On Wed, May 24, 2023 at 1:24 PM Alexandre Oliva via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
>
> The expected results for signbit-2 only arise on x86 with avx512f
> disabled and sse2 enabled. The patch already disables avx512f
> explicitly, but it fails to enable sse2.
>
> Bootstrapped on x86_64-linux-gnu. Also tested on ppc- and x86-vx7r2
> with gcc-12.
>
> for gcc/testsuite/ChangeLog
>
> * gcc.dg/signbit-2.c: Add -msse2 on x86.
Ok.
> ---
> gcc/testsuite/gcc.dg/signbit-2.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/signbit-2.c
> b/gcc/testsuite/gcc.dg/signbit-2.c
> index d7b406effc62d..62bb4047d7421 100644
> --- a/gcc/testsuite/gcc.dg/signbit-2.c
> +++ b/gcc/testsuite/gcc.dg/signbit-2.c
> @@ -2,7 +2,7 @@
> /* { dg-options "-O3 -fdump-tree-optimized" } */
>
> /* This test does not work when the truth type does not match vector type.
> */
> -/* { dg-additional-options "-mno-avx512f" { target { i?86-*-* x86_64-*-* } }
> } */
> +/* { dg-additional-options "-msse2 -mno-avx512f" { target { i?86-*-*
> x86_64-*-* } } } */
> /* { dg-additional-options "-march=armv8-a" { target aarch64_sve } } */
> /* { dg-additional-options "-maltivec" { target powerpc_altivec_ok } } */
> /* { dg-skip-if "no fallback for MVE" { arm_mve } } */
>
> --
> Alexandre Oliva, happy hacker https://FSFLA.org/blogs/lxo/
> Free Software Activist GNU Toolchain Engineer
> Disinformation flourishes because many people care deeply about injustice
> but very few check the facts. Ask me about <https://stallmansupport.org>
--
BR,
Hongtao
