Reuse the gap move resolver.

src/lithium.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 19 matching lines @@
 
 #include "lithium-allocator.h"
 
 namespace v8 {
 namespace internal {
 
 class LGapNode;
 
 class LGapResolver BASE_EMBEDDED {
  public:
-  LGapResolver(const ZoneList<LMoveOperands>* moves, LOperand* marker_operand);
-  const ZoneList<LMoveOperands>* ResolveInReverseOrder();
+  LGapResolver();
+  const ZoneList<LMoveOperands>* Resolve(const ZoneList<LMoveOperands>* moves,
+                                         LOperand* marker_operand);
 
  private:
   LGapNode* LookupNode(LOperand* operand);
   bool CanReach(LGapNode* a, LGapNode* b, int visited_id);
   bool CanReach(LGapNode* a, LGapNode* b);
   void RegisterMove(LMoveOperands move);
   void AddResultMove(LOperand* from, LOperand* to);
   void AddResultMove(LGapNode* from, LGapNode* to);
-  void ResolveCycle(LGapNode* start);
+  void ResolveCycle(LGapNode* start, LOperand* marker_operand);
 
   ZoneList<LGapNode*> nodes_;
   ZoneList<LGapNode*> identified_cycles_;
   ZoneList<LMoveOperands> result_;
-  LOperand* marker_operand_;
   int next_visited_id_;
-  int bailout_after_ast_id_;
 };
 
 
 class LParallelMove : public ZoneObject {
  public:
   LParallelMove() : move_operands_(4) { }
 
   void AddMove(LOperand* from, LOperand* to) {
     move_operands_.Add(LMoveOperands(from, to));
   }
 
   bool IsRedundant() const;
 
   const ZoneList<LMoveOperands>* move_operands() const {
     return &move_operands_;
   }
 
   void PrintDataTo(StringStream* stream) const;
 
  private:
   ZoneList<LMoveOperands> move_operands_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_LITHIUM_H_