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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 30 Mar 2022 06:26:23 -0700
Message-ID: <CAMe9rOoy-1xfSFp4h08=ZhGCb5KvwHQ7MhAD_PzqghfwG+FzAw@mail.gmail.com>
Subject: Re: [PATCH] x86: Also use Yw in *ssse3_pshufbv8qi3 clobber
To: GCC Patches <gcc-patches@gcc.gnu.org>
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On Mon, Mar 28, 2022 at 9:37 AM H.J. Lu <hjl.tools@gmail.com> wrote:
>
>         PR target/105068
>         * config/i386/sse.md (*ssse3_pshufbv8qi3): Also replace "Yv" with
>         "Yw" in clobber.
> ---
>  gcc/config/i386/sse.md | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
> index 01543afd111..1f9c496e7c0 100644
> --- a/gcc/config/i386/sse.md
> +++ b/gcc/config/i386/sse.md
> @@ -20764,7 +20764,7 @@ (define_insn_and_split "*ssse3_pshufbv8qi3"
>                       (match_operand:V4SI 4 "reg_or_const_vector_operand"
>                                           "i,3,3")]
>                      UNSPEC_PSHUFB))
> -   (clobber (match_scratch:V4SI 3 "=X,&x,&Yv"))]
> +   (clobber (match_scratch:V4SI 3 "=X,&x,&Yw"))]
>    "(TARGET_MMX || TARGET_MMX_WITH_SSE) && TARGET_SSSE3"
>    "@
>     pshufb\t{%2, %0|%0, %2}
> --
> 2.35.1
>

I am backporting this to release branches.

Thanks.

-- 
H.J.