[PATCH] D44257: [MemorySSAUpdater] Mark non-trivial Phi for not to optimize

[Z. Zheng via Phabricator via llvm-commits]

zzheng created this revision.
zzheng added reviewers: dberlin, efriedma.
Herald added a subscriber: Prazek.

Fix PR36484, as suggested:

<quote>
during moves, mark the direct users of the erased things that were phis as "not to be optimized"
<quote>


Repository:
  rL LLVM

https://reviews.llvm.org/D44257

Files:
  include/llvm/Analysis/MemorySSAUpdater.h
  lib/Analysis/MemorySSA.cpp
  lib/Analysis/MemorySSAUpdater.cpp
  test/Transforms/GVNHoist/non-trivial-phi.ll

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