[PATCH] D65490: [SimplifyCFG] Mark missed Changed to true.

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea created this revision.
asbirlea added reviewers: zhizhouy, manojgupta.
Herald added subscribers: sanjoy.google, jlebar.
Herald added a project: LLVM.

DominatorTree is invalid after SimplifyCFG because of a missed `Changed = true` when simplifying a branch condition and removing an edge.
Resolves PR42272.


Repository:
  rL LLVM

https://reviews.llvm.org/D65490

Files:
  lib/Transforms/Utils/SimplifyCFG.cpp
  test/Transforms/SimplifyCFG/invalidate-dom.ll

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