class ValueAsMetadata

Declaration

class ValueAsMetadata : public Metadata,
                        private ReplaceableMetadataImpl { /* full declaration omitted */ };

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 \a ValueAsMetadata object, so the lookup maps are far more efficient than those using ValueHandleBase.

Declared at: llvm/include/llvm/IR/Metadata.h:345

Inherits from: Metadata, ReplaceableMetadataImpl

Member Variables

private llvm::Value* V

Inherited from Metadata:

protected Storage

protected SubclassData1

protected SubclassData16 = 0

protected SubclassData32 = 0

Method Overview

• protected ValueAsMetadata(unsigned int ID, llvm::Value * V)
• public static bool classof(const llvm::Metadata * MD)
• private void dropUsers()
• public static llvm::ValueAsMetadata * get(llvm::Value * V)
• public SmallVector<llvm::Metadata *> getAllArgListUsers()
• public static llvm::ConstantAsMetadata * getConstant(llvm::Value * C)
• public static llvm::ConstantAsMetadata * getConstantIfExists(llvm::Value * C)
• public llvm::LLVMContext & getContext() const
• public static llvm::ValueAsMetadata * getIfExists(llvm::Value * V)
• public static llvm::LocalAsMetadata * getLocal(llvm::Value * Local)
• public static llvm::LocalAsMetadata * getLocalIfExists(llvm::Value * Local)
• public llvm::Type * getType() const
• public llvm::Value * getValue() const
• public static void handleDeletion(llvm::Value * V)
• public static void handleRAUW(llvm::Value * From, llvm::Value * To)
• protected void replaceAllUsesWith(llvm::Metadata * MD)
• protected ~ValueAsMetadata()

Inherited from Metadata:

• public dump
• public dump
• public getMetadataID
• protected handleChangedOperand
• public print
• public print
• public printAsOperand
• public printAsOperand

Methods

¶ValueAsMetadata(unsigned int ID, llvm::Value* V)

Declared at: llvm/include/llvm/IR/Metadata.h:357

Parameters

unsigned int ID

llvm::Value* V

¶static bool classof(const llvm::Metadata* MD)

Declared at: llvm/include/llvm/IR/Metadata.h:407

Parameters

const llvm::Metadata* MD

¶void dropUsers()

Description

Drop users without RAUW (during teardown).

Declared at: llvm/include/llvm/IR/Metadata.h:352

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

Declared at: llvm/include/llvm/IR/Metadata.h:365

Parameters

llvm::Value* V

¶SmallVector<llvm::Metadata*> getAllArgListUsers()

Declared at: llvm/include/llvm/IR/Metadata.h:389

¶static llvm::ConstantAsMetadata* getConstant(
    llvm::Value* C)

Declared at: llvm/include/llvm/IR/Metadata.h:367

Parameters

llvm::Value* C

¶static llvm::ConstantAsMetadata*
getConstantIfExists(llvm::Value* C)

Declared at: llvm/include/llvm/IR/Metadata.h:377

Parameters

llvm::Value* C

¶llvm::LLVMContext& getContext() const

Declared at: llvm/include/llvm/IR/Metadata.h:387

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

Declared at: llvm/include/llvm/IR/Metadata.h:375

Parameters

llvm::Value* V

¶static llvm::LocalAsMetadata* getLocal(
    llvm::Value* Local)

Declared at: llvm/include/llvm/IR/Metadata.h:371

Parameters

llvm::Value* Local

¶static llvm::LocalAsMetadata* getLocalIfExists(
    llvm::Value* Local)

Declared at: llvm/include/llvm/IR/Metadata.h:381

Parameters

llvm::Value* Local

¶llvm::Type* getType() const

Declared at: llvm/include/llvm/IR/Metadata.h:386

¶llvm::Value* getValue() const

Declared at: llvm/include/llvm/IR/Metadata.h:385

¶static void handleDeletion(llvm::Value* V)

Declared at: llvm/include/llvm/IR/Metadata.h:393

Parameters

llvm::Value* V

¶static void handleRAUW(llvm::Value* From,
                       llvm::Value* To)

Declared at: llvm/include/llvm/IR/Metadata.h:394

Parameters

llvm::Value* From

llvm::Value* To

¶void replaceAllUsesWith(llvm::Metadata* MD)

Description

Handle collisions after \a Value::replaceAllUsesWith(). RAUW isn't supported directly for \a ValueAsMetadata, but if the wrapped\a Value gets RAUW'ed and the target already exists, this is used to merge the two metadata nodes.

Declared at: llvm/include/llvm/IR/Metadata.h:402

Parameters

llvm::Metadata* MD

¶~ValueAsMetadata()

Declared at: llvm/include/llvm/IR/Metadata.h:362