xref: /external/chromium_org/v8/src/hydrogen-dce.h

// Copyright 2013 the V8 project authors. All rights reserved.
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#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:
  bool MarkLive(HValue* ref, HValue* instr);
  void MarkLiveInstructions();
  void RemoveDeadInstructions();
};


} }  // namespace v8::internal

#endif  // V8_HYDROGEN_DCE_H_