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php-src/Zend/zend_operators.h
Nikita Popov 7a1a6092f6 Add functions for extracting long/double/string from zval 
These function get the long / double / string value of a zval with
usual cast semantics, but without actually modifying the zval.

Didn't go on a killing spree for convert_to_* yet...
2014-04-15 20:32:47 +02:00

906 lines
28 KiB
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2014 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> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#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_strtod.h"
#include "zend_multiply.h"
#if 0&&HAVE_BCMATH
#include "ext/bcmath/libbcmath/src/bcmath.h"
#endif
#define LONG_SIGN_MASK (1L << (8*sizeof(long)-1))
BEGIN_EXTERN_C()
ZEND_API int add_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int sub_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int mul_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int div_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int mod_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int boolean_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int boolean_not_function(zval *result, zval *op1 TSRMLS_DC);
ZEND_API int bitwise_not_function(zval *result, zval *op1 TSRMLS_DC);
ZEND_API int bitwise_or_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int bitwise_and_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int bitwise_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int shift_left_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int shift_right_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int concat_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_not_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_not_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_smaller_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_smaller_or_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API zend_bool instanceof_function_ex(const zend_class_entry *instance_ce, const zend_class_entry *ce, zend_bool interfaces_only TSRMLS_DC);
ZEND_API zend_bool instanceof_function(const zend_class_entry *instance_ce, const zend_class_entry *ce TSRMLS_DC);
END_EXTERN_C()
#if ZEND_DVAL_TO_LVAL_CAST_OK
# define zend_dval_to_lval(d) ((long) (d))
#elif SIZEOF_LONG == 4
static zend_always_inline long zend_dval_to_lval(double d)
{
if (d > LONG_MAX || d < LONG_MIN) {
double two_pow_32 = pow(2., 32.),
dmod;
dmod = fmod(d, two_pow_32);
if (dmod < 0) {
/* we're going to make this number positive; call ceil()
* to simulate rounding towards 0 of the negative number */
dmod = ceil(dmod) + two_pow_32;
}
return (long)(unsigned long)dmod;
}
return (long)d;
}
#else
static zend_always_inline long zend_dval_to_lval(double d)
{
/* >= as (double)LONG_MAX is outside signed range */
if (d >= LONG_MAX || d < LONG_MIN) {
double two_pow_64 = pow(2., 64.),
dmod;
dmod = fmod(d, two_pow_64);
if (dmod < 0) {
/* no need to call ceil; original double must have had no
* fractional part, hence dmod does not have one either */
dmod += two_pow_64;
}
return (long)(unsigned long)dmod;
}
return (long)d;
}
#endif
/* }}} */
#define ZEND_IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
#define ZEND_IS_XDIGIT(c) (((c) >= 'A' && (c) <= 'F') || ((c) >= 'a' && (c) <= 'f'))
/**
* 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 LONG_MAX and -1 if it's smaller than LONG_MIN.
*/
static inline zend_uchar is_numeric_string_ex(const char *str, int length, long *lval, double *dval, int allow_errors, int *oflow_info)
{
const char *ptr;
int base = 10, digits = 0, dp_or_e = 0;
double local_dval = 0.0;
zend_uchar type;
if (!length) {
return 0;
}
if (oflow_info != NULL) {
*oflow_info = 0;
}
/* Skip any whitespace
* This is much faster than the isspace() function */
while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r' || *str == '\v' || *str == '\f') {
str++;
length--;
}
ptr = str;
if (*ptr == '-' || *ptr == '+') {
ptr++;
}
if (ZEND_IS_DIGIT(*ptr)) {
/* Handle hex numbers
* str is used instead of ptr to disallow signs and keep old behavior */
if (length > 2 && *str == '0' && (str[1] == 'x' || str[1] == 'X')) {
base = 16;
ptr += 2;
}
/* Skip any leading 0s */
while (*ptr == '0') {
ptr++;
}
/* Count the number of digits. If a decimal point/exponent is found,
* it's a double. Otherwise, if there's a dval or no need to check for
* a full match, stop when there are too many digits for a long */
for (type = IS_LONG; !(digits >= MAX_LENGTH_OF_LONG && (dval || allow_errors == 1)); digits++, ptr++) {
check_digits:
if (ZEND_IS_DIGIT(*ptr) || (base == 16 && ZEND_IS_XDIGIT(*ptr))) {
continue;
} else if (base == 10) {
if (*ptr == '.' && dp_or_e < 1) {
goto process_double;
} else if ((*ptr == 'e' || *ptr == 'E') && dp_or_e < 2) {
const char *e = ptr + 1;
if (*e == '-' || *e == '+') {
ptr = e++;
}
if (ZEND_IS_DIGIT(*e)) {
goto process_double;
}
}
}
break;
}
if (base == 10) {
if (digits >= MAX_LENGTH_OF_LONG) {
if (oflow_info != NULL) {
*oflow_info = *str == '-' ? -1 : 1;
}
dp_or_e = -1;
goto process_double;
}
} else if (!(digits < SIZEOF_LONG * 2 || (digits == SIZEOF_LONG * 2 && ptr[-digits] <= '7'))) {
if (dval) {
local_dval = zend_hex_strtod(str, &ptr);
}
if (oflow_info != NULL) {
*oflow_info = 1;
}
type = IS_DOUBLE;
}
} else if (*ptr == '.' && ZEND_IS_DIGIT(ptr[1])) {
process_double:
type = IS_DOUBLE;
/* If there's a dval, do the conversion; else continue checking
* the digits if we need to check for a full match */
if (dval) {
local_dval = zend_strtod(str, &ptr);
} else if (allow_errors != 1 && dp_or_e != -1) {
dp_or_e = (*ptr++ == '.') ? 1 : 2;
goto check_digits;
}
} else {
return 0;
}
if (ptr != str + length) {
if (!allow_errors) {
return 0;
}
if (allow_errors == -1) {
zend_error(E_NOTICE, "A non well formed numeric value encountered");
}
}
if (type == IS_LONG) {
if (digits == MAX_LENGTH_OF_LONG - 1) {
int cmp = strcmp(&ptr[-digits], long_min_digits);
if (!(cmp < 0 || (cmp == 0 && *str == '-'))) {
if (dval) {
*dval = zend_strtod(str, NULL);
}
if (oflow_info != NULL) {
*oflow_info = *str == '-' ? -1 : 1;
}
return IS_DOUBLE;
}
}
if (lval) {
*lval = strtol(str, NULL, base);
}
return IS_LONG;
} else {
if (dval) {
*dval = local_dval;
}
return IS_DOUBLE;
}
}
static inline zend_uchar is_numeric_string(const char *str, int length, long *lval, double *dval, int allow_errors) {
return is_numeric_string_ex(str, length, lval, dval, allow_errors, NULL);
}
static inline const char *
zend_memnstr(const char *haystack, const char *needle, int needle_len, char *end)
{
const char *p = haystack;
const char ne = needle[needle_len-1];
if (needle_len == 1) {
return (char *)memchr(p, *needle, (end-p));
}
if (needle_len > end-haystack) {
return NULL;
}
end -= needle_len;
while (p <= end) {
if ((p = (char *)memchr(p, *needle, (end-p+1))) && ne == p[needle_len-1]) {
if (!memcmp(needle, p, needle_len-1)) {
return p;
}
}
if (p == NULL) {
return NULL;
}
p++;
}
return NULL;
}
static inline const void *zend_memrchr(const void *s, int c, size_t n)
{
register const unsigned char *e;
if (n <= 0) {
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;
}
BEGIN_EXTERN_C()
ZEND_API int increment_function(zval *op1);
ZEND_API int decrement_function(zval *op2);
ZEND_API void convert_scalar_to_number(zval *op TSRMLS_DC);
ZEND_API void _convert_to_cstring(zval *op ZEND_FILE_LINE_DC);
ZEND_API void _convert_to_string(zval *op ZEND_FILE_LINE_DC);
ZEND_API void convert_to_long(zval *op);
ZEND_API void convert_to_double(zval *op);
ZEND_API void convert_to_long_base(zval *op, int base);
ZEND_API void convert_to_null(zval *op);
ZEND_API void convert_to_boolean(zval *op);
ZEND_API void convert_to_array(zval *op);
ZEND_API void 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 long zval_get_long(zval *op TSRMLS_DC);
ZEND_API double zval_get_double(zval *op TSRMLS_DC);
ZEND_API zend_string *zval_get_string(zval *op TSRMLS_DC);
ZEND_API int add_char_to_string(zval *result, const zval *op1, const zval *op2);
ZEND_API int add_string_to_string(zval *result, const zval *op1, const zval *op2);
#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 double zend_string_to_double(const char *number, zend_uint length);
ZEND_API int zval_is_true(zval *op);
ZEND_API int compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int numeric_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int string_compare_function_ex(zval *result, zval *op1, zval *op2, zend_bool case_insensitive TSRMLS_DC);
ZEND_API int string_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int string_case_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
#if HAVE_STRCOLL
ZEND_API int string_locale_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
#endif
ZEND_API void zend_str_tolower(char *str, unsigned int length);
ZEND_API char *zend_str_tolower_copy(char *dest, const char *source, unsigned int length);
ZEND_API char *zend_str_tolower_dup(const char *source, unsigned int length);
ZEND_API int zend_binary_zval_strcmp(zval *s1, zval *s2);
ZEND_API int zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3);
ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2);
ZEND_API int zend_binary_zval_strncasecmp(zval *s1, zval *s2, zval *s3);
ZEND_API int zend_binary_strcmp(const char *s1, uint len1, const char *s2, uint len2);
ZEND_API int zend_binary_strncmp(const char *s1, uint len1, const char *s2, uint len2, uint length);
ZEND_API int zend_binary_strcasecmp(const char *s1, uint len1, const char *s2, uint len2);
ZEND_API int zend_binary_strncasecmp(const char *s1, uint len1, const char *s2, uint len2, uint length);
ZEND_API int zend_binary_strncasecmp_l(const char *s1, uint len1, const char *s2, uint len2, uint length);
ZEND_API void zendi_smart_strcmp(zval *result, zval *s1, zval *s2);
ZEND_API void zend_compare_symbol_tables(zval *result, HashTable *ht1, HashTable *ht2 TSRMLS_DC);
ZEND_API void zend_compare_arrays(zval *result, zval *a1, zval *a2 TSRMLS_DC);
ZEND_API void zend_compare_objects(zval *result, zval *o1, zval *o2 TSRMLS_DC);
ZEND_API int zend_atoi(const char *str, int str_len);
ZEND_API long zend_atol(const char *str, int str_len);
ZEND_API void zend_locale_sprintf_double(zval *op ZEND_FILE_LINE_DC);
END_EXTERN_C()
#define convert_to_ex_master(pzv, lower_type, upper_type) \
if (Z_TYPE_P(pzv)!=IS_##upper_type) { \
SEPARATE_ZVAL_IF_NOT_REF(pzv); \
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) { \
SEPARATE_ZVAL_IF_NOT_REF(pzv); \
convert_to_explicit_type(pzv, str_type); \
}
#define convert_to_boolean_ex(pzv) convert_to_ex_master(pzv, boolean, BOOL)
#define convert_to_long_ex(pzv) convert_to_ex_master(pzv, long, LONG)
#define convert_to_double_ex(pzv) convert_to_ex_master(pzv, double, DOUBLE)
#define convert_to_string_ex(pzv) convert_to_ex_master(pzv, string, STRING)
#define convert_to_array_ex(pzv) convert_to_ex_master(pzv, array, ARRAY)
#define convert_to_object_ex(pzv) convert_to_ex_master(pzv, object, OBJECT)
#define convert_to_null_ex(pzv) convert_to_ex_master(pzv, null, NULL)
#define convert_scalar_to_number_ex(pzv) \
if (Z_TYPE_P(pzv)!=IS_LONG && Z_TYPE_P(pzv)!=IS_DOUBLE) { \
SEPARATE_ZVAL_IF_NOT_REF(pzv); \
convert_scalar_to_number(pzv TSRMLS_CC); \
}
#if HAVE_SETLOCALE && defined(ZEND_WIN32) && !defined(ZTS) && defined(_MSC_VER) && (_MSC_VER >= 1400)
/* This is performance improvement of tolower() on Windows and VC2005
* 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 int fast_increment_function(zval *op1)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
#if defined(__GNUC__) && defined(__i386__)
__asm__(
"incl (%0)\n\t"
"jno 0f\n\t"
"movl $0x0, (%0)\n\t"
"movl $0x41e00000, 0x4(%0)\n\t"
"movl %1, %c2(%0)\n"
"0:"
:
: "r"(&op1->value),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "cc");
#elif defined(__GNUC__) && defined(__x86_64__)
__asm__(
"incq (%0)\n\t"
"jno 0f\n\t"
"movl $0x0, (%0)\n\t"
"movl $0x43e00000, 0x4(%0)\n\t"
"movl %1, %c2(%0)\n"
"0:"
:
: "r"(&op1->value),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "cc");
#else
if (UNEXPECTED(Z_LVAL_P(op1) == LONG_MAX)) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)LONG_MAX + 1.0);
} else {
Z_LVAL_P(op1)++;
}
#endif
return SUCCESS;
}
return increment_function(op1);
}
static zend_always_inline int fast_decrement_function(zval *op1)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
#if defined(__GNUC__) && defined(__i386__)
__asm__(
"decl (%0)\n\t"
"jno 0f\n\t"
"movl $0x00200000, (%0)\n\t"
"movl $0xc1e00000, 0x4(%0)\n\t"
"movl %1,%c2(%0)\n"
"0:"
:
: "r"(&op1->value),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "cc");
#elif defined(__GNUC__) && defined(__x86_64__)
__asm__(
"decq (%0)\n\t"
"jno 0f\n\t"
"movl $0x00000000, (%0)\n\t"
"movl $0xc3e00000, 0x4(%0)\n\t"
"movl %1,%c2(%0)\n"
"0:"
:
: "r"(&op1->value),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "cc");
#else
if (UNEXPECTED(Z_LVAL_P(op1) == LONG_MIN)) {
/* switch to double */
ZVAL_DOUBLE(op1, (double)LONG_MIN - 1.0);
} else {
Z_LVAL_P(op1)--;
}
#endif
return SUCCESS;
}
return decrement_function(op1);
}
static zend_always_inline int fast_add_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
#if defined(__GNUC__) && defined(__i386__)
__asm__(
"movl (%1), %%eax\n\t"
"addl (%2), %%eax\n\t"
"jo 0f\n\t"
"movl %%eax, (%0)\n\t"
"movl %3, %c5(%0)\n\t"
"jmp 1f\n"
"0:\n\t"
"fildl (%1)\n\t"
"fildl (%2)\n\t"
"faddp %%st, %%st(1)\n\t"
"movl %4, %c5(%0)\n\t"
"fstpl (%0)\n"
"1:"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "eax","cc");
#elif defined(__GNUC__) && defined(__x86_64__)
__asm__(
"movq (%1), %%rax\n\t"
"addq (%2), %%rax\n\t"
"jo 0f\n\t"
"movq %%rax, (%0)\n\t"
"movl %3, %c5(%0)\n\t"
"jmp 1f\n"
"0:\n\t"
"fildq (%1)\n\t"
"fildq (%2)\n\t"
"faddp %%st, %%st(1)\n\t"
"movl %4, %c5(%0)\n\t"
"fstpl (%0)\n"
"1:"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "rax","cc");
#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
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 TSRMLS_CC);
}
static zend_always_inline int fast_sub_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
#if defined(__GNUC__) && defined(__i386__)
__asm__(
"movl (%1), %%eax\n\t"
"subl (%2), %%eax\n\t"
"jo 0f\n\t"
"movl %%eax, (%0)\n\t"
"movl %3, %c5(%0)\n\t"
"jmp 1f\n"
"0:\n\t"
"fildl (%2)\n\t"
"fildl (%1)\n\t"
#if defined(__clang__) && (__clang_major__ < 2 || (__clang_major__ == 2 && __clang_minor__ < 10))
"fsubp %%st(1), %%st\n\t" /* LLVM bug #9164 */
#else
"fsubp %%st, %%st(1)\n\t"
#endif
"movl %4, %c5(%0)\n\t"
"fstpl (%0)\n"
"1:"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "eax","cc");
#elif defined(__GNUC__) && defined(__x86_64__)
__asm__(
"movq (%1), %%rax\n\t"
"subq (%2), %%rax\n\t"
"jo 0f\n\t"
"movq %%rax, (%0)\n\t"
"movl %3, %c5(%0)\n\t"
"jmp 1f\n"
"0:\n\t"
"fildq (%2)\n\t"
"fildq (%1)\n\t"
#if defined(__clang__) && (__clang_major__ < 2 || (__clang_major__ == 2 && __clang_minor__ < 10))
"fsubp %%st(1), %%st\n\t" /* LLVM bug #9164 */
#else
"fsubp %%st, %%st(1)\n\t"
#endif
"movl %4, %c5(%0)\n\t"
"fstpl (%0)\n"
"1:"
:
: "r"(&result->value),
"r"(&op1->value),
"r"(&op2->value),
"n"(IS_LONG),
"n"(IS_DOUBLE),
"n"(ZVAL_OFFSETOF_TYPE)
: "rax","cc");
#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
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 sub_function(result, op1, op2 TSRMLS_CC);
}
static zend_always_inline int fast_mul_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
long overflow;
ZEND_SIGNED_MULTIPLY_LONG(Z_LVAL_P(op1), Z_LVAL_P(op2), Z_LVAL_P(result), Z_DVAL_P(result), overflow);
Z_TYPE_INFO_P(result) = overflow ? IS_DOUBLE : IS_LONG;
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 mul_function(result, op1, op2 TSRMLS_CC);
}
static zend_always_inline int fast_div_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
#if 0
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG) && 0) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
if (UNEXPECTED(Z_LVAL_P(op2) == 0)) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE;
} else if (UNEXPECTED(Z_LVAL_P(op2) == -1 && Z_LVAL_P(op1) == LONG_MIN)) {
/* Prevent overflow error/crash */
ZVAL_DOUBLE(result, (double) LONG_MIN / -1);
} else if (EXPECTED(Z_LVAL_P(op1) % Z_LVAL_P(op2) == 0)) {
/* integer */
ZVAL_LONG(result, Z_LVAL_P(op1) / Z_LVAL_P(op2));
} else {
ZVAL_DOUBLE(result, ((double) Z_LVAL_P(op1)) / ((double)Z_LVAL_P(op2)));
}
return SUCCESS;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
if (UNEXPECTED(Z_DVAL_P(op2) == 0)) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE;
}
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) / Z_DVAL_P(op2));
return SUCCESS;
}
} else if (EXPECTED(Z_TYPE_P(op1) == IS_DOUBLE) && 0) {
if (EXPECTED(Z_TYPE_P(op2) == IS_DOUBLE)) {
if (UNEXPECTED(Z_DVAL_P(op2) == 0)) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE;
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
if (UNEXPECTED(Z_LVAL_P(op2) == 0)) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE;
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / ((double)Z_LVAL_P(op2)));
return SUCCESS;
}
}
#endif
return div_function(result, op1, op2 TSRMLS_CC);
}
static zend_always_inline int fast_mod_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG)) {
if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
if (UNEXPECTED(Z_LVAL_P(op2) == 0)) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE;
} else if (UNEXPECTED(Z_LVAL_P(op2) == -1)) {
/* Prevent overflow error/crash if op1==LONG_MIN */
ZVAL_LONG(result, 0);
return SUCCESS;
}
ZVAL_LONG(result, Z_LVAL_P(op1) % Z_LVAL_P(op2));
return SUCCESS;
}
}
return mod_function(result, op1, op2 TSRMLS_CC);
}
static zend_always_inline int fast_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
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));
}
}
compare_function(result, op1, op2 TSRMLS_CC);
return Z_LVAL_P(result) == 0;
}
static zend_always_inline int fast_not_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
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));
}
}
compare_function(result, op1, op2 TSRMLS_CC);
return Z_LVAL_P(result) != 0;
}
static zend_always_inline int fast_is_smaller_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
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));
}
}
compare_function(result, op1, op2 TSRMLS_CC);
return Z_LVAL_P(result) < 0;
}
static zend_always_inline int fast_is_smaller_or_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC)
{
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));
}
}
compare_function(result, op1, op2 TSRMLS_CC);
return Z_LVAL_P(result) <= 0;
}
#define ZEND_TRY_BINARY_OBJECT_OPERATION(opcode) \
if (Z_TYPE_P(op1) == IS_OBJECT && Z_OBJ_HANDLER_P(op1, do_operation)) { \
if (SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, op2 TSRMLS_CC)) { \
return SUCCESS; \
} \
} else if (Z_TYPE_P(op2) == IS_OBJECT && Z_OBJ_HANDLER_P(op2, do_operation)) { \
if (SUCCESS == Z_OBJ_HANDLER_P(op2, do_operation)(opcode, result, op1, op2 TSRMLS_CC)) { \
return SUCCESS; \
} \
}
#define ZEND_TRY_UNARY_OBJECT_OPERATION(opcode) \
if (Z_TYPE_P(op1) == IS_OBJECT && Z_OBJ_HANDLER_P(op1, do_operation) \
&& SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, NULL TSRMLS_CC) \
) { \
return SUCCESS; \
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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