LLVM 20.0.0git
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Value handle with callbacks on RAUW and destruction. More...
#include "llvm/IR/ValueHandle.h"
Public Member Functions | |
CallbackVH () | |
CallbackVH (Value *P) | |
CallbackVH (const Value *P) | |
operator Value * () const | |
virtual void | deleted () |
Callback for Value destruction. | |
virtual void | allUsesReplacedWith (Value *) |
Callback for Value RAUW. | |
Public Member Functions inherited from llvm::ValueHandleBase | |
ValueHandleBase (HandleBaseKind Kind) | |
ValueHandleBase (HandleBaseKind Kind, Value *V) | |
~ValueHandleBase () | |
Value * | operator= (Value *RHS) |
Value * | operator= (const ValueHandleBase &RHS) |
Value * | operator-> () const |
Value & | operator* () const |
Protected Member Functions | |
~CallbackVH ()=default | |
CallbackVH (const CallbackVH &)=default | |
CallbackVH & | operator= (const CallbackVH &)=default |
void | setValPtr (Value *P) |
Protected Member Functions inherited from llvm::ValueHandleBase | |
ValueHandleBase (const ValueHandleBase &RHS) | |
ValueHandleBase (HandleBaseKind Kind, const ValueHandleBase &RHS) | |
Value * | getValPtr () const |
void | RemoveFromUseList () |
Remove this ValueHandle from its current use list. | |
void | clearValPtr () |
Clear the underlying pointer without clearing the use list. | |
Additional Inherited Members | |
Static Public Member Functions inherited from llvm::ValueHandleBase | |
static void | ValueIsDeleted (Value *V) |
static void | ValueIsRAUWd (Value *Old, Value *New) |
Protected Types inherited from llvm::ValueHandleBase | |
enum | HandleBaseKind { Assert , Callback , Weak , WeakTracking } |
This indicates what sub class the handle actually is. More... | |
Static Protected Member Functions inherited from llvm::ValueHandleBase | |
static bool | isValid (Value *V) |
Value handle with callbacks on RAUW and destruction.
This is a value handle that allows subclasses to define callbacks that run when the underlying Value has RAUW called on it or is destroyed. This class can be used as the key of a map, as long as the user takes it out of the map before calling setValPtr() (since the map has to rearrange itself when the pointer changes). Unlike ValueHandleBase, this class has a vtable.
Definition at line 383 of file ValueHandle.h.
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protecteddefault |
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protecteddefault |
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inline |
Definition at line 395 of file ValueHandle.h.
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inline |
Definition at line 396 of file ValueHandle.h.
Definition at line 397 of file ValueHandle.h.
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inlinevirtual |
Callback for Value RAUW.
Called when this->getValPtr()->replaceAllUsesWith(new_value) is called, before any of the uses have actually been replaced. If WeakTrackingVH were implemented as a CallbackVH, it would use this method to call setValPtr(new_value). AssertingVH would do nothing in this method.
Reimplemented in llvm::PreservedCFGCheckerInstrumentation::BBGuard, and llvm::ValueMapCallbackVH< KeyT, ValueT, Config >.
Definition at line 423 of file ValueHandle.h.
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inlinevirtual |
Callback for Value destruction.
Called when this->getValPtr() is destroyed, inside ~Value(), so you may call any non-virtual Value method on getValPtr(), but no subclass methods. If WeakTrackingVH were implemented as a CallbackVH, it would use this method to call setValPtr(NULL). AssertingVH would use this method to cause an assertion failure.
All implementations must remove the reference from this object to the Value that's being destroyed.
Reimplemented in llvm::bfi_detail::BFICallbackVH< BasicBlock, BFIImplT >, llvm::ValueMapCallbackVH< KeyT, ValueT, Config >, and llvm::PreservedCFGCheckerInstrumentation::BBGuard.
Definition at line 414 of file ValueHandle.h.
References setValPtr().
Referenced by llvm::PreservedCFGCheckerInstrumentation::BBGuard::allUsesReplacedWith(), and llvm::PreservedCFGCheckerInstrumentation::BBGuard::deleted().
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inline |
Definition at line 399 of file ValueHandle.h.
References llvm::ValueHandleBase::getValPtr().
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protecteddefault |
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inlineprotected |
Definition at line 390 of file ValueHandle.h.
References llvm::ValueHandleBase::operator=(), and P.
Referenced by deleted(), and llvm::IVStrideUse::setUser().