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775ebccf6b
Expand arithmetic reduction to include mul/and/or/xor instructions. This patch just fixes the SLPVectorizer - the effective reduction costs for AVX1+ are still poor (see rL344846) and will need to be improved before SLP sees this as a valid transform - but we can already see the effect on SSE2 tests. This partially helps PR37731, but doesn't fix it all as it still falls over on the extraction/reduction order for some reason. Differential Revision: https://reviews.llvm.org/D53473 llvm-svn: 345037 |
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