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Re: [PATCH, i386]: Add SSE4.2 support - pcmpstr part
On Mon, Jun 04, 2007 at 04:23:04PM +0200, Uros Bizjak wrote:
>
> >You may also consider 'Y' classes as various variants of SSE register
> >classes and then 'Y0' and possibly 'Y1' would fit here.
> >A bit confusing might be 'Y2' (I would imply it means xmm2)
> >but perhaps we can just rename it to something different, like Yt.
> >(for two) I not sure if it is any better to be honest.
>
> I have no problem with choosen name, as long as it is consistent with
> existing schemes. Perhaps we can use "z0" to mark xmm0 and still have
> way to extend it in future (to mark separate xmm registers perhaps)?
> I'd leave Y to switch the whole register sets (I have a feeling that
> Y2 is not the last here ;)
>
> BTW: 10 remaining letters should also be enough for everyone ;)
Not really. Intel will need a couple very soon.
H.J.