[PATCH] D54174: [GlobalISel] LegalizationArtifactCombiner: Combine aext([asz]ext x) -> [asz]ext x

[Amara Emerson via Phabricator via llvm-commits]

aemerson added a comment.

So these extends are created by the legalizer, correct? If so, it seems ok to me as that's what these artifact combines were intended for.


https://reviews.llvm.org/D54174