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php-src/Zend/zend_operators.h
Xinchen Hui a6519d0514 year++
2018-01-02 12:57:58 +08:00

886 lines
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifndef ZEND_OPERATORS_H
#define ZEND_OPERATORS_H
#include <errno.h>
#include <math.h>
#include <assert.h>
#ifdef __GNUC__
#include <stddef.h>
#endif
#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif
#include "zend_portability.h"
#include "zend_strtod.h"
#include "zend_multiply.h"
#include "zend_object_handlers.h"
#define LONG_SIGN_MASK (((zend_long)1) << (8*sizeof(zend_long)-1))
BEGIN_EXTERN_C()
ZEND_API int ZEND_FASTCALL add_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL sub_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL mul_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL pow_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL div_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL mod_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL boolean_xor_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL boolean_not_function(zval *result, zval *op1);
ZEND_API int ZEND_FASTCALL bitwise_not_function(zval *result, zval *op1);
ZEND_API int ZEND_FASTCALL bitwise_or_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL bitwise_and_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL bitwise_xor_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL shift_left_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL shift_right_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL concat_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL zend_is_identical(zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_equal_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_identical_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_not_identical_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_not_equal_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_smaller_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL is_smaller_or_equal_function(zval *result, zval *op1, zval *op2);
ZEND_API zend_bool ZEND_FASTCALL instanceof_function_ex(const zend_class_entry *instance_ce, const zend_class_entry *ce, zend_bool interfaces_only);
ZEND_API zend_bool ZEND_FASTCALL instanceof_function(const zend_class_entry *instance_ce, const zend_class_entry *ce);
/**
* Checks whether the string "str" with length "length" is numeric. The value
* of allow_errors determines whether it's required to be entirely numeric, or
* just its prefix. Leading whitespace is allowed.
*
* The function returns 0 if the string did not contain a valid number; IS_LONG
* if it contained a number that fits within the range of a long; or IS_DOUBLE
* if the number was out of long range or contained a decimal point/exponent.
* The number's value is returned into the respective pointer, *lval or *dval,
* if that pointer is not NULL.
*
* This variant also gives information if a string that represents an integer
* could not be represented as such due to overflow. It writes 1 to oflow_info
* if the integer is larger than ZEND_LONG_MAX and -1 if it's smaller than ZEND_LONG_MIN.
*/
ZEND_API zend_uchar ZEND_FASTCALL _is_numeric_string_ex(const char *str, size_t length, zend_long *lval, double *dval, int allow_errors, int *oflow_info);
ZEND_API const char* ZEND_FASTCALL zend_memnstr_ex(const char *haystack, const char *needle, size_t needle_len, const char *end);
ZEND_API const char* ZEND_FASTCALL zend_memnrstr_ex(const char *haystack, const char *needle, size_t needle_len, const char *end);
#if SIZEOF_ZEND_LONG == 4
# define ZEND_DOUBLE_FITS_LONG(d) (!((d) > ZEND_LONG_MAX || (d) < ZEND_LONG_MIN))
#else
/* >= as (double)ZEND_LONG_MAX is outside signed range */
# define ZEND_DOUBLE_FITS_LONG(d) (!((d) >= ZEND_LONG_MAX || (d) < ZEND_LONG_MIN))
#endif
#if ZEND_DVAL_TO_LVAL_CAST_OK
static zend_always_inline zend_long zend_dval_to_lval(double d)
{
if (EXPECTED(zend_finite(d)) && EXPECTED(!zend_isnan(d))) {
return (zend_long)d;
} else {
return 0;
}
}
#else
ZEND_API zend_long ZEND_FASTCALL zend_dval_to_lval_slow(double d);
static zend_always_inline zend_long zend_dval_to_lval(double d)
{
if (UNEXPECTED(!zend_finite(d)) || UNEXPECTED(zend_isnan(d))) {
return 0;
} else if (!ZEND_DOUBLE_FITS_LONG(d)) {
return zend_dval_to_lval_slow(d);
}
return (zend_long)d;
}
#endif
static zend_always_inline zend_long zend_dval_to_lval_cap(double d)
{
if (UNEXPECTED(!zend_finite(d)) || UNEXPECTED(zend_isnan(d))) {
return 0;
} else if (!ZEND_DOUBLE_FITS_LONG(d)) {
return (d > 0 ? ZEND_LONG_MAX : ZEND_LONG_MIN);
}
return (zend_long)d;
}
/* }}} */
#define ZEND_IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
#define ZEND_IS_XDIGIT(c) (((c) >= 'A' && (c) <= 'F') || ((c) >= 'a' && (c) <= 'f'))
static zend_always_inline zend_uchar is_numeric_string_ex(const char *str, size_t length, zend_long *lval, double *dval, int allow_errors, int *oflow_info)
{
if (*str > '9') {
return 0;
}
return _is_numeric_string_ex(str, length, lval, dval, allow_errors, oflow_info);
}
static zend_always_inline zend_uchar is_numeric_string(const char *str, size_t length, zend_long *lval, double *dval, int allow_errors) {
return is_numeric_string_ex(str, length, lval, dval, allow_errors, NULL);
}
ZEND_API zend_uchar ZEND_FASTCALL is_numeric_str_function(const zend_string *str, zend_long *lval, double *dval);
static zend_always_inline const char *
zend_memnstr(const char *haystack, const char *needle, size_t needle_len, const char *end)
{
const char *p = haystack;
const char ne = needle[needle_len-1];
ptrdiff_t off_p;
size_t off_s;
if (needle_len == 1) {
return (const char *)memchr(p, *needle, (end-p));
}
off_p = end - haystack;
off_s = (off_p > 0) ? (size_t)off_p : 0;
if (needle_len > off_s) {
return NULL;
}
if (EXPECTED(off_s < 1024 || needle_len < 9)) { /* glibc memchr is faster when needle is too short */
end -= needle_len;
while (p <= end) {
if ((p = (const char *)memchr(p, *needle, (end-p+1))) && ne == p[needle_len-1]) {
if (!memcmp(needle+1, p+1, needle_len-2)) {
return p;
}
}
if (p == NULL) {
return NULL;
}
p++;
}
return NULL;
} else {
return zend_memnstr_ex(haystack, needle, needle_len, end);
}
}
static zend_always_inline const void *zend_memrchr(const void *s, int c, size_t n)
{
const unsigned char *e;
if (0 == n) {
return NULL;
}
for (e = (const unsigned char *)s + n - 1; e >= (const unsigned char *)s; e--) {
if (*e == (const unsigned char)c) {
return (const void *)e;
}
}
return NULL;
}
static zend_always_inline const char *
zend_memnrstr(const char *haystack, const char *needle, size_t needle_len, char *end)
{
const char *p = end;
const char ne = needle[needle_len-1];
ptrdiff_t off_p;
size_t off_s;
if (needle_len == 1) {
return (const char *)zend_memrchr(haystack, *needle, (p - haystack));
}
off_p = end - haystack;
off_s = (off_p > 0) ? (size_t)off_p : 0;
if (needle_len > off_s) {
return NULL;
}
if (EXPECTED(off_s < 1024 || needle_len < 3)) {
p -= needle_len;
do {
if ((p = (const char *)zend_memrchr(haystack, *needle, (p - haystack) + 1)) && ne == p[needle_len-1]) {
if (!memcmp(needle + 1, p + 1, needle_len - 2)) {
return p;
}
}
} while (p-- >= haystack);
return NULL;
} else {
return zend_memnrstr_ex(haystack, needle, needle_len, end);
}
}
ZEND_API int ZEND_FASTCALL increment_function(zval *op1);
ZEND_API int ZEND_FASTCALL decrement_function(zval *op2);
ZEND_API void ZEND_FASTCALL convert_scalar_to_number(zval *op);
ZEND_API void ZEND_FASTCALL _convert_to_cstring(zval *op ZEND_FILE_LINE_DC);
ZEND_API void ZEND_FASTCALL _convert_to_string(zval *op ZEND_FILE_LINE_DC);
ZEND_API void ZEND_FASTCALL convert_to_long(zval *op);
ZEND_API void ZEND_FASTCALL convert_to_double(zval *op);
ZEND_API void ZEND_FASTCALL convert_to_long_base(zval *op, int base);
ZEND_API void ZEND_FASTCALL convert_to_null(zval *op);
ZEND_API void ZEND_FASTCALL convert_to_boolean(zval *op);
ZEND_API void ZEND_FASTCALL convert_to_array(zval *op);
ZEND_API void ZEND_FASTCALL convert_to_object(zval *op);
ZEND_API void multi_convert_to_long_ex(int argc, ...);
ZEND_API void multi_convert_to_double_ex(int argc, ...);
ZEND_API void multi_convert_to_string_ex(int argc, ...);
ZEND_API zend_long ZEND_FASTCALL zval_get_long_func(zval *op);
ZEND_API double ZEND_FASTCALL zval_get_double_func(zval *op);
ZEND_API zend_string* ZEND_FASTCALL zval_get_string_func(zval *op);
static zend_always_inline zend_long zval_get_long(zval *op) {
return EXPECTED(Z_TYPE_P(op) == IS_LONG) ? Z_LVAL_P(op) : zval_get_long_func(op);
}
static zend_always_inline double zval_get_double(zval *op) {
return EXPECTED(Z_TYPE_P(op) == IS_DOUBLE) ? Z_DVAL_P(op) : zval_get_double_func(op);
}
static zend_always_inline zend_string *zval_get_string(zval *op) {
return EXPECTED(Z_TYPE_P(op) == IS_STRING) ? zend_string_copy(Z_STR_P(op)) : zval_get_string_func(op);
}
static zend_always_inline zend_string *zval_get_tmp_string(zval *op, zend_string **tmp) {
if (EXPECTED(Z_TYPE_P(op) == IS_STRING)) {
*tmp = NULL;
return Z_STR_P(op);
} else {
return *tmp = zval_get_string_func(op);
}
}
static zend_always_inline void zend_tmp_string_release(zend_string *tmp) {
if (UNEXPECTED(tmp)) {
zend_string_release(tmp);
}
}
/* Compatibility macros for 7.2 and below */
#define _zval_get_long(op) zval_get_long(op)
#define _zval_get_double(op) zval_get_double(op)
#define _zval_get_string(op) zval_get_string(op)
#define _zval_get_long_func(op) zval_get_long_func(op)
#define _zval_get_double_func(op) zval_get_double_func(op)
#define _zval_get_string_func(op) zval_get_string_func(op)
#define convert_to_cstring(op) if (Z_TYPE_P(op) != IS_STRING) { _convert_to_cstring((op) ZEND_FILE_LINE_CC); }
#define convert_to_string(op) if (Z_TYPE_P(op) != IS_STRING) { _convert_to_string((op) ZEND_FILE_LINE_CC); }
ZEND_API int ZEND_FASTCALL zend_is_true(zval *op);
ZEND_API int ZEND_FASTCALL zend_object_is_true(zval *op);
#define zval_is_true(op) \
zend_is_true(op)
static zend_always_inline int i_zend_is_true(zval *op)
{
int result = 0;
again:
switch (Z_TYPE_P(op)) {
case IS_TRUE:
result = 1;
break;
case IS_LONG:
if (Z_LVAL_P(op)) {
result = 1;
}
break;
case IS_DOUBLE:
if (Z_DVAL_P(op)) {
result = 1;
}
break;
case IS_STRING:
if (Z_STRLEN_P(op) > 1 || (Z_STRLEN_P(op) && Z_STRVAL_P(op)[0] != '0')) {
result = 1;
}
break;
case IS_ARRAY:
if (zend_hash_num_elements(Z_ARRVAL_P(op))) {
result = 1;
}
break;
case IS_OBJECT:
if (EXPECTED(Z_OBJ_HT_P(op)->cast_object == zend_std_cast_object_tostring)) {
result = 1;
} else {
result = zend_object_is_true(op);
}
break;
case IS_RESOURCE:
if (EXPECTED(Z_RES_HANDLE_P(op))) {
result = 1;
}
break;
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto again;
break;
default:
break;
}
return result;
}
ZEND_API int ZEND_FASTCALL compare_function(zval *result, zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL numeric_compare_function(zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL string_compare_function_ex(zval *op1, zval *op2, zend_bool case_insensitive);
ZEND_API int ZEND_FASTCALL string_compare_function(zval *op1, zval *op2);
ZEND_API int ZEND_FASTCALL string_case_compare_function(zval *op1, zval *op2);
#if HAVE_STRCOLL
ZEND_API int ZEND_FASTCALL string_locale_compare_function(zval *op1, zval *op2);
#endif
ZEND_API void ZEND_FASTCALL zend_str_tolower(char *str, size_t length);
ZEND_API char* ZEND_FASTCALL zend_str_tolower_copy(char *dest, const char *source, size_t length);
ZEND_API char* ZEND_FASTCALL zend_str_tolower_dup(const char *source, size_t length);
ZEND_API char* ZEND_FASTCALL zend_str_tolower_dup_ex(const char *source, size_t length);
ZEND_API zend_string* ZEND_FASTCALL zend_string_tolower_ex(zend_string *str, int persistent);
#define zend_string_tolower(str) zend_string_tolower_ex(str, 0)
ZEND_API int ZEND_FASTCALL zend_binary_zval_strcmp(zval *s1, zval *s2);
ZEND_API int ZEND_FASTCALL zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3);
ZEND_API int ZEND_FASTCALL zend_binary_zval_strcasecmp(zval *s1, zval *s2);
ZEND_API int ZEND_FASTCALL zend_binary_zval_strncasecmp(zval *s1, zval *s2, zval *s3);
ZEND_API int ZEND_FASTCALL zend_binary_strcmp(const char *s1, size_t len1, const char *s2, size_t len2);
ZEND_API int ZEND_FASTCALL zend_binary_strncmp(const char *s1, size_t len1, const char *s2, size_t len2, size_t length);
ZEND_API int ZEND_FASTCALL zend_binary_strcasecmp(const char *s1, size_t len1, const char *s2, size_t len2);
ZEND_API int ZEND_FASTCALL zend_binary_strncasecmp(const char *s1, size_t len1, const char *s2, size_t len2, size_t length);
ZEND_API int ZEND_FASTCALL zend_binary_strcasecmp_l(const char *s1, size_t len1, const char *s2, size_t len2);
ZEND_API int ZEND_FASTCALL zend_binary_strncasecmp_l(const char *s1, size_t len1, const char *s2, size_t len2, size_t length);
ZEND_API int ZEND_FASTCALL zendi_smart_strcmp(zend_string *s1, zend_string *s2);
ZEND_API int ZEND_FASTCALL zend_compare_symbol_tables(HashTable *ht1, HashTable *ht2);
ZEND_API int ZEND_FASTCALL zend_compare_arrays(zval *a1, zval *a2);
ZEND_API int ZEND_FASTCALL zend_compare_objects(zval *o1, zval *o2);
ZEND_API int ZEND_FASTCALL zend_atoi(const char *str, size_t str_len);
ZEND_API zend_long ZEND_FASTCALL zend_atol(const char *str, size_t str_len);
ZEND_API void ZEND_FASTCALL zend_locale_sprintf_double(zval *op ZEND_FILE_LINE_DC);
#define convert_to_ex_master(pzv, lower_type, upper_type) \
if (Z_TYPE_P(pzv)!=upper_type) { \
convert_to_##lower_type(pzv); \
}
#define convert_to_explicit_type(pzv, type) \
do { \
switch (type) { \
case IS_NULL: \
convert_to_null(pzv); \
break; \
case IS_LONG: \
convert_to_long(pzv); \
break; \
case IS_DOUBLE: \
convert_to_double(pzv); \
break; \
case _IS_BOOL: \
convert_to_boolean(pzv); \
break; \
case IS_ARRAY: \
convert_to_array(pzv); \
break; \
case IS_OBJECT: \
convert_to_object(pzv); \
break; \
case IS_STRING: \
convert_to_string(pzv); \
break; \
default: \
assert(0); \
break; \
} \
} while (0);
#define convert_to_explicit_type_ex(pzv, str_type) \
if (Z_TYPE_P(pzv) != str_type) { \
convert_to_explicit_type(pzv, str_type); \
}
#define convert_to_boolean_ex(pzv) convert_to_ex_master(pzv, boolean, _IS_BOOL)
#define convert_to_long_ex(pzv) convert_to_ex_master(pzv, long, IS_LONG)
#define convert_to_double_ex(pzv) convert_to_ex_master(pzv, double, IS_DOUBLE)
#define convert_to_string_ex(pzv) convert_to_ex_master(pzv, string, IS_STRING)
#define convert_to_array_ex(pzv) convert_to_ex_master(pzv, array, IS_ARRAY)
#define convert_to_object_ex(pzv) convert_to_ex_master(pzv, object, IS_OBJECT)
#define convert_to_null_ex(pzv) convert_to_ex_master(pzv, null, IS_NULL)
#define convert_scalar_to_number_ex(pzv) \
if (Z_TYPE_P(pzv)!=IS_LONG && Z_TYPE_P(pzv)!=IS_DOUBLE) { \
convert_scalar_to_number(pzv); \
}
#if HAVE_SETLOCALE && defined(ZEND_WIN32) && !defined(ZTS) && defined(_MSC_VER)
/* This performance improvement of tolower() on Windows gives 10-18% on bench.php */
#define ZEND_USE_TOLOWER_L 1
#endif
#ifdef ZEND_USE_TOLOWER_L
ZEND_API void zend_update_current_locale(void);
#else
#define zend_update_current_locale()
#endif
/* The offset in bytes between the value and type fields of a zval */
#define ZVAL_OFFSETOF_TYPE \
(offsetof(zval, u1.type_info) - offsetof(zval, value))
static zend_always_inline void fast_long_increment_function(zval *op1)
{
#if defined(HAVE_ASM_GOTO) && defined(__i386__)
__asm__ goto(
"incl (%0)\n\t"
"jo %l1\n"
:
: "r"(&op1->value)
: "cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0);
#elif defined(HAVE_ASM_GOTO) && defined(__x86_64__)
__asm__ goto(
"incq (%0)\n\t"
"jo %l1\n"
:
: "r"(&op1->value)
: "cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0);
#elif PHP_HAVE_BUILTIN_SADDL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG
long lresult;
if (UNEXPECTED(__builtin_saddl_overflow(Z_LVAL_P(op1), 1, &lresult))) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0);
} else {
Z_LVAL_P(op1) = lresult;
}
#elif PHP_HAVE_BUILTIN_SADDLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG
long long llresult;
if (UNEXPECTED(__builtin_saddll_overflow(Z_LVAL_P(op1), 1, &llresult))) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0);
} else {
Z_LVAL_P(op1) = llresult;
}
#else
if (UNEXPECTED(Z_LVAL_P(op1) == ZEND_LONG_MAX)) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0);
} else {
Z_LVAL_P(op1)++;
}
#endif
}
static zend_always_inline void fast_long_decrement_function(zval *op1)
{
#if defined(HAVE_ASM_GOTO) && defined(__i386__)
__asm__ goto(
"decl (%0)\n\t"
"jo %l1\n"
:
: "r"(&op1->value)
: "cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0);
#elif defined(HAVE_ASM_GOTO) && defined(__x86_64__)
__asm__ goto(
"decq (%0)\n\t"
"jo %l1\n"
:
: "r"(&op1->value)
: "cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0);
#elif PHP_HAVE_BUILTIN_SSUBL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG
long lresult;
if (UNEXPECTED(__builtin_ssubl_overflow(Z_LVAL_P(op1), 1, &lresult))) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0);
} else {
Z_LVAL_P(op1) = lresult;
}
#elif PHP_HAVE_BUILTIN_SSUBLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG
long long llresult;
if (UNEXPECTED(__builtin_ssubll_overflow(Z_LVAL_P(op1), 1, &llresult))) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0);
} else {
Z_LVAL_P(op1) = llresult;
}
#else
if (UNEXPECTED(Z_LVAL_P(op1) == ZEND_LONG_MIN)) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)ZEND_LONG_MIN - 1.0);
} else {
Z_LVAL_P(op1)--;
}
#endif
}
static zend_always_inline void fast_long_add_function(zval *result, zval *op1, zval *op2)
{
#if defined(HAVE_ASM_GOTO) && defined(__i386__)
__asm__ goto(
"movl (%1), %%eax\n\t"
"addl (%2), %%eax\n\t"
"jo %l5\n\t"
"movl %%eax, (%0)\n\t"
"movl %3, %c4(%0)\n"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(ZVAL_OFFSETOF_TYPE)
: "eax","cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
#elif defined(HAVE_ASM_GOTO) && defined(__x86_64__)
__asm__ goto(
"movq (%1), %%rax\n\t"
"addq (%2), %%rax\n\t"
"jo %l5\n\t"
"movq %%rax, (%0)\n\t"
"movl %3, %c4(%0)\n"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(ZVAL_OFFSETOF_TYPE)
: "rax","cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
#elif PHP_HAVE_BUILTIN_SADDL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG
long lresult;
if (UNEXPECTED(__builtin_saddl_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &lresult))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lresult);
}
#elif PHP_HAVE_BUILTIN_SADDLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG
long long llresult;
if (UNEXPECTED(__builtin_saddll_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &llresult))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, llresult);
}
#else
/*
* 'result' may alias with op1 or op2, so we need to
* ensure that 'result' is not updated until after we
* have read the values of op1 and op2.
*/
if (UNEXPECTED((Z_LVAL_P(op1) & LONG_SIGN_MASK) == (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != ((Z_LVAL_P(op1) + Z_LVAL_P(op2)) & LONG_SIGN_MASK))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, Z_LVAL_P(op1) + Z_LVAL_P(op2));
}
#endif
}
static zend_always_inline int fast_add_function(zval *result, zval *op1, zval *op2)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
fast_long_add_function(result, op1, op2);
return SUCCESS;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) + Z_DVAL_P(op2));
return SUCCESS;
}
} else if (EXPECTED(Z_TYPE_P(op1) == IS_DOUBLE)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + ((double)Z_LVAL_P(op2)));
return SUCCESS;
}
}
return add_function(result, op1, op2);
}
static zend_always_inline void fast_long_sub_function(zval *result, zval *op1, zval *op2)
{
#if defined(HAVE_ASM_GOTO) && defined(__i386__)
__asm__ goto(
"movl (%1), %%eax\n\t"
"subl (%2), %%eax\n\t"
"jo %l5\n\t"
"movl %%eax, (%0)\n\t"
"movl %3, %c4(%0)\n"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(ZVAL_OFFSETOF_TYPE)
: "eax","cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
#elif defined(HAVE_ASM_GOTO) && defined(__x86_64__)
__asm__ goto(
"movq (%1), %%rax\n\t"
"subq (%2), %%rax\n\t"
"jo %l5\n\t"
"movq %%rax, (%0)\n\t"
"movl %3, %c4(%0)\n"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(ZVAL_OFFSETOF_TYPE)
: "rax","cc", "memory"
: overflow);
return;
overflow: ZEND_ATTRIBUTE_COLD_LABEL
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
#elif PHP_HAVE_BUILTIN_SSUBL_OVERFLOW && SIZEOF_LONG == SIZEOF_ZEND_LONG
long lresult;
if (UNEXPECTED(__builtin_ssubl_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &lresult))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lresult);
}
#elif PHP_HAVE_BUILTIN_SSUBLL_OVERFLOW && SIZEOF_LONG_LONG == SIZEOF_ZEND_LONG
long long llresult;
if (UNEXPECTED(__builtin_ssubll_overflow(Z_LVAL_P(op1), Z_LVAL_P(op2), &llresult))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, llresult);
}
#else
ZVAL_LONG(result, Z_LVAL_P(op1) - Z_LVAL_P(op2));
if (UNEXPECTED((Z_LVAL_P(op1) & LONG_SIGN_MASK) != (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != (Z_LVAL_P(result) & LONG_SIGN_MASK))) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
}
#endif
}
static zend_always_inline int fast_div_function(zval *result, zval *op1, zval *op2)
{
return div_function(result, op1, op2);
}
static zend_always_inline int zend_fast_equal_strings(zend_string *s1, zend_string *s2)
{
if (s1 == s2) {
return 1;
} else if (ZSTR_VAL(s1)[0] > '9' || ZSTR_VAL(s2)[0] > '9') {
return zend_string_equal_content(s1, s2);
} else {
return zendi_smart_strcmp(s1, s2) == 0;
}
}
static zend_always_inline int fast_equal_check_function(zval *op1, zval *op2)
{
zval result;
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
return Z_LVAL_P(op1) == Z_LVAL_P(op2);
} else if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
return ((double)Z_LVAL_P(op1)) == Z_DVAL_P(op2);
}
} else if (EXPECTED(Z_TYPE_P(op1) == IS_DOUBLE)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
return Z_DVAL_P(op1) == Z_DVAL_P(op2);
} else if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
return Z_DVAL_P(op1) == ((double)Z_LVAL_P(op2));
}
} else if (EXPECTED(Z_TYPE_P(op1) == IS_STRING)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_STRING)) {
return zend_fast_equal_strings(Z_STR_P(op1), Z_STR_P(op2));
}
}
compare_function(&result, op1, op2);
return Z_LVAL(result) == 0;
}
static zend_always_inline int fast_equal_check_long(zval *op1, zval *op2)
{
zval result;
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
return Z_LVAL_P(op1) == Z_LVAL_P(op2);
}
compare_function(&result, op1, op2);
return Z_LVAL(result) == 0;
}
static zend_always_inline int fast_equal_check_string(zval *op1, zval *op2)
{
zval result;
if (EXPECTED(Z_TYPE_P(op2) == IS_STRING)) {
return zend_fast_equal_strings(Z_STR_P(op1), Z_STR_P(op2));
}
compare_function(&result, op1, op2);
return Z_LVAL(result) == 0;
}
static zend_always_inline int fast_is_identical_function(zval *op1, zval *op2)
{
if (Z_TYPE_P(op1) != Z_TYPE_P(op2)) {
return 0;
} else if (Z_TYPE_P(op1) <= IS_TRUE) {
return 1;
}
return zend_is_identical(op1, op2);
}
static zend_always_inline int fast_is_not_identical_function(zval *op1, zval *op2)
{
if (Z_TYPE_P(op1) != Z_TYPE_P(op2)) {
return 1;
} else if (Z_TYPE_P(op1) <= IS_TRUE) {
return 0;
}
return !zend_is_identical(op1, op2);
}
#define ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode, binary_op) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& op1 == result \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, get)) \
&& EXPECTED(Z_OBJ_HANDLER_P(op1, set))) { \
int ret; \
zval rv; \
zval *objval = Z_OBJ_HANDLER_P(op1, get)(op1, &rv); \
Z_TRY_ADDREF_P(objval); \
ret = binary_op(objval, objval, op2); \
Z_OBJ_HANDLER_P(op1, set)(op1, objval); \
zval_ptr_dtor(objval); \
return ret; \
} else if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation))) { \
if (EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
} \
}
#define ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op2) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op2, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op2, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
}
#define ZEND_TRY_BINARY_OBJECT_OPERATION(opcode, binary_op) \
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode, binary_op) \
else \
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode)
#define ZEND_TRY_UNARY_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, NULL))) { \
return SUCCESS; \
}
/* buf points to the END of the buffer */
static zend_always_inline char *zend_print_ulong_to_buf(char *buf, zend_ulong num) {
*buf = '\0';
do {
*--buf = (char) (num % 10) + '0';
num /= 10;
} while (num > 0);
return buf;
}
/* buf points to the END of the buffer */
static zend_always_inline char *zend_print_long_to_buf(char *buf, zend_long num) {
if (num < 0) {
char *result = zend_print_ulong_to_buf(buf, ~((zend_ulong) num) + 1);
*--result = '-';
return result;
} else {
return zend_print_ulong_to_buf(buf, num);
}
}
ZEND_API zend_string* ZEND_FASTCALL zend_long_to_str(zend_long num);
static zend_always_inline void zend_unwrap_reference(zval *op) /* {{{ */
{
if (Z_REFCOUNT_P(op) == 1) {
ZVAL_UNREF(op);
} else {
Z_DELREF_P(op);
ZVAL_COPY(op, Z_REFVAL_P(op));
}
}
/* }}} */
END_EXTERN_C()
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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