[PATCH] D50911: Update MemorySSA in LoopSimplifyCFG.

[Chandler Carruth via Phabricator via llvm-commits]

chandlerc added inline comments.


================
Comment at: lib/Transforms/Scalar/LoopSimplifyCFG.cpp:77
                                            LPMUpdater &) {
-  if (!simplifyLoopCFG(L, AR.DT, AR.LI, AR.SE))
+  std::unique_ptr<MemorySSAUpdater> MSSAU;
+  if (EnableMSSALoopDependency && AR.MSSA)
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Same comment as on other patch -- could we use an Optional here to avoid heap allocation?


Repository:
  rL LLVM

https://reviews.llvm.org/D50911