Ejemplo n.º 1
0
int main(int argc, char* argv[]) {
  try {
    if(argc==1) {
      cout << "Error: wrong command line options."<<endl;
      exit(1);
    }
     // Command line option handling.
    namespace po = boost::program_options;
    po::options_description desc
      ("analyterix V0.2\n"
       "Written by Markus Schordan\n"
       "Supported options");
  
    desc.add_options()
      ("help,h", "produce this help message.")
      ("rose-help", "show help for compiler frontend options.")
      ("version,v", "display the version.")
      ("stats", "display code statistics.")
      ("fi-constanalysis", "perform flow-insensitive constant analysis.")
      ("csv-fi-constanalysis",po::value< string >(), "generate csv-file [arg] with const-analysis data.")
      ("rd-analysis", "perform reaching definitions analysis.")
      ("rose-rd-analysis", "perform rose reaching definitions analysis.")
      ("lv-analysis", "perform live variables analysis.")
      ("ud-analysis", "use-def analysis.")
      ("at-analysis", "address-taken analysis.")
      ("icfg-dot", "generates the ICFG as dot file.")
      ("interval-analysis", "perform interval analysis.")
      ("trace", "show operations as performed by selected solver.")
      ("print-varidmapping", "prints variableIdMapping")
      ("print-varidmapping-array", "prints variableIdMapping with array element varids.")
      ("prefix",po::value< string >(), "set prefix for all generated files.")
      ;
  //    ("int-option",po::value< int >(),"option info")

    po::store(po::command_line_parser(argc, argv).options(desc).allow_unregistered().run(), args);
    po::notify(args);

    if (args.count("help")) {
      cout << "analyterix <filename> [OPTIONS]"<<endl;
      cout << desc << "\n";
      return 0;
    }
    if (args.count("version")) {
      cout << "analyterix version 0.1\n";
      cout << "Written by Markus Schordan 2014\n";
      return 0;
    }
    if (args.count("rose-help")) {
      argv[1] = strdup("--help");
    }
    if (args.count("prefix")) {
      option_prefix=args["prefix"].as<string>().c_str();
    }

    if (args.count("trace")) {
      option_trace=true;
    }
    if(args.count("stats")) {
      option_stats=true;
    }
    if(args.count("rd-analysis")) {
      option_rd_analysis=true;
    }
    if(args.count("lv-analysis")) {
      option_lv_analysis=true;
    }
    if(args.count("interval-analysis")) {
      option_interval_analysis=true;
    }
    if(args.count("ud-analysis")) {
      option_rd_analysis=true; // required
      option_ud_analysis=true;
    }
    if(args.count("rose-rd-analysis")) {
      option_rose_rd_analysis=true;
    }
    if(args.count("fi-constanalysis")) {
      option_fi_constanalysis=true;
    }
    if (args.count("csv-fi-constanalysis")) {
      csvConstResultFileName=args["csv-fi-constanalysis"].as<string>().c_str();
      option_fi_constanalysis=true;
    }
    if(args.count("at-analysis")) {
      option_at_analysis=true;
    }
    // clean up string-options in argv
    for (int i=1; i<argc; ++i) {
      if (string(argv[i]) == "--prefix" 
          || string(argv[i]) == "--csv-const-result"
          ) {
        // do not confuse ROSE frontend
        argv[i] = strdup("");
        assert(i+1<argc);
        argv[i+1] = strdup("");
      }
    }

    cout << "INIT: Parsing and creating AST."<<endl;
    boolOptions.registerOption("semantic-fold",false); // temporary
    boolOptions.registerOption("post-semantic-fold",false); // temporary
    SgProject* root = frontend(argc,argv);
    //  AstTests::runAllTests(root);

   if(option_stats) {
      SPRAY::ProgramStatistics::printBasicCodeInfo(root);
    }

  cout<<"STATUS: computing variableid mapping"<<endl;
  VariableIdMapping variableIdMapping;
  if (args.count("print-varidmapping-array")) {
    variableIdMapping.setModeVariableIdForEachArrayElement(true);
  }
  variableIdMapping.computeVariableSymbolMapping(root);
  cout<<"VariableIdMapping size: "<<variableIdMapping.getVariableIdSet().size()<<endl;
  Labeler* labeler=new Labeler(root);
  //cout<<"Labelling:\n"<<labeler->toString()<<endl;

#if 0
  IOLabeler* iolabeler=new IOLabeler(root,&variableIdMapping);
  //cout<<"IOLabelling:\n"<<iolabeler->toString()<<endl;
#endif

  if (args.count("print-varidmapping")||args.count("print-varidmapping-array")) {
    variableIdMapping.toStream(cout);
  }

  runAnalyses(root, labeler, &variableIdMapping);

  cout << "INFO: generating annotated source code."<<endl;
  root->unparse(0,0);

  if(option_rose_rd_analysis) {
    Experimental::RoseRDAnalysis::generateRoseRDDotFiles(labeler,root);
  }

  cout<< "STATUS: finished."<<endl;

  // main function try-catch
  } catch(char* str) {
    cerr << "*Exception raised: " << str << endl;
    return 1;
  } catch(const char* str) {
    cerr << "Exception raised: " << str << endl;
    return 1;
  } catch(string str) {
    cerr << "Exception raised: " << str << endl;
    return 1;
  }
  return 0;
}
Ejemplo n.º 2
0
void runAnalyses(SgProject* root, Labeler* labeler, VariableIdMapping* variableIdMapping) {

  SPRAY::DFAnalysisBase::normalizeProgram(root);

  if(option_fi_constanalysis) {
    VarConstSetMap varConstSetMap;
    FIConstAnalysis fiConstAnalysis(variableIdMapping);
    fiConstAnalysis.runAnalysis(root);
    fiConstAnalysis.attachAstAttributes(labeler,"const-analysis-inout"); // not iolabeler
    if(csvConstResultFileName) {
      cout<<"INFO: generating const CSV file "<<option_prefix+csvConstResultFileName<<endl;
      fiConstAnalysis.writeCvsConstResult(*variableIdMapping, option_prefix+csvConstResultFileName);
    }
    cout << "INFO: annotating analysis results as comments."<<endl;
    AstAnnotator ara(labeler);
    ara.annotateAstAttributesAsCommentsBeforeStatements(root, "const-analysis-inout");
    ara.annotateAstAttributesAsCommentsAfterStatements(root, "const-analysis-inout");
  }

  if(option_at_analysis) {
    cout<<"STATUS: running address taken analysis."<<endl;
    cout << "STATUS: computing variable and function mappings."<<endl;
    // compute variableId mappings
    VariableIdMapping variableIdMapping;
    variableIdMapping.computeVariableSymbolMapping(root);
    // Compute function id mappings:
    FunctionIdMapping functionIdMapping;
    functionIdMapping.computeFunctionSymbolMapping(root);

    if(option_trace) {
      std::cout << std::endl << "TRACE: Variable Id Mapping:" << std::endl;
      variableIdMapping.toStream(std::cout);
      std::cout << std::endl << "TRACE: Function Id Mapping:" << std::endl;
      functionIdMapping.toStream(std::cout);
    }

    cout << "STATUS: computing address taken sets."<<endl;
    SPRAY::FIPointerAnalysis fipa(&variableIdMapping, &functionIdMapping, root);
    fipa.initialize();
    fipa.run();

    //cout << "STATUS: computed address taken sets:"<<endl;
    //fipa.getFIPointerInfo()->printInfoSets();

    bool createCsv = false;
    ofstream addressTakenCsvFile;
    if(csvAddressTakenResultFileName) {
      std::string addressTakenCsvFileName = option_prefix;
      addressTakenCsvFileName += csvAddressTakenResultFileName;
      addressTakenCsvFile.open(addressTakenCsvFileName.c_str());
      createCsv = true;
    }

    cout << "INFO: annotating declarations of address taken variables and functions."<<endl;

    // Annotate declarations/definitions of variables from which the address was taken:
    VariableIdSet addressTakenVariableIds = fipa.getAddressTakenVariables();
    for(VariableIdSet::const_iterator idIter = addressTakenVariableIds.begin(); idIter != addressTakenVariableIds.end(); ++idIter) {
      // Determine the variable declaration/definition:
      SgLocatedNode* decl = variableIdMapping.getVariableDeclaration(*idIter);
      if(!decl) {
        // The current variable is presumably a function parameter: Try to get the initialized name:
        SgVariableSymbol* varSymbol = isSgVariableSymbol(variableIdMapping.getSymbol(*idIter));
        ROSE_ASSERT(varSymbol);
        SgInitializedName* paramDecl = isSgInitializedName(varSymbol->get_declaration());
        // We should not have a real variable declaration for the parameter:
        ROSE_ASSERT(isSgFunctionParameterList(paramDecl->get_declaration()));

        // Use the InitializedName:
        decl = paramDecl;
      }

      if(decl) {
        // Create the comment:
        ostringstream commentStream;
        commentStream << "/* Address of \"" << variableIdMapping.variableName(*idIter) << "\" is "
                      << "presumably taken.*/";

        // Annotate first declaration:
        insertComment(commentStream.str(), PreprocessingInfo::before, decl);
        // TODO: Annotate other declarations too!

        // Annotate definition if available (e.g. not available in case of parameter):
        if(SgDeclarationStatement* variableDeclaration = isSgDeclarationStatement(decl)) {
          if(SgDeclarationStatement* definingDeclaration = variableDeclaration->get_definingDeclaration()) {
            insertComment(commentStream.str(), PreprocessingInfo::before, definingDeclaration);
          }
        }

        if(createCsv) {
          // Write variable info to csv:
          addressTakenCsvFile << VariableId::idKindIndicator << ","
                              // The id of the variable (id codes are influenced by the used system headers
                              //  and are therefore not stable/portable):
                              << (option_csv_stable ? string("<unstable>") : int_to_string((*idIter).getIdCode())) << ","
                              // Name of the variable:
                              << variableIdMapping.variableName(*idIter) << ","

                              // TODO: Mangled scope and type are currently not stable/portable
                              //  (see comments in getScopeAsMangledStableString(...))
                              // Mangled type of the variable (non-mangled type may contain commas (e.g. "A<int,bool>"):
                              << (option_csv_stable ? string("<unstable>") : variableIdMapping.getType(*idIter)->get_mangled().getString()) << ","
                              // Mangled scope of the variable:
                              << (option_csv_stable ? string("<unstable>") : getScopeAsMangledStableString(decl)) << ","

                              // Is the address taken? (currently only address taken variables are output to csv)
                              << "1" << endl;
        }
      }
      else {
        cout << "ERROR: No declaration for " << variableIdMapping.uniqueShortVariableName(*idIter) << " available." << endl;
        ROSE_ASSERT(false);
      }
    }

    // Annotate declarations and definitions of functions from which the address was taken:
    FunctionIdSet addressTakenFunctionIds = fipa.getAddressTakenFunctions();
    for(FunctionIdSet::const_iterator idIter = addressTakenFunctionIds.begin(); idIter != addressTakenFunctionIds.end(); ++idIter) {

      if(SgFunctionDeclaration* decl = functionIdMapping.getFunctionDeclaration(*idIter)) {
        // Create the comment:
        ostringstream commentStream;
        commentStream << "/* Address of \"" << functionIdMapping.getFunctionNameFromFunctionId(*idIter) << "(...)\" is "
                      << "presumably taken.*/";

        // Annotate first declaration:
        insertComment(commentStream.str(), PreprocessingInfo::before, decl);
        // TODO: Annotate other declarations too!

        // Annotate definition if available:
        if(SgDeclarationStatement* definingDeclaration = decl->get_definingDeclaration()) {
          insertComment(commentStream.str(), PreprocessingInfo::before, definingDeclaration);
        }

        if(createCsv) {
          addressTakenCsvFile << FunctionId::idKindIndicator << ","
                              // The id of the function (id codes are influenced by the used system headers
                              //  and are therefore not stable/portable):
                              << (option_csv_stable ? string("<unstable>") : int_to_string((*idIter).getIdCode())) << ","
                              // Name of the function:
                              << functionIdMapping.getFunctionNameFromFunctionId(*idIter) << ","

                              // TODO: Mangled scope and type are currently not stable/portable
                              //  (see comments in getScopeAsMangledStableString(...))
                              // Mangled type of the function (non-mangled type may contain commas (e.g. "void (A<int,bool>)"):
                              << (option_csv_stable ? string("<unstable>") : functionIdMapping.getTypeFromFunctionId(*idIter)->get_mangled().getString()) << ","
                              // Mangled scope of the function:
                              << (option_csv_stable ? string("<unstable>") :getScopeAsMangledStableString(decl)) << ","

                              // Is the address taken? (currently only address taken functions are output to csv)
                              << "1" << endl;
        }
      }
      else {
        cout << "ERROR: No declaration for " << functionIdMapping.getUniqueShortNameFromFunctionId(*idIter) << " available." << endl;
        ROSE_ASSERT(false);
      }
    }

    if(createCsv) {
      addressTakenCsvFile.close();
    }

#if 0
    VariableIdSet vidset=fipa.getModByPointer();
    cout<<"mod-set: "<<SPRAY::VariableIdSetPrettyPrint::str(vidset,variableIdMapping)<<endl;
#endif
  }
  
  if(option_interval_analysis) {
    cout << "STATUS: creating interval analyzer."<<endl;
    SPRAY::IntervalAnalysis* intervalAnalyzer=new SPRAY::IntervalAnalysis();
    cout << "STATUS: initializing interval analyzer."<<endl;
    intervalAnalyzer->setNoTopologicalSort(option_no_topological_sort);
    intervalAnalyzer->initialize(root);
    cout << "STATUS: running pointer analysis."<<endl;
    ROSE_ASSERT(intervalAnalyzer->getVariableIdMapping());
    SPRAY::FIPointerAnalysis* fipa=new FIPointerAnalysis(intervalAnalyzer->getVariableIdMapping(), intervalAnalyzer->getFunctionIdMapping(), root);
    fipa->initialize();
    fipa->run();
    intervalAnalyzer->setPointerAnalysis(fipa);
    cout << "STATUS: initializing interval transfer functions."<<endl;
    intervalAnalyzer->initializeTransferFunctions();
    cout << "STATUS: initializing interval global variables."<<endl;
    intervalAnalyzer->initializeGlobalVariables(root);
      
    intervalAnalyzer->setSolverTrace(option_trace);
    std::string funtofind="main";
    RoseAst completeast(root);
    SgFunctionDefinition* startFunRoot=completeast.findFunctionByName(funtofind);
    intervalAnalyzer->determineExtremalLabels(startFunRoot);
    intervalAnalyzer->run();

#if 0
    intervalAnalyzer->attachInInfoToAst("iv-analysis-in");
    intervalAnalyzer->attachOutInfoToAst("iv-analysis-out");
    AstAnnotator ara(intervalAnalyzer->getLabeler(),intervalAnalyzer->getVariableIdMapping());
    ara.annotateAstAttributesAsCommentsBeforeStatements(root, "iv-analysis-in");
    ara.annotateAstAttributesAsCommentsAfterStatements(root, "iv-analysis-out");
#else
    AnalysisAstAnnotator ara(intervalAnalyzer->getLabeler(),intervalAnalyzer->getVariableIdMapping());
    ara.annotateAnalysisPrePostInfoAsComments(root,"iv-analysis",intervalAnalyzer);
#endif
    if(option_check_static_array_bounds) {
      checkStaticArrayBounds(root,intervalAnalyzer);
    }
    // schroder3 (2016-08-08): Generate csv-file that contains unreachable statements:
    if(csvDeadCodeUnreachableFileName) {
      // Generate file name and open file:
      std::string deadCodeCsvFileName = option_prefix;
      deadCodeCsvFileName += csvDeadCodeUnreachableFileName;
      ofstream deadCodeCsvFile;
      deadCodeCsvFile.open(deadCodeCsvFileName.c_str());
      // Iteratate over all CFG nodes/ labels:
      for(Flow::const_node_iterator i = intervalAnalyzer->getFlow()->nodes_begin(); i != intervalAnalyzer->getFlow()->nodes_end(); ++i) {
        const Label& label = *i;
        // Do not output a function call twice (only the function call label and not the function call return label):
        if(!intervalAnalyzer->getLabeler()->isFunctionCallReturnLabel(label)) {
          /*const*/ IntervalPropertyState& intervalsLattice = *static_cast<IntervalPropertyState*>(intervalAnalyzer->getPreInfo(label.getId()));
          if(intervalsLattice.isBot()) {
            // Unreachable statement found:
            const SgNode* correspondingNode = intervalAnalyzer->getLabeler()->getNode(label);
            ROSE_ASSERT(correspondingNode);
            // Do not output scope statements ({ }, ...)
            if(!isSgScopeStatement(correspondingNode)) {
              deadCodeCsvFile << correspondingNode->get_file_info()->get_line()
                              << "," << SPRAY::replace_string(correspondingNode->unparseToString(), ",", "/*comma*/")
                              << endl;
            }
          }
        }
      }
      deadCodeCsvFile.close();
    }

    delete fipa;
  }

  if(option_lv_analysis) {
    cout << "STATUS: creating LV analysis."<<endl;
    SPRAY::LVAnalysis* lvAnalysis=new SPRAY::LVAnalysis();
    cout << "STATUS: initializing LV analysis."<<endl;
    lvAnalysis->setBackwardAnalysis();
    lvAnalysis->setNoTopologicalSort(option_no_topological_sort);
    lvAnalysis->initialize(root);
    cout << "STATUS: running pointer analysis."<<endl;
    ROSE_ASSERT(lvAnalysis->getVariableIdMapping());
    SPRAY::FIPointerAnalysis* fipa = new FIPointerAnalysis(lvAnalysis->getVariableIdMapping(), lvAnalysis->getFunctionIdMapping(), root);
    fipa->initialize();
    fipa->run();
    lvAnalysis->setPointerAnalysis(fipa);
    cout << "STATUS: initializing LV transfer functions."<<endl;
    lvAnalysis->initializeTransferFunctions();
    cout << "STATUS: initializing LV global variables."<<endl;
    lvAnalysis->initializeGlobalVariables(root);
    std::string funtofind="main";
    RoseAst completeast(root);
    SgFunctionDefinition* startFunRoot=completeast.findFunctionByName(funtofind);
    cout << "generating icfg_backward.dot."<<endl;
    write_file("icfg_backward.dot", lvAnalysis->getFlow()->toDot(lvAnalysis->getLabeler()));

    lvAnalysis->determineExtremalLabels(startFunRoot);
    lvAnalysis->run();
    cout << "INFO: attaching LV-data to AST."<<endl;
#if 0
    lvAnalysis->attachInInfoToAst("lv-analysis-in");
    lvAnalysis->attachOutInfoToAst("lv-analysis-out");
    AstAnnotator ara(lvAnalysis->getLabeler(),lvAnalysis->getVariableIdMapping());
    ara.annotateAstAttributesAsCommentsBeforeStatements(root, "lv-analysis-in");
    ara.annotateAstAttributesAsCommentsAfterStatements(root, "lv-analysis-out");
#else
    AnalysisAstAnnotator ara(lvAnalysis->getLabeler(),lvAnalysis->getVariableIdMapping());
    ara.annotateAnalysisPrePostInfoAsComments(root,"lv-analysis",lvAnalysis);
#endif

    // schroder3 (2016-08-15): Generate csv-file that contains dead assignments/ initializations:
    if(csvDeadCodeDeadStoreFileName) {
      // Generate file name and open file:
      std::string deadCodeCsvFileName = option_prefix;
      deadCodeCsvFileName += csvDeadCodeDeadStoreFileName;
      ofstream deadCodeCsvFile;
      deadCodeCsvFile.open(deadCodeCsvFileName.c_str());
      if(option_trace) {
        cout << "TRACE: checking for dead stores." << endl;
      }
      // Iteratate over all CFG nodes/ labels:
      for(Flow::const_node_iterator labIter = lvAnalysis->getFlow()->nodes_begin(); labIter != lvAnalysis->getFlow()->nodes_end(); ++labIter) {
        const Label& label = *labIter;
        // Do not output a function call twice (only the function call return label and not the function call label):
        if(!lvAnalysis->getLabeler()->isFunctionCallLabel(label)) {
          /*const*/ SgNode* correspondingNode = lvAnalysis->getLabeler()->getNode(label);
          ROSE_ASSERT(correspondingNode);
          if(/*const*/ SgExprStatement* exprStmt = isSgExprStatement(correspondingNode)) {
            correspondingNode = exprStmt->get_expression();
          }
          /*const*/ SgNode* association = 0;
          // Check if the corresponding node is an assignment or an initialization:
          if(isSgAssignOp(correspondingNode)) {
            association = correspondingNode;
          }
          else if(SgVariableDeclaration* varDecl = isSgVariableDeclaration(correspondingNode)) {
            SgInitializedName* initName = SgNodeHelper::getInitializedNameOfVariableDeclaration(varDecl);
            ROSE_ASSERT(initName);
            // Check whether there is an initialization that can be eliminated (reference initialization can not be eliminated).
            if(!SgNodeHelper::isReferenceType(initName->get_type()) && initName->get_initializer()) {
              association = correspondingNode;
            }
          }

          if(association) {
            if(option_trace) {
              cout << endl << "association: " << association->unparseToString() << endl;
            }
            VariableIdSet assignedVars = AnalysisAbstractionLayer::defVariables(association, *lvAnalysis->getVariableIdMapping(), fipa);
            /*const*/ LVLattice& liveVarsLattice = *static_cast<LVLattice*>(lvAnalysis->getPreInfo(label.getId()));
            if(option_trace) {
              cout << "live: " << liveVarsLattice.toString(lvAnalysis->getVariableIdMapping()) << endl;
              cout << "assigned: " << endl;
            }
            bool minOneIsLive = false;
            for(VariableIdSet::const_iterator assignedVarIter = assignedVars.begin(); assignedVarIter != assignedVars.end(); ++assignedVarIter) {
              if(option_trace) {
                cout << (*assignedVarIter).toString(*lvAnalysis->getVariableIdMapping()) << endl;
              }
              if(liveVarsLattice.exists(*assignedVarIter)) {
                minOneIsLive = true;
                break;
              }
            }
            if(!minOneIsLive) {
              if(option_trace) {
                cout << "association is dead." << endl;
              }
              // assignment to only dead variables found:
              deadCodeCsvFile << correspondingNode->get_file_info()->get_line()
                              << "," << SPRAY::replace_string(correspondingNode->unparseToString(), ",", "/*comma*/")
                              << endl;
            }
          }
        }
      }
      deadCodeCsvFile.close();
    }
    delete lvAnalysis;
  }

  if(option_rd_analysis) {
      cout << "STATUS: creating RD analyzer."<<endl;
      SPRAY::RDAnalysis* rdAnalysis=new SPRAY::RDAnalysis();
      cout << "STATUS: initializing RD analyzer."<<endl;
      rdAnalysis->setNoTopologicalSort(option_no_topological_sort);
      rdAnalysis->initialize(root);
      cout << "STATUS: initializing RD transfer functions."<<endl;
      rdAnalysis->initializeTransferFunctions();
      cout << "STATUS: initializing RD global variables."<<endl;
      rdAnalysis->initializeGlobalVariables(root);
      
      cout << "generating icfg_forward.dot."<<endl;
      write_file("icfg_forward.dot", rdAnalysis->getFlow()->toDot(rdAnalysis->getLabeler()));
    
      std::string funtofind="main";
      RoseAst completeast(root);
      SgFunctionDefinition* startFunRoot=completeast.findFunctionByName(funtofind);
      rdAnalysis->determineExtremalLabels(startFunRoot);
      rdAnalysis->run();
    
      cout << "INFO: attaching RD-data to AST."<<endl;
      rdAnalysis->attachInInfoToAst("rd-analysis-in");
      rdAnalysis->attachOutInfoToAst("rd-analysis-out");
      //printAttributes<RDAstAttribute>(rdAnalysis->getLabeler(),rdAnalysis->getVariableIdMapping(),"rd-analysis-in");
      cout << "INFO: annotating analysis results as comments."<<endl;
      ROSE_ASSERT(rdAnalysis->getVariableIdMapping());
#if 0
      AstAnnotator ara(rdAnalysis->getLabeler(),rdAnalysis->getVariableIdMapping());
      ara.annotateAstAttributesAsCommentsBeforeStatements(root, "rd-analysis-in");
      ara.annotateAstAttributesAsCommentsAfterStatements(root, "rd-analysis-out");
#else
      AnalysisAstAnnotator ara(rdAnalysis->getLabeler(),rdAnalysis->getVariableIdMapping());
      ara.annotateAnalysisPrePostInfoAsComments(root,"rd-analysis",rdAnalysis);
#endif

#if 0
      cout << "INFO: substituting uses with rhs of defs."<<endl;
      substituteUsesWithAvailableExpRhsOfDef("ud-analysis", root, rdAnalysis->getLabeler(), rdAnalysis->getVariableIdMapping());
#endif
      if(option_ud_analysis) {
        ROSE_ASSERT(option_rd_analysis);
        cout << "INFO: generating and attaching UD-data to AST."<<endl;
        createUDAstAttributeFromRDAttribute(rdAnalysis->getLabeler(),"rd-analysis-in", "ud-analysis");
        Flow* flow=rdAnalysis->getFlow();
        cout<<"Flow label-set size: "<<flow->nodeLabels().size()<<endl;
        CFAnalysis* cfAnalyzer0=rdAnalysis->getCFAnalyzer();
        int red=cfAnalyzer0->reduceBlockBeginNodes(*flow);
        cout<<"INFO: eliminated "<<red<<" block-begin nodes in ICFG."<<endl;
        
#if 0
        cout << "INFO: computing program statistics."<<endl;
        ProgramStatistics ps(rdAnalysis->getVariableIdMapping(),
                             rdAnalysis->getLabeler(), 
                             rdAnalysis->getFlow(),
                             "ud-analysis");
        ps.computeStatistics();
        //ps.printStatistics();
        cout << "INFO: generating resource usage visualization."<<endl;
        ps.setGenerateWithSource(false);
        ps.generateResourceUsageICFGDotFile("resourceusageicfg.dot");
        flow->resetDotOptions();
#endif
        cout << "INFO: generating visualization data."<<endl;
        // generate ICFG visualization
        cout << "generating icfg.dot."<<endl;
        write_file("icfg.dot", flow->toDot(rdAnalysis->getLabeler()));
        
        //  cout << "INFO: generating control dependence graph."<<endl;
        //Flow cdg=rdAnalysis->getCFAnalyzer()->controlDependenceGraph(*flow);

        cout << "generating datadependencegraph.dot."<<endl;
        DataDependenceVisualizer ddvis0(rdAnalysis->getLabeler(),
                                        rdAnalysis->getVariableIdMapping(),
                                        "ud-analysis");
        //printAttributes<UDAstAttribute>(rdAnalysis->getLabeler(),rdAnalysis->getVariableIdMapping(),"ud-analysis");
        //ddvis._showSourceCode=false; // for large programs
        ddvis0.generateDefUseDotGraph(root,"datadependencegraph.dot");
        flow->resetDotOptions();
        
        cout << "generating icfgdatadependencegraph.dot."<<endl;
        DataDependenceVisualizer ddvis1(rdAnalysis->getLabeler(),
                                        rdAnalysis->getVariableIdMapping(),
                                        "ud-analysis");
        ddvis1.includeFlowGraphEdges(flow);
        ddvis1.generateDefUseDotGraph(root,"icfgdatadependencegraph.dot");
        flow->resetDotOptions();
        
        cout << "generating icfgdatadependencegraph_clustered.dot."<<endl;
        DataDependenceVisualizer ddvis2(rdAnalysis->getLabeler(),
                                        rdAnalysis->getVariableIdMapping(),
                                        "ud-analysis");
        ddvis2.generateDotFunctionClusters(root,rdAnalysis->getCFAnalyzer(),"icfgdatadependencegraph_clustered.dot",true);
        
        cout << "generating icfg_clustered.dot."<<endl;
        DataDependenceVisualizer ddvis3(rdAnalysis->getLabeler(),
                                        rdAnalysis->getVariableIdMapping(),
                                        "ud-analysis");
        ddvis3.generateDotFunctionClusters(root,rdAnalysis->getCFAnalyzer(),"icfg_clustered.dot",false);
        
      }
    }
}