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Zend
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Optimizer
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zend_optimizer.h
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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; } zend_script; typedef void (*zend_optimizer_pass_t)(zend_script *, void *context); BEGIN_EXTERN_C() ZEND_API void 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); zend_result zend_optimizer_startup(void); zend_result zend_optimizer_shutdown(void); typedef void (*zend_op_array_func_t)(zend_op_array *, void *context); void zend_foreach_op_array(zend_script *script, zend_op_array_func_t func, void *context); END_EXTERN_C() #endif