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Re: 12" G4 iBook

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. ;-)


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