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// Copyright 2013 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_HYDROGEN_DCE_H_
#define V8_HYDROGEN_DCE_H_
#include "hydrogen.h"
namespace v8 {
namespace internal {
class HDeadCodeEliminationPhase : public HPhase {
public:
explicit HDeadCodeEliminationPhase(HGraph* graph)
: HPhase("H_Dead code elimination", graph) { }
void Run() {
MarkLiveInstructions();
RemoveDeadInstructions();
}
private:
void MarkLive(HValue* instr, ZoneList<HValue*>* worklist);
void PrintLive(HValue* ref, HValue* instr);
void MarkLiveInstructions();
void RemoveDeadInstructions();
};
} } // namespace v8::internal
#endif // V8_HYDROGEN_DCE_H_
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