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Adopt preserve_none attribute for MUST_TAIL optimization #636

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Merged
jserv merged 1 commit into from
Dec 12, 2025
Merged

Adopt preserve_none attribute for MUST_TAIL optimization #636

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4 changes: 4 additions & 0 deletions src/common.h
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Original file line number Diff line number Diff line change
Expand Up @@ -191,7 +191,11 @@ static inline uint8_t ilog2(uint32_t x)
* even without optimizations enabled.
*/
#if defined(__has_attribute) && __has_attribute(musttail)
#if __has_attribute(preserve_none)
#define MUST_TAIL __attribute__((musttail)) __attribute__((preserve_none))
#else
#define MUST_TAIL __attribute__((musttail))
#endif
#else
#define MUST_TAIL
#endif
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