llvm::StringRef Class Reference

StringRef - Represent a constant reference to a string, i.e. More...

#include "llvm/ADT/StringRef.h"

Inheritance diagram for llvm::StringRef:

Public Types
using	iterator = const char *
using	const_iterator = const char *
using	size_type = size_t
using	value_type = char
using	reverse_iterator = std::reverse_iterator<iterator>
using	const_reverse_iterator = std::reverse_iterator<const_iterator>

Public Member Functions
Constructors
	StringRef ()=default
	Construct an empty string ref.
	StringRef (std::nullptr_t)=delete
	Disable conversion from nullptr.
constexpr	StringRef (const char *Str LLVM_LIFETIME_BOUND)
	Construct a string ref from a cstring.
constexpr	StringRef (const char *data LLVM_LIFETIME_BOUND, size_t length)
	Construct a string ref from a pointer and length.
	StringRef (const std::string &Str)
	Construct a string ref from an std::string.
constexpr	StringRef (std::string_view Str)
	Construct a string ref from an std::string_view.
Iterators
iterator	begin () const
iterator	end () const
reverse_iterator	rbegin () const
reverse_iterator	rend () const
const unsigned char *	bytes_begin () const
const unsigned char *	bytes_end () const
iterator_range< const unsigned char * >	bytes () const
String Operations
constexpr const char *	data () const
	data - Get a pointer to the start of the string (which may not be null terminated).
constexpr bool	empty () const
	empty - Check if the string is empty.
constexpr size_t	size () const
	size - Get the string size.
char	front () const
	front - Get the first character in the string.
char	back () const
	back - Get the last character in the string.
template<typename Allocator>
StringRef	copy (Allocator &A) const
bool	equals_insensitive (StringRef RHS) const
	Check for string equality, ignoring case.
int	compare (StringRef RHS) const
	compare - Compare two strings; the result is negative, zero, or positive if this string is lexicographically less than, equal to, or greater than the RHS.
LLVM_ABI int	compare_insensitive (StringRef RHS) const
	Compare two strings, ignoring case.
LLVM_ABI int	compare_numeric (StringRef RHS) const
	compare_numeric - Compare two strings, treating sequences of digits as numbers.
LLVM_ABI unsigned	edit_distance (StringRef Other, bool AllowReplacements=true, unsigned MaxEditDistance=0) const
	Determine the edit distance between this string and another string.
LLVM_ABI unsigned	edit_distance_insensitive (StringRef Other, bool AllowReplacements=true, unsigned MaxEditDistance=0) const
std::string	str () const
	str - Get the contents as an std::string.
LLVM_ABI std::string	lower () const
LLVM_ABI std::string	upper () const
	Convert the given ASCII string to uppercase.
Operator Overloads
char	operator[] (size_t Index) const
template<typename T>
std::enable_if_t< std::is_same< T, std::string >::value, StringRef > &	operator= (T &&Str)=delete
	Disallow accidental assignment from a temporary std::string.
Type Conversions
constexpr	operator std::string_view () const
String Predicates
bool	starts_with (StringRef Prefix) const
	Check if this string starts with the given Prefix.
bool	starts_with (char Prefix) const
LLVM_ABI bool	starts_with_insensitive (StringRef Prefix) const
	Check if this string starts with the given Prefix, ignoring case.
bool	ends_with (StringRef Suffix) const
	Check if this string ends with the given Suffix.
bool	ends_with (char Suffix) const
LLVM_ABI bool	ends_with_insensitive (StringRef Suffix) const
	Check if this string ends with the given Suffix, ignoring case.
String Searching
size_t	find (char C, size_t From=0) const
	Search for the first character C in the string.
LLVM_ABI size_t	find_insensitive (char C, size_t From=0) const
	Search for the first character C in the string, ignoring case.
size_t	find_if (function_ref< bool(char)> F, size_t From=0) const
	Search for the first character satisfying the predicate F.
size_t	find_if_not (function_ref< bool(char)> F, size_t From=0) const
	Search for the first character not satisfying the predicate F.
LLVM_ABI size_t	find (StringRef Str, size_t From=0) const
	Search for the first string Str in the string.
LLVM_ABI size_t	find_insensitive (StringRef Str, size_t From=0) const
	Search for the first string Str in the string, ignoring case.
size_t	rfind (char C, size_t From=npos) const
	Search for the last character C in the string.
LLVM_ABI size_t	rfind_insensitive (char C, size_t From=npos) const
	Search for the last character C in the string, ignoring case.
LLVM_ABI size_t	rfind (StringRef Str) const
	Search for the last string Str in the string.
LLVM_ABI size_t	rfind_insensitive (StringRef Str) const
	Search for the last string Str in the string, ignoring case.
size_t	find_first_of (char C, size_t From=0) const
	Find the first character in the string that is C, or npos if not found.
LLVM_ABI size_t	find_first_of (StringRef Chars, size_t From=0) const
	Find the first character in the string that is in Chars, or npos if not found.
LLVM_ABI size_t	find_first_not_of (char C, size_t From=0) const
	Find the first character in the string that is not C or npos if not found.
LLVM_ABI size_t	find_first_not_of (StringRef Chars, size_t From=0) const
	Find the first character in the string that is not in the string Chars, or npos if not found.
size_t	find_last_of (char C, size_t From=npos) const
	Find the last character in the string that is C, or npos if not found.
LLVM_ABI size_t	find_last_of (StringRef Chars, size_t From=npos) const
	Find the last character in the string that is in C, or npos if not found.
LLVM_ABI size_t	find_last_not_of (char C, size_t From=npos) const
	Find the last character in the string that is not C, or npos if not found.
LLVM_ABI size_t	find_last_not_of (StringRef Chars, size_t From=npos) const
	Find the last character in the string that is not in Chars, or npos if not found.
bool	contains (StringRef Other) const
	Return true if the given string is a substring of *this, and false otherwise.
bool	contains (char C) const
	Return true if the given character is contained in *this, and false otherwise.
bool	contains_insensitive (StringRef Other) const
	Return true if the given string is a substring of *this, and false otherwise.
bool	contains_insensitive (char C) const
	Return true if the given character is contained in *this, and false otherwise.
Helpful Algorithms
size_t	count (char C) const
	Return the number of occurrences of C in the string.
LLVM_ABI size_t	count (StringRef Str) const
	Return the number of non-overlapped occurrences of Str in the string.
template<typename T>
bool	getAsInteger (unsigned Radix, T &Result) const
	Parse the current string as an integer of the specified radix.
template<typename T>
bool	consumeInteger (unsigned Radix, T &Result)
	Parse the current string as an integer of the specified radix.
LLVM_ABI bool	getAsInteger (unsigned Radix, APInt &Result) const
	Parse the current string as an integer of the specified Radix, or of an autosensed radix if the Radix given is 0.
LLVM_ABI bool	consumeInteger (unsigned Radix, APInt &Result)
	Parse the current string as an integer of the specified Radix.
LLVM_ABI bool	getAsDouble (double &Result, bool AllowInexact=true) const
	Parse the current string as an IEEE double-precision floating point value.
Substring Operations
constexpr StringRef	substr (size_t Start, size_t N=npos) const
	Return a reference to the substring from [Start, Start + N).
StringRef	take_front (size_t N=1) const
	Return a StringRef equal to 'this' but with only the first N elements remaining.
StringRef	take_back (size_t N=1) const
	Return a StringRef equal to 'this' but with only the last N elements remaining.
StringRef	take_while (function_ref< bool(char)> F) const
	Return the longest prefix of 'this' such that every character in the prefix satisfies the given predicate.
StringRef	take_until (function_ref< bool(char)> F) const
	Return the longest prefix of 'this' such that no character in the prefix satisfies the given predicate.
StringRef	drop_front (size_t N=1) const
	Return a StringRef equal to 'this' but with the first N elements dropped.
StringRef	drop_back (size_t N=1) const
	Return a StringRef equal to 'this' but with the last N elements dropped.
StringRef	drop_while (function_ref< bool(char)> F) const
	Return a StringRef equal to 'this', but with all characters satisfying the given predicate dropped from the beginning of the string.
StringRef	drop_until (function_ref< bool(char)> F) const
	Return a StringRef equal to 'this', but with all characters not satisfying the given predicate dropped from the beginning of the string.
bool	consume_front (StringRef Prefix)
	Returns true if this StringRef has the given prefix and removes that prefix.
bool	consume_front_insensitive (StringRef Prefix)
	Returns true if this StringRef has the given prefix, ignoring case, and removes that prefix.
bool	consume_back (StringRef Suffix)
	Returns true if this StringRef has the given suffix and removes that suffix.
bool	consume_back_insensitive (StringRef Suffix)
	Returns true if this StringRef has the given suffix, ignoring case, and removes that suffix.
StringRef	slice (size_t Start, size_t End) const
	Return a reference to the substring from [Start, End).
std::pair< StringRef, StringRef >	split (char Separator) const
	Split into two substrings around the first occurrence of a separator character.
std::pair< StringRef, StringRef >	split (StringRef Separator) const
	Split into two substrings around the first occurrence of a separator string.
std::pair< StringRef, StringRef >	rsplit (StringRef Separator) const
	Split into two substrings around the last occurrence of a separator string.
LLVM_ABI void	split (SmallVectorImpl< StringRef > &A, StringRef Separator, int MaxSplit=-1, bool KeepEmpty=true) const
	Split into substrings around the occurrences of a separator string.
LLVM_ABI void	split (SmallVectorImpl< StringRef > &A, char Separator, int MaxSplit=-1, bool KeepEmpty=true) const
	Split into substrings around the occurrences of a separator character.
std::pair< StringRef, StringRef >	rsplit (char Separator) const
	Split into two substrings around the last occurrence of a separator character.
StringRef	ltrim (char Char) const
	Return string with consecutive Char characters starting from the the left removed.
StringRef	ltrim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the left removed.
StringRef	rtrim (char Char) const
	Return string with consecutive Char characters starting from the right removed.
StringRef	rtrim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the right removed.
StringRef	trim (char Char) const
	Return string with consecutive Char characters starting from the left and right removed.
StringRef	trim (StringRef Chars=" \t\n\v\f\r") const
	Return string with consecutive characters in Chars starting from the left and right removed.
StringRef	detectEOL () const
	Detect the line ending style of the string.

Static Public Attributes
static constexpr size_t	npos = ~size_t(0)

Detailed Description

StringRef - Represent a constant reference to a string, i.e.

a character array and a length, which need not be null terminated.

This class does not own the string data, it is expected to be used in situations where the character data resides in some other buffer, whose lifetime extends past that of the StringRef. For this reason, it is not in general safe to store a StringRef.

Definition at line 55 of file StringRef.h.

Member Typedef Documentation

const_iterator

using llvm::StringRef::const_iterator = const char *

Definition at line 60 of file StringRef.h.

const_reverse_iterator

using llvm::StringRef::const_reverse_iterator = std::reverse_iterator<const_iterator>

Definition at line 64 of file StringRef.h.

iterator

using llvm::StringRef::iterator = const char *

Definition at line 59 of file StringRef.h.

reverse_iterator

using llvm::StringRef::reverse_iterator = std::reverse_iterator<iterator>

Definition at line 63 of file StringRef.h.

size_type

using llvm::StringRef::size_type = size_t

Definition at line 61 of file StringRef.h.

value_type

using llvm::StringRef::value_type = char

Definition at line 62 of file StringRef.h.

Constructor & Destructor Documentation

StringRef() [1/6]

llvm::StringRef::StringRef ( )

default

Construct an empty string ref.

Referenced by compare(), compare_insensitive(), compare_numeric(), consume_back(), consume_back_insensitive(), consume_front(), consume_front_insensitive(), consumeInteger(), contains(), contains_insensitive(), copy(), count(), detectEOL(), drop_back(), drop_front(), drop_until(), drop_while(), edit_distance_insensitive(), ends_with(), ends_with_insensitive(), equals_insensitive(), find(), find_first_not_of(), find_first_of(), find_if(), find_insensitive(), find_last_not_of(), find_last_of(), getAsInteger(), ltrim(), ltrim(), rfind(), rfind_insensitive(), rsplit(), rsplit(), rtrim(), rtrim(), slice(), split(), split(), split(), split(), starts_with(), starts_with_insensitive(), substr(), take_back(), take_front(), take_until(), take_while(), trim(), and trim().

StringRef() [2/6]

llvm::StringRef::StringRef ( std::nullptr_t )

delete

Disable conversion from nullptr.

This prevents things like if (S == nullptr)

StringRef() [3/6]

llvm::StringRef::StringRef ( const char *Str LLVM_LIFETIME_BOUND )

inlineconstexpr

Construct a string ref from a cstring.

Definition at line 92 of file StringRef.h.

References else, if(), and LLVM_LIFETIME_BOUND.

StringRef() [4/6]

llvm::StringRef::StringRef ( const char *data LLVM_LIFETIME_BOUND, size_t length )

inlineconstexpr

Construct a string ref from a pointer and length.

Definition at line 104 of file StringRef.h.

References data(), and LLVM_LIFETIME_BOUND.

StringRef() [5/6]

llvm::StringRef::StringRef ( const std::string & Str )

inline

Construct a string ref from an std::string.

Definition at line 109 of file StringRef.h.

References data().

StringRef() [6/6]

llvm::StringRef::StringRef ( std::string_view Str )

inlineconstexpr

Construct a string ref from an std::string_view.

Definition at line 113 of file StringRef.h.

References data(), and size().

Member Function Documentation

back()

char llvm::StringRef::back ( ) const

inlinenodiscard

back - Get the last character in the string.

Definition at line 163 of file StringRef.h.

References assert(), data, empty(), and size().

Referenced by llvm::ELFYAML::dropUniqueSuffix(), llvm::SystemZHLASMAsmStreamer::EmitComment(), ends_with(), FindFirstMatchingPrefix(), llvm::getObjCNamesIfSelector(), getQualifiedNameIndex(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), handleCompressedSection(), llvm::yaml::needsQuotes(), and llvm::object::ExportEntry::otherName().

begin()

iterator llvm::StringRef::begin ( ) const

inline

Definition at line 120 of file StringRef.h.

References data.

Referenced by llvm::sys::path::append(), llvm::MDString::begin(), llvm::yaml::BlockScalarNode::BlockScalarNode(), bytes_begin(), chopOneUTF32(), llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertUTF8ToUTF16String(), copy(), llvm::APInt::getBitsNeeded(), llvm::sys::detail::getHostCPUNameForPowerPC(), getHostID(), llvm::object::Archive::Symbol::getName(), llvm::object::Archive::getNumberOfSymbols(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::object::COFFObjectFile::getRelocationTypeName(), llvm::object::MachOObjectFile::getRelocationTypeName(), llvm::object::WasmObjectFile::getRelocationTypeName(), llvm::object::XCOFFObjectFile::getRelocationTypeName(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::TextInstrProfReader::hasFormat(), llvm::Timer::init(), llvm::object::DirectX::Signature::initialize(), llvm::pdb::NamedStreamMap::load(), lower(), llvm::object::MachOUniversalBinary::MachOUniversalBinary(), llvm::sys::fs::make_absolute(), llvm::SmallString< 0 >::operator+=(), llvm::object::Archive::Child::operator==(), parseMaybeMangledName(), percentDecode(), readInteger(), readStruct(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), rend(), llvm::sys::path::replace_extension(), llvm::RewriteBuffer::ReplaceText(), llvm::yaml::ScalarNode::ScalarNode(), llvm::EngineBuilder::setMArch(), llvm::EngineBuilder::setMCPU(), llvm::TimerGroup::setName(), llvm::sys::unicode::startsWith(), llvm::object::Archive::symbol_begin(), and upper().

bytes()

iterator_range< const unsigned char * > llvm::StringRef::bytes ( ) const

inline

Definition at line 138 of file StringRef.h.

References bytes_begin(), bytes_end(), and llvm::make_range().

Referenced by llvm::djbHash().

bytes_begin()

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

inline

Definition at line 132 of file StringRef.h.

References begin().

Referenced by bytes(), llvm::MDString::bytes_begin(), loadObj(), promoteToConstantPool(), llvm::readAndDecodeStrings(), llvm::xray::readBinaryFormatHeader(), llvm::orc::ELFDebugObjectSection< ELFT >::validateInBounds(), and llvm::object::WasmObjectFile::WasmObjectFile().

bytes_end()

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

inline

Definition at line 135 of file StringRef.h.

References end().

Referenced by bytes(), llvm::MDString::bytes_end(), llvm::object::ELFFile< ELFT >::getDynSymtabSize(), loadObj(), promoteToConstantPool(), llvm::readAndDecodeStrings(), and llvm::orc::ELFDebugObjectSection< ELFT >::validateInBounds().

compare()

int llvm::StringRef::compare ( StringRef RHS ) const

inlinenodiscard

compare - Compare two strings; the result is negative, zero, or positive if this string is lexicographically less than, equal to, or greater than the RHS.

Definition at line 187 of file StringRef.h.

References data, RHS, size(), and StringRef().

Referenced by llvm::AttributeImpl::cmp(), llvm::SmallString< 0 >::compare(), and compareNames().

compare_insensitive()

int StringRef::compare_insensitive ( StringRef RHS ) const

nodiscard

Compare two strings, ignoring case.

Definition at line 37 of file StringRef.cpp.

References ascii_strncasecmp(), size(), StringRef(), and take_front().

Referenced by llvm::SmallString< 0 >::compare_insensitive(), equals_insensitive(), and llvm::DetectRoundChange::runOnMachineFunction().

compare_numeric()

int StringRef::compare_numeric ( StringRef RHS ) const

nodiscard

compare_numeric - Compare two strings, treating sequences of digits as numbers.

compare_numeric - Compare strings, handle embedded numbers.

Definition at line 62 of file StringRef.cpp.

References data(), I, llvm::isDigit(), size(), and StringRef().

Referenced by llvm::SmallString< 0 >::compare_numeric(), and llvm::LessRecord::operator()().

consume_back()

bool llvm::StringRef::consume_back ( StringRef Suffix )

inline

Returns true if this StringRef has the given suffix and removes that suffix.

Definition at line 665 of file StringRef.h.

References ends_with(), size(), StringRef(), and substr().

Referenced by llvm::Triple::getEnvironmentVersionString(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::SPIRV::parseBuiltinCallArgumentType(), and llvm::VFABI::tryDemangleForVFABI().

consume_back_insensitive()

bool llvm::StringRef::consume_back_insensitive ( StringRef Suffix )

inline

Returns true if this StringRef has the given suffix, ignoring case, and removes that suffix.

Definition at line 675 of file StringRef.h.

References ends_with_insensitive(), size(), StringRef(), and substr().

consume_front()

bool llvm::StringRef::consume_front ( StringRef Prefix )

inline

Returns true if this StringRef has the given prefix and removes that prefix.

Definition at line 645 of file StringRef.h.

References starts_with(), StringRef(), and substr().

Referenced by FindCheckType(), getAbsolutePath(), llvm::Triple::getEnvironmentVersionString(), getLiteralSectionName(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::Triple::getOSVersion(), llvm::GlobPattern::match(), parseAMDGPUAtomicOptimizerStrategy(), llvm::RISCVISAInfo::parseArchString(), llvm::SPIRV::parseBuiltinCallArgumentType(), parseFilePathFromURI(), parseMagic(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), parseReplacementItem(), llvm::lsp::JSONTransportInputOverFile::readStandardMessage(), llvm::MCContext::setGenDwarfRootFile(), llvm::VFABI::tryDemangleForVFABI(), llvm::VersionTuple::tryParse(), and uriFromAbsolutePath().

consume_front_insensitive()

bool llvm::StringRef::consume_front_insensitive ( StringRef Prefix )

inline

Returns true if this StringRef has the given prefix, ignoring case, and removes that prefix.

Definition at line 655 of file StringRef.h.

References starts_with_insensitive(), StringRef(), and substr().

consumeInteger() [1/2]

bool StringRef::consumeInteger	(	unsigned	Radix,
		APInt &	Result )

Parse the current string as an integer of the specified Radix.

If Radix is specified as zero, this does radix autosensing using extended C rules: 0 is octal, 0x is hex, 0b is binary.

If the string does not begin with a number of the specified radix, this returns true to signify the error. The string is considered erroneous if empty. The portion of the string representing the discovered numeric value is removed from the beginning of the string.

Definition at line 507 of file StringRef.cpp.

References assert(), llvm::BitWidth, llvm::getAutoSenseRadix(), size(), and StringRef().

consumeInteger() [2/2]

template<typename T>

bool llvm::StringRef::consumeInteger ( unsigned Radix, T & Result )

inline

Parse the current string as an integer of the specified radix.

If Radix is specified as zero, this does radix autosensing using extended C rules: 0 is octal, 0x is hex, 0b is binary.

If the string does not begin with a number of the specified radix, this returns true to signify the error. The string is considered erroneous if empty or if it overflows T. The portion of the string representing the discovered numeric value is removed from the beginning of the string.

Definition at line 509 of file StringRef.h.

References llvm::consumeSignedInteger(), llvm::consumeUnsignedInteger(), and T.

Referenced by llvm::AMDGPUMachineFunction::AMDGPUMachineFunction(), FindCheckType(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::yaml::ScalarTraits< FrameIndex >::input(), llvm::Pattern::parseNumericSubstitutionBlock(), parseReplacementItem(), llvm::AMDGPUPALMetadata::setFromString(), and llvm::SIMachineFunctionInfo::SIMachineFunctionInfo().

contains() [1/2]

bool llvm::StringRef::contains ( char C ) const

inlinenodiscard

Return true if the given character is contained in *this, and false otherwise.

Definition at line 440 of file StringRef.h.

References llvm::CallingConv::C, find_first_of(), and npos.

contains() [2/2]

bool llvm::StringRef::contains ( StringRef Other ) const

inlinenodiscard

Return true if the given string is a substring of *this, and false otherwise.

Definition at line 434 of file StringRef.h.

References find(), npos, llvm::Other, and StringRef().

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), llvm::AsmPrinter::emitPCSections(), llvm::generateSampleImageInst(), llvm::generateVectorLoadStoreInst(), llvm::Triple::getEnvironmentVersionString(), llvm::object::getNameType(), llvm::MCContext::getOrCreateSymbol(), llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV4::getValueKind(), llvm::object::isDecorated(), llvm::offloading::amdgpu::isImageCompatibleWithEnv(), llvm::isPunct(), isSmallDataSection(), llvm::gsym::operator<<(), parseBraceExpansions(), llvm::SPIRV::parseBuiltinTypeNameToTargetExtType(), llvm::Pattern::parsePattern(), printSymbolizedStackTrace(), and sanitizeFunctionName().

contains_insensitive() [1/2]

bool llvm::StringRef::contains_insensitive ( char C ) const

inlinenodiscard

Return true if the given character is contained in *this, and false otherwise.

Definition at line 452 of file StringRef.h.

References llvm::CallingConv::C, find_insensitive(), and npos.

contains_insensitive() [2/2]

bool llvm::StringRef::contains_insensitive ( StringRef Other ) const

inlinenodiscard

Return true if the given string is a substring of *this, and false otherwise.

Definition at line 446 of file StringRef.h.

References find_insensitive(), npos, llvm::Other, and StringRef().

Referenced by llvm::generateReadImageInst().

copy()

template<typename Allocator>

StringRef llvm::StringRef::copy ( Allocator & A ) const

inlinenodiscard

Definition at line 170 of file StringRef.h.

References A(), Allocator, begin(), empty(), end(), size(), and StringRef().

Referenced by llvm::yaml::Document::parseBlockNode().

count() [1/2]

size_t llvm::StringRef::count ( char C ) const

inlinenodiscard

Return the number of occurrences of C in the string.

Definition at line 461 of file StringRef.h.

References llvm::CallingConv::C, llvm::Count, data, I, and size().

Referenced by llvm::SmallString< 0 >::count(), llvm::SmallString< 0 >::count(), FindFirstMatchingPrefix(), getGridValue(), llvm::HexagonInstrInfo::getInlineAsmLength(), llvm::DOTGraphTraits< DOTFuncMSSAInfo * >::getNodeLabel(), and llvm::yaml::MappingTraits< Argument >::mapping().

count() [2/2]

size_t StringRef::count

(

StringRef

Str

)

const

Return the number of non-overlapped occurrences of Str in the string.

count - Return the number of non-overlapped occurrences of

• Str in the string.

Definition at line 372 of file StringRef.cpp.

References llvm::Count, find(), N, npos, and StringRef().

data()

const char * llvm::StringRef::data ( ) const

inlinenodiscardconstexpr

data - Get a pointer to the start of the string (which may not be null terminated).

Definition at line 148 of file StringRef.h.

Referenced by llvm::msgpack::Document::addString(), annotateAllFunctions(), appendGlobalSymbolTableInfo(), llvm::object::BigArchive::BigArchive(), llvm::CachedHashString::CachedHashString(), llvm::FileCheckString::CheckDag(), llvm::FileCheckString::CheckNext(), llvm::FileCheckString::CheckSame(), compare_numeric(), constructSegment(), constructSymbolEntry(), llvm::objcopy::coff::createGnuDebugLinkSectionContents(), llvm::jitlink::createLinkGraphFromELFObject(), createMemberHeaderParseError(), llvm::MachO::createRegexFromGlob(), llvm::object::CompressedOffloadBundle::decompress(), llvm::DWARFDebugPubTable::dump(), llvm::DWARFDebugLoclists::dumpRawEntry(), edit_distance(), edit_distance_insensitive(), llvm::BitstreamWriter::emitBlob(), llvm::DWARFYAML::emitDebugAbbrev(), llvm::DWARFYAML::emitDebugLine(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::emitFDE(), ends_with(), llvm::cl::Option::error(), ExpandBasePaths(), llvm::SelectionDAG::expandMultipleResultFPLibCall(), llvm::DWARFListType< ListEntryType >::extract(), find(), find_first_not_of(), find_first_of(), find_last_not_of(), find_last_not_of(), find_last_of(), FindFirstMatchingPrefix(), llvm::json::fixUTF8(), llvm::RuntimeDyldCOFFAArch64::generateRelocationStub(), llvm::RuntimeDyldCOFFX86_64::generateRelocationStub(), llvm::ErrorDiagnostic::get(), llvm::irsymtab::storage::Range< T >::get(), llvm::irsymtab::storage::Str::get(), llvm::DataExtractor::getCStr(), llvm::DataExtractor::getCStr(), llvm::LTOModule::getDependentLibrary(), llvm::objcopy::elf::SRecord::getHeader(), llvm::HexagonInstrInfo::getInlineAsmLength(), getInstructionID(), llvm::dwarf_linker::parallel::SectionDescriptor::getIntVal(), llvm::NVPTXRegisterInfo::getName(), llvm::object::Elf_Sym_Impl< ELFT >::getName(), getNextLoadCommandInfo(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::PPCTargetLowering::getRegForInlineAsmConstraint(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::RuntimeDyldMachO::getRelocationValueRef(), llvm::lto::LTO::getRuntimeLibcallSymbols(), llvm::object::ELFFile< ELFT >::getSectionName(), getUUID(), llvm::object::ELFFile< ELFT >::getVersionDependencies(), gsiRecordCmp(), llvm::dwarf_linker::guessDeveloperDir(), isAsmComment(), llvm::json::isUTF8(), LLVMGetDebugLocDirectory(), LLVMGetDebugLocFilename(), LLVMGetInlineAsmAsmString(), LLVMGetInlineAsmConstraintString(), LLVMGetNamedMetadataName(), llvm::LegalizerHelper::lowerReadWriteRegister(), llvm::remarks::magicToFormat(), llvm::Pattern::match(), PrefixMatcher::match(), llvm::remarks::parseFormat(), llvm::remarks::parseHotnessThresholdOption(), parseMaybeMangledName(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), parseRD(), parseStrTabSize(), parseTypeIdSummaryRecord(), parseV2DirFileTables(), parseVersion(), parseWholeProgramDevirtResolution(), llvm::X86Operand::print(), ProcessMatchResult(), llvm::RuntimeDyldELF::processRelocationRef(), llvm::irsymtab::readBitcode(), llvm::FileCheck::readCheckFile(), readCoverageMappingData(), llvm::jitlink::readTargetMachineArch(), llvm::LessRecordRegister::RecordParts::RecordParts(), llvm::Regex::Regex(), llvm::report_fatal_error(), reportError(), rfind_insensitive(), llvm::StringSaver::save(), llvm::orc::MachOBuilder< MachOTraits >::Section::Section(), llvm::orc::MachOBuilder< MachOTraits >::Segment::Segment(), llvm::orc::shared::SPSSerializationTraits< SPSString, StringRef >::serialize(), StringRef(), StringRef(), StringRef(), llvm::detail::to_float(), llvm::cl::TokenizeGNUCommandLine(), llvm::Twine::Twine(), llvm::Twine::Twine(), llvm::codeview::TypeServer2Record::TypeServer2Record(), and llvm::yaml::yaml2archive().

detectEOL()

StringRef llvm::StringRef::detectEOL ( ) const

inlinenodiscard

Detect the line ending style of the string.

If the string contains a line ending, return the line ending character sequence that is detected. Otherwise return '
' for unix line endings.

Returns

- The line ending character sequence.

Definition at line 840 of file StringRef.h.

References data, find(), npos, size(), and StringRef().

drop_back()

StringRef llvm::StringRef::drop_back ( size_t N = 1 ) const

inlinenodiscard

Return a StringRef equal to 'this' but with the last N elements dropped.

Definition at line 626 of file StringRef.h.

References assert(), N, size(), StringRef(), and substr().

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::AMDGPU::getArchFamilyNameAMDGCN(), llvm::getObjCNamesIfSelector(), llvm::yaml::Document::parseBlockNode(), llvm::omp::prettifyFunctionName(), rtrim(), rtrim(), and take_front().

drop_front()

StringRef llvm::StringRef::drop_front ( size_t N = 1 ) const

inlinenodiscard

Return a StringRef equal to 'this' but with the first N elements dropped.

Definition at line 619 of file StringRef.h.

References assert(), N, size(), StringRef(), and substr().

Referenced by llvm::symbolize::advanceTo(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::ELFAttrs::attrTypeAsString(), llvm::ELFAttrs::attrTypeFromString(), chopOneUTF32(), llvm::consumeSignedInteger(), llvm::object::OffloadBundleURI::createFileURI(), llvm::omp::deconstructOpenMPKernelName(), extractOffloadBundle(), find_if(), FindCheckType(), FindFirstMatchingPrefix(), llvm::AArch64::getArchExtFeature(), llvm::objcopy::elf::IHexRecord::getChecksum(), llvm::cl::getCompilerBuildConfig(), getDXILArchNameFromShaderModel(), llvm::getFuncNameWithoutPrefix(), getLiteralSectionName(), llvm::memprof::getMemprofOptionsSymbolName(), llvm::getObjCNamesIfSelector(), llvm::codeview::getSymbolName(), llvm::object::ELFFile< ELFT >::getVersionDependencies(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::yaml::isNumeric(), ltrim(), ltrim(), llvm::RISCVISAInfo::parseArchString(), llvm::yaml::parseBool(), llvm::DebugCounter::parseChunks(), llvm::AArch64::ExtensionSet::parseModifier(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parseNumericSubstitutionBlock(), parseScalarValue(), parseStrTabSize(), parseSVERegAsConstraint(), llvm::MachO::parseSymbol(), parseThunkName(), parseVersion(), popFront(), printSourceLine(), llvm::TextCodeGenDataReader::read(), llvm::FileCheck::readCheckFile(), llvm::sys::path::remove_dots(), llvm::MCContext::setGenDwarfRootFile(), splitLiteralAndReplacement(), take_back(), llvm::orc::DLLImportDefinitionGenerator::tryToGenerate(), upgradeLoopTag(), and uriFromAbsolutePath().

drop_until()

StringRef llvm::StringRef::drop_until ( function_ref< bool(char)> F ) const

inlinenodiscard

Return a StringRef equal to 'this', but with all characters not satisfying the given predicate dropped from the beginning of the string.

Definition at line 639 of file StringRef.h.

References F, find_if(), StringRef(), and substr().

drop_while()

StringRef llvm::StringRef::drop_while ( function_ref< bool(char)> F ) const

inlinenodiscard

Return a StringRef equal to 'this', but with all characters satisfying the given predicate dropped from the beginning of the string.

Definition at line 633 of file StringRef.h.

References F, find_if_not(), StringRef(), and substr().

edit_distance()

unsigned StringRef::edit_distance ( llvm::StringRef Other, bool AllowReplacements = true, unsigned MaxEditDistance = 0 ) const

nodiscard

Determine the edit distance between this string and another string.

Parameters

Other	the string to compare this string against.
AllowReplacements	whether to allow character replacements (change one character into another) as a single operation, rather than as two operations (an insertion and a removal).
MaxEditDistance	If non-zero, the maximum edit distance that this routine is allowed to compute. If the edit distance will exceed that maximum, returns MaxEditDistance+1.

Returns

the minimum number of character insertions, removals, or (if AllowReplacements is true) replacements needed to transform one of the given strings into the other. If zero, the strings are identical.

Definition at line 93 of file StringRef.cpp.

References llvm::ArrayRef(), llvm::ComputeEditDistance(), data(), llvm::Other, and size().

Referenced by LookupNearestOption().

edit_distance_insensitive()

unsigned llvm::StringRef::edit_distance_insensitive ( StringRef Other, bool AllowReplacements = true, unsigned MaxEditDistance = 0 ) const

nodiscard

Definition at line 101 of file StringRef.cpp.

References llvm::ArrayRef(), llvm::ComputeMappedEditDistance(), data(), llvm::Other, size(), StringRef(), and llvm::toLower().

empty()

bool llvm::StringRef::empty ( ) const

inlinenodiscardconstexpr

empty - Check if the string is empty.

Definition at line 151 of file StringRef.h.

References size().

Referenced by addMappingsFromTLI(), llvm::MachO::InterfaceFile::addRPath(), llvm::MipsTargetLowering::AdjustInstrPostInstrSelection(), llvm::AMDGPUMachineFunction::AMDGPUMachineFunction(), llvm::analyzeImportedModule(), llvm::dwarf_linker::parallel::CompileUnit::analyzeImportedModule(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::object::applyNameType(), back(), buildDWODescription(), llvm::caseFoldingDjbHash(), llvm::checkDebugInfoMetadata(), chopOneUTF32(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::cloneAndEmitDebugFrame(), collectAddressSymbols(), llvm::InlineAsm::collectAsmStrs(), collectMetadataInfo(), llvm::DIEHash::computeCUSignature(), llvm::ARM::computeTargetABI(), llvm::LoongArchABI::computeTargetABI(), llvm::MipsABIInfo::computeTargetABI(), llvm::RISCVABI::computeTargetABI(), llvm::DwarfUnit::constructTypeDIE(), llvm::consumeUnsignedInteger(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertToCamelFromSnakeCase(), llvm::convertToSnakeFromCamelCase(), llvm::convertUTF8ToUTF16String(), copy(), llvm::memprof::RawMemProfReader::create(), llvm::sampleprof::SampleProfileReader::create(), llvm::vfs::RedirectingFileSystem::create(), llvm::sys::fs::create_directories(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::dxil::ResourceTypeInfo::createElementStruct(), createProfileFileNameVar(), llvm::createProfileFileNameVar(), llvm::createSanitizerCtorAndInitFunctions(), llvm::sys::fs::createTemporaryFile(), llvm::declareSanitizerInitFunction(), llvm::FileCheckPatternContext::defineCmdlineVariables(), llvm::remarks::detectFormat(), llvm::ELFYAML::dropUniqueSuffix(), llvm::gsym::GsymReader::dump(), llvm::DWARFDebugLoclists::dumpRawEntry(), llvm::emitAMDGPUPrintfCall(), emitCATTR(), llvm::SystemZHLASMAsmStreamer::EmitComment(), emitComments(), EmitGenDwarfAbbrev(), EmitGenDwarfInfo(), llvm::TargetLoweringObjectFileMachO::emitModuleMetadata(), llvm::ARMTargetStreamer::emitTargetAttributes(), ends_with(), llvm::cl::Option::error(), ExpandBasePaths(), llvm::memprof::extractCallsFromIR(), llvm::AMDGPU::fillAMDGPUFeatureMap(), find_if(), FindFirstMatchingPrefix(), llvm::sampleprof::FunctionSamples::findFunctionSamplesAt(), llvm::finishBuildOpDecorate(), llvm::format_provider< llvm::lsp::Position >::format(), llvm::format_provider< std::chrono::duration< Rep, Period > >::format(), llvm::JITSymbolFlags::fromGlobalValue(), front(), llvm::Attribute::get(), llvm::get_stable_name(), llvm::get_threadpool_strategy(), getAbsolutePath(), llvm::AMDGPU::getArchFamilyNameAMDGCN(), llvm::ARM::getARMCPUForArch(), llvm::DIMacroNode::getCanonicalMDString(), llvm::DINode::getCanonicalMDString(), llvm::objcopy::elf::IHexRecord::getChecksum(), llvm::dwarf_linker::classic::DeclContextTree::getChildDeclContext(), llvm::MCContext::getCOFFSection(), llvm::dwarf_linker::parallel::CompileUnit::getDirAndFilenameFromLineTable(), llvm::MCContext::getELFSection(), getExtensionVersion(), getFeatures(), llvm::DWARFDebugLine::Prologue::getFileNameByIndex(), llvm::getFnAttrParsedVector(), llvm::getFuncNameWithoutPrefix(), llvm::gsym::GsymReader::getFunctionInfoDataAtIndex(), llvm::object::AbstractArchiveMemberHeader::getGID(), llvm::GlobalValue::getGlobalIdentifier(), getGPUOrDefault(), llvm::NVPTXTTIImpl::getInstructionCost(), llvm::AMDGPU::getIntegerVecAttribute(), llvm::X86TargetLowering::getIRStackGuard(), llvm::TargetLibraryInfoImpl::getLibFunc(), llvm::object::MachOObjectFile::getLibraryShortNameByIndex(), getMipsABI(), llvm::PPC::getNormalizedPPCTargetCPU(), getOpEnabled(), getOpRefinementSteps(), llvm::DwarfCompileUnit::getOrCreateCommonBlock(), llvm::DwarfCompileUnit::getOrCreateGlobalVariableDIE(), llvm::symbolize::LLVMSymbolizer::getOrCreateModuleInfo(), llvm::getOrCreateSanitizerCtorAndInitFunctions(), llvm::MCContext::getOrCreateSymbol(), getPassNameAndInstanceNum(), llvm::getPGOFuncName(), getPrettyScopeName(), llvm::MCObjectFileInfo::getPseudoProbeDescSection(), getQualifiedNameIndex(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), getSearchPaths(), llvm::TargetLoweringObjectFile::getSectionForConstant(), llvm::TargetLoweringObjectFileELF::getSectionForConstant(), getStackGuard(), llvm::getSubDirectoryPath(), llvm::M68kMCInstLower::GetSymbolFromOperand(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::lto::getThinLTOOutputFile(), llvm::MCSymbolXCOFF::getUnqualifiedName(), getUUID(), llvm::VFABI::getVectorVariantNames(), llvm::yaml::Node::getVerbatimTag(), llvm::TargetLibraryInfoImpl::getWidestVF(), handleArgs(), llvm::objcopy::coff::handleArgs(), llvm::DWARFVerifier::handleDebugAbbrev(), HandlePrefixedOrGroupedOption(), llvm::sys::path::has_extension(), llvm::sys::path::has_filename(), llvm::sys::path::has_parent_path(), llvm::sys::path::has_relative_path(), llvm::sys::path::has_root_directory(), llvm::sys::path::has_root_name(), llvm::sys::path::has_root_path(), llvm::sys::path::has_stem(), llvm::SubtargetFeatures::hasFlag(), llvm::GlobalValue::hasSection(), llvm::X86TargetLowering::hasStackProbeSymbol(), llvm::mustache::hasTextBehind(), llvm::CSKYSubtarget::initializeSubtargetDependencies(), llvm::MSP430Subtarget::initializeSubtargetDependencies(), llvm::SparcSubtarget::initializeSubtargetDependencies(), llvm::X86TargetLowering::insertSSPDeclarations(), llvm::gsym::GsymCreator::insertString(), insertWaveSizeFeature(), llvm::SampleProfileProber::instrumentOneFunc(), llvm::ELFCompactAttrParser::integerAttribute(), isCanonical(), llvm::SubtargetFeatures::isEnabled(), llvm::TargetLibraryInfoImpl::isFunctionVectorizable(), llvm::TargetLibraryInfoImpl::isFunctionVectorizable(), llvm::yaml::isNumeric(), isStructurallyValidScheme(), llvm::RISCVISAInfo::isSupportedExtensionWithVersion(), llvm::AMDGPU::SendMsg::isValidMsgOp(), llvm::AMDGPU::MTBUFFormat::isValidNfmt(), llvm::LoadAndStorePromoter::LoadAndStorePromoter(), loadBinaryFormat(), LookupNearestOption(), llvm::TargetRegistry::lookupTarget(), llvm::codeview::CodeViewRecordIO::mapStringZVectorZ(), llvm::GlobPattern::match(), PrefixMatcher::match(), llvm::yaml::needsQuotes(), llvm::Triple::normalize(), llvm::gsym::operator<<(), llvm::InterleavedRange< Range >::operator<<, optimizeNaN(), llvm::AMDGPULibFunc::parse(), llvm::DWARFDebugFrame::parse(), llvm::PassBuilder::parseAAPipeline(), llvm::MachO::parseAliasList(), parseAMDGPUAtomicOptimizerStrategy(), parseAMDGPUAttributorPassOptions(), llvm::AArch64::parseArchExtension(), llvm::RISCVISAInfo::parseArchString(), parseARMArch(), parseCC(), llvm::DebugCounter::parseChunks(), parseDebugType(), llvm::parseDenormalFPAttribute(), llvm::remarks::ParsedStringTable::ParsedStringTable(), parseInt(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), llvm::remarks::YAMLRemarkParser::parseRemark(), parseReplacementItem(), llvm::MCSectionMachO::ParseSectionSpecifier(), llvm::PassBuilder::parseSinglePassOption(), parseSubArch(), parseV2DirFileTables(), llvm::MCInstPrinter::printAnnotation(), llvm::ELFCompactAttrParser::printAttribute(), printCFI(), PrintCFIEscape(), printExtendedName(), PrintExtension(), printFile(), llvm::hlsl::rootsig::printFlags(), llvm::AMDGPUInstPrinter::printHwreg(), llvm::NVPTXInstPrinter::printMmaCode(), llvm::printOp(), llvm::cl::generic_parser_base::printOptionInfo(), RAGreedyPass::printPipeline(), llvm::AMDGPUInstPrinter::printSendMsg(), llvm::SparcELFMCAsmInfo::printSpecifierExpr(), llvm::XtensaMCAsmInfo::printSpecifierExpr(), processLoadCommands(), llvm::AttributeImpl::Profile(), llvm::irsymtab::readBitcode(), llvm::FileCheck::readCheckFile(), llvm::GCOVFile::readGCNO(), llvm::lsp::JSONTransportInputOverFile::readStandardMessage(), llvm::LessRecordRegister::RecordParts::RecordParts(), remarkAlloca(), llvm::sys::path::remove_dots(), llvm::sys::path::replace_path_prefix(), runOnFunction(), StaticDataAnnotator::runOnModule(), llvm::sampleprof::SampleContext::SampleContext(), sanitizeFunctionName(), llvm::dwarf_linker::parallel::AcceleratorRecordsSaver::save(), llvm::StringSaver::save(), saveTempBitcode(), llvm::yaml::Output::scalarString(), llvm::Hexagon_MC::selectHexagonCPU(), llvm::orc::shared::SPSSerializationTraits< SPSString, StringRef >::serialize(), llvm::MachO::InterfaceFile::setFromBinaryAttrs(), llvm::codegen::setFunctionAttributes(), llvm::MCContext::setGenDwarfRootFile(), llvm::GlobalValue::setPartition(), llvm::sandboxir::PassManager< ParentPass, ContainedPass >::setPassPipeline(), llvm::GlobalObject::setSection(), llvm::lto::setupStatsFile(), llvm::VFABI::setVectorVariantNames(), shouldPrintOption(), llvm::MachO::shouldSkipSymLink(), llvm::SIMachineFunctionInfo::SIMachineFunctionInfo(), llvm::SIModeRegisterDefaults::SIModeRegisterDefaults(), llvm::SPIRVTranslate(), split(), split(), splitLiteralAndReplacement(), starts_with(), llvm::sys::unicode::startsWith(), llvm::ELFCompactAttrParser::stringAttribute(), llvm::Regex::sub(), llvm::BTFParser::symbolize(), llvm::symbolize::toJSON(), llvm::InlineAdvisorAnalysis::Result::tryCreate(), llvm::VFABI::tryDemangleForVFABI(), llvm::MCDwarfLineTableHeader::tryGetFile(), llvm::VersionTuple::tryParse(), updateAndRemoveSymbols(), llvm::UpgradeAttributes(), upgradeNVVMFnVectorAttr(), uriFromAbsolutePath(), llvm::InlineAsm::verify(), verifyFuncBFI(), llvm::cgdata::warn(), llvm::write(), writeDWARFExpression(), llvm::ThinLTOCodeGenerator::writeGeneratedObject(), and llvm::writeStringsAndOffsets().

end()

iterator llvm::StringRef::end ( ) const

inline

Definition at line 122 of file StringRef.h.

References data, and size().

Referenced by llvm::sys::path::append(), llvm::yaml::BlockScalarNode::BlockScalarNode(), bytes_end(), llvm::FileCheckString::CheckNext(), llvm::FileCheckString::CheckSame(), chopOneUTF32(), llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::convertUTF8ToUTF16String(), copy(), llvm::MDString::end(), ends_with(), llvm::sys::detail::getHostCPUNameForPowerPC(), getHostID(), getLoadCommandInfo(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::getRecords(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::object::COFFObjectFile::getRelocationTypeName(), llvm::object::MachOObjectFile::getRelocationTypeName(), llvm::object::WasmObjectFile::getRelocationTypeName(), llvm::object::XCOFFObjectFile::getRelocationTypeName(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::Timer::init(), llvm::pdb::NamedStreamMap::load(), lower(), llvm::sys::fs::make_absolute(), parseMaybeMangledName(), parseRD(), parseRegisterNumber(), percentDecode(), rbegin(), readInteger(), readStruct(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), llvm::Regex::Regex(), llvm::sys::path::replace_extension(), llvm::RewriteBuffer::ReplaceText(), llvm::yaml::ScalarNode::ScalarNode(), llvm::EngineBuilder::setMArch(), llvm::EngineBuilder::setMCPU(), llvm::TimerGroup::setName(), llvm::sys::unicode::startsWith(), and upper().

ends_with() [1/2]

bool llvm::StringRef::ends_with ( char Suffix ) const

inlinenodiscard

Definition at line 286 of file StringRef.h.

References back(), and empty().

ends_with() [2/2]

bool llvm::StringRef::ends_with ( StringRef Suffix ) const

inlinenodiscard

Check if this string ends with the given Suffix.

Definition at line 281 of file StringRef.h.

References data(), end(), size(), and StringRef().

Referenced by llvm::DWARFTypePrinter< DieType >::appendTypeTagName(), consume_back(), llvm::X86TargetLowering::EmitKCFICheck(), llvm::SmallString< 0 >::ends_with(), getHostCPUNameForARMFromComponents(), llvm::TargetLoweringObjectFileGOFF::getModuleMetadata(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::object::BigArchiveMemberHeader::getRawName(), llvm::AMDGPU::IsaInfo::getTargetIDSettingFromFeatureString(), llvm::mustache::hasTextBehind(), isDWOSection(), isDwoSection(), llvm::MachO::isPrivateLibrary(), optimizeDoubleFP(), llvm::parseAnalysisUtilityPasses(), llvm::ARM::parseArchEndian(), llvm::SPIRV::parseBuiltinCallArgumentType(), parseSubArch(), parseSVERegAsConstraint(), llvm::omp::prettifyFunctionName(), and llvm::SimplifyTypeTestsPass::run().

ends_with_insensitive()

bool StringRef::ends_with_insensitive ( StringRef Suffix ) const

nodiscard

Check if this string ends with the given Suffix, ignoring case.

Definition at line 51 of file StringRef.cpp.

References ascii_strncasecmp(), size(), StringRef(), and take_back().

Referenced by consume_back_insensitive(), and llvm::orc::LoadAndLinkDynLibrary::operator()().

equals_insensitive()

bool llvm::StringRef::equals_insensitive ( StringRef RHS ) const

inlinenodiscard

Check for string equality, ignoring case.

Definition at line 180 of file StringRef.h.

References compare_insensitive(), RHS, size(), and StringRef().

Referenced by llvm::SmallString< 0 >::equals_insensitive(), llvm::findVCToolChainViaEnvironment(), llvm::X86TargetLowering::isInlineAsmTargetBranch(), llvm::HexagonMCInstrInfo::isOrderedDuplexPair(), rfind_insensitive(), and llvm::StrInStrNoCase().

find() [1/2]

size_t llvm::StringRef::find ( char C, size_t From = 0 ) const

inlinenodiscard

Search for the first character C in the string.

Returns

The index of the first occurrence of C, or npos if not found.

Definition at line 301 of file StringRef.h.

References llvm::CallingConv::C.

Referenced by checkLinkerOptCommand(), CommaSeparateAndAddOccurrence(), count(), llvm::SystemZHLASMAsmStreamer::EmitComment(), emitComments(), llvm::AsmPrinter::emitPCSections(), llvm::RuntimeDyldCheckerExprEval::evaluate(), llvm::ELFObjectWriter::executePostLayoutBinding(), ExpandBasePaths(), llvm::SmallString< 0 >::find(), llvm::SmallString< 0 >::find(), llvm::ReplayInlineAdvisor::getAdviceImpl(), llvm::PGOContextualProfile::getFunctionName(), llvm::NVPTXTTIImpl::getInstructionCost(), getLiteralSectionName(), llvm::getObjCNamesIfSelector(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::PassInstrumentationCallbacks::getPassNameForClassName(), llvm::object::ArchiveMemberHeader::getRawName(), llvm::codeview::DebugStringTableSubsection::getStringForId(), llvm::isSpecialPass(), llvm::lookupBuiltin(), llvm::Pattern::match(), llvm::RISCVISAInfo::parseArchString(), parseBraceExpansions(), llvm::SPIRV::parseBuiltinCallArgumentType(), llvm::SPIRV::parseBuiltinTypeNameToTargetExtType(), llvm::SPIRV::parseBuiltinTypeStr(), parseDebugType(), parseFilePathFromURI(), ParseLine(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), printSourceLine(), llvm::object::replace(), split(), split(), and llvm::Regex::sub().

find() [2/2]

size_t StringRef::find ( StringRef Str, size_t From = 0 ) const

nodiscard

Search for the first string Str in the string.

find - Search for the first string

Returns

The index of the first occurrence of Str, or npos if not found.

• Str in the string.

Returns

- The index of the first occurrence of

• Str, or npos if not found.

Definition at line 131 of file StringRef.cpp.

References data(), llvm::Last, LLVM_UNLIKELY, N, npos, Ptr, Size, size(), and StringRef().

find_first_not_of() [1/2]

StringRef::size_type StringRef::find_first_not_of ( char C, size_t From = 0 ) const

nodiscard

Find the first character in the string that is not C or npos if not found.

find_first_not_of - Find the first character in the string that is not

• C or npos if not found.

Definition at line 252 of file StringRef.cpp.

References llvm::CallingConv::C.

Referenced by llvm::SmallString< 0 >::find_first_not_of(), llvm::SmallString< 0 >::find_first_not_of(), llvm::yaml::isNumeric(), ltrim(), ltrim(), llvm::dwarf_linker::parseDebugTableName(), ParseLine(), llvm::FileCheck::readCheckFile(), llvm::sampleprof::SampleProfileReaderText::readImpl(), and llvm::Regex::sub().

find_first_not_of() [2/2]

StringRef::size_type StringRef::find_first_not_of ( StringRef Chars, size_t From = 0 ) const

nodiscard

Find the first character in the string that is not in the string Chars, or npos if not found.

find_first_not_of - Find the first character in the string that is not in the string

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 260 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, size(), and StringRef().

find_first_of() [1/2]

size_t llvm::StringRef::find_first_of ( char C, size_t From = 0 ) const

inlinenodiscard

Find the first character in the string that is C, or npos if not found.

Same as find.

Definition at line 384 of file StringRef.h.

References llvm::CallingConv::C, and find().

Referenced by contains(), llvm::GlobPattern::create(), llvm::SmallString< 0 >::find_first_of(), llvm::SmallString< 0 >::find_first_of(), llvm::generateConvertInst(), llvm::SPIRV::parseBuiltinCallArgumentType(), ParseLine(), llvm::Pattern::parsePattern(), parseScalarValue(), llvm::sys::printArg(), llvm::FileCheck::readCheckFile(), llvm::BinaryStreamReader::readCString(), llvm::sys::path::remove_dots(), and splitLiteralAndReplacement().

find_first_of() [2/2]

StringRef::size_type StringRef::find_first_of ( StringRef Chars, size_t From = 0 ) const

nodiscard

Find the first character in the string that is in Chars, or npos if not found.

find_first_of - Find the first character in the string that is in

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 238 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, size(), and StringRef().

find_if()

size_t llvm::StringRef::find_if ( function_ref< bool(char)> F, size_t From = 0 ) const

inlinenodiscard

Search for the first character satisfying the predicate F.

Returns

The index of the first character satisfying F starting from From, or npos if not found.

Definition at line 316 of file StringRef.h.

References drop_front(), empty(), F, front(), npos, size(), and StringRef().

Referenced by drop_until(), find_if_not(), find_insensitive(), and take_until().

find_if_not()

size_t llvm::StringRef::find_if_not ( function_ref< bool(char)> F, size_t From = 0 ) const

inlinenodiscard

Search for the first character not satisfying the predicate F.

Returns

The index of the first character not satisfying F starting from From, or npos if not found.

Definition at line 331 of file StringRef.h.

References F, and find_if().

Referenced by drop_while(), and take_while().

find_insensitive() [1/2]

size_t StringRef::find_insensitive ( char C, size_t From = 0 ) const

nodiscard

Search for the first character C in the string, ignoring case.

Returns

The index of the first occurrence of C, or npos if not found.

Definition at line 56 of file StringRef.cpp.

References llvm::CallingConv::C, D(), find_if(), and llvm::toLower().

Referenced by contains_insensitive(), contains_insensitive(), and llvm::Pattern::match().

find_insensitive() [2/2]

size_t StringRef::find_insensitive ( StringRef Str, size_t From = 0 ) const

nodiscard

Search for the first string Str in the string, ignoring case.

Returns

The index of the first occurrence of Str, or npos if not found.

Definition at line 192 of file StringRef.cpp.

References npos, StringRef(), and substr().

find_last_not_of() [1/2]

StringRef::size_type StringRef::find_last_not_of ( char C, size_t From = npos ) const

nodiscard

Find the last character in the string that is not C, or npos if not found.

find_last_not_of - Find the last character in the string that is not

• C, or npos if not found.

Definition at line 290 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, and size().

Referenced by parseScalarValue(), rtrim(), and rtrim().

find_last_not_of() [2/2]

StringRef::size_type StringRef::find_last_not_of ( StringRef Chars, size_t From = npos ) const

nodiscard

Find the last character in the string that is not in Chars, or npos if not found.

find_last_not_of - Find the last character in the string that is not in

Complexity: O(size() + Chars.size())

• Chars, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 301 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, size(), and StringRef().

find_last_of() [1/2]

size_t llvm::StringRef::find_last_of ( char C, size_t From = npos ) const

inlinenodiscard

Find the last character in the string that is C, or npos if not found.

Definition at line 409 of file StringRef.h.

References llvm::CallingConv::C, npos, and rfind().

Referenced by llvm::sys::path::extension(), llvm::SmallString< 0 >::find_last_of(), llvm::SmallString< 0 >::find_last_of(), llvm::SourceMgr::getLineAndColumn(), llvm::yaml::Node::getVerbatimTag(), ParseLine(), and llvm::sys::path::stem().

find_last_of() [2/2]

StringRef::size_type StringRef::find_last_of ( StringRef Chars, size_t From = npos ) const

nodiscard

Find the last character in the string that is in C, or npos if not found.

find_last_of - Find the last character in the string that is in

Complexity: O(size() + Chars.size())

• C, or npos if not found.

Note: O(size() + Chars.size())

Definition at line 276 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, size(), and StringRef().

front()

char llvm::StringRef::front ( ) const

inlinenodiscard

front - Get the first character in the string.

Definition at line 157 of file StringRef.h.

References assert(), data, and empty().

Referenced by llvm::convertToCamelFromSnakeCase(), find_if(), FindCheckType(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::codeview::VFTableRecord::getName(), getQualifiedNameIndex(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::yaml::isNumeric(), llvm::yaml::needsQuotes(), llvm::RISCVISAInfo::parseArchString(), llvm::yaml::parseBool(), llvm::PassBuilder::parsePassPipeline(), llvm::PassBuilder::parsePassPipeline(), llvm::PassBuilder::parsePassPipeline(), popFront(), llvm::sys::path::remove_dots(), llvm::MCContext::setGenDwarfRootFile(), splitLiteralAndReplacement(), and starts_with().

getAsDouble()

bool StringRef::getAsDouble	(	double &	Result,
		bool	AllowInexact = true ) const

Parse the current string as an IEEE double-precision floating point value.

The string must be a well-formed double.

If AllowInexact is false, the function will fail if the string cannot be represented exactly. Otherwise, the function only fails in case of an overflow or underflow, or an invalid floating point representation.

Definition at line 598 of file StringRef.cpp.

References llvm::errorToBool(), F, llvm::APFloatBase::opInexact, llvm::APFloatBase::opOK, and llvm::APFloatBase::rmNearestTiesToEven.

getAsInteger() [1/2]

bool StringRef::getAsInteger	(	unsigned	Radix,
		APInt &	Result ) const

Parse the current string as an integer of the specified Radix, or of an autosensed radix if the Radix given is 0.

The current value in Result is discarded, and the storage is changed to be wide enough to store the parsed integer.

Returns

true if the string does not solely consist of a valid non-empty number in the appropriate base.

APInt::fromString is superficially similar but assumes the string is well-formed in the given radix.

Definition at line 588 of file StringRef.cpp.

References StringRef().

getAsInteger() [2/2]

template<typename T>

bool llvm::StringRef::getAsInteger ( unsigned Radix, T & Result ) const

inline

Parse the current string as an integer of the specified radix.

If Radix is specified as zero, this does radix autosensing using extended C rules: 0 is octal, 0x is hex, 0b is binary.

If the string is invalid or if only a subset of the string is valid, this returns true to signify the error. The string is considered erroneous if empty or if it overflows T.

Definition at line 480 of file StringRef.h.

References llvm::getAsSignedInteger(), llvm::getAsUnsignedInteger(), and T.

Referenced by adjustCallerStackProbeSize(), adjustMinLegalVectorWidth(), llvm::object::BigArchive::BigArchive(), checkedGetHex(), llvm::object::Archive::Child::Child(), llvm::object::OffloadBundleURI::createFileURI(), llvm::get_threadpool_strategy(), getArchiveMemberDecField(), getArchiveMemberOctField(), getExtensionVersion(), getGlobalSymtabLocAndSize(), getHostCPUNameForARMFromComponents(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), getPassNameAndInstanceNum(), llvm::getStringFnAttrAsInt(), llvm::X86TargetMachine::getSubtargetImpl(), llvm::AMDGPU::Exp::getTgtId(), llvm::yaml::isInteger(), optimizeNaN(), llvm::vfs::RedirectingFileSystemParser::parse(), llvm::SPIRV::parseBuiltinCallArgumentType(), llvm::parseCachePruningPolicy(), parseDuration(), llvm::remarks::parseHotnessThresholdOption(), ParseLine(), parseMetadata(), llvm::RISCVISAInfo::parseNormalizedArchString(), parseRegisterNumber(), parseSectionFlags(), llvm::MCSectionMachO::ParseSectionSpecifier(), llvm::parseStatepointDirectivesFromAttrs(), parseSVERegAsConstraint(), llvm::to_integer(), llvm::updateMinLegalVectorWidthAttr(), and llvm::writeArchiveToStream().

lower()

std::string StringRef::lower ( ) const

nodiscard

Definition at line 112 of file StringRef.cpp.

References begin(), end(), llvm::map_iterator(), and llvm::toLower().

Referenced by llvm::ARMCondCodeFromString(), llvm::ARMVectorCondCodeFromString(), llvm::ELF::convertArchNameToEMachine(), llvm::MipsTargetAsmStreamer::emitDirectiveCpAdd(), llvm::MipsTargetAsmStreamer::emitDirectiveCpLoad(), llvm::MipsTargetAsmStreamer::emitDirectiveCpLocal(), llvm::MipsTargetAsmStreamer::emitDirectiveCpsetup(), llvm::MipsTargetAsmStreamer::emitFrame(), llvm::SparcTargetAsmStreamer::emitSparcRegisterIgnore(), llvm::SparcTargetAsmStreamer::emitSparcRegisterScratch(), llvm::VETargetAsmStreamer::emitVERegisterIgnore(), llvm::VETargetAsmStreamer::emitVERegisterScratch(), getBankedRegisterMask(), llvm::getMachineType(), llvm::RISCVTargetLowering::getRegForInlineAsmConstraint(), getRegisterName(), llvm::ELFCompactAttrParser::parseSubsection(), parseVectorKind(), printMIOperand(), llvm::MipsAsmPrinter::printOperand(), llvm::printRegClassOrBank(), llvm::ARCInstPrinter::printRegName(), llvm::LanaiInstPrinter::printRegName(), llvm::MipsInstPrinter::printRegName(), and llvm::XCoreInstPrinter::printRegName().

ltrim() [1/2]

StringRef llvm::StringRef::ltrim ( char Char ) const

inlinenodiscard

Return string with consecutive Char characters starting from the the left removed.

Definition at line 800 of file StringRef.h.

References drop_front(), find_first_not_of(), size(), and StringRef().

Referenced by llvm::RuntimeDyldCheckerExprEval::evaluate(), FindCheckType(), llvm::sys::detail::getHostCPUNameForARM(), llvm::NVPTXTTIImpl::getInstructionCost(), llvm::mustache::hasTextAhead(), llvm::Pattern::parseNumericSubstitutionBlock(), parseReplacementItem(), parseScalarValue(), trim(), trim(), and llvm::VFABI::tryDemangleForVFABI().

ltrim() [2/2]

StringRef llvm::StringRef::ltrim ( StringRef Chars = " \t\n\v\f\r" ) const

inlinenodiscard

Return string with consecutive characters in Chars starting from the left removed.

Definition at line 806 of file StringRef.h.

References drop_front(), find_first_not_of(), size(), and StringRef().

operator std::string_view()

llvm::StringRef::operator std::string_view ( ) const

inlineconstexpr

Definition at line 260 of file StringRef.h.

References data, and size().

operator=()

template<typename T>

std::enable_if_t< std::is_same< T, std::string >::value, StringRef > & llvm::StringRef::operator= ( T && Str )

delete

Disallow accidental assignment from a temporary std::string.

The declaration here is extra complicated so that stringRef = {} and stringRef = "abc" continue to select the move assignment operator.

References T.

operator[]()

char llvm::StringRef::operator[] ( size_t Index ) const

inlinenodiscard

Definition at line 243 of file StringRef.h.

References assert(), data, and size().

rbegin()

reverse_iterator llvm::StringRef::rbegin ( ) const

inline

Definition at line 124 of file StringRef.h.

References end().

rend()

reverse_iterator llvm::StringRef::rend ( ) const

inline

Definition at line 128 of file StringRef.h.

References begin().

rfind() [1/2]

size_t llvm::StringRef::rfind ( char C, size_t From = npos ) const

inlinenodiscard

Search for the last character C in the string.

Returns

The index of the last occurrence of C, or npos if not found.

Definition at line 353 of file StringRef.h.

References llvm::CallingConv::C, data, I, npos, and size().

Referenced by llvm::omp::deconstructOpenMPKernelName(), llvm::ELFYAML::dropUniqueSuffix(), find_last_of(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), getStringIndex(), llvm::object::MachOObjectFile::guessLibraryShortName(), llvm::SPIRV::lookupBuiltinNameHelper(), llvm::SmallString< 0 >::rfind(), llvm::SmallString< 0 >::rfind(), and rsplit().

rfind() [2/2]

size_t StringRef::rfind ( StringRef Str ) const

nodiscard

Search for the last string Str in the string.

rfind - Search for the last string

Returns

The index of the last occurrence of Str, or npos if not found.

• Str in the string.

Returns

- The index of the last occurrence of

• Str, or npos if not found.

Definition at line 218 of file StringRef.cpp.

References StringRef().

rfind_insensitive() [1/2]

size_t StringRef::rfind_insensitive ( char C, size_t From = npos ) const

nodiscard

Search for the last character C in the string, ignoring case.

Returns

The index of the last occurrence of C, or npos if not found.

Definition at line 203 of file StringRef.cpp.

References llvm::CallingConv::C, data(), npos, size(), and llvm::toLower().

rfind_insensitive() [2/2]

size_t StringRef::rfind_insensitive ( StringRef Str ) const

nodiscard

Search for the last string Str in the string, ignoring case.

Returns

The index of the last occurrence of Str, or npos if not found.

Definition at line 222 of file StringRef.cpp.

References equals_insensitive(), N, npos, size(), StringRef(), and substr().

rsplit() [1/2]

std::pair< StringRef, StringRef > llvm::StringRef::rsplit ( char Separator ) const

inlinenodiscard

Split into two substrings around the last occurrence of a separator character.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is minimal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The character to split on.

Returns

- The split substrings.

Definition at line 794 of file StringRef.h.

References rsplit(), and StringRef().

rsplit() [2/2]

std::pair< StringRef, StringRef > llvm::StringRef::rsplit ( StringRef Separator ) const

inlinenodiscard

Split into two substrings around the last occurrence of a separator string.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is minimal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The string to split on.

Returns

- The split substrings.

Definition at line 743 of file StringRef.h.

References npos, rfind(), size(), slice(), StringRef(), and substr().

Referenced by rsplit().

rtrim() [1/2]

StringRef llvm::StringRef::rtrim ( char Char ) const

inlinenodiscard

Return string with consecutive Char characters starting from the right removed.

Definition at line 812 of file StringRef.h.

References drop_back(), find_last_not_of(), size(), and StringRef().

Referenced by llvm::VPlanPrinter::dump(), llvm::RuntimeDyldCheckerExprEval::evaluate(), getFieldRawString(), llvm::object::ArchiveMemberHeader::getName(), getPayloadString(), llvm::mustache::hasTextBehind(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), llvm::X86InstPrinterCommon::printCondFlags(), llvm::TextCodeGenDataReader::read(), and llvm::mustache::stripTokenBefore().

rtrim() [2/2]

StringRef llvm::StringRef::rtrim ( StringRef Chars = " \t\n\v\f\r" ) const

inlinenodiscard

Return string with consecutive characters in Chars starting from the right removed.

Definition at line 818 of file StringRef.h.

References drop_back(), find_last_not_of(), size(), and StringRef().

size()

size_t llvm::StringRef::size ( ) const

inlinenodiscardconstexpr

size - Get the string size.

Definition at line 154 of file StringRef.h.

Referenced by llvm::AArch64FunctionInfo::AArch64FunctionInfo(), llvm::json::abbreviate(), addSection(), llvm::BTFStringTable::addString(), llvm::msgpack::Document::addString(), angleBracketString(), angleBracketString(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), llvm::DWARFTypePrinter< DieType >::appendTypeTagName(), argPlusPrefixesSize(), argPrefix(), back(), llvm::CachedHashString::CachedHashString(), llvm::CachedHashStringRef::CachedHashStringRef(), callBufferedPrintfStart(), charTailAt(), llvm::RuntimeDyldCheckerImpl::checkAllRulesInBuffer(), checkArchVersion(), llvm::SITargetLowering::checkAsmConstraintVal(), checkDyldInfoCommand(), checkDysymtabCommand(), checkEncryptCommand(), checkLinkeditDataCommand(), checkNoteCommand(), checkSymtabCommand(), checkTwoLevelHintsCommand(), compare(), compare_insensitive(), compare_numeric(), llvm::ComputeCrossModuleImport(), computeStringTable(), constructSegment(), constructSymbolEntry(), consume_back(), consume_back_insensitive(), consumeInteger(), llvm::consumeUnsignedInteger(), llvm::detail::IEEEFloat::convertFromString(), llvm::convertToCamelFromSnakeCase(), llvm::convertToSnakeFromCamelCase(), llvm::convertUTF8ToUTF16String(), copy(), count(), llvm::coverage::BinaryCoverageReader::create(), llvm::StringMapEntry< std::nullopt_t >::create(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::object::OffloadBundleURI::createFileURI(), llvm::objcopy::coff::createGnuDebugLinkSectionContents(), llvm::jitlink::createLinkGraphFromELFObject(), llvm::MachO::createRegexFromGlob(), llvm::object::CompressedOffloadBundle::decompress(), detectEOL(), drop_back(), drop_front(), dumpStringOffsetsSection(), edit_distance(), edit_distance_insensitive(), llvm::BitstreamWriter::emitBlob(), llvm::dwarf_linker::classic::DwarfStreamer::emitCIE(), llvm::DWARFYAML::emitDebugAbbrev(), llvm::DWARFYAML::emitDebugLine(), llvm::dwarf_linker::classic::DwarfStreamer::emitFDE(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::emitFDE(), llvm::MCObjectStreamer::emitFileDirective(), emitPPA1Name(), llvm::emitSourceFileHeader(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::emitStringSections(), empty(), llvm::CodeViewContext::encodeDefRange(), encodeRegisterForDwarf(), end(), ends_with(), ends_with_insensitive(), equals_insensitive(), expand(), ExpandBasePaths(), llvm::sys::path::extension(), find(), find_first_not_of(), find_first_of(), find_if(), find_last_not_of(), find_last_not_of(), find_last_of(), FindCheckType(), FindFirstMatchingPrefix(), llvm::sys::unicode::findSyllable(), fixupIndexV4(), fixupIndexV5(), llvm::json::fixUTF8(), formatPax(), llvm::ErrorDiagnostic::get(), llvm::APInt::getBitsNeeded(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::objcopy::elf::IHexRecord::getChecksum(), llvm::ARMTargetLowering::getConstraintType(), llvm::AVRTargetLowering::getConstraintType(), llvm::BPFTargetLowering::getConstraintType(), llvm::HexagonTargetLowering::getConstraintType(), llvm::M68kTargetLowering::getConstraintType(), llvm::MSP430TargetLowering::getConstraintType(), llvm::NVPTXTargetLowering::getConstraintType(), llvm::PPCTargetLowering::getConstraintType(), llvm::RISCVTargetLowering::getConstraintType(), llvm::SITargetLowering::getConstraintType(), llvm::SparcTargetLowering::getConstraintType(), llvm::SystemZTargetLowering::getConstraintType(), llvm::TargetLowering::getConstraintType(), llvm::VETargetLowering::getConstraintType(), llvm::X86TargetLowering::getConstraintType(), llvm::XtensaTargetLowering::getConstraintType(), llvm::LTOModule::getDependentLibrary(), llvm::MCContext::getELFSection(), llvm::NonRelocatableStringpool::getEntry(), getErrorForInvalidExt(), getExtensionVersion(), llvm::getFuncNameWithoutPrefix(), llvm::objcopy::elf::SRecord::getHeader(), llvm::HexagonInstrInfo::getInlineAsmLength(), llvm::ARMTargetLowering::getInlineAsmMemConstraint(), llvm::RISCVTargetLowering::getInlineAsmMemConstraint(), llvm::SystemZTargetLowering::getInlineAsmMemConstraint(), llvm::MDString::getLength(), getMemBufferCopyImpl(), llvm::TargetLoweringObjectFileGOFF::getModuleMetadata(), llvm::object::Elf_Sym_Impl< ELFT >::getName(), llvm::WritableMemoryBuffer::getNewUninitMemBuffer(), llvm::getObjCNamesIfSelector(), llvm::cl::basic_parser_impl::getOptionWidth(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::Triple::getOSVersion(), getQualifiedNameIndex(), llvm::object::BigArchiveMemberHeader::getRawName(), llvm::ARMTargetLowering::getRegForInlineAsmConstraint(), llvm::AVRTargetLowering::getRegForInlineAsmConstraint(), llvm::BPFTargetLowering::getRegForInlineAsmConstraint(), llvm::HexagonTargetLowering::getRegForInlineAsmConstraint(), llvm::LanaiTargetLowering::getRegForInlineAsmConstraint(), llvm::M68kTargetLowering::getRegForInlineAsmConstraint(), llvm::MSP430TargetLowering::getRegForInlineAsmConstraint(), llvm::NVPTXTargetLowering::getRegForInlineAsmConstraint(), llvm::PPCTargetLowering::getRegForInlineAsmConstraint(), llvm::RISCVTargetLowering::getRegForInlineAsmConstraint(), llvm::SITargetLowering::getRegForInlineAsmConstraint(), llvm::SparcTargetLowering::getRegForInlineAsmConstraint(), llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::VETargetLowering::getRegForInlineAsmConstraint(), llvm::X86TargetLowering::getRegForInlineAsmConstraint(), llvm::XtensaTargetLowering::getRegForInlineAsmConstraint(), llvm::logicalview::getScopedName(), llvm::object::ELFFile< ELFT >::getSectionName(), llvm::object::MachOObjectFile::getSectionSize(), llvm::AMDGPU::Exp::getTgtId(), getUUID(), getVarName(), llvm::object::ELFFile< ELFT >::getVersionDependencies(), llvm::CodeViewYAML::GlobalHash::GlobalHash(), gsiRecordCmp(), llvm::object::MachOObjectFile::guessLibraryShortName(), HandlePrefixedOrGroupedOption(), llvm::handleSection(), llvm::jitlink::identifyELFSectionStartAndEndSymbols(), llvm::jitlink::identifyMachOSectionStartAndEndSymbols(), llvm::object::DirectX::Signature::initialize(), llvm::codeview::DebugStringTableSubsection::insert(), isAsmComment(), isImmConstraint(), llvm::yaml::isNumeric(), llvm::json::isUTF8(), llvm::detail::join_impl(), LLVMGetDebugLocDirectory(), LLVMGetDebugLocFilename(), LLVMGetInlineAsmAsmString(), LLVMGetInlineAsmConstraintString(), LLVMGetNamedMetadataName(), llvm::gsym::FunctionInfo::lookup(), llvm::SPIRV::lookupBuiltinNameHelper(), lookupLLVMIntrinsicByName(), llvm::ARMTargetLowering::LowerAsmOperandForConstraint(), llvm::AVRTargetLowering::LowerAsmOperandForConstraint(), llvm::LanaiTargetLowering::LowerAsmOperandForConstraint(), llvm::M68kTargetLowering::LowerAsmOperandForConstraint(), llvm::NVPTXTargetLowering::LowerAsmOperandForConstraint(), llvm::PPCTargetLowering::LowerAsmOperandForConstraint(), llvm::RISCVTargetLowering::LowerAsmOperandForConstraint(), llvm::SparcTargetLowering::LowerAsmOperandForConstraint(), llvm::SystemZTargetLowering::LowerAsmOperandForConstraint(), llvm::TargetLowering::LowerAsmOperandForConstraint(), llvm::XtensaTargetLowering::LowerAsmOperandForConstraint(), llvm::InlineAsmLowering::lowerAsmOperandForConstraint(), ltrim(), ltrim(), llvm::object::MachOUniversalBinary::MachOUniversalBinary(), llvm::opt::DerivedArgList::MakeJoinedArg(), mapNameAndUniqueName(), llvm::Pattern::match(), PrefixMatcher::match(), maybeLexIndex(), maybeLexIndexAndName(), maybeLexIRBlock(), maybeLexIRValue(), maybeLexMCSymbol(), maybeLexSubRegisterIndex(), operator new(), operator std::string_view(), llvm::gsym::operator<<(), llvm::gsym::operator<<(), operator[](), optimizeDoubleFP(), optimizeMemCmpVarSize(), llvm::DWARFDebugFrame::parse(), llvm::ELFExtendedAttrParser::parse(), llvm::object::DirectX::PSVRuntimeInfo::parse(), llvm::parseAnalysisUtilityPasses(), llvm::RISCVISAInfo::parseArchString(), llvm::yaml::parseBool(), parseBraceExpansions(), parseHeader(), ParseLine(), parseMagic(), parseMaybeMangledName(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parsePattern(), parseRefinementStep(), parseRegisterNumber(), parseScalarValue(), parseSegmentLoadCommand(), parseStrTabSize(), parseSVERegAsConstraint(), parseVersion(), populateDependencyMatrix(), printCFI(), PrintCFIEscape(), llvm::cl::Option::printEnumValHelpStr(), llvm::Pattern::printFuzzyMatch(), llvm::cl::generic_parser_base::printGenericOptionDiff(), printLine(), printNoMatch(), llvm::cl::generic_parser_base::printOptionInfo(), printSourceLine(), promoteToConstantPool(), llvm::irsymtab::readBitcode(), llvm::FileCheck::readCheckFile(), readCoverageMappingData(), llvm::InstrProfReaderItaniumRemapper< HashTableImpl >::reconstituteName(), llvm::LessRecordRegister::RecordParts::RecordParts(), llvm::sys::path::relative_path(), llvm::sys::path::remove_dots(), llvm::object::replace(), llvm::sys::path::replace_extension(), llvm::sys::path::replace_path_prefix(), llvm::RewriteBuffer::ReplaceText(), llvm::report_fatal_error(), llvm::logicalview::LVElement::resolveFullname(), rfind(), rfind_insensitive(), rfind_insensitive(), llvm::RISCVMachineFunctionInfo::RISCVMachineFunctionInfo(), rsplit(), rtrim(), rtrim(), llvm::SimplifyTypeTestsPass::run(), llvm::StringSaver::save(), llvm::orc::MachOBuilder< MachOTraits >::Section::Section(), llvm::orc::MachOBuilder< MachOTraits >::Segment::Segment(), llvm::orc::shared::SPSSerializationTraits< SPSString, StringRef >::serialize(), llvm::orc::shared::SPSSerializationTraits< SPSString, StringRef >::size(), slice(), split(), split(), splitLiteralAndReplacement(), starts_with(), starts_with_insensitive(), llvm::sys::unicode::startsWith(), llvm::sys::path::stem(), str(), StringRef(), llvm::StrInStrNoCase(), llvm::impl::strip_quotes(), llvm::mustache::stripTokenBefore(), llvm::Regex::sub(), substr(), llvm::BTFParser::symbolize(), take_back(), take_front(), llvm::mustache::tokenize(), llvm::StringAttributeImpl::totalSizeToAlloc(), llvm::Twine::Twine(), llvm::Twine::Twine(), llvm::codeview::TypeServer2Record::TypeServer2Record(), updateAndRemoveSymbols(), updateLoadCommandPayloadString(), updateSection(), llvm::UpgradeDataLayoutString(), upgradeLoopTag(), llvm::orc::ELFDebugObjectSection< ELFT >::validateInBounds(), llvm::DWARFVerifier::verifyDebugStrOffsets(), llvm::logicalview::LVLogicalVisitor::visitKnownMember(), llvm::object::WasmObjectFile::WasmObjectFile(), wordsOfString(), llvm::msgpack::Writer::write(), llvm::writeArchiveToStream(), llvm::writeStringsAndOffsets(), and llvm::yaml::yaml2archive().

slice()

StringRef llvm::StringRef::slice ( size_t Start, size_t End ) const

inlinenodiscard

Return a reference to the substring from [Start, End).

Parameters

Start	The index of the starting character in the substring; if the index is npos or greater than the length of the string then the empty substring will be returned.
End	The index following the last character to include in the substring. If this is npos or exceeds the number of characters remaining in the string, the string suffix (starting with Start) will be returned. If this is less than Start, an empty string will be returned.

Definition at line 694 of file StringRef.h.

References data, size(), and StringRef().

Referenced by llvm::FileCheckString::CheckDag(), llvm::dwarf_linker::parallel::CompileUnit::cloneDieAttrExpression(), llvm::object::ObjectFile::createMachOObjectFile(), llvm::BTFParser::findString(), llvm::objcopy::elf::SRecord::getHeader(), llvm::object::MinidumpFile::getRawStream(), llvm::object::MachOObjectFile::guessLibraryShortName(), llvm::lookupBuiltin(), llvm::RISCVISAInfo::parseArchString(), llvm::SPIRV::parseBuiltinCallArgumentType(), llvm::SPIRV::parseBuiltinTypeStr(), llvm::RISCVISAInfo::parseNormalizedArchString(), parseRegisterNumber(), printSourceLine(), rsplit(), llvm::sandboxir::PassManager< ParentPass, ContainedPass >::setPassPipeline(), llvm::SmallString< 0 >::slice(), split(), split(), split(), splitLiteralAndReplacement(), llvm::Regex::sub(), and tokenizeWindowsCommandLineImpl().

split() [1/4]

std::pair< StringRef, StringRef > llvm::StringRef::split ( char Separator ) const

inlinenodiscard

Split into two substrings around the first occurrence of a separator character.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is maximal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

The character to split on.

Returns

The split substrings.

Definition at line 710 of file StringRef.h.

References split(), and StringRef().

Referenced by addSection(), collectAddressSymbols(), llvm::InlineAsm::collectAsmStrs(), collectMetadataInfo(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::sampleprof::SampleContext::decodeContextString(), llvm::FileCheckPatternContext::defineCmdlineVariables(), llvm::VPlanPrinter::dump(), llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV4::emitKernelArg(), findSection(), llvm::findVCToolChainViaEnvironment(), forceAttributes(), llvm::Triple::getArchName(), llvm::codeview::getBytesAsCString(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::object::COFFObjectFile::getDebugPDBInfo(), llvm::getDefaultDebuginfodUrls(), llvm::Triple::getEnvironmentName(), llvm::AArch64TTIImpl::getFeatureMask(), llvm::getFnAttrParsedVector(), llvm::sys::detail::getHostCPUNameForARM(), llvm::sys::detail::getHostCPUNameForRISCV(), llvm::sys::detail::getHostCPUNameForS390x(), llvm::AMDGPU::getIntegerVecAttribute(), getIntOperandFromRegisterString(), getIntOperandsFromRegisterString(), getOpEnabled(), getOpRefinementSteps(), llvm::Triple::getOSAndEnvironmentName(), llvm::Triple::getOSName(), llvm::getParsedIRPGOName(), llvm::LoongArchTargetLowering::getRegisterByName(), getSearchPaths(), llvm::object::COFFObjectFile::getSectionName(), llvm::VFABI::getVectorVariantNames(), llvm::Triple::getVendorName(), llvm::handleExecNameEncodedBEOpts(), llvm::handleExecNameEncodedOptimizerOpts(), hasObjCCategoryInModule(), llvm::isHeader(), llvm::offloading::amdgpu::isImageCompatibleWithEnv(), isThumbFunction(), llvm::object::Lexer::lex(), llvm::lookupBuiltin(), LookupNearestOption(), llvm::SpecialCaseList::parse(), llvm::SPIRVExtensionsParser::parse(), llvm::PassBuilder::parseAAPipeline(), parseAMDGPUAttributorPassOptions(), llvm::SPIRV::parseBuiltinTypeStr(), parseCHRFilterFiles(), llvm::parseDenormalFPAttribute(), parseNamePrefix(), llvm::PassBuilder::parseSinglePassOption(), parseThunkName(), llvm::DebugCounter::push_back(), llvm::ForceFunctionAttrsPass::run(), llvm::lsp::URIForFile::scheme(), llvm::Hexagon_MC::selectHexagonCPU(), llvm::AMDGPU::IsaInfo::AMDGPUTargetID::setTargetIDFromTargetIDStream(), llvm::SubtargetFeatures::Split(), split(), llvm::Regex::sub(), llvm::opt::OptTable::suggestValueCompletions(), llvm::Triple::Triple(), and upgradeNVVMFnVectorAttr().

split() [2/4]

void StringRef::split	(	SmallVectorImpl< StringRef > &	A,
		char	Separator,
		int	MaxSplit = -1,
		bool	KeepEmpty = true ) const

Split into substrings around the occurrences of a separator character.

Each substring is stored in A. If MaxSplit is >= 0, at most MaxSplit splits are done and consequently <= MaxSplit + 1 elements are added to A. If KeepEmpty is false, empty strings are not added to A. They still count when considering MaxSplit An useful invariant is that Separator.join(A) == *this if MaxSplit == -1 and KeepEmpty == true

Parameters

A	- Where to put the substrings.
Separator	- The string to split on.
MaxSplit	- The maximum number of times the string is split.
KeepEmpty	- True if empty substring should be added.

Definition at line 340 of file StringRef.cpp.

References A(), empty(), find(), npos, slice(), StringRef(), and substr().

split() [3/4]

void StringRef::split	(	SmallVectorImpl< StringRef > &	A,
		StringRef	Separator,
		int	MaxSplit = -1,
		bool	KeepEmpty = true ) const

Split into substrings around the occurrences of a separator string.

Each substring is stored in A. If MaxSplit is >= 0, at most MaxSplit splits are done and consequently <= MaxSplit + 1 elements are added to A. If KeepEmpty is false, empty strings are not added to A. They still count when considering MaxSplit An useful invariant is that Separator.join(A) == *this if MaxSplit == -1 and KeepEmpty == true

Parameters

A	- Where to put the substrings.
Separator	- The string to split on.
MaxSplit	- The maximum number of times the string is split.
KeepEmpty	- True if empty substring should be added.

Definition at line 313 of file StringRef.cpp.

References A(), empty(), find(), npos, size(), slice(), StringRef(), and substr().

split() [4/4]

std::pair< StringRef, StringRef > llvm::StringRef::split ( StringRef Separator ) const

inlinenodiscard

Split into two substrings around the first occurrence of a separator string.

If Separator is in the string, then the result is a pair (LHS, RHS) such that (*this == LHS + Separator + RHS) is true and RHS is maximal. If Separator is not in the string, then the result is a pair (LHS, RHS) where (*this == LHS) and (RHS == "").

Parameters

Separator

- The string to split on.

Returns

- The split substrings.

Definition at line 725 of file StringRef.h.

References find(), npos, size(), slice(), StringRef(), and substr().

starts_with() [1/2]

bool llvm::StringRef::starts_with ( char Prefix ) const

inlinenodiscard

Definition at line 273 of file StringRef.h.

References empty(), and front().

starts_with() [2/2]

bool llvm::StringRef::starts_with ( StringRef Prefix ) const

inlinenodiscard

Check if this string starts with the given Prefix.

Definition at line 269 of file StringRef.h.

References data, size(), and StringRef().

Referenced by llvm::DWARFTypePrinter< DieType >::appendTypeTagName(), llvm::object::Archive::Archive(), llvm::AsmLexer::AsmLexer(), llvm::ELFAttrs::attrTypeFromString(), collectAddressSymbols(), llvm::objcopy::elf::Object::compressOrDecompressSections(), llvm::ARM::computeTargetABI(), llvm::MipsABIInfo::computeTargetABI(), llvm::RISCVABI::computeTargetABI(), llvm::object::Archive::create(), llvm::remarks::createYAMLParserFromMeta(), llvm::omp::deconstructOpenMPKernelName(), doesIgnoreDataTypeSuffix(), llvm::Attributor::emitRemark(), llvm::Attributor::emitRemark(), llvm::ARMTargetStreamer::emitTargetAttributes(), llvm::NVPTXTargetStreamer::emitValue(), llvm::ELFObjectWriter::executePostLayoutBinding(), FindCheckType(), llvm::JITSymbolFlags::fromGlobalValue(), llvm::generateGroupInst(), getAbsolutePath(), llvm::AArch64::getArchExtFeature(), llvm::getFuncNameWithoutPrefix(), getMipsABI(), llvm::TargetLoweringObjectFileGOFF::getModuleMetadata(), llvm::object::getNameType(), llvm::MCContext::getOrCreateSymbol(), llvm::opt::ArgList::GetOrMakeJoinedArgString(), llvm::Triple::getOSVersion(), getPointeeTypeByCallInst(), llvm::SPIRVTargetLowering::getRegForInlineAsmConstraint(), llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLowering::getRegForInlineAsmConstraint(), llvm::TargetLoweringObjectFileELF::getSectionForMachineBasicBlock(), llvm::yaml::Node::getVerbatimTag(), llvm::MVT::getVT(), globalVariableNeedsRedirect(), hasAnyUnrollPragma(), llvm::memprof::YAMLMemProfReader::hasFormat(), llvm::mustache::hasTextAhead(), llvm::HexagonSubtarget::initializeSubtargetDependencies(), llvm::LTOModule::isBitcodeForTarget(), llvm::orc::isCOFFInitializerSection(), isDebugSection(), llvm::objcopy::coff::isDebugSection(), llvm::objcopy::wasm::isDebugSection(), llvm::object::isDecorated(), llvm::objcopy::wasm::isLinkerSection(), llvm::yaml::isNumeric(), llvm::MachO::isPrivateLibrary(), llvm::objcopy::macho::SymbolEntry::isSwiftSymbol(), llvm::LoongArch::isValidFeatureName(), llvm::SPIRV::lookupBuiltinNameHelper(), llvm::makeFollowupLoopID(), llvm::makePostTransformationMetadata(), matchOption(), llvm::Triple::normalize(), optimizeDoubleFP(), llvm::SpecialCaseList::parse(), llvm::parseAnalysisUtilityPasses(), parseArch(), llvm::ARM::parseArchEndian(), llvm::RISCVISAInfo::parseArchString(), parseARMArch(), llvm::SPIRV::parseBuiltinTypeNameToTargetExtType(), llvm::DebugCounter::parseChunks(), ParseLine(), parseMaybeMangledName(), llvm::AArch64::ExtensionSet::parseModifier(), llvm::Pattern::parsePattern(), parseSubArch(), parseSVERegAsConstraint(), llvm::MachO::parseSymbol(), parseThunkName(), processGlobal(), llvm::RuntimeDyldCOFFAArch64::processRelocationRef(), llvm::RuntimeDyldCOFFI386::processRelocationRef(), llvm::RuntimeDyldCOFFThumb::processRelocationRef(), llvm::RuntimeDyldCOFFX86_64::processRelocationRef(), llvm::pruneCache(), llvm::lsp::JSONTransportInputOverFile::readDelimitedMessage(), llvm::object::replace(), replaceAndRemoveSections(), llvm::SimplifyTypeTestsPass::run(), llvm::ThunkInserter< Derived, InsertedThunksTy >::run(), llvm::runFuzzerOnInputs(), llvm::sampleprof::SampleContext::SampleContext(), llvm::pdb::NativeSession::searchForPdb(), llvm::HexagonTargetObjectFile::SelectSectionForGlobal(), llvm::cl::Option::setArgStr(), shouldCheckArgs(), llvm::SmallString< 0 >::starts_with(), llvm::mustache::stripTokenAhead(), llvm::orc::DLLImportDefinitionGenerator::tryToGenerate(), updateAndRemoveSymbols(), upgradeLoopTag(), and llvm::gsym::DwarfTransformer::verify().

starts_with_insensitive()

bool StringRef::starts_with_insensitive ( StringRef Prefix ) const

nodiscard

Check if this string starts with the given Prefix, ignoring case.

Definition at line 46 of file StringRef.cpp.

References ascii_strncasecmp(), size(), StringRef(), and take_front().

Referenced by consume_front_insensitive(), and matchOption().

str()

std::string llvm::StringRef::str ( ) const

inlinenodiscard

str - Get the contents as an std::string.

Definition at line 233 of file StringRef.h.

References data, and size().

Referenced by llvm::vfs::InMemoryFileSystem::addHardLink(), llvm::DCData::addSuccessorLabel(), buildFrameDebugInfo(), llvm::cacheAnnotationFromMD(), checkOperandCount(), llvm::dwarf_linker::parallel::CompileUnit::CompileUnit(), constructSymbolEntry(), convertSRPoints(), llvm::TextEncodingConverter::create(), llvm::Hexagon_MC::createHexagonMCSubtargetInfo(), llvm::orc::StaticLibraryDefinitionGenerator::createMemberBuffer(), createMergedFunction(), decodeError(), dumpSectionToFile(), dumpSectionToFile(), llvm::objcopy::wasm::dumpSectionToFile(), llvm::emitAMDGPUPrintfCall(), llvm::objcopy::macho::executeObjcopyOnBinary(), llvm::objcopy::macho::executeObjcopyOnMachOUniversalBinary(), llvm::object::OffloadBundleFatBin::extractBundle(), llvm::CodeExtractor::extractCodeRegion(), llvm::object::extractOffloadBundleByURI(), llvm::objcopy::dxbc::extractPartAsObject(), llvm::object::MachOObjectFile::findDsymObjectMembers(), findSection(), llvm::lsp::URIForFile::fromURI(), llvm::generateSampleImageInst(), llvm::DiagnosticLocation::getAbsolutePath(), llvm::RecordKeeper::getAllDerivedDefinitions(), llvm::DWARFFormValue::getAsCString(), llvm::Attribute::getAsString(), llvm::bfi_detail::getBlockName(), llvm::pdb::NativeSourceFile::getChecksum(), getExtensionVersion(), llvm::DOTGraphTraits< DOTFuncInfo * >::getGraphName(), llvm::DOTGraphTraits< DOTFuncMSSAInfo * >::getGraphName(), llvm::DOTGraphTraits< DOTMachineFuncInfo * >::getGraphName(), getHighestNumericTupleInDirectory(), llvm::vfs::File::getName(), getNewName(), llvm::DOTGraphTraits< AttributorCallGraph * >::getNodeLabel(), llvm::SDNode::getOperationName(), llvm::symbolize::LLVMSymbolizer::getOrCreateModuleInfo(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::getPGOFuncName(), getQualifiedNameIndex(), llvm::pdb::PDBSymbolCompiland::getSourceFileName(), llvm::getStringValueFromReg(), llvm::ARMBaseTargetMachine::getSubtargetImpl(), llvm::CSKYTargetMachine::getSubtargetImpl(), llvm::HexagonTargetMachine::getSubtargetImpl(), llvm::LoongArchTargetMachine::getSubtargetImpl(), llvm::M68kTargetMachine::getSubtargetImpl(), llvm::MipsTargetMachine::getSubtargetImpl(), llvm::PPCTargetMachine::getSubtargetImpl(), llvm::RISCVTargetMachine::getSubtargetImpl(), llvm::SparcTargetMachine::getSubtargetImpl(), llvm::SystemZTargetMachine::getSubtargetImpl(), llvm::WebAssemblyTargetMachine::getSubtargetImpl(), llvm::XtensaTargetMachine::getSubtargetImpl(), llvm::getSymbolicOperandMnemonic(), llvm::dwarf_linker::classic::CompileUnit::getSysRoot(), llvm::object::IRObjectFile::getTargetTriple(), llvm::objcopy::coff::handleArgs(), INITIALIZE_PASS(), llvm::M68kSubtarget::initializeSubtargetDependencies(), llvm::yaml::StdMapStringCustomMappingTraitsImpl< T >::inputOne(), llvm::lookupPGONameFromMetadata(), llvm::SPIRV::lowerBuiltinType(), llvm::XtensaTargetLowering::LowerCall(), mangleCoveragePath(), llvm::yaml::MappingTraits< const InterfaceFile * >::NormalizedTBD::NormalizedTBD(), llvm::vfs::RedirectingFileSystem::openFileForRead(), llvm::orc::LoadAndLinkDynLibrary::operator()(), llvm::objcopy::elf::OwnedDataSection::OwnedDataSection(), llvm::cl::parser< std::string >::parse(), llvm::SPIRVExtensionsParser::parse(), llvm::MachO::parseAliasList(), llvm::RISCVISAInfo::parseArchString(), parseBraceExpansions(), llvm::SPIRV::parseBuiltinCallArgumentType(), parseDebugType(), parseIRConstant(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::dwarf::parseRows(), llvm::omp::prettifyFunctionName(), llvm::MCDecodedPseudoProbe::print(), llvm::jitlink::printSymbolEntry(), processConstantStringArg(), processLoadCommands(), llvm::lsp::JSONTransportInputOverFile::readDelimitedMessage(), replaceWithCallToVeclib(), llvm::logicalview::LVScopeArray::resolveExtra(), llvm::DroppedVariableStatsMIR::runAfterPass(), llvm::PseudoProbeVerifier::runAfterPass(), runImpl(), llvm::IRSimilarity::IRInstructionData::setCalleeName(), llvm::MCContext::setCompilationDir(), llvm::setKCFIType(), llvm::vfs::YAMLVFSWriter::setOverlayDir(), llvm::vfs::RedirectingFileSystem::setOverlayFileDir(), setSocketAddr(), smallData(), llvm::SPIRVTranslate(), llvm::Twine::str(), llvm::mustache::stripTokenAhead(), llvm::mustache::stripTokenBefore(), suffixed_name_or(), llvm::timeTraceProfilerWrite(), llvm::symbolize::toJSON(), llvm::mustache::tokenize(), uriFromAbsolutePath(), writeListEntryAddress(), and writeTimestampFile().

substr()

StringRef llvm::StringRef::substr ( size_t Start, size_t N = npos ) const

inlinenodiscardconstexpr

Return a reference to the substring from [Start, Start + N).

Parameters

Start	The index of the starting character in the substring; if the index is npos or greater than the length of the string then the empty substring will be returned.
N	The number of characters to included in the substring. If N exceeds the number of characters remaining in the string, the string suffix (starting with Start) will be returned.

Definition at line 581 of file StringRef.h.

References data, N, npos, size(), and StringRef().

Referenced by llvm::DWARFTypePrinter< DieType >::appendTypeTagName(), llvm::object::applyNameType(), llvm::FileCheckString::Check(), llvm::FileCheckString::CheckDag(), llvm::FileCheck::checkInput(), llvm::dwarf_linker::parallel::DWARFLinkerImpl::LinkContext::cloneAndEmitDebugFrame(), CommaSeparateAndAddOccurrence(), llvm::consumeUnsignedInteger(), llvm::GlobPattern::create(), llvm::sampleprof::SampleContext::createCtxVectorFromStr(), llvm::object::CompressedOffloadBundle::decompress(), llvm::FileCheckPatternContext::defineCmdlineVariables(), llvm::ELFYAML::dropUniqueSuffix(), llvm::SystemZHLASMAsmStreamer::EmitComment(), emitComments(), llvm::AsmPrinter::emitPCSections(), emitPPA1Name(), llvm::RuntimeDyldCheckerExprEval::evaluate(), llvm::ELFObjectWriter::executePostLayoutBinding(), expand(), ExpandBasePaths(), llvm::sys::path::extension(), find_insensitive(), FindFirstMatchingPrefix(), llvm::MCJIT::findModuleForSymbol(), llvm::format_provider< T, std::enable_if_t< support::detail::use_string_formatter< T >::value > >::format(), llvm::JITSymbolFlags::fromGlobalValue(), getAbsolutePath(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsArchive(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsIRObject(), llvm::object::MachOUniversalBinary::ObjectForArch::getAsObjectFile(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::getConstantStringInfo(), llvm::TargetLowering::getConstraintType(), llvm::gsym::GsymReader::getFunctionInfoDataAtIndex(), getHexUint(), getLiteralSectionName(), llvm::TargetLoweringObjectFileGOFF::getModuleMetadata(), getOpEnabled(), getOpRefinementSteps(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVTypeByName(), llvm::Triple::getOSVersion(), llvm::object::DirectX::RootSignature::getParameter(), getQualifiedNameIndex(), getStringIndex(), llvm::object::MachOObjectFile::getStringTableData(), getVarName(), llvm::yaml::Node::getVerbatimTag(), llvm::object::MachOObjectFile::guessLibraryShortName(), HandlePrefixedOrGroupedOption(), llvm::object::DirectX::Signature::initialize(), llvm::isSpecialPass(), llvm::object::Lexer::lex(), llvm::SPIRV::lookupBuiltinNameHelper(), llvm::MCGenDwarfLabelEntry::Make(), matchOption(), llvm::objcopy::elf::IHexRecord::parse(), llvm::object::DirectX::PSVRuntimeInfo::parse(), llvm::SPIRVExtensionsParser::parse(), llvm::parseAnalysisUtilityPasses(), llvm::RISCVISAInfo::parseArchString(), llvm::yaml::Document::parseBlockNode(), parseBraceExpansions(), llvm::SPIRV::parseBuiltinCallArgumentType(), llvm::SPIRV::parseBuiltinTypeNameToTargetExtType(), llvm::dwarf_linker::parseDebugTableName(), parseDebugType(), parseFilePathFromURI(), parseInt(), ParseLine(), llvm::RISCVISAInfo::parseNormalizedArchString(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), parseScalarValue(), parseSVERegAsConstraint(), llvm::Pattern::printFuzzyMatch(), llvm::FileCheck::readCheckFile(), llvm::GCOVBuffer::readGCDAFormat(), llvm::GCOVBuffer::readGCNOFormat(), llvm::TextInstrProfReader::readHeader(), llvm::object::replace(), llvm::sys::path::replace_path_prefix(), rfind_insensitive(), llvm::SimplifyTypeTestsPass::run(), split(), split(), splitLiteralAndReplacement(), llvm::sys::path::stem(), llvm::streamFile(), llvm::StrInStrNoCase(), llvm::stripDirPrefix(), llvm::SubtargetFeatures::StripFlag(), llvm::mustache::stripTokenAhead(), llvm::Regex::sub(), llvm::SmallString< 0 >::substr(), llvm::BTFParser::symbolize(), llvm::mustache::Token::Token(), llvm::VersionTuple::tryParse(), llvm::UpgradeSectionAttributes(), llvm::object::WasmObjectFile::WasmObjectFile(), and llvm::write().

take_back()

StringRef llvm::StringRef::take_back ( size_t N = 1 ) const

inlinenodiscard

Return a StringRef equal to 'this' but with only the last N elements remaining.

If N is greater than the length of the string, the entire string is returned.

Definition at line 599 of file StringRef.h.

References drop_front(), N, size(), and StringRef().

Referenced by ends_with_insensitive().

take_front()

StringRef llvm::StringRef::take_front ( size_t N = 1 ) const

inlinenodiscard

Return a StringRef equal to 'this' but with only the first N elements remaining.

If N is greater than the length of the string, the entire string is returned.

Definition at line 590 of file StringRef.h.

References drop_back(), N, size(), and StringRef().

Referenced by llvm::json::abbreviate(), llvm::objcopy::elf::OwnedDataSection::appendHexData(), compare_insensitive(), emitNullTerminatedSymbolName(), llvm::objcopy::elf::IHexRecord::getChecksum(), llvm::getObjCNamesIfSelector(), llvm::ThreadSafeTrieRawHashMapBase::getTriePrefixAsString(), llvm::TextCodeGenDataReader::hasFormat(), mapNameAndUniqueName(), parseDebugType(), llvm::Pattern::parseNumericSubstitutionBlock(), parseScalarValue(), llvm::sys::path::remove_dots(), splitLiteralAndReplacement(), starts_with_insensitive(), and llvm::symbolize::takeTo().

take_until()

StringRef llvm::StringRef::take_until ( function_ref< bool(char)> F ) const

inlinenodiscard

Return the longest prefix of 'this' such that no character in the prefix satisfies the given predicate.

Definition at line 613 of file StringRef.h.

References F, find_if(), StringRef(), and substr().

Referenced by llvm::object::OffloadBundleURI::createFileURI(), and llvm::DebugCounter::parseChunks().

take_while()

StringRef llvm::StringRef::take_while ( function_ref< bool(char)> F ) const

inlinenodiscard

Return the longest prefix of 'this' such that every character in the prefix satisfies the given predicate.

Definition at line 607 of file StringRef.h.

References F, find_if_not(), StringRef(), and substr().

Referenced by splitLiteralAndReplacement(), and llvm::VFABI::tryDemangleForVFABI().

trim() [1/2]

StringRef llvm::StringRef::trim ( char Char ) const

inlinenodiscard

Return string with consecutive Char characters starting from the left and right removed.

Definition at line 824 of file StringRef.h.

References ltrim(), and StringRef().

Referenced by llvm::MachO::TextAPIReader::canRead(), llvm::RuntimeDyldCheckerImpl::check(), llvm::logicalview::LVBinaryReader::createInstructions(), llvm::RuntimeDyldCheckerExprEval::evaluate(), llvm::DataExtractor::getFixedLengthString(), llvm::NVPTXTTIImpl::getInstructionCost(), llvm::SpecialCaseList::parse(), llvm::MachO::parseAliasList(), llvm::Pattern::parseNumericSubstitutionBlock(), parseReplacementItem(), llvm::lsp::JSONTransportInputOverFile::readStandardMessage(), upgradeNVVMFnVectorAttr(), and usesTriple().

trim() [2/2]

StringRef llvm::StringRef::trim ( StringRef Chars = " \t\n\v\f\r" ) const

inlinenodiscard

Return string with consecutive characters in Chars starting from the left and right removed.

Definition at line 830 of file StringRef.h.

References ltrim(), and StringRef().

upper()

std::string StringRef::upper ( ) const

nodiscard

Convert the given ASCII string to uppercase.

Definition at line 117 of file StringRef.cpp.

References begin(), end(), llvm::map_iterator(), and llvm::toUpper().

Member Data Documentation

npos

size_t StringRef::npos = ~size_t(0)

staticconstexpr

Definition at line 57 of file StringRef.h.

Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue(), llvm::DWARFTypePrinter< DieType >::appendUnqualifiedNameBefore(), buildFixItLine(), llvm::FileCheckString::Check(), llvm::FileCheckString::CheckDag(), checkIfSupported(), llvm::FileCheck::checkInput(), CommaSeparateAndAddOccurrence(), contains(), contains(), contains_insensitive(), contains_insensitive(), count(), llvm::sys::fs::createTemporaryFile(), llvm::omp::deconstructOpenMPKernelName(), llvm::FileCheckPatternContext::defineCmdlineVariables(), detectEOL(), llvm::ELFYAML::dropUniqueSuffix(), llvm::object::Archive::ec_symbols(), llvm::ELFObjectWriter::executePostLayoutBinding(), ExpandBasePaths(), llvm::sys::path::extension(), extractOffloadBundle(), find(), find_first_not_of(), find_first_of(), find_if(), find_insensitive(), find_last_not_of(), find_last_not_of(), llvm::SmallString< 0 >::find_last_of(), llvm::SmallString< 0 >::find_last_of(), find_last_of(), find_last_of(), llvm::SourceMgr::FindLocForLineAndColumn(), llvm::format_provider< T, std::enable_if_t< support::detail::use_string_formatter< T >::value > >::format(), llvm::symbolize::SourceCode::format(), llvm::ARM::getCanonicalArchName(), llvm::sampleprof::FunctionSamples::getCanonicalFnName(), llvm::DataExtractor::getCStrRef(), llvm::sys::detail::getHostCPUNameForS390x(), getInstrStrFromOpNo(), llvm::NVPTXTTIImpl::getInstructionCost(), llvm::SourceMgr::getLineAndColumn(), llvm::object::ArchiveMemberHeader::getName(), llvm::getObjCNamesIfSelector(), llvm::object::ArchiveMemberHeader::getRawName(), getTypeNamePrefix(), llvm::object::MachOObjectFile::guessLibraryShortName(), llvm::isArm64ECMangledFunctionName(), llvm::Regex::isLiteralERE(), llvm::yaml::isNumeric(), llvm::isSpecialPass(), locateCStrings(), lookupLLVMIntrinsicByName(), llvm::Pattern::match(), PrefixMatcher::match(), llvm::sys::path::reverse_iterator::operator++(), llvm::sys::path::parent_path(), llvm::SPIRV::parseBuiltinTypeStr(), parseDebugType(), parseFilePathFromURI(), ParseLine(), llvm::Pattern::parseNumericSubstitutionBlock(), llvm::Pattern::parsePattern(), parseRefinementStep(), parseScalarValue(), parseTypeCountMap(), llvm::sys::printArg(), llvm::Pattern::printFuzzyMatch(), printSourceLine(), llvm::BinaryStreamReader::readCString(), llvm::sampleprof::SampleProfileReaderText::readImpl(), llvm::sys::path::remove_dots(), llvm::sys::path::remove_filename(), llvm::object::replace(), llvm::sys::path::replace_extension(), llvm::SmallString< 0 >::rfind(), rfind(), rfind_insensitive(), rfind_insensitive(), rsplit(), llvm::serializeValueProfRecordFrom(), singleLetterExtensionRank(), split(), split(), split(), splitLiteralAndReplacement(), splitUstar(), llvm::sys::path::stem(), llvm::StrInStrNoCase(), llvm::Regex::sub(), llvm::SmallString< 0 >::substr(), substr(), llvm::ifs::terminatedSubstr(), llvm::mustache::tokenize(), and llvm::UpgradeDataLayoutString().

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

• include/llvm/ADT/StringRef.h
• lib/Support/StringRef.cpp