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Alexey Bataev
8d23745f59
Summary: The SLP vectorizer should propagate IR-level optimization hints/flags (nsw, nuw, exact, fast-math) when converting scalar horizontal reductions instructions into vectors, just like for other vectorized instructions. It doe not include IR propagation for extra arguments, we need to handle original scalar operations for extra args to propagate correct flags. Reviewers: mkuper, mzolotukhin, hfinkel Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D30418 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296614 91177308-0d34-0410-b5e6-96231b3b80d8
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