1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
index 40d33d15afc..e71e84feac4 100644
--- a/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
+++ b/llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
@@ -179,6 +179,10 @@ bool llvm::MergeBlockIntoPredecessor(BasicBlock *BB, Pass *P) {
       
       if (LoopInfo *LI = P->getAnalysisIfAvailable<LoopInfo>())
         LI->removeBlock(BB);
+      
+      if (MemoryDependenceAnalysis *MD =
+            P->getAnalysisIfAvailable<MemoryDependenceAnalysis>())
+        MD->invalidateCachedPredecessors();
     }
   }