Vector ops lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26436 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 15baeab..5607e71 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -663,7 +663,7 @@
   if (N1.getOpcode() == ISD::SUB && N0 == N1.getOperand(1))
     return N1.getOperand(0);
   // 
-  if (SimplifyDemandedBits(SDOperand(N, 0)))
+  if (!MVT::isVector(VT) && SimplifyDemandedBits(SDOperand(N, 0)))
     return SDOperand();
   return SDOperand();
 }