[PATCH] D79746: [SCEV] Relax abnormal exit check in isAddRecNeverPoison.
Eli Friedman via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri May 15 10:51:37 PDT 2020
efriedma added a comment.
> Would the idea here be allowing to use overflow flags for expressions depending on where an expression is evaluated/used? (for example the latch branch for the trip count computation)
I guess it could vary based on that. The discussion has mostly centered around making the overflow flags vary depending on whether the IR instruction is marked nsw/nuw, but that isn't the only possible input.
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https://reviews.llvm.org/D79746/new/
https://reviews.llvm.org/D79746
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