diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 71964b3..d244555 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2472,7 +2472,7 @@
     return true;
   case ISD::ADD:
   case ISD::SUB:
-  case ISD::AND: 
+  case ISD::AND:
   case ISD::XOR:
   case ISD::OR: {
     APInt UndefLHS, UndefRHS;
@@ -2483,7 +2483,7 @@
       UndefElts = UndefLHS | UndefRHS;
       return true;
     }
-    break;
+    return false;
   }
   case ISD::ABS:
   case ISD::TRUNCATE: