Re: SSE intrinsics disappearing from Clang 14+
Martijn van Beurden <[email protected]> Tue, 27 Sep 2022 08:28:36 +0200
| Newsgroups | gmane.comp.audio.compression.flac.devel |
|---|---|
| Message-ID | <CADQbU6_S2LTS57CMfEaodWjiua=zem8p4tg+wp7p7SvoDR7p0g@mail.gmail.com> |
Op ma 26 sep. 2022 om 07:26 schreef Martijn van Beurden <[email protected]>: > Op zo 25 sep. 2022 om 23:55 schreef Christian Weisgerber < > [email protected]>: > >> The checks for SSE*/AVX* intrinsics in include/private/cpu.h are >> suffering attrition with Clang 14 and newer. >> >> Clang 13: all are defined on x86: SSE, SSE2, SSSE3, SSE4.1, AVX, AVX2, >> FMA. >> Clang 14: SSSE3 and AVX disappear. >> Clang 15: only SSE and SSE2 are left, I'm told. >> >> The suggestion at... >> >> https://lists.freebsd.org/archives/freebsd-current/2022-September/002633.html >> ... is to check for _mm* intrinsics instead of __builtin_*. >> > > Maybe at this point it is reasonable to just start assuming support? That > would mean dropping support (with default settings that is) on x86_64 for > all Clang that do not supply AVX/AVX2/FMA intrinsics? That is how it works > for GCC currently, intrinsics are supported for GCC 4.9 or later. > I've opened a PR with a possible fix here: https://github.com/xiph/flac/pull/469 Please comment. _______________________________________________ flac-dev mailing list [email protected] http://lists.xiph.org/mailman/listinfo/flac-dev