llvm::MDString Class Reference

A single uniqued string. More...

#include "llvm/IR/Metadata.h"

Inheritance diagram for llvm::MDString:

Public Types
using	iterator = StringRef::iterator
Public Types inherited from llvm::Metadata
enum	MetadataKind

Public Member Functions
	MDString (const MDString &)=delete
MDString &	operator= (MDString &&)=delete
MDString &	operator= (const MDString &)=delete
StringRef	getString () const
unsigned	getLength () const
iterator	begin () const
	Pointer to the first byte of the string.
iterator	end () const
	Pointer to one byte past the end of the string.
const unsigned char *	bytes_begin () const
const unsigned char *	bytes_end () const
Public Member Functions inherited from llvm::Metadata
unsigned	getMetadataID () const
void	dump () const
	User-friendly dump.
void	dump (const Module *M) const
void	print (raw_ostream &OS, const Module *M=nullptr, bool IsForDebug=false) const
	Print.
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.
void	printAsOperand (raw_ostream &OS, ModuleSlotTracker &MST, const Module *M=nullptr) const

Static Public Member Functions
static MDString *	get (LLVMContext &Context, StringRef Str)
static MDString *	get (LLVMContext &Context, const char *Str)
static bool	classof (const Metadata *MD)
	Methods for support type inquiry through isa, cast, and dyn_cast.

Friends
class	StringMapEntryStorage< MDString >

Additional Inherited Members
Protected Types inherited from llvm::Metadata
enum	StorageType { Uniqued , Distinct , Temporary }
	Active type of storage. 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.
Protected Attributes inherited from llvm::Metadata
unsigned char	Storage: 7
	Storage flag for non-uniqued, otherwise unowned, metadata.
unsigned char	SubclassData1: 1
unsigned short	SubclassData16 = 0
unsigned	SubclassData32 = 0

Detailed Description

A single uniqued string.

These are used to efficiently contain a byte sequence for metadata. MDString is always unnamed.

Definition at line 698 of file Metadata.h.

Member Typedef Documentation

iterator

using llvm::MDString::iterator = StringRef::iterator

Definition at line 719 of file Metadata.h.

Constructor & Destructor Documentation

MDString()

llvm::MDString::MDString ( const MDString &  )

delete

Member Function Documentation

begin()

iterator llvm::MDString::begin ( ) const

inline

Pointer to the first byte of the string.

Definition at line 722 of file Metadata.h.

References llvm::StringRef::begin(), and getString().

bytes_begin()

const unsigned char * llvm::MDString::bytes_begin ( ) const

inline

Definition at line 727 of file Metadata.h.

References llvm::StringRef::bytes_begin(), and getString().

bytes_end()

const unsigned char * llvm::MDString::bytes_end ( ) const

inline

Definition at line 728 of file Metadata.h.

References llvm::StringRef::bytes_end(), and getString().

classof()

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

inlinestatic

Methods for support type inquiry through isa, cast, and dyn_cast.

Definition at line 731 of file Metadata.h.

References llvm::Metadata::getMetadataID().

end()

iterator llvm::MDString::end ( ) const

inline

Pointer to one byte past the end of the string.

Definition at line 725 of file Metadata.h.

References llvm::StringRef::end(), and getString().

get() [1/2]

static MDString * llvm::MDString::get ( LLVMContext &  Context, const char *  Str  )

inlinestatic

Definition at line 711 of file Metadata.h.

References Context, and get().

get() [2/2]

MDString * MDString::get ( LLVMContext &  Context, StringRef  Str  )

static

Definition at line 564 of file Metadata.cpp.

References Context, I, llvm::LLVMContextImpl::MDStringCache, and llvm::LLVMContext::pImpl.

Referenced by llvm::Module::addModuleFlag(), AddRuntimeUnrollDisableMetaData(), llvm::OpenMPIRBuilder::applySimd(), convertToLocalCopy(), createMIBNode(), llvm::OpenMPIRBuilder::createOffloadEntriesAndInfoMetadata(), llvm::OpenMPIRBuilder::createOffloadEntry(), llvm::createPGOFuncNameMetadata(), llvm::dxil::createShaderModelMD(), llvm::MDBuilder::createString(), createStringMetadata(), llvm::DIBuilder::createTemplateTemplateParameter(), DisableAllLoopOptsOnLoop(), llvm::embedBufferInModule(), llvm::emitAMDGPUPrintfCall(), llvm::hlsl::FrontendResource::FrontendResource(), get(), llvm::DINode::getCanonicalMDString(), llvm::DIMacroNode::getCanonicalMDString(), getKeyFPValMD(), getKeyValMD(), llvm::GCNTTIImpl::instCombineIntrinsic(), LLVMMDStringInContext(), LLVMMDStringInContext2(), llvm::LLParser::parseMDField(), postUnswitch(), llvm::LoopVectorizeHints::setAlreadyVectorized(), llvm::Module::setDarwinTargetVariantTriple(), llvm::Loop::setLoopAlreadyUnrolled(), llvm::Loop::setLoopMustProgress(), llvm::Module::setStackProtectorGuard(), llvm::Module::setStackProtectorGuardReg(), llvm::Module::setStackProtectorGuardSymbol(), solveTypeName(), llvm::OpenMPIRBuilder::unrollLoopFull(), llvm::OpenMPIRBuilder::unrollLoopHeuristic(), llvm::OpenMPIRBuilder::unrollLoopPartial(), updateNVPTXMetadata(), upgradeLoopTag(), llvm::UpgradeModuleFlags(), UpgradeRetainReleaseMarker(), and llvm::dxil::ResourceBase::write().

getLength()

unsigned llvm::MDString::getLength ( ) const

inline

Definition at line 717 of file Metadata.h.

References getString(), and llvm::StringRef::size().

getString()

StringRef MDString::getString

(

)

const

Definition at line 574 of file Metadata.cpp.

References assert().

Referenced by llvm::addStringMetadataToLoop(), begin(), bytes_begin(), bytes_end(), llvm::cacheAnnotationFromMD(), createProfileFileNameVar(), llvm::WebAssemblyAsmPrinter::emitEndOfAsmFile(), end(), llvm::findOptionMDForLoopID(), getArgAccessQual(), getArgSPIRVType(), llvm::omp::getDeviceKernels(), GetFunctionFromMDNode(), getHiPELiteral(), llvm::BasicBlock::getIrrLoopHeaderWeight(), getKernelArgTypeQual(), getLength(), getSummaryFromMD(), llvm::GetUnrollMetadata(), getValMD(), hasAnyUnrollPragma(), isCanonical(), isKeyValuePair(), llvm::LegalizerHelper::lowerReadWriteRegister(), and llvm::makePostTransformationMetadata().

operator=() [1/2]

MDString & llvm::MDString::operator= ( const MDString &  )

delete

operator=() [2/2]

MDString & llvm::MDString::operator= ( MDString &&  )

delete

Friends And Related Function Documentation

StringMapEntryStorage< MDString >

friend class StringMapEntryStorage< MDString >

friend

Definition at line 615 of file Metadata.h.

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

• include/llvm/IR/Metadata.h
• lib/IR/Metadata.cpp