/* +----------------------------------------------------------------------+ | 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 | | Zeev Suraski | | Dmitry Stogov | +----------------------------------------------------------------------+ */ #ifndef ZEND_OPERATORS_H #define ZEND_OPERATORS_H #include #include #include #ifdef __GNUC__ #include #endif #ifdef HAVE_IEEEFP_H #include #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) > (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+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, const 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_API void ZEND_FASTCALL _convert_to_string(zval *op); 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_ex(tmp, 0); } } /* 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)); } #define convert_to_string(op) if (Z_TYPE_P(op) != IS_STRING) { _convert_to_string((op)); } 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_streq(zend_string *s1, zend_string *s2); 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) do { \ if (Z_TYPE_INFO_P(pzv) > IS_TRUE) { \ convert_to_boolean(pzv); \ } else if (Z_TYPE_INFO_P(pzv) < IS_FALSE) { \ ZVAL_FALSE(pzv); \ } \ } while (0) #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__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__) __asm__ goto( "addl $1,(%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( "addq $1,(%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__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__) __asm__ goto( "subl $1,(%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( "subq $1,(%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__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__) __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__) && !(4 == __GNUC__ && 8 == __GNUC_MINOR__) __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_streq(s1, s2); } } 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 */