PCMarker support for DAG and Alpha


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20965 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 455d91a..80c9428 100644
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -225,6 +225,8 @@
     ADJCALLSTACKDOWN,  // Beginning of a call sequence
     ADJCALLSTACKUP,    // End of a call sequence
 
+    // PCMARKER - This corrosponds to the pcmarker intrinsic.
+    PCMARKER,
 
     // BUILTIN_OP_END - This must be the last enum value in this list.
     BUILTIN_OP_END,