diff options
Diffstat (limited to 'Zend/Optimizer/zend_dfg.h')
| -rw-r--r-- | Zend/Optimizer/zend_dfg.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Zend/Optimizer/zend_dfg.h b/Zend/Optimizer/zend_dfg.h new file mode 100644 index 0000000000..6ec92be307 --- /dev/null +++ b/Zend/Optimizer/zend_dfg.h @@ -0,0 +1,51 @@ +/* + +----------------------------------------------------------------------+ + | 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: | + | http://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() + +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 */ |