/* +----------------------------------------------------------------------+ | 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 | +----------------------------------------------------------------------+ */ #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() int 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 */