| 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> |
| Subject: | RE: Use __attribute__((target(sse4.2))) for SSE42 CRC32C |
| Date: | 2024-11-07 21:42:58 |
| Message-ID: | PH8PR11MB82866E2249ABC8AA2E97497CFB5C2@PH8PR11MB8286.namprd11.prod.outlook.com |
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| Lists: | pgsql-hackers |
Here is the updated patch with the #if defined(__has_attribute) && __has_attribute (target) guard.
> Oh, you are right, sorry.
No worries! 😊
> Is the idea that we will put both "choose" functions in one file and the actual
> CRC-32C code in another? I'm okay with that.
Yup, there can only be one choose function that has to pick between avx512, sse42 and scalar code.
Raghuveer
| Attachment | Content-Type | Size |
|---|---|---|
| v2-0001-Use-__attribute__-target-sse4.2-for-SSE42-CRC32C.patch | application/octet-stream | 11.2 KB |
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