X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FSelectionDAGISel.h;h=c42f6558007bb0062a14996dc820654195434253;hb=412cd2f81374865dfa708bef6d5b896ca10dece0;hp=ee3f2319c0b3866f807c2fe984459771e11e18b5;hpb=50bee42b54cd9aec5f49566307df2b0cf23afcf6;p=oota-llvm.git

diff --git a/include/llvm/CodeGen/SelectionDAGISel.h b/include/llvm/CodeGen/SelectionDAGISel.h
index ee3f2319c0b..c42f6558007 100644
--- a/include/llvm/CodeGen/SelectionDAGISel.h
+++ b/include/llvm/CodeGen/SelectionDAGISel.h
@@ -172,53 +172,22 @@ protected:
   ///
   unsigned DAGSize;
 
-  /// ISelPosition - Node iterator marking the current position of
-  /// instruction selection as it procedes through the topologically-sorted
-  /// node list.
-  SelectionDAG::allnodes_iterator ISelPosition;
-
-
-  /// ISelUpdater - helper class to handle updates of the
-  /// instruction selection graph.
-  class ISelUpdater : public SelectionDAG::DAGUpdateListener {
-    virtual void anchor();
-    SelectionDAG::allnodes_iterator &ISelPosition;
-  public:
-    explicit ISelUpdater(SelectionDAG::allnodes_iterator &isp)
-      : ISelPosition(isp) {}
-
-    /// NodeDeleted - Handle nodes deleted from the graph. If the
-    /// node being deleted is the current ISelPosition node, update
-    /// ISelPosition.
-    ///
-    virtual void NodeDeleted(SDNode *N, SDNode *E) {
-      if (ISelPosition == SelectionDAG::allnodes_iterator(N))
-        ++ISelPosition;
-    }
-
-    /// NodeUpdated - Ignore updates for now.
-    virtual void NodeUpdated(SDNode *N) {}
-  };
-
   /// ReplaceUses - replace all uses of the old node F with the use
   /// of the new node T.
   void ReplaceUses(SDValue F, SDValue T) {
-    ISelUpdater ISU(ISelPosition);
-    CurDAG->ReplaceAllUsesOfValueWith(F, T, &ISU);
+    CurDAG->ReplaceAllUsesOfValueWith(F, T);
   }
 
   /// ReplaceUses - replace all uses of the old nodes F with the use
   /// of the new nodes T.
   void ReplaceUses(const SDValue *F, const SDValue *T, unsigned Num) {
-    ISelUpdater ISU(ISelPosition);
-    CurDAG->ReplaceAllUsesOfValuesWith(F, T, Num, &ISU);
+    CurDAG->ReplaceAllUsesOfValuesWith(F, T, Num);
   }
 
   /// ReplaceUses - replace all uses of the old node F with the use
   /// of the new node T.
   void ReplaceUses(SDNode *F, SDNode *T) {
-    ISelUpdater ISU(ISelPosition);
-    CurDAG->ReplaceAllUsesWith(F, T, &ISU);
+    CurDAG->ReplaceAllUsesWith(F, T);
   }