[PATCH] D12390: Also enable the avx/avx512 ABIs for i386, not just x86_64.

John McCall via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 27 11:45:06 PDT 2015


rjmccall added a comment.

This gives no-MMX priority over turning on SSE, which sounds like a major change in behavior to me.  There are definitely clients that specifically never want to use MMX but do care deeply about SSE; my understanding is that modern microarchitectures heavily punish casual use of MMX.


http://reviews.llvm.org/D12390





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