1 /* 2 +----------------------------------------------------------------------+ 3 | Zend Engine, DFG - Data Flow Graph | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) The PHP Group | 6 +----------------------------------------------------------------------+ 7 | This source file is subject to version 3.01 of the PHP license, | 8 | that is bundled with this package in the file LICENSE, and is | 9 | available through the world-wide-web at the following url: | 10 | https://www.php.net/license/3_01.txt | 11 | If you did not receive a copy of the PHP license and are unable to | 12 | obtain it through the world-wide-web, please send a note to | 13 | license@php.net so we can mail you a copy immediately. | 14 +----------------------------------------------------------------------+ 15 | Authors: Dmitry Stogov <dmitry@php.net> | 16 +----------------------------------------------------------------------+ 17 */ 18 19 #ifndef ZEND_DFG_H 20 #define ZEND_DFG_H 21 22 #include "zend_bitset.h" 23 #include "zend_cfg.h" 24 25 typedef struct _zend_dfg { 26 int vars; 27 uint32_t size; 28 zend_bitset tmp; 29 zend_bitset def; 30 zend_bitset use; 31 zend_bitset in; 32 zend_bitset out; 33 } zend_dfg; 34 35 #define DFG_BITSET(set, set_size, block_num) \ 36 ((set) + ((block_num) * (set_size))) 37 38 #define DFG_SET(set, set_size, block_num, var_num) \ 39 zend_bitset_incl(DFG_BITSET(set, set_size, block_num), (var_num)) 40 41 #define DFG_ISSET(set, set_size, block_num, var_num) \ 42 zend_bitset_in(DFG_BITSET(set, set_size, block_num), (var_num)) 43 44 BEGIN_EXTERN_C() 45 46 int zend_build_dfg(const zend_op_array *op_array, const zend_cfg *cfg, zend_dfg *dfg, uint32_t build_flags); 47 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); 48 49 END_EXTERN_C() 50 51 #endif /* ZEND_DFG_H */ 52
