LLVM 20.0.0git
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This is the common base class of value handles. More...
#include "llvm/IR/ValueHandle.h"
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. | |
void | clearValPtr () |
Clear the underlying pointer without clearing the use list. | |
Static Protected Member Functions | |
static bool | isValid (Value *V) |
Friends | |
class | Value |
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 29 of file ValueHandle.h.
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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 | |
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Assert | |
Callback | |
Weak | |
WeakTracking |
Definition at line 37 of file ValueHandle.h.
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inlineprotected |
Definition at line 39 of file ValueHandle.h.
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inlineprotected |
Definition at line 42 of file ValueHandle.h.
References getValPtr(), isValid(), and RHS.
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inlineexplicit |
Definition at line 56 of file ValueHandle.h.
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inline |
Definition at line 58 of file ValueHandle.h.
References getValPtr(), and isValid().
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inline |
Definition at line 64 of file ValueHandle.h.
References getValPtr(), isValid(), and RemoveFromUseList().
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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 114 of file ValueHandle.h.
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inlineprotected |
Definition at line 99 of file ValueHandle.h.
Referenced by llvm::SCEVUnknown::getType(), llvm::IVStrideUse::getUser(), llvm::SCEVUnknown::getValue(), llvm::PreservedCFGCheckerInstrumentation::BBGuard::isPoisoned(), llvm::WeakVH::operator Value *(), llvm::WeakTrackingVH::operator Value *(), llvm::CallbackVH::operator Value *(), operator*(), operator->(), operator=(), llvm::WeakTrackingVH::pointsToAliveValue(), RemoveFromUseList(), llvm::ValueMapCallbackVH< KeyT, ValueT, Config >::Unwrap(), ValueHandleBase(), and ~ValueHandleBase().
Definition at line 101 of file ValueHandle.h.
Referenced by operator=(), llvm::WeakTrackingVH::pointsToAliveValue(), ValueHandleBase(), and ~ValueHandleBase().
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inline |
Definition at line 92 of file ValueHandle.h.
References assert(), and getValPtr().
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inline |
Definition at line 91 of file ValueHandle.h.
References getValPtr().
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inline |
Definition at line 80 of file ValueHandle.h.
References getValPtr(), isValid(), RemoveFromUseList(), and RHS.
Definition at line 69 of file ValueHandle.h.
References getValPtr(), isValid(), RemoveFromUseList(), and RHS.
Referenced by llvm::WeakVH::operator=(), llvm::WeakTrackingVH::operator=(), and llvm::CallbackVH::setValPtr().
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protected |
Remove this ValueHandle from its current use list.
Definition at line 1176 of file Value.cpp.
References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::Value::getContext(), getValPtr(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::isPointerIntoBucketsArray(), llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::ValueHandles.
Referenced by operator=(), and ~ValueHandleBase().
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static |
Definition at line 1202 of file Value.cpp.
References Assert, assert(), Callback, llvm::dbgs(), llvm_unreachable, llvm::LLVMContextImpl::ValueHandles, Weak, and WeakTracking.
Referenced by llvm::Value::~Value().
Definition at line 1255 of file Value.cpp.
References Assert, assert(), Callback, llvm::dbgs(), llvm::Value::getContext(), llvm::Value::getName(), llvm::Value::getType(), llvm_unreachable, llvm::LLVMContext::pImpl, llvm::LLVMContextImpl::ValueHandles, Weak, and WeakTracking.
Referenced by llvm::MemorySSAUpdater::removeMemoryAccess(), and llvm::SSAUpdaterBulk::RewriteAllUses().
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friend |
Definition at line 30 of file ValueHandle.h.