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

Ahmed Bougacha via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 27 13:05:41 PDT 2015


ab added a comment.

Unless I'm misunderstanding, I believe this has much less impact than you're thinking; there are three cases:

- x86_64: no change (-mno-mmx is guarded by x86)
- x86, with -mno-mmx: no change (because previously, we'd only set avx/avx512 for x86_64)
- x86, without -mno-mmx: this will use an avx/avx512 ABI string where we'd have used "", letting us use the better alignment (only for OpenMP and vectors, I think).


http://reviews.llvm.org/D12390





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