[PATCH] D62607: LoopDistribute/LAA: Respect convergent
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed May 29 09:08:23 PDT 2019
arsenm created this revision.
arsenm added reviewers: anemet, silviu.baranga, fhahn, hfinkel, kbarton, jdoerfert, Meinersbur, anna.
Herald added a subscriber: wdng.
This case is slightly tricky, because loop distribution should be
allowed in some cases, and not others. As long as runtime dependency
checks don't need to be introduced, this should be OK. This is further
complicated by the fact that LoopDistribute partially ignores if LAA
says that vectorization is safe, and then does its own runtime pointer
Note this pass still does not handle noduplicate correctly, as this
should always be forbidden with it. I'm not going to bother trying to
fix it, as it would require more effort and I think noduplicate should
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