This is the common base class of value handles. More...

#include "llvm/IR/ValueHandle.h"

Inheritance diagram for llvm::ValueHandleBase:

[legend]

Public Member Functions
	ValueHandleBase (HandleBaseKind Kind)

	ValueHandleBase (HandleBaseKind Kind, Value *V)

	~ValueHandleBase ()

Value *	operator= (Value *RHS)

Value *	operator= (const ValueHandleBase &RHS)

Value *	operator-> () const

Value &	operator* () const

Static Public Member Functions
static void	ValueIsDeleted (Value *V)

static void	ValueIsRAUWd (Value Old, Value New)

Protected Types
enum	HandleBaseKind { Assert, Callback, Weak, WeakTracking }
	This indicates what sub class the handle actually is. More...

Protected Member Functions
	ValueHandleBase (const ValueHandleBase &RHS)

	ValueHandleBase (HandleBaseKind Kind, const ValueHandleBase &RHS)

Value *	getValPtr () const

void	RemoveFromUseList ()
	Remove this ValueHandle from its current use list. More...

void	clearValPtr ()
	Clear the underlying pointer without clearing the use list. More...

Static Protected Member Functions
static bool	isValid (Value *V)

Friends
class	Value

Detailed Description

This is the common base class of value handles.

ValueHandle's are smart pointers to Value's that have special behavior when the value is deleted or ReplaceAllUsesWith'd. See the specific handles below for details.

Definition at line 30 of file ValueHandle.h.

Member Enumeration Documentation

◆ HandleBaseKind

enum llvm::ValueHandleBase::HandleBaseKind

protected

This indicates what sub class the handle actually is.

This is to avoid having a vtable for the light-weight handle pointers. The fully general Callback version does have a vtable.

Enumerator
Assert
Callback
Weak
WeakTracking

Definition at line 38 of file ValueHandle.h.

Constructor & Destructor Documentation

◆ ValueHandleBase() [1/4]

llvm::ValueHandleBase::ValueHandleBase ( const ValueHandleBase & RHS )

inlineprotected

Definition at line 40 of file ValueHandle.h.

◆ ValueHandleBase() [2/4]

llvm::ValueHandleBase::ValueHandleBase	(	HandleBaseKind	Kind,
		const ValueHandleBase &	RHS
	)

inlineprotected

Definition at line 43 of file ValueHandle.h.

References getValPtr(), and isValid().

◆ ValueHandleBase() [3/4]

llvm::ValueHandleBase::ValueHandleBase ( HandleBaseKind Kind )

inlineexplicit

Definition at line 57 of file ValueHandle.h.

◆ ValueHandleBase() [4/4]

llvm::ValueHandleBase::ValueHandleBase	(	HandleBaseKind	Kind,
		Value *	V
	)

inline

Definition at line 59 of file ValueHandle.h.

References getValPtr(), and isValid().

◆ ~ValueHandleBase()

llvm::ValueHandleBase::~ValueHandleBase ( )

inline

Definition at line 65 of file ValueHandle.h.

References getValPtr(), isValid(), and RemoveFromUseList().

Member Function Documentation

◆ clearValPtr()

void llvm::ValueHandleBase::clearValPtr ( )

inlineprotected

Clear the underlying pointer without clearing the use list.

This should only be used if a derived class has manually removed the handle from the use list.

Definition at line 111 of file ValueHandle.h.

References llvm::PointerIntPair< PointerTy, IntBits, IntType, PtrTraits, Info >::getInt(), llvm::PointerIntPair< PointerTy, IntBits, IntType, PtrTraits, Info >::getPointer(), List, llvm::PointerIntPair< PointerTy, IntBits, IntType, PtrTraits, Info >::setPointer(), ValueIsDeleted(), and ValueIsRAUWd().

Referenced by llvm::PoisoningVH< llvm::BasicBlock >::operator=(), and llvm::PoisoningVH< llvm::BasicBlock >::~PoisoningVH().

◆ getValPtr()

Value* llvm::ValueHandleBase::getValPtr ( ) const

inlineprotected

Definition at line 96 of file ValueHandle.h.

Referenced by llvm::cflaa::FunctionHandle< AAResult >::allUsesReplacedWith(), llvm::IVStrideUse::getUser(), llvm::DenseMapInfo< ValueMapCallbackVH< KeyT, ValueT, Config > >::isEqual(), llvm::WeakVH::operator Value *(), llvm::WeakTrackingVH::operator Value *(), llvm::CallbackVH::operator Value *(), llvm::AssertingVH< ValueTy >::operator ValueTy *(), llvm::TrackingVH< ValueTy >::operator ValueTy *(), llvm::PoisoningVH< ValueTy >::operator ValueTy *(), operator*(), llvm::AssertingVH< llvm::PHINode >::operator*(), llvm::TrackingVH< llvm::Value >::operator*(), llvm::PoisoningVH< llvm::BasicBlock >::operator*(), operator->(), llvm::AssertingVH< llvm::PHINode >::operator->(), llvm::TrackingVH< llvm::Value >::operator->(), llvm::PoisoningVH< llvm::BasicBlock >::operator->(), operator=(), llvm::AssertingVH< llvm::PHINode >::operator=(), llvm::TrackingVH< llvm::Value >::operator=(), llvm::WeakTrackingVH::pointsToAliveValue(), ValueHandleBase(), and ~ValueHandleBase().

◆ isValid()

static bool llvm::ValueHandleBase::isValid ( Value * V )

inlinestaticprotected

Definition at line 98 of file ValueHandle.h.

References RemoveFromUseList().

Referenced by operator=(), llvm::WeakTrackingVH::pointsToAliveValue(), ValueHandleBase(), and ~ValueHandleBase().

◆ operator*()

Value& llvm::ValueHandleBase::operator* ( ) const

inline

Definition at line 93 of file ValueHandle.h.

References getValPtr().

◆ operator->()

Value* llvm::ValueHandleBase::operator-> ( ) const

inline

Definition at line 92 of file ValueHandle.h.

References getValPtr().

◆ operator=() [1/2]

Value* llvm::ValueHandleBase::operator= ( Value * RHS )

inline

Definition at line 70 of file ValueHandle.h.

References getValPtr(), isValid(), and RemoveFromUseList().

Referenced by llvm::WeakVH::operator=(), llvm::WeakTrackingVH::operator=(), llvm::MMIAddrLabelMapCallbackPtr::setPtr(), llvm::CallbackVH::setValPtr(), llvm::WeakTrackingVH::WeakTrackingVH(), and llvm::WeakVH::WeakVH().

◆ operator=() [2/2]

Value* llvm::ValueHandleBase::operator= ( const ValueHandleBase & RHS )

inline

Definition at line 81 of file ValueHandle.h.

References getValPtr(), isValid(), and RemoveFromUseList().

◆ RemoveFromUseList()

void ValueHandleBase::RemoveFromUseList ( )

protected

Remove this ValueHandle from its current use list.

Definition at line 806 of file Value.cpp.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::isPointerIntoBucketsArray(), and llvm::LLVMContextImpl::ValueHandles.

Referenced by isValid(), operator=(), and ~ValueHandleBase().

◆ ValueIsDeleted()

void ValueHandleBase::ValueIsDeleted ( Value * V )

static

Definition at line 832 of file Value.cpp.

References assert(), Assert, llvm::dbgs(), llvm::Value::getContext(), llvm::Value::getName(), llvm::Value::getType(), llvm_unreachable, llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::ValueHandles.

Referenced by clearValPtr(), findInitTrampoline(), and llvm::Value::~Value().

◆ ValueIsRAUWd()

void ValueHandleBase::ValueIsRAUWd	(	Value *	Old,
		Value *	New
	)

static

Definition at line 885 of file Value.cpp.

References assert(), Assert, llvm::dbgs(), llvm::Value::getContext(), llvm::Value::getName(), llvm::Value::getType(), llvm_unreachable, and llvm::LLVMContext::pImpl.

Referenced by clearValPtr(), contains(), findInitTrampoline(), llvm::formLCSSAForInstructions(), llvm::MemorySSAUpdater::removeMemoryAccess(), llvm::SSAUpdaterBulk::RewriteAllUses(), and llvm::SSAUpdater::RewriteUse().

Friends And Related Function Documentation

◆ Value

friend class Value

friend

Definition at line 31 of file ValueHandle.h.

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

include/llvm/IR/ValueHandle.h
lib/IR/Value.cpp

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Friends

Detailed Description

Member Enumeration Documentation

◆ HandleBaseKind

Constructor & Destructor Documentation

◆ ValueHandleBase() [1/4]

◆ ValueHandleBase() [2/4]

◆ ValueHandleBase() [3/4]

◆ ValueHandleBase() [4/4]

◆ ~ValueHandleBase()

Member Function Documentation

◆ clearValPtr()

◆ getValPtr()

◆ isValid()

◆ operator*()

◆ operator->()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ RemoveFromUseList()

◆ ValueIsDeleted()

◆ ValueIsRAUWd()

Friends And Related Function Documentation

◆ Value