52 lines
2.0 KiB
C
52 lines
2.0 KiB
C
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/*
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+----------------------------------------------------------------------+
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| Zend Engine, DFG - Data Flow Graph |
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Dmitry Stogov <dmitry@php.net> |
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+----------------------------------------------------------------------+
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*/
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#ifndef ZEND_DFG_H
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#define ZEND_DFG_H
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#include "zend_bitset.h"
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#include "zend_cfg.h"
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typedef struct _zend_dfg {
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int vars;
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uint32_t size;
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zend_bitset tmp;
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zend_bitset def;
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zend_bitset use;
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zend_bitset in;
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zend_bitset out;
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} zend_dfg;
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#define DFG_BITSET(set, set_size, block_num) \
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((set) + ((block_num) * (set_size)))
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#define DFG_SET(set, set_size, block_num, var_num) \
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zend_bitset_incl(DFG_BITSET(set, set_size, block_num), (var_num))
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#define DFG_ISSET(set, set_size, block_num, var_num) \
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zend_bitset_in(DFG_BITSET(set, set_size, block_num), (var_num))
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BEGIN_EXTERN_C()
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void zend_build_dfg(const zend_op_array *op_array, const zend_cfg *cfg, zend_dfg *dfg, uint32_t build_flags);
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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);
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END_EXTERN_C()
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#endif /* ZEND_DFG_H */
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