[PATCH] D52374: [MachineCopyPropagation] Reimplement CopyTracker in terms of register units

[Justin Bogner via Phabricator via llvm-commits]

bogner updated this revision to Diff 166788.
bogner added a comment.

Clarify a bit based on Matthias's comments.


https://reviews.llvm.org/D52374

Files:
  lib/CodeGen/MachineCopyPropagation.cpp

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