/src/php-src/Zend/Optimizer/zend_dump.c

Source
/*
   +----------------------------------------------------------------------+
   | Zend Engine, Bytecode Visualisation                                  |
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Dmitry Stogov <dmitry@php.net>                              |
   +----------------------------------------------------------------------+
*/

#include "zend_compile.h"
#include "zend_cfg.h"
#include "zend_ssa.h"
#include "zend_inference.h"
#include "zend_func_info.h"
#include "zend_call_graph.h"
#include "zend_dump.h"
#include "zend_smart_str.h"

void zend_dump_ht(HashTable *ht)
{
  zend_ulong index;
  zend_string *key;
  zval *val;
  bool first = true;

  ZEND_HASH_FOREACH_KEY_VAL(ht, index, key, val) {
    if (first) {
      first = false;
    } else {
      fprintf(stderr, ", ");
    }
    if (key) {
      fprintf(stderr, "\"%s\"", ZSTR_VAL(key));
    } else {
      fprintf(stderr, ZEND_LONG_FMT, index);
    }
    fprintf(stderr, " =>");
    zend_dump_const(val);
  } ZEND_HASH_FOREACH_END();
}

void zend_dump_const(const zval *zv)
{
  switch (Z_TYPE_P(zv)) {
    case IS_NULL:
      fprintf(stderr, " null");
      break;
    case IS_FALSE:
      fprintf(stderr, " bool(false)");
      break;
    case IS_TRUE:
      fprintf(stderr, " bool(true)");
      break;
    case IS_LONG:
      fprintf(stderr, " int(" ZEND_LONG_FMT ")", Z_LVAL_P(zv));
      break;
    case IS_DOUBLE:
      fprintf(stderr, " float(%g)", Z_DVAL_P(zv));
      break;
    case IS_STRING: {
      smart_str escaped_string = {0};
      smart_str_append_escaped(&escaped_string, Z_STRVAL_P(zv), Z_STRLEN_P(zv));
      smart_str_0(&escaped_string);

      fprintf(stderr, " string(\"");

      /* Also escape '"' */
      for (size_t i = 0; i < ZSTR_LEN(escaped_string.s); i++) {
        if (ZSTR_VAL(escaped_string.s)[i] == '"') {
          fprintf(stderr, "\\\"");
        } else {
          putc(ZSTR_VAL(escaped_string.s)[i], stderr);
        }
      }

      fprintf(stderr, "\")");

      smart_str_free_ex(&escaped_string, false);
      break;
    }
    case IS_ARRAY:
      fprintf(stderr, " array(...)");
      break;
    default:
      fprintf(stderr, " zval(type=%d)", Z_TYPE_P(zv));
      break;
  }
}

static void zend_dump_class_fetch_type(uint32_t fetch_type)
{
  switch (fetch_type & ZEND_FETCH_CLASS_MASK) {
    case ZEND_FETCH_CLASS_SELF:
      fprintf(stderr, " (self)");
      break;
    case ZEND_FETCH_CLASS_PARENT:
      fprintf(stderr, " (parent)");
      break;
    case ZEND_FETCH_CLASS_STATIC:
      fprintf(stderr, " (static)");
      break;
    case ZEND_FETCH_CLASS_AUTO:
      fprintf(stderr, " (auto)");
      break;
    case ZEND_FETCH_CLASS_INTERFACE:
      fprintf(stderr, " (interface)");
      break;
    case ZEND_FETCH_CLASS_TRAIT:
      fprintf(stderr, " (trait)");
      break;
  }
  if (fetch_type & ZEND_FETCH_CLASS_NO_AUTOLOAD) {
      fprintf(stderr, " (no-autoload)");
  }
  if (fetch_type & ZEND_FETCH_CLASS_SILENT) {
      fprintf(stderr, " (silent)");
  }
  if (fetch_type & ZEND_FETCH_CLASS_EXCEPTION) {
      fprintf(stderr, " (exception)");
  }
}

static void zend_dump_unused_op(const zend_op *opline, znode_op op, uint32_t flags) {
  if (ZEND_VM_OP_NUM == (flags & ZEND_VM_OP_MASK)) {
    fprintf(stderr, " %u", op.num);
  } else if (ZEND_VM_OP_TRY_CATCH == (flags & ZEND_VM_OP_MASK)) {
    if (op.num != (uint32_t)-1) {
      fprintf(stderr, " try-catch(%u)", op.num);
    }
  } else if (ZEND_VM_OP_LOOP_END == (flags & ZEND_VM_OP_MASK)) {
    if (opline->extended_value & ZEND_FREE_ON_RETURN) {
      fprintf(stderr, " loop-end(+%u)", op.num);
    }
  } else if (ZEND_VM_OP_THIS == (flags & ZEND_VM_OP_MASK)) {
    fprintf(stderr, " THIS");
  } else if (ZEND_VM_OP_NEXT == (flags & ZEND_VM_OP_MASK)) {
    fprintf(stderr, " NEXT");
  } else if (ZEND_VM_OP_CLASS_FETCH == (flags & ZEND_VM_OP_MASK)) {
    zend_dump_class_fetch_type(op.num);
  } else if (ZEND_VM_OP_CONSTRUCTOR == (flags & ZEND_VM_OP_MASK)) {
    fprintf(stderr, " CONSTRUCTOR");
  } else if (ZEND_VM_OP_CONST_FETCH == (flags & ZEND_VM_OP_MASK)) {
    if (op.num & IS_CONSTANT_UNQUALIFIED_IN_NAMESPACE) {
      fprintf(stderr, " (unqualified-in-namespace)");
    }
  }
}

ZEND_API void zend_dump_var(const zend_op_array *op_array, uint8_t var_type, uint32_t var_num)
{
  if (var_type == IS_CV && var_num < op_array->last_var) {
    fprintf(stderr, "CV%d($%s)", var_num, op_array->vars[var_num]->val);
  } else if (var_type == IS_VAR) {
    fprintf(stderr, "V%d", var_num);
  } else if ((var_type & (IS_VAR|IS_TMP_VAR)) == IS_TMP_VAR) {
    fprintf(stderr, "T%d", var_num);
  } else {
    fprintf(stderr, "X%d", var_num);
  }
}

static void zend_dump_range(const zend_ssa_range *r)
{
  if (r->underflow && r->overflow) {
    return;
  }
  fprintf(stderr, " RANGE[");
  if (r->underflow) {
    fprintf(stderr, "--..");
  } else if (r->min == ZEND_LONG_MIN) {
    fprintf(stderr, "MIN..");
  } else {
    fprintf(stderr, ZEND_LONG_FMT "..", r->min);
  }
  if (r->overflow) {
    fprintf(stderr, "++]");
  } else if (r->max == ZEND_LONG_MAX) {
    fprintf(stderr, "MAX]");
  } else {
    fprintf(stderr, ZEND_LONG_FMT "]", r->max);
  }
}

static void zend_dump_type_info(uint32_t info, zend_class_entry *ce, int is_instanceof, uint32_t dump_flags)
{
  bool first = true;

  fprintf(stderr, " [");
  if (info & MAY_BE_GUARD) {
    fprintf(stderr, "!");
  }
  if (info & MAY_BE_UNDEF) {
    if (first) first = false; else fprintf(stderr, ", ");
    fprintf(stderr, "undef");
  }
  if (info & MAY_BE_INDIRECT) {
    if (first) first = false; else fprintf(stderr, ", ");
    fprintf(stderr, "ind");
  }
  if (info & MAY_BE_REF) {
    if (first) first = false; else fprintf(stderr, ", ");
    fprintf(stderr, "ref");
  }
  if (dump_flags & ZEND_DUMP_RC_INFERENCE) {
    if (info & MAY_BE_RC1) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "rc1");
    }
    if (info & MAY_BE_RCN) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "rcn");
    }
  }
  if (info & MAY_BE_CLASS) {
    if (first) first = false; else fprintf(stderr, ", ");
    fprintf(stderr, "class");
    if (ce) {
      if (is_instanceof) {
        fprintf(stderr, " (instanceof %s)", ce->name->val);
      } else {
        fprintf(stderr, " (%s)", ce->name->val);
      }
    }
  } else if ((info & MAY_BE_ANY) == MAY_BE_ANY) {
    if (first) first = false; else fprintf(stderr, ", ");
    fprintf(stderr, "any");
  } else {
    if (info & MAY_BE_NULL) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "null");
    }
    if ((info & MAY_BE_FALSE) && (info & MAY_BE_TRUE)) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "bool");
    } else if (info & MAY_BE_FALSE) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "false");
    } else if (info & MAY_BE_TRUE) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "true");
    }
    if (info & MAY_BE_LONG) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "long");
    }
    if (info & MAY_BE_DOUBLE) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "double");
    }
    if (info & MAY_BE_STRING) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "string");
    }
    if (info & MAY_BE_ARRAY) {
      if (first) first = false; else fprintf(stderr, ", ");
      if (info & MAY_BE_PACKED_GUARD) {
        fprintf(stderr, "!");
      }
      if (MAY_BE_EMPTY_ONLY(info)) {
        fprintf(stderr, "empty ");
      } else if (MAY_BE_PACKED_ONLY(info)) {
        fprintf(stderr, "packed ");
      } else if (MAY_BE_HASH_ONLY(info)) {
        fprintf(stderr, "hash ");
      } else if ((info & MAY_BE_ARRAY_KEY_ANY) != MAY_BE_ARRAY_KEY_ANY && (info & MAY_BE_ARRAY_KEY_ANY) != 0) {
        bool afirst = true;
        fprintf(stderr, "[");
        if (info & MAY_BE_ARRAY_EMPTY) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "empty");
        }
        if (MAY_BE_PACKED(info)) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "packed");
        }
        if (MAY_BE_HASH(info)) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "hash");
        }
        fprintf(stderr, "] ");
      }
      fprintf(stderr, "array");
      if ((info & (MAY_BE_ARRAY_KEY_LONG|MAY_BE_ARRAY_KEY_STRING)) != 0 &&
          ((info & MAY_BE_ARRAY_KEY_LONG) == 0 ||
           (info & MAY_BE_ARRAY_KEY_STRING) == 0)) {
        bool afirst = true;
        fprintf(stderr, " [");
        if (info & MAY_BE_ARRAY_KEY_LONG) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "long");
        }
        if (info & MAY_BE_ARRAY_KEY_STRING) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "string");
          }
        fprintf(stderr, "]");
      }
      if (info & (MAY_BE_ARRAY_OF_ANY|MAY_BE_ARRAY_OF_REF)) {
        bool afirst = true;
        fprintf(stderr, " of [");
        if ((info & MAY_BE_ARRAY_OF_ANY) == MAY_BE_ARRAY_OF_ANY) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "any");
        } else {
          if (info & MAY_BE_ARRAY_OF_NULL) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "null");
          }
          if (info & MAY_BE_ARRAY_OF_FALSE) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "false");
          }
          if (info & MAY_BE_ARRAY_OF_TRUE) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "true");
          }
          if (info & MAY_BE_ARRAY_OF_LONG) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "long");
          }
          if (info & MAY_BE_ARRAY_OF_DOUBLE) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "double");
          }
          if (info & MAY_BE_ARRAY_OF_STRING) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "string");
          }
          if (info & MAY_BE_ARRAY_OF_ARRAY) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "array");
          }
          if (info & MAY_BE_ARRAY_OF_OBJECT) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "object");
          }
          if (info & MAY_BE_ARRAY_OF_RESOURCE) {
            if (afirst) afirst = false; else fprintf(stderr, ", ");
            fprintf(stderr, "resource");
          }
        }
        if (info & MAY_BE_ARRAY_OF_REF) {
          if (afirst) afirst = false; else fprintf(stderr, ", ");
          fprintf(stderr, "ref");
        }
        fprintf(stderr, "]");
      }
    }
    if (info & MAY_BE_OBJECT) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "object");
      if (ce) {
        if (is_instanceof) {
          fprintf(stderr, " (instanceof %s)", ce->name->val);
        } else {
          fprintf(stderr, " (%s)", ce->name->val);
        }
      }
    }
    if (info & MAY_BE_RESOURCE) {
      if (first) first = false; else fprintf(stderr, ", ");
      fprintf(stderr, "resource");
    }
  }
  fprintf(stderr, "]");
}

static void zend_dump_ssa_var_info(const zend_ssa *ssa, int ssa_var_num, uint32_t dump_flags)
{
  zend_dump_type_info(
    ssa->var_info[ssa_var_num].type,
    ssa->var_info[ssa_var_num].ce,
    ssa->var_info[ssa_var_num].ce ?
      ssa->var_info[ssa_var_num].is_instanceof : 0,
    dump_flags);
}

ZEND_API void zend_dump_ssa_var(const zend_op_array *op_array, const zend_ssa *ssa, int ssa_var_num, uint8_t var_type, uint32_t var_num, uint32_t dump_flags)
{
  if (ssa_var_num >= 0) {
    fprintf(stderr, "#%d.", ssa_var_num);
  } else {
    fprintf(stderr, "#?.");
  }
  zend_dump_var(op_array, (var_num < op_array->last_var ? IS_CV : var_type), var_num);

  if (ssa_var_num >= 0 && ssa->vars) {
    if (ssa->vars[ssa_var_num].no_val) {
      fprintf(stderr, " NOVAL");
    }
    if (ssa->vars[ssa_var_num].escape_state == ESCAPE_STATE_NO_ESCAPE) {
      fprintf(stderr, " NOESC");
    }
    if (ssa->var_info) {
      zend_dump_ssa_var_info(ssa, ssa_var_num, dump_flags);
      if (ssa->var_info[ssa_var_num].has_range) {
        zend_dump_range(&ssa->var_info[ssa_var_num].range);
      }
    }
  }
}

static void zend_dump_type_constraint(const zend_op_array *op_array, const zend_ssa *ssa, const zend_ssa_type_constraint *constraint, uint32_t dump_flags)
{
  fprintf(stderr, " TYPE");
  zend_dump_type_info(constraint->type_mask, constraint->ce, 1, dump_flags);
}

static void zend_dump_range_constraint(const zend_op_array *op_array, const zend_ssa *ssa, const zend_ssa_range_constraint *r, uint32_t dump_flags)
{
  if (r->range.underflow && r->range.overflow) {
    return;
  }
  fprintf(stderr, " RANGE");
  if (r->negative) {
    fprintf(stderr, "~");
  }
  fprintf(stderr, "[");
  if (r->range.underflow) {
    fprintf(stderr, "-- .. ");
  } else {
    if (r->min_ssa_var >= 0) {
      zend_dump_ssa_var(op_array, ssa, r->min_ssa_var, (r->min_var < op_array->last_var ? IS_CV : 0), r->min_var, dump_flags);
      if (r->range.min > 0) {
        fprintf(stderr, " + " ZEND_LONG_FMT, r->range.min);
      } else if (r->range.min < 0) {
        fprintf(stderr, " - " ZEND_LONG_FMT, -r->range.min);
      }
      fprintf(stderr, " .. ");
    } else {
      fprintf(stderr, ZEND_LONG_FMT " .. ", r->range.min);
    }
  }
  if (r->range.overflow) {
    fprintf(stderr, "++]");
  } else {
    if (r->max_ssa_var >= 0) {
      zend_dump_ssa_var(op_array, ssa, r->max_ssa_var, (r->max_var < op_array->last_var ? IS_CV : 0), r->max_var, dump_flags);
      if (r->range.max > 0) {
        fprintf(stderr, " + " ZEND_LONG_FMT, r->range.max);
      } else if (r->range.max < 0) {
        fprintf(stderr, " - " ZEND_LONG_FMT, -r->range.max);
      }
      fprintf(stderr, "]");
    } else {
      fprintf(stderr, ZEND_LONG_FMT "]", r->range.max);
    }
  }
}

ZEND_API void zend_dump_op(const zend_op_array *op_array, const zend_basic_block *b, const zend_op *opline, uint32_t dump_flags, const zend_ssa *ssa, const zend_ssa_op *ssa_op)
{
  const char *name = zend_get_opcode_name(opline->opcode);
  uint32_t flags = zend_get_opcode_flags(opline->opcode);
  uint32_t n = 0;

  if (!ssa_op || ssa_op->result_use < 0) {
    if (opline->result_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
      if (ssa_op && ssa_op->result_def >= 0) {
        int ssa_var_num = ssa_op->result_def;
        zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
      } else {
        zend_dump_var(op_array, opline->result_type, EX_VAR_TO_NUM(opline->result.var));
      }
      fprintf(stderr, " = ");
    }
  }

  if (name) {
    fprintf(stderr, "%s", (name + 5));
  } else {
    fprintf(stderr, "OP_%d", (int)opline->opcode);
  }

  if (ZEND_OP_IS_FRAMELESS_ICALL(opline->opcode)) {
    zend_function *func = ZEND_FLF_FUNC(opline);
    fprintf(stderr, "(%s)", ZSTR_VAL(func->common.function_name));
  }

  if (ZEND_VM_EXT_NUM == (flags & ZEND_VM_EXT_MASK)) {
    fprintf(stderr, " %u", opline->extended_value);
  } else if (ZEND_VM_EXT_OP == (flags & ZEND_VM_EXT_MASK)) {
    fprintf(stderr, " (%s)", zend_get_opcode_name(opline->extended_value) + 5);
  } else if (ZEND_VM_EXT_TYPE == (flags & ZEND_VM_EXT_MASK)) {
    switch (opline->extended_value) {
      case IS_NULL:
        fprintf(stderr, " (null)");
        break;
      case IS_FALSE:
        fprintf(stderr, " (false)");
        break;
      case IS_TRUE:
        fprintf(stderr, " (true)");
        break;
      case IS_LONG:
        fprintf(stderr, " (long)");
        break;
      case IS_DOUBLE:
        fprintf(stderr, " (double)");
        break;
      case IS_STRING:
        fprintf(stderr, " (string)");
        break;
      case IS_ARRAY:
        fprintf(stderr, " (array)");
        break;
      case IS_OBJECT:
        fprintf(stderr, " (object)");
        break;
      case IS_RESOURCE:
        fprintf(stderr, " (resource)");
        break;
      case _IS_BOOL:
        fprintf(stderr, " (bool)");
        break;
      case IS_CALLABLE:
        fprintf(stderr, " (callable)");
        break;
      case IS_VOID:
        fprintf(stderr, " (void)");
        break;
      case IS_NEVER:
        fprintf(stderr, " (never)");
        break;
      default:
        fprintf(stderr, " (\?\?\?)");
        break;
    }
  } else if (ZEND_VM_EXT_TYPE_MASK == (flags & ZEND_VM_EXT_MASK)) {
    switch (opline->extended_value) {
      case (1<<IS_NULL):
        fprintf(stderr, " (null)");
        break;
      case (1<<IS_FALSE):
        fprintf(stderr, " (false)");
        break;
      case (1<<IS_TRUE):
        fprintf(stderr, " (true)");
        break;
      case (1<<IS_LONG):
        fprintf(stderr, " (long)");
        break;
      case (1<<IS_DOUBLE):
        fprintf(stderr, " (double)");
        break;
      case (1<<IS_STRING):
        fprintf(stderr, " (string)");
        break;
      case (1<<IS_ARRAY):
        fprintf(stderr, " (array)");
        break;
      case (1<<IS_OBJECT):
        fprintf(stderr, " (object)");
        break;
      case (1<<IS_RESOURCE):
        fprintf(stderr, " (resource)");
        break;
      case ((1<<IS_FALSE)|(1<<IS_TRUE)):
        fprintf(stderr, " (bool)");
        break;
      default:
        fprintf(stderr, " TYPE");
        zend_dump_type_info(opline->extended_value, NULL, 0, dump_flags);
        break;
    }
  } else if (ZEND_VM_EXT_EVAL == (flags & ZEND_VM_EXT_MASK)) {
    switch (opline->extended_value) {
      case ZEND_EVAL:
        fprintf(stderr, " (eval)");
        break;
      case ZEND_INCLUDE:
        fprintf(stderr, " (include)");
        break;
      case ZEND_INCLUDE_ONCE:
        fprintf(stderr, " (include_once)");
        break;
      case ZEND_REQUIRE:
        fprintf(stderr, " (require)");
        break;
      case ZEND_REQUIRE_ONCE:
        fprintf(stderr, " (require_once)");
        break;
      default:
        fprintf(stderr, " (\?\?\?)");
        break;
    }
  } else if (ZEND_VM_EXT_SRC == (flags & ZEND_VM_EXT_MASK)) {
    if (opline->extended_value == ZEND_RETURNS_VALUE) {
      fprintf(stderr, " (value)");
    } else if (opline->extended_value & ZEND_RETURNS_FUNCTION) {
      fprintf(stderr, " (function)");
    }
  } else {
    if (ZEND_VM_EXT_VAR_FETCH & flags) {
      if (opline->extended_value & ZEND_FETCH_GLOBAL) {
        fprintf(stderr, " (global)");
      } else if (opline->extended_value & ZEND_FETCH_LOCAL) {
        fprintf(stderr, " (local)");
      } else if (opline->extended_value & ZEND_FETCH_GLOBAL_LOCK) {
        fprintf(stderr, " (global+lock)");
      }
    }
    if (ZEND_VM_EXT_ISSET & flags) {
      if (!(opline->extended_value & ZEND_ISEMPTY)) {
        fprintf(stderr, " (isset)");
      } else {
        fprintf(stderr, " (empty)");
      }
    }
    if (ZEND_VM_EXT_ARRAY_INIT & flags) {
      fprintf(stderr, " %u", opline->extended_value >> ZEND_ARRAY_SIZE_SHIFT);
      if (!(opline->extended_value & ZEND_ARRAY_NOT_PACKED)) {
        fprintf(stderr, " (packed)");
      }
    }
    if (ZEND_VM_EXT_REF & flags) {
      if (opline->extended_value & ZEND_ARRAY_ELEMENT_REF) {
        fprintf(stderr, " (ref)");
      }
    }
    if ((ZEND_VM_EXT_DIM_WRITE|ZEND_VM_EXT_FETCH_REF) & flags) {
      uint32_t obj_flags = opline->extended_value & ZEND_FETCH_OBJ_FLAGS;
      if (obj_flags == ZEND_FETCH_REF) {
        fprintf(stderr, " (ref)");
      } else if (obj_flags == ZEND_FETCH_DIM_WRITE) {
        fprintf(stderr, " (dim write)");
      }
    }
  }

  if (opline->op1_type == IS_CONST) {
    zend_dump_const(CRT_CONSTANT(opline->op1));
  } else if (opline->op1_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
    if (ssa_op) {
      int ssa_var_num = ssa_op->op1_use;
      if (ssa_var_num >= 0) {
        fprintf(stderr, " ");
        zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var), dump_flags);
      } else if (ssa_op->op1_def < 0) {
        fprintf(stderr, " ");
        zend_dump_var(op_array, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var));
      }
    } else {
      fprintf(stderr, " ");
      zend_dump_var(op_array, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var));
    }
    if (ssa_op) {
      int ssa_var_num = ssa_op->op1_def;
      if (ssa_var_num >= 0) {
        fprintf(stderr, " -> ");
        zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op1_type, EX_VAR_TO_NUM(opline->op1.var), dump_flags);
      }
    }
  } else {
    uint32_t op1_flags = ZEND_VM_OP1_FLAGS(flags);
    if (ZEND_VM_OP_JMP_ADDR == (op1_flags & ZEND_VM_OP_MASK)) {
      if (b) {
        fprintf(stderr, " BB%d", b->successors[n++]);
      } else {
        fprintf(stderr, " %04u", (uint32_t)(OP_JMP_ADDR(opline, opline->op1) - op_array->opcodes));
      }
    } else {
      zend_dump_unused_op(opline, opline->op1, op1_flags);
    }
  }

  if (opline->op2_type == IS_CONST) {
    zval *op = CRT_CONSTANT(opline->op2);
    if (
      opline->opcode == ZEND_SWITCH_LONG
      || opline->opcode == ZEND_SWITCH_STRING
      || opline->opcode == ZEND_MATCH
    ) {
      HashTable *jumptable = Z_ARRVAL_P(op);
      zend_string *key;
      zend_ulong num_key;
      zval *zv;
      ZEND_HASH_FOREACH_KEY_VAL(jumptable, num_key, key, zv) {
        if (key) {
          fprintf(stderr, " \"%s\":", ZSTR_VAL(key));
        } else {
          fprintf(stderr, " " ZEND_LONG_FMT ":", num_key);
        }
        if (b) {
          fprintf(stderr, " BB%d,", b->successors[n++]);
        } else {
          fprintf(stderr, " %04u,", (uint32_t)ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, Z_LVAL_P(zv)));
        }
      } ZEND_HASH_FOREACH_END();
      fprintf(stderr, " default:");
    } else {
      zend_dump_const(op);
    }
  } else if (opline->op2_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
    if (ssa_op) {
      int ssa_var_num = ssa_op->op2_use;
      if (ssa_var_num >= 0) {
        fprintf(stderr, " ");
        zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var), dump_flags);
      } else if (ssa_op->op2_def < 0) {
        fprintf(stderr, " ");
        zend_dump_var(op_array, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var));
      }
    } else {
      fprintf(stderr, " ");
      zend_dump_var(op_array, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var));
    }
    if (ssa_op) {
      int ssa_var_num = ssa_op->op2_def;
      if (ssa_var_num >= 0) {
        fprintf(stderr, " -> ");
        zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->op2_type, EX_VAR_TO_NUM(opline->op2.var), dump_flags);
      }
    }
  } else {
    uint32_t op2_flags = ZEND_VM_OP2_FLAGS(flags);
    if (ZEND_VM_OP_JMP_ADDR == (op2_flags & ZEND_VM_OP_MASK)) {
      if (opline->opcode != ZEND_CATCH || !(opline->extended_value & ZEND_LAST_CATCH)) {
        if (b) {
          fprintf(stderr, " BB%d", b->successors[n++]);
        } else {
          fprintf(stderr, " %04u", (uint32_t)(OP_JMP_ADDR(opline, opline->op2) - op_array->opcodes));
        }
      }
    } else {
      zend_dump_unused_op(opline, opline->op2, op2_flags);
    }
  }

  if (ZEND_VM_EXT_JMP_ADDR == (flags & ZEND_VM_EXT_MASK)) {
    if (b) {
      fprintf(stderr, " BB%d", b->successors[n++]);
    } else {
      fprintf(stderr, " %04u", (uint32_t)ZEND_OFFSET_TO_OPLINE_NUM(op_array, opline, opline->extended_value));
    }
  }
  if (opline->result_type == IS_CONST) {
    zend_dump_const(CRT_CONSTANT(opline->result));
#if 0
  } else if (opline->result_type & IS_SMART_BRANCH_JMPZ) {
    fprintf(stderr, " jmpz");
  } else if (opline->result_type & IS_SMART_BRANCH_JMPNZ) {
    fprintf(stderr, " jmpnz");
#endif
  } else if (ssa_op && ssa_op->result_use >= 0) {
    if (opline->result_type & (IS_CV|IS_VAR|IS_TMP_VAR)) {
      if (ssa_op) {
        int ssa_var_num = ssa_op->result_use;
        if (ssa_var_num >= 0) {
          fprintf(stderr, " ");
          zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
        }
      } else {
        fprintf(stderr, " ");
        zend_dump_var(op_array, opline->result_type, EX_VAR_TO_NUM(opline->result.var));
      }
      if (ssa_op) {
        int ssa_var_num = ssa_op->result_def;
        if (ssa_var_num >= 0) {
          fprintf(stderr, " -> ");
          zend_dump_ssa_var(op_array, ssa, ssa_var_num, opline->result_type, EX_VAR_TO_NUM(opline->result.var), dump_flags);
        }
      }
    }
  }
}

ZEND_API void zend_dump_op_line(const zend_op_array *op_array, const zend_basic_block *b, const zend_op *opline, uint32_t dump_flags, const void *data)
{
  int len = 0;
  const zend_ssa *ssa = NULL;
  zend_ssa_op *ssa_op = NULL;

  if (dump_flags & ZEND_DUMP_LINE_NUMBERS) {
    fprintf(stderr, "L%04u ", opline->lineno);
  }

  len = fprintf(stderr, "%04u", (uint32_t)(opline - op_array->opcodes));
  fprintf(stderr, "%*c", 5-len, ' ');

  if (dump_flags & ZEND_DUMP_SSA) {
    ssa = (const zend_ssa*)data;
    if (ssa && ssa->ops) {
      ssa_op = &ssa->ops[opline - op_array->opcodes];
    }
  }

  zend_dump_op(op_array, b, opline, dump_flags, ssa, ssa_op);
  fprintf(stderr, "\n");
}

static void zend_dump_block_info(const zend_cfg *cfg, int n, uint32_t dump_flags)
{
  zend_basic_block *b = cfg->blocks + n;

  if (n > 0) {
    fprintf(stderr, "\n");
  }
  fprintf(stderr, "BB%d:\n     ;", n);
  if (b->flags & ZEND_BB_START) {
    fprintf(stderr, " start");
  }
  if (b->flags & ZEND_BB_RECV_ENTRY) {
    fprintf(stderr, " recv");
  }
  if (b->flags & ZEND_BB_FOLLOW) {
    fprintf(stderr, " follow");
  }
  if (b->flags & ZEND_BB_TARGET) {
    fprintf(stderr, " target");
  }
  if (b->flags & ZEND_BB_EXIT) {
    fprintf(stderr, " exit");
  }
  if (b->flags & (ZEND_BB_ENTRY|ZEND_BB_RECV_ENTRY)) {
    fprintf(stderr, " entry");
  }
  if (b->flags & ZEND_BB_TRY) {
    fprintf(stderr, " try");
  }
  if (b->flags & ZEND_BB_CATCH) {
    fprintf(stderr, " catch");
  }
  if (b->flags & ZEND_BB_FINALLY) {
    fprintf(stderr, " finally");
  }
  if (b->flags & ZEND_BB_FINALLY_END) {
    fprintf(stderr, " finally_end");
  }
  if (!(dump_flags & ZEND_DUMP_HIDE_UNREACHABLE) && !(b->flags & ZEND_BB_REACHABLE)) {
    fprintf(stderr, " unreachable");
  }
  if (b->flags & ZEND_BB_UNREACHABLE_FREE) {
    fprintf(stderr, " unreachable_free");
  }
  if (b->flags & ZEND_BB_LOOP_HEADER) {
    fprintf(stderr, " loop_header");
  }
  if (b->flags & ZEND_BB_IRREDUCIBLE_LOOP) {
    fprintf(stderr, " irreducible");
  }
  if (b->len != 0) {
    fprintf(stderr, " lines=[%d-%d]", b->start, b->start + b->len - 1);
  } else {
    fprintf(stderr, " empty");
  }
  fprintf(stderr, "\n");

  if (b->predecessors_count) {
    int *p = cfg->predecessors + b->predecessor_offset;
    int *end = p + b->predecessors_count;

    fprintf(stderr, "     ; from=(BB%d", *p);
    for (p++; p < end; p++) {
      fprintf(stderr, ", BB%d", *p);
    }
    fprintf(stderr, ")\n");
  }

  if (b->successors_count > 0) {
    int s;
    fprintf(stderr, "     ; to=(BB%d", b->successors[0]);
    for (s = 1; s < b->successors_count; s++) {
      fprintf(stderr, ", BB%d", b->successors[s]);
    }
    fprintf(stderr, ")\n");
  }

  if (b->idom >= 0) {
    fprintf(stderr, "     ; idom=BB%d\n", b->idom);
  }
  if (b->level >= 0) {
    fprintf(stderr, "     ; level=%d\n", b->level);
  }
  if (b->loop_header >= 0) {
    fprintf(stderr, "     ; loop_header=%d\n", b->loop_header);
  }
  if (b->children >= 0) {
    int j = b->children;
    fprintf(stderr, "     ; children=(BB%d", j);
    j = cfg->blocks[j].next_child;
    while (j >= 0) {
      fprintf(stderr, ", BB%d", j);
      j = cfg->blocks[j].next_child;
    }
    fprintf(stderr, ")\n");
  }
}

static void zend_dump_block_header(const zend_cfg *cfg, const zend_op_array *op_array, const zend_ssa *ssa, int n, uint32_t dump_flags)
{
  zend_dump_block_info(cfg, n, dump_flags);
  if (ssa && ssa->blocks && ssa->blocks[n].phis) {
    zend_ssa_phi *p = ssa->blocks[n].phis;

    do {
      int j;

      fprintf(stderr, "     ");
      zend_dump_ssa_var(op_array, ssa, p->ssa_var, 0, p->var, dump_flags);
      if (p->pi < 0) {
        fprintf(stderr, " = Phi(");
        for (j = 0; j < cfg->blocks[n].predecessors_count; j++) {
          if (j > 0) {
            fprintf(stderr, ", ");
          }
          zend_dump_ssa_var(op_array, ssa, p->sources[j], 0, p->var, dump_flags);
        }
        fprintf(stderr, ")\n");
      } else {
        fprintf(stderr, " = Pi<BB%d>(", p->pi);
        zend_dump_ssa_var(op_array, ssa, p->sources[0], 0, p->var, dump_flags);
        fprintf(stderr, " &");
        if (p->has_range_constraint) {
          zend_dump_range_constraint(op_array, ssa, &p->constraint.range, dump_flags);
        } else {
          zend_dump_type_constraint(op_array, ssa, &p->constraint.type, dump_flags);
        }
        fprintf(stderr, ")\n");
      }
      p = p->next;
    } while (p);
  }
}

void zend_dump_op_array_name(const zend_op_array *op_array)
{
  if (op_array->function_name) {
    if (op_array->scope && op_array->scope->name) {
      fprintf(stderr, "%s::%s", op_array->scope->name->val, op_array->function_name->val);
    } else {
      fprintf(stderr, "%s", op_array->function_name->val);
    }
  } else {
    fprintf(stderr, "%s", "$_main");
  }
}

ZEND_API void zend_dump_op_array(const zend_op_array *op_array, uint32_t dump_flags, const char *msg, const void *data)
{
  const zend_cfg *cfg = NULL;
  const zend_ssa *ssa = NULL;
  zend_func_info *func_info = NULL;
  uint32_t func_flags = 0;

  if (dump_flags & (ZEND_DUMP_CFG|ZEND_DUMP_SSA)) {
    cfg = (const zend_cfg*)data;
    if (!cfg->blocks) {
      cfg = data = NULL;
    }
  }
  if (dump_flags & ZEND_DUMP_SSA) {
    ssa = (const zend_ssa*)data;
  }

  func_info = ZEND_FUNC_INFO(op_array);
  if (func_info) {
    func_flags = func_info->flags;
  }

  fprintf(stderr, "\n");
  zend_dump_op_array_name(op_array);
  fprintf(stderr, ":\n     ; (lines=%d, args=%d",
    op_array->last,
    op_array->num_args);
  fprintf(stderr, ", vars=%d, tmps=%d", op_array->last_var, op_array->T);
  if (ssa) {
    fprintf(stderr, ", ssa_vars=%d", ssa->vars_count);
  }
  if (func_flags & ZEND_FUNC_INDIRECT_VAR_ACCESS) {
    fprintf(stderr, ", dynamic");
  }
  if (func_flags & ZEND_FUNC_RECURSIVE) {
    fprintf(stderr, ", recursive");
    if (func_flags & ZEND_FUNC_RECURSIVE_DIRECTLY) {
      fprintf(stderr, " directly");
    }
    if (func_flags & ZEND_FUNC_RECURSIVE_INDIRECTLY) {
      fprintf(stderr, " indirectly");
    }
  }
  if (func_flags & ZEND_FUNC_IRREDUCIBLE) {
    fprintf(stderr, ", irreducible");
  }
  if (func_flags & ZEND_FUNC_NO_LOOPS) {
    fprintf(stderr, ", no_loops");
  }
  if (func_flags & ZEND_FUNC_HAS_EXTENDED_STMT) {
    fprintf(stderr, ", extended_stmt");
  }
  if (func_flags & ZEND_FUNC_HAS_EXTENDED_FCALL) {
    fprintf(stderr, ", extended_fcall");
  }
//TODO: this is useful only for JIT???
#if 0
  if (info->flags & ZEND_JIT_FUNC_NO_IN_MEM_CVS) {
    fprintf(stderr, ", no_in_mem_cvs");
  }
  if (info->flags & ZEND_JIT_FUNC_NO_USED_ARGS) {
    fprintf(stderr, ", no_used_args");
  }
  if (info->flags & ZEND_JIT_FUNC_NO_SYMTAB) {
    fprintf(stderr, ", no_symtab");
  }
  if (info->flags & ZEND_JIT_FUNC_NO_FRAME) {
    fprintf(stderr, ", no_frame");
  }
  if (info->flags & ZEND_JIT_FUNC_INLINE) {
    fprintf(stderr, ", inline");
  }
#endif
  fprintf(stderr, ")\n");
  if (msg) {
    fprintf(stderr, "     ; (%s)\n", msg);
  }
  fprintf(stderr, "     ; %s:%u-%u\n", op_array->filename->val, op_array->line_start, op_array->line_end);

  if (func_info) {
    fprintf(stderr, "     ; return ");
    zend_dump_type_info(func_info->return_info.type, func_info->return_info.ce, func_info->return_info.is_instanceof, dump_flags);
    zend_dump_range(&func_info->return_info.range);
    fprintf(stderr, "\n");
  }

  if (ssa && ssa->var_info) {
    for (uint32_t i = 0; i < op_array->last_var; i++) {
      fprintf(stderr, "     ; ");
      zend_dump_ssa_var(op_array, ssa, i, IS_CV, i, dump_flags);
      fprintf(stderr, "\n");
    }
  }

  if (cfg) {
    int n;
    zend_basic_block *b;

    for (n = 0; n < cfg->blocks_count; n++) {
      b = cfg->blocks + n;
      if (!(dump_flags & ZEND_DUMP_HIDE_UNREACHABLE) || (b->flags & ZEND_BB_REACHABLE)) {
        const zend_op *opline;
        const zend_op *end;

        zend_dump_block_header(cfg, op_array, ssa, n, dump_flags);
        opline = op_array->opcodes + b->start;
        end = opline + b->len;
        while (opline < end) {
          zend_dump_op_line(op_array, b, opline, dump_flags, data);
          opline++;
        }
      }
    }
    if (op_array->last_live_range && (dump_flags & ZEND_DUMP_LIVE_RANGES)) {
      fprintf(stderr, "LIVE RANGES:\n");
      for (uint32_t i = 0; i < op_array->last_live_range; i++) {
        fprintf(stderr,
          "     %u: %04u - %04u ",
          EX_VAR_TO_NUM(op_array->live_range[i].var & ~ZEND_LIVE_MASK),
          op_array->live_range[i].start,
          op_array->live_range[i].end);
        switch (op_array->live_range[i].var & ZEND_LIVE_MASK) {
          case ZEND_LIVE_TMPVAR:
            fprintf(stderr, "(tmp/var)\n");
            break;
          case ZEND_LIVE_LOOP:
            fprintf(stderr, "(loop)\n");
            break;
          case ZEND_LIVE_SILENCE:
            fprintf(stderr, "(silence)\n");
            break;
          case ZEND_LIVE_ROPE:
            fprintf(stderr, "(rope)\n");
            break;
          case ZEND_LIVE_NEW:
            fprintf(stderr, "(new)\n");
            break;
        }
      }
    }
    if (op_array->last_try_catch) {
      fprintf(stderr, "EXCEPTION TABLE:\n");
      for (uint32_t i = 0; i < op_array->last_try_catch; i++) {
        fprintf(stderr, "        BB%u",
          cfg->map[op_array->try_catch_array[i].try_op]);
        if (op_array->try_catch_array[i].catch_op) {
          fprintf(stderr, ", BB%u",
            cfg->map[op_array->try_catch_array[i].catch_op]);
        } else {
          fprintf(stderr, ", -");
        }
        if (op_array->try_catch_array[i].finally_op) {
          fprintf(stderr, ", BB%u",
            cfg->map[op_array->try_catch_array[i].finally_op]);
        } else {
          fprintf(stderr, ", -");
        }
        if (op_array->try_catch_array[i].finally_end) {
          fprintf(stderr, ", BB%u\n",
            cfg->map[op_array->try_catch_array[i].finally_end]);
        } else {
          fprintf(stderr, ", -\n");
        }
      }
    }
  } else {
    const zend_op *opline = op_array->opcodes;
    const zend_op *end = opline + op_array->last;

    while (opline < end) {
      zend_dump_op_line(op_array, NULL, opline, dump_flags, data);
      opline++;
    }
    if (op_array->last_live_range && (dump_flags & ZEND_DUMP_LIVE_RANGES)) {
      fprintf(stderr, "LIVE RANGES:\n");
      for (uint32_t i = 0; i < op_array->last_live_range; i++) {
        fprintf(stderr,
          "     %u: %04u - %04u ",
          EX_VAR_TO_NUM(op_array->live_range[i].var & ~ZEND_LIVE_MASK),
          op_array->live_range[i].start,
          op_array->live_range[i].end);
        switch (op_array->live_range[i].var & ZEND_LIVE_MASK) {
          case ZEND_LIVE_TMPVAR:
            fprintf(stderr, "(tmp/var)\n");
            break;
          case ZEND_LIVE_LOOP:
            fprintf(stderr, "(loop)\n");
            break;
          case ZEND_LIVE_SILENCE:
            fprintf(stderr, "(silence)\n");
            break;
          case ZEND_LIVE_ROPE:
            fprintf(stderr, "(rope)\n");
            break;
          case ZEND_LIVE_NEW:
            fprintf(stderr, "(new)\n");
            break;
        }
      }
    }
    if (op_array->last_try_catch) {
      fprintf(stderr, "EXCEPTION TABLE:\n");
      for (uint32_t i = 0; i < op_array->last_try_catch; i++) {
        fprintf(stderr,
          "     %04u",
          op_array->try_catch_array[i].try_op);

        if (op_array->try_catch_array[i].catch_op) {
          fprintf(stderr,
            ", %04u",
            op_array->try_catch_array[i].catch_op);
        } else {
          fprintf(stderr, ", -");
        }
        if (op_array->try_catch_array[i].finally_op) {
          fprintf(stderr,
            ", %04u",
            op_array->try_catch_array[i].finally_op);
        } else {
          fprintf(stderr, ", -");
        }
        if (op_array->try_catch_array[i].finally_end) {
          fprintf(stderr,
            ", %04u\n",
            op_array->try_catch_array[i].finally_end);
        } else {
          fprintf(stderr, ", -\n");
        }
      }
    }
  }
}

void zend_dump_dominators(const zend_op_array *op_array, const zend_cfg *cfg)
{
  int j;

  fprintf(stderr, "\nDOMINATORS-TREE for \"");
  zend_dump_op_array_name(op_array);
  fprintf(stderr, "\"\n");
  for (j = 0; j < cfg->blocks_count; j++) {
    zend_basic_block *b = cfg->blocks + j;
    if (b->flags & ZEND_BB_REACHABLE) {
      zend_dump_block_info(cfg, j, 0);
    }
  }
}

void zend_dump_ssa_variables(const zend_op_array *op_array, const zend_ssa *ssa, uint32_t dump_flags)
{
  int j;

  if (ssa->vars) {
    fprintf(stderr, "\nSSA Variable for \"");
    zend_dump_op_array_name(op_array);
    fprintf(stderr, "\"\n");

    for (j = 0; j < ssa->vars_count; j++) {
      fprintf(stderr, "    ");
      zend_dump_ssa_var(op_array, ssa, j, IS_CV, ssa->vars[j].var, dump_flags);
      if (ssa->vars[j].scc >= 0) {
        if (ssa->vars[j].scc_entry) {
          fprintf(stderr, " *");
        }  else {
          fprintf(stderr, "  ");
        }
        fprintf(stderr, "SCC=%d", ssa->vars[j].scc);
      }
      fprintf(stderr, "\n");
    }
  }
}

static void zend_dump_var_set(const zend_op_array *op_array, const char *name, zend_bitset set)
{
  bool first = true;
  uint32_t i;

  fprintf(stderr, "    ; %s = {", name);
  for (i = 0; i < op_array->last_var + op_array->T; i++) {
    if (zend_bitset_in(set, i)) {
      if (first) {
        first = false;
      } else {
        fprintf(stderr, ", ");
      }
      zend_dump_var(op_array, IS_CV, i);
    }
  }
  fprintf(stderr, "}\n");
}

void zend_dump_dfg(const zend_op_array *op_array, const zend_cfg *cfg, const zend_dfg *dfg)
{
  int j;
  fprintf(stderr, "\nVariable Liveness for \"");
  zend_dump_op_array_name(op_array);
  fprintf(stderr, "\"\n");

  for (j = 0; j < cfg->blocks_count; j++) {
    fprintf(stderr, "  BB%d:\n", j);
    zend_dump_var_set(op_array, "def", DFG_BITSET(dfg->def, dfg->size, j));
    zend_dump_var_set(op_array, "use", DFG_BITSET(dfg->use, dfg->size, j));
    zend_dump_var_set(op_array, "in ", DFG_BITSET(dfg->in,  dfg->size, j));
    zend_dump_var_set(op_array, "out", DFG_BITSET(dfg->out, dfg->size, j));
  }
}

void zend_dump_phi_placement(const zend_op_array *op_array, const zend_ssa *ssa)
{
  int j;
  zend_ssa_block *ssa_blocks = ssa->blocks;
  int blocks_count = ssa->cfg.blocks_count;

  fprintf(stderr, "\nSSA Phi() Placement for \"");
  zend_dump_op_array_name(op_array);
  fprintf(stderr, "\"\n");
  for (j = 0; j < blocks_count; j++) {
    if (ssa_blocks && ssa_blocks[j].phis) {
      zend_ssa_phi *p = ssa_blocks[j].phis;
      int first = 1;

      fprintf(stderr, "  BB%d:\n", j);
      if (p->pi >= 0) {
        fprintf(stderr, "    ; pi={");
      } else {
        fprintf(stderr, "    ; phi={");
      }
      do {
        if (first) {
          first = 0;
        } else {
          fprintf(stderr, ", ");
        }
        zend_dump_var(op_array, IS_CV, p->var);
        p = p->next;
      } while (p);
      fprintf(stderr, "}\n");
    }
  }
}

Coverage Report

Created: 2026-01-18 06:48