[llvm] r177600 - Make variable name more explicit and eliminate redundant lookup in SDNodeOrdering

[Justin Holewinski]

Author: jholewinski
Date: Wed Mar 20 18:10:59 2013
New Revision: 177600

URL: http://llvm.org/viewvc/llvm-project?rev=177600&view=rev
Log:
Make variable name more explicit and eliminate redundant lookup in SDNodeOrdering

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SDNodeOrdering.h

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SDNodeOrdering.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SDNodeOrdering.h?rev=177600&r1=177599&r2=177600&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SDNodeOrdering.h (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SDNodeOrdering.h Wed Mar 20 18:10:59 2013
@@ -33,10 +33,10 @@ class SDNodeOrdering {
 public:
   SDNodeOrdering() {}
 
-  void add(const SDNode *Node, unsigned O) {
-    unsigned OldOrder = getOrder(Node);
-    if (OldOrder == 0 || (OldOrder > 0 && O < OldOrder))
-      OrderMap[Node] = O;
+  void add(const SDNode *Node, unsigned NewOrder) {
+    unsigned &OldOrder = OrderMap[Node];
+    if (OldOrder == 0 || (OldOrder > 0 && NewOrder < OldOrder))
+      OldOrder = NewOrder;
   }
   void remove(const SDNode *Node) {
     DenseMap<const SDNode*, unsigned>::iterator Itr = OrderMap.find(Node);