[PATCH] D147404: [DAGCombiner] Fold avg(x, x) --> x

[Jun Zhang via Phabricator via llvm-commits]

junaire updated this revision to Diff 510398.
junaire added a comment.

Perform combine after the types are legalized.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D147404/new/

https://reviews.llvm.org/D147404

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/AArch64/arm64-vhadd.ll
  llvm/test/CodeGen/X86/avg.ll
  llvm/test/CodeGen/X86/combine-pavg.ll

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