Re: 12" G4 iBook
On jeu, 2003-11-20 at 10:04, Kristian Peters wrote:
> Guillaume Morin <guillaume@morinfr.org> schrieb:
> > -maltivec allows acces to the Altivec ABI. But gcc cannot perform
> > auto-vectorization on its own (yet). So compiling -maltivec won't change
> > anything if the code does not contain Altivec instructions (in the form
> > of assembly instructions or their C versions). And in that case, it
> > would not even compile without -maltivec :)
>
> Just out of interest. How does Apple compile their software optimized for Altivec
> since they're using gcc too ? I don't think they have much assembly in their code. ;-)
Apple do use its own version of gcc, where lot of changes in both front-end
and back-end have not been integrated into gcc yet.
Hub
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