[PATCH] D51471: [SimplifyCFG] Reduce memory churn during common case for branch commoning [NFC]

[Philip Reames via Phabricator via llvm-commits]

reames updated this revision to Diff 163237.
reames added a comment.

(slightly modified patch to reduce overhead for multiple predecessor case too)


https://reviews.llvm.org/D51471

Files:
  lib/Transforms/Utils/SimplifyCFG.cpp

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