Undo previous check-in.

llvm-svn: 40698

1 files changed, 1 insertions, 9 deletions

diff --git a/llvm/lib/VMCore/Dominators.cpp b/llvm/lib/VMCore/Dominators.cpp
index 91b422c7044..9b5ee1bb40c 100644
--- a/llvm/lib/VMCore/Dominators.cpp
+++ b/llvm/lib/VMCore/Dominators.cpp
@@ -627,15 +627,6 @@ void DominanceFrontier::splitBlock(BasicBlock *NewBB) {
   if (!DT.dominates(NewBB, NewBBSucc))
     NewBBDominatesNewBBSucc = false;
 
-  // NewBBSucc inherites original NewBB frontier.
-  DominanceFrontier::iterator NewBBI = find(NewBB);
-  if (NewBBI != end()) {
-    DominanceFrontier::DomSetType NewBBSet = NewBBI->second;
-    DominanceFrontier::DomSetType NewBBSuccSet;
-    NewBBSuccSet.insert(NewBBSet.begin(), NewBBSet.end());
-    addBasicBlock(NewBBSucc, NewBBSuccSet);
-  }
-
   // If NewBB dominates NewBBSucc, then DF(NewBB) is now going to be the
   // DF(PredBlocks[0]) without the stuff that the new block does not dominate
   // a predecessor of.
@@ -657,6 +648,7 @@ void DominanceFrontier::splitBlock(BasicBlock *NewBB) {
           ++SetI;
       }
 
+      DominanceFrontier::iterator NewBBI = find(NewBB);
       if (NewBBI != end()) {
         DominanceFrontier::DomSetType NewBBSet = NewBBI->second;
         NewBBSet.insert(Set.begin(), Set.end());