llvm::support::endian Namespace Reference

Classes
struct	Writer
	Adapter to write values to a stream in a particular byte order. More...

Typedefs
template<typename value_type >
using	make_unsigned_t = std::make_unsigned_t< value_type >

Functions
constexpr endianness	system_endianness ()
template<typename value_type >
value_type	byte_swap (value_type value, endianness endian)
template<typename value_type , endianness endian>
value_type	byte_swap (value_type value)
	Swap the bytes of value to match the given endianness.
template<typename value_type , std::size_t alignment = unaligned>
value_type	read (const void *memory, endianness endian)
	Read a value of a particular endianness from memory.
template<typename value_type , endianness endian, std::size_t alignment>
value_type	read (const void *memory)
template<typename value_type , std::size_t alignment, typename CharT >
value_type	readNext (const CharT *&memory, endianness endian)
	Read a value of a particular endianness from a buffer, and increment the buffer past that value.
template<typename value_type , endianness endian, std::size_t alignment, typename CharT >
value_type	readNext (const CharT *&memory)
template<typename value_type , std::size_t alignment = unaligned>
void	write (void *memory, value_type value, endianness endian)
	Write a value to memory with a particular endianness.
template<typename value_type , endianness endian, std::size_t alignment>
void	write (void *memory, value_type value)
template<typename value_type , endianness endian, std::size_t alignment>
value_type	readAtBitAlignment (const void *memory, uint64_t startBit)
	Read a value of a particular endianness from memory, for a location that starts at the given bit offset within the first byte.
template<typename value_type , endianness endian, std::size_t alignment>
void	writeAtBitAlignment (void *memory, value_type value, uint64_t startBit)
	Write a value to memory with a particular endianness, for a location that starts at the given bit offset within the first byte.
template<typename T , endianness E>
T	read (const void *P)
uint16_t	read16 (const void *P, endianness E)
uint32_t	read32 (const void *P, endianness E)
uint64_t	read64 (const void *P, endianness E)
template<endianness E>
uint16_t	read16 (const void *P)
template<endianness E>
uint32_t	read32 (const void *P)
template<endianness E>
uint64_t	read64 (const void *P)
uint16_t	read16le (const void *P)
uint32_t	read32le (const void *P)
uint64_t	read64le (const void *P)
uint16_t	read16be (const void *P)
uint32_t	read32be (const void *P)
uint64_t	read64be (const void *P)
template<typename T , endianness E>
void	write (void *P, T V)
void	write16 (void *P, uint16_t V, endianness E)
void	write32 (void *P, uint32_t V, endianness E)
void	write64 (void *P, uint64_t V, endianness E)
template<endianness E>
void	write16 (void *P, uint16_t V)
template<endianness E>
void	write32 (void *P, uint32_t V)
template<endianness E>
void	write64 (void *P, uint64_t V)
void	write16le (void *P, uint16_t V)
void	write32le (void *P, uint32_t V)
void	write64le (void *P, uint64_t V)
void	write16be (void *P, uint16_t V)
void	write32be (void *P, uint32_t V)
void	write64be (void *P, uint64_t V)
template<typename value_type >
void	write_array (raw_ostream &os, ArrayRef< value_type > values, endianness endian)
template<typename value_type >
void	write (raw_ostream &os, value_type value, endianness endian)
template<>
void	write< float > (raw_ostream &os, float value, endianness endian)
template<>
void	write< double > (raw_ostream &os, double value, endianness endian)
template<typename value_type >
void	write (raw_ostream &os, ArrayRef< value_type > vals, endianness endian)
template<typename value_type >
void	write (SmallVectorImpl< char > &Out, value_type V, endianness E)

Typedef Documentation

make_unsigned_t

template<typename value_type >

using llvm::support::endian::make_unsigned_t = typedef std::make_unsigned_t<value_type>

Definition at line 111 of file Endian.h.

Function Documentation

byte_swap() [1/2]

template<typename value_type , endianness endian>

value_type llvm::support::endian::byte_swap ( value_type  value )

inline

Swap the bytes of value to match the given endianness.

Definition at line 57 of file Endian.h.

References byte_swap(), and value.

byte_swap() [2/2]

template<typename value_type >

value_type llvm::support::endian::byte_swap ( value_type  value, endianness  endian  )

inline

Definition at line 49 of file Endian.h.

References llvm::support::native, llvm::sys::swapByteOrder(), system_endianness(), and value.

Referenced by llvm::HashBuilderImpl< HasherT, Endianness >::adjustForEndiannessAndAdd(), byte_swap(), llvm::MCStreamer::emitIntValue(), llvm::gsym::FileWriter::fixup32(), llvm::M68k::swapWord(), llvm::gsym::FileWriter::writeU16(), llvm::gsym::FileWriter::writeU32(), and llvm::gsym::FileWriter::writeU64().

read() [1/3]

template<typename value_type , endianness endian, std::size_t alignment>

value_type llvm::support::endian::read ( const void *  memory )

inline

Definition at line 74 of file Endian.h.

read() [2/3]

template<typename value_type , std::size_t alignment = unaligned>

value_type llvm::support::endian::read ( const void *  memory, endianness  endian  )

inline

Read a value of a particular endianness from memory.

Definition at line 63 of file Endian.h.

References LLVM_ASSUME_ALIGNED.

Referenced by llvm::sys::fs::copy_file_internal(), and llvm::sys::fs::md5_contents().

read() [3/3]

template<typename T , endianness E>

T llvm::support::endian::read ( const void *  P )

inline

Definition at line 352 of file Endian.h.

References P.

read16() [1/2]

template<endianness E>

uint16_t llvm::support::endian::read16 ( const void *  P )

inline

Definition at line 366 of file Endian.h.

References P.

read16() [2/2]

uint16_t llvm::support::endian::read16 ( const void *  P, endianness  E  )

inline

Definition at line 356 of file Endian.h.

References E, and P.

Referenced by llvm::AMDGPUDisassembler::decodeKernelDescriptor(), and llvm::dwarflinker_parallel::SectionDescriptor::getIntVal().

read16be()

uint16_t llvm::support::endian::read16be ( const void *  P )

inline

Definition at line 385 of file Endian.h.

References P.

Referenced by M68kDisassembler::getInstruction().

read16le()

uint16_t llvm::support::endian::read16le ( const void *  P )

inline

Definition at line 376 of file Endian.h.

References P.

Referenced by llvm::add16(), discoverTypeIndices(), llvm::object::Archive::ec_symbols(), getEncodedIntegerLength(), llvm::object::Archive::Symbol::getMember(), handleFieldList(), handleMethodOverloadList(), and handleOneMethod().

read32() [1/2]

template<endianness E>

uint32_t llvm::support::endian::read32 ( const void *  P )

inline

Definition at line 369 of file Endian.h.

References P.

read32() [2/2]

uint32_t llvm::support::endian::read32 ( const void *  P, endianness  E  )

inline

Definition at line 359 of file Endian.h.

References E, and P.

Referenced by llvm::dwarflinker_parallel::SectionDescriptor::getIntVal(), and llvm::jitlink::aarch32::readAddendData().

read32be()

uint32_t llvm::support::endian::read32be ( const void *  P )

inline

Definition at line 386 of file Endian.h.

References P.

Referenced by llvm::object::doesXCOFFTracebackTableBegin(), llvm::object::Archive::Symbol::getMember(), llvm::object::Archive::getNumberOfSymbols(), llvm::object::Archive::symbol_begin(), llvm::SHA1::update(), and llvm::SHA256::update().

read32le()

uint32_t llvm::support::endian::read32le ( const void *  P )

inline

Definition at line 379 of file Endian.h.

References P.

Referenced by analyzeHeader(), discoverTypeIndices(), llvm::object::Archive::ec_symbols(), llvm::X86_MC::findX86_64PltEntries(), llvm::X86_MC::findX86PltEntries(), llvm::object::Archive::Symbol::getMember(), llvm::object::Archive::Symbol::getNext(), llvm::object::Archive::getNumberOfECSymbols(), llvm::object::Archive::getNumberOfSymbols(), handlePointer(), llvm::identify_magic(), or32le(), llvm::or32le(), llvm::RuntimeDyldCOFFAArch64::processRelocationRef(), readUint32(), llvm::jitlink::relaxCall(), llvm::RuntimeDyldCOFFAArch64::resolveRelocation(), llvm::SkipBitcodeWrapperHeader(), llvm::object::Archive::symbol_begin(), write32AArch64Addr(), llvm::write32AArch64Addr(), llvm::write32AArch64Imm(), llvm::write32AArch64Ldr(), XXH3_len_1to3_64b(), XXH3_len_4to8_64b(), and llvm::xxHash64().

read64() [1/2]

template<endianness E>

uint64_t llvm::support::endian::read64 ( const void *  P )

inline

Definition at line 372 of file Endian.h.

References P.

read64() [2/2]

uint64_t llvm::support::endian::read64 ( const void *  P, endianness  E  )

inline

Definition at line 362 of file Endian.h.

References E, and P.

Referenced by llvm::dwarflinker_parallel::SectionDescriptor::getIntVal(), and llvm::CodeGenCoverage::parse().

read64be()

uint64_t llvm::support::endian::read64be ( const void *  P )

inline

Definition at line 387 of file Endian.h.

References P.

Referenced by appendGlobalSymbolTableInfo(), llvm::object::Archive::Symbol::getMember(), llvm::object::Archive::getNumberOfSymbols(), and llvm::object::Archive::symbol_begin().

read64le()

uint64_t llvm::support::endian::read64le ( const void *  P )

inline

Definition at line 382 of file Endian.h.

References P.

Referenced by llvm::object::Archive::Symbol::getMember(), llvm::object::Archive::getNumberOfSymbols(), llvm::RuntimeDyldCOFFAArch64::processRelocationRef(), llvm::sampleprof::SampleProfileReaderBinary::readSampleContextFromTable(), llvm::object::Archive::symbol_begin(), XXH3_accumulate_512_scalar(), XXH3_len_0to16_64b(), XXH3_len_4to8_64b(), XXH3_len_9to16_64b(), XXH3_mix16B(), XXH3_mix2Accs(), XXH3_scrambleAcc(), and llvm::xxHash64().

readAtBitAlignment()

template<typename value_type , endianness endian, std::size_t alignment>

value_type llvm::support::endian::readAtBitAlignment ( const void *  memory, uint64_t  startBit  )

inline

Read a value of a particular endianness from memory, for a location that starts at the given bit offset within the first byte.

Definition at line 116 of file Endian.h.

References assert(), and LLVM_ASSUME_ALIGNED.

readNext() [1/2]

template<typename value_type , endianness endian, std::size_t alignment, typename CharT >

value_type llvm::support::endian::readNext ( const CharT *&  memory )

inline

Definition at line 90 of file Endian.h.

readNext() [2/2]

template<typename value_type , std::size_t alignment, typename CharT >

value_type llvm::support::endian::readNext ( const CharT *&  memory, endianness  endian  )

inline

Read a value of a particular endianness from a buffer, and increment the buffer past that value.

Definition at line 81 of file Endian.h.

system_endianness()

constexpr endianness llvm::support::endian::system_endianness ( )

constexpr

Definition at line 44 of file Endian.h.

References llvm::support::big, llvm::sys::IsBigEndianHost, and llvm::support::little.

Referenced by llvm::HashBuilderImpl< HasherT, Endianness >::add(), byte_swap(), llvm::gsym::FunctionInfo::cacheEncoding(), llvm::gsym::FunctionInfo::encode(), and llvm::dwarflinker_parallel::DWARFLinkerImpl::link().

write() [1/6]

template<typename value_type >

void llvm::support::endian::write ( raw_ostream &  os, ArrayRef< value_type >  vals, endianness  endian  )

inline

Definition at line 55 of file EndianStream.h.

References write().

write() [2/6]

template<typename value_type >

void llvm::support::endian::write ( raw_ostream &  os, value_type  value, endianness  endian  )

inline

Definition at line 38 of file EndianStream.h.

References value, and llvm::raw_ostream::write().

write() [3/6]

template<typename value_type >

void llvm::support::endian::write ( SmallVectorImpl< char > &  Out, value_type  V, endianness  E  )

inline

Definition at line 62 of file EndianStream.h.

References llvm::SmallVectorImpl< T >::append(), and E.

write() [4/6]

template<typename value_type , endianness endian, std::size_t alignment>

void llvm::support::endian::write ( void *  memory, value_type  value  )

inline

Definition at line 106 of file Endian.h.

References value.

write() [5/6]

template<typename value_type , std::size_t alignment = unaligned>

void llvm::support::endian::write ( void *  memory, value_type  value, endianness  endian  )

inline

Write a value to memory with a particular endianness.

Definition at line 96 of file Endian.h.

References LLVM_ASSUME_ALIGNED, and value.

Referenced by llvm::dwarflinker_parallel::SectionDescriptor::applyIntVal(), emitOperand(), llvm::MSP430MCCodeEmitter::encodeInstruction(), print(), printLE(), llvm::support::endian::Writer::write(), write(), llvm::mcdxbc::PSVRuntimeInfo::write(), write< double >(), write< float >(), writeData(), llvm::ARMAsmBackend::writeNopData(), and llvm::MachObjectWriter::writeObject().

write() [6/6]

template<typename T , endianness E>

void llvm::support::endian::write ( void *  P, T  V  )

inline

Definition at line 389 of file Endian.h.

References P.

write16() [1/2]

template<endianness E>

void llvm::support::endian::write16 ( void *  P, uint16_t  V  )

inline

Definition at line 403 of file Endian.h.

References P.

write16() [2/2]

void llvm::support::endian::write16 ( void *  P, uint16_t  V, endianness  E  )

inline

Definition at line 393 of file Endian.h.

References E, and P.

write16be()

void llvm::support::endian::write16be ( void *  P, uint16_t  V  )

inline

Definition at line 416 of file Endian.h.

References P.

write16le()

void llvm::support::endian::write16le ( void *  P, uint16_t  V  )

inline

Definition at line 413 of file Endian.h.

References P.

Referenced by llvm::add16(), and llvm::jitlink::finalizeBlockRelax().

write32() [1/2]

template<endianness E>

void llvm::support::endian::write32 ( void *  P, uint32_t  V  )

inline

Definition at line 406 of file Endian.h.

References P.

write32() [2/2]

void llvm::support::endian::write32 ( void *  P, uint32_t  V, endianness  E  )

inline

Definition at line 396 of file Endian.h.

References E, and P.

write32be()

void llvm::support::endian::write32be ( void *  P, uint32_t  V  )

inline

Definition at line 417 of file Endian.h.

References P.

Referenced by llvm::StringTableBuilder::write().

write32le()

void llvm::support::endian::write32le ( void *  P, uint32_t  V  )

inline

Definition at line 414 of file Endian.h.

References P, and write32le().

Referenced by llvm::computeLTOCacheKey(), llvm::objcopy::coff::createGnuDebugLinkSectionContents(), llvm::MD5::final(), llvm::jitlink::finalizeBlockRelax(), getSourceLineHash(), or32le(), llvm::or32le(), llvm::RuntimeDyldCOFFAArch64::resolveRelocation(), llvm::objcopy::wasm::Writer::write(), llvm::StringTableBuilder::write(), write32AArch64Addr(), llvm::write32AArch64Addr(), llvm::write32AArch64Imm(), write32le(), writeInt32ToBuffer(), llvm::object::writeStringTable(), and writeUint32().

write64() [1/2]

template<endianness E>

void llvm::support::endian::write64 ( void *  P, uint64_t  V  )

inline

Definition at line 409 of file Endian.h.

References P.

write64() [2/2]

void llvm::support::endian::write64 ( void *  P, uint64_t  V, endianness  E  )

inline

Definition at line 399 of file Endian.h.

References E, and P.

write64be()

void llvm::support::endian::write64be ( void *  P, uint64_t  V  )

inline

Definition at line 418 of file Endian.h.

References P.

write64le()

void llvm::support::endian::write64le ( void *  P, uint64_t  V  )

inline

Definition at line 415 of file Endian.h.

References P.

Referenced by llvm::computeLTOCacheKey(), emitStrTab(), emitVersion(), llvm::BlockCoverageInference::getInstrumentedBlocksHash(), llvm::sampleprof::SampleProfileReaderExtBinaryBase::readNameTableSec(), llvm::sampleprof::SampleProfileReaderBinary::readSampleContextFromTable(), llvm::RuntimeDyldCOFFAArch64::resolveRelocation(), and writeUint64().

write< double >()

template<>

void llvm::support::endian::write< double > ( raw_ostream &  os, double  value, endianness  endian  )

inline

Definition at line 49 of file EndianStream.h.

References value, and write().

write< float >()

template<>

void llvm::support::endian::write< float > ( raw_ostream &  os, float  value, endianness  endian  )

inline

Definition at line 44 of file EndianStream.h.

References value, and write().

write_array()

template<typename value_type >

void llvm::support::endian::write_array ( raw_ostream &  os, ArrayRef< value_type >  values, endianness  endian  )

inline

Definition at line 29 of file EndianStream.h.

References value, values(), and llvm::raw_ostream::write().

Referenced by llvm::mcdxbc::PSVRuntimeInfo::write().

writeAtBitAlignment()

template<typename value_type , endianness endian, std::size_t alignment>

void llvm::support::endian::writeAtBitAlignment ( void *  memory, value_type  value, uint64_t  startBit  )

inline

Write a value to memory with a particular endianness, for a location that starts at the given bit offset within the first byte.

Definition at line 151 of file Endian.h.

References assert(), LLVM_ASSUME_ALIGNED, and value.