text: /*
     +----------------------------------------------------------------------+
     | Zend Engine                                                          |
     +----------------------------------------------------------------------+
     | Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
     +----------------------------------------------------------------------+
     | This source file is subject to version 2.00 of the Zend license,     |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.zend.com/license/2_00.txt.                                |
     | If you did not receive a copy of the Zend license and are unable to  |
     | obtain it through the world-wide-web, please send a note to          |
     | license@zend.com so we can mail you a copy immediately.              |
     +----------------------------------------------------------------------+
     | Authors: Andi Gutmans <andi@zend.com>                                |
     |          Zeev Suraski <zeev@zend.com>                                |
     +----------------------------------------------------------------------+
  */
  
  /* $Id$ */
  
  #define ZEND_INTENSIVE_DEBUGGING 0
  
  #include <stdio.h>
  #include <signal.h>
  
  #include "zend.h"
  #include "zend_compile.h"
  #include "zend_execute.h"
  #include "zend_API.h"
  #include "zend_ptr_stack.h"
  #include "zend_constants.h"
  #include "zend_extensions.h"
  #include "zend_ini.h"
  #include "zend_exceptions.h"
  #include "zend_interfaces.h"
  #include "zend_closures.h"
  #include "zend_generators.h"
  #include "zend_vm.h"
  #include "zend_dtrace.h"
  
  /* Virtual current working directory support */
  #include "zend_virtual_cwd.h"
  
  #define _CONST_CODE  0
  #define _TMP_CODE    1
  #define _VAR_CODE    2
  #define _UNUSED_CODE 3
  #define _CV_CODE     4
  
  typedef int (*incdec_t)(zval *);
  
  #define get_zval_ptr(op_type, node, ex, should_free, type) _get_zval_ptr(op_type, node, ex, should_free, type TSRMLS_CC)
  #define get_zval_ptr_ptr(op_type, node, ex, should_free, type) _get_zval_ptr_ptr(op_type, node, ex, should_free, type TSRMLS_CC)
  #define get_obj_zval_ptr(op_type, node, ex, should_free, type) _get_obj_zval_ptr(op_type, node, ex, should_free, type TSRMLS_CC)
  #define get_obj_zval_ptr_ptr(op_type, node, ex, should_free, type) _get_obj_zval_ptr_ptr(op_type, node, ex, should_free, type TSRMLS_CC)
  
  /* Prototypes */
  static void zend_extension_statement_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
  static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
  static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC);
  
  #define RETURN_VALUE_USED(opline) (!((opline)->result_type & EXT_TYPE_UNUSED))
  
  #define EX_T(offset) (*EX_TMP_VAR(execute_data, offset))
  #define EX_CV(var)   (*EX_CV_NUM(execute_data, var))
  
  #define TEMP_VAR_STACK_LIMIT 2000
  
  static zend_always_inline void zend_pzval_unlock_func(zval *z, zend_free_op *should_free, int unref TSRMLS_DC)
  {
  	if (!Z_DELREF_P(z)) {
  		Z_SET_REFCOUNT_P(z, 1);
  		Z_UNSET_ISREF_P(z);
  		should_free->var = z;
  /*		should_free->is_var = 1; */
  	} else {
  		should_free->var = 0;
  		if (unref && Z_ISREF_P(z) && Z_REFCOUNT_P(z) == 1) {
  			Z_UNSET_ISREF_P(z);
  		}
  	}
  }
  
  static zend_always_inline void zend_pzval_unlock_free_func(zval *z TSRMLS_DC)
  {
  	if (!Z_DELREF_P(z)) {
  		ZEND_ASSERT(z != &EG(uninitialized_zval));
  		GC_REMOVE_ZVAL_FROM_BUFFER(z);
  		zval_dtor(z);
  		efree(z);
  	}
  }
  
  #undef zval_ptr_dtor
  #define zval_ptr_dtor(pzv) i_zval_ptr_dtor(*(pzv) ZEND_FILE_LINE_CC TSRMLS_CC)
  #define zval_ptr_dtor_nogc(pzv) i_zval_ptr_dtor_nogc(*(pzv) ZEND_FILE_LINE_CC TSRMLS_CC)
  
  #define PZVAL_UNLOCK(z, f) zend_pzval_unlock_func(z, f, 1 TSRMLS_CC)
  #define PZVAL_UNLOCK_EX(z, f, u) zend_pzval_unlock_func(z, f, u TSRMLS_CC)
  #define PZVAL_UNLOCK_FREE(z) zend_pzval_unlock_free_func(z TSRMLS_CC)
  #define PZVAL_LOCK(z) Z_ADDREF_P((z))
  #define SELECTIVE_PZVAL_LOCK(pzv, opline)	if (RETURN_VALUE_USED(opline)) { PZVAL_LOCK(pzv); }
  
  #define EXTRACT_ZVAL_PTR(t) do {				\
  		temp_variable *__t = (t);				\
  		__t->var.ptr = *__t->var.ptr_ptr;		\
  		__t->var.ptr_ptr = &__t->var.ptr;		\
  		if (!PZVAL_IS_REF(__t->var.ptr) && 		\
  		    Z_REFCOUNT_P(__t->var.ptr) > 2) {	\
  			SEPARATE_ZVAL(__t->var.ptr_ptr);	\
  		}										\
  	} while (0)
  
  #define AI_SET_PTR(t, val) do {				\
  		temp_variable *__t = (t);			\
  		__t->var.ptr = (val);				\
  		__t->var.ptr_ptr = &__t->var.ptr;	\
  	} while (0)
  
  #define FREE_OP(should_free) \
  	if (should_free.var) { \
  		if ((zend_uintptr_t)should_free.var & 1L) { \
  			zval_dtor((zval*)((zend_uintptr_t)should_free.var & ~1L)); \
  		} else { \
  			zval_ptr_dtor_nogc(&should_free.var); \
  		} \
  	}
  
  #define FREE_OP_IF_VAR(should_free) \
  	if (should_free.var != NULL && (((zend_uintptr_t)should_free.var & 1L) == 0)) { \
  		zval_ptr_dtor_nogc(&should_free.var); \
  	}
  
  #define FREE_OP_VAR_PTR(should_free) \
  	if (should_free.var) { \
  		zval_ptr_dtor_nogc(&should_free.var); \
  	}
  
  #define TMP_FREE(z) (zval*)(((zend_uintptr_t)(z)) | 1L)
  
  #define IS_TMP_FREE(should_free) ((zend_uintptr_t)should_free.var & 1L)
  
  #define MAKE_REAL_ZVAL_PTR(val) \
  	do { \
  		zval *_tmp; \
  		ALLOC_ZVAL(_tmp); \
  		INIT_PZVAL_COPY(_tmp, (val)); \
  		(val) = _tmp; \
  	} while (0)
  
  /* End of zend_execute_locks.h */
  
  #define CV_DEF_OF(i) (EG(active_op_array)->vars[i])
  
  #define CTOR_CALL_BIT    0x1
  #define CTOR_USED_BIT    0x2
  
  #define IS_CTOR_CALL(ce) (((zend_uintptr_t)(ce)) & CTOR_CALL_BIT)
  #define IS_CTOR_USED(ce) (((zend_uintptr_t)(ce)) & CTOR_USED_BIT)
  
  #define ENCODE_CTOR(ce, used) \
  	((zend_class_entry*)(((zend_uintptr_t)(ce)) | CTOR_CALL_BIT | ((used) ? CTOR_USED_BIT : 0)))
  #define DECODE_CTOR(ce) \
  	((zend_class_entry*)(((zend_uintptr_t)(ce)) & ~(CTOR_CALL_BIT|CTOR_USED_BIT)))
  
  #undef EX
  #define EX(element) execute_data->element
  
  ZEND_API zval** zend_get_compiled_variable_value(const zend_execute_data *execute_data, zend_uint var)
  {
  	return EX_CV(var);
  }
  
  static zend_always_inline zval *_get_zval_ptr_tmp(zend_uint var, const zend_execute_data *execute_data, zend_free_op *should_free TSRMLS_DC)
  {
  	return should_free->var = &EX_T(var).tmp_var;
  }
  
  static zend_always_inline zval *_get_zval_ptr_var(zend_uint var, const zend_execute_data *execute_data, zend_free_op *should_free TSRMLS_DC)
  {
  	zval *ptr = EX_T(var).var.ptr;
  
  	return should_free->var = ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup(zval ***ptr, zend_uint var, int type TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table) ||
  	    zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		switch (type) {
  			case BP_VAR_R:
  			case BP_VAR_UNSET:
  				zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  				/* break missing intentionally */
  			case BP_VAR_IS:
  				return &EG(uninitialized_zval_ptr);
  				break;
  			case BP_VAR_RW:
  				zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  				/* break missing intentionally */
  			case BP_VAR_W:
  				Z_ADDREF(EG(uninitialized_zval));
  				if (!EG(active_symbol_table)) {
  					*ptr = (zval**)EX_CV_NUM(EG(current_execute_data), EG(active_op_array)->last_var + var);
  					**ptr = &EG(uninitialized_zval);
  				} else {
  					zend_hash_quick_update(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, &EG(uninitialized_zval_ptr), sizeof(zval *), (void **)ptr);
  				}
  				break;
  		}
  	}
  	return *ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_R(zval ***ptr, zend_uint var TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table) ||
  	    zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  		return &EG(uninitialized_zval_ptr);
  	}
  	return *ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_UNSET(zval ***ptr, zend_uint var TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table) ||
  	    zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  		return &EG(uninitialized_zval_ptr);
  	}
  	return *ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_IS(zval ***ptr, zend_uint var TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table) ||
  	    zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		return &EG(uninitialized_zval_ptr);
  	}
  	return *ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_RW(zval ***ptr, zend_uint var TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table)) {
  		Z_ADDREF(EG(uninitialized_zval));
  		*ptr = (zval**)EX_CV_NUM(EG(current_execute_data), EG(active_op_array)->last_var + var);
  		**ptr = &EG(uninitialized_zval);
  		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  	} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		Z_ADDREF(EG(uninitialized_zval));
  		zend_hash_quick_update(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, &EG(uninitialized_zval_ptr), sizeof(zval *), (void **)ptr);
  		zend_error(E_NOTICE, "Undefined variable: %s", cv->name);
  	}
  	return *ptr;
  }
  
  static zend_never_inline zval **_get_zval_cv_lookup_BP_VAR_W(zval ***ptr, zend_uint var TSRMLS_DC)
  {
  	zend_compiled_variable *cv = &CV_DEF_OF(var);
  
  	if (!EG(active_symbol_table)) {
  		Z_ADDREF(EG(uninitialized_zval));
  		*ptr = (zval**)EX_CV_NUM(EG(current_execute_data), EG(active_op_array)->last_var + var);
  		**ptr = &EG(uninitialized_zval);
  	} else if (zend_hash_quick_find(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, (void **)ptr)==FAILURE) {
  		Z_ADDREF(EG(uninitialized_zval));
  		zend_hash_quick_update(EG(active_symbol_table), cv->name, cv->name_len+1, cv->hash_value, &EG(uninitialized_zval_ptr), sizeof(zval *), (void **)ptr);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv(zend_uint var, int type TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(EG(current_execute_data), var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_R(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_UNSET(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_IS(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup_BP_VAR_IS(ptr, var TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_RW(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup_BP_VAR_RW(ptr, var TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static zend_always_inline zval *_get_zval_ptr_cv_BP_VAR_W(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return *_get_zval_cv_lookup_BP_VAR_W(ptr, var TSRMLS_CC);
  	}
  	return **ptr;
  }
  
  static inline zval *_get_zval_ptr(int op_type, const znode_op *node, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC)
  {
  /*	should_free->is_var = 0; */
  	switch (op_type) {
  		case IS_CONST:
  			should_free->var = 0;
  			return node->zv;
  			break;
  		case IS_TMP_VAR:
  			should_free->var = TMP_FREE(&EX_T(node->var).tmp_var);
  			return &EX_T(node->var).tmp_var;
  			break;
  		case IS_VAR:
  			return _get_zval_ptr_var(node->var, execute_data, should_free TSRMLS_CC);
  			break;
  		case IS_UNUSED:
  			should_free->var = 0;
  			return NULL;
  			break;
  		case IS_CV:
  			should_free->var = 0;
  			return _get_zval_ptr_cv(node->var, type TSRMLS_CC);
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE()
  	}
  	return NULL;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_var(zend_uint var, const zend_execute_data *execute_data, zend_free_op *should_free TSRMLS_DC)
  {
  	zval** ptr_ptr = EX_T(var).var.ptr_ptr;
  
  	if (EXPECTED(ptr_ptr != NULL)) {
  		PZVAL_UNLOCK(*ptr_ptr, should_free);
  	} else {
  		/* string offset */
  		PZVAL_UNLOCK(EX_T(var).str_offset.str, should_free);
  	}
  	return ptr_ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_var_fast(zend_uint var, const zend_execute_data *execute_data, zend_free_op *should_free TSRMLS_DC)
  {
  	zval** ptr_ptr = EX_T(var).var.ptr_ptr;
  
  	if (EXPECTED(ptr_ptr != NULL)) {
  		should_free->var = *ptr_ptr;
  	} else {
  		/* string offset */
  		should_free->var = EX_T(var).str_offset.str;
  	}
  	return ptr_ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv(zend_uint var, int type TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(EG(current_execute_data), var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup(ptr, var, type TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_R(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup_BP_VAR_R(ptr, var TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_UNSET(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup_BP_VAR_UNSET(ptr, var TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_IS(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup_BP_VAR_IS(ptr, var TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_RW(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup_BP_VAR_RW(ptr, var TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static zend_always_inline zval **_get_zval_ptr_ptr_cv_BP_VAR_W(const zend_execute_data *execute_data, zend_uint var TSRMLS_DC)
  {
  	zval ***ptr = EX_CV_NUM(execute_data, var);
  
  	if (UNEXPECTED(*ptr == NULL)) {
  		return _get_zval_cv_lookup_BP_VAR_W(ptr, var TSRMLS_CC);
  	}
  	return *ptr;
  }
  
  static inline zval **_get_zval_ptr_ptr(int op_type, const znode_op *node, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC)
  {
  	if (op_type == IS_CV) {
  		should_free->var = 0;
  		return _get_zval_ptr_ptr_cv(node->var, type TSRMLS_CC);
  	} else if (op_type == IS_VAR) {
  		return _get_zval_ptr_ptr_var(node->var, execute_data, should_free TSRMLS_CC);
  	} else {
  		should_free->var = 0;
  		return NULL;
  	}
  }
  
  static zend_always_inline zval *_get_obj_zval_ptr_unused(TSRMLS_D)
  {
  	if (EXPECTED(EG(This) != NULL)) {
  		return EG(This);
  	} else {
  		zend_error_noreturn(E_ERROR, "Using $this when not in object context");
  		return NULL;
  	}
  }
  
  static inline zval **_get_obj_zval_ptr_ptr(int op_type, const znode_op *op, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC)
  {
  	if (op_type == IS_UNUSED) {
  		if (EXPECTED(EG(This) != NULL)) {
  			/* this should actually never be modified, _ptr_ptr is modified only when
  			   the object is empty */
  			should_free->var = 0;
  			return &EG(This);
  		} else {
  			zend_error_noreturn(E_ERROR, "Using $this when not in object context");
  		}
  	}
  	return get_zval_ptr_ptr(op_type, op, execute_data, should_free, type);
  }
  
  static zend_always_inline zval **_get_obj_zval_ptr_ptr_unused(TSRMLS_D)
  {
  	if (EXPECTED(EG(This) != NULL)) {
  		return &EG(This);
  	} else {
  		zend_error_noreturn(E_ERROR, "Using $this when not in object context");
  		return NULL;
  	}
  }
  
  static inline zval *_get_obj_zval_ptr(int op_type, znode_op *op, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC)
  {
  	if (op_type == IS_UNUSED) {
  		if (EXPECTED(EG(This) != NULL)) {
  			should_free->var = 0;
  			return EG(This);
  		} else {
  			zend_error_noreturn(E_ERROR, "Using $this when not in object context");
  		}
  	}
  	return get_zval_ptr(op_type, op, execute_data, should_free, type);
  }
  
  static void zend_assign_to_variable_reference(zval **variable_ptr_ptr, zval **value_ptr_ptr TSRMLS_DC)
  {
  	zval *variable_ptr = *variable_ptr_ptr;
  	zval *value_ptr = *value_ptr_ptr;
  
  	if (variable_ptr == &EG(error_zval) || value_ptr == &EG(error_zval)) {
  		variable_ptr_ptr = &EG(uninitialized_zval_ptr);
  	} else if (variable_ptr != value_ptr) {
  		if (!PZVAL_IS_REF(value_ptr)) {
  			/* break it away */
  			Z_DELREF_P(value_ptr);
  			if (Z_REFCOUNT_P(value_ptr)>0) {
  				ALLOC_ZVAL(*value_ptr_ptr);
  				ZVAL_COPY_VALUE(*value_ptr_ptr, value_ptr);
  				value_ptr = *value_ptr_ptr;
  				zendi_zval_copy_ctor(*value_ptr);
  			}
  			Z_SET_REFCOUNT_P(value_ptr, 1);
  			Z_SET_ISREF_P(value_ptr);
  		}
  
  		*variable_ptr_ptr = value_ptr;
  		Z_ADDREF_P(value_ptr);
  
  		zval_ptr_dtor(&variable_ptr);
  	} else if (!Z_ISREF_P(variable_ptr)) {
  		if (variable_ptr_ptr == value_ptr_ptr) {
  			SEPARATE_ZVAL(variable_ptr_ptr);
  		} else if (variable_ptr==&EG(uninitialized_zval)
  			|| Z_REFCOUNT_P(variable_ptr)>2) {
  			/* we need to separate */
  			Z_SET_REFCOUNT_P(variable_ptr, Z_REFCOUNT_P(variable_ptr) - 2);
  			ALLOC_ZVAL(*variable_ptr_ptr);
  			ZVAL_COPY_VALUE(*variable_ptr_ptr, variable_ptr);
  			zval_copy_ctor(*variable_ptr_ptr);
  			*value_ptr_ptr = *variable_ptr_ptr;
  			Z_SET_REFCOUNT_PP(variable_ptr_ptr, 2);
  		}
  		Z_SET_ISREF_PP(variable_ptr_ptr);
  	}
  }
  
  /* this should modify object only if it's empty */
  static inline void make_real_object(zval **object_ptr TSRMLS_DC)
  {
  	if (Z_TYPE_PP(object_ptr) == IS_NULL
  		|| (Z_TYPE_PP(object_ptr) == IS_BOOL && Z_LVAL_PP(object_ptr) == 0)
  		|| (Z_TYPE_PP(object_ptr) == IS_STRING && Z_STRLEN_PP(object_ptr) == 0)
  	) {
  		SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
  		zval_dtor(*object_ptr);
  		object_init(*object_ptr);
  		zend_error(E_WARNING, "Creating default object from empty value");
  	}
  }
  
  ZEND_API char * zend_verify_arg_class_kind(const zend_arg_info *cur_arg_info, ulong fetch_type, const char **class_name, zend_class_entry **pce TSRMLS_DC)
  {
  	*pce = zend_fetch_class(cur_arg_info->class_name, cur_arg_info->class_name_len, (fetch_type | ZEND_FETCH_CLASS_AUTO | ZEND_FETCH_CLASS_NO_AUTOLOAD) TSRMLS_CC);
  
  	*class_name = (*pce) ? (*pce)->name: cur_arg_info->class_name;
  	if (*pce && (*pce)->ce_flags & ZEND_ACC_INTERFACE) {
  		return "implement interface ";
  	} else {
  		return "be an instance of ";
  	}
  }
  
  ZEND_API int zend_verify_arg_error(int error_type, const zend_function *zf, zend_uint arg_num, const char *need_msg, const char *need_kind, const char *given_msg, const char *given_kind TSRMLS_DC)
  {
  	zend_execute_data *ptr = EG(current_execute_data)->prev_execute_data;
  	const char *fname = zf->common.function_name;
  	char *fsep;
  	const char *fclass;
  
  	if (zf->common.scope) {
  		fsep =  "::";
  		fclass = zf->common.scope->name;
  	} else {
  		fsep =  "";
  		fclass = "";
  	}
  
  	if (ptr && ptr->op_array) {
  		zend_error(error_type, "Argument %d passed to %s%s%s() must %s%s, %s%s given, called in %s on line %d and defined", arg_num, fclass, fsep, fname, need_msg, need_kind, given_msg, given_kind, ptr->op_array->filename, ptr->opline->lineno);
  	} else {
  		zend_error(error_type, "Argument %d passed to %s%s%s() must %s%s, %s%s given", arg_num, fclass, fsep, fname, need_msg, need_kind, given_msg, given_kind);
  	}
  	return 0;
  }
  
  static inline int zend_verify_arg_type(zend_function *zf, zend_uint arg_num, zval *arg, ulong fetch_type TSRMLS_DC)
  {
  	zend_arg_info *cur_arg_info;
  	char *need_msg;
  	zend_class_entry *ce;
  
  	if (!zf->common.arg_info) {
  		return 1;
  	}
  
  	if (arg_num <= zf->common.num_args) {
  		cur_arg_info = &zf->common.arg_info[arg_num-1];
  	} else if (zf->common.fn_flags & ZEND_ACC_VARIADIC) {
  		cur_arg_info = &zf->common.arg_info[zf->common.num_args-1];
  	} else {
  		return 1;
  	}
  
  	if (cur_arg_info->class_name) {
  		const char *class_name;
  
  		if (!arg) {
  			need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
  			return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, need_msg, class_name, "none", "" TSRMLS_CC);
  		}
  		if (Z_TYPE_P(arg) == IS_OBJECT) {
  			need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
  			if (!ce || !instanceof_function(Z_OBJCE_P(arg), ce TSRMLS_CC)) {
  				return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, need_msg, class_name, "instance of ", Z_OBJCE_P(arg)->name TSRMLS_CC);
  			}
  		} else if (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null) {
  			need_msg = zend_verify_arg_class_kind(cur_arg_info, fetch_type, &class_name, &ce TSRMLS_CC);
  			return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, need_msg, class_name, zend_zval_type_name(arg), "" TSRMLS_CC);
  		}
  	} else if (cur_arg_info->type_hint) {
  		switch(cur_arg_info->type_hint) {
  			case IS_ARRAY:
  				if (!arg) {
  					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be of the type array", "", "none", "" TSRMLS_CC);
  				}
  
  				if (Z_TYPE_P(arg) != IS_ARRAY && (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null)) {
  					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be of the type array", "", zend_zval_type_name(arg), "" TSRMLS_CC);
  				}
  				break;
  
  			case IS_CALLABLE:
  				if (!arg) {
  					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be callable", "", "none", "" TSRMLS_CC);
  				}
  				if (!zend_is_callable(arg, IS_CALLABLE_CHECK_SILENT, NULL TSRMLS_CC) && (Z_TYPE_P(arg) != IS_NULL || !cur_arg_info->allow_null)) {
  					return zend_verify_arg_error(E_RECOVERABLE_ERROR, zf, arg_num, "be callable", "", zend_zval_type_name(arg), "" TSRMLS_CC);
  				}
  				break;
  
  			default:
  				zend_error(E_ERROR, "Unknown typehint");
  		}
  	}
  	return 1;
  }
  
  static inline void zend_assign_to_object(zval **retval, zval **object_ptr, zval *property_name, int value_type, znode_op *value_op, const zend_execute_data *execute_data, int opcode, const zend_literal *key TSRMLS_DC)
  {
  	zval *object = *object_ptr;
  	zend_free_op free_value;
   	zval *value = get_zval_ptr(value_type, value_op, execute_data, &free_value, BP_VAR_R);
  
  	if (Z_TYPE_P(object) != IS_OBJECT) {
  		if (object == &EG(error_zval)) {
   			if (retval) {
  				*retval = &EG(uninitialized_zval);
  				PZVAL_LOCK(*retval);
  			}
  			FREE_OP(free_value);
  			return;
  		}
  		if (Z_TYPE_P(object) == IS_NULL ||
  		    (Z_TYPE_P(object) == IS_BOOL && Z_LVAL_P(object) == 0) ||
  		    (Z_TYPE_P(object) == IS_STRING && Z_STRLEN_P(object) == 0)) {
  			SEPARATE_ZVAL_IF_NOT_REF(object_ptr);
  			object = *object_ptr;
  			Z_ADDREF_P(object);
  			zend_error(E_WARNING, "Creating default object from empty value");
  			if (Z_REFCOUNT_P(object) == 1) {
  				/* object was removed by error handler, nothing to assign to */
  				zval_ptr_dtor(&object);
  				if (retval) {
  					*retval = &EG(uninitialized_zval);
  					PZVAL_LOCK(*retval);
  				}
  				FREE_OP(free_value);
  				return;
  			}
  			Z_DELREF_P(object);
  			zval_dtor(object);
  			object_init(object);
  		} else {
  			zend_error(E_WARNING, "Attempt to assign property of non-object");
  			if (retval) {
  				*retval = &EG(uninitialized_zval);
  				PZVAL_LOCK(*retval);
  			}
  			FREE_OP(free_value);
  			return;
  		}
  	}
  
  	/* separate our value if necessary */
  	if (value_type == IS_TMP_VAR) {
  		zval *orig_value = value;
  
  		ALLOC_ZVAL(value);
  		ZVAL_COPY_VALUE(value, orig_value);
  		Z_UNSET_ISREF_P(value);
  		Z_SET_REFCOUNT_P(value, 0);
  	} else if (value_type == IS_CONST) {
  		zval *orig_value = value;
  
  		ALLOC_ZVAL(value);
  		ZVAL_COPY_VALUE(value, orig_value);
  		Z_UNSET_ISREF_P(value);
  		Z_SET_REFCOUNT_P(value, 0);
  		zval_copy_ctor(value);
  	}
  
  
  	Z_ADDREF_P(value);
  	if (opcode == ZEND_ASSIGN_OBJ) {
  		if (!Z_OBJ_HT_P(object)->write_property) {
  			zend_error(E_WARNING, "Attempt to assign property of non-object");
  			if (retval) {
  				*retval = &EG(uninitialized_zval);
  				PZVAL_LOCK(&EG(uninitialized_zval));
  			}
  			if (value_type == IS_TMP_VAR) {
  				FREE_ZVAL(value);
  			} else if (value_type == IS_CONST) {
  				zval_ptr_dtor(&value);
  			}
  			FREE_OP(free_value);
  			return;
  		}
  		Z_OBJ_HT_P(object)->write_property(object, property_name, value, key TSRMLS_CC);
  	} else {
  		/* Note:  property_name in this case is really the array index! */
  		if (!Z_OBJ_HT_P(object)->write_dimension) {
  			zend_error_noreturn(E_ERROR, "Cannot use object as array");
  		}
  		Z_OBJ_HT_P(object)->write_dimension(object, property_name, value TSRMLS_CC);
  	}
  
  	if (retval && !EG(exception)) {
  		*retval = value;
  		PZVAL_LOCK(value);
  	}
  	zval_ptr_dtor(&value);
  	FREE_OP_IF_VAR(free_value);
  }
  
  static inline int zend_assign_to_string_offset(const temp_variable *T, const zval *value, int value_type TSRMLS_DC)
  {
  	zval *str = T->str_offset.str;
  	zend_uint offset = T->str_offset.offset;
  	if (Z_TYPE_P(str) == IS_STRING) {
  		if ((int)offset < 0) {
  			zend_error(E_WARNING, "Illegal string offset:  %d", offset);
  			return 0;
  		}
  
  		if (offset >= Z_STRLEN_P(str)) {
  			Z_STRVAL_P(str) = str_erealloc(Z_STRVAL_P(str), offset+1+1);
  			memset(Z_STRVAL_P(str) + Z_STRLEN_P(str), ' ', offset - Z_STRLEN_P(str));
  			Z_STRVAL_P(str)[offset+1] = 0;
  			Z_STRLEN_P(str) = offset+1;
  		} else if (IS_INTERNED(Z_STRVAL_P(str))) {
  			Z_STRVAL_P(str) = estrndup(Z_STRVAL_P(str), Z_STRLEN_P(str));
  		}
  
  		if (Z_TYPE_P(value) != IS_STRING) {
  			zval tmp;
  
  			ZVAL_COPY_VALUE(&tmp, value);
  			if (value_type != IS_TMP_VAR) {
  				zval_copy_ctor(&tmp);
  			}
  			convert_to_string(&tmp);
  			Z_STRVAL_P(str)[offset] = Z_STRVAL(tmp)[0];
  			str_efree(Z_STRVAL(tmp));
  		} else {
  			Z_STRVAL_P(str)[offset] = Z_STRVAL_P(value)[0];
  			if (value_type == IS_TMP_VAR) {
  				/* we can safely free final_value here
  				 * because separation is done only
  				 * in case value_type == IS_VAR */
  				str_efree(Z_STRVAL_P(value));
  			}
  		}
  		/*
  		 * the value of an assignment to a string offset is undefined
  		T(result->u.var).var = &T->str_offset.str;
  		*/
  	}
  	return 1;
  }
  
  
  static inline zval* zend_assign_tmp_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
  {
  	zval *variable_ptr = *variable_ptr_ptr;
  	zval garbage;
  
  	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
  	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
  		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
  		return variable_ptr;
  	}
  
   	if (UNEXPECTED(Z_REFCOUNT_P(variable_ptr) > 1) &&
   	    EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
   	    /* we need to split */
  		Z_DELREF_P(variable_ptr);
  		GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
  		ALLOC_ZVAL(variable_ptr);
  		INIT_PZVAL_COPY(variable_ptr, value);
  		*variable_ptr_ptr = variable_ptr;
  		return variable_ptr;
  	} else {
  		if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
  			/* nothing to destroy */
  			ZVAL_COPY_VALUE(variable_ptr, value);
  		} else {
  			ZVAL_COPY_VALUE(&garbage, variable_ptr);
  			ZVAL_COPY_VALUE(variable_ptr, value);
  			_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
  		}
  		return variable_ptr;
  	}
  }
  
  static inline zval* zend_assign_const_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
  {
  	zval *variable_ptr = *variable_ptr_ptr;
  	zval garbage;
  
  	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
  	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
  		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
  		return variable_ptr;
  	}
  
   	if (UNEXPECTED(Z_REFCOUNT_P(variable_ptr) > 1) &&
   	    EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
  		/* we need to split */
  		Z_DELREF_P(variable_ptr);
  		GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
  		ALLOC_ZVAL(variable_ptr);
  		INIT_PZVAL_COPY(variable_ptr, value);
  		zval_copy_ctor(variable_ptr);
  		*variable_ptr_ptr = variable_ptr;
  		return variable_ptr;
   	} else {
  		if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
  			/* nothing to destroy */
  			ZVAL_COPY_VALUE(variable_ptr, value);
  			zendi_zval_copy_ctor(*variable_ptr);
  		} else {
  			ZVAL_COPY_VALUE(&garbage, variable_ptr);
  			ZVAL_COPY_VALUE(variable_ptr, value);
  			zendi_zval_copy_ctor(*variable_ptr);
  			_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
  		}
  		return variable_ptr;
  	}
  }
  
  static inline zval* zend_assign_to_variable(zval **variable_ptr_ptr, zval *value TSRMLS_DC)
  {
  	zval *variable_ptr = *variable_ptr_ptr;
  	zval garbage;
  
  	if (Z_TYPE_P(variable_ptr) == IS_OBJECT &&
  	    UNEXPECTED(Z_OBJ_HANDLER_P(variable_ptr, set) != NULL)) {
  		Z_OBJ_HANDLER_P(variable_ptr, set)(variable_ptr_ptr, value TSRMLS_CC);
  		return variable_ptr;
  	}
  
   	if (EXPECTED(!PZVAL_IS_REF(variable_ptr))) {
  		if (Z_REFCOUNT_P(variable_ptr)==1) {
  			if (UNEXPECTED(variable_ptr == value)) {
  				return variable_ptr;
  			} else if (EXPECTED(!PZVAL_IS_REF(value))) {
  				Z_ADDREF_P(value);
  				*variable_ptr_ptr = value;
  				ZEND_ASSERT(variable_ptr != &EG(uninitialized_zval));
  				GC_REMOVE_ZVAL_FROM_BUFFER(variable_ptr);
  				zval_dtor(variable_ptr);
  				efree(variable_ptr);
  				return value;
  			} else {
  				goto copy_value;
  			}
  		} else { /* we need to split */
  			Z_DELREF_P(variable_ptr);
  			GC_ZVAL_CHECK_POSSIBLE_ROOT(variable_ptr);
  			if (PZVAL_IS_REF(value)) {
  				ALLOC_ZVAL(variable_ptr);
  				*variable_ptr_ptr = variable_ptr;
  				INIT_PZVAL_COPY(variable_ptr, value);
  				zval_copy_ctor(variable_ptr);
  				return variable_ptr;
  			} else {
  				*variable_ptr_ptr = value;
  				Z_ADDREF_P(value);
  				return value;
  			}
  		}
   	} else {
  		if (EXPECTED(variable_ptr != value)) {
  copy_value:
  			if (EXPECTED(Z_TYPE_P(variable_ptr) <= IS_BOOL)) {
  				/* nothing to destroy */
  				ZVAL_COPY_VALUE(variable_ptr, value);
  				zendi_zval_copy_ctor(*variable_ptr);
  			} else {
  				ZVAL_COPY_VALUE(&garbage, variable_ptr);
  				ZVAL_COPY_VALUE(variable_ptr, value);
  				zendi_zval_copy_ctor(*variable_ptr);
  				_zval_dtor_func(&garbage ZEND_FILE_LINE_CC);
  			}
  		}
  		return variable_ptr;
  	}
  }
  
  /* Utility Functions for Extensions */
  static void zend_extension_statement_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
  {
  	if (extension->statement_handler) {
  		extension->statement_handler(op_array);
  	}
  }
  
  
  static void zend_extension_fcall_begin_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
  {
  	if (extension->fcall_begin_handler) {
  		extension->fcall_begin_handler(op_array);
  	}
  }
  
  
  static void zend_extension_fcall_end_handler(const zend_extension *extension, zend_op_array *op_array TSRMLS_DC)
  {
  	if (extension->fcall_end_handler) {
  		extension->fcall_end_handler(op_array);
  	}
  }
  
  
  static inline HashTable *zend_get_target_symbol_table(int fetch_type TSRMLS_DC)
  {
  	switch (fetch_type) {
  		case ZEND_FETCH_LOCAL:
  			if (!EG(active_symbol_table)) {
  				zend_rebuild_symbol_table(TSRMLS_C);
  			}
  			return EG(active_symbol_table);
  			break;
  		case ZEND_FETCH_GLOBAL:
  		case ZEND_FETCH_GLOBAL_LOCK:
  			return &EG(symbol_table);
  			break;
  		case ZEND_FETCH_STATIC:
  			if (!EG(active_op_array)->static_variables) {
  				ALLOC_HASHTABLE(EG(active_op_array)->static_variables);
  				zend_hash_init(EG(active_op_array)->static_variables, 2, NULL, ZVAL_PTR_DTOR, 0);
  			}
  			return EG(active_op_array)->static_variables;
  			break;
  		EMPTY_SWITCH_DEFAULT_CASE()
  	}
  	return NULL;
  }
  
  static inline zval **zend_fetch_dimension_address_inner(HashTable *ht, const zval *dim, int dim_type, int type TSRMLS_DC)
  {
  	zval **retval;
  	char *offset_key;
  	int offset_key_length;
  	ulong hval;
  
  	switch (dim->type) {
  		case IS_NULL:
  			offset_key = "";
  			offset_key_length = 0;
  			hval = zend_inline_hash_func("", 1);
  			goto fetch_string_dim;
  
  		case IS_STRING:
  
  			offset_key = dim->value.str.val;
  			offset_key_length = dim->value.str.len;
  
  			if (dim_type == IS_CONST) {
  				hval = Z_HASH_P(dim);
  			} else {
  				ZEND_HANDLE_NUMERIC_EX(offset_key, offset_key_length+1, hval, goto num_index);
  				hval = str_hash(offset_key, offset_key_length);
  			}
  fetch_string_dim:
  			if (zend_hash_quick_find(ht, offset_key, offset_key_length+1, hval, (void **) &retval) == FAILURE) {
  				switch (type) {
  					case BP_VAR_R:
  						zend_error(E_NOTICE, "Undefined index: %s", offset_key);
  						/* break missing intentionally */
  					case BP_VAR_UNSET:
  					case BP_VAR_IS:
  						retval = &EG(uninitialized_zval_ptr);
  						break;
  					case BP_VAR_RW:
  						zend_error(E_NOTICE,"Undefined index: %s", offset_key);
  						/* break missing intentionally */
  					case BP_VAR_W: {
  							zval *new_zval = &EG(uninitialized_zval);
  
  							Z_ADDREF_P(new_zval);
  							zend_hash_quick_update(ht, offset_key, offset_key_length+1, hval, &new_zval, sizeof(zval *), (void **) &retval);
  						}
  						break;
  				}
  			}
  			break;
  		case IS_DOUBLE:
  			hval = zend_dval_to_lval(Z_DVAL_P(dim));
  			goto num_index;
  		case IS_RESOURCE:
  			zend_error(E_STRICT, "Resource ID#%ld used as offset, casting to integer (%ld)", Z_LVAL_P(dim), Z_LVAL_P(dim));
  			/* Fall Through */
  		case IS_BOOL:
  		case IS_LONG:
  			hval = Z_LVAL_P(dim);
  num_index:
  			if (zend_hash_index_find(ht, hval, (void **) &retval) == FAILURE) {
  				switch (type) {
  					case BP_VAR_R:
  						zend_error(E_NOTICE,"Undefined offset: %ld", hval);
  						/* break missing intentionally */
  					case BP_VAR_UNSET:
  					case BP_VAR_IS:
  						retval = &EG(uninitialized_zval_ptr);
  						break;
  					case BP_VAR_RW:
  						zend_error(E_NOTICE,"Undefined offset: %ld", hval);
  						/* break missing intentionally */
  					case BP_VAR_W: {
  						zval *new_zval = &EG(uninitialized_zval);
  
  						Z_ADDREF_P(new_zval);
  						zend_hash_index_update(ht, hval, &new_zval, sizeof(zval *), (void **) &retval);
  					}
  					break;
  				}
  			}
  			break;
  
  		default:
  			zend_error(E_WARNING, "Illegal offset type");
  			return (type == BP_VAR_W || type == BP_VAR_RW) ?
  				&EG(error_zval_ptr) : &EG(uninitialized_zval_ptr);
  	}
  	return retval;
  }
  
  static void zend_fetch_dimension_address(temp_variable *result, zval **container_ptr, zval *dim, int dim_type, int type TSRMLS_DC)
  {
  	zval *container = *container_ptr;
  	zval **retval;
  
  	switch (Z_TYPE_P(container)) {
  
  		case IS_ARRAY:
  			if (type != BP_VAR_UNSET && Z_REFCOUNT_P(container)>1 && !PZVAL_IS_REF(container)) {
  				SEPARATE_ZVAL(container_ptr);
  				container = *container_ptr;
  			}
  fetch_from_array:
  			if (dim == NULL) {
  				zval *new_zval = &EG(uninitialized_zval);
  
  				Z_ADDREF_P(new_zval);
  				if (zend_hash_next_index_insert(Z_ARRVAL_P(container), &new_zval, sizeof(zval *), (void **) &retval) == FAILURE) {
  					zend_error(E_WARNING, "Cannot add element to the array as the next element is already occupied");
  					retval = &EG(error_zval_ptr);
  					Z_DELREF_P(new_zval);
  				}
  			} else {
  				retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type TSRMLS_CC);
  			}
  			result->var.ptr_ptr = retval;
  			PZVAL_LOCK(*retval);
  			return;
  			break;
  
  		case IS_NULL:
  			if (container == &EG(error_zval)) {
  				result->var.ptr_ptr = &EG(error_zval_ptr);
  				PZVAL_LOCK(EG(error_zval_ptr));
  			} else if (type != BP_VAR_UNSET) {
  convert_to_array:
  				if (!PZVAL_IS_REF(container)) {
  					SEPARATE_ZVAL(container_ptr);
  					container = *container_ptr;
  				}
  				zval_dtor(container);
  				array_init(container);
  				goto fetch_from_array;
  			} else {
  				/* for read-mode only */
  				result->var.ptr_ptr = &EG(uninitialized_zval_ptr);
  				PZVAL_LOCK(EG(uninitialized_zval_ptr));
  			}
  			return;
  			break;
  
  		case IS_STRING: {
  				zval tmp;
  
  				if (type != BP_VAR_UNSET && Z_STRLEN_P(container)==0) {
  					goto convert_to_array;
  				}
  				if (dim == NULL) {
  					zend_error_noreturn(E_ERROR, "[] operator not supported for strings");
  				}
  
  				if (type != BP_VAR_UNSET) {
  					SEPARATE_ZVAL_IF_NOT_REF(container_ptr);
  				}
  
  				if (Z_TYPE_P(dim) != IS_LONG) {
  
  					switch(Z_TYPE_P(dim)) {
  						/* case IS_LONG: */
  						case IS_STRING:
  							if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
  								break;
  							}
  							if (type != BP_VAR_UNSET) {
  								zend_error(E_WARNING, "Illegal string offset '%s'", dim->value.str.val);
  							}
  
  							break;
  						case IS_DOUBLE:
  						case IS_NULL:
  						case IS_BOOL:
  							zend_error(E_NOTICE, "String offset cast occurred");
  							break;
  						default:
  							zend_error(E_WARNING, "Illegal offset type");
  							break;
  					}
  
  					tmp = *dim;
  					zval_copy_ctor(&tmp);
  					convert_to_long(&tmp);
  					dim = &tmp;
  				}
  				container = *container_ptr;
  				result->str_offset.str = container;
  				PZVAL_LOCK(container);
  				result->str_offset.offset = Z_LVAL_P(dim);
  				result->str_offset.ptr_ptr = NULL;
  				return;
  			}
  			break;
  
  		case IS_OBJECT:
  			if (!Z_OBJ_HT_P(container)->read_dimension) {
  				zend_error_noreturn(E_ERROR, "Cannot use object as array");
  			} else {
  				zval *overloaded_result;
  
  				if (dim_type == IS_TMP_VAR) {
  					zval *orig = dim;
  					MAKE_REAL_ZVAL_PTR(dim);
  					ZVAL_NULL(orig);
  				}
  				overloaded_result = Z_OBJ_HT_P(container)->read_dimension(container, dim, type TSRMLS_CC);
  
  				if (overloaded_result) {
  					if (!Z_ISREF_P(overloaded_result)) {
  						if (Z_REFCOUNT_P(overloaded_result) > 0) {
  							zval *tmp = overloaded_result;
  
  							ALLOC_ZVAL(overloaded_result);
  							ZVAL_COPY_VALUE(overloaded_result, tmp);
  							zval_copy_ctor(overloaded_result);
  							Z_UNSET_ISREF_P(overloaded_result);
  							Z_SET_REFCOUNT_P(overloaded_result, 0);
  						}
  						if (Z_TYPE_P(overloaded_result) != IS_OBJECT) {
  							zend_class_entry *ce = Z_OBJCE_P(container);
  							zend_error(E_NOTICE, "Indirect modification of overloaded element of %s has no effect", ce->name);
  						}
  					}
  					AI_SET_PTR(result, overloaded_result);
  					PZVAL_LOCK(overloaded_result);
  				} else {
  					result->var.ptr_ptr = &EG(error_zval_ptr);
  					PZVAL_LOCK(EG(error_zval_ptr));
  				}
  				if (dim_type == IS_TMP_VAR) {
  					zval_ptr_dtor(&dim);
  				}
  			}
  			return;
  			break;
  
  		case IS_BOOL:
  			if (type != BP_VAR_UNSET && Z_LVAL_P(container)==0) {
  				goto convert_to_array;
  			}
  			/* break missing intentionally */
  
  		default:
  			if (type == BP_VAR_UNSET) {
  				zend_error(E_WARNING, "Cannot unset offset in a non-array variable");
  				result->var.ptr_ptr = &EG(uninitialized_zval_ptr);
  				PZVAL_LOCK(EG(uninitialized_zval_ptr));
  			} else {
  				zend_error(E_WARNING, "Cannot use a scalar value as an array");
  				result->var.ptr_ptr = &EG(error_zval_ptr);
  				PZVAL_LOCK(EG(error_zval_ptr));
  			}
  			break;
  	}
  }
  
  static void zend_fetch_dimension_address_read(temp_variable *result, zval *container, zval *dim, int dim_type, int type TSRMLS_DC)
  {
  	zval **retval;
  
  	switch (Z_TYPE_P(container)) {
  
  		case IS_ARRAY:
  			retval = zend_fetch_dimension_address_inner(Z_ARRVAL_P(container), dim, dim_type, type TSRMLS_CC);
  			result->var.ptr = *retval;
  			PZVAL_LOCK(*retval);
  			return;
  
  		case IS_NULL:
  			result->var.ptr = &EG(uninitialized_zval);
  			PZVAL_LOCK(&EG(uninitialized_zval));
  			return;
  
  		case IS_STRING: {
  				zval tmp;
  				zval *ptr;
  
  				if (Z_TYPE_P(dim) != IS_LONG) {
  					switch(Z_TYPE_P(dim)) {
  						/* case IS_LONG: */
  						case IS_STRING:
  							if (IS_LONG == is_numeric_string(Z_STRVAL_P(dim), Z_STRLEN_P(dim), NULL, NULL, -1)) {
  								break;
  							}
  							if (type != BP_VAR_IS) {
  								zend_error(E_WARNING, "Illegal string offset '%s'", dim->value.str.val);
  							}
  							break;
  						case IS_DOUBLE:
  						case IS_NULL:
  						case IS_BOOL:
  							if (type != BP_VAR_IS) {
  								zend_error(E_NOTICE, "String offset cast occurred");
  							}
  							break;
  						default:
  							zend_error(E_WARNING, "Illegal offset type");
  							break;
  					}
  
  					ZVAL_COPY_VALUE(&tmp, dim);
  					zval_copy_ctor(&tmp);
  					convert_to_long(&tmp);
  					dim = &tmp;
  				}
  
  				ALLOC_ZVAL(ptr);
  				INIT_PZVAL(ptr);
  				Z_TYPE_P(ptr) = IS_STRING;
  
  				if (Z_LVAL_P(dim) < 0 || Z_STRLEN_P(container) <= Z_LVAL_P(dim)) {
  					if (type != BP_VAR_IS) {
  						zend_error(E_NOTICE, "Uninitialized string offset: %ld", Z_LVAL_P(dim));
  					}
  					Z_STRVAL_P(ptr) = STR_EMPTY_ALLOC();
  					Z_STRLEN_P(ptr) = 0;
  				} else {
  					Z_STRVAL_P(ptr) = (char*)emalloc(2);
  					Z_STRVAL_P(ptr)[0] = Z_STRVAL_P(container)[Z_LVAL_P(dim)];
  					Z_STRVAL_P(ptr)[1] = 0;
  					Z_STRLEN_P(ptr) = 1;
  				}
  				result->var.ptr = ptr;
  				return;
  			}
  			break;
  
  		case IS_OBJECT:
  			if (!Z_OBJ_HT_P(container)->read_dimension) {
  				zend_error_noreturn(E_ERROR, "Cannot use object as array");
  			} else {
  				zval *overloaded_result;
  
  				if (dim_type == IS_TMP_VAR) {
  					zval *orig = dim;
  					MAKE_REAL_ZVAL_PTR(dim);
  					ZVAL_NULL(orig);
  				}
  				overloaded_result = Z_OBJ_HT_P(container)->read_dimension(container, dim, type TSRMLS_CC);
  
  				if (result) {
  					if (overloaded_result) {
  						result->var.ptr = overloaded_result;
  						PZVAL_LOCK(overloaded_result);
  					} else {
  						result->var.ptr = &EG(uninitialized_zval);
  						PZVAL_LOCK(&EG(uninitialized_zval));
  					}
  				}
  				if (dim_type == IS_TMP_VAR) {
  					zval_ptr_dtor(&dim);
  				}
  			}
  			return;
  
  		default:
  			result->var.ptr = &EG(uninitialized_zval);
  			PZVAL_LOCK(&EG(uninitialized_zval));
  			return;
  	}
  }
  
  static void zend_fetch_property_address(temp_variable *result, zval **container_ptr, zval *prop_ptr, const zend_literal *key, int type TSRMLS_DC)
  {
  	zval *container = *container_ptr;;
  
  	if (Z_TYPE_P(container) != IS_OBJECT) {
  		if (container == &EG(error_zval)) {
  			result->var.ptr_ptr = &EG(error_zval_ptr);
  			PZVAL_LOCK(EG(error_zval_ptr));
  			return;
  		}
  
  		/* this should modify object only if it's empty */
  		if (type != BP_VAR_UNSET &&
  		    ((Z_TYPE_P(container) == IS_NULL ||
  		     (Z_TYPE_P(container) == IS_BOOL && Z_LVAL_P(container)==0) ||
  		     (Z_TYPE_P(container) == IS_STRING && Z_STRLEN_P(container)==0)))) {
  			if (!PZVAL_IS_REF(container)) {
  				SEPARATE_ZVAL(container_ptr);
  				container = *container_ptr;
  			}
  			object_init(container);
  		} else {
  			zend_error(E_WARNING, "Attempt to modify property of non-object");
  			result->var.ptr_ptr = &EG(error_zval_ptr);
  			PZVAL_LOCK(EG(error_zval_ptr));
  			return;
  		}
  	}
  
  	if (Z_OBJ_HT_P(container)->get_property_ptr_ptr) {
  		zval **ptr_ptr = Z_OBJ_HT_P(container)->get_property_ptr_ptr(container, prop_ptr, type, key TSRMLS_CC);
  		if (NULL == ptr_ptr) {
  			zval *ptr;
  
  			if (Z_OBJ_HT_P(container)->read_property &&
  				(ptr = Z_OBJ_HT_P(container)->read_property(container, prop_ptr, type, key TSRMLS_CC)) != NULL) {
  				AI_SET_PTR(result, ptr);
  				PZVAL_LOCK(ptr);
  			} else {
  				zend_error_noreturn(E_ERROR, "Cannot access undefined property for object with overloaded property access");
  			}
  		} else {
  			result->var.ptr_ptr = ptr_ptr;
  			PZVAL_LOCK(*ptr_ptr);
  		}
  	} else if (Z_OBJ_HT_P(container)->read_property) {
  		zval *ptr = Z_OBJ_HT_P(container)->read_property(container, prop_ptr, type, key TSRMLS_CC);
  
  		AI_SET_PTR(result, ptr);
  		PZVAL_LOCK(ptr);
  	} else {
  		zend_error(E_WARNING, "This object doesn't support property references");
  		result->var.ptr_ptr = &EG(error_zval_ptr);
  		PZVAL_LOCK(EG(error_zval_ptr));
  	}
  }
  
  static inline zend_brk_cont_element* zend_brk_cont(int nest_levels, int array_offset, const zend_op_array *op_array, const zend_execute_data *execute_data TSRMLS_DC)
  {
  	int original_nest_levels = nest_levels;
  	zend_brk_cont_element *jmp_to;
  
  	do {
  		if (array_offset==-1) {
  			zend_error_noreturn(E_ERROR, "Cannot break/continue %d level%s", original_nest_levels, (original_nest_levels == 1) ? "" : "s");
  		}
  		jmp_to = &op_array->brk_cont_array[array_offset];
  		if (nest_levels>1) {
  			zend_op *brk_opline = &op_array->opcodes[jmp_to->brk];
  
  			switch (brk_opline->opcode) {
  				case ZEND_SWITCH_FREE:
  					if (!(brk_opline->extended_value & EXT_TYPE_FREE_ON_RETURN)) {
  						zval_ptr_dtor(&EX_T(brk_opline->op1.var).var.ptr);
  					}
  					break;
  				case ZEND_FREE:
  					if (!(brk_opline->extended_value & EXT_TYPE_FREE_ON_RETURN)) {
  						zendi_zval_dtor(EX_T(brk_opline->op1.var).tmp_var);
  					}
  					break;
  			}
  		}
  		array_offset = jmp_to->parent;
  	} while (--nest_levels > 0);
  	return jmp_to;
  }
  
  #if ZEND_INTENSIVE_DEBUGGING
  
  #define CHECK_SYMBOL_TABLES()														\
  	zend_hash_apply(&EG(symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC);	\
  	if (&EG(symbol_table)!=EG(active_symbol_table)) {								\
  		zend_hash_apply(EG(active_symbol_table), (apply_func_t) zend_check_symbol TSRMLS_CC);	\
  	}
  
  static int zend_check_symbol(zval **pz TSRMLS_DC)
  {
  	if (Z_TYPE_PP(pz) > 9) {
  		fprintf(stderr, "Warning!  %x has invalid type!\n", *pz);
  /* See http://support.microsoft.com/kb/190351 */
  #ifdef PHP_WIN32
  		fflush(stderr);
  #endif
  	} else if (Z_TYPE_PP(pz) == IS_ARRAY) {
  		zend_hash_apply(Z_ARRVAL_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC);
  	} else if (Z_TYPE_PP(pz) == IS_OBJECT) {
  
  		/* OBJ-TBI - doesn't support new object model! */
  		zend_hash_apply(Z_OBJPROP_PP(pz), (apply_func_t) zend_check_symbol TSRMLS_CC);
  	}
  
  	return 0;
  }
  
  
  #else
  #define CHECK_SYMBOL_TABLES()
  #endif
  
  ZEND_API opcode_handler_t *zend_opcode_handlers;
  
  ZEND_API void execute_internal(zend_execute_data *execute_data_ptr, zend_fcall_info *fci, int return_value_used TSRMLS_DC)
  {
  	if (fci != NULL) {
  		execute_data_ptr->function_state.function->internal_function.handler(
  			fci->param_count, *fci->retval_ptr_ptr, fci->retval_ptr_ptr,
  			fci->object_ptr, 1 TSRMLS_CC
  		);
  	} else {
  		zval **return_value_ptr = &EX_TMP_VAR(execute_data_ptr, execute_data_ptr->opline->result.var)->var.ptr;
  		execute_data_ptr->function_state.function->internal_function.handler(
  			execute_data_ptr->opline->extended_value, *return_value_ptr, return_value_ptr,
  			execute_data_ptr->object, return_value_used TSRMLS_CC
  		);
  	}
  }
  
  void zend_clean_and_cache_symbol_table(HashTable *symbol_table TSRMLS_DC) /* {{{ */
  {
  	if (EG(symtable_cache_ptr) >= EG(symtable_cache_limit)) {
  		zend_hash_destroy(symbol_table);
  		FREE_HASHTABLE(symbol_table);
  	} else {
  		/* clean before putting into the cache, since clean
  		   could call dtors, which could use cached hash */
  		zend_hash_clean(symbol_table);
  		*(++EG(symtable_cache_ptr)) = symbol_table;
  	}
  }
  /* }}} */
  
  static zend_always_inline void i_free_compiled_variables(zend_execute_data *execute_data TSRMLS_DC) /* {{{ */
  {
  	zval ***cv = EX_CV_NUM(execute_data, 0);
  	zval ***end = cv + EX(op_array)->last_var;
  	while (cv != end) {
  		if (*cv) {
  			zval_ptr_dtor(*cv);
  		}
  		cv++;
   	}
  }
  /* }}} */
  
  void zend_free_compiled_variables(zend_execute_data *execute_data TSRMLS_DC) /* {{{ */
  {
  	i_free_compiled_variables(execute_data TSRMLS_CC);
  }
  /* }}} */
  
  /*
   * Stack Frame Layout (the whole stack frame is allocated at once)
   * ==================
   *
   *                             +========================================+
   *                             | zend_execute_data                      |<---+
   *                             |     EX(function_state).arguments       |--+ |
   *                             |  ...                                   |  | |
   *                             | ARGUMENT [1]                           |  | |
   *                             | ...                                    |  | |
   *                             | ARGUMENT [ARGS_NUMBER]                 |  | |
   *                             | ARGS_NUMBER                            |<-+ |
   *                             +========================================+    |
   *                                                                           |
   *                             +========================================+    |
   *                             | TMP_VAR[op_arrat->T-1]                 |    |
   *                             | ...                                    |    |
   *     EX_TMP_VAR_NUM(0) ----> | TMP_VAR[0]                             |    |
   *                             +----------------------------------------+    |
   * EG(current_execute_data) -> | zend_execute_data                      |    |
   *                             |     EX(prev_execute_data)              |----+
   *                             +----------------------------------------+
   *     EX_CV_NUM(0) ---------> | CV[0]                                  |--+
   *                             | ...                                    |  |
   *                             | CV[op_array->last_var-1]               |  |
   *                             +----------------------------------------+  |
   *                             | Optional slot for CV[0] zval*          |<-+
   *                             | ...                                    |
   *                             | ...for CV [op_array->last_var-1] zval* |
   *                             +----------------------------------------+
   *           EX(call_slots) -> | CALL_SLOT[0]                           |
   *                             | ...                                    |
   *                             | CALL_SLOT[op_array->nested_calls-1]    |
   *                             +----------------------------------------+
   * zend_vm_stack_frame_base -> | ARGUMENTS STACK [0]                    |
   *                             | ...                                    |
   * zend_vm_stack_top --------> | ...                                    |
   *                             | ...                                    |
   *                             | ARGUMENTS STACK [op_array->used_stack] |
   *                             +----------------------------------------+
   */
  
  static zend_always_inline zend_execute_data *i_create_execute_data_from_op_array(zend_op_array *op_array, zend_bool nested TSRMLS_DC) /* {{{ */
  {
  	zend_execute_data *execute_data;
  
  	/*
  	 * When allocating the execute_data, memory for compiled variables and
  	 * temporary variables is also allocated before and after the actual
  	 * zend_execute_data struct. In addition we also allocate space to store
  	 * information about syntactically nested called functions and actual
  	 * parameters. op_array->last_var specifies the number of compiled
  	 * variables and op_array->T is the number of temporary variables. If there
  	 * is no symbol table, then twice as much memory is allocated for compiled
  	 * variables. In that case the first half contains zval**s and the second
  	 * half the actual zval*s (which would otherwise be in the symbol table).
  	 */
  	size_t execute_data_size = ZEND_MM_ALIGNED_SIZE(sizeof(zend_execute_data));
  	size_t CVs_size = ZEND_MM_ALIGNED_SIZE(sizeof(zval **) * op_array->last_var * (EG(active_symbol_table) ? 1 : 2));
  	size_t Ts_size = ZEND_MM_ALIGNED_SIZE(sizeof(temp_variable)) * op_array->T;
  	size_t call_slots_size = ZEND_MM_ALIGNED_SIZE(sizeof(call_slot)) * op_array->nested_calls;
  	size_t stack_size = ZEND_MM_ALIGNED_SIZE(sizeof(zval*)) * op_array->used_stack;
  	size_t total_size = execute_data_size + Ts_size + CVs_size + call_slots_size + stack_size;
  
  	/*
  	 * Normally the execute_data is allocated on the VM stack (because it does
  	 * not actually do any allocation and thus is faster). For generators
  	 * though this behavior would be suboptimal, because the (rather large)
  	 * structure would have to be copied back and forth every time execution is
  	 * suspended or resumed. That's why for generators the execution context
  	 * is allocated using a separate VM stack, thus allowing to save and
  	 * restore it simply by replacing a pointer. The same segment also keeps
  	 * a copy of previous execute_data and passed parameters.
  	 */
  	if (UNEXPECTED((op_array->fn_flags & ZEND_ACC_GENERATOR) != 0)) {
  		/* Prepend the regular stack frame with a copy of prev_execute_data
  		 * and the passed arguments
  		 */
  		int args_count = zend_vm_stack_get_args_count_ex(EG(current_execute_data));
  		size_t args_size = ZEND_MM_ALIGNED_SIZE(sizeof(zval*)) * (args_count + 1);
  
  		total_size += args_size + execute_data_size;
  
  		EG(argument_stack) = zend_vm_stack_new_page((total_size + (sizeof(void*) - 1)) / sizeof(void*));
  		EG(argument_stack)->prev = NULL;
  		execute_data = (zend_execute_data*)((char*)ZEND_VM_STACK_ELEMETS(EG(argument_stack)) + args_size + execute_data_size + Ts_size);
  
  		/* copy prev_execute_data */
  		EX(prev_execute_data) = (zend_execute_data*)((char*)ZEND_VM_STACK_ELEMETS(EG(argument_stack)) + args_size);
  		memset(EX(prev_execute_data), 0, sizeof(zend_execute_data));
  		EX(prev_execute_data)->function_state.function = (zend_function*)op_array;
  		EX(prev_execute_data)->function_state.arguments = (void**)((char*)ZEND_VM_STACK_ELEMETS(EG(argument_stack)) + ZEND_MM_ALIGNED_SIZE(sizeof(zval*)) * args_count);
  
  		/* copy arguments */
  		*EX(prev_execute_data)->function_state.arguments = (void*)(zend_uintptr_t)args_count;
  		if (args_count > 0) {
  			zval **arg_src = (zval**)zend_vm_stack_get_arg_ex(EG(current_execute_data), 1);
  			zval **arg_dst = (zval**)zend_vm_stack_get_arg_ex(EX(prev_execute_data), 1);
  			int i;
  
  			for (i = 0; i < args_count; i++) {
  				arg_dst[i] = arg_src[i];
  				Z_ADDREF_P(arg_dst[i]);
  			}
  		}
  	} else {
  		execute_data = zend_vm_stack_alloc(total_size TSRMLS_CC);
  		execute_data = (zend_execute_data*)((char*)execute_data + Ts_size);
  		EX(prev_execute_data) = EG(current_execute_data);
  	}
  
  	memset(EX_CV_NUM(execute_data, 0), 0, sizeof(zval **) * op_array->last_var);
  
  	EX(call_slots) = (call_slot*)((char *)execute_data + execute_data_size + CVs_size);
  
  
  	EX(op_array) = op_array;
  
  	EG(argument_stack)->top = zend_vm_stack_frame_base(execute_data);
  
  	EX(object) = NULL;
  	EX(current_this) = NULL;
  	EX(old_error_reporting) = NULL;
  	EX(symbol_table) = EG(active_symbol_table);
  	EX(call) = NULL;
  	EG(current_execute_data) = execute_data;
  	EX(nested) = nested;
  	EX(delayed_exception) = NULL;
  
  	if (!op_array->run_time_cache && op_array->last_cache_slot) {
  		op_array->run_time_cache = ecalloc(op_array->last_cache_slot, sizeof(void*));
  	}
  
  	if (op_array->this_var != -1 && EG(This)) {
   		Z_ADDREF_P(EG(This)); /* For $this pointer */
  		if (!EG(active_symbol_table)) {
  			EX_CV(op_array->this_var) = (zval **) EX_CV_NUM(execute_data, op_array->last_var + op_array->this_var);
  			*EX_CV(op_array->this_var) = EG(This);
  		} else {
  			if (zend_hash_add(EG(active_symbol_table), "this", sizeof("this"), &EG(This), sizeof(zval *), (void **) EX_CV_NUM(execute_data, op_array->this_var))==FAILURE) {
  				Z_DELREF_P(EG(This));
  			}
  		}
  	}
  
  	EX(opline) = UNEXPECTED((op_array->fn_flags & ZEND_ACC_INTERACTIVE) != 0) && EG(start_op) ? EG(start_op) : op_array->opcodes;
  	EG(opline_ptr) = &EX(opline);
  
  	EX(function_state).function = (zend_function *) op_array;
  	EX(function_state).arguments = NULL;
  
  	return execute_data;
  }
  /* }}} */
  
  ZEND_API zend_execute_data *zend_create_execute_data_from_op_array(zend_op_array *op_array, zend_bool nested TSRMLS_DC) /* {{{ */
  {
  	return i_create_execute_data_from_op_array(op_array, nested TSRMLS_CC);
  }
  /* }}} */
  
  static zend_always_inline zend_bool zend_is_by_ref_func_arg_fetch(zend_op *opline, call_slot *call TSRMLS_DC) /* {{{ */
  {
  	zend_uint arg_num = opline->extended_value & ZEND_FETCH_ARG_MASK;
  	return ARG_SHOULD_BE_SENT_BY_REF(call->fbc, arg_num);
  }
  /* }}} */
  
  static void **zend_vm_stack_push_args_with_copy(int count TSRMLS_DC) /* {{{ */
  {
  	zend_vm_stack p = EG(argument_stack);
  
  	zend_vm_stack_extend(count + 1 TSRMLS_CC);
  
  	EG(argument_stack)->top += count;
  	*(EG(argument_stack)->top) = (void*)(zend_uintptr_t)count;
  	while (count-- > 0) {
  		void *data = *(--p->top);
  
  		if (UNEXPECTED(p->top == ZEND_VM_STACK_ELEMETS(p))) {
  			zend_vm_stack r = p;
  
  			EG(argument_stack)->prev = p->prev;
  			p = p->prev;
  			efree(r);
  		}
  		*(ZEND_VM_STACK_ELEMETS(EG(argument_stack)) + count) = data;
  	}
  	return EG(argument_stack)->top++;
  }
  /* }}} */
  
  static zend_always_inline void** zend_vm_stack_push_args(int count TSRMLS_DC) /* {{{ */
  {
  	if (UNEXPECTED(EG(argument_stack)->top - ZEND_VM_STACK_ELEMETS(EG(argument_stack)) < count)
  		|| UNEXPECTED(EG(argument_stack)->top == EG(argument_stack)->end)) {
  		return zend_vm_stack_push_args_with_copy(count TSRMLS_CC);
  	}
  	*(EG(argument_stack)->top) = (void*)(zend_uintptr_t)count;
  	return EG(argument_stack)->top++;
  }
  /* }}} */
  
  
  #define ZEND_VM_NEXT_OPCODE() \
  	CHECK_SYMBOL_TABLES() \
  	ZEND_VM_INC_OPCODE(); \
  	ZEND_VM_CONTINUE()
  
  #define ZEND_VM_SET_OPCODE(new_op) \
  	CHECK_SYMBOL_TABLES() \
  	OPLINE = new_op
  
  #define ZEND_VM_JMP(new_op) \
  	if (EXPECTED(!EG(exception))) { \
  		ZEND_VM_SET_OPCODE(new_op); \
  	} else { \
  		LOAD_OPLINE(); \
  	} \
  	ZEND_VM_CONTINUE()
  
  #define ZEND_VM_INC_OPCODE() \
  	OPLINE++
  
  #ifdef __GNUC__
  # define ZEND_VM_GUARD(name) __asm__("#" #name)
  #else
  # define ZEND_VM_GUARD(name)
  #endif
  
  #include "zend_vm_execute.h"
  
  ZEND_API int zend_set_user_opcode_handler(zend_uchar opcode, user_opcode_handler_t handler)
  {
  	if (opcode != ZEND_USER_OPCODE) {
  		if (handler == NULL) {
  			/* restore the original handler */
  			zend_user_opcodes[opcode] = opcode;
  		} else {
  			zend_user_opcodes[opcode] = ZEND_USER_OPCODE;
  		}
  		zend_user_opcode_handlers[opcode] = handler;
  		return SUCCESS;
  	}
  	return FAILURE;
  }
  
  ZEND_API user_opcode_handler_t zend_get_user_opcode_handler(zend_uchar opcode)
  {
  	return zend_user_opcode_handlers[opcode];
  }
  
  ZEND_API zval *zend_get_zval_ptr(int op_type, const znode_op *node, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC) {
  	return get_zval_ptr(op_type, node, execute_data, should_free, type);
  }
  
  ZEND_API zval **zend_get_zval_ptr_ptr(int op_type, const znode_op *node, const zend_execute_data *execute_data, zend_free_op *should_free, int type TSRMLS_DC) {
  	return get_zval_ptr_ptr(op_type, node, execute_data, should_free, type);
  }
  
  /*
   * Local variables:
   * tab-width: 4
   * c-basic-offset: 4
   * indent-tabs-mode: t
   * End:
   */
  