https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113576
--- Comment #50 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #49)
> (In reply to Uroš Bizjak from comment #48)
> > The runtime testcase fails on non-AVX512F x86 targets due to:
> >
> > /* { dg-do run } */
> > /* { dg-options "-O3" } */
> > /* { dg-additional-options "-march=skylake-avx512" { target { x86_64-*-*
> > i?86-*-* } } } */
> >
> > but check_vect() only checks runtime support up to AVX2.
>
> Hmm, can we fix that? We could change the above to { target avx512f_runtime
> }
> but that really only checks for AVX512F, not say AVX512VL ...
>
> I do remember using -mavx512vl wasn't enough to trigger the miscompile
> nor did it trigger with -march=znver4 ... so I stuck to skylake-avx512 :/
It is certainly preferable to add -mavx512{bw,dq,vl} or whatever the testcase
actually needs and then one can
#define AVX512BW
#define AVX512DQ
#define AVX512VL
#include "avx512-check.h"
and get checks for all those.
