PCMarker support for DAG and Alpha

llvm-svn: 20965
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index d4804d9..edc5b8c 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1099,6 +1099,7 @@
 const char *SDNode::getOperationName() const {
   switch (getOpcode()) {
   default: return "<<Unknown>>";
+  case ISD::PCMARKER:      return "PCMarker";
   case ISD::EntryToken:    return "EntryToken";
   case ISD::TokenFactor:   return "TokenFactor";
   case ISD::Constant:      return "Constant";