virtual_aggregate_data_flow_analysis.cpp

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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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 *   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, see <http://www.gnu.org/licenses/>.
 *
 */
#include "virtual_aggregate_data_flow_analysis.hpp"

#include "Parameter.hpp"

#include "function_behavior.hpp"
#include "op_graph.hpp"
#include "operations_graph_constructor.hpp"

#include "behavioral_helper.hpp"
#include "hash_helper.hpp"
#include "string_manipulation.hpp" // for GET_CLASS

VirtualAggregateDataFlowAnalysis::VirtualAggregateDataFlowAnalysis(const application_managerRef _AppM,
                                                                   const DesignFlowManagerConstRef _design_flow_manager,
                                                                   const unsigned int _function_index,
                                                                   const ParameterConstRef _parameters)
    : DataDependenceComputation(_AppM, _function_index, VIRTUAL_AGGREGATE_DATA_FLOW_ANALYSIS, _design_flow_manager,
                                _parameters)
{
   debug_level = parameters->get_class_debug_level(GET_CLASS(*this));
}

VirtualAggregateDataFlowAnalysis::~VirtualAggregateDataFlowAnalysis() = default;

const CustomUnorderedSet<std::pair<FrontendFlowStepType, FrontendFlowStep::FunctionRelationship>>
VirtualAggregateDataFlowAnalysis::ComputeFrontendRelationships(
    const DesignFlowStep::RelationshipType relationship_type) const
{
   CustomUnorderedSet<std::pair<FrontendFlowStepType, FunctionRelationship>> relationships;
   switch(relationship_type)
   {
      case(DEPENDENCE_RELATIONSHIP):
      {
         relationships.insert(std::make_pair(BUILD_VIRTUAL_PHI, SAME_FUNCTION));
         relationships.insert(std::make_pair(OP_REACHABILITY_COMPUTATION, SAME_FUNCTION));
         relationships.insert(std::make_pair(VAR_ANALYSIS, SAME_FUNCTION));
         break;
      }
      case(PRECEDENCE_RELATIONSHIP):
      case(INVALIDATION_RELATIONSHIP):
      {
         break;
      }
      default:
      {
         THROW_UNREACHABLE("");
      }
   }
   return relationships;
}

void VirtualAggregateDataFlowAnalysis::Initialize()
{
   if(bb_version != 0 && bb_version != function_behavior->GetBBVersion())
   {
      const auto fsaodg = function_behavior->CGetOpGraph(FunctionBehavior::FSAODG);
      if(boost::num_vertices(*fsaodg) != 0)
      {
         EdgeIterator edge, edge_end;
         for(boost::tie(edge, edge_end) = boost::edges(*fsaodg); edge != edge_end; edge++)
         {
            function_behavior->ogc->RemoveSelector(*edge, DFG_AGG_SELECTOR | FB_DFG_AGG_SELECTOR | ADG_AGG_SELECTOR |
                                                              FB_ADG_AGG_SELECTOR | ODG_AGG_SELECTOR |
                                                              FB_ODG_AGG_SELECTOR);
         }
      }
   }
}