEDcmOSE_:
  329|  32.1k|    {
  330|  32.1k|        return update_move(move_t{}, index, std::forward<FnT>(fn));
  331|  32.1k|    }
flex-vector-bo.cpp:_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11update_moveIZZ22LLVMFuzzerTestOneInputENK3$_6clI12fuzzer_inputEEDaRT_EUlSE_E0_EEOS9_NSt3__117integral_constantIbLb1EEEmOSE_:
  568|  32.1k|    {
  569|  32.1k|        impl_.update_mut({}, index, std::forward<Fn>(fn));
  570|  32.1k|        return std::move(*this);
  571|  32.1k|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4takeEm:
  355|  32.1k|    {
  356|  32.1k|        return take_move(move_t{}, elems);
  357|  32.1k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9take_moveENSt3__117integral_constantIbLb1EEEm:
  579|  32.1k|    {
  580|  32.1k|        impl_.take_mut({}, elems);
  581|  32.1k|        return std::move(*this);
  582|  32.1k|    }
_ZNO5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE4dropEm:
  381|  61.3k|    {
  382|  61.3k|        return drop_move(move_t{}, elems);
  383|  61.3k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE9drop_moveENSt3__117integral_constantIbLb1EEEm:
  589|  61.3k|    {
  590|  61.3k|        impl_.drop_mut({}, elems);
  591|  61.3k|        return std::move(*this);
  592|  61.3k|    }
_ZN5immerplEONS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEERKS9_:
  409|   222k|    {
  410|   222k|        return concat_move(move_t{}, std::move(l), r);
  411|   222k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEEOS9_RKS9_:
  600|   222k|    {
  601|   222k|        concat_mut_l(l.impl_, {}, r.impl_);
  602|   222k|        return std::move(l);
  603|   222k|    }
_ZN5immerplERKNS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEEOS9_:
  415|  4.06k|    {
  416|  4.06k|        return concat_move(move_t{}, l, std::move(r));
  417|  4.06k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEERKS9_OS9_:
  606|  4.06k|    {
  607|  4.06k|        concat_mut_r(l.impl_, r.impl_, {});
  608|  4.06k|        return std::move(r);
  609|  4.06k|    }
_ZN5immerplEONS_11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEESA_:
  421|   988k|    {
  422|   988k|        return concat_move(move_t{}, std::move(l), std::move(r));
  423|   988k|    }
_ZN5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE11concat_moveENSt3__117integral_constantIbLb1EEEOS9_SD_:
  612|   988k|    {
  613|   988k|        concat_mut_lr_l(l.impl_, {}, r.impl_, {});
  614|   988k|        return std::move(l);
  615|   988k|    }
_ZNK5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EEeqERKS9_:
  222|  79.6k|    {
  223|  79.6k|        return impl_.equals(other.impl_);
  224|  79.6k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE5eraseEm:
  480|  6.84k|    {
  481|  6.84k|        return take(pos) + drop(pos + 1);
  482|  6.84k|    }
_ZNKR5immer11flex_vectorIiNS_13memory_policyINS_11heap_policyINS_8cpp_heapEEENS_22unsafe_refcount_policyENS_14no_lock_policyENS_20no_transience_policyELb1ELb1EEELj3ELj3EE6insertEmi:
  442|  15.5k|    {
  443|  15.5k|        return take(pos).push_back(std::move(value)) + drop(pos);
  444|  15.5k|    }

_ZN5immer8cpp_heap10deallocateEmPv:
   36|  40.2M|    static void deallocate(std::size_t, void* data) { ::operator delete(data); }
_ZN5immer8cpp_heap8allocateIJEEEPvmDpT_:
   27|  40.2M|    {
   28|  40.2M|        return ::operator new(size);
   29|  40.2M|    }

_ZN5immer15debug_size_heapINS_8cpp_heapEE8allocateIJEEEPvmDpT_:
   49|  15.5k|    {
   50|  15.5k|        auto p = (std::size_t*) Base::allocate(size + extra_size, tags...);
   51|  15.5k|        new (p) std::size_t{size};
   52|  15.5k|        return ((char*) p) + extra_size;
   53|  15.5k|    }
_ZN5immer15debug_size_heapINS_8cpp_heapEE10deallocateIJEEEvmPvDpT_:
   57|  15.5k|    {
   58|  15.5k|        auto p = (std::size_t*) (((char*) data) - extra_size);
   59|  15.5k|        assert(*p == size);
  ------------------
  |  Branch (59:9): [True: 15.5k, False: 0]
  ------------------
   60|  15.5k|        Base::deallocate(size + extra_size, p, tags...);
   61|  15.5k|    }

_ZN5immer15refcount_policyC2Ev:
   28|  15.5k|        : refcount{1} {};
_ZN5immer15refcount_policy3decEv:
   36|  15.5k|    bool dec() { return 1 == refcount.fetch_sub(1, std::memory_order_acq_rel); }

_ZN5immer22unsafe_refcount_policyC2Ev:
   27|  40.2M|        : refcount{1} {};
_ZN5immer22unsafe_refcount_policy3incEv:
   33|   235M|    void inc() { ++refcount; }
_ZN5immer22unsafe_refcount_policy3decEv:
   34|   275M|    bool dec() { return --refcount == 0; }
_ZN5immer22unsafe_refcount_policy6uniqueEv:
   35|  2.79M|    bool unique() { return refcount == 1; }

_ZNK5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5ownee5ownedEv:
   36|  40.2M|                bool owned() const { return false; }
_ZNK5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5ownee10can_mutateENS6_4editE:
   35|   290k|                bool can_mutate(edit) const { return false; }
_ZN5immer20no_transience_policy5applyINS_11heap_policyINS_8cpp_heapEEEE4type5owneeaSENS6_4editE:
   34|   657k|                ownee& operator=(edit) { return *this; };

