On Sat, 2019-08-31 at 00:19 -0700, Georgy Yakovlev wrote: > On 8/30/19 11:11 PM, Michał Górny wrote: > > On Sat, 2019-08-31 at 00:03 -0700, Georgy Yakovlev wrote: > <snip> > > > +altivec - Use the AltiVec instruction set > > > +vsx - Use the Vector Scalar Extension instruction set (POWER7 and later) > > > +vsx3 - Use the Vector Scalar Extension v.3 instruction set (POWER9 and > > > later) > > > > Do all those flags have real use cases in ::gentoo? I'd really prefer > > not having more 'unused flag' warnings ;-). > > > > yeah, I have mentioned possible users above and there are plenty I > haven't identified yet. patches to ebuilds will follow, I promise =) > > for example x264 if built with proper flags gives a noticeable boost, > (at least 2x at encoding), totally worth it. > > ppc will not have a lot of flags like on arm or x86, maybe a couple > more, but that's it for now. >
Just to be clear: we're not talking about -m compiler flags, are we? 'cause those should be handled via CFLAGS. -- Best regards, Michał Górny
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