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* Revert "Relax constraints for reduction vectorization"Sanjoy Das2019-03-111-112/+0
| | | | | | This reverts commit r355868. Breaks hexagon. llvm-svn: 355873
* Relax constraints for reduction vectorizationSanjoy Das2019-03-111-0/+112
Summary: Gating vectorizing reductions on *all* fastmath flags seems unnecessary; `reassoc` should be sufficient. Reviewers: tvvikram, mkuper, kristof.beyls, sdesmalen, Ayal Reviewed By: sdesmalen Subscribers: dcaballe, huntergr, jmolloy, mcrosier, jlebar, bixia, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57728 llvm-svn: 355868
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