[PATCH] D95122: [Libcalls, Attrs] Annotate libcalls with noundef
Dávid Bolvanský via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jan 21 08:32:21 PST 2021
xbolva00 added a comment.
Or just revert D87994 <https://reviews.llvm.org/D87994> if it blocks more optimizations than it allows..
We could patch clang, but llvm provides valuetracking’s “isKnownNonZero” which is useful and makes this more powerful.
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https://reviews.llvm.org/D95122/new/
https://reviews.llvm.org/D95122
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