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(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 #include #include #ifdef HAVE_IEEEFP_H /** * On FreeBSD with ubsan/clang we get the following: * `/usr/include/machine/ieeefp.h:161:17: runtime error: left shift of negative value -1` * `SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /usr/include/machine/ieeefp.h:161:17` * ... * `_newcw |= (~_m << FP_MSKS_OFF) & FP_MSKS_FLD;` **/ # if __has_feature(undefined_behavior_sanitizer) && defined(__FreeBSD__) && defined(__clang__) # pragma clang attribute push (__attribute__((no_sanitize("undefined"))), apply_to=function) # endif # include # if __has_feature(undefined_behavior_sanitizer) && defined(__FreeBSD__) && defined(__clang__) # pragma clang attribute pop # endif #endif #include "zend_portability.h" #include "zend_strtod.h" #include "zend_multiply.h" #include "zend_object_handlers.h" #define LONG_SIGN_MASK ZEND_LONG_MIN BEGIN_EXTERN_C() ZEND_API zend_result ZEND_FASTCALL add_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL sub_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL mul_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL pow_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL div_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL mod_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL boolean_xor_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL boolean_not_function(zval *result, zval *op1); ZEND_API zend_result ZEND_FASTCALL bitwise_not_function(zval *result, zval *op1); ZEND_API zend_result ZEND_FASTCALL bitwise_or_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL bitwise_and_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL bitwise_xor_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL shift_left_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL shift_right_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL concat_function(zval *result, zval *op1, zval *op2); ZEND_API bool ZEND_FASTCALL zend_is_identical(const zval *op1, const zval *op2); ZEND_API zend_result ZEND_FASTCALL is_equal_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL is_identical_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL is_not_identical_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL is_not_equal_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL is_smaller_function(zval *result, zval *op1, zval *op2); ZEND_API zend_result ZEND_FASTCALL is_smaller_or_equal_function(zval *result, zval *op1, zval *op2); ZEND_API bool ZEND_FASTCALL zend_class_implements_interface(const zend_class_entry *class_ce, const zend_class_entry *interface_ce); ZEND_API bool ZEND_FASTCALL instanceof_function_slow(const zend_class_entry *instance_ce, const zend_class_entry *ce); static zend_always_inline bool instanceof_function( const zend_class_entry *instance_ce, const zend_class_entry *ce) { return instance_ce == ce || instanceof_function_slow(instance_ce, ce); } ZEND_API bool zend_string_only_has_ascii_alphanumeric(const zend_string *str); /** * 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 uint8_t ZEND_FASTCALL _is_numeric_string_ex(const char *str, size_t length, zend_long *lval, double *dval, bool allow_errors, int *oflow_info, bool *trailing_data); 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 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; } /* Used to convert a string float to integer during an (int) cast */ 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; } /* }}} */ static zend_always_inline bool zend_is_long_compatible(double d, zend_long l) { return (double)l == d; } ZEND_API void zend_incompatible_double_to_long_error(double d); ZEND_API void zend_incompatible_string_to_long_error(const zend_string *s); static zend_always_inline zend_long zend_dval_to_lval_safe(double d) { zend_long l = zend_dval_to_lval(d); if (!zend_is_long_compatible(d, l)) { zend_incompatible_double_to_long_error(d); } return l; } #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 uint8_t is_numeric_string_ex(const char *str, size_t length, zend_long *lval, double *dval, bool allow_errors, int *oflow_info, bool *trailing_data) { if (*str > '9') { return 0; } return _is_numeric_string_ex(str, length, lval, dval, allow_errors, oflow_info, trailing_data); } static zend_always_inline uint8_t is_numeric_string(const char *str, size_t length, zend_long *lval, double *dval, bool allow_errors) { return is_numeric_string_ex(str, length, lval, dval, allow_errors, NULL, NULL); } ZEND_API uint8_t 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; size_t off_s; ZEND_ASSERT(end >= p); if (needle_len == 1) { return (const char *)memchr(p, *needle, (end-p)); } else if (UNEXPECTED(needle_len == 0)) { return p; } off_s = (size_t)(end - p); if (needle_len > off_s) { return NULL; } if (EXPECTED(off_s < 1024 || needle_len < 9)) { /* glibc memchr is faster when needle is too short */ const char ne = needle[needle_len-1]; end -= needle_len; while (p <= end) { if ((p = (const char *)memchr(p, *needle, (end-p+1)))) { if (ne == p[needle_len-1] && !memcmp(needle+1, p+1, needle_len-2)) { return p; } } else { 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) { #if defined(HAVE_MEMRCHR) && !defined(i386) /* On x86 memrchr() doesn't use SSE/AVX, so inlined version is faster */ return (const void*)memrchr(s, c, n); #else 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 == (unsigned char)c) { return (const void *)e; } } return NULL; #endif } 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; ptrdiff_t off_p; size_t off_s; if (needle_len == 0) { return p; } 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)) { const char ne = needle[needle_len-1]; p -= needle_len; do { p = (const char *)zend_memrchr(haystack, *needle, (p - haystack) + 1); if (!p) { return NULL; } if (ne == p[needle_len-1] && !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); } } static zend_always_inline size_t zend_strnlen(const char* s, size_t maxlen) { #if defined(HAVE_STRNLEN) return strnlen(s, maxlen); #else const char *p = (const char *)memchr(s, '\0', maxlen); return p ? p-s : maxlen; #endif } ZEND_API zend_result ZEND_FASTCALL increment_function(zval *op1); ZEND_API zend_result ZEND_FASTCALL decrement_function(zval *op2); ZEND_API void ZEND_FASTCALL convert_scalar_to_number(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_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 zend_long ZEND_FASTCALL zval_get_long_func(const zval *op, bool is_strict); ZEND_API zend_long ZEND_FASTCALL zval_try_get_long(const zval *op, bool *failed); ZEND_API double ZEND_FASTCALL zval_get_double_func(const zval *op); ZEND_API zend_string* ZEND_FASTCALL zval_get_string_func(zval *op); ZEND_API zend_string* ZEND_FASTCALL zval_try_get_string_func(zval *op); static zend_always_inline zend_long zval_get_long(const zval *op) { return EXPECTED(Z_TYPE_P(op) == IS_LONG) ? Z_LVAL_P(op) : zval_get_long_func(op, false); } static zend_always_inline zend_long zval_get_long_ex(const zval *op, bool is_strict) { return EXPECTED(Z_TYPE_P(op) == IS_LONG) ? Z_LVAL_P(op) : zval_get_long_func(op, is_strict); } static zend_always_inline double zval_get_double(const 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); } } /* Like zval_get_string, but returns NULL if the conversion fails with an exception. */ static zend_always_inline zend_string *zval_try_get_string(zval *op) { if (EXPECTED(Z_TYPE_P(op) == IS_STRING)) { zend_string *ret = zend_string_copy(Z_STR_P(op)); ZEND_ASSUME(ret != NULL); return ret; } else { return zval_try_get_string_func(op); } } /* Like zval_get_tmp_string, but returns NULL if the conversion fails with an exception. */ static zend_always_inline zend_string *zval_try_get_tmp_string(zval *op, zend_string **tmp) { if (EXPECTED(Z_TYPE_P(op) == IS_STRING)) { zend_string *ret = Z_STR_P(op); *tmp = NULL; ZEND_ASSUME(ret != NULL); return ret; } else { return *tmp = zval_try_get_string_func(op); } } /* Like convert_to_string(), but returns whether the conversion succeeded and does not modify the * zval in-place if it fails. */ ZEND_API bool ZEND_FASTCALL _try_convert_to_string(zval *op); static zend_always_inline bool try_convert_to_string(zval *op) { if (Z_TYPE_P(op) == IS_STRING) { return 1; } return _try_convert_to_string(op); } /* 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_string(op) if (Z_TYPE_P(op) != IS_STRING) { _convert_to_string((op)); } ZEND_API int ZEND_FASTCALL zend_is_true(const zval *op); ZEND_API bool ZEND_FASTCALL zend_object_is_true(const zval *op); #define zval_is_true(op) \ zend_is_true(op) static zend_always_inline bool i_zend_is_true(const zval *op) { bool 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; } /* Indicate that two values cannot be compared. This value should be returned for both orderings * of the operands. This implies that all of ==, <, <= and >, >= will return false, because we * canonicalize >/>= to value) : "cc", "memory" : overflow); return; overflow: ZEND_ATTRIBUTE_COLD_LABEL ZVAL_DOUBLE(op1, (double)ZEND_LONG_MAX + 1.0); #elif ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && defined(__aarch64__) __asm__ goto ( "ldr x5, [%0]\n\t" "adds x5, x5, 1\n\t" "bvs %l1\n" "str x5, [%0]" : : "r"(&op1->value) : "x5", "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 ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && defined(__aarch64__) __asm__ goto ( "ldr x5, [%0]\n\t" "subs x5 ,x5, 1\n\t" "bvs %l1\n" "str x5, [%0]" : : "r"(&op1->value) : "x5", "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 ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && defined(__aarch64__) __asm__ goto( "ldr x5, [%1]\n\t" "ldr x6, [%2]\n\t" "adds x5, x5, x6\n\t" "bvs %l5\n\t" "mov w6, %3\n\t" "str x5, [%0]\n\t" "str w6, [%0, %c4]\n" : : "r"(&result->value), "r"(&op1->value), "r"(&op2->value), "n"(IS_LONG), "n"(ZVAL_OFFSETOF_TYPE) : "x5", "x6", "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 void fast_long_sub_function(zval *result, zval *op1, zval *op2) { #if ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && 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 ZEND_USE_ASM_ARITHMETIC && defined(__aarch64__) __asm__ goto( "ldr x5, [%1]\n\t" "ldr x6, [%2]\n\t" "subs x5, x5, x6\n\t" "bvs %l5\n\t" "mov w6, %3\n\t" "str x5, [%0]\n\t" "str w6, [%0, %c4]\n" : : "r"(&result->value), "r"(&op1->value), "r"(&op2->value), "n"(IS_LONG), "n"(ZVAL_OFFSETOF_TYPE) : "x5", "x6", "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 bool 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 bool fast_equal_check_function(zval *op1, zval *op2) { 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)); } } return zend_compare(op1, op2) == 0; } static zend_always_inline bool fast_equal_check_long(zval *op1, zval *op2) { if (EXPECTED(Z_TYPE_P(op2) == IS_LONG)) { return Z_LVAL_P(op1) == Z_LVAL_P(op2); } return zend_compare(op1, op2) == 0; } static zend_always_inline bool fast_equal_check_string(zval *op1, zval *op2) { if (EXPECTED(Z_TYPE_P(op2) == IS_STRING)) { return zend_fast_equal_strings(Z_STR_P(op1), Z_STR_P(op2)); } return zend_compare(op1, op2) == 0; } static zend_always_inline bool 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 bool 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); } /* 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); ZEND_API zend_string* ZEND_FASTCALL zend_ulong_to_str(zend_ulong num); ZEND_API zend_string* ZEND_FASTCALL zend_u64_to_str(uint64_t num); ZEND_API zend_string* ZEND_FASTCALL zend_i64_to_str(int64_t num); ZEND_API zend_string* ZEND_FASTCALL zend_double_to_str(double 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)); } } /* }}} */ static zend_always_inline bool zend_strnieq(const char *ptr1, const char *ptr2, size_t num) { const char *end = ptr1 + num; while (ptr1 < end) { if (zend_tolower_ascii(*ptr1++) != zend_tolower_ascii(*ptr2++)) { return 0; } } return 1; } static zend_always_inline const char * zend_memnistr(const char *haystack, const char *needle, size_t needle_len, const char *end) { ZEND_ASSERT(end >= haystack); if (UNEXPECTED(needle_len == 0)) { return haystack; } if (UNEXPECTED(needle_len > (size_t)(end - haystack))) { return NULL; } const char first_lower = zend_tolower_ascii(*needle); const char first_upper = zend_toupper_ascii(*needle); const char *p_lower = (const char *)memchr(haystack, first_lower, end - haystack); const char *p_upper = NULL; if (first_lower != first_upper) { // If the needle length is 1 we don't need to look beyond p_lower as it is a guaranteed match size_t upper_search_length = needle_len == 1 && p_lower != NULL ? p_lower - haystack : end - haystack; p_upper = (const char *)memchr(haystack, first_upper, upper_search_length); } const char *p = !p_upper || (p_lower && p_lower < p_upper) ? p_lower : p_upper; if (needle_len == 1) { return p; } const char needle_end_lower = zend_tolower_ascii(needle[needle_len - 1]); const char needle_end_upper = zend_toupper_ascii(needle[needle_len - 1]); end -= needle_len; while (p && p <= end) { if (needle_end_lower == p[needle_len - 1] || needle_end_upper == p[needle_len - 1]) { if (zend_strnieq(needle + 1, p + 1, needle_len - 2)) { return p; } } if (p_lower == p) { p_lower = (const char *)memchr(p_lower + 1, first_lower, end - p_lower); } if (p_upper == p) { p_upper = (const char *)memchr(p_upper + 1, first_upper, end - p_upper); } p = !p_upper || (p_lower && p_lower < p_upper) ? p_lower : p_upper; } return NULL; } END_EXTERN_C() #endif