// TODO: USEDEF FUNCTIONS : ELIMINATE THIS FUNCTION
// this function assumes that a pointer to an AST subtree representing a LHS of an assignment has been passed
VariableIdMapping::VariableIdSet RDAnalyzer::determineLValueVariableIdSet(SgNode* node) {
VariableIdMapping::VariableIdSet resultSet;
// only x=... is supported yet
if(SgVarRefExp* lhsVar=isSgVarRefExp(node)) {
resultSet.insert(_variableIdMapping.variableId(lhsVar));
} else {
cout<<"WARNING: unsupported lhs of assignment: "<<SgNodeHelper::nodeToString(node)<<" ... grabbing all variables."<<std::endl;
RoseAst ast(node);
for(RoseAst::iterator i=ast.begin();i!=ast.end();++i) {
if(SgVarRefExp* lhsVar_i=isSgVarRefExp(node))
resultSet.insert(_variableIdMapping.variableId(lhsVar_i));
}
}
return resultSet;
}
/*!
* \author Markus Schordan
* \date 2012.
*/
VariableIdMapping::VariableIdSet VariableIdMapping::determineVariableIdsOfVariableDeclarations(set<SgVariableDeclaration*> varDecls) {
VariableIdMapping::VariableIdSet resultSet;
for(set<SgVariableDeclaration*>::iterator i=varDecls.begin();i!=varDecls.end();++i) {
SgSymbol* sym=SgNodeHelper::getSymbolOfVariableDeclaration(*i);
if(sym) {
resultSet.insert(variableId(sym));
}
}
return resultSet;
}
VariableIdSet
AnalysisAbstractionLayer::globalVariables(SgProject* project, VariableIdMapping* variableIdMapping) {
list<SgVariableDeclaration*> globalVars=SgNodeHelper::listOfGlobalVars(project);
VariableIdMapping::VariableIdSet globalVarsIdSet;
for(list<SgVariableDeclaration*>::iterator i=globalVars.begin();i!=globalVars.end();++i) {
VariableId globalVarId=variableIdMapping->variableId(*i);
globalVarsIdSet.insert(globalVarId);
}
return globalVarsIdSet;
}
/*!
* \author Markus Schordan
* \date 2012.
*/
VariableIdMapping::VariableIdSet VariableIdMapping::determineVariableIdsOfSgInitializedNames(SgInitializedNamePtrList& namePtrList) {
VariableIdMapping::VariableIdSet resultSet;
for(SgInitializedNamePtrList::iterator i=namePtrList.begin();i!=namePtrList.end();++i) {
assert(*i);
SgSymbol* sym=SgNodeHelper::getSymbolOfInitializedName(*i);
if(sym) {
resultSet.insert(variableId(sym));
}
}
return resultSet;
}
void
DFAnalyzer<LatticeType>::initialize(SgProject* root) {
cout << "INIT: Creating VariableIdMapping."<<endl;
_variableIdMapping.computeVariableSymbolMapping(root);
cout << "INIT: Creating Labeler."<<endl;
_labeler= new Labeler(root,getVariableIdMapping());
//cout << "INIT: Initializing ExprAnalyzer."<<endl;
//exprAnalyzer.setVariableIdMapping(getVariableIdMapping());
cout << "INIT: Creating CFAnalyzer."<<endl;
_cfanalyzer=new CFAnalyzer(_labeler);
//cout<< "DEBUG: mappingLabelToLabelProperty: "<<endl<<getLabeler()->toString()<<endl;
cout << "INIT: Building CFG for each function."<<endl;
_flow=_cfanalyzer->flow(root);
cout << "STATUS: Building CFGs finished."<<endl;
cout << "INIT: Intra-Flow OK. (size: " << _flow.size() << " edges)"<<endl;
InterFlow interFlow=_cfanalyzer->interFlow(_flow);
cout << "INIT: Inter-Flow OK. (size: " << interFlow.size()*2 << " edges)"<<endl;
_cfanalyzer->intraInterFlow(_flow,interFlow);
cout << "INIT: IntraInter-CFG OK. (size: " << _flow.size() << " edges)"<<endl;
for(long l=0;l<_labeler->numberOfLabels();++l) {
LatticeType le;
_analyzerDataPreInfo.push_back(le);
_analyzerData.push_back(le);
}
cout << "INIT: Optimizing CFGs for label-out-info solver 1."<<endl;
{
size_t numDeletedEdges=_cfanalyzer->deleteFunctioncCallLocalEdges(_flow);
int numReducedNodes=_cfanalyzer->reduceBlockBeginNodes(_flow);
cout << "INIT: Optimization finished (educed nodes: "<<numReducedNodes<<" deleted edges: "<<numDeletedEdges<<")"<<endl;
}
cout << "STATUS: initialized monotone data flow analyzer for "<<_analyzerData.size()<< " labels."<<endl;
#if 0
std::string functionToStartAt="main";
std::string funtofind=functionToStartAt;
RoseAst completeast(root);
SgFunctionDefinition* startFunRoot=completeast.findFunctionByName(funtofind);
if(startFunRoot==0) {
std::cerr << "Function '"<<funtofind<<"' not found.\n";
exit(1);
} else {
// determine label of function
Label startlab=_labeler->getLabel(startFunRoot);
set<Label> elab;
elab.insert(startlab);
setExtremalLabels(elab);
_analyzerData[startlab]=initializeGlobalVariables(root);
cout << "STATUS: Initial info established at label "<<startlab<<endl;
}
#endif
// create empty state
#if 0
PState emptyPState;
const PState* emptyPStateStored=processNew(emptyPState);
assert(emptyPStateStored);
cout << "INIT: Empty state(stored): "<<emptyPStateStored->toString()<<endl;
assert(cfanalyzer);
Label startLabel=cfanalyzer->getLabel(startFunRoot);
if(SgProject* project=isSgProject(root)) {
cout << "STATUS: Number of global variables: ";
list<SgVariableDeclaration*> globalVars=SgNodeHelper::listOfGlobalVars(project);
cout << globalVars.size()<<endl;
list<SgVarRefExp*> varRefExpList=SgNodeHelper::listOfUsedVarsInFunctions(project);
// compute set of varIds (it is a set because we want multiple uses of the same var to be represented by one id)
VariableIdMapping::VariableIdSet setOfUsedVars;
for(list<SgVarRefExp*>::iterator i=varRefExpList.begin();i!=varRefExpList.end();++i) {
setOfUsedVars.insert(variableIdMapping.variableId(*i));
}
cout << "STATUS: Number of used variables: "<<setOfUsedVars.size()<<endl;
int filteredVars=0;
for(list<SgVariableDeclaration*>::iterator i=globalVars.begin();i!=globalVars.end();++i) {
if(setOfUsedVars.find(variableIdMapping.variableId(*i))!=setOfUsedVars.end()) {
globalVarName2VarIdMapping[variableIdMapping.variableName(variableIdMapping.variableId(*i))]=variableIdMapping.variableId(*i);
//estate=analyzeVariableDeclaration(*i,estate,estate.label());
}
else
filteredVars++;
}
cout << "STATUS: Number of filtered variables for initial pstate: "<<filteredVars<<endl;
} else {
cout << "INIT: no global scope.";
}
#endif
}