This caused
XPASS: gcc.target/i386/pr92658-avx512vl.c scan-assembler-times vpmovqw 2
FAIL: gcc.target/i386/pr92658-avx512vl.c scan-assembler-times vpmovdw 1
XPASS: gcc.target/i386/pr92658-avx512vl.c scan-assembler-times vpmovdw 2
liuhongt via Gcc-patches <gcc-patches@gcc.gnu.org> 于2021年7月1日周四 下午3:45写道：
>
> Bootstrapped and regtested on x86_64-linux-gnu{-m32,}.
> Pushed to trunk as abvious fix.
>
> gcc/ChangeLog
>
> * config/i386/sse.md (trunc<mode><pmov_dst_4>2): Refined to ..
> (trunc<mode><pmov_dst_4_lower>2): this.
> ---
> gcc/config/i386/sse.md | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
> index ffcc0c81964..c6be2aa144b 100644
> --- a/gcc/config/i386/sse.md
> +++ b/gcc/config/i386/sse.md
> @@ -11199,12 +11199,14 @@ (define_insn_and_split
> "avx512vl_<code><mode>v8qi2_mask_store_2"
> (define_mode_iterator PMOV_SRC_MODE_4 [V4DI V2DI V4SI])
> (define_mode_attr pmov_dst_4
> [(V4DI "V4HI") (V2DI "V2HI") (V4SI "V4HI")])
> +(define_mode_attr pmov_dst_4_lower
> + [(V4DI "v4hi") (V2DI "v2hi") (V4SI "v4hi")])
> (define_mode_attr pmov_dst_zeroed_4
> [(V4DI "V4HI") (V2DI "V6HI") (V4SI "V4HI")])
> (define_mode_attr pmov_suff_4
> [(V4DI "qw") (V2DI "qw") (V4SI "dw")])
>
> -(define_expand "trunc<mode><pmov_dst_4>2"
> +(define_expand "trunc<mode><pmov_dst_4_lower>2"
> [(set (match_operand:<pmov_dst_4> 0 "register_operand")
> (truncate:<pmov_dst_4>
> (match_operand:PMOV_SRC_MODE_4 1 "register_operand")))]
> --
> 2.18.1
>
