PAL.C.T MINI SHELL
/*
+----------------------------------------------------------------------+
| Zend OPcache |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2015 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: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Stanislav Malyshev <stas@zend.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_OPTIMIZER_INTERNAL_H
#define ZEND_OPTIMIZER_INTERNAL_H
#include "ZendAccelerator.h"
#define VAR_NUM(v) EX_VAR_TO_NUM(v)
#define NUM_VAR(v) ((uint32_t)(zend_uintptr_t)ZEND_CALL_VAR_NUM(0, 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)
#undef MAKE_NOP
#define MAKE_NOP(opline) do { \
(opline)->op1.num = 0; \
(opline)->op2.num = 0; \
(opline)->result.num = 0; \
(opline)->opcode = ZEND_NOP; \
(opline)->op1_type = IS_UNUSED; \
(opline)->op2_type = IS_UNUSED; \
(opline)->result_type = IS_UNUSED; \
zend_vm_set_opcode_handler(opline); \
} while (0)
#define RESULT_USED(op) (((op->result_type & IS_VAR) && !(op->result_type & EXT_TYPE_UNUSED)) || op->result_type == IS_TMP_VAR)
#define RESULT_UNUSED(op) ((op->result_type & EXT_TYPE_UNUSED) != 0)
#define SAME_VAR(op1, op2) ((((op1 ## _type & IS_VAR) && (op2 ## _type & IS_VAR)) || (op1 ## _type == IS_TMP_VAR && op2 ## _type == IS_TMP_VAR)) && op1.var == op2.var)
typedef struct _zend_optimizer_ctx {
zend_arena *arena;
zend_persistent_script *script;
HashTable *constants;
} zend_optimizer_ctx;
typedef struct _zend_code_block zend_code_block;
typedef struct _zend_block_source zend_block_source;
struct _zend_code_block {
int access;
zend_op *start_opline;
int start_opline_no;
int len;
zend_code_block *op1_to;
zend_code_block *op2_to;
zend_code_block *ext_to;
zend_code_block *follow_to;
zend_code_block *next;
zend_block_source *sources;
zend_bool protected; /* don't merge this block with others */
};
typedef struct _zend_cfg {
zend_code_block *blocks;
zend_code_block **try;
zend_code_block **catch;
zend_code_block **loop_start;
zend_code_block **loop_cont;
zend_code_block **loop_brk;
zend_op **Tsource;
char *same_t;
} zend_cfg;
struct _zend_block_source {
zend_code_block *from;
zend_block_source *next;
};
#define OPTIMIZATION_LEVEL \
ZCG(accel_directives).optimization_level
#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_dtor(zv); \
ZVAL_NULL(zv); \
} while (0)
#define COPY_NODE(target, src) do { \
target ## _type = src ## _type; \
target = src; \
} while (0)
int zend_optimizer_add_literal(zend_op_array *op_array, zval *zv);
int 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);
int zend_optimizer_get_collected_constant(HashTable *constants, zval *name, zval* value);
int zend_optimizer_lookup_cv(zend_op_array *op_array, zend_string* name);
int zend_optimizer_update_op1_const(zend_op_array *op_array,
zend_op *opline,
zval *val);
int zend_optimizer_update_op2_const(zend_op_array *op_array,
zend_op *opline,
zval *val);
int zend_optimizer_replace_by_const(zend_op_array *op_array,
zend_op *opline,
zend_uchar type,
uint32_t var,
zval *val);
void zend_optimizer_pass1(zend_op_array *op_array, zend_optimizer_ctx *ctx);
void zend_optimizer_pass2(zend_op_array *op_array);
void zend_optimizer_pass3(zend_op_array *op_array);
void optimize_func_calls(zend_op_array *op_array, zend_optimizer_ctx *ctx);
void optimize_cfg(zend_op_array *op_array, zend_optimizer_ctx *ctx);
void optimize_temporary_variables(zend_op_array *op_array, zend_optimizer_ctx *ctx);
void zend_optimizer_nop_removal(zend_op_array *op_array);
void zend_optimizer_compact_literals(zend_op_array *op_array, zend_optimizer_ctx *ctx);
int zend_optimizer_is_disabled_func(const char *name, size_t len);
#endif
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