Hans Wennborg e2470b95da Revert r319531 "[SLPVectorizer] Failure to beneficially vectorize 'copyable' elements in integer binary ops." ... It causes builds to fail with "Instruction does not dominate all uses" (PR35497). > Patch tries to improve vectorization of the following code: > > void add1(int * __restrict dst, const int * __restrict src) { > *dst++ = *src++; > *dst++ = *src++ + 1; > *dst++ = *src++ + 2; > *dst++ = *src++ + 3; > } > Allows to vectorize even if the very first operation is not a binary add, but just a load. > > Fixed issues related to previous commit. > > Reviewers: spatel, mzolotukhin, mkuper, hfinkel, RKSimon, filcab, ABataev > > Reviewed By: ABataev, RKSimon > > Subscribers: llvm-commits, RKSimon > > Differential Revision: https://reviews.llvm.org/D28907 llvm-svn: 319550		2017-12-01 16:17:24 +00:00
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SLP-cmp-cost-query.ll	…
lit.local.cfg	NFC, Allow SystemZ SLP tests only when SystemZ is supported.	2017-11-13 18:35:43 +00:00