[PATCH] D125041: [GlobalISel] Combine G_SHL, G_ASHR, G_SHL of undef shifts undef.

Amara Emerson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu May 5 13:58:09 PDT 2022


aemerson created this revision.
aemerson added reviewers: paquette, arsenm, foad, jroelofs.
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This matches when SelectionDAG does.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125041

Files:
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/test/CodeGen/AArch64/GlobalISel/prelegalizercombiner-undef.mir

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