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Use C23 unreachable() when possible #19077

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Merged
merged 1 commit into from
Jul 9, 2025
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Use C23 unreachable() when possible #19077

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5 changes: 4 additions & 1 deletion Zend/zend_portability.h
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Original file line number Diff line number Diff line change
Expand Up @@ -109,7 +109,10 @@
# define ZEND_ASSERT(c) ZEND_ASSUME(c)
#endif

#ifdef PHP_HAVE_BUILTIN_UNREACHABLE
/* use C23 unreachable() from <stddef.h> if possible */
#ifdef unreachable
# define _ZEND_UNREACHABLE() unreachable()
#elif defined(PHP_HAVE_BUILTIN_UNREACHABLE)
# define _ZEND_UNREACHABLE() __builtin_unreachable()
#else
# define _ZEND_UNREACHABLE() ZEND_ASSUME(0)
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