[PATCH] D122485: [SimplifyCFG] Try to fold switch with single result value and power-of-2 cases to mask+select

[chenglin.bi via Phabricator via llvm-commits]

bcl5980 updated this revision to Diff 422724.
bcl5980 retitled this revision from "[SimplifyCFG] Fold mutil cases to And mask" to "[SimplifyCFG] Try to fold switch with single result value and power-of-2 cases to mask+select".
bcl5980 added a comment.

rebase and update comments


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D122485/new/

https://reviews.llvm.org/D122485

Files:
  llvm/lib/Transforms/Utils/SimplifyCFG.cpp
  llvm/test/Transforms/SimplifyCFG/switch-to-select-two-case.ll

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