[PATCH] D136433: [GlobalISel][AArch64] Fix miscompile caused by wrong G_ZEXT selection in GISel

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Maybe GlobalISel should stop using isDef32, like we did for SelectionDAG?  I mean, this fix isn't really wrong, but I think we have the same general issue as SelectionDAG; it's hard to tell how a generic operation is going to be lowered before it's actually lowered.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136433/new/

https://reviews.llvm.org/D136433