clang::interp::Pointer Class Reference

A pointer to a memory block, live or dead. More...

#include "/work/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/AST/ByteCode/Pointer.h"

Public Member Functions
	Pointer ()
	Pointer (IntPointer &&IntPtr)
	Pointer (Block *B)
	Pointer (Block *B, uint64_t BaseAndOffset)
	Pointer (const Pointer &P)
	Pointer (Pointer &&P)
	Pointer (uint64_t Address, const Descriptor *Desc, uint64_t Offset=0)
	Pointer (const Function *F, uint64_t Offset=0)
	Pointer (const Type *TypePtr, const Type *TypeInfoType, uint64_t Offset=0)
	Pointer (Block *Pointee, unsigned Base, uint64_t Offset)
	~Pointer ()
Pointer &	operator= (const Pointer &P)
Pointer &	operator= (Pointer &&P)
bool	operator== (const Pointer &P) const
	Equality operators are just for tests.
bool	operator!= (const Pointer &P) const
APValue	toAPValue (const ASTContext &ASTCtx) const
	Converts the pointer to an APValue.
std::string	toDiagnosticString (const ASTContext &Ctx) const
	Converts the pointer to a string usable in diagnostics.
uint64_t	getIntegerRepresentation () const
std::optional< APValue >	toRValue (const Context &Ctx, QualType ResultType) const
	Converts the pointer to an APValue that is an rvalue.
Pointer	atIndex (uint64_t Idx) const
	Offsets a pointer inside an array.
Pointer	atField (unsigned Off) const
	Creates a pointer to a field.
Pointer	atFieldSub (unsigned Off) const
	Subtract the given offset from the current Base and Offset of the pointer.
Pointer	narrow () const
	Restricts the scope of an array element pointer.
Pointer	expand () const
	Expands a pointer to the containing array, undoing narrowing.
bool	isZero () const
	Checks if the pointer is null.
bool	isLive () const
	Checks if the pointer is live.
bool	isField () const
	Checks if the item is a field in an object.
const Descriptor *	getDeclDesc () const
	Accessor for information about the declaration site.
SourceLocation	getDeclLoc () const
DeclTy	getSource () const
	Returns the expression or declaration the pointer has been created for.
Pointer	getBase () const
	Returns a pointer to the object of which this pointer is a field.
Pointer	getArray () const
	Returns the parent array.
const Descriptor *	getFieldDesc () const
	Accessors for information about the innermost field.
QualType	getType () const
	Returns the type of the innermost field.
Pointer	getDeclPtr () const
size_t	elemSize () const
	Returns the element size of the innermost field.
size_t	getSize () const
	Returns the total size of the innermost field.
unsigned	getOffset () const
	Returns the offset into an array.
bool	isArrayRoot () const
	Whether this array refers to an array, but not to the first element.
bool	inArray () const
	Checks if the innermost field is an array.
bool	inUnion () const
bool	inPrimitiveArray () const
	Checks if the structure is a primitive array.
bool	isUnknownSizeArray () const
	Checks if the structure is an array of unknown size.
bool	isArrayElement () const
	Checks if the pointer points to an array.
bool	isRoot () const
	Pointer points directly to a block.
bool	canBeInitialized () const
	If this pointer has an InlineDescriptor we can use to initialize.
const BlockPointer &	asBlockPointer () const
const IntPointer &	asIntPointer () const
const FunctionPointer &	asFunctionPointer () const
const TypeidPointer &	asTypeidPointer () const
bool	isBlockPointer () const
bool	isIntegralPointer () const
bool	isFunctionPointer () const
bool	isTypeidPointer () const
const Record *	getRecord () const
	Returns the record descriptor of a class.
const Record *	getElemRecord () const
	Returns the element record type, if this is a non-primive array.
const FieldDecl *	getField () const
	Returns the field information.
bool	isExtern () const
	Checks if the storage is extern.
bool	isStatic () const
	Checks if the storage is static.
bool	isTemporary () const
	Checks if the storage is temporary.
bool	isDynamic () const
	Checks if the storage has been dynamically allocated.
bool	isStaticTemporary () const
	Checks if the storage is a static temporary.
bool	isMutable () const
	Checks if the field is mutable.
bool	isWeak () const
bool	isActive () const
	Checks if the object is active.
bool	isBaseClass () const
	Checks if a structure is a base class.
bool	isVirtualBaseClass () const
bool	isDummy () const
	Checks if the pointer points to a dummy value.
bool	isConst () const
	Checks if an object or a subfield is mutable.
bool	isConstInMutable () const
bool	isVolatile () const
	Checks if an object or a subfield is volatile.
UnsignedOrNone	getDeclID () const
	Returns the declaration ID.
uint64_t	getByteOffset () const
	Returns the byte offset from the start.
unsigned	getNumElems () const
	Returns the number of elements.
const Block *	block () const
const std::byte *	getRawAddress () const
	If backed by actual data (i.e.
int64_t	getIndex () const
	Returns the index into an array.
bool	isOnePastEnd () const
	Checks if the index is one past end.
bool	isPastEnd () const
	Checks if the pointer points past the end of the object.
bool	isElementPastEnd () const
	Checks if the pointer is an out-of-bounds element pointer.
bool	isZeroSizeArray () const
	Checks if the pointer is pointing to a zero-size array.
template<typename T>
T &	deref () const
	Dereferences the pointer, if it's live.
template<typename T>
T &	elem (unsigned I) const
	Dereferences the element at index I.
bool	isDereferencable () const
	Whether this block can be read from at all.
void	initialize () const
	Initializes a field.
void	initializeElement (unsigned Index) const
	Initialized the given element of a primitive array.
void	initializeAllElements () const
	Initialize all elements of a primitive array at once.
bool	isInitialized () const
	Checks if an object was initialized.
bool	isElementInitialized (unsigned Index) const
	Like isInitialized(), but for primitive arrays.
bool	allElementsInitialized () const
void	activate () const
	Activats a field.
void	deactivate () const
	Deactivates an entire strurcutre.
Lifetime	getLifetime () const
void	endLifetime () const
void	startLifetime () const
ComparisonCategoryResult	compare (const Pointer &Other) const
	Compare two pointers.
bool	pointsToLiteral () const
	Whether this points to a block that's been created for a "literal lvalue", i.e.
bool	pointsToStringLiteral () const
void	print (llvm::raw_ostream &OS) const
	Prints the pointer.
size_t	computeOffsetForComparison (const ASTContext &ASTCtx) const
	Compute an integer that can be used to compare this pointer to another one.

Static Public Member Functions
static bool	hasSameBase (const Pointer &A, const Pointer &B)
	Checks if two pointers are comparable.
static bool	hasSameArray (const Pointer &A, const Pointer &B)
	Checks if two pointers can be subtracted.
static bool	pointToSameBlock (const Pointer &A, const Pointer &B)
	Checks if both given pointers point to the same block.
static std::optional< std::pair< Pointer, Pointer > >	computeSplitPoint (const Pointer &A, const Pointer &B)

Friends
class	Block
class	DeadBlock
class	MemberPointer
class	InterpState
struct	InitMap
class	DynamicAllocator
class	Program

Detailed Description

A pointer to a memory block, live or dead.

This object can be allocated into interpreter stack frames. If pointing to a live block, it is a link in the chain of pointers pointing to the block.

In the simplest form, a Pointer has a Block* (the pointee) and both Base and Offset are 0, which means it will point to raw data.

The Base field is used to access metadata about the data. For primitive arrays, the Base is followed by an InitMap. In a variety of cases, the Base is preceded by an InlineDescriptor, which is used to track the initialization state, among other things.

The Offset field is used to access the actual data. In other words, the data the pointer decribes can be found at Pointee->rawData() + Pointer.Offset.

/// Pointee                      Offset
/// │                              │
/// │                              │
/// ▼                              ▼
/// ┌───────┬────────────┬─────────┬────────────────────────────┐
/// │ Block │ InlineDesc │ InitMap │ Actual Data                │
/// └───────┴────────────┴─────────┴────────────────────────────┘
///                      ▲
///                      │
///                      │
///                     Base
/// 

Definition at line 92 of file Pointer.h.

Constructor & Destructor Documentation

Pointer() [1/10]

clang::interp::Pointer::Pointer ( )

inline

Definition at line 98 of file Pointer.h.

References Int, and clang::nullptr.

Referenced by activate(), atField(), atFieldSub(), atIndex(), compare(), computeOffsetForComparison(), computeSplitPoint(), expand(), getArray(), getBase(), getDeclPtr(), hasSameArray(), hasSameBase(), narrow(), operator!=(), operator=(), operator=(), operator==(), Pointer(), Pointer(), Pointer(), Pointer(), pointToSameBlock(), toAPValue(), and toRValue().

Pointer() [2/10]

clang::interp::Pointer::Pointer ( IntPointer && IntPtr )

inline

Definition at line 99 of file Pointer.h.

References Int.

Pointer() [3/10]

Pointer::Pointer

(

Block *

B

)

Definition at line 27 of file Pointer.cpp.

References Block, and Pointer().

Pointer() [4/10]

Pointer::Pointer	(	Block *	B,
		uint64_t	BaseAndOffset )

Definition at line 31 of file Pointer.cpp.

References Block, and Pointer().

Pointer() [5/10]

Pointer::Pointer

(

const Pointer &

P

)

Definition at line 44 of file Pointer.cpp.

References clang::interp::Block, BS, Fn, clang::interp::Fn, Int, clang::interp::Int, Pointer(), Typeid, and clang::interp::Typeid.

Pointer() [6/10]

Pointer::Pointer

(

Pointer &&

P

)

Definition at line 64 of file Pointer.cpp.

References clang::interp::Block, BS, Fn, clang::interp::Fn, Int, clang::interp::Int, Pointer(), Typeid, and clang::interp::Typeid.

Pointer() [7/10]

clang::interp::Pointer::Pointer ( uint64_t Address, const Descriptor * Desc, uint64_t Offset = 0 )

inline

Definition at line 105 of file Pointer.h.

References Int.

Pointer() [8/10]

clang::interp::Pointer::Pointer ( const Function * F, uint64_t Offset = 0 )

inline

Definition at line 107 of file Pointer.h.

References Fn.

Pointer() [9/10]

clang::interp::Pointer::Pointer ( const Type * TypePtr, const Type * TypeInfoType, uint64_t Offset = 0 )

inline

Definition at line 109 of file Pointer.h.

References Typeid.

Pointer() [10/10]

Pointer::Pointer	(	Block *	Pointee,
		unsigned	Base,
		uint64_t	Offset )

Definition at line 34 of file Pointer.cpp.

References Block, BS, clang::interp::Block::getDescriptor(), and clang::interp::Descriptor::getMetadataSize().

~Pointer()

Pointer::~Pointer

(

)

Definition at line 83 of file Pointer.cpp.

References Block, BS, and isBlockPointer().

Member Function Documentation

activate()

void Pointer::activate

(

)

const

Activats a field.

Definition at line 570 of file Pointer.cpp.

References activate(), atField(), BS, deactivate(), std::function, getBase(), getRecord(), inUnion(), clang::interp::InlineDescriptor::IsActive, isRoot(), clang::interp::Record::isUnion(), and Pointer().

Referenced by clang::interp::Activate(), activate(), clang::interp::ActivateThisField(), clang::interp::CheckNewTypeMismatch(), clang::interp::copyRecord(), clang::interp::FinishInitActivate(), clang::interp::FinishInitActivatePop(), clang::interp::FinishInitGlobal(), and clang::interp::InitBitFieldActivate().

allElementsInitialized()

bool Pointer::allElementsInitialized

(

)

const

Definition at line 553 of file Pointer.cpp.

References clang::interp::InitMapPtr::allInitialized(), block(), BS, clang::interp::Block::getBlockDesc(), getFieldDesc(), clang::interp::Initialized, clang::interp::GlobalInlineDescriptor::InitState, isArrayRoot(), isRoot(), and isStatic().

Referenced by clang::interp::CheckArrayInitialized().

asBlockPointer()

const BlockPointer & clang::interp::Pointer::asBlockPointer ( ) const

inlinenodiscard

Definition at line 457 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::DynamicAllocator::cleanup(), computeSplitPoint(), clang::interp::DeadBlock::DeadBlock(), hasSameBase(), isInitialized(), and clang::interp::OffsetHelper().

asFunctionPointer()

const FunctionPointer & clang::interp::Pointer::asFunctionPointer ( ) const

inlinenodiscard

Definition at line 465 of file Pointer.h.

References Fn, and isFunctionPointer().

Referenced by clang::interp::CallPtr(), clang::interp::OffsetHelper(), print(), toAPValue(), and toDiagnosticString().

asIntPointer()

const IntPointer & clang::interp::Pointer::asIntPointer ( ) const

inlinenodiscard

Definition at line 461 of file Pointer.h.

References Int, and isIntegralPointer().

Referenced by clang::interp::getField(), clang::interp::GetPtrBase(), clang::interp::GetPtrBasePop(), clang::interp::OffsetHelper(), toAPValue(), and toDiagnosticString().

asTypeidPointer()

const TypeidPointer & clang::interp::Pointer::asTypeidPointer ( ) const

inlinenodiscard

Definition at line 469 of file Pointer.h.

References isTypeidPointer(), and Typeid.

Referenced by computeOffsetForComparison(), and print().

atField()

Pointer clang::interp::Pointer::atField ( unsigned Off ) const

inlinenodiscard

Creates a pointer to a field.

Definition at line 174 of file Pointer.h.

References BS, isBlockPointer(), and Pointer().

Referenced by activate(), clang::interp::ActivateThisField(), clang::interp::CheckFieldsInitialized(), clang::interp::collectBlocks(), clang::interp::copyRecord(), clang::interp::endLifetimeRecurse(), enumerateData(), clang::interp::finishGlobalRecurse(), clang::interp::MemberPointer::getBase(), clang::interp::GetField(), clang::interp::getField(), clang::interp::GetFieldPop(), clang::interp::GetPtrBase(), clang::interp::GetPtrBasePop(), clang::interp::InitBitField(), clang::interp::InitBitFieldActivate(), clang::interp::InitField(), clang::interp::InitFieldActivate(), clang::interp::SetField(), clang::interp::SetThreeWayComparisonField(), clang::interp::startLifetimeRecurse(), clang::interp::MemberPointer::toPointer(), and clang::interp::zeroAll().

atFieldSub()

Pointer clang::interp::Pointer::atFieldSub ( unsigned Off ) const

inlinenodiscard

Subtract the given offset from the current Base and Offset of the pointer.

Definition at line 182 of file Pointer.h.

References BS, and Pointer().

Referenced by clang::interp::MemberPointer::getBase(), and clang::interp::GetPtrDerivedPop().

atIndex()

Pointer clang::interp::Pointer::atIndex ( uint64_t Idx ) const

inlinenodiscard

Offsets a pointer inside an array.

Definition at line 157 of file Pointer.h.

References BS, elemSize(), Fn, getDeclDesc(), getFieldDesc(), getSize(), Int, isFunctionPointer(), isIntegralPointer(), and Pointer().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), clang::interp::ArrayDecay(), clang::interp::ArrayElem(), clang::interp::ArrayElemPop(), clang::interp::CheckArrayInitialized(), clang::interp::collectBlocks(), clang::interp::CopyArray(), clang::interp::copyComposite(), clang::interp::endLifetimeRecurse(), enumerateData(), clang::interp::finishGlobalRecurse(), clang::interp::interp__builtin_elementwise_countzeroes(), clang::interp::interp__builtin_is_aligned_up_down(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_nan(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_strcmp(), clang::interp::interp__builtin_strlen(), clang::interp::OffsetHelper(), clang::interp::RunDestructors(), clang::interp::startLifetimeRecurse(), and clang::interp::zeroAll().

block()

const Block * clang::interp::Pointer::block ( ) const

inline

Definition at line 608 of file Pointer.h.

References Block, and BS.

Referenced by allElementsInitialized(), clang::interp::Call(), clang::interp::CallVirt(), clang::interp::CheckConst(), clang::interp::CheckDestructor(), clang::interp::CheckFinalLoad(), clang::interp::CheckLoad(), clang::interp::CheckMutable(), clang::interp::CheckNewTypeMismatch(), clang::interp::CheckStore(), clang::interp::CheckVolatile(), clang::interp::collectBlocks(), clang::interp::Program::dump(), clang::interp::Free(), clang::interp::getField(), clang::interp::interp__builtin_is_within_lifetime(), clang::interp::interp__builtin_operator_delete(), clang::interp::interp__builtin_strlen(), isElementInitialized(), isInitialized(), operator=(), pointsToLiteral(), pointsToStringLiteral(), pointToSameBlock(), toAPValue(), and clang::interp::MemberPointer::toPointer().

canBeInitialized()

bool clang::interp::Pointer::canBeInitialized ( ) const

inline

If this pointer has an InlineDescriptor we can use to initialize.

Definition at line 450 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::Activate(), clang::interp::ActivateThisField(), clang::interp::FinishInit(), clang::interp::FinishInitActivate(), clang::interp::FinishInitActivatePop(), clang::interp::FinishInitGlobal(), clang::interp::FinishInitPop(), and clang::interp::interp__builtin_overflowop().

compare()

ComparisonCategoryResult clang::interp::Pointer::compare ( const Pointer & Other ) const

inline

Compare two pointers.

Definition at line 755 of file Pointer.h.

References clang::Equal, clang::Greater, hasSameBase(), clang::Less, clang::Other, Pointer(), and clang::Unordered.

computeOffsetForComparison()

size_t Pointer::computeOffsetForComparison

(

const ASTContext &

ASTCtx

)

const

Compute an integer that can be used to compare this pointer to another one.

Compute an offset that can be used to compare the pointer to another one with the same base.

This is usually NOT the same as the pointer offset regarding the AST record layout.

To get accurate results, we basically have to compute the lvalue offset using the ASTRecordLayout.

FIXME: We're still mixing values from the record layout with our internal offsets, which will inevitably lead to cryptic errors.

Definition at line 371 of file Pointer.cpp.

References asTypeidPointer(), clang::interp::Block, elemSize(), expand(), Fn, clang::interp::Fn, getArray(), clang::ASTContext::getASTRecordLayout(), getBase(), clang::interp::Record::getDecl(), getDeclDesc(), getField(), clang::FieldDecl::getFieldIndex(), clang::ASTRecordLayout::getFieldOffset(), getIndex(), clang::interp::Record::getNumVirtualBases(), clang::CharUnits::getQuantity(), getRecord(), clang::interp::Descriptor::getType(), clang::ValueDecl::getType(), clang::ASTContext::getTypeSizeInChars(), Int, clang::interp::Int, isArrayElement(), isBaseClass(), isOnePastEnd(), isRoot(), isVirtualBaseClass(), clang::interp::InlineDescriptor::Offset, Pointer(), clang::Result, clang::ASTContext::toCharUnitsFromBits(), clang::interp::Typeid, and clang::interp::TypeidPointer::TypePtr.

Referenced by clang::interp::CmpHelperEQ< Pointer >().

computeSplitPoint()

std::optional< std::pair< Pointer, Pointer > > Pointer::computeSplitPoint ( const Pointer & A, const Pointer & B )

static

Definition at line 680 of file Pointer.cpp.

References asBlockPointer(), clang::interp::BlockPointer::Base, getBase(), isBlockPointer(), isRoot(), clang::interp::BlockPointer::Pointee, and Pointer().

Referenced by clang::interp::CmpHelper< Pointer >().

deactivate()

void Pointer::deactivate

(

)

const

Deactivates an entire strurcutre.

Definition at line 624 of file Pointer.cpp.

Referenced by activate().

deref()

template<typename T>

T & clang::interp::Pointer::deref ( ) const

inline

Dereferences the pointer, if it's live.

Definition at line 669 of file Pointer.h.

References BS, isArrayRoot(), isBlockPointer(), isDereferencable(), isLive(), and clang::T.

Referenced by clang::interp::assignInteger(), clang::interp::collectBlocks(), clang::interp::copyComposite(), clang::interp::copyPrimitiveMemory(), clang::interp::copyPrimitiveMemory(), clang::interp::copyRecord(), clang::interp::DoBitCastPtr(), clang::interp::finishGlobalRecurse(), clang::interp::IncDecFloatHelper(), clang::interp::IncDecHelper(), clang::interp::IncDecPtrHelper(), clang::interp::InitField(), clang::interp::InitFieldActivate(), clang::interp::InitGlobal(), clang::interp::InitGlobalTemp(), clang::interp::interp__builtin_elementwise_countzeroes(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_nan(), clang::interp::interp__builtin_strcmp(), clang::interp::interp__builtin_strlen(), clang::interp::Load(), clang::interp::LoadPop(), clang::interp::readPointerToBuffer(), clang::interp::InterpFrame::setParam(), clang::interp::SetThreeWayComparisonField(), clang::interp::StoreActivate(), clang::interp::StoreActivatePop(), clang::interp::StoreBitFieldActivate(), clang::interp::StoreBitFieldActivatePop(), and toRValue().

elem()

template<typename T>

T & clang::interp::Pointer::elem ( unsigned I ) const

inline

Dereferences the element at index I.

This is equivalent to atIndex(I).deref<T>().

Definition at line 685 of file Pointer.h.

References BS, clang::interp::Descriptor::getElemSize(), getFieldDesc(), getNumElems(), isBlockPointer(), isDereferencable(), isLive(), and clang::T.

Referenced by clang::interp::ArrayElem(), clang::interp::ArrayElemPop(), clang::interp::collectBlocks(), clang::interp::convertBoolVectorToInt(), clang::interp::CopyArray(), clang::interp::copyComposite(), clang::interp::Program::createGlobalString(), clang::interp::Divc(), clang::interp::Context::evaluateString(), clang::interp::Context::evaluateStrlen(), clang::interp::interp__builtin_elementwise_abs(), clang::interp::interp__builtin_elementwise_int_binop(), clang::interp::interp__builtin_elementwise_int_unaryop(), clang::interp::interp__builtin_elementwise_maxmin(), clang::interp::interp__builtin_elementwise_triop(), clang::interp::interp__builtin_elementwise_triop_fp(), clang::interp::interp__builtin_ia32_addsub(), clang::interp::interp__builtin_ia32_cmp_mask(), clang::interp::interp__builtin_ia32_cvt_mask2vec(), clang::interp::interp__builtin_ia32_cvt_vec2mask(), clang::interp::interp__builtin_ia32_cvtpd2ps(), clang::interp::interp__builtin_ia32_cvtsd2ss(), clang::interp::interp__builtin_ia32_gfni_mul(), clang::interp::interp__builtin_ia32_multishiftqb(), clang::interp::interp__builtin_ia32_pclmulqdq(), clang::interp::interp__builtin_ia32_pmul(), clang::interp::interp__builtin_ia32_shift_with_count(), clang::interp::interp__builtin_ia32_shufbitqmb_mask(), clang::interp::interp__builtin_ia32_shuffle_generic(), clang::interp::interp__builtin_ia32_test_op(), clang::interp::interp__builtin_ia32_vcvtps2ph(), clang::interp::interp__builtin_ia32_vpconflict(), clang::interp::interp__builtin_select(), clang::interp::interp__builtin_select_scalar(), clang::interp::interp__builtin_vec_ext(), clang::interp::interp__builtin_vec_set(), clang::interp::interp__builtin_vector_reduce(), clang::interp::interp__builtin_x86_extract_vector(), clang::interp::interp__builtin_x86_extract_vector_masked(), clang::interp::interp__builtin_x86_insert_subvector(), clang::interp::interp__builtin_x86_pack(), clang::interp::interp_builtin_horizontal_fp_binop(), clang::interp::interp_builtin_horizontal_int_binop(), clang::interp::interp_builtin_ia32_gfni_affine(), and clang::interp::Mulc().

elemSize()

size_t clang::interp::Pointer::elemSize ( ) const

inline

Returns the element size of the innermost field.

Definition at line 364 of file Pointer.h.

References BS, getDeclDesc(), clang::interp::Descriptor::getElemSize(), getFieldDesc(), clang::interp::Descriptor::getSize(), Int, and isIntegralPointer().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), atIndex(), computeOffsetForComparison(), clang::interp::Context::evaluateString(), clang::interp::Context::evaluateStrlen(), getIndex(), getIntegerRepresentation(), getNumElems(), clang::interp::interp__builtin_memcpy(), and clang::interp::OffsetHelper().

endLifetime()

void clang::interp::Pointer::endLifetime ( ) const

inline

Definition at line 738 of file Pointer.h.

References BS, clang::interp::Ended, and isBlockPointer().

Referenced by clang::interp::endLifetimeRecurse().

expand()

Pointer clang::interp::Pointer::expand ( ) const

inlinenodiscard

Expands a pointer to the containing array, undoing narrowing.

Definition at line 224 of file Pointer.h.

References Block, BS, getDeclDesc(), clang::interp::Block::getDescriptor(), getSize(), inPrimitiveArray(), clang::interp::Descriptor::IsArray, isBlockPointer(), isElementPastEnd(), isRoot(), Next, and Pointer().

Referenced by computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::ExpandPtr(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_object_size(), clang::interp::pointsToLastObject(), and toAPValue().

getArray()

Pointer clang::interp::Pointer::getArray ( ) const

inlinenodiscard

Returns the parent array.

Definition at line 321 of file Pointer.h.

References BS, and Pointer().

Referenced by computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::pointsToLastObject(), and toAPValue().

getBase()

Pointer clang::interp::Pointer::getBase ( ) const

inlinenodiscard

Returns a pointer to the object of which this pointer is a field.

Definition at line 312 of file Pointer.h.

References BS, and Pointer().

Referenced by activate(), clang::interp::CallVirt(), clang::interp::CheckActive(), clang::interp::CheckNewTypeMismatch(), clang::interp::CheckVolatile(), computeOffsetForComparison(), clang::interp::computePointerOffset(), computeSplitPoint(), clang::interp::Free(), clang::interp::GetDynamicDecl(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_object_size(), clang::interp::pointsToLastObject(), and toAPValue().

getByteOffset()

uint64_t clang::interp::Pointer::getByteOffset ( ) const

inline

Returns the byte offset from the start.

Definition at line 591 of file Pointer.h.

References Int, isIntegralPointer(), isOnePastEnd(), isTypeidPointer(), and Typeid.

Referenced by clang::interp::CheckDowncast(), clang::interp::CmpHelper< Pointer >(), clang::interp::getField(), and clang::interp::OffsetHelper().

getDeclDesc()

const Descriptor * clang::interp::Pointer::getDeclDesc ( ) const

inline

Accessor for information about the declaration site.

Definition at line 287 of file Pointer.h.

References BS, Int, isBlockPointer(), isFunctionPointer(), isIntegralPointer(), and isTypeidPointer().

Referenced by atIndex(), clang::interp::CheckBCPResult(), clang::interp::CheckConstant(), clang::interp::CheckDowncast(), clang::interp::CheckExtern(), clang::interp::CheckFieldsInitialized(), clang::interp::CheckLiteralType(), computeOffsetForComparison(), clang::interp::Destroy(), clang::interp::DiagnoseUninitialized(), elemSize(), expand(), clang::interp::Free(), getDeclLoc(), clang::interp::GetDynamicDecl(), getFieldDesc(), clang::interp::GetPtrDerivedPop(), getSource(), clang::interp::InitGlobalTemp(), clang::interp::InitGlobalTempComp(), clang::interp::interp__builtin_assume_aligned(), clang::interp::interp__builtin_is_aligned_up_down(), clang::interp::interp__builtin_is_within_lifetime(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_operator_delete(), isConst(), clang::interp::isConstexprUnknown(), isVolatile(), and toAPValue().

getDeclID()

UnsignedOrNone clang::interp::Pointer::getDeclID ( ) const

inline

Returns the declaration ID.

Definition at line 582 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::CheckConstant(), and CheckGlobal().

getDeclLoc()

SourceLocation clang::interp::Pointer::getDeclLoc ( ) const

inline

Definition at line 297 of file Pointer.h.

References getDeclDesc(), and clang::interp::Descriptor::getLocation().

Referenced by clang::interp::CheckDeleteSource(), and clang::interp::CheckLive().

getDeclPtr()

Pointer clang::interp::Pointer::getDeclPtr ( ) const

inlinenodiscard

Definition at line 361 of file Pointer.h.

References BS, and Pointer().

Referenced by clang::interp::CheckDowncast(), and toAPValue().

getElemRecord()

const Record * clang::interp::Pointer::getElemRecord ( ) const

inline

Returns the element record type, if this is a non-primive array.

Definition at line 482 of file Pointer.h.

References clang::interp::Descriptor::ElemDesc, clang::interp::Descriptor::ElemRecord, and getFieldDesc().

Referenced by clang::interp::CheckArrayInitialized().

getField()

const FieldDecl * clang::interp::Pointer::getField ( ) const

inline

Returns the field information.

Definition at line 487 of file Pointer.h.

References getFieldDesc().

Referenced by clang::interp::CheckArrayInitialized(), clang::interp::CheckMutable(), clang::interp::CheckVolatile(), computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::DoBitCastPtr(), and clang::interp::pointsToLastObject().

getFieldDesc()

const Descriptor * clang::interp::Pointer::getFieldDesc ( ) const

inline

Accessors for information about the innermost field.

Definition at line 331 of file Pointer.h.

References getDeclDesc(), Int, isIntegralPointer(), and isRoot().

Referenced by allElementsInitialized(), clang::interp::ArrayElem(), clang::interp::ArrayElemPop(), atIndex(), clang::interp::CallVirt(), clang::interp::checkConstructor(), clang::interp::CheckNewTypeMismatch(), clang::interp::CheckVolatile(), clang::interp::CmpHelperEQ< Pointer >(), clang::interp::collectBlocks(), clang::interp::computePointerOffset(), clang::interp::convertBoolVectorToInt(), clang::interp::copyComposite(), clang::interp::copyRecord(), clang::interp::DoBitCast(), clang::interp::DoBitCastPtr(), elem(), elemSize(), clang::interp::endLifetimeRecurse(), enumerateData(), clang::interp::Context::evaluateString(), clang::interp::Context::evaluateStrlen(), clang::interp::finishGlobalRecurse(), getElemRecord(), clang::interp::getElemType(), clang::interp::getField(), getField(), getOffset(), getRecord(), getSize(), getType(), hasSameArray(), inArray(), initialize(), initializeAllElements(), initializeElement(), inPrimitiveArray(), clang::interp::interp__builtin_elementwise_abs(), clang::interp::interp__builtin_elementwise_countzeroes(), clang::interp::interp__builtin_elementwise_int_unaryop(), clang::interp::interp__builtin_ia32_cvt_mask2vec(), clang::interp::interp__builtin_ia32_cvt_vec2mask(), clang::interp::interp__builtin_ia32_vcvtps2ph(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_nan(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_operator_delete(), clang::interp::interp__builtin_select(), clang::interp::interp__builtin_strcmp(), clang::interp::interp__builtin_strlen(), clang::interp::interp__builtin_vec_ext(), clang::interp::interp__builtin_vector_reduce(), clang::interp::interp__builtin_x86_extract_vector(), clang::interp::interp__builtin_x86_extract_vector_masked(), clang::interp::interp__builtin_x86_insert_subvector(), isElementInitialized(), isField(), isInitialized(), isUnknownSizeArray(), clang::interp::isUserWritingOffTheEnd(), isZeroSizeArray(), clang::interp::Load(), clang::interp::LoadPop(), clang::interp::OffsetHelper(), clang::interp::operator<<(), clang::interp::startLifetimeRecurse(), toAPValue(), toRValue(), and clang::interp::zeroAll().

getIndex()

int64_t clang::interp::Pointer::getIndex ( ) const

inline

Returns the index into an array.

Definition at line 618 of file Pointer.h.

References BS, elemSize(), getIntegerRepresentation(), getOffset(), isBlockPointer(), and isZero().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), clang::interp::CheckBCPResult(), computeOffsetForComparison(), clang::interp::computePointerOffset(), enumerateData(), clang::interp::Context::evaluateString(), clang::interp::Context::evaluateStrlen(), clang::interp::Free(), initialize(), clang::interp::interp__builtin_is_aligned_up_down(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_strcmp(), clang::interp::interp__builtin_strlen(), isInitialized(), clang::interp::OffsetHelper(), clang::interp::SubPtr(), and toAPValue().

getIntegerRepresentation()

uint64_t clang::interp::Pointer::getIntegerRepresentation ( ) const

inline

Definition at line 144 of file Pointer.h.

References BS, elemSize(), Fn, Int, isFunctionPointer(), and isIntegralPointer().

Referenced by clang::interp::CastPointerIntegral(), clang::interp::CastPointerIntegralAP(), clang::interp::CastPointerIntegralAPS(), clang::interp::CmpHelperEQ< Pointer >(), getIndex(), clang::interp::interp__builtin_atomic_lock_free(), clang::interp::interp__builtin_memcpy(), clang::interp::OffsetHelper(), and clang::interp::SubPtr().

getLifetime()

Lifetime clang::interp::Pointer::getLifetime ( ) const

inline

Definition at line 730 of file Pointer.h.

References BS, isBlockPointer(), and clang::interp::Started.

Referenced by clang::interp::CheckFinalLoad(), clang::interp::CheckLoad(), clang::interp::CheckStore(), clang::interp::Destroy(), clang::interp::endLifetimeRecurse(), clang::interp::interp__builtin_is_within_lifetime(), and clang::interp::startLifetimeRecurse().

getNumElems()

unsigned clang::interp::Pointer::getNumElems ( ) const

inline

Returns the number of elements.

Definition at line 602 of file Pointer.h.

References elemSize(), getSize(), and isBlockPointer().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), clang::interp::computePointerOffset(), clang::interp::convertBoolVectorToInt(), elem(), clang::interp::Context::evaluateString(), clang::interp::Context::evaluateStrlen(), initializeElement(), clang::interp::interp__builtin_elementwise_abs(), clang::interp::interp__builtin_elementwise_countzeroes(), clang::interp::interp__builtin_elementwise_int_unaryop(), clang::interp::interp__builtin_ia32_cmp_mask(), clang::interp::interp__builtin_ia32_cvt_mask2vec(), clang::interp::interp__builtin_ia32_cvt_vec2mask(), clang::interp::interp__builtin_ia32_cvtpd2ps(), clang::interp::interp__builtin_ia32_gfni_mul(), clang::interp::interp__builtin_ia32_movmsk_op(), clang::interp::interp__builtin_ia32_phminposuw(), clang::interp::interp__builtin_ia32_pternlog(), clang::interp::interp__builtin_ia32_test_op(), clang::interp::interp__builtin_memcmp(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_nan(), clang::interp::interp__builtin_select(), clang::interp::interp__builtin_vec_ext(), clang::interp::interp__builtin_vector_reduce(), clang::interp::interp__builtin_x86_extract_vector(), clang::interp::interp__builtin_x86_extract_vector_masked(), clang::interp::interp__builtin_x86_insert_subvector(), clang::interp::OffsetHelper(), clang::interp::SubPtr(), and toAPValue().

getOffset()

unsigned clang::interp::Pointer::getOffset ( ) const

inline

Returns the offset into an array.

Definition at line 382 of file Pointer.h.

References BS, getFieldDesc(), and isBlockPointer().

Referenced by clang::interp::CmpHelperEQ< Pointer >(), getIndex(), and isOnePastEnd().

getRawAddress()

const std::byte * clang::interp::Pointer::getRawAddress ( ) const

inline

If backed by actual data (i.e.

a block pointer), return an address to that data.

Definition at line 612 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), clang::interp::Context::evaluateString(), and clang::interp::Context::evaluateStrlen().

getRecord()

const Record * clang::interp::Pointer::getRecord ( ) const

inline

Returns the record descriptor of a class.

Definition at line 480 of file Pointer.h.

References clang::interp::Descriptor::ElemRecord, and getFieldDesc().

Referenced by activate(), clang::interp::CheckActive(), clang::interp::CheckFieldsInitialized(), clang::interp::EvaluationResult::checkFullyInitialized(), clang::interp::CheckNewTypeMismatch(), computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::endLifetimeRecurse(), clang::interp::finishGlobalRecurse(), clang::interp::GetPtrDerivedPop(), clang::interp::pointsToLastObject(), clang::interp::SetThreeWayComparisonField(), clang::interp::startLifetimeRecurse(), toAPValue(), and clang::interp::MemberPointer::toPointer().

getSize()

size_t clang::interp::Pointer::getSize ( ) const

inline

Returns the total size of the innermost field.

Definition at line 376 of file Pointer.h.

References getFieldDesc(), clang::interp::Descriptor::getSize(), and isBlockPointer().

Referenced by atIndex(), expand(), getNumElems(), and isOnePastEnd().

getSource()

DeclTy clang::interp::Pointer::getSource ( ) const

inline

Returns the expression or declaration the pointer has been created for.

Definition at line 300 of file Pointer.h.

References Fn, clang::interp::Function::getDecl(), getDeclDesc(), clang::interp::Descriptor::getSource(), Int, isBlockPointer(), isFunctionPointer(), and isIntegralPointer().

getType()

QualType clang::interp::Pointer::getType ( ) const

inline

Returns the type of the innermost field.

Definition at line 341 of file Pointer.h.

References BS, Fn, clang::interp::Descriptor::getDataElemType(), getFieldDesc(), getType(), inPrimitiveArray(), isFunctionPointer(), isTypeidPointer(), and Typeid.

Referenced by clang::interp::CheckBCPResult(), clang::interp::CheckConst(), clang::interp::CheckDowncast(), clang::interp::EvaluationResult::checkFullyInitialized(), clang::interp::EvaluationResult::checkReturnValue(), clang::interp::CheckVolatile(), clang::interp::DoBitCastPtr(), clang::interp::Free(), clang::interp::GetDynamicDecl(), getType(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcmp(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_object_size(), clang::interp::SetThreeWayComparisonField(), clang::interp::SubPtr(), toAPValue(), and toDiagnosticString().

hasSameArray()

bool Pointer::hasSameArray ( const Pointer & A, const Pointer & B )

static

Checks if two pointers can be subtracted.

Definition at line 652 of file Pointer.cpp.

References clang::interp::BlockPointer::Base, BS, getFieldDesc(), hasSameBase(), clang::interp::Descriptor::IsArray, and Pointer().

hasSameBase()

bool Pointer::hasSameBase ( const Pointer & A, const Pointer & B )

static

Checks if two pointers are comparable.

Definition at line 628 of file Pointer.cpp.

References asBlockPointer(), isFunctionPointer(), isIntegralPointer(), isTypeidPointer(), isZero(), clang::interp::BlockPointer::Pointee, and Pointer().

Referenced by clang::interp::CmpHelper< Pointer >(), clang::interp::CmpHelperEQ< Pointer >(), compare(), hasSameArray(), and clang::interp::SubPtr().

inArray()

bool clang::interp::Pointer::inArray ( ) const

inline

Checks if the innermost field is an array.

Definition at line 403 of file Pointer.h.

References getFieldDesc(), clang::interp::Descriptor::IsArray, and isBlockPointer().

Referenced by clang::interp::interp__builtin_object_size(), isArrayElement(), isArrayRoot(), narrow(), and clang::interp::OffsetHelper().

initialize()

void Pointer::initialize

(

)

const

Initializes a field.

Definition at line 498 of file Pointer.cpp.

References BS, getFieldDesc(), getIndex(), clang::interp::Descriptor::getNumElems(), clang::interp::Initialized, initializeElement(), clang::interp::GlobalInlineDescriptor::InitState, isBlockPointer(), clang::interp::Descriptor::isPrimitiveArray(), and isRoot().

Referenced by clang::interp::copyComposite(), clang::interp::copyRecord(), clang::interp::DoBitCastPtr(), enumerateData(), clang::interp::FinishInit(), clang::interp::FinishInitActivate(), clang::interp::FinishInitActivatePop(), clang::interp::FinishInitGlobal(), clang::interp::FinishInitPop(), clang::interp::Init(), clang::interp::InitBitField(), clang::interp::InitGlobal(), clang::interp::InitGlobalTemp(), clang::interp::InitPop(), clang::interp::interp__builtin_carryop(), clang::interp::interp__builtin_elementwise_countzeroes(), clang::interp::interp__builtin_overflowop(), clang::interp::SetField(), clang::interp::SetThreeWayComparisonField(), clang::interp::Store(), clang::interp::StoreBitField(), clang::interp::StoreBitFieldPop(), and clang::interp::StorePop().

initializeAllElements()

void Pointer::initializeAllElements

(

)

const

Initialize all elements of a primitive array at once.

This can be used in situations where we know we have initialized all elements of a primtive array.

Definition at line 546 of file Pointer.cpp.

References getFieldDesc(), and isArrayRoot().

Referenced by clang::interp::Program::createGlobalString(), clang::interp::interp__builtin_elementwise_abs(), clang::interp::interp__builtin_elementwise_int_binop(), clang::interp::interp__builtin_elementwise_int_unaryop(), clang::interp::interp__builtin_elementwise_triop(), clang::interp::interp__builtin_elementwise_triop_fp(), clang::interp::interp__builtin_ia32_cvt_mask2vec(), clang::interp::interp__builtin_ia32_cvtpd2ps(), clang::interp::interp__builtin_ia32_cvtsd2ss(), clang::interp::interp__builtin_ia32_multishiftqb(), clang::interp::interp__builtin_ia32_shift_with_count(), clang::interp::interp__builtin_ia32_shuffle_generic(), clang::interp::interp__builtin_ia32_vpconflict(), clang::interp::interp__builtin_select(), clang::interp::interp__builtin_select_scalar(), clang::interp::interp__builtin_vec_set(), clang::interp::interp__builtin_x86_extract_vector(), clang::interp::interp__builtin_x86_extract_vector_masked(), and clang::interp::interp__builtin_x86_insert_subvector().

initializeElement()

void Pointer::initializeElement

(

unsigned

Index

)

const

Initialized the given element of a primitive array.

Definition at line 524 of file Pointer.cpp.

References clang::interp::InitMapPtr::allInitialized(), BS, getFieldDesc(), clang::interp::Descriptor::getNumElems(), getNumElems(), clang::interp::InitMapPtr::hasInitMap(), InitMap, isStatic(), clang::interp::InitMapPtr::noteAllInitialized(), and clang::interp::InitMapPtr::setInitMap().

Referenced by clang::interp::CopyArray(), and initialize().

inPrimitiveArray()

bool clang::interp::Pointer::inPrimitiveArray ( ) const

inline

Checks if the structure is a primitive array.

Definition at line 415 of file Pointer.h.

References getFieldDesc(), isBlockPointer(), and clang::interp::Descriptor::isPrimitiveArray().

Referenced by expand(), getType(), and narrow().

inUnion()

bool clang::interp::Pointer::inUnion ( ) const

inline

Definition at line 408 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by activate(), clang::interp::CheckActive(), and clang::interp::CheckNewTypeMismatch().

isActive()

bool clang::interp::Pointer::isActive ( ) const

inline

Checks if the object is active.

Definition at line 542 of file Pointer.h.

References isBlockPointer(), and isRoot().

Referenced by clang::interp::CheckActive(), clang::interp::CheckFieldsInitialized(), clang::interp::CheckNewTypeMismatch(), clang::interp::copyRecord(), clang::interp::interp__builtin_is_within_lifetime(), and toRValue().

isArrayElement()

bool clang::interp::Pointer::isArrayElement ( ) const

inline

Checks if the pointer points to an array.

Definition at line 427 of file Pointer.h.

References clang::interp::BlockPointer::Base, BS, inArray(), and isBlockPointer().

Referenced by clang::interp::EvaluationResult::checkReturnValue(), computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::Free(), clang::interp::pointsToLastObject(), and toAPValue().

isArrayRoot()

bool clang::interp::Pointer::isArrayRoot ( ) const

inline

Whether this array refers to an array, but not to the first element.

Definition at line 400 of file Pointer.h.

References BS, and inArray().

Referenced by allElementsInitialized(), deref(), initializeAllElements(), and toAPValue().

isBaseClass()

bool clang::interp::Pointer::isBaseClass ( ) const

inline

Checks if a structure is a base class.

Definition at line 548 of file Pointer.h.

References isField().

Referenced by clang::interp::CallVirt(), computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::Free(), clang::interp::GetDynamicDecl(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_object_size(), and clang::interp::pointsToLastObject().

isBlockPointer()

bool clang::interp::Pointer::isBlockPointer ( ) const

inline

Definition at line 474 of file Pointer.h.

References clang::interp::Block.

Referenced by asBlockPointer(), atField(), canBeInitialized(), clang::interp::CheckConst(), clang::interp::CheckConstant(), clang::interp::CheckFinalLoad(), clang::interp::EvaluationResult::checkFullyInitialized(), clang::interp::CheckLoad(), clang::interp::CheckNewTypeMismatch(), clang::interp::CheckPointerToIntegralCast(), clang::interp::CheckStore(), computeSplitPoint(), deref(), clang::interp::DoBitCast(), clang::interp::DoBitCastPtr(), clang::interp::DoMemcpy(), elem(), endLifetime(), expand(), clang::interp::ExpandPtr(), getDeclDesc(), getDeclID(), clang::interp::getField(), getIndex(), getLifetime(), getNumElems(), getOffset(), clang::interp::GetPtrBase(), clang::interp::GetPtrBasePop(), clang::interp::GetPtrDerivedPop(), getRawAddress(), getSize(), getSource(), inArray(), initialize(), inPrimitiveArray(), clang::interp::interp__builtin_assume_aligned(), clang::interp::interp__builtin_carryop(), clang::interp::interp__builtin_is_aligned_up_down(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcmp(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_overflowop(), clang::interp::interp__builtin_strcmp(), inUnion(), isActive(), isArrayElement(), clang::interp::isConstexprUnknown(), isConstInMutable(), isDereferencable(), isDummy(), isDynamic(), isElementInitialized(), isExtern(), isField(), isInitialized(), isLive(), isMutable(), isOnePastEnd(), clang::interp::isReadable(), isRoot(), isStatic(), isTemporary(), isUnknownSizeArray(), isVolatile(), isWeak(), clang::interp::Load(), clang::interp::LoadPop(), narrow(), clang::interp::OffsetHelper(), operator=(), operator=(), operator==(), pointsToLiteral(), pointsToStringLiteral(), pointToSameBlock(), startLifetime(), clang::interp::SubPtr(), and ~Pointer().

isConst()

bool clang::interp::Pointer::isConst ( ) const

inline

Checks if an object or a subfield is mutable.

Definition at line 563 of file Pointer.h.

References getDeclDesc(), clang::interp::Descriptor::IsConst, isIntegralPointer(), and isRoot().

Referenced by clang::interp::CheckConst(), clang::interp::CheckExtern(), clang::interp::CheckLoad(), clang::interp::Context::evaluateString(), and clang::interp::GetDynamicDecl().

isConstInMutable()

bool clang::interp::Pointer::isConstInMutable ( ) const

inline

Definition at line 568 of file Pointer.h.

References false, isBlockPointer(), and isRoot().

Referenced by clang::interp::CheckConst().

isDereferencable()

bool clang::interp::Pointer::isDereferencable ( ) const

inline

Whether this block can be read from at all.

This is only true for block pointers that point to a valid location inside that block.

Definition at line 703 of file Pointer.h.

References isBlockPointer(), and isPastEnd().

Referenced by deref(), and elem().

isDummy()

bool clang::interp::Pointer::isDummy ( ) const

inline

Checks if the pointer points to a dummy value.

Definition at line 553 of file Pointer.h.

References Block, BS, and isBlockPointer().

Referenced by clang::interp::Call(), clang::interp::CheckBCPResult(), clang::interp::CheckInvoke(), clang::interp::CheckPointerToIntegralCast(), clang::interp::CopyArray(), clang::interp::Context::evaluateStrlen(), clang::interp::IncDecHelper(), clang::interp::IncDecPtrHelper(), clang::interp::interp__builtin_carryop(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcmp(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_overflowop(), clang::interp::interp__builtin_strcmp(), clang::interp::isConstexprUnknown(), clang::interp::isReadable(), clang::interp::isUserWritingOffTheEnd(), and toRValue().

isDynamic()

bool clang::interp::Pointer::isDynamic ( ) const

inline

Checks if the storage has been dynamically allocated.

Definition at line 515 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::CheckLive(), pointsToLiteral(), pointsToStringLiteral(), and toAPValue().

isElementInitialized()

bool Pointer::isElementInitialized

(

unsigned

Index

)

const

Like isInitialized(), but for primitive arrays.

Definition at line 469 of file Pointer.cpp.

References clang::interp::InitMapPtr::allInitialized(), block(), BS, clang::interp::Block::getBlockDesc(), getFieldDesc(), clang::interp::InitMapPtr::hasInitMap(), clang::interp::Initialized, clang::interp::GlobalInlineDescriptor::InitState, isBlockPointer(), isInitialized(), clang::interp::Descriptor::isPrimitiveArray(), isRoot(), and isStatic().

Referenced by clang::interp::CheckArrayInitialized(), and isInitialized().

isElementPastEnd()

bool clang::interp::Pointer::isElementPastEnd ( ) const

inline

Checks if the pointer is an out-of-bounds element pointer.

Definition at line 657 of file Pointer.h.

Referenced by clang::interp::CheckRange(), expand(), print(), and clang::interp::SubPtr().

isExtern()

bool clang::interp::Pointer::isExtern ( ) const

inline

Checks if the storage is extern.

Definition at line 494 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::CheckExtern(), and clang::interp::DiagnoseUninitialized().

isField()

bool clang::interp::Pointer::isField ( ) const

inline

Checks if the item is a field in an object.

Definition at line 279 of file Pointer.h.

References clang::interp::Descriptor::asDecl(), getFieldDesc(), isBlockPointer(), and isRoot().

Referenced by clang::interp::CheckLive(), clang::interp::CheckLoad(), clang::interp::computePointerOffset(), isBaseClass(), isVirtualBaseClass(), and toAPValue().

isFunctionPointer()

bool clang::interp::Pointer::isFunctionPointer ( ) const

inline

Definition at line 476 of file Pointer.h.

References clang::interp::Fn.

Referenced by asFunctionPointer(), atIndex(), clang::interp::CallPtr(), clang::interp::CheckBCPResult(), clang::interp::CheckPointerToIntegralCast(), clang::interp::CmpHelper< Pointer >(), clang::interp::CmpHelperEQ< Pointer >(), getDeclDesc(), getIntegerRepresentation(), getSource(), getType(), hasSameBase(), isWeak(), isZeroSizeArray(), clang::interp::OffsetHelper(), operator==(), toAPValue(), and toDiagnosticString().

isInitialized()

bool Pointer::isInitialized

(

)

const

Checks if an object was initialized.

Definition at line 447 of file Pointer.cpp.

References asBlockPointer(), block(), BS, clang::interp::Block::getBlockDesc(), getFieldDesc(), getIndex(), clang::interp::Initialized, clang::interp::GlobalInlineDescriptor::InitState, isBlockPointer(), isElementInitialized(), clang::interp::Descriptor::isPrimitiveArray(), and isRoot().

Referenced by clang::interp::CheckExtern(), clang::interp::CheckFieldsInitialized(), clang::interp::CheckFinalLoad(), clang::interp::CheckLoad(), clang::interp::copyRecord(), clang::interp::DecPtr(), clang::interp::DiagnoseUninitialized(), clang::interp::Program::dump(), clang::interp::IncPtr(), isElementInitialized(), clang::interp::Program::isGlobalInitialized(), and clang::interp::readPointerToBuffer().

isIntegralPointer()

bool clang::interp::Pointer::isIntegralPointer ( ) const

inline

Definition at line 475 of file Pointer.h.

References clang::interp::Int.

Referenced by asIntPointer(), atIndex(), clang::interp::CheckBCPResult(), elemSize(), getByteOffset(), getDeclDesc(), clang::interp::getField(), getFieldDesc(), getIntegerRepresentation(), clang::interp::GetPtrBase(), clang::interp::GetPtrBasePop(), getSource(), hasSameBase(), clang::interp::interp__builtin_atomic_lock_free(), clang::interp::interp__builtin_memcpy(), isConst(), isPastEnd(), clang::interp::OffsetHelper(), operator==(), toAPValue(), toDiagnosticString(), and toRValue().

isLive()

bool clang::interp::Pointer::isLive ( ) const

inline

Checks if the pointer is live.

Definition at line 273 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::CheckConst(), clang::interp::EvaluationResult::checkFullyInitialized(), clang::interp::CheckLive(), clang::interp::CheckMutable(), clang::interp::CheckVolatile(), clang::interp::copyComposite(), deref(), clang::interp::DiagnoseUninitialized(), clang::interp::DoBitCast(), clang::interp::DoBitCastPtr(), elem(), clang::interp::isReadable(), and toRValue().

isMutable()

bool clang::interp::Pointer::isMutable ( ) const

inline

Checks if the field is mutable.

Definition at line 526 of file Pointer.h.

References isBlockPointer(), and isRoot().

Referenced by clang::interp::CheckConst(), and clang::interp::CheckMutable().

isOnePastEnd()

bool clang::interp::Pointer::isOnePastEnd ( ) const

inline

Checks if the index is one past end.

Definition at line 635 of file Pointer.h.

References BS, getOffset(), getSize(), isBlockPointer(), isPastEnd(), and isUnknownSizeArray().

Referenced by clang::interp::arePotentiallyOverlappingStringLiterals(), clang::interp::CheckRange(), clang::interp::CheckSubobject(), clang::interp::CmpHelperEQ< Pointer >(), computeOffsetForComparison(), clang::interp::computePointerOffset(), clang::interp::Free(), getByteOffset(), clang::interp::interp__builtin_is_within_lifetime(), clang::interp::isReadable(), narrow(), clang::interp::OffsetHelper(), and toAPValue().

isPastEnd()

bool clang::interp::Pointer::isPastEnd ( ) const

inline

Checks if the pointer points past the end of the object.

Definition at line 649 of file Pointer.h.

References BS, isIntegralPointer(), and isZero().

Referenced by clang::interp::CheckExtern(), clang::interp::Context::evaluateStrlen(), isDereferencable(), isOnePastEnd(), and toRValue().

isRoot()

bool clang::interp::Pointer::isRoot ( ) const

inline

Pointer points directly to a block.

Definition at line 443 of file Pointer.h.

References BS, isBlockPointer(), and isZero().

Referenced by activate(), allElementsInitialized(), clang::interp::ArrayDecay(), clang::interp::CheckActive(), clang::interp::EvaluationResult::checkReturnValue(), clang::interp::CheckVolatile(), computeOffsetForComparison(), computeSplitPoint(), expand(), clang::interp::Free(), getFieldDesc(), initialize(), isActive(), isConst(), isConstInMutable(), isElementInitialized(), isField(), isInitialized(), isMutable(), isVolatile(), clang::interp::pointsToLastObject(), and print().

isStatic()

bool clang::interp::Pointer::isStatic ( ) const

inline

Checks if the storage is static.

Definition at line 500 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by allElementsInitialized(), clang::interp::CheckConstant(), CheckGlobal(), clang::interp::GetDynamicDecl(), initializeElement(), isElementInitialized(), and isStaticTemporary().

isStaticTemporary()

bool clang::interp::Pointer::isStaticTemporary ( ) const

inline

Checks if the storage is a static temporary.

Definition at line 523 of file Pointer.h.

References isStatic(), and isTemporary().

isTemporary()

bool clang::interp::Pointer::isTemporary ( ) const

inline

Checks if the storage is temporary.

Definition at line 507 of file Pointer.h.

References BS, and isBlockPointer().

Referenced by clang::interp::CheckDeleteSource(), clang::interp::CheckLive(), and isStaticTemporary().

isTypeidPointer()

bool clang::interp::Pointer::isTypeidPointer ( ) const

inline

Definition at line 477 of file Pointer.h.

References clang::interp::Typeid.

Referenced by asTypeidPointer(), clang::interp::CheckBCPResult(), clang::interp::CmpHelper< Pointer >(), getByteOffset(), getDeclDesc(), getType(), hasSameBase(), and toAPValue().

isUnknownSizeArray()

bool clang::interp::Pointer::isUnknownSizeArray ( ) const

inline

Checks if the structure is an array of unknown size.

Definition at line 421 of file Pointer.h.

References getFieldDesc(), isBlockPointer(), and clang::interp::Descriptor::isUnknownSizeArray().

Referenced by clang::interp::ArrayDecay(), clang::interp::CheckArray(), clang::interp::CmpHelperEQ< Pointer >(), clang::interp::Context::evaluateStrlen(), clang::interp::interp__builtin_memcpy(), isOnePastEnd(), narrow(), and toAPValue().

isVirtualBaseClass()

bool clang::interp::Pointer::isVirtualBaseClass ( ) const

inline

Definition at line 549 of file Pointer.h.

References isField().

Referenced by computeOffsetForComparison(), clang::interp::computePointerOffset(), and toAPValue().

isVolatile()

bool clang::interp::Pointer::isVolatile ( ) const

inline

Checks if an object or a subfield is volatile.

Definition at line 575 of file Pointer.h.

References getDeclDesc(), isBlockPointer(), isRoot(), and clang::interp::Descriptor::IsVolatile.

Referenced by clang::interp::CheckVolatile().

isWeak()

bool clang::interp::Pointer::isWeak ( ) const

inline

Definition at line 532 of file Pointer.h.

References BS, Fn, isBlockPointer(), and isFunctionPointer().

isZero()

bool clang::interp::Pointer::isZero ( ) const

inline

Checks if the pointer is null.

Definition at line 259 of file Pointer.h.

References clang::interp::Block, BS, Fn, clang::interp::Fn, Int, clang::interp::Int, and clang::interp::Typeid.

Referenced by clang::interp::ArrayDecay(), clang::interp::Call(), clang::interp::CallPtr(), clang::interp::CheckBCPResult(), clang::interp::CheckFinalLoad(), clang::interp::EvaluationResult::checkFullyInitialized(), clang::interp::CheckLive(), clang::interp::CheckLoad(), clang::interp::CheckNewTypeMismatch(), clang::interp::CheckNonNullArgs(), clang::interp::CheckNull(), clang::interp::CheckPointerToIntegralCast(), clang::interp::CheckStore(), clang::interp::CmpHelperEQ< Pointer >(), clang::interp::Free(), getIndex(), hasSameBase(), clang::interp::interp__builtin_atomic_lock_free(), clang::interp::interp__builtin_is_within_lifetime(), clang::interp::interp__builtin_memchr(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_object_size(), clang::interp::interp__builtin_operator_delete(), isPastEnd(), isRoot(), narrow(), pointsToLiteral(), pointsToStringLiteral(), clang::interp::MemberPointer::takeInstance(), toAPValue(), toDiagnosticString(), and toRValue().

isZeroSizeArray()

bool clang::interp::Pointer::isZeroSizeArray ( ) const

inline

Checks if the pointer is pointing to a zero-size array.

Definition at line 660 of file Pointer.h.

References getFieldDesc(), and isFunctionPointer().

Referenced by clang::interp::ArrayDecay(), clang::interp::CheckRange(), clang::interp::CheckRange(), clang::interp::Free(), and toAPValue().

narrow()

Pointer clang::interp::Pointer::narrow ( ) const

inlinenodiscard

Restricts the scope of an array element pointer.

Definition at line 189 of file Pointer.h.

References BS, inArray(), inPrimitiveArray(), isBlockPointer(), isOnePastEnd(), isUnknownSizeArray(), isZero(), and Pointer().

Referenced by clang::interp::CheckArrayInitialized(), clang::interp::collectBlocks(), clang::interp::copyComposite(), clang::interp::endLifetimeRecurse(), enumerateData(), clang::interp::finishGlobalRecurse(), clang::interp::interp__builtin_object_size(), clang::interp::NarrowPtr(), clang::interp::RunDestructors(), clang::interp::startLifetimeRecurse(), and clang::interp::zeroAll().

operator!=()

bool clang::interp::Pointer::operator!= ( const Pointer & P ) const

inline

Definition at line 136 of file Pointer.h.

References Pointer().

operator=() [1/2]

Pointer & Pointer::operator=

(

const Pointer &

P

)

Definition at line 94 of file Pointer.cpp.

References clang::interp::BlockPointer::Base, Block, clang::interp::Block, block(), BS, Fn, clang::interp::Fn, Int, clang::interp::Int, isBlockPointer(), Pointer(), Typeid, and clang::interp::Typeid.

operator=() [2/2]

Pointer & Pointer::operator=

(

Pointer &&

P

)

Definition at line 133 of file Pointer.cpp.

References Block, clang::interp::Block, BS, Fn, clang::interp::Fn, Int, clang::interp::Int, isBlockPointer(), Pointer(), Typeid, and clang::interp::Typeid.

operator==()

bool clang::interp::Pointer::operator== ( const Pointer & P ) const

inline

Equality operators are just for tests.

Definition at line 121 of file Pointer.h.

References clang::interp::BlockPointer::Base, BS, clang::interp::IntPointer::Desc, Fn, clang::interp::FunctionPointer::getFunction(), Int, isBlockPointer(), isFunctionPointer(), isIntegralPointer(), clang::interp::BlockPointer::Pointee, Pointer(), and clang::interp::IntPointer::Value.

pointsToLiteral()

bool Pointer::pointsToLiteral

(

)

const

Whether this points to a block that's been created for a "literal lvalue", i.e.

a non-MaterializeTemporaryExpr Expr.

Definition at line 657 of file Pointer.cpp.

References clang::interp::Descriptor::asExpr(), block(), clang::interp::Block::getDescriptor(), clang::isa(), isBlockPointer(), isDynamic(), and isZero().

pointsToStringLiteral()

bool Pointer::pointsToStringLiteral

(

)

const

Definition at line 668 of file Pointer.cpp.

References clang::interp::Descriptor::asExpr(), block(), clang::interp::Block::getDescriptor(), isBlockPointer(), isDynamic(), and isZero().

Referenced by clang::interp::CmpHelperEQ< Pointer >().

pointToSameBlock()

bool Pointer::pointToSameBlock ( const Pointer & A, const Pointer & B )

static

Checks if both given pointers point to the same block.

Definition at line 646 of file Pointer.cpp.

References block(), isBlockPointer(), and Pointer().

Referenced by clang::interp::interp__builtin_memcpy(), and clang::interp::runRecordDestructor().

print()

void Pointer::print

(

llvm::raw_ostream &

OS

)

const

Prints the pointer.

Definition at line 327 of file Pointer.cpp.

References asFunctionPointer(), asTypeidPointer(), Block, clang::interp::Block, BS, clang::interp::Fn, clang::interp::FunctionPointer::getFunction(), clang::interp::Block::getSize(), Int, clang::interp::Int, isElementPastEnd(), isRoot(), clang::interp::Typeid, clang::interp::TypeidPointer::TypeInfoType, and clang::interp::TypeidPointer::TypePtr.

Referenced by clang::interp::operator<<().

startLifetime()

void clang::interp::Pointer::startLifetime ( ) const

inline

Definition at line 746 of file Pointer.h.

References BS, isBlockPointer(), and clang::interp::Started.

Referenced by clang::interp::startLifetimeRecurse().

toAPValue()

APValue Pointer::toAPValue

(

const ASTContext &

ASTCtx

)

const

Converts the pointer to an APValue.

Definition at line 172 of file Pointer.cpp.

References clang::APValue, clang::APValue::LValuePathEntry::ArrayIndex(), clang::interp::Descriptor::asDecl(), clang::interp::Descriptor::asExpr(), asFunctionPointer(), asIntPointer(), clang::interp::Descriptor::asValueDecl(), block(), clang::cast(), expand(), clang::CharUnits::fromQuantity(), getArray(), clang::Type::getAsRecordDecl(), clang::ASTContext::getASTRecordLayout(), getBase(), clang::ASTRecordLayout::getBaseClassOffset(), clang::interp::Descriptor::getDataType(), clang::interp::Function::getDecl(), clang::interp::Record::getDecl(), getDeclDesc(), getDeclPtr(), clang::RecordDecl::getDefinition(), clang::APValue::LValueBase::getDynamicAlloc(), clang::interp::Descriptor::getElemQualType(), clang::interp::Function::getExpr(), getFieldDesc(), clang::ASTRecordLayout::getFieldOffset(), getFieldOffset(), clang::interp::FunctionPointer::getFunction(), getIndex(), getNumElems(), getRecord(), clang::interp::Descriptor::getType(), getType(), clang::APValue::LValueBase::getTypeInfo(), clang::ASTContext::getTypeSizeInChars(), clang::ASTRecordLayout::getVBaseClassOffset(), isArrayElement(), isArrayRoot(), clang::Type::isArrayType(), isDynamic(), isField(), isFunctionPointer(), isIntegralPointer(), isOnePastEnd(), isTypeidPointer(), isUnknownSizeArray(), isVirtualBaseClass(), isZero(), isZeroSizeArray(), Pointer(), clang::ASTContext::toCharUnitsFromBits(), Typeid, and clang::CharUnits::Zero().

Referenced by clang::interp::GetDynamicDecl(), clang::interp::interp__builtin_assume_aligned(), toDiagnosticString(), and toRValue().

toDiagnosticString()

std::string Pointer::toDiagnosticString

(

const ASTContext &

Ctx

)

const

Converts the pointer to a string usable in diagnostics.

Definition at line 434 of file Pointer.cpp.

References asFunctionPointer(), asIntPointer(), clang::APValue::getAsString(), getType(), isFunctionPointer(), isIntegralPointer(), isZero(), toAPValue(), and clang::interp::FunctionPointer::toDiagnosticString().

Referenced by clang::interp::CheckDeleteSource(), clang::interp::CmpHelper< Pointer >(), clang::interp::CmpHelperEQ< Pointer >(), clang::interp::Destroy(), clang::interp::Free(), clang::interp::getField(), clang::interp::interp__builtin_memcpy(), clang::interp::interp__builtin_operator_delete(), and clang::interp::SubPtr().

toRValue()

std::optional< APValue > Pointer::toRValue	(	const Context &	Ctx,
		QualType	ResultType ) const

Converts the pointer to an APValue that is an rvalue.

Definition at line 721 of file Pointer.cpp.

References clang::APValue, clang::interp::Descriptor::asFieldDecl(), bool, clang::interp::Context::classify(), deref(), clang::interp::Record::fields(), std::function, clang::interp::Floating::getAPFloat(), clang::APValue::getArrayInitializedElt(), clang::interp::Context::getASTContext(), clang::interp::Record::getBase(), clang::ASTContext::getCanonicalTagType(), clang::interp::Record::getField(), getFieldDesc(), clang::interp::Record::getNumBases(), clang::interp::Record::getNumFields(), clang::interp::Record::getNumVirtualBases(), clang::interp::Record::getVirtualBase(), INT_TYPE_SWITCH, isActive(), isDummy(), clang::Type::isFloatingType(), clang::Type::isIntegerType(), isIntegralPointer(), isLive(), clang::QualType::isNull(), isPastEnd(), isZero(), Ok, Pointer(), clang::Result, clang::T, toAPValue(), and TYPE_SWITCH.

Friends And Related Symbol Documentation

Block

friend class Block

friend

Definition at line 791 of file Pointer.h.

References Block.

Referenced by Block, block(), expand(), isDummy(), operator=(), operator=(), Pointer(), Pointer(), Pointer(), print(), and ~Pointer().

DeadBlock

friend class DeadBlock

friend

Definition at line 792 of file Pointer.h.

References DeadBlock.

Referenced by DeadBlock.

DynamicAllocator

friend class DynamicAllocator

friend

Definition at line 796 of file Pointer.h.

References DynamicAllocator.

Referenced by DynamicAllocator.

InitMap

friend struct InitMap

friend

Definition at line 795 of file Pointer.h.

References InitMap.

Referenced by initializeElement(), and InitMap.

InterpState

friend class InterpState

friend

Definition at line 794 of file Pointer.h.

References InterpState.

Referenced by InterpState.

MemberPointer

friend class MemberPointer

friend

Definition at line 793 of file Pointer.h.

References MemberPointer.

Referenced by MemberPointer.

Program

friend class Program

friend

Definition at line 797 of file Pointer.h.

References BS, and Program.

Referenced by Program.

Member Data Documentation

BS

BlockPointer clang::interp::Pointer::BS

Definition at line 831 of file Pointer.h.

Referenced by activate(), allElementsInitialized(), asBlockPointer(), atField(), atFieldSub(), atIndex(), block(), canBeInitialized(), clang::interp::DynamicAllocator::cleanup(), clang::interp::DeadBlock::DeadBlock(), deref(), elem(), elemSize(), endLifetime(), expand(), getArray(), getBase(), getDeclDesc(), getDeclID(), getDeclPtr(), getIndex(), getIntegerRepresentation(), getLifetime(), getOffset(), getRawAddress(), getType(), hasSameArray(), initialize(), initializeElement(), inUnion(), isArrayElement(), isArrayRoot(), isDummy(), isDynamic(), isElementInitialized(), isExtern(), isInitialized(), isLive(), isOnePastEnd(), isPastEnd(), isRoot(), isStatic(), isTemporary(), isWeak(), isZero(), clang::interp::Block::movePointersTo(), narrow(), operator=(), operator=(), operator==(), Pointer(), Pointer(), Pointer(), print(), Program, startLifetime(), and ~Pointer().

Fn

FunctionPointer clang::interp::Pointer::Fn

Definition at line 832 of file Pointer.h.

Referenced by asFunctionPointer(), atIndex(), computeOffsetForComparison(), getIntegerRepresentation(), getSource(), getType(), isWeak(), isZero(), operator=(), operator=(), operator==(), Pointer(), Pointer(), and Pointer().

Int

IntPointer clang::interp::Pointer::Int

Definition at line 830 of file Pointer.h.

Referenced by asIntPointer(), atIndex(), computeOffsetForComparison(), elemSize(), getByteOffset(), getDeclDesc(), getFieldDesc(), getIntegerRepresentation(), getSource(), isZero(), operator=(), operator=(), operator==(), Pointer(), Pointer(), Pointer(), Pointer(), Pointer(), and print().

Typeid

TypeidPointer clang::interp::Pointer::Typeid

Definition at line 833 of file Pointer.h.

Referenced by asTypeidPointer(), getByteOffset(), getType(), operator=(), operator=(), Pointer(), Pointer(), Pointer(), and toAPValue().

---

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

• lib/AST/ByteCode/Pointer.h
• lib/AST/ByteCode/Pointer.cpp