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/*
+----------------------------------------------------------------------+
| Zend Engine, DFG - Data Flow Graph |
+----------------------------------------------------------------------+
| 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> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_DFG_H
#define ZEND_DFG_H
#include "zend_bitset.h"
#include "zend_cfg.h"
typedef struct _zend_dfg {
int vars;
uint32_t size;
zend_bitset tmp;
zend_bitset def;
zend_bitset use;
zend_bitset in;
zend_bitset out;
} zend_dfg;
#define DFG_BITSET(set, set_size, block_num) \
((set) + ((block_num) * (set_size)))
#define DFG_SET(set, set_size, block_num, var_num) \
zend_bitset_incl(DFG_BITSET(set, set_size, block_num), (var_num))
#define DFG_ISSET(set, set_size, block_num, var_num) \
zend_bitset_in(DFG_BITSET(set, set_size, block_num), (var_num))
BEGIN_EXTERN_C()
void zend_build_dfg(const zend_op_array *op_array, const zend_cfg *cfg, zend_dfg *dfg, uint32_t build_flags);
ZEND_API void zend_dfg_add_use_def_op(const zend_op_array *op_array, const zend_op *opline, uint32_t build_flags, zend_bitset use, zend_bitset def);
END_EXTERN_C()
#endif /* ZEND_DFG_H */
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