Re: [PATCH] x86: Compile vect-shiftv[48]qi.c with -mno-ssse3 -mtune=generic

[Uros Bizjak]

On Thu, Aug 20, 2026 at 4:37 AM H.J. Lu <hjl.to...@gmail.com> wrote:
>
> Compile vect-shiftv[48]qi.c with -mno-ssse3 -mtune=generic to avoid
>
> FAIL: gcc.target/i386/vect-shiftv4qi.c scan-assembler-times psllw 2
> FAIL: gcc.target/i386/vect-shiftv4qi.c scan-assembler-times psrlw 5
> FAIL: gcc.target/i386/vect-shiftv8qi.c scan-assembler-times psllw 2
> FAIL: gcc.target/i386/vect-shiftv8qi.c scan-assembler-times psrlw 5
>
> due to SSSE3/SSE4 instructions and different code sequences when SSSE3
> is enabled by default and a different default cost mode is in use.
>
> PR testsuite/126923
> * gcc.target/i386/vect-shiftv4qi.c (dg-options): Replace
> "-mno-avx2 -mno-avx512vl" with "-mno-ssse3 -mtune=generic".
> * gcc.target/i386/vect-shiftv8qi.c (dg-options): Likewise.

OK.

Thanks,
Uros.