commit 2f170997b5349bf7e9ef4cb5cb38af5f7df0c54b
author Devang Patel <dpatel@apple.com> Mon Jun 02 22:52:56 2008 +0000
committer Devang Patel <dpatel@apple.com> Mon Jun 02 22:52:56 2008 +0000
tree c2f74561c93cfaf58e6f68d1f8a34d9024445dd0
parent 33b625bee429986b2b3bd11108816d256df39334

Update dom tree. Fix PR 2372.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51887 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnswitch.cpp

diff --git a/lib/Transforms/Scalar/LoopUnswitch.cpp b/lib/Transforms/Scalar/LoopUnswitch.cpp
index 767ea1d..e0fb4c6 100644
--- a/lib/Transforms/Scalar/LoopUnswitch.cpp
+++ b/lib/Transforms/Scalar/LoopUnswitch.cpp
@@ -569,7 +569,6 @@
 
   // Insert the new branch.
   BranchInst::Create(TrueDest, FalseDest, BranchVal, InsertPt);
-
 }
 
 
@@ -607,6 +606,10 @@
   // insert the new conditional branch.
   EmitPreheaderBranchOnCondition(Cond, Val, NewExit, NewPH, 
                                  OrigPH->getTerminator());
+  if (DT) {
+    DT->changeImmediateDominator(NewExit, OrigPH);
+    DT->changeImmediateDominator(NewPH, OrigPH);
+  }
   LPM->deleteSimpleAnalysisValue(OrigPH->getTerminator(), L);
   OrigPH->getTerminator()->eraseFromParent();