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

From: "Devulapalli, Raghuveer" <raghuveer(dot)devulapalli(at)intel(dot)com>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Shankaran, Akash" <akash(dot)shankaran(at)intel(dot)com>
Subject: RE: Use __attribute__((target(sse4.2))) for SSE42 CRC32C
Date: 2024-11-21 23:07:59
Message-ID: PH8PR11MB828629702AF626E7D740872BFB222@PH8PR11MB8286.namprd11.prod.outlook.com
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> I think it is in pretty good shape. After a read-through, the only thing that stands
> out to me is the difference in configure tests between autoconf and meson. I
> think we should consider picking one approach, although I'm not sure I have a
> strong preference.

Thanks for the review! We can actually leverage meson's built in option to check for a macro: cc.get_define('__SSE4_2__') != ''. This should keep the logic consistent across configure and meson.

Attachment Content-Type Size
v4-0001-Use-__attribute__-target-sse4.2-for-SSE42-CRC32C.patch application/octet-stream 11.2 KB
v4-0002-Use-consistent-logic-in-configure-and-meson-to-ge.patch application/octet-stream 1.4 KB

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