1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp
index a790db3338c..61443e301d6 100644
--- a/llvm/lib/Transforms/Scalar/GVN.cpp
+++ b/llvm/lib/Transforms/Scalar/GVN.cpp
@@ -2457,6 +2457,8 @@ void GVN::addDeadBlock(BasicBlock *BB) {
         PHINode &Phi = cast<PHINode>(*II);
         Phi.setIncomingValue(Phi.getBasicBlockIndex(P),
                              UndefValue::get(Phi.getType()));
+        if (MD)
+          MD->invalidateCachedPointerInfo(&Phi);
       }
     }
   }