LLVM  8.0.1
Public Member Functions | Static Public Member Functions | Protected Member Functions | Friends | List of all members
llvm::ValueAsMetadata Class Reference

Value wrapper in the Metadata hierarchy. More...

#include "llvm/IR/Metadata.h"

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Public Member Functions

Value * getValue () const
 
Type * getType () const
 
LLVMContext & getContext () const
 
- Public Member Functions inherited from llvm::Metadata
unsigned getMetadataID () const
 
void dump () const
 User-friendly dump. More...
 
void dump (const Module *M) const
 
void print (raw_ostream &OS, const Module *M=nullptr, bool IsForDebug=false) const
 Print. More...
 
void print (raw_ostream &OS, ModuleSlotTracker &MST, const Module *M=nullptr, bool IsForDebug=false) const
 
void printAsOperand (raw_ostream &OS, const Module *M=nullptr) const
 Print as operand. More...
 
void printAsOperand (raw_ostream &OS, ModuleSlotTracker &MST, const Module *M=nullptr) const
 

Static Public Member Functions

static ValueAsMetadata * get (Value *V)
 
static ConstantAsMetadata * getConstant (Value *C)
 
static LocalAsMetadata * getLocal (Value *Local)
 
static ValueAsMetadata * getIfExists (Value *V)
 
static ConstantAsMetadata * getConstantIfExists (Value *C)
 
static LocalAsMetadata * getLocalIfExists (Value *Local)
 
static void handleDeletion (Value *V)
 
static void handleRAUW (Value *From, Value *To)
 
static bool classof (const Metadata *MD)
 

Protected Member Functions

 ValueAsMetadata (unsigned ID, Value *V)
 
 ~ValueAsMetadata ()=default
 
void replaceAllUsesWith (Metadata *MD)
 Handle collisions after Value::replaceAllUsesWith(). More...
 
- Protected Member Functions inherited from llvm::Metadata
 Metadata (unsigned ID, StorageType Storage)
 
 ~Metadata ()=default
 
void handleChangedOperand (void *, Metadata *)
 Default handling of a changed operand, which asserts. More...
 

Friends

class ReplaceableMetadataImpl
 
class LLVMContextImpl
 

Additional Inherited Members

- Public Types inherited from llvm::Metadata
enum  MetadataKind
 
- Protected Types inherited from llvm::Metadata
enum  StorageType { Uniqued, Distinct, Temporary }
 Active type of storage. More...
 
- Protected Attributes inherited from llvm::Metadata
unsigned char Storage: 7
 Storage flag for non-uniqued, otherwise unowned, metadata. More...
 
unsigned char ImplicitCode: 1
 
unsigned short SubclassData16 = 0
 
unsigned SubclassData32 = 0
 

Detailed Description

Value wrapper in the Metadata hierarchy.

This is a custom value handle that allows other metadata to refer to classes in the Value hierarchy.

Because of full uniquing support, each value is only wrapped by a single ValueAsMetadata object, so the lookup maps are far more efficient than those using ValueHandleBase.

Definition at line 339 of file Metadata.h.

Constructor & Destructor Documentation

◆ ValueAsMetadata()

llvm::ValueAsMetadata::ValueAsMetadata ( unsigned  ID,
Value *  V 
)
inlineprotected

Definition at line 351 of file Metadata.h.

References assert().

◆ ~ValueAsMetadata()

llvm::ValueAsMetadata::~ValueAsMetadata ( )
protecteddefault

Member Function Documentation

◆ classof()

static bool llvm::ValueAsMetadata::classof ( const Metadata *  MD)
inlinestatic

Definition at line 397 of file Metadata.h.

References llvm::Metadata::getMetadataID().

◆ get()

ValueAsMetadata * ValueAsMetadata::get ( Value *  V)
static

Definition at line 349 of file Metadata.cpp.

References assert(), C, llvm::Value::getContext(), llvm::Value::IsUsedByMD, llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::ValuesAsMetadata.

Referenced by llvm::formLCSSAForInstructions(), FunctionNumber(), getDbgIntrinsicValueImpl(), llvm::insertDebugValuesForPHIs(), instrumentMaskedLoadOrStore(), LLVMValueAsMetadata(), operator<<(), llvm::remapInstruction(), llvm::replaceDbgUsesWithUndef(), RewriteUsesOfClonedInstructions(), llvm::CGProfilePass::run(), shouldInstrumentBlock(), truncateIVUse(), and wrapValueInMetadata().

◆ getConstant()

static ConstantAsMetadata* llvm::ValueAsMetadata::getConstant ( Value *  C)
inlinestatic

Definition at line 361 of file Metadata.h.

References C.

Referenced by llvm::ConstantAsMetadata::get(), and wrapConstantAsMetadata().

◆ getConstantIfExists()

static ConstantAsMetadata* llvm::ValueAsMetadata::getConstantIfExists ( Value *  C)
inlinestatic

Definition at line 371 of file Metadata.h.

Referenced by llvm::ConstantAsMetadata::getIfExists().

◆ getContext()

LLVMContext& llvm::ValueAsMetadata::getContext ( ) const
inline

Definition at line 381 of file Metadata.h.

References From, and llvm::Value::getContext().

◆ getIfExists()

ValueAsMetadata * ValueAsMetadata::getIfExists ( Value *  V)
static

Definition at line 368 of file Metadata.cpp.

References assert(), llvm::Value::getContext(), llvm::LLVMContext::pImpl, and llvm::LLVMContextImpl::ValuesAsMetadata.

◆ getLocal()

static LocalAsMetadata* llvm::ValueAsMetadata::getLocal ( Value *  Local)
inlinestatic

Definition at line 365 of file Metadata.h.

Referenced by llvm::LocalAsMetadata::get().

◆ getLocalIfExists()

static LocalAsMetadata* llvm::ValueAsMetadata::getLocalIfExists ( Value *  Local)
inlinestatic

Definition at line 375 of file Metadata.h.

Referenced by llvm::LocalAsMetadata::getIfExists().

◆ getType()

Type* llvm::ValueAsMetadata::getType ( ) const
inline

Definition at line 380 of file Metadata.h.

References llvm::Value::getType().

◆ getValue()

Value* llvm::ValueAsMetadata::getValue ( ) const
inline

Definition at line 379 of file Metadata.h.

Referenced by forEachUser(), getOptimizationFlags(), llvm::ConstantAsMetadata::getValue(), handleDeletion(), handleRAUW(), and llvm::ValueEnumerator::print().

◆ handleDeletion()

void ValueAsMetadata::handleDeletion ( Value *  V)
static

Definition at line 373 of file Metadata.cpp.

References assert(), llvm::Type::getContext(), llvm::Value::getType(), getValue(), I, llvm::LLVMContext::pImpl, replaceAllUsesWith(), llvm::SPII::Store, and llvm::LLVMContextImpl::ValuesAsMetadata.

Referenced by llvm::Value::~Value().

◆ handleRAUW()

void ValueAsMetadata::handleRAUW ( Value *  From,
Value *  To 
)
static

Definition at line 392 of file Metadata.cpp.

References assert(), C, llvm::ConstantAsMetadata::get(), llvm::Type::getContext(), getLocalFunctionMetadata(), llvm::Value::getType(), getValue(), I, llvm::Value::IsUsedByMD, replaceAllUsesWith(), and llvm::SPII::Store.

Referenced by contains(), and getStartOrEndSlot().

◆ replaceAllUsesWith()

void llvm::ValueAsMetadata::replaceAllUsesWith ( Metadata *  MD)
inlineprotected

Handle collisions after Value::replaceAllUsesWith().

RAUW isn't supported directly for ValueAsMetadata, but if the wrapped Value gets RAUW'ed and the target already exists, this is used to merge the two metadata nodes.

Definition at line 392 of file Metadata.h.

References llvm::ReplaceableMetadataImpl::replaceAllUsesWith().

Referenced by handleDeletion(), and handleRAUW().

Friends And Related Function Documentation

◆ LLVMContextImpl

friend class LLVMContextImpl
friend

Definition at line 341 of file Metadata.h.

◆ ReplaceableMetadataImpl

friend class ReplaceableMetadataImpl
friend

Definition at line 340 of file Metadata.h.

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