[PATCH] D53303: [Pipeliner] copyToPhi DAG Mutation to improve scheduling.

[Sumanth Gundapaneni via Phabricator via llvm-commits]

sgundapa updated this revision to Diff 169765.

https://reviews.llvm.org/D53303

Files:
  lib/CodeGen/MachinePipeliner.cpp
  test/CodeGen/Hexagon/swp-copytophi-dag.ll

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