On Fri, May 13, 2022 at 10:54 AM Liu, Hongtao wrote:
>
>
>
> > -Original Message-
> > From: Uros Bizjak
> > Sent: Friday, May 13, 2022 4:15 PM
> > To: Liu, Hongtao
> > Cc: gcc-patches@gcc.gnu.org
> > Subject: Re: [PATCH] Optimize vpermtiw/b
> -Original Message-
> From: Uros Bizjak
> Sent: Friday, May 13, 2022 4:15 PM
> To: Liu, Hongtao
> Cc: gcc-patches@gcc.gnu.org
> Subject: Re: [PATCH] Optimize vpermtiw/b to vpunpcklqdq for certain cases.
>
> On Fri, May 13, 2022 at 9:16 AM liuhongt
On Fri, May 13, 2022 at 9:16 AM liuhongt wrote:
>
> Assembly Optimization like:
> - vmovq %xmm0, %xmm2
> - vmovdqa .LC0(%rip), %xmm0
> vmovq %xmm1, %xmm1
> - vpermi2w%xmm1, %xmm2, %xmm0
> + vmovq %xmm0, %xmm0
> + vpunpcklqdq %xmm1, %xmm0, %xm
