llvm::ValueHandleBase Class Reference

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

#include "llvm/IR/ValueHandle.h"

Inheritance diagram for llvm::ValueHandleBase:

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 LLVM_ABI void	ValueIsDeleted (Value *V)
static LLVM_ABI 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
LLVM_ABI void	RemoveFromUseList ()
	Remove this ValueHandle from its current use list.
void	clearValPtr ()
	Clear the underlying pointer without clearing the use list.

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.

References RHS, and ValueHandleBase().

Referenced by llvm::CallbackVH::CallbackVH(), llvm::CallbackVH::CallbackVH(), operator=(), llvm::WeakTrackingVH::operator=(), llvm::WeakVH::operator=(), ValueHandleBase(), ValueHandleBase(), llvm::WeakTrackingVH::WeakTrackingVH(), llvm::WeakTrackingVH::WeakTrackingVH(), llvm::WeakTrackingVH::WeakTrackingVH(), llvm::WeakVH::WeakVH(), llvm::WeakVH::WeakVH(), and llvm::WeakVH::WeakVH().

ValueHandleBase() [2/4]

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

inlineprotected

Definition at line 43 of file ValueHandle.h.

References getValPtr(), isValid(), RHS, and ValueHandleBase().

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(), isValid(), and Value.

~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 115 of file ValueHandle.h.

getValPtr()

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

inlineprotected

Definition at line 100 of file ValueHandle.h.

References Value.

Referenced by llvm::bfi_detail::BFICallbackVH< BasicBlock, BFIImplT >::deleted(), llvm::SCEVUnknown::getType(), llvm::IVStrideUse::getUser(), llvm::SCEVUnknown::getValue(), llvm::PreservedCFGCheckerInstrumentation::BBGuard::isPoisoned(), llvm::CallbackVH::operator Value *(), llvm::WeakTrackingVH::operator Value *(), llvm::WeakVH::operator Value *(), operator*(), operator->(), operator=(), operator=(), llvm::WeakTrackingVH::pointsToAliveValue(), llvm::ValueMapCallbackVH< KeyT, ValueT, Config >::Unwrap(), ValueHandleBase(), ValueHandleBase(), and ~ValueHandleBase().

isValid()

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

inlinestaticprotected

Definition at line 102 of file ValueHandle.h.

References Value.

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

operator*()

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

inline

Definition at line 93 of file ValueHandle.h.

References assert(), getValPtr(), and Value.

operator->()

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

inline

Definition at line 92 of file ValueHandle.h.

References getValPtr(), and Value.

operator=() [1/2]

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

inline

Definition at line 81 of file ValueHandle.h.

References getValPtr(), isValid(), RemoveFromUseList(), RHS, Value, and ValueHandleBase().

operator=() [2/2]

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

inline

Definition at line 70 of file ValueHandle.h.

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

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

RemoveFromUseList()

void ValueHandleBase::RemoveFromUseList ( )

protected

Remove this ValueHandle from its current use list.

Definition at line 1202 of file Value.cpp.

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

ValueIsDeleted()

void ValueHandleBase::ValueIsDeleted ( Value * V )

static

Definition at line 1228 of file Value.cpp.

ValueIsRAUWd()

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

static

Definition at line 1281 of file Value.cpp.

Referenced by llvm::MemorySSAUpdater::removeMemoryAccess(), and llvm::SSAUpdaterBulk::RewriteAllUses().

Friends And Related Symbol Documentation

Value

friend class Value

friend

Definition at line 31 of file ValueHandle.h.

References Value.

Referenced by llvm::CallbackVH::allUsesReplacedWith(), llvm::PreservedCFGCheckerInstrumentation::BBGuard::allUsesReplacedWith(), llvm::CallbackVH::CallbackVH(), llvm::CallbackVH::CallbackVH(), getValPtr(), isValid(), llvm::CallbackVH::operator Value *(), llvm::WeakTrackingVH::operator Value *(), llvm::WeakVH::operator Value *(), operator*(), operator->(), operator=(), operator=(), llvm::WeakTrackingVH::operator=(), llvm::WeakTrackingVH::operator=(), llvm::WeakVH::operator=(), llvm::WeakVH::operator=(), llvm::CallbackVH::setValPtr(), Value, ValueHandleBase(), llvm::WeakTrackingVH::WeakTrackingVH(), and llvm::WeakVH::WeakVH().

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

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