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