/src/php-src/ext/opcache/jit/ir/ir_dump.c

Source
/*
 * IR - Lightweight JIT Compilation Framework
 * (debug dumps)
 * This file is part of the IR Project distributed under the MIT-style LICENSE.
 * Authors: Dmitry Stogov <dmitry@php.net>
 */

#include "ir.h"
#include "ir_private.h"

#if defined(IR_TARGET_X86) || defined(IR_TARGET_X64)
# include "ir_x86.h"
#elif defined(IR_TARGET_AARCH64)
# include "ir_aarch64.h"
#else
# error "Unknown IR target"
#endif

static void ir_dump_type_name(ir_type type, FILE *f)
{
  if (IR_IS_TYPE_VECTOR(type)) {
    fprintf(f, "<%s*%d>",
      ir_type_name[IR_VECTOR_BASE_TYPE(type)], IR_VECTOR_LENGTH(type));
  } else {
    fprintf(f, "%s", ir_type_name[type]);
  }
}

void ir_dump(const ir_ctx *ctx, FILE *f)
{
  ir_ref i, j, n, ref, *p;
  ir_insn *insn;
  uint32_t flags;

  for (i = 1 - ctx->consts_count, insn = ctx->ir_base + i; i < IR_UNUSED; i++, insn++) {
    fprintf(f, "%05d %s ", i, ir_op_name[insn->op]);
    ir_dump_type_name(insn->type, f);
    fprintf(f, "(");
    ir_print_const(ctx, insn, f, true);
    fprintf(f, ")\n");
    if (insn->op == IR_LONG_CONST) {
      i += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
      insn += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
    }
  }

  for (i = IR_UNUSED + 1, insn = ctx->ir_base + i; i < ctx->insns_count; i++, insn++) {
    flags = ir_op_flags[insn->op];
    fprintf(f, "%05d %s", i, ir_op_name[insn->op]);
    if ((flags & IR_OP_FLAG_DATA) || ((flags & IR_OP_FLAG_MEM) && insn->type != IR_VOID)) {
      fprintf(f, " ");
      ir_dump_type_name(insn->type, f);
    }
    n = ir_operands_count(ctx, insn);
    for (j = 1, p = insn->ops + 1; j <= 3; j++, p++) {
      ref = *p;
      if (ref) {
        fprintf(f, " %05d", ref);
      }
    }
    if (n > 3) {
      n -= 3;
      do {
        i++;
        insn++;
        fprintf(f, "\n%05d", i);
        for (j = 0; j < 4; j++, p++) {
          ref = *p;
          if (ref) {
            fprintf(f, " %05d", ref);
          }
        }
        n -= 4;
      } while (n > 0);
    }
    fprintf(f, "\n");
  }
}

void ir_dump_dot(const ir_ctx *ctx, const char *name, const char *comments, FILE *f)
{
  int DATA_WEIGHT    = 0;
  int CONTROL_WEIGHT = 5;
  int REF_WEIGHT     = 4;
  ir_ref i, j, n, ref, *p;
  ir_insn *insn;
  uint32_t flags;

  fprintf(f, "digraph %s {\n", name);
  fprintf(f, "\tlabelloc=t;\n");
  fprintf(f, "\tlabel=\"");
  ir_print_func_proto(ctx, name, 0, f);
  if (comments) {
    fprintf(f, " # %s", comments);
  }
  fprintf(f, "\"\n");
  fprintf(f, "\trankdir=TB;\n");
  for (i = 1 - ctx->consts_count, insn = ctx->ir_base + i; i < IR_UNUSED; i++, insn++) {
    fprintf(f, "\tc%d [label=\"C%d: CONST ", -i, -i);
    ir_dump_type_name(insn->type, f);
    fprintf(f, "(");
    /* FIXME(tony): We still cannot handle strings with escaped double quote inside */
    ir_print_const(ctx, insn, f, false);
    fprintf(f, ")\",style=filled,fillcolor=yellow];\n");
    if (insn->op == IR_LONG_CONST) {
      i += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
      insn += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
    }
  }

  for (i = IR_UNUSED + 1, insn = ctx->ir_base + i; i < ctx->insns_count;) {
    flags = ir_op_flags[insn->op];
    if (flags & IR_OP_FLAG_CONTROL) {
      if (insn->op == IR_START) {
        fprintf(f, "\t{rank=min; n%d [label=\"%d: %s\",shape=box,style=\"rounded,filled\",fillcolor=red];}\n", i, i, ir_op_name[insn->op]);
      } else if (insn->op == IR_ENTRY) {
        fprintf(f, "\t{n%d [label=\"%d: %s\",shape=box,style=\"rounded,filled\",fillcolor=red];}\n", i, i, ir_op_name[insn->op]);
      } else if (flags & IR_OP_FLAG_TERMINATOR) {
        fprintf(f, "\t{rank=max; n%d [label=\"%d: %s\",shape=box,style=\"rounded,filled\",fillcolor=red];}\n", i, i, ir_op_name[insn->op]);
      } else if (flags & IR_OP_FLAG_MEM) {
        fprintf(f, "\tn%d [label=\"%d: %s\",shape=box,style=filled,fillcolor=pink];\n", i, i, ir_op_name[insn->op]);
      } else {
        fprintf(f, "\tn%d [label=\"%d: %s\",shape=box,style=filled,fillcolor=lightcoral];\n", i, i, ir_op_name[insn->op]);
      }
    } else if (flags & IR_OP_FLAG_DATA) {
      if (IR_OPND_KIND(flags, 1) == IR_OPND_DATA) {
        /* not a leaf */
        fprintf(f, "\tn%d [label=\"%d: %s\"", i, i, ir_op_name[insn->op]);
        fprintf(f, ",shape=diamond,style=filled,fillcolor=deepskyblue];\n");
      } else {
        fprintf(f, "\tn%d [label=\"%d: %s ", i, i, ir_op_name[insn->op]);
        ir_dump_type_name(insn->type, f);
        if (insn->op == IR_PARAM) {
          fprintf(f, " \\\"%s\\\"\",style=filled,fillcolor=lightblue];\n",
            ir_get_str(ctx, insn->op2));
        } else if (insn->op == IR_VAR) {
          fprintf(f, " \\\"%s\\\"\"];\n", ir_get_str(ctx, insn->op2));
        } else {
          fprintf(f, "\",style=filled,fillcolor=deepskyblue];\n");
        }
      }
    }
    n = ir_operands_count(ctx, insn);
    for (j = 1, p = insn->ops + 1; j <= n; j++, p++) {
      ref = *p;
      if (ref) {
        switch (IR_OPND_KIND(flags, j)) {
          case IR_OPND_DATA:
            if (IR_IS_CONST_REF(ref)) {
              fprintf(f, "\tc%d -> n%d [color=blue,weight=%d];\n", -ref, i, DATA_WEIGHT);
            } else if (insn->op == IR_PHI
                && ctx->ir_base[insn->op1].op == IR_LOOP_BEGIN
                && ctx->ir_base[ir_insn_op(&ctx->ir_base[insn->op1], j - 1)].op == IR_LOOP_END) {
              fprintf(f, "\tn%d -> n%d [color=blue,dir=back];\n", i, ref);
            } else {
              fprintf(f, "\tn%d -> n%d [color=blue,weight=%d];\n", ref, i, DATA_WEIGHT);
            }
            break;
          case IR_OPND_CONTROL:
            if (insn->op == IR_LOOP_BEGIN && ctx->ir_base[ref].op == IR_LOOP_END) {
              fprintf(f, "\tn%d -> n%d [style=bold,color=red,dir=back];\n", i, ref);
            } else if (insn->op == IR_ENTRY) {
              fprintf(f, "\tn%d -> n%d [style=bold,color=red,style=dashed,weight=%d];\n", ref, i, CONTROL_WEIGHT);
            } else {
              fprintf(f, "\tn%d -> n%d [style=bold,color=red,weight=%d];\n", ref, i, CONTROL_WEIGHT);
            }
            break;
          case IR_OPND_CONTROL_DEP:
          case IR_OPND_CONTROL_REF:
          case IR_OPND_CONTROL_GUARD:
            fprintf(f, "\tn%d -> n%d [style=dashed,dir=back,weight=%d];\n", ref, i, REF_WEIGHT);
            break;
          case IR_OPND_LABEL_REF:
            if (ref) {
              fprintf(f, "\tc%d -> n%d [color=blue,weight=%d];\n", -ref, i, REF_WEIGHT);
            }
            break;
        }
      }
    }
    n = ir_insn_inputs_to_len(n);
    i += n;
    insn += n;
  }
  fprintf(f, "}\n");
}

void ir_dump_use_lists(const ir_ctx *ctx, FILE *f)
{
  ir_ref i, j, n, *p;
  ir_use_list *list;

  if (ctx->use_lists) {
    fprintf(f, "{ # Use Lists\n");
    for (i = 1, list = &ctx->use_lists[1]; i < ctx->insns_count; i++, list++) {
      n = list->count;
      if (n > 0) {
        p = &ctx->use_edges[list->refs];
        fprintf(f, "%05d(%d): [%05d", i, n, *p);
        p++;
        for (j = 1; j < n; j++, p++) {
          fprintf(f, ", %05d", *p);
        }
        fprintf(f, "]\n");
      }
    }
    fprintf(f, "}\n");
  }
}

static void ir_dump_dessa_moves(const ir_ctx *ctx, int b, ir_block *bb, FILE *f)
{
  uint32_t succ;
  ir_block *succ_bb;
  ir_use_list *use_list;
  ir_ref k, i, *p, use_ref, input;
  ir_insn *use_insn;

  IR_ASSERT(bb->successors_count == 1);
  succ = ctx->cfg_edges[bb->successors];
  succ_bb = &ctx->cfg_blocks[succ];
  IR_ASSERT(succ_bb->predecessors_count > 1);
  use_list = &ctx->use_lists[succ_bb->start];
  k = ir_phi_input_number(ctx, succ_bb, b);

  for (i = use_list->count, p = &ctx->use_edges[use_list->refs]; i > 0; p++, i--) {
    use_ref = *p;
    use_insn = &ctx->ir_base[use_ref];
    if (use_insn->op == IR_PHI) {
      input = ir_insn_op(use_insn, k);
      if (IR_IS_CONST_REF(input)) {
        fprintf(f, "\t# DESSA MOV c_%d", -input);
      } else if (ctx->vregs[input] != ctx->vregs[use_ref]) {
        fprintf(f, "\t# DESSA MOV d_%d {R%d}", input, ctx->vregs[input]);
      } else {
        continue;
      }
      if (ctx->regs) {
        int8_t *regs = ctx->regs[use_ref];
        int8_t reg = regs[k];
        if (reg != IR_REG_NONE) {
          ir_dump_reg(ctx, reg, input, 0, f);
        }
      }
      fprintf(f, " -> d_%d {R%d}", use_ref, ctx->vregs[use_ref]);
      if (ctx->regs) {
        int8_t reg = ctx->regs[use_ref][0];
        if (reg != IR_REG_NONE) {
          ir_dump_reg(ctx, reg, use_ref, 1, f);
        }
      }
      fprintf(f, "\n");
    }
  }
}

static void ir_dump_cfg_block(ir_ctx *ctx, FILE *f, uint32_t b, ir_block *bb)
{
  fprintf(f, "BB%d:\n", b);
  fprintf(f, "\tstart=%d\n", bb->start);
  fprintf(f, "\tend=%d\n", bb->end);
  if (bb->successors_count) {
    uint32_t i;

    fprintf(f, "\tsuccessors(%d) [BB%d", bb->successors_count, ctx->cfg_edges[bb->successors]);
    for (i = 1; i < bb->successors_count; i++) {
      fprintf(f, ", BB%d", ctx->cfg_edges[bb->successors + i]);
    }
    fprintf(f, "]\n");
  }
  if (bb->predecessors_count) {
    uint32_t i;

    fprintf(f, "\tpredecessors(%d) [BB%d", bb->predecessors_count, ctx->cfg_edges[bb->predecessors]);
    for (i = 1; i < bb->predecessors_count; i++) {
      fprintf(f, ", BB%d", ctx->cfg_edges[bb->predecessors + i]);
    }
    fprintf(f, "]\n");
  }
  if (bb->dom_parent > 0) {
    fprintf(f, "\tdom_parent=BB%d\n", bb->dom_parent);
  }
  fprintf(f, "\tdom_depth=%d\n", bb->dom_depth);
  if (bb->dom_child > 0) {
    int child = bb->dom_child;
    fprintf(f, "\tdom_children [BB%d", child);
    child = ctx->cfg_blocks[child].dom_next_child;
    while (child > 0) {
      fprintf(f, ", BB%d", child);
      child = ctx->cfg_blocks[child].dom_next_child;
    }
    fprintf(f, "]\n");
  }
  if (bb->flags & IR_BB_ENTRY) {
    fprintf(f, "\tENTRY\n");
  }
  if (bb->flags & IR_BB_UNREACHABLE) {
    fprintf(f, "\tUNREACHABLE\n");
  }
  if (bb->flags & IR_BB_LOOP_HEADER) {
    if (bb->flags & IR_BB_LOOP_WITH_ENTRY) {
      fprintf(f, "\tLOOP_HEADER, LOOP_WITH_ENTRY\n");
    } else {
      fprintf(f, "\tLOOP_HEADER\n");
    }
  }
  if (bb->flags & IR_BB_IRREDUCIBLE_LOOP) {
    fprintf(stderr, "\tIRREDUCIBLE_LOOP\n");
  }
  if (bb->flags & IR_BB_IRREDUCIBLE_ENTRY) {
    fprintf(stderr, "\tIRREDUCIBLE_ENTRY\n");
  }
  if (bb->loop_header > 0) {
    fprintf(f, "\tloop_header=BB%d\n", bb->loop_header);
  }
  if (bb->loop_depth != 0) {
    fprintf(f, "\tloop_depth=%d\n", bb->loop_depth);
  }
  if (bb->flags & IR_BB_OSR_ENTRY_LOADS) {
    ir_list *list = (ir_list*)ctx->osr_entry_loads;
    uint32_t pos = 0, i, count;

    IR_ASSERT(list);
    while (1) {
      i = ir_list_at(list, pos);
      if (b == i) {
        break;
      }
      IR_ASSERT(i != 0); /* end marker */
      pos++;
      count = ir_list_at(list, pos);
      pos += count + 1;
    }
    pos++;
    count = ir_list_at(list, pos);
    pos++;

    for (i = 0; i < count; i++, pos++) {
      ir_ref ref = ir_list_at(list, pos);
      fprintf(f, "\tOSR_ENTRY_LOAD=d_%d\n", ref);
    }
  }
  if (bb->flags & IR_BB_DESSA_MOVES) {
    ir_dump_dessa_moves(ctx, b, bb, f);
  }
}

void ir_dump_cfg(ir_ctx *ctx, FILE *f)
{
  if (ctx->cfg_blocks) {
    uint32_t  b, i, bb_count = ctx->cfg_blocks_count;
    ir_block *bb = ctx->cfg_blocks + 1;

    fprintf(f, "{ # CFG\n");
    if (ctx->cfg_schedule) {
      for (i = 1; i <= bb_count; i++) {
        b = ctx->cfg_schedule[i];
        bb = &ctx->cfg_blocks[b];
        ir_dump_cfg_block(ctx, f, b, bb);
      }
    } else {
      for (b = 1; b <= bb_count; b++, bb++) {
        ir_dump_cfg_block(ctx, f, b, bb);
      }
    }
    fprintf(f, "}\n");
  }
}

void ir_dump_cfg_map(const ir_ctx *ctx, FILE *f)
{
  ir_ref i;
    uint32_t *_blocks = ctx->cfg_map;

    if (_blocks) {
    fprintf(f, "{ # CFG map (insn -> bb)\n");
    for (i = IR_UNUSED + 1; i < ctx->insns_count; i++) {
      fprintf(f, "%d -> %d\n", i, _blocks[i]);
    }
    fprintf(f, "}\n");
  }
}

void ir_dump_live_ranges(const ir_ctx *ctx, FILE *f)
{
    ir_ref i, j, n;

  if (!ctx->live_intervals) {
    return;
  }
  fprintf(f, "{ # LIVE-RANGES (vregs_count=%d)\n", ctx->vregs_count);
  for (i = 0; i <= ctx->vregs_count; i++) {
    ir_live_interval *ival = ctx->live_intervals[i];

    if (ival) {
      ir_live_range *p;
      ir_use_pos *use_pos;

      if (i == 0) {
        fprintf(f, "TMP");
      } else {
        for (j = 1; j < ctx->insns_count; j++) {
          if (ctx->vregs[j] == i) {
            break;
          }
        }
        fprintf(f, "R%d (d_%d", i, j);
        for (j++; j < ctx->insns_count; j++) {
          if (ctx->vregs[j] == i) {
            fprintf(f, ", d_%d", j);
          }
        }
        fprintf(f, ")");
        if (ival->stack_spill_pos != -1) {
          if (ival->flags & IR_LIVE_INTERVAL_SPILL_SPECIAL) {
            IR_ASSERT(ctx->spill_base >= 0);
            fprintf(f, " [SPILL=0x%x(%%%s)]", ival->stack_spill_pos, ir_reg_name(ctx->spill_base, IR_ADDR));
          } else {
            fprintf(f, " [SPILL=0x%x]", ival->stack_spill_pos);
          }
        }
      }
      if (ival->next) {
        fprintf(f, "\n\t");
      } else if (ival->reg != IR_REG_NONE) {
        fprintf(f, " ");
      }
      do {
        if (ival->reg != IR_REG_NONE) {
#if IR_X86_I64
          if (ival->type == IR_I64 || ival->type == IR_U64) {
            fprintf(f, "[%%%s,%%%s]", ir_reg_name(ival->reg, IR_U32), ir_reg_name(ival->reg_hi, IR_U32));
          } else
#endif
          fprintf(f, "[%%%s]", ir_reg_name(ival->reg, ival->type));
        }
        p = &ival->range;
        fprintf(f, ": [%d.%d-%d.%d)",
          IR_LIVE_POS_TO_REF(p->start), IR_LIVE_POS_TO_SUB_REF(p->start),
          IR_LIVE_POS_TO_REF(p->end), IR_LIVE_POS_TO_SUB_REF(p->end));
        if (i == 0) {
          /* This is a TMP register */
          if (ival->tmp_ref == IR_LIVE_POS_TO_REF(p->start)) {
            fprintf(f, "/%d", ival->tmp_op_num);
          } else {
            fprintf(f, "/%d.%d", ival->tmp_ref, ival->tmp_op_num);
          }
        } else {
          p = p->next;
          while (p) {
            fprintf(f, ", [%d.%d-%d.%d)",
              IR_LIVE_POS_TO_REF(p->start), IR_LIVE_POS_TO_SUB_REF(p->start),
              IR_LIVE_POS_TO_REF(p->end), IR_LIVE_POS_TO_SUB_REF(p->end));
            p = p->next;
          }
        }
        use_pos = ival->use_pos;
        while (use_pos) {
          if (use_pos->flags & IR_PHI_USE) {
            IR_ASSERT(use_pos->op_num > 0);
            fprintf(f, ", PHI_USE(%d.%d, phi=d_%d/%d)",
              IR_LIVE_POS_TO_REF(use_pos->pos), IR_LIVE_POS_TO_SUB_REF(use_pos->pos),
              -use_pos->hint_ref, use_pos->op_num);
          } else if (use_pos->flags & IR_FUSED_USE) {
            fprintf(f, ", USE(%d.%d/%d.%d",
              IR_LIVE_POS_TO_REF(use_pos->pos), IR_LIVE_POS_TO_SUB_REF(use_pos->pos),
              -use_pos->hint_ref, use_pos->op_num);
            if (use_pos->hint >= 0) {
#if IR_X86_I64
              if (ival->type == IR_I64 || ival->type == IR_U64) {
                if (use_pos->flags & IR_HINT_TWO_REGS) {
                  fprintf(f, ", hint=%%%s,%%%s",
                    ir_reg_name(IR_REG_I64_LO(use_pos->hint), IR_U32),
                    ir_reg_name(IR_REG_I64_HI(use_pos->hint), IR_U32));
                } else {
                  fprintf(f, ", hint=%%%s", ir_reg_name(use_pos->hint, IR_U32));
                }
              } else
#endif
              fprintf(f, ", hint=%%%s", ir_reg_name(use_pos->hint, ival->type));
            }
            fprintf(f, ")");
            if (use_pos->flags & IR_USE_MUST_BE_IN_REG) {
              fprintf(f, "!");
            }
          } else {
            if (!use_pos->op_num) {
              fprintf(f, ", DEF(%d.%d",
                IR_LIVE_POS_TO_REF(use_pos->pos), IR_LIVE_POS_TO_SUB_REF(use_pos->pos));
            } else {
              fprintf(f, ", USE(%d.%d/%d",
                IR_LIVE_POS_TO_REF(use_pos->pos), IR_LIVE_POS_TO_SUB_REF(use_pos->pos),
                use_pos->op_num);
            }
            if (use_pos->hint >= 0) {
#if IR_X86_I64
              if (ival->type == IR_I64 || ival->type == IR_U64) {
                if (use_pos->flags & IR_HINT_TWO_REGS) {
                  fprintf(f, ", hint=%%%s,%%%s",
                    ir_reg_name(IR_REG_I64_LO(use_pos->hint), IR_U32),
                    ir_reg_name(IR_REG_I64_HI(use_pos->hint), IR_U32));
                } else {
                  fprintf(f, ", hint=%%%s", ir_reg_name(use_pos->hint, IR_U32));
                  }
              } else
#endif
              fprintf(f, ", hint=%%%s", ir_reg_name(use_pos->hint, ival->type));
            }
            if (use_pos->hint_ref) {
              fprintf(f, ", hint=R%d", ctx->vregs[use_pos->hint_ref]);
            }
            fprintf(f, ")");
            if (use_pos->flags & IR_USE_MUST_BE_IN_REG) {
              fprintf(f, "!");
            }
          }
          use_pos = use_pos->next;
        }
        if (ival->next) {
          fprintf(f, "\n\t");
        }
        ival = ival->next;
      } while (ival);
      fprintf(f, "\n");
    }
  }
#if 1
  n = ctx->vregs_count + 1 + IR_REG_SET_NUM;
  for (i = ctx->vregs_count + 1; i < n; i++) {
    ir_live_interval *ival = ctx->live_intervals[i];

    if (ival) {
      ir_live_range *p = &ival->range;
      fprintf(f, "[%%%s] : [%d.%d-%d.%d)",
        ir_reg_name(ival->reg, ival->type),
        IR_LIVE_POS_TO_REF(p->start), IR_LIVE_POS_TO_SUB_REF(p->start),
        IR_LIVE_POS_TO_REF(p->end), IR_LIVE_POS_TO_SUB_REF(p->end));
      p = p->next;
      while (p) {
        fprintf(f, ", [%d.%d-%d.%d)",
          IR_LIVE_POS_TO_REF(p->start), IR_LIVE_POS_TO_SUB_REF(p->start),
          IR_LIVE_POS_TO_REF(p->end), IR_LIVE_POS_TO_SUB_REF(p->end));
        p = p->next;
      }
      fprintf(f, "\n");
    }
  }
#endif
  fprintf(f, "}\n");
}

void ir_dump_codegen(const ir_ctx *ctx, FILE *f)
{
  ir_ref i, j, n, ref, *p;
  ir_insn *insn;
  uint32_t flags, _b, b;
  ir_block *bb;
  bool first;

  fprintf(f, "{\n");
  /* Separate behavior to keep tests compatibility. TODO: remove the old behavior */
  if (ctx->flags2 & IR_HAS_LONG_CONSTANTS) {
    for (i = 1 - ctx->consts_count, insn = ctx->ir_base + i; i < IR_UNUSED; i++, insn++) {
      fprintf(f, "\t");
      ir_print_type_cname(insn->type, f);
      fprintf(f, " c_%d = ", -i);
      if (insn->op == IR_FUNC) {
        fprintf(f, "func %s", ir_get_str(ctx, insn->val.name));
        ir_print_proto(ctx, insn->proto, f);
      } else if (insn->op == IR_SYM) {
        fprintf(f, "sym(%s)", ir_get_str(ctx, insn->val.name));
      } else if (insn->op == IR_LABEL) {
        fprintf(f, "label(%s)", ir_get_str(ctx, insn->val.name));
      } else if (insn->op == IR_FUNC_ADDR) {
        fprintf(f, "func *");
        ir_print_const(ctx, insn, f, true);
        ir_print_proto(ctx, insn->proto, f);
      } else {
        ir_print_const(ctx, insn, f, true);
      }
      fprintf(f, ";\n");
      if (insn->op == IR_LONG_CONST) {
        i += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
        insn += IR_ALIGNED_SIZE(insn->long_const_size, sizeof(ir_insn)) / sizeof(ir_insn);
      }
    }
  } else {
    for (i = IR_UNUSED + 1, insn = ctx->ir_base - i; i < ctx->consts_count; i++, insn--) {
      fprintf(f, "\t");
      ir_print_type_cname(insn->type, f);
      fprintf(f, " c_%d = ", i);
      if (insn->op == IR_FUNC) {
        fprintf(f, "func %s", ir_get_str(ctx, insn->val.name));
        ir_print_proto(ctx, insn->proto, f);
      } else if (insn->op == IR_SYM) {
        fprintf(f, "sym(%s)", ir_get_str(ctx, insn->val.name));
      } else if (insn->op == IR_LABEL) {
        fprintf(f, "label(%s)", ir_get_str(ctx, insn->val.name));
      } else if (insn->op == IR_FUNC_ADDR) {
        fprintf(f, "func *");
        ir_print_const(ctx, insn, f, true);
        ir_print_proto(ctx, insn->proto, f);
      } else {
        ir_print_const(ctx, insn, f, true);
      }
      fprintf(f, ";\n");
    }
  }

  for (_b = 1; _b <= ctx->cfg_blocks_count; _b++) {
    if (ctx->cfg_schedule) {
      b = ctx->cfg_schedule[_b];
    } else {
      b = _b;
    }
    bb = &ctx->cfg_blocks[b];
    if ((bb->flags & (IR_BB_START|IR_BB_ENTRY|IR_BB_EMPTY)) == IR_BB_EMPTY) {
      continue;
    }

    fprintf(f, "#BB%d: end=l_%d", b, bb->end);
    if (bb->flags & IR_BB_UNREACHABLE) {
      fprintf(f, ", U");
    }
    if (bb->dom_parent > 0) {
      fprintf(f, ", idom=BB%d(%d)", bb->dom_parent, bb->dom_depth);
    }
    if (bb->loop_depth != 0) {
      if (bb->flags & IR_BB_LOOP_HEADER) {
        if (bb->loop_header > 0) {
          fprintf(f, ", loop=HDR,BB%d(%d)", bb->loop_header, bb->loop_depth);
        } else {
          IR_ASSERT(bb->loop_depth == 1);
          fprintf(f, ", loop=HDR(%d)", bb->loop_depth);
        }
      } else {
        IR_ASSERT(bb->loop_header > 0);
        fprintf(f, ", loop=BB%d(%d)", bb->loop_header, bb->loop_depth);
      }
    }
    if (bb->predecessors_count) {
      uint32_t i;

      fprintf(f, ", pred(%d)=[BB%d", bb->predecessors_count, ctx->cfg_edges[bb->predecessors]);
      for (i = 1; i < bb->predecessors_count; i++) {
        fprintf(f, ", BB%d", ctx->cfg_edges[bb->predecessors + i]);
      }
      fprintf(f, "]");
    }
    if (bb->successors_count) {
      uint32_t i;

      fprintf(f, ", succ(%d)=[BB%d", bb->successors_count, ctx->cfg_edges[bb->successors]);
      for (i = 1; i < bb->successors_count; i++) {
        fprintf(f, ", BB%d", ctx->cfg_edges[bb->successors + i]);
      }
      fprintf(f, "]");
    }
    fprintf(f, "\n");

    for (i = bb->start, insn = ctx->ir_base + i; i <= bb->end;) {
      flags = ir_op_flags[insn->op];
      if (flags & IR_OP_FLAG_CONTROL) {
        if (!(flags & IR_OP_FLAG_MEM) || insn->type == IR_VOID) {
          fprintf(f, "\tl_%d = ", i);
        } else {
          fprintf(f, "\t");
          ir_print_type_cname(insn->type, f);
          fprintf(f, " d_%d", i);
          if (ctx->vregs && ctx->vregs[i] > 0) {
            fprintf(f, " {R%d}", ctx->vregs[i]);
          }
          if (ctx->regs) {
            int8_t reg = ctx->regs[i][0];
            if (reg != IR_REG_NONE) {
              ir_dump_reg(ctx, reg, i, 1, f);
            }
          }
          fprintf(f, ", l_%d = ", i);
        }
      } else {
        fprintf(f, "\t");
        if (flags & IR_OP_FLAG_DATA) {
          ir_print_type_cname(insn->type, f);
          fprintf(f, " d_%d", i);
          if (ctx->vregs && ctx->vregs[i] > 0) {
            fprintf(f, " {R%d}", ctx->vregs[i]);
          }
          if (ctx->regs) {
            int8_t reg = ctx->regs[i][0];
            if (reg != IR_REG_NONE) {
              ir_dump_reg(ctx, reg, i, 1, f);
            }
          }
          fprintf(f, " = ");
        }
      }
      fprintf(f, "%s", ir_op_name[insn->op]);
      n = ir_operands_count(ctx, insn);
      if ((insn->op == IR_MERGE || insn->op == IR_LOOP_BEGIN) && n != 2) {
        fprintf(f, "/%d", n);
      } else if ((insn->op == IR_CALL || insn->op == IR_TAILCALL) && n != 2) {
        fprintf(f, "/%d", n - 2);
      } else if (insn->op == IR_PHI && n != 3) {
        fprintf(f, "/%d", n - 1);
      } else if (insn->op == IR_SNAPSHOT) {
        fprintf(f, "/%d", n - 1);
      }
      first = 1;
      for (j = 1, p = insn->ops + 1; j <= n; j++, p++) {
        uint32_t opnd_kind = IR_OPND_KIND(flags, j);

        ref = *p;
        if (ref) {
          switch (opnd_kind) {
            case IR_OPND_DATA:
              if (IR_IS_CONST_REF(ref)) {
                fprintf(f, "%sc_%d", first ? "(" : ", ", -ref);
              } else {
                fprintf(f, "%sd_%d", first ? "(" : ", ", ref);
              }
              if (ctx->vregs && ref > 0 && ctx->vregs[ref] > 0) {
                fprintf(f, " {R%d}", ctx->vregs[ref]);
              }
              if (ctx->regs) {
                int8_t *regs = ctx->regs[i];
                int8_t reg = regs[j];
                if (reg != IR_REG_NONE) {
                  ir_dump_reg(ctx, reg, ref, 0, f);
                }
              }
              first = 0;
              break;
            case IR_OPND_CONTROL:
            case IR_OPND_CONTROL_DEP:
            case IR_OPND_CONTROL_REF:
            case IR_OPND_CONTROL_GUARD:
              fprintf(f, "%sl_%d", first ? "(" : ", ", ref);
              first = 0;
              break;
            case IR_OPND_STR:
              fprintf(f, "%s\"%s\"", first ? "(" : ", ", ir_get_str(ctx, ref));
              first = 0;
              break;
            case IR_OPND_PROTO:
              fprintf(f, "%sfunc ", first ? "(" : ", ");
              ir_print_proto(ctx, ref, f);
              break;
            case IR_OPND_OPT:
              if (ref == 0) {
                break;
              }
              IR_FALLTHROUGH;
            case IR_OPND_NUM:
              fprintf(f, "%s%d", first ? "(" : ", ", ref);
              first = 0;
              break;
            case IR_OPND_LABEL_REF:
              if (ref) {
                IR_ASSERT(IR_IS_CONST_REF(ref));
                fprintf(f, "%sc_%d", first ? "(" : ", ", -ref);
              }
              break;
          }
        } else if (opnd_kind == IR_OPND_NUM) {
          fprintf(f, "%s%d", first ? "(" : ", ", ref);
          first = 0;
        } else if (opnd_kind == IR_OPND_CONTROL_GUARD) {
          /* skip */
        } else if (j != n &&
            (IR_IS_REF_OPND_KIND(opnd_kind) || (opnd_kind == IR_OPND_UNUSED && p[n-j]))) {
          fprintf(f, "%snull", first ? "(" : ", ");
          first = 0;
        }
      }
      if (first) {
        fprintf(f, ";");
      } else if (ctx->value_params
       && insn->op == IR_PARAM
       && ctx->value_params[insn->op3 - 1].align) {
        fprintf(f, ") ByVal(%d, %d);",
          ctx->value_params[insn->op3 - 1].size,
          ctx->value_params[insn->op3 - 1].align);
      } else {
        fprintf(f, ");");
      }
      if (((flags & IR_OP_FLAG_DATA) || ((flags & IR_OP_FLAG_MEM) && insn->type != IR_VOID)) && ctx->binding) {
        ir_ref var = ir_binding_find(ctx, i);
        if (var) {
          IR_ASSERT(var < 0);
          fprintf(f, " # BIND(0x%x);", -var);
        }
      }
      if (ctx->rules) {
        uint32_t rule = ctx->rules[i];
        uint32_t id = rule & IR_RULE_MASK;

        if (id < IR_LAST_OP) {
          fprintf(f, " # RULE(%s", ir_op_name[id]);
        } else {
          IR_ASSERT(id > IR_LAST_OP /*&& id < IR_LAST_RULE*/);
          fprintf(f, " # RULE(%s", ir_rule_name[id - IR_LAST_OP]);
        }
        if (rule & IR_FUSED) {
          fprintf(f, ":FUSED");
        }
        if (rule & IR_SKIPPED) {
          fprintf(f, ":SKIPPED");
        }
        if (rule & IR_SIMPLE) {
          fprintf(f, ":SIMPLE");
        }
#if IR_X86_I64
        if (rule & IR_TWO_REGS) {
          fprintf(f, ":TWO_REGS");
        }
#endif
        fprintf(f, ")");
      }
      fprintf(f, "\n");
      n = ir_insn_inputs_to_len(n);
      i += n;
      insn += n;
    }

    if (bb->flags & IR_BB_DESSA_MOVES) {
      ir_dump_dessa_moves(ctx, b, bb, f);
    }

    insn = &ctx->ir_base[bb->end];
    if (insn->op == IR_END || insn->op == IR_LOOP_END) {
      uint32_t succ;

      if (bb->successors_count == 1) {
        succ = ctx->cfg_edges[bb->successors];
      } else {
        /* END may have a fake control edge to ENTRY */
        IR_ASSERT(bb->successors_count == 2);
        succ = ctx->cfg_edges[bb->successors];
        if (ctx->ir_base[ctx->cfg_blocks[succ].start].op == IR_ENTRY) {
          succ = ctx->cfg_edges[bb->successors + 1];
#ifdef IR_DEBUG
        } else {
          uint32_t fake_succ = ctx->cfg_edges[bb->successors + 1];
          IR_ASSERT(ctx->ir_base[ctx->cfg_blocks[fake_succ].start].op == IR_ENTRY);
#endif
        }
      }
      succ = ir_skip_empty_target_blocks(ctx, succ);
      if (ctx->cfg_schedule) {
        if (_b == ctx->cfg_blocks_count || succ != ctx->cfg_schedule[_b + 1]) {
          fprintf(f, "\t# GOTO BB%d\n", succ);
        }
      } else {
        if (succ != b + 1) {
          fprintf(f, "\t# GOTO BB%d\n", succ);
        }
      }
    } else if (insn->op == IR_IF) {
      uint32_t true_block, false_block;

      ir_get_true_false_blocks(ctx, b, &true_block, &false_block);
      fprintf(f, "\t# IF_TRUE BB%d, IF_FALSE BB%d\n", true_block, false_block);
    } else if (insn->op == IR_SWITCH) {
      fprintf(f, "\t# SWITCH ...\n");
    }
  }
  fprintf(f, "}\n");
}

Coverage Report

Created: 2026-10-28 06:20