add some trivial support for extractelement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26928 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 8bf499e..fcca7e3 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2671,6 +2671,8 @@
   case ISD::SELECT_CC:   return "select_cc";
   case ISD::INSERT_VECTOR_ELT: return "insert_vector_elt";
   case ISD::VINSERT_VECTOR_ELT: return "vinsert_vector_elt";
+  case ISD::EXTRACT_VECTOR_ELT: return "extract_vector_elt";
+  case ISD::VEXTRACT_VECTOR_ELT: return "vextract_vector_elt";
   case ISD::SCALAR_TO_VECTOR:   return "scalar_to_vector";
   case ISD::VBUILD_VECTOR: return "vbuild_vector";
   case ISD::VECTOR_SHUFFLE: return "vector_shuffle";