[PATCH 0/4] x86: fold a number of VEX and EVEX templates

[Cui, Lili]

> -----Original Message-----
> From: Jan Beulich <jbeulich@suse.com>
> Sent: Monday, September 18, 2023 5:38 PM
> To: Cui, Lili <lili.cui@intel.com>
> Cc: Binutils <binutils@sourceware.org>; H.J. Lu <hjl.tools@gmail.com>;
> Hongtao Liu <crazylht@gmail.com>
> Subject: Re: [PATCH 0/4] x86: fold a number of VEX and EVEX templates
> 
> On 18.09.2023 07:47, Cui, Lili wrote:
> >> -----Original Message-----
> >> From: Hongtao Liu <crazylht@gmail.com>
> >> Sent: Monday, September 18, 2023 9:58 AM
> >>
> >> On Fri, Sep 15, 2023 at 4:46 PM Jan Beulich via Binutils
> >> <binutils@sourceware.org> wrote:
> >>>
> >>> The last two patches are explicitly RFC, for having a possibly
> >>> unwanted side effect.
> >> We're about to send out APX patches, @Lili Cui  cloud you take a look
> >> at the series?
> >
> > Since APX only needs to promote the VEX instructions without
> corresponding EVEX, these folding VEX and EVEX template patches has no
> effect on our internal APX patches.
> 
> I don't follow: As soon as you have an insn with both a VEX and an EVEX
> encoding, there can be potential for folding (ideally right when APX is being
> introduced, rather than once again leaving it to me to clean up later).

Oh, I got your point. After your patches checked in,  I will fold VEX and EVEX  after we have promoted-EVEX. 

Thanks,
Lili.

> 
> Jan