diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Utils/LoopSimplify.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp index 3759f44f64..5a68dda1af 100644 --- a/lib/Transforms/Utils/LoopSimplify.cpp +++ b/lib/Transforms/Utils/LoopSimplify.cpp @@ -307,7 +307,8 @@ void Preheaders::RewriteLoopExitBlock(Loop *L, BasicBlock *Exit) { // 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. |