Fix bug I introduced yesterday :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5669 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp
index 3759f44..5a68dda 100644
--- a/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/lib/Transforms/Utils/LoopSimplify.cpp
@@ -307,7 +307,8 @@
// Replace any instances of Exit with NewBB in this and any nested loops...
for (df_iterator<Loop*> I = df_begin(L), E = df_end(L); I != E; ++I)
- I->changeExitBlock(Exit, NewBB); // Update exit block information
+ if (I->hasExitBlock(Exit))
+ I->changeExitBlock(Exit, NewBB); // Update exit block information
// Update dominator information... The blocks that dominate NewBB are the
// intersection of the dominators of predecessors, plus the block itself.