RE: Use attribute((target(sse4.2))) for SSE42 CRC32C

Devulapalli, Raghuveer <raghuveer.devulapalli@intel.com>

From: "Devulapalli, Raghuveer" <raghuveer.devulapalli@intel.com>

To: Nathan Bossart <nathandbossart@gmail.com>

Cc: "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>, "Shankaran, Akash" <akash.shankaran@intel.com>

Date: 2024-11-22T21:00:01Z

Lists: pgsql-hackers

Attachments

v5-0001-Use-__attribute__-target-sse4.2-for-SSE42-CRC32C.patch (application/octet-stream) patch v5-0001
v5-0002-Use-consistent-logic-in-configure-and-meson-to-ge.patch (application/octet-stream) patch v5-0002

> I think we should still use the test program even when __SSE4_2__ is defined, but
> we can use that macro to determine whether to use a runtime check.  I think that
> would keep autoconf and meson consistent.

Sure. Updated patch.

Commits

Use __attribute__((target(...))) for SSE4.2 CRC-32C support.
- 4b03a27fafc9 18.0 landed
Move check for USE_AVX512_POPCNT_WITH_RUNTIME_CHECK.
- 4225276e2540 18.0 landed
Remove MSVC scripts
- 1301c80b2167 17.0 cited