#include <Andersen.h>

Inheritance diagram for SVF::AndersenLCD:

Public Member Functions
	AndersenLCD (PAG *_pag, PTATY type=AndersenLCD_WPA)

Public Member Functions inherited from SVF::Andersen
	Andersen (PAG *_pag, PTATY type=Andersen_WPA, bool alias_check=true)
	Constructor. More...

virtual	~Andersen ()
	Destructor. More...

virtual void	initialize ()
	Initialize analysis. More...

virtual void	finalize ()
	Finalize analysis. More...

void	resetData ()
	Reset data. More...

virtual const PointsTo &	getPts (NodeID id)
	Operation of points-to set. More...

virtual bool	unionPts (NodeID id, const PointsTo &target)

virtual bool	unionPts (NodeID id, NodeID ptd)

void	dumpTopLevelPtsTo ()

void	setPWCOpt (bool flag)

bool	mergePWC () const

void	setDiffOpt (bool flag)

bool	enableDiff () const

NodeID	sccRepNode (NodeID id) const
	SCC methods. More...

NodeBS &	sccSubNodes (NodeID repId)

Public Member Functions inherited from SVF::AndersenBase
	AndersenBase (PAG *_pag, PTATY type=Andersen_BASE, bool alias_check=true)
	Constructor. More...

virtual	~AndersenBase ()
	Destructor. More...

virtual void	analyze () override
	Andersen analysis. More...

ConstraintGraph *	getConstraintGraph ()
	Get constraint graph. More...

void	printStat ()
	dump statistics More...

virtual void	normalizePointsTo () override

void	cleanConsCG (NodeID id)
	remove redundant gepnodes in constraint graph More...

Public Member Functions inherited from SVF::BVDataPTAImpl
	BVDataPTAImpl (PAG *pag, PointerAnalysis::PTATY type, bool alias_check=true)
	Constructor. More...

virtual	~BVDataPTAImpl ()
	Destructor. More...

void	destroy ()
	Release memory. More...

virtual void	clearPts (NodeID id, NodeID element)
	Remove element from the points-to set of id. More...

virtual void	clearFullPts (NodeID id)
	Clear points-to set of id. More...

virtual void	clearAllPts ()
	Clear all data. More...

virtual void	expandFIObjs (const PointsTo &pts, PointsTo &expandedPts)
	Expand FI objects. More...

virtual AliasResult	alias (const MemoryLocation &LocA, const MemoryLocation &LocB)
	Interface expose to users of our pointer analysis, given Location infos. More...

virtual AliasResult	alias (const Value V1, const Value V2)
	Interface expose to users of our pointer analysis, given Value infos. More...

virtual AliasResult	alias (NodeID node1, NodeID node2)
	Interface expose to users of our pointer analysis, given PAGNodeID. More...

virtual AliasResult	alias (const PointsTo &pts1, const PointsTo &pts2)
	Interface expose to users of our pointer analysis, given two pts. More...

virtual const NodeBS &	getRevPts (NodeID nodeId)

virtual bool	addPts (NodeID id, NodeID ptd)

virtual void	writeToFile (const std::string &filename)
	Interface for analysis result storage on filesystem. More...

virtual bool	readFromFile (const std::string &filename)

virtual void	dumpCPts ()
	dump and debug, print out conditional pts More...

virtual void	dumpAllPts ()

Public Member Functions inherited from SVF::PointerAnalysis
Size_t	getNumOfResolvedIndCallEdge () const
	Return number of resolved indirect call edges. More...

PTACallGraph *	getPTACallGraph () const
	Return call graph. More...

CallGraphSCC *	getCallGraphSCC () const
	Return call graph SCC. More...

	PointerAnalysis (PAG *pag, PTATY ty=Default_PTA, bool alias_check=true)
	Constructor. More...

PTATY	getAnalysisTy () const
	Type of pointer analysis. More...

PTAImplTy	getImplTy () const
	Return implementation type of the pointer analysis. More...

PTAStat *	getStat () const
	Get PTA stat. More...

SVFModule *	getModule () const
	Module. More...

OrderedNodeSet &	getAllValidPtrs ()
	Get all Valid Pointers for resolution. More...

virtual	~PointerAnalysis ()
	Destructor. More...

virtual void	computeDDAPts (NodeID)
	Compute points-to results on-demand, overridden by derived classes. More...

virtual void	clearPts ()
	Clear points-to data. More...

void	printIndCSTargets (const CallBlockNode *cs, const FunctionSet &targets)
	Print targets of a function pointer. More...

void	dumpStat ()
	Dump the statistics. More...

bool	printStat ()
	Whether print statistics. More...

void	disablePrintStat ()
	Whether print statistics. More...

virtual void	resolveIndCalls (const CallBlockNode cs, const PointsTo &target, CallEdgeMap &newEdges, LLVMCallGraph callgraph=nullptr)
	Resolve indirect call edges. More...

bool	matchArgs (const CallBlockNode cs, const SVFFunction callee)
	Match arguments for callsite at caller and callee. More...

CommonCHGraph *	getCHGraph () const
	get CHGraph More...

void	getVFnsFromCHA (const CallBlockNode *cs, VFunSet &vfns)

void	getVFnsFromPts (const CallBlockNode *cs, const PointsTo &target, VFunSet &vfns)

void	connectVCallToVFns (const CallBlockNode *cs, const VFunSet &vfns, CallEdgeMap &newEdges)

virtual void	resolveCPPIndCalls (const CallBlockNode *cs, const PointsTo &target, CallEdgeMap &newEdges)
	Resolve cpp indirect call edges. More...

const TypeSystem *	getTypeSystem () const
	get TypeSystem More...

PAG *	getPAG () const

virtual void	dumpPts (NodeID ptr, const PointsTo &pts)

void	printIndCSTargets ()

void	dumpAllTypes ()

bool	containBlackHoleNode (const PointsTo &pts)
	Determine whether a points-to contains a black hole or constant node. More...

bool	containConstantNode (const PointsTo &pts)

virtual bool	isBlkObjOrConstantObj (NodeID ptd) const

bool	isNonPointerObj (NodeID ptd) const

bool	isHeapMemObj (NodeID id) const
	Whether this object is heap or array. More...

bool	isArrayMemObj (NodeID id) const

bool	isFIObjNode (NodeID id) const

NodeID	getBaseObjNode (NodeID id)

NodeID	getFIObjNode (NodeID id)

NodeID	getGepObjNode (NodeID id, const LocationSet &ls)

virtual const NodeBS &	getAllFieldsObjNode (NodeID id)

void	setObjFieldInsensitive (NodeID id)

bool	isFieldInsensitive (NodeID id) const

CallEdgeMap &	getIndCallMap ()
	Get callees from an indirect callsite. More...

bool	hasIndCSCallees (const CallBlockNode *cs) const

const FunctionSet &	getIndCSCallees (const CallBlockNode *cs) const

void	callGraphSCCDetection ()
	CallGraph SCC related methods. More...

NodeID	getCallGraphSCCRepNode (NodeID id) const
	Get SCC rep node of a SVFG node. More...

bool	inSameCallGraphSCC (const SVFFunction fun1, const SVFFunction fun2)
	Return TRUE if this edge is inside a CallGraph SCC, i.e., src node and dst node are in the same SCC on the SVFG. More...

bool	isInRecursion (const SVFFunction *fun) const

bool	isLocalVarInRecursiveFun (NodeID id) const
	Whether a local variable is in function recursions. More...

Static Public Member Functions
static AndersenLCD *	createAndersenLCD (PAG *_pag)
	Create an singleton instance directly instead of invoking llvm pass manager. More...

static void	releaseAndersenLCD ()

Static Public Member Functions inherited from SVF::Andersen
static bool	classof (const Andersen *)
	Methods for support type inquiry through isa, cast, and dyn_cast: More...

static bool	classof (const PointerAnalysis *pta)

Static Public Member Functions inherited from SVF::AndersenBase
static bool	classof (const AndersenBase *)
	Methods for support type inquiry through isa, cast, and dyn_cast: More...

static bool	classof (const PointerAnalysis *pta)

Static Public Member Functions inherited from SVF::BVDataPTAImpl
static bool	classof (const PointerAnalysis *pta)

Protected Member Functions
void	solveWorklist ()

virtual void	handleCopyGep (ConstraintNode *node)

virtual void	mergeSCC ()

NodeStack &	SCCDetect ()

bool	mergeSrcToTgt (NodeID nodeId, NodeID newRepId)


bool	hasLCDCandidate () const

void	cleanLCDCandidate ()

void	addLCDCandidate (NodeID nodeId)


bool	isMetEdge (ConstraintEdge *edge) const

void	addMetEdge (ConstraintEdge *edge)

Protected Member Functions inherited from SVF::Andersen
void	heapAllocatorViaIndCall (CallSite cs, NodePairSet &cpySrcNodes)

virtual void	computeDiffPts (NodeID id)
	Handle diff points-to set. More...

virtual const PointsTo &	getDiffPts (NodeID id)

void	updatePropaPts (NodeID dstId, NodeID srcId)
	Handle propagated points-to set. More...

void	clearPropaPts (NodeID src)

virtual void	initWorklist ()

virtual void	setSCCEdgeFlag (ConstraintNode::SCCEdgeFlag f)

virtual void	processNode (NodeID nodeId)
	Override WPASolver function in order to use the default solver. More...

virtual bool	addCopyEdge (NodeID src, NodeID dst)
	Add copy edge on constraint graph. More...

virtual bool	updateCallGraph (const CallSiteToFunPtrMap &callsites)
	Update call graph for the input indirect callsites. More...

void	connectCaller2CalleeParams (CallSite cs, const SVFFunction *F, NodePairSet &cpySrcNodes)
	Connect formal and actual parameters for indirect callsites. More...

virtual void	mergeNodeToRep (NodeID nodeId, NodeID newRepId)
	Merge sub node to its rep. More...

void	updateNodeRepAndSubs (NodeID nodeId, NodeID newRepId)
	Updates subnodes of its rep, and rep node of its subs. More...

void	sanitizePts ()
	Sanitize pts for field insensitive objects. More...

virtual const std::string	PTAName () const
	Get PTA name. More...

virtual bool	matchType (NodeID, NodeID, const NormalGepCGEdge *)
	match types for Gep Edges More...

virtual void	addTypeForGepObjNode (NodeID, const NormalGepCGEdge *)
	add type for newly created GepObjNode More...

void	processAllAddr ()
	handling various constraints More...

virtual bool	processLoad (NodeID node, const ConstraintEdge *load)

virtual bool	processStore (NodeID node, const ConstraintEdge *load)

virtual bool	processCopy (NodeID node, const ConstraintEdge *edge)

virtual bool	processGep (NodeID node, const GepCGEdge *edge)

virtual void	handleLoadStore (ConstraintNode *node)

virtual void	processAddr (const AddrCGEdge *addr)

virtual bool	processGepPts (const PointsTo &pts, const GepCGEdge *edge)

void	mergeSccNodes (NodeID repNodeId, const NodeBS &subNodes)
	Merge sub node in a SCC cycle to their rep node. More...

void	mergeSccCycle ()

void	collapsePWCNode (NodeID nodeId)
	Collapse a field object into its base for field insensitive anlaysis. More...

void	collapseFields ()

bool	collapseNodePts (NodeID nodeId)

bool	collapseField (NodeID nodeId)

Protected Member Functions inherited from SVF::WPASolver< GraphType >
	WPASolver ()
	Constructor. More...

virtual	~WPASolver ()
	Destructor. More...

SCC *	getSCCDetector () const
	Get SCC detector. More...

virtual NodeStack &	SCCDetect (NodeSet &candidates)

GNODE *	Node (NodeID id)
	Get node on the graph. More...

NodeID	Node_Index (GNODE node)
	Get node ID. More...

const GraphType	graph ()
	Get/Set graph methods. More...

void	setGraph (GraphType g)

virtual void	propagate (GNODE *v)

virtual bool	propFromSrcToDst (GEDGE *)
	Propagate information from source to destination node, to be implemented in the child class. More...

NodeID	popFromWorklist ()
	Worklist operations. More...

virtual void	pushIntoWorklist (NodeID id)

bool	isWorklistEmpty ()

bool	isInWorklist (NodeID id)

Protected Member Functions inherited from SVF::BVDataPTAImpl
PTDataTy *	getPTDataTy () const
	Get points-to data structure. More...

DiffPTDataTy *	getDiffPTDataTy () const

DFPTDataTy *	getDFPTDataTy () const

MutDFPTDataTy *	getMutDFPTDataTy () const

VersionedPTDataTy *	getVersionedPTDataTy () const

virtual void	onTheFlyCallGraphSolve (const CallSiteToFunPtrMap &callsites, CallEdgeMap &newEdges)
	On the fly call graph construction. More...

Protected Member Functions inherited from SVF::PointerAnalysis
const CallSiteToFunPtrMap &	getIndirectCallsites () const
	Return all indirect callsites. More...

NodeID	getFunPtr (const CallBlockNode *cs) const
	Return function pointer PAGNode at a callsite cs. More...

bool	dumpGraph ()
	Whether to dump the graph for debugging purpose. More...

void	resetObjFieldSensitive ()
	Reset all object node as field-sensitive. More...

virtual void	validateTests ()
	Alias check functions to verify correctness of pointer analysis. More...

virtual void	validateSuccessTests (std::string fun)

virtual void	validateExpectedFailureTests (std::string fun)

Private Attributes
EdgeSet	metEdges

NodeSet	lcdCandidates

Static Private Attributes
static AndersenLCD *	lcdAndersen = nullptr

Additional Inherited Members
Public Types inherited from SVF::Andersen
typedef SCCDetection< ConstraintGraph * >	CGSCC

typedef OrderedMap< CallSite, NodeID >	CallSite2DummyValPN

Public Types inherited from SVF::WPASolver< GraphType >
typedef llvm::GraphTraits< GraphType >	GTraits
	Define the GTraits and node iterator for printing. More...

typedef GTraits::NodeRef	GNODE

typedef GTraits::EdgeType	GEDGE

typedef GTraits::ChildIteratorType	child_iterator

typedef SCCDetection< GraphType >	SCC

typedef FIFOWorkList< NodeID >	WorkList

Public Types inherited from SVF::BVDataPTAImpl
typedef PTData< NodeID, NodeBS, NodeID, PointsTo >	PTDataTy

typedef MutablePTData< NodeID, NodeBS, NodeID, PointsTo >	MutPTDataTy

typedef DiffPTData< NodeID, NodeBS, NodeID, PointsTo >	DiffPTDataTy

typedef MutableDiffPTData< NodeID, NodeBS, NodeID, PointsTo >	MutDiffPTDataTy

typedef DFPTData< NodeID, NodeBS, NodeID, PointsTo >	DFPTDataTy

typedef MutableDFPTData< NodeID, NodeBS, NodeID, PointsTo >	MutDFPTDataTy

typedef IncMutableDFPTData< NodeID, NodeBS, NodeID, PointsTo >	IncMutDFPTDataTy

typedef VersionedPTData< NodeID, NodeBS, NodeID, PointsTo, VersionedVar, Set< VersionedVar > >	VersionedPTDataTy

typedef MutableVersionedPTData< NodeID, NodeBS, NodeID, PointsTo, VersionedVar, Set< VersionedVar > >	MutVersionedPTDataTy

Public Types inherited from SVF::PointerAnalysis
enum	PTATY { Andersen_BASE, Andersen_WPA, AndersenLCD_WPA, AndersenHCD_WPA, AndersenHLCD_WPA, AndersenSCD_WPA, AndersenSFR_WPA, AndersenWaveDiff_WPA, AndersenWaveDiffWithType_WPA, Steensgaard_WPA, CSCallString_WPA, CSSummary_WPA, FSDATAFLOW_WPA, FSSPARSE_WPA, FSTBHC_WPA, VFS_WPA, FSCS_WPA, FSCSPS_WPA, ADAPTFSCS_WPA, ADAPTFSCSPS_WPA, TypeCPP_WPA, FieldS_DDA, FlowS_DDA, PathS_DDA, Cxt_DDA, Default_PTA }
	Pointer analysis type list. More...

enum	PTAImplTy { BaseImpl, BVDataImpl, CondImpl }
	Implementation type: BVDataPTAImpl or CondPTAImpl. More...

typedef llvm::AliasAnalysis	AliasAnalysis
	Indirect call edges type, map a callsite to a set of callees. More...

typedef Set< const CallBlockNode * >	CallSiteSet

typedef PAG::CallSiteToFunPtrMap	CallSiteToFunPtrMap

typedef Set< const SVFFunction * >	FunctionSet

typedef OrderedMap< const CallBlockNode *, FunctionSet >	CallEdgeMap

typedef SCCDetection< PTACallGraph * >	CallGraphSCC

typedef Set< const GlobalValue * >	VTableSet

typedef Set< const SVFFunction * >	VFunSet

Public Attributes inherited from SVF::AndersenBase
NodeBS	redundantGepNodes

Public Attributes inherited from SVF::WPASolver< GraphType >
u32_t	numOfIteration
	num of iterations during constaint solving More...

Static Public Attributes inherited from SVF::AndersenBase
static Size_t	numOfProcessedAddr = 0
	Statistics. More...

static Size_t	numOfProcessedCopy = 0
	Number of processed Addr edge. More...

static Size_t	numOfProcessedGep = 0
	Number of processed Copy edge. More...

static Size_t	numOfProcessedLoad = 0
	Number of processed Gep edge. More...

static Size_t	numOfProcessedStore = 0
	Number of processed Load edge. More...

static Size_t	numOfSfrs = 0
	Number of processed Store edge. More...

static Size_t	numOfFieldExpand = 0

static Size_t	numOfSCCDetection = 0

static double	timeOfSCCDetection = 0

static double	timeOfSCCMerges = 0

static double	timeOfCollapse = 0

static Size_t	AveragePointsToSetSize = 0

static Size_t	MaxPointsToSetSize = 0

static double	timeOfProcessCopyGep = 0

static double	timeOfProcessLoadStore = 0

static double	timeOfUpdateCallGraph = 0

Static Public Attributes inherited from SVF::PointerAnalysis
static const std::string	aliasTestMayAlias = "MAYALIAS"

static const std::string	aliasTestMayAliasMangled = "_Z8MAYALIASPvS_"

static const std::string	aliasTestNoAlias = "NOALIAS"

static const std::string	aliasTestNoAliasMangled = "_Z7NOALIASPvS_"

static const std::string	aliasTestPartialAlias = "PARTIALALIAS"

static const std::string	aliasTestPartialAliasMangled = "_Z12PARTIALALIASPvS_"

static const std::string	aliasTestMustAlias = "MUSTALIAS"

static const std::string	aliasTestMustAliasMangled = "_Z9MUSTALIASPvS_"

static const std::string	aliasTestFailMayAlias = "EXPECTEDFAIL_MAYALIAS"

static const std::string	aliasTestFailMayAliasMangled = "_Z21EXPECTEDFAIL_MAYALIASPvS_"

static const std::string	aliasTestFailNoAlias = "EXPECTEDFAIL_NOALIAS"

static const std::string	aliasTestFailNoAliasMangled = "_Z20EXPECTEDFAIL_NOALIASPvS_"

Protected Attributes inherited from SVF::Andersen
CallSite2DummyValPN	callsite2DummyValPN
	Map an instruction to a dummy obj which created at an indirect callsite, which invokes a heap allocator. More...

bool	pwcOpt

bool	diffOpt

Protected Attributes inherited from SVF::AndersenBase
ConstraintGraph *	consCG
	Constraint Graph. More...

Protected Attributes inherited from SVF::WPASolver< GraphType >
bool	reanalyze
	Reanalyze if any constraint value changed. More...

u32_t	iterationForPrintStat
	print out statistics for i-th iteration More...

GraphType	_graph
	Graph. More...

SCC *	scc
	SCC. More...

WorkList	worklist
	Worklist for resolution. More...

Protected Attributes inherited from SVF::PointerAnalysis
SVFModule *	svfMod
	Module. More...

PTATY	ptaTy
	Pointer analysis Type. More...

PTAImplTy	ptaImplTy
	PTA implementation type. More...

PTAStat *	stat
	Statistics. More...

PTACallGraph *	ptaCallGraph
	Call graph used for pointer analysis. More...

CallGraphSCC *	callGraphSCC
	SCC for CallGraph. More...

ICFG *	icfg
	Interprocedural control-flow graph. More...

TypeSystem *	typeSystem
	TypeSystem. More...

bool	print_stat
	User input flags. More...

bool	alias_validation
	Flag for validating points-to/alias results. More...

u32_t	OnTheFlyIterBudgetForStat
	Flag for iteration budget for on-the-fly statistics. More...

Static Protected Attributes inherited from SVF::PointerAnalysis
static PAG *	pag = nullptr
	PAG. More...

static CommonCHGraph *	chgraph = nullptr
	CHGraph. More...

Detailed Description

Definition at line 556 of file Andersen.h.

Constructor & Destructor Documentation

◆ AndersenLCD()

SVF::AndersenLCD::AndersenLCD	(	PAG *	_pag,
		PTATY	type = `AndersenLCD_WPA`
	)

inline

Definition at line 565 of file Andersen.h.

                                                          :
         Andersen(_pag, type), metEdges({}), lcdCandidates( {})
     {
     }

Member Function Documentation

◆ addLCDCandidate()

void SVF::AndersenLCD::addLCDCandidate ( NodeID nodeId )

inlineprotected

Definition at line 600 of file Andersen.h.

     {
         lcdCandidates.insert(nodeId);
     };

◆ addMetEdge()

void SVF::AndersenLCD::addMetEdge ( ConstraintEdge * edge )

inlineprotected

Definition at line 613 of file Andersen.h.

     {
         metEdges.insert(edge->getEdgeID());
     };

◆ cleanLCDCandidate()

void SVF::AndersenLCD::cleanLCDCandidate ( )

inlineprotected

Definition at line 596 of file Andersen.h.

     {
         lcdCandidates.clear();
     };

◆ createAndersenLCD()

static AndersenLCD* SVF::AndersenLCD::createAndersenLCD ( PAG * _pag )

inlinestatic

Create an singleton instance directly instead of invoking llvm pass manager.

Definition at line 571 of file Andersen.h.

     {
         if (lcdAndersen == nullptr)
         {
             lcdAndersen = new AndersenLCD(_pag);
             lcdAndersen->analyze();
             return lcdAndersen;
         }
         return lcdAndersen;
     }

◆ handleCopyGep()

void AndersenLCD::handleCopyGep ( ConstraintNode * node )

protectedvirtual

Process copy and gep edges

Reimplemented from SVF::Andersen.

Reimplemented in SVF::AndersenHLCD.

Definition at line 56 of file AndersenLCD.cpp.

 {
     double propStart = stat->getClk();
 
     NodeID nodeId = node->getId();
     computeDiffPts(nodeId);
 
     for (ConstraintEdge* edge : node->getCopyOutEdges())
     {
         NodeID dstNodeId = edge->getDstID();
         const PointsTo& srcPts = getPts(nodeId);
         const PointsTo& dstPts = getPts(dstNodeId);
         // In one edge, if the pts of src node equals to that of dst node, and the edge
         // is never met, push it into 'metEdges' and push the dst node into 'lcdCandidates'
         if (!srcPts.empty() && srcPts == dstPts && !isMetEdge(edge))
         {
             addMetEdge(edge);
             addLCDCandidate((edge)->getDstID());
         }
         processCopy(nodeId, edge);
     }
     for (ConstraintEdge* edge : node->getGepOutEdges())
     {
         if (GepCGEdge* gepEdge = SVFUtil::dyn_cast<GepCGEdge>(edge))
             processGep(nodeId, gepEdge);
     }
 
     double propEnd = stat->getClk();
     timeOfProcessCopyGep += (propEnd - propStart) / TIMEINTERVAL;
 }

◆ hasLCDCandidate()

bool SVF::AndersenLCD::hasLCDCandidate ( ) const

inlineprotected

Definition at line 592 of file Andersen.h.

     {
         return !lcdCandidates.empty();
     };

◆ isMetEdge()

bool SVF::AndersenLCD::isMetEdge ( ConstraintEdge * edge ) const

inlineprotected

Definition at line 608 of file Andersen.h.

     {
         EdgeSet::const_iterator it = metEdges.find(edge->getEdgeID());
         return it != metEdges.end();
     };

◆ mergeSCC()

void AndersenLCD::mergeSCC ( )

protectedvirtual

Collapse nodes and fields based on 'lcdCandidates'

Definition at line 90 of file AndersenLCD.cpp.

 {
     if (hasLCDCandidate())
     {
         SCCDetect();
         cleanLCDCandidate();
     }
 }

◆ mergeSrcToTgt()

bool AndersenLCD::mergeSrcToTgt	(	NodeID	nodeId,
		NodeID	newRepId
	)

protectedvirtual

merge nodeId to newRepId. Return true if the newRepId is a PWC node

union pts of node to rep

move the edges from node to rep, and remove the node

set rep and sub relations

Reimplemented from SVF::Andersen.

Reimplemented in SVF::AndersenHLCD.

Definition at line 130 of file AndersenLCD.cpp.

 {
 
     if(nodeId==newRepId)
         return false;
 
     updatePropaPts(newRepId, nodeId);
     unionPts(newRepId,nodeId);
     pushIntoWorklist(newRepId);
 
     ConstraintNode* node = consCG->getConstraintNode(nodeId);
     bool gepInsideScc = consCG->moveEdgesToRepNode(node, consCG->getConstraintNode(newRepId));
 
     updateNodeRepAndSubs(node->getId(),newRepId);
 
     consCG->removeConstraintNode(node);
 
     return gepInsideScc;
 }

◆ releaseAndersenLCD()

static void SVF::AndersenLCD::releaseAndersenLCD ( )

inlinestatic

Definition at line 582 of file Andersen.h.

     {
         if (lcdAndersen)
             delete lcdAndersen;
         lcdAndersen = nullptr;
     }

◆ SCCDetect()

NodeStack & AndersenLCD::SCCDetect ( )

protectedvirtual

AndersenLCD specified SCC detector, need to input a nodeStack 'lcdCandidate'

Detect SCC cycles

Merge SCC cycles

Reimplemented from SVF::Andersen.

Definition at line 102 of file AndersenLCD.cpp.

 {
     numOfSCCDetection++;
 
     NodeSet sccCandidates;
     sccCandidates.clear();
     for (NodeSet::iterator it = lcdCandidates.begin(); it != lcdCandidates.end(); ++it)
         if (sccRepNode(*it) == *it)
             sccCandidates.insert(*it);
 
     double sccStart = stat->getClk();
     getSCCDetector()->find(sccCandidates);
     double sccEnd = stat->getClk();
     timeOfSCCDetection += (sccEnd - sccStart) / TIMEINTERVAL;
 
     double mergeStart = stat->getClk();
     mergeSccCycle();
     double mergeEnd = stat->getClk();
     timeOfSCCMerges += (mergeEnd - mergeStart) / TIMEINTERVAL;
 
     return getSCCDetector()->topoNodeStack();
 }

◆ solveWorklist()

void AndersenLCD::solveWorklist ( )

protectedvirtual

Reimplemented from SVF::WPASolver< GraphType >.

Reimplemented in SVF::AndersenHLCD.

Definition at line 38 of file AndersenLCD.cpp.

 {
     while (!isWorklistEmpty())
     {
         // Merge detected SCC cycles
         mergeSCC();
 
         NodeID nodeId = popFromWorklist();
         collapsePWCNode(nodeId);
         // Keep solving until workList is empty.
         processNode(nodeId);
         collapseFields();
     }
 }

Member Data Documentation

◆ lcdAndersen

AndersenLCD * AndersenLCD::lcdAndersen = nullptr

staticprivate

Definition at line 560 of file Andersen.h.

◆ lcdCandidates

NodeSet SVF::AndersenLCD::lcdCandidates

private

Definition at line 562 of file Andersen.h.

◆ metEdges

EdgeSet SVF::AndersenLCD::metEdges

private

Definition at line 561 of file Andersen.h.

The documentation for this class was generated from the following files:

/home/runner/work/SVF-1/SVF-1/include/WPA/Andersen.h
/home/runner/work/SVF-1/SVF-1/lib/WPA/AndersenLCD.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ AndersenLCD()

Member Function Documentation

◆ addLCDCandidate()

◆ addMetEdge()

◆ cleanLCDCandidate()

◆ createAndersenLCD()

◆ handleCopyGep()

◆ hasLCDCandidate()

◆ isMetEdge()

◆ mergeSCC()

◆ mergeSrcToTgt()

◆ releaseAndersenLCD()

◆ SCCDetect()

◆ solveWorklist()

Member Data Documentation

◆ lcdAndersen

◆ lcdCandidates

◆ metEdges