simple_code_motion.hpp

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/*
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 *
 *             ***********************************************
 *                              PandA Project
 *                     URL: http://panda.dei.polimi.it
 *                       Politecnico di Milano - DEIB
 *                        System Architectures Group
 *             ***********************************************
 *              Copyright (C) 2004-2024 Politecnico di Milano
 *
 *   This file is part of the PandA framework.
 *
 *   The PandA framework 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 3 of the License, or
 *   (at your option) any later version.
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 *   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, see <http://www.gnu.org/licenses/>.
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 */
#ifndef SIMPLE_CODE_MOTION_HPP
#define SIMPLE_CODE_MOTION_HPP

#include "function_frontend_flow_step.hpp"

#include "custom_map.hpp"
#include "refcount.hpp"

REF_FORWARD_DECL(Schedule);
REF_FORWARD_DECL(tree_manager);
REF_FORWARD_DECL(tree_node);
REF_FORWARD_DECL(bloc);
class ssa_name;
class gimple_assign;

class simple_code_motion : public FunctionFrontendFlowStep
{
 private:
   bool restart_ifmwi_opt;

   ScheduleRef schedule;

   static bool tree_dumped;

   bool conservative;

   const CustomUnorderedSet<std::pair<FrontendFlowStepType, FunctionRelationship>>
   ComputeFrontendRelationships(const DesignFlowStep::RelationshipType relationship_type) const override;

   FunctionFrontendFlowStep_Movable CheckMovable(const unsigned int dest_bb_index, tree_nodeRef tn, bool& zero_delay,
                                                 const tree_managerRef TM);

   void loop_pipelined(tree_nodeRef curr_stmt, const tree_managerRef TM, unsigned int curr_bb,
                       unsigned int curr_loop_id, std::list<tree_nodeRef>& to_be_removed,
                       std::list<tree_nodeRef>& to_be_added_back, std::list<tree_nodeRef>& to_be_added_front,
                       std::map<unsigned int, blocRef>& list_of_bloc,
                       std::map<std::pair<unsigned int, blocRef>, std::pair<unsigned int, blocRef>>& dom_diff,
                       unsigned int curr_bb_dom);

 public:
   simple_code_motion(const ParameterConstRef parameters, const application_managerRef AppM, unsigned int function_id,
                      const DesignFlowManagerConstRef design_flow_manager);

   ~simple_code_motion() override;

   DesignFlowStep_Status InternalExec() override;

   void Initialize() override;

   bool IsScheduleBased() const;
};
#endif