/* +----------------------------------------------------------------------+ | 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 | | Zeev Suraski | | Stanislav Malyshev | | Dmitry Stogov | +----------------------------------------------------------------------+ */ #ifndef ZEND_OPTIMIZER_INTERNAL_H #define ZEND_OPTIMIZER_INTERNAL_H #include "zend_ssa.h" #include "zend_func_info.h" #include #define ZEND_OP1_LITERAL(opline) (op_array)->literals[(opline)->op1.constant] #define ZEND_OP1_JMP_ADDR(opline) OP_JMP_ADDR(opline, (opline)->op1) #define ZEND_OP2_LITERAL(opline) (op_array)->literals[(opline)->op2.constant] #define ZEND_OP2_JMP_ADDR(opline) OP_JMP_ADDR(opline, (opline)->op2) #define VAR_NUM(v) EX_VAR_TO_NUM(v) #define NUM_VAR(v) EX_NUM_TO_VAR(v) #define INV_COND(op) ((op) == ZEND_JMPZ ? ZEND_JMPNZ : ZEND_JMPZ) #define INV_EX_COND(op) ((op) == ZEND_JMPZ_EX ? ZEND_JMPNZ : ZEND_JMPZ) #define INV_COND_EX(op) ((op) == ZEND_JMPZ ? ZEND_JMPNZ_EX : ZEND_JMPZ_EX) #define INV_EX_COND_EX(op) ((op) == ZEND_JMPZ_EX ? ZEND_JMPNZ_EX : ZEND_JMPZ_EX) #define RESULT_UNUSED(op) (op->result_type == IS_UNUSED) #define SAME_VAR(op1, op2) (op1 ## _type == op2 ## _type && op1.var == op2.var) typedef struct _zend_optimizer_ctx { zend_arena *arena; zend_script *script; HashTable *constants; zend_long optimization_level; zend_long debug_level; } zend_optimizer_ctx; #define LITERAL_LONG(op, val) do { \ zval _c; \ ZVAL_LONG(&_c, val); \ op.constant = zend_optimizer_add_literal(op_array, &_c); \ } while (0) #define LITERAL_BOOL(op, val) do { \ zval _c; \ ZVAL_BOOL(&_c, val); \ op.constant = zend_optimizer_add_literal(op_array, &_c); \ } while (0) #define literal_dtor(zv) do { \ zval_ptr_dtor_nogc(zv); \ ZVAL_NULL(zv); \ } while (0) #define COPY_NODE(target, src) do { \ target ## _type = src ## _type; \ target = src; \ } while (0) static inline bool zend_optimizer_is_loop_var_free(const zend_op *opline) { return (opline->opcode == ZEND_FE_FREE && opline->extended_value != ZEND_FREE_ON_RETURN) || (opline->opcode == ZEND_FREE && opline->extended_value == ZEND_FREE_SWITCH); } void zend_optimizer_convert_to_free_op1(zend_op_array *op_array, zend_op *opline); int zend_optimizer_add_literal(zend_op_array *op_array, const zval *zv); bool zend_optimizer_get_persistent_constant(zend_string *name, zval *result, int copy); void zend_optimizer_collect_constant(zend_optimizer_ctx *ctx, zval *name, zval* value); bool zend_optimizer_get_collected_constant(HashTable *constants, zval *name, zval* value); zend_result zend_optimizer_eval_binary_op(zval *result, uint8_t opcode, zval *op1, zval *op2); zend_result zend_optimizer_eval_unary_op(zval *result, uint8_t opcode, zval *op1); zend_result zend_optimizer_eval_cast(zval *result, uint32_t type, zval *op1); zend_result zend_optimizer_eval_strlen(zval *result, const zval *op1); zend_result zend_optimizer_eval_special_func_call( zval *result, zend_string *name, zend_string *arg); bool zend_optimizer_update_op1_const(zend_op_array *op_array, zend_op *opline, zval *val); bool zend_optimizer_update_op2_const(zend_op_array *op_array, zend_op *opline, zval *val); bool zend_optimizer_replace_by_const(zend_op_array *op_array, zend_op *opline, uint8_t type, uint32_t var, zval *val); zend_op *zend_optimizer_get_loop_var_def(const zend_op_array *op_array, zend_op *free_opline); zend_class_entry *zend_optimizer_get_class_entry( const zend_script *script, const zend_op_array *op_array, zend_string *lcname); zend_class_entry *zend_optimizer_get_class_entry_from_op1( const zend_script *script, const zend_op_array *op_array, const zend_op *opline); const zend_class_constant *zend_fetch_class_const_info( const zend_script *script, const zend_op_array *op_array, const zend_op *opline, bool *is_prototype); void zend_optimizer_pass1(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimizer_pass3(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimize_func_calls(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimize_cfg(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimize_dfa(zend_op_array *op_array, zend_optimizer_ctx *ctx); zend_result zend_dfa_analyze_op_array(zend_op_array *op_array, zend_optimizer_ctx *ctx, zend_ssa *ssa); void zend_dfa_optimize_op_array(zend_op_array *op_array, zend_optimizer_ctx *ctx, zend_ssa *ssa, zend_call_info **call_map); void zend_optimize_temporary_variables(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimizer_nop_removal(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx *ctx); void zend_optimizer_compact_vars(zend_op_array *op_array); zend_function *zend_optimizer_get_called_func( zend_script *script, zend_op_array *op_array, zend_op *opline, bool *is_prototype); uint32_t zend_optimizer_classify_function(zend_string *name, uint32_t num_args); void zend_optimizer_migrate_jump(zend_op_array *op_array, zend_op *new_opline, zend_op *opline); void zend_optimizer_shift_jump(zend_op_array *op_array, zend_op *opline, uint32_t *shiftlist); int sccp_optimize_op_array(zend_optimizer_ctx *ctx, zend_op_array *op_array, zend_ssa *ssa, zend_call_info **call_map); int dce_optimize_op_array(zend_op_array *op_array, zend_optimizer_ctx *optimizer_ctx, zend_ssa *ssa, bool reorder_dtor_effects); zend_result zend_ssa_escape_analysis(const zend_script *script, zend_op_array *op_array, zend_ssa *ssa); #endif