Add unique id to debug location for debug label use (work in progress.)

llvm-svn: 25096
diff --git a/llvm/lib/Target/TargetSelectionDAG.td b/llvm/lib/Target/TargetSelectionDAG.td
index db7c2bd..13cd40e 100644
--- a/llvm/lib/Target/TargetSelectionDAG.td
+++ b/llvm/lib/Target/TargetSelectionDAG.td
@@ -440,8 +440,8 @@
 //===----------------------------------------------------------------------===//
 // Dwarf support.
 //
-def SDT_dwarf_loc : SDTypeProfile<0, 3,
-                                    [SDTCisInt<0>, SDTCisInt<1>, SDTCisInt<2>]>;
+def SDT_dwarf_loc : SDTypeProfile<0, 4,
+                      [SDTCisInt<0>, SDTCisInt<1>, SDTCisInt<2>, SDTCisInt<3>]>;
 def dwarf_loc  : SDNode<"ISD::DEBUG_LOC", SDT_dwarf_loc,[SDNPHasChain]>;