__builtin_expect 102 Zend/zend_portability.h if (__builtin_expect(!(c), 0)) __builtin_unreachable(); \ __builtin_expect 303 Zend/zend_portability.h # define EXPECTED(condition) __builtin_expect(!!(condition), 1) __builtin_expect 304 Zend/zend_portability.h # define UNEXPECTED(condition) __builtin_expect(!!(condition), 0) __builtin_expect 228 ext/pcre/pcrelib/sljit/sljitConfigInternal.h #define SLJIT_LIKELY(x) __builtin_expect((x), 1) __builtin_expect 229 ext/pcre/pcrelib/sljit/sljitConfigInternal.h #define SLJIT_UNLIKELY(x) __builtin_expect((x), 0)