[PATCH] D60413: SExt -> Zext when no sign bits is used

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

InstCombine knows how to do this, but only when there is a single use of the sext. Multiple uses is much more difficult to do. This would probably fit best in AggressiveInstCombine.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D60413/new/

https://reviews.llvm.org/D60413