> Here is the v3 patch. It no longer uses "rep mov/stos". Lili, can you
> measure
> its performance impact on Intel and AMD cpus?
>
> The updated generic has
>
> Update memcpy and memset inline strategies for -mtune=generic:
>
> 1. Don't align memory.
This looks OK to me (recent microarchs s
On Tue, Jun 17, 2025 at 8:54 PM Cui, Lili wrote:
>
>
>
> > -Original Message-
> > From: H.J. Lu
> > Sent: Monday, June 16, 2025 10:08 PM
> > To: Jan Hubicka
> > Cc: Uros Bizjak ; Cui, Lili ; gcc-
> > patc...@gcc.gnu.org; Liu, Hongtao ;
> > mjgu...@gmail.com
> > Subject: [PATCH v3] x86: U
On Tue, Jun 24, 2025 at 5:22 AM Hongtao Liu wrote:
> > > > Ideall we should catch repeated constants more generally since
> > > > this appears elsewhere too.
> > > > I am not quite sure where to fit it best. We already have a
> > > > machine specific task that loads 0 into
On Tue, Jun 24, 2025 at 1:18 PM Jan Hubicka wrote:
>
> > Here is the v3 patch. It no longer uses "rep mov/stos". Lili, can you
> > measure
> > its performance impact on Intel and AMD cpus?
> >
> > The updated generic has
> >
> > Update memcpy and memset inline strategies for -mtune=generic:
>
> -Original Message-
> From: H.J. Lu
> Sent: Monday, June 16, 2025 10:08 PM
> To: Jan Hubicka
> Cc: Uros Bizjak ; Cui, Lili ; gcc-
> patc...@gcc.gnu.org; Liu, Hongtao ;
> mjgu...@gmail.com
> Subject: [PATCH v3] x86: Update memcpy/memset inline strategies for -
> mtune=generic
>
> On Mo
