[MPlayer-dev-eng] [PATCH] (vers. 3) Support GCC 3.1 flags for Pentium MMX,2,3,4, K6s, Athlons using model/stepping (was Re: [PATCH] Add support for -m{arch,cpu}=pentium{3,4} in GCC 3.1)

D Richard Felker III dalias at aerifal.cx
Tue Jun 11 05:04:46 CEST 2002


On Tue, Jun 11, 2002 at 04:47:57AM +0200, Felix Buenemann wrote:
> On Tuesday 11 June 2002 04:02, Luca Barbieri wrote:
> > > You use much to many fallbacks and some of them are nonsense, so please
> > > add the new ones (which are all avaliable in the same gcc release, so no
> > > sense to fallback from athlon-xp to athlon-4) and fall back to the now
> > > used ones, if not available.
> >
> > Which are nonsense? (apart from the redundant ones)
> > If you are referring to k6->pentium2, it seems more correct than falling
> > back to k5 (which doesn't exist) and then to pentium (that unlike the k6
> > is 586 and has no MMX).
> this is wrong, because pentium optimization is faster for K6 and I'm not even 
> sure i686 binaries will run on K6.

They most definitely will NOT.

Rich




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