[PATCH] D83360: [InstSimplify] Remove select ?, undef, X -> X and select ?, X, undef -> X

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

Please also add testcases with select constant expressions, to test constant folding.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D83360/new/

https://reviews.llvm.org/D83360