fix a bad typeo

llvm-svn: 21917
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 6fa0d92..79d41fc 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1690,8 +1690,8 @@
   case ISD::BRCONDTWOWAY:  return "brcondtwoway";
   case ISD::RET:     return "ret";
   case ISD::CALL:    return "call";
-  case ISD::CALLSEQ_START:  return "callseq_end";
-  case ISD::CALLSEQ_END:    return "callseq_start";
+  case ISD::CALLSEQ_START:  return "callseq_start";
+  case ISD::CALLSEQ_END:    return "callseq_end";
 
     // Other operators
   case ISD::LOAD:    return "load";