[PATCH] D98708: [LoopVectorize] relax FMF constraint for FP induction
David Sherwood via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Mar 17 03:38:23 PDT 2021
david-arm added a comment.
Hi @dmgreen, yes of course you're right. I'd forgotten about the nsz requirement. It's definitely needed at compile time for vectorising FP reduction loops, i.e. `clang -freassociative-math -fno-trapping-math -fno-signed-zeroes`. I guess adding a check for nsz here is consistent with that?
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https://reviews.llvm.org/D98708/new/
https://reviews.llvm.org/D98708
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