[PATCH] D72361: [DAGCombiner] reduce extract subvector of concat

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 236826.
spatel added a comment.

Patch updated:
Rebased after pre-committing the cleanup with rG780ba1f22b53 <https://reviews.llvm.org/rG780ba1f22b53116918cf12decccaed7ba2292bd5>.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D72361/new/

https://reviews.llvm.org/D72361

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/X86/avg.ll
  llvm/test/CodeGen/X86/pr34657.ll
  llvm/test/CodeGen/X86/x86-interleaved-access.ll

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