Re: [PATCH] Fix vect-simd-clone testcase dump scanning

[Jakub Jelinek <jakub@redhat.com>]

On Fri, Apr 14, 2023 at 11:42:55AM +0200, Richard Biener via Gcc-patches wrote:
> This replaces i686*-*-* && { ! lp64 } with the appropriate
> { i?86-*-* x86_64-*-* } && { ! lp64 } for the testcases and
> also amends the e variants checking last variant for avx.
> I've used avx in the dump scanning, not avx_runtime, since
> the dumps get produced when one would not execute but only
> compile them.  The f varaints lack AVX checking, I didn't

avx_runtime was actually intentional.  The thing is that the testcase
has
/* { dg-additional-options "-mavx" { target avx_runtime } } */
So, if avx_runtime, we know we are compiled with -mavx.  If not, we don't
really know, it could be with -mavx because user configured gcc to default
to -mavx through some --with-arch=, or because it was tested with
--target_board=unix/-mavx etc.
If we wanted to make sure it is exact, we could do
/* { dg-additional-options "-mno-avx" { target i?86-*-* x86_64-*-* } } */
/* { dg-additional-options "-mavx" { target avx_runtime } } */
and then avx_runtime can be actually trusted.

	Jakub