postgres.git / summary / log / commit / refs

commit    6766264262851686481dee4401541ee8cd874c2a
Author:   John Naylor <john.naylor@postgresql.org>
Date:     Tue May 05 11:51:07 2026 +0000
First released in: 18.4

    Add missing guard for __builtin_constant_p
    
    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


 src/include/port/pg_crc32c.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/include/port/pg_crc32c.h b/src/include/port/pg_crc32c.h
index e6085ca50d1..2f22e176a66 100644
--- a/src/include/port/pg_crc32c.h
+++ b/src/include/port/pg_crc32c.h
@@ -70,7 +70,8 @@ static inline
 pg_crc32c
 pg_comp_crc32c_dispatch(pg_crc32c crc, const void *data, size_t len)
 {
-	if (__builtin_constant_p(len) && len < 32)
+#ifdef HAVE_PG_INTEGER_CONSTANT_P
+	if (pg_integer_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_PG_INTEGER_CONSTANT_P */
 }
 
 #elif defined(USE_SSE42_CRC32C_WITH_RUNTIME_CHECK)


[parent: 648818ba3876]