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#ifndef V8_HYDROGEN_MINUS_ZERO_H_
#define V8_HYDROGEN_MINUS_ZERO_H_

#include "hydrogen.h"

namespace v8 {
namespace internal {


class HComputeMinusZeroChecksPhase : public HPhase {
 public:
  explicit HComputeMinusZeroChecksPhase(HGraph* graph)
      : HPhase("H_Compute minus zero checks", graph),
        visited_(graph->GetMaximumValueID(), zone()) { }

  void Run();

 private:
  void PropagateMinusZeroChecks(HValue* value);

  BitVector visited_;

  DISALLOW_COPY_AND_ASSIGN(HComputeMinusZeroChecksPhase);
};


} }  // namespace v8::internal

#endif  // V8_HYDROGEN_MINUS_ZERO_H_