Fix "Control reaches the end of non-void function" warnings, 
patch by David Chisnall.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48963 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/PredicateSimplifier.cpp b/lib/Transforms/Scalar/PredicateSimplifier.cpp
index 42ffc0e..f8bd153 100644
--- a/lib/Transforms/Scalar/PredicateSimplifier.cpp
+++ b/lib/Transforms/Scalar/PredicateSimplifier.cpp
@@ -244,6 +244,7 @@
              *Node2 = getNodeForBlock(BB2);
         return Node1 && Node2 && Node1->dominates(Node2);
       }
+      return false; // Not reached
     }
 
   private:
@@ -1413,6 +1414,7 @@
         if (!Node) return false;
         return Top->dominates(Node);
       }
+      return false; // Not reached
     }
 
     // aboveOrBelow - true if the Instruction either dominates or is dominated