1 /* 2 +----------------------------------------------------------------------+ 3 | Zend OPcache | 4 +----------------------------------------------------------------------+ 5 | Copyright (c) 1998-2018 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 | http://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: Andi Gutmans <andi@zend.com> | 16 | Zeev Suraski <zeev@zend.com> | 17 | Stanislav Malyshev <stas@zend.com> | 18 | Dmitry Stogov <dmitry@zend.com> | 19 +----------------------------------------------------------------------+ 20 */ 21 22 #ifndef ZEND_OPTIMIZER_INTERNAL_H 23 #define ZEND_OPTIMIZER_INTERNAL_H 24 25 #include "zend_ssa.h" 26 27 #define ZEND_RESULT_TYPE(opline) (opline)->result_type 28 #define ZEND_RESULT(opline) (opline)->result 29 #define ZEND_OP1_TYPE(opline) (opline)->op1_type 30 #define ZEND_OP1(opline) (opline)->op1 31 #define ZEND_OP1_LITERAL(opline) (op_array)->literals[(opline)->op1.constant] 32 #define ZEND_OP1_JMP_ADDR(opline) OP_JMP_ADDR(opline, (opline)->op1) 33 #define ZEND_OP2_TYPE(opline) (opline)->op2_type 34 #define ZEND_OP2(opline) (opline)->op2 35 #define ZEND_OP2_LITERAL(opline) (op_array)->literals[(opline)->op2.constant] 36 #define ZEND_OP2_JMP_ADDR(opline) OP_JMP_ADDR(opline, (opline)->op2) 37 38 #define VAR_NUM(v) EX_VAR_TO_NUM(v) 39 #define NUM_VAR(v) ((uint32_t)(zend_uintptr_t)ZEND_CALL_VAR_NUM(0, v)) 40 41 #define INV_COND(op) ((op) == ZEND_JMPZ ? ZEND_JMPNZ : ZEND_JMPZ) 42 #define INV_EX_COND(op) ((op) == ZEND_JMPZ_EX ? ZEND_JMPNZ : ZEND_JMPZ) 43 #define INV_COND_EX(op) ((op) == ZEND_JMPZ ? ZEND_JMPNZ_EX : ZEND_JMPZ_EX) 44 #define INV_EX_COND_EX(op) ((op) == ZEND_JMPZ_EX ? ZEND_JMPNZ_EX : ZEND_JMPZ_EX) 45 46 #define RESULT_UNUSED(op) (op->result_type == IS_UNUSED) 47 #define SAME_VAR(op1, op2) (op1 ## _type == op2 ## _type && op1.var == op2.var) 48 49 typedef struct _zend_optimizer_ctx { 50 zend_arena *arena; 51 zend_script *script; 52 HashTable *constants; 53 zend_long optimization_level; 54 zend_long debug_level; 55 } zend_optimizer_ctx; 56 57 #define LITERAL_LONG(op, val) do { \ 58 zval _c; \ 59 ZVAL_LONG(&_c, val); \ 60 op.constant = zend_optimizer_add_literal(op_array, &_c); \ 61 } while (0) 62 63 #define LITERAL_BOOL(op, val) do { \ 64 zval _c; \ 65 ZVAL_BOOL(&_c, val); \ 66 op.constant = zend_optimizer_add_literal(op_array, &_c); \ 67 } while (0) 68 69 #define literal_dtor(zv) do { \ 70 zval_dtor(zv); \ 71 ZVAL_NULL(zv); \ 72 } while (0) 73 74 #define COPY_NODE(target, src) do { \ 75 target ## _type = src ## _type; \ 76 target = src; \ 77 } while (0) 78 79 int zend_optimizer_add_literal(zend_op_array *op_array, zval *zv); 80 int zend_optimizer_get_persistent_constant(zend_string *name, zval *result, int copy); 81 void zend_optimizer_collect_constant(zend_optimizer_ctx *ctx, zval *name, zval* value); 82 int zend_optimizer_get_collected_constant(HashTable *constants, zval *name, zval* value); 83 int zend_optimizer_lookup_cv(zend_op_array *op_array, zend_string* name); 84 int zend_optimizer_update_op1_const(zend_op_array *op_array, 85 zend_op *opline, 86 zval *val); 87 int zend_optimizer_update_op2_const(zend_op_array *op_array, 88 zend_op *opline, 89 zval *val); 90 int zend_optimizer_replace_by_const(zend_op_array *op_array, 91 zend_op *opline, 92 zend_uchar type, 93 uint32_t var, 94 zval *val); 95 96 void zend_optimizer_remove_live_range(zend_op_array *op_array, uint32_t var); 97 void zend_optimizer_pass1(zend_op_array *op_array, zend_optimizer_ctx *ctx); 98 void zend_optimizer_pass2(zend_op_array *op_array); 99 void zend_optimizer_pass3(zend_op_array *op_array); 100 void zend_optimize_func_calls(zend_op_array *op_array, zend_optimizer_ctx *ctx); 101 void zend_optimize_cfg(zend_op_array *op_array, zend_optimizer_ctx *ctx); 102 void zend_optimize_dfa(zend_op_array *op_array, zend_optimizer_ctx *ctx); 103 int zend_dfa_analyze_op_array(zend_op_array *op_array, zend_optimizer_ctx *ctx, zend_ssa *ssa, uint32_t *flags); 104 void zend_dfa_optimize_op_array(zend_op_array *op_array, zend_optimizer_ctx *ctx, zend_ssa *ssa); 105 void zend_optimize_temporary_variables(zend_op_array *op_array, zend_optimizer_ctx *ctx); 106 void zend_optimizer_nop_removal(zend_op_array *op_array); 107 void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx *ctx); 108 int zend_optimizer_is_disabled_func(const char *name, size_t len); 109 zend_function *zend_optimizer_get_called_func( 110 zend_script *script, zend_op_array *op_array, zend_op *opline, zend_bool rt_constants); 111 uint32_t zend_optimizer_classify_function(zend_string *name, uint32_t num_args); 112 113 #endif 114
