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Add missing guard for __builtin_constant_p

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Oversight in commit e2809e3a1. While at it, use pg_integer_constant_p
in master.

Discussion: https://postgr.es/m/CANWCAZbOha-x5MCreQn3TRA56VdKWNMAKMy3fAV1kJSw9Vp4pw@mail.gmail.com
Backpatch-through: 18
This commit is contained in:
John Naylor
2026-05-05 18:51:27 +07:00
parent c318777da8
commit 936d8974c3
1 changed files with 4 additions and 0 deletions
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src/include/port/pg_crc32c.h
+4
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@@ -70,6 +70,7 @@ static inline
pg_crc32c
pg_comp_crc32c_dispatch(pg_crc32c crc, const void *data, size_t len)
{
#ifdef HAVE__BUILTIN_CONSTANT_P
if (__builtin_constant_p(len) && len < 32)
{
const unsigned char *p = (const unsigned char *) data;
@@ -91,6 +92,9 @@ pg_comp_crc32c_dispatch(pg_crc32c crc, const void *data, size_t len)
else
/* Otherwise, use a runtime check for AVX-512 instructions. */
return pg_comp_crc32c(crc, data, len);
#else
return pg_comp_crc32c(crc, data, len);
#endif /* HAVE__BUILTIN_CONSTANT_P */
}
#elif defined(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK)