ListSchedulingPass.hpp

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/* src/vm/jit/compiler2/ListSchedulingPass.hpp - ListSchedulingPass

   Copyright (C) 2013
   CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO

   This file is part of CACAO.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   This program is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
   02110-1301, USA.

*/

#ifndef _JIT_COMPILER2_LISTSCHEDULINGPASS
#define _JIT_COMPILER2_LISTSCHEDULINGPASS

#include "vm/jit/compiler2/Pass.hpp"
#include "vm/jit/compiler2/Instruction.hpp"
#include "vm/jit/compiler2/InstructionSchedule.hpp"

MM_MAKE_NAME(ListSchedulingPass)

namespace cacao {
namespace jit {
namespace compiler2 {

class GlobalSchedule;
class Method;

/**
 * ListSchedulingPass
 *
 * Constructs an instruction schedule for each basic block based on a
 * classical list scheduling algorithm.
 */
class ListSchedulingPass : public Pass,
                           public memory::ManagerMixin<ListSchedulingPass>,
                           public InstructionSchedule<Instruction> {
private:

    /**
     * The Method to process.
     */
    Method *M;

    /**
     * The current GlobalSchedule of the processed Method.
     */
    GlobalSchedule *GS;

    /**
     * Schedule the instructions within the block that starts at @p begin.
     */
    void schedule(BeginInst *begin);

public:

    ListSchedulingPass() : Pass() {}
    virtual bool run(JITData &JD);
    virtual bool verify() const;
    virtual PassUsage& get_PassUsage(PassUsage &PU) const;
};

} // end namespace compiler2
} // end namespace jit
} // end namespace cacao

#endif /* _JIT_COMPILER2_LISTSCHEDULINGPASS */


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