https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89929
--- Comment #18 from Martin Liška <marxin at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #17)
> >
> > @Martin:
> >
> > Thank you for the detailed answer. This could work for now. I have a few
> > questions about it:
> >
> > Wouldn't that create issues in the future if AMD decide to release avx512
> > for their CPUs?
>
> No, that will only require to add target(arch=amd-name-with-avx512).
>
> >
> > In case we are using C style target annotation (and not function
> > multi-versioning), should we also use target(arch=skylake-avx512) instead of
> > target(avx512bw)?
For C style, the functionality will be preserved as is.
>
> Yes. Let me discuss that with H.J.
>
> >
> > Also it seems that target("arch=foo") fails for my simple example with
> > target specific option mismatch error (but works in clang).
> >
> > If I change target to avx2 it compiles again.
This looks to me a bug, I'll create a separated PR for that.
Thanks
> >
> > Cheers,
> >
> > Nick
>
> Let me investigate that.
