#include <SVFStatements.h>

Inheritance diagram for SVF::GepStmt:

Public Member Functions
const AccessPath &	getAccessPath () const

const AccessPath::IdxOperandPairs	getOffsetVarAndGepTypePairVec () const

bool	isConstantOffset () const
	Return TRUE if this is a constant location set.

APOffset	accumulateConstantByteOffset () const

APOffset	accumulateConstantOffset () const
	Return accumulated constant offset (when accessing array or struct) if this offset is a constant.

APOffset	getConstantStructFldIdx () const
	Field index of the gep statement if it access the field of a struct.

bool	isVariantFieldGep () const
	Gep statement with a variant field index (pointer arithmetic) for struct field access.

	GepStmt (SVFVar s, SVFVar d, const AccessPath &ap, bool varfld=false)
	constructor

virtual const std::string	toString () const

Public Member Functions inherited from SVF::AssignStmt
SVFVar *	getRHSVar () const

SVFVar *	getLHSVar () const

NodeID	getRHSVarID () const

NodeID	getLHSVarID () const

Public Member Functions inherited from SVF::SVFStmt
	SVFStmt (SVFVar s, SVFVar d, GEdgeFlag k, bool real=true)
	Constructor.

	~SVFStmt ()
	Destructor.

EdgeID	getEdgeID () const
	Return Edge ID.

bool	isPTAEdge () const
	Whether src and dst nodes are both of pointer type.

void	setValue (const SVFVar *val)
	Get/set methods for llvm instruction.

const SVFVar *	getValue () const

void	setBB (const SVFBasicBlock *bb)

const SVFBasicBlock *	getBB () const

void	setICFGNode (ICFGNode *node)

ICFGNode *	getICFGNode () const

Public Member Functions inherited from SVF::GenericEdge< NodeTy >
	GenericEdge (NodeTy s, NodeTy d, GEdgeFlag k)
	Constructor.

virtual	~GenericEdge ()
	Destructor.

NodeID	getSrcID () const
	get methods of the components

NodeID	getDstID () const

GEdgeKind	getEdgeKind () const

GEdgeKind	getEdgeKindWithoutMask () const

NodeType *	getSrcNode () const

NodeType *	getDstNode () const

virtual bool	operator== (const GenericEdge< NodeType > *rhs) const

Static Public Member Functions
static bool	classof (const GepStmt *)
	Methods for support type inquiry through isa, cast, and dyn_cast:

static bool	classof (const SVFStmt *edge)

static bool	classof (const GenericPAGEdgeTy *edge)

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

static bool	classof (const SVFStmt *edge)

static bool	classof (const GenericPAGEdgeTy *edge)

Static Public Member Functions inherited from SVF::SVFStmt
static bool	classof (const SVFStmt *)
	ClassOf.

static bool	classof (const GenericPAGEdgeTy *edge)

static GEdgeFlag	makeEdgeFlagWithAddionalOpnd (GEdgeKind k, const SVFVar *var)

static GEdgeFlag	makeEdgeFlagWithCallInst (GEdgeKind k, const ICFGNode *cs)

static GEdgeFlag	makeEdgeFlagWithStoreInst (GEdgeKind k, const ICFGNode *store)

Private Member Functions
	GepStmt (const GepStmt &)
	place holder

void	operator= (const GepStmt &)
	place holder

Private Attributes
AccessPath	ap
	Access path of the GEP edge.

bool	variantField
	Gep statement with a variant field index (pointer arithmetic) for struct field access (e.g., p = &(q + f), where f is a variable)

Additional Inherited Members
Public Types inherited from SVF::SVFStmt
enum	PEDGEK { Addr , Copy , Store , Load , Call , Ret , Gep , Phi , Select , Cmp , BinaryOp , UnaryOp , Branch , ThreadFork , ThreadJoin }

typedef GenericNode< SVFVar, SVFStmt >::GEdgeSetTy	SVFStmtSetTy

typedef Map< EdgeID, SVFStmtSetTy >	PAGEdgeToSetMapTy

typedef PAGEdgeToSetMapTy	KindToSVFStmtMapTy

typedef SVFStmtSetTy	PAGEdgeSetTy

Public Types inherited from SVF::GenericEdge< NodeTy >
typedef NodeTy	NodeType
	Node type.

typedef u64_t	GEdgeFlag

typedef s64_t	GEdgeKind

typedef struct SVF::GenericEdge::equalGEdge	equalGEdge
	Add the hash function for std::set (we also can overload operator< to implement this)

Static Public Attributes inherited from SVF::SVFStmt
static u32_t	totalEdgeNum
	Total edge number.

Protected Member Functions inherited from SVF::AssignStmt
	AssignStmt (SVFVar s, SVFVar d, GEdgeFlag k)
	constructor

Protected Member Functions inherited from SVF::SVFStmt
	SVFStmt (GEdgeFlag k)
	Private constructor for reading SVFIR from file without side-effect.

Static Protected Attributes inherited from SVF::GenericEdge< NodeTy >
static constexpr unsigned char	EdgeKindMaskBits = 8
	We use the lower 8 bits to denote edge kind.

static constexpr u64_t	EdgeKindMask = (~0ULL) >> (64 - EdgeKindMaskBits)

Detailed Description

Gep statement for struct field access, array access and pointer arithmetic

Definition at line 502 of file SVFStatements.h.

Constructor & Destructor Documentation

◆ GepStmt() [1/2]

SVF::GepStmt::GepStmt ( const GepStmt & )

private

place holder

◆ GepStmt() [2/2]

SVF::GepStmt::GepStmt	(	SVFVar *	s,
		SVFVar *	d,
		const AccessPath &	ap,
		bool	varfld = `false`
	)

inline

constructor

Definition at line 570 of file SVFStatements.h.

        : AssignStmt(s, d, SVFStmt::Gep), ap(ap), variantField(varfld)
    {
    }

Member Function Documentation

◆ accumulateConstantByteOffset()

APOffset SVF::GepStmt::accumulateConstantByteOffset ( ) const

inline

Return accumulated constant offset (when accessing array or struct) if this offset is a constant. elemBytesize is the element byte size of an static alloc or heap alloc array e.g. GepStmt* gep = **, s32_t elemBytesize = LLVMUtil::SVFType2ByteSize(gep->getRHSVar()->getValue()->getType()); APOffset byteOffset = gep->accumulateConstantByteOffset(elemBytesize);

Definition at line 547 of file SVFStatements.h.

    {
        return getAccessPath().computeConstantByteOffset();
    }

◆ accumulateConstantOffset()

APOffset SVF::GepStmt::accumulateConstantOffset ( ) const

inline

Return accumulated constant offset (when accessing array or struct) if this offset is a constant.

Definition at line 553 of file SVFStatements.h.

    {
        return getAccessPath().computeConstantOffset();
    }

◆ classof() [1/3]

static bool SVF::GepStmt::classof ( const GenericPAGEdgeTy * edge )

inlinestatic

Definition at line 522 of file SVFStatements.h.

    {
        return  edge->getEdgeKind() == SVFStmt::Gep;
    }

◆ classof() [2/3]

static bool SVF::GepStmt::classof ( const GepStmt * )

inlinestatic

Methods for support type inquiry through isa, cast, and dyn_cast:

Definition at line 514 of file SVFStatements.h.

    {
        return true;
    }

◆ classof() [3/3]

static bool SVF::GepStmt::classof ( const SVFStmt * edge )

inlinestatic

Definition at line 518 of file SVFStatements.h.

    {
        return  edge->getEdgeKind() == SVFStmt::Gep;
    }

◆ getAccessPath()

const AccessPath & SVF::GepStmt::getAccessPath ( ) const

inline

Definition at line 528 of file SVFStatements.h.

    {
        return ap;
    }

◆ getConstantStructFldIdx()

APOffset SVF::GepStmt::getConstantStructFldIdx ( ) const

inline

Field index of the gep statement if it access the field of a struct.

Definition at line 558 of file SVFStatements.h.

    {
        assert(isVariantFieldGep()==false && "Can't retrieve the AccessPath if using a variable field index (pointer arithmetic) for struct field access ");
        return getAccessPath().getConstantStructFldIdx();
    }

◆ getOffsetVarAndGepTypePairVec()

const AccessPath::IdxOperandPairs SVF::GepStmt::getOffsetVarAndGepTypePairVec ( ) const

inline

Definition at line 532 of file SVFStatements.h.

    {
        return getAccessPath().getIdxOperandPairVec();
    }

◆ isConstantOffset()

bool SVF::GepStmt::isConstantOffset ( ) const

inline

Return TRUE if this is a constant location set.

Definition at line 537 of file SVFStatements.h.

    {
        return getAccessPath().isConstantOffset();
    }

◆ isVariantFieldGep()

bool SVF::GepStmt::isVariantFieldGep ( ) const

inline

Gep statement with a variant field index (pointer arithmetic) for struct field access.

Definition at line 564 of file SVFStatements.h.

    {
        return variantField;
    }

◆ operator=()

void SVF::GepStmt::operator= ( const GepStmt & )

private

place holder

◆ toString()

const std::string GepStmt::toString ( ) const

virtual

Implements SVF::AssignStmt.

Definition at line 218 of file SVFStatements.cpp.

{
    std::string str;
    std::stringstream rawstr(str);
    rawstr << "GepStmt: [Var" << getLHSVarID() << " <-- Var" << getRHSVarID() << "]\t";
    if (Options::ShowSVFIRValue())
    {
        rawstr << "\n";
        rawstr << getValue()->toString();
    }
    return rawstr.str();
}

Member Data Documentation

◆ ap

AccessPath SVF::GepStmt::ap

private

Access path of the GEP edge.

Definition at line 509 of file SVFStatements.h.

◆ variantField

bool SVF::GepStmt::variantField

private

Gep statement with a variant field index (pointer arithmetic) for struct field access (e.g., p = &(q + f), where f is a variable)

Definition at line 510 of file SVFStatements.h.

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

/home/runner/work/SVF/SVF/svf/include/SVFIR/SVFStatements.h
/home/runner/work/SVF/SVF/svf/lib/SVFIR/SVFStatements.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ GepStmt() [1/2]

◆ GepStmt() [2/2]

Member Function Documentation

◆ accumulateConstantByteOffset()

◆ accumulateConstantOffset()

◆ classof() [1/3]

◆ classof() [2/3]

◆ classof() [3/3]

◆ getAccessPath()

◆ getConstantStructFldIdx()

◆ getOffsetVarAndGepTypePairVec()

◆ isConstantOffset()

◆ isVariantFieldGep()

◆ operator=()

◆ toString()

Member Data Documentation

◆ ap

◆ variantField