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/*
+----------------------------------------------------------------------+
| Zend OPcache |
+----------------------------------------------------------------------+
| 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: Andi Gutmans <andi@php.net> |
| Zeev Suraski <zeev@php.net> |
| Stanislav Malyshev <stas@zend.com> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_OPTIMIZER_H
#define ZEND_OPTIMIZER_H
#include "zend.h"
#include "zend_compile.h"
#define ZEND_OPTIMIZER_PASS_1 (1<<0) /* Simple local optimizations */
#define ZEND_OPTIMIZER_PASS_2 (1<<1) /* */
#define ZEND_OPTIMIZER_PASS_3 (1<<2) /* Jump optimization */
#define ZEND_OPTIMIZER_PASS_4 (1<<3) /* INIT_FCALL_BY_NAME -> DO_FCALL */
#define ZEND_OPTIMIZER_PASS_5 (1<<4) /* CFG based optimization */
#define ZEND_OPTIMIZER_PASS_6 (1<<5) /* DFA based optimization */
#define ZEND_OPTIMIZER_PASS_7 (1<<6) /* CALL GRAPH optimization */
#define ZEND_OPTIMIZER_PASS_8 (1<<7) /* SCCP (constant propagation) */
#define ZEND_OPTIMIZER_PASS_9 (1<<8) /* TMP VAR usage */
#define ZEND_OPTIMIZER_PASS_10 (1<<9) /* NOP removal */
#define ZEND_OPTIMIZER_PASS_11 (1<<10) /* Merge equal constants */
#define ZEND_OPTIMIZER_PASS_12 (1<<11) /* Adjust used stack */
#define ZEND_OPTIMIZER_PASS_13 (1<<12) /* Remove unused variables */
#define ZEND_OPTIMIZER_PASS_14 (1<<13) /* DCE (dead code elimination) */
#define ZEND_OPTIMIZER_PASS_15 (1<<14) /* (unsafe) Collect constants */
#define ZEND_OPTIMIZER_PASS_16 (1<<15) /* Inline functions */
#define ZEND_OPTIMIZER_IGNORE_OVERLOADING (1<<16) /* (unsafe) Ignore possibility of operator overloading */
#define ZEND_OPTIMIZER_NARROW_TO_DOUBLE (1<<17) /* try to narrow long constant assignments to double */
#define ZEND_OPTIMIZER_ALL_PASSES 0x7FFFFFFF
#define DEFAULT_OPTIMIZATION_LEVEL "0x7FFEBFFF"
#define ZEND_DUMP_AFTER_PASS_1 ZEND_OPTIMIZER_PASS_1
#define ZEND_DUMP_AFTER_PASS_2 ZEND_OPTIMIZER_PASS_2
#define ZEND_DUMP_AFTER_PASS_3 ZEND_OPTIMIZER_PASS_3
#define ZEND_DUMP_AFTER_PASS_4 ZEND_OPTIMIZER_PASS_4
#define ZEND_DUMP_AFTER_PASS_5 ZEND_OPTIMIZER_PASS_5
#define ZEND_DUMP_AFTER_PASS_6 ZEND_OPTIMIZER_PASS_6
#define ZEND_DUMP_AFTER_PASS_7 ZEND_OPTIMIZER_PASS_7
#define ZEND_DUMP_AFTER_PASS_8 ZEND_OPTIMIZER_PASS_8
#define ZEND_DUMP_AFTER_PASS_9 ZEND_OPTIMIZER_PASS_9
#define ZEND_DUMP_AFTER_PASS_10 ZEND_OPTIMIZER_PASS_10
#define ZEND_DUMP_AFTER_PASS_11 ZEND_OPTIMIZER_PASS_11
#define ZEND_DUMP_AFTER_PASS_12 ZEND_OPTIMIZER_PASS_12
#define ZEND_DUMP_AFTER_PASS_13 ZEND_OPTIMIZER_PASS_13
#define ZEND_DUMP_AFTER_PASS_14 ZEND_OPTIMIZER_PASS_14
#define ZEND_DUMP_BEFORE_OPTIMIZER (1<<16)
#define ZEND_DUMP_AFTER_OPTIMIZER (1<<17)
#define ZEND_DUMP_BEFORE_BLOCK_PASS (1<<18)
#define ZEND_DUMP_AFTER_BLOCK_PASS (1<<19)
#define ZEND_DUMP_BLOCK_PASS_VARS (1<<20)
#define ZEND_DUMP_BEFORE_DFA_PASS (1<<21)
#define ZEND_DUMP_AFTER_DFA_PASS (1<<22)
#define ZEND_DUMP_DFA_CFG (1<<23)
#define ZEND_DUMP_DFA_DOMINATORS (1<<24)
#define ZEND_DUMP_DFA_LIVENESS (1<<25)
#define ZEND_DUMP_DFA_PHI (1<<26)
#define ZEND_DUMP_DFA_SSA (1<<27)
#define ZEND_DUMP_DFA_SSA_VARS (1<<28)
#define ZEND_DUMP_SCCP (1<<29)
typedef struct _zend_script {
zend_string *filename;
zend_op_array main_op_array;
HashTable function_table;
HashTable class_table;
uint32_t first_early_binding_opline; /* the linked list of delayed declarations */
} zend_script;
typedef void (*zend_optimizer_pass_t)(zend_script *, void *context);
BEGIN_EXTERN_C()
ZEND_API int zend_optimize_script(zend_script *script, zend_long optimization_level, zend_long debug_level);
ZEND_API int zend_optimizer_register_pass(zend_optimizer_pass_t pass);
ZEND_API void zend_optimizer_unregister_pass(int idx);
int zend_optimizer_startup(void);
int zend_optimizer_shutdown(void);
END_EXTERN_C()
#endif
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