[sldev] SSE/2/3 optimisations

[Dirk Moerenhout]

Well, brilliant call indeed :) Only downside is that I do not own a
Mac. Somebody willing to send me one? ;-)

Most important downside to this is the fact that few people have one
and hence few will benefit.

I still hope we'll get at one point CPU statistics that tell us what
is the best path forward. I wouldn't necessarily drop support for
older CPU's but I wouldn't support them in the default distribution.
Old pre-SSE Athlon's for example could get their own binary (with some
3DNow code to have a few speed ups).

Dirk aka Blakar Ogre

On 6/21/07, Laurent Laborde <kerdezixe at gmail.com> wrote:
> Hi,
>
> for all the asm and specific CPU instruction fanatic, i had an idea...
> that sound really stupid, maybe you had this idea. (i wonder how i
> didn't tought about it before).
>
> We have a plateform that we know, for sure, at 100%, the cpu support
> SSE2 and SSE3.
> ALL the mac intel (macbook, iMac, ...) run a Core Duo or a Core 2 Duo.
> and both CPU support MMX, SSE, SSE2, SSE3.
>
> The mac'tel release can have very plateform specific optimisation,
> since we all run one of those CPU. The Mac Pro run a 64-bits Xeon, not
> a core duo, but  the 64 bits Xeon probably also support SSE3 :)
>
> We don't even need to add some check (and cpu overhead) about the
> support of thoses instructions, there is simply no Mac'tel that
> doesn't support SSE3, as far as i know.
>
> Have fun !
>
> --
> kerunix Flan
> _______________________________________________
> Click here to unsubscribe or manage your list subscription:
> /index.html
>