[llvm] r187775 - Put an llvm_unreachable at the end of getSplatIndex as its loop should never find all undef elements.

[Craig Topper]

Author: ctopper
Date: Tue Aug  6 00:41:22 2013
New Revision: 187775

URL: http://llvm.org/viewvc/llvm-project?rev=187775&view=rev
Log:
Put an llvm_unreachable at the end of getSplatIndex as its loop should never find all undef elements.

Modified:
    llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h

Modified: llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h?rev=187775&r1=187774&r2=187775&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/SelectionDAGNodes.h Tue Aug  6 00:41:22 2013
@@ -1205,7 +1205,7 @@ public:
       if (Mask[i] >= 0)
         return Mask[i];
     }
-    return -1;
+    llvm_unreachable("Splat with all undef indices?");
   }
   static bool isSplatMask(const int *Mask, EVT VT);