diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/pg_config.h.in | 3 | ||||
| -rw-r--r-- | src/include/port/pg_bitutils.h | 17 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in index c6f055b3905..92f0616c400 100644 --- a/src/include/pg_config.h.in +++ b/src/include/pg_config.h.in @@ -712,6 +712,9 @@ /* Define to 1 to use Intel SSE 4.2 CRC instructions with a runtime check. */ #undef USE_SSE42_CRC32C_WITH_RUNTIME_CHECK +/* Define to 1 to use SVE popcount instructions with a runtime check. */ +#undef USE_SVE_POPCNT_WITH_RUNTIME_CHECK + /* Define to build with systemd support. (--with-systemd) */ #undef USE_SYSTEMD diff --git a/src/include/port/pg_bitutils.h b/src/include/port/pg_bitutils.h index a387f77c2c0..c7901bf8ddc 100644 --- a/src/include/port/pg_bitutils.h +++ b/src/include/port/pg_bitutils.h @@ -324,6 +324,23 @@ extern uint64 pg_popcount_avx512(const char *buf, int bytes); extern uint64 pg_popcount_masked_avx512(const char *buf, int bytes, bits8 mask); #endif +#elif POPCNT_AARCH64 +/* Use the Neon version of pg_popcount{32,64} without function pointer. */ +extern int pg_popcount32(uint32 word); +extern int pg_popcount64(uint64 word); + +/* + * We can try to use an SVE-optimized pg_popcount() on some systems For that, + * we do use a function pointer. + */ +#ifdef USE_SVE_POPCNT_WITH_RUNTIME_CHECK +extern PGDLLIMPORT uint64 (*pg_popcount_optimized) (const char *buf, int bytes); +extern PGDLLIMPORT uint64 (*pg_popcount_masked_optimized) (const char *buf, int bytes, bits8 mask); +#else +extern uint64 pg_popcount_optimized(const char *buf, int bytes); +extern uint64 pg_popcount_masked_optimized(const char *buf, int bytes, bits8 mask); +#endif + #else /* Use a portable implementation -- no need for a function pointer. */ extern int pg_popcount32(uint32 word); |