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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"

#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) > (double)ZEND_LONG_MAX || (d) < (double)ZEND_LONG_MIN))
#else
	/* >= as (double)ZEND_LONG_MAX is outside signed range */
#	define ZEND_DOUBLE_FITS_LONG(d) (!((d) >= (double)ZEND_LONG_MAX || (d) < (double)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, p, needle_len-1)) {
					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 (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;
}


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, p, needle_len - 1)) {
					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 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 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 Z_TYPE_P(op) == IS_STRING ? zend_string_copy(Z_STR_P(op)) : _zval_get_string_func(op);
}

#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 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:
			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(zend_string *str);

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 zend_long 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, int str_len);
ZEND_API zend_long ZEND_FASTCALL zend_atol(const char *str, int 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 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;
	}
#elif 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", "memory");
#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", "memory");
#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 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;
	}
#elif 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", "memory");
#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", "memory");
#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 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);
	}
#elif defined(__GNUC__) && defined(__i386__) \
	&& !(4 == __GNUC__ && 8 == __GNUC_MINOR__) \
	&& !(4 == __GNUC__ && 9 == __GNUC_MINOR__ && (defined(__PIC__) || defined(__PIE__)))
	/* Position-independent builds fail with gcc-4.9.x */
	__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", "memory");
#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", "memory");
#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 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);
	}
#elif defined(__GNUC__) && defined(__i386__) && \
	!(4 == __GNUC__ && 8 == __GNUC_MINOR__) && \
	!(4 == __GNUC__ && 9 == __GNUC_MINOR__ && (defined(__PIC__) || defined(__PIE__)))
	/* Position-independent builds fail with gcc-4.9.x */
	__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", "memory");
#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", "memory");
#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 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)) {
			if (Z_STR_P(op1) == Z_STR_P(op2)) {
				return 1;
			} else if (Z_STRVAL_P(op1)[0] > '9' || Z_STRVAL_P(op2)[0] > '9') {
				if (Z_STRLEN_P(op1) != Z_STRLEN_P(op2)) {
					return 0;
				} else {
					return memcmp(Z_STRVAL_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op1)) == 0;
				}
			} else {
				return zendi_smart_strcmp(Z_STR_P(op1), Z_STR_P(op2)) == 0;
			}
		}
	}
	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)) {
		if (Z_STR_P(op1) == Z_STR_P(op2)) {
			return 1;
		} else if (Z_STRVAL_P(op1)[0] > '9' || Z_STRVAL_P(op2)[0] > '9') {
			if (Z_STRLEN_P(op1) != Z_STRLEN_P(op2)) {
				return 0;
			} else {
				return memcmp(Z_STRVAL_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op1)) == 0;
			}
		} else {
			return zendi_smart_strcmp(Z_STR_P(op1), Z_STR_P(op2)) == 0;
		}
	}
	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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