Pool allocate SDDbgValue nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99836 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 3aeed19..faefe29 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -3824,22 +3824,19 @@
     // debug info exists.
     ++SDNodeOrder;
     if (isa<ConstantInt>(V) || isa<ConstantFP>(V)) {
-      SDDbgValue* dv = new SDDbgValue(Variable, V, Offset, dl, SDNodeOrder);
-      DAG.AddDbgValue(dv);
+      DAG.AddDbgValue(DAG.getDbgValue(Variable, V, Offset, dl, SDNodeOrder));
     } else {
       SDValue &N = NodeMap[V];
-      if (N.getNode()) {
-        SDDbgValue *dv = new SDDbgValue(Variable, N.getNode(),
-                                        N.getResNo(), Offset, dl, SDNodeOrder);
-        DAG.AddDbgValue(dv, N.getNode());
-      } else {
+      if (N.getNode())
+        DAG.AddDbgValue(DAG.getDbgValue(Variable, N.getNode(),
+                                        N.getResNo(), Offset, dl, SDNodeOrder),
+                        N.getNode());
+      else
         // We may expand this to cover more cases.  One case where we have no
         // data available is an unreferenced parameter; we need this fallback.
-        SDDbgValue* dv = new SDDbgValue(Variable, 
+        DAG.AddDbgValue(DAG.getDbgValue(Variable, 
                                         UndefValue::get(V->getType()),
-                                        Offset, dl, SDNodeOrder);
-        DAG.AddDbgValue(dv);
-      }
+                                        Offset, dl, SDNodeOrder));
     }
 
     // Build a debug info table entry.