llvm::MCSubtargetInfo Class Reference

Generic base class for all target subtargets. More...

#include "llvm/MC/MCSubtargetInfo.h"

Inheritance diagram for llvm::MCSubtargetInfo:

Public Member Functions
	MCSubtargetInfo (const MCSubtargetInfo &)=default
	MCSubtargetInfo (const Triple &TT, StringRef CPU, StringRef TuneCPU, StringRef FS, ArrayRef< SubtargetFeatureKV > PF, ArrayRef< SubtargetSubTypeKV > PD, const MCWriteProcResEntry *WPR, const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA, const InstrStage *IS, const unsigned *OC, const unsigned *FP)
	MCSubtargetInfo ()=delete
MCSubtargetInfo &	operator= (const MCSubtargetInfo &)=delete
MCSubtargetInfo &	operator= (MCSubtargetInfo &&)=delete
virtual	~MCSubtargetInfo ()=default
const Triple &	getTargetTriple () const
StringRef	getCPU () const
StringRef	getTuneCPU () const
const FeatureBitset &	getFeatureBits () const
void	setFeatureBits (const FeatureBitset &FeatureBits_)
StringRef	getFeatureString () const
bool	hasFeature (unsigned Feature) const
void	setDefaultFeatures (StringRef CPU, StringRef TuneCPU, StringRef FS)
	Set the features to the default for the given CPU and TuneCPU, with ano appended feature string. More...
FeatureBitset	ToggleFeature (uint64_t FB)
	Toggle a feature and return the re-computed feature bits. More...
FeatureBitset	ToggleFeature (const FeatureBitset &FB)
	Toggle a feature and return the re-computed feature bits. More...
FeatureBitset	ToggleFeature (StringRef FS)
	Toggle a set of features and return the re-computed feature bits. More...
FeatureBitset	ApplyFeatureFlag (StringRef FS)
	Apply a feature flag and return the re-computed feature bits, including all feature bits implied by the flag. More...
FeatureBitset	SetFeatureBitsTransitively (const FeatureBitset &FB)
	Set/clear additional feature bits, including all other bits they imply. More...
FeatureBitset	ClearFeatureBitsTransitively (const FeatureBitset &FB)
bool	checkFeatures (StringRef FS) const
	Check whether the subtarget features are enabled/disabled as per the provided string, ignoring all other features. More...
const MCSchedModel &	getSchedModelForCPU (StringRef CPU) const
	Get the machine model of a CPU. More...
const MCSchedModel &	getSchedModel () const
	Get the machine model for this subtarget's CPU. More...
const MCWriteProcResEntry *	getWriteProcResBegin (const MCSchedClassDesc *SC) const
	Return an iterator at the first process resource consumed by the given scheduling class. More...
const MCWriteProcResEntry *	getWriteProcResEnd (const MCSchedClassDesc *SC) const
const MCWriteLatencyEntry *	getWriteLatencyEntry (const MCSchedClassDesc *SC, unsigned DefIdx) const
int	getReadAdvanceCycles (const MCSchedClassDesc *SC, unsigned UseIdx, unsigned WriteResID) const
ArrayRef< MCReadAdvanceEntry >	getReadAdvanceEntries (const MCSchedClassDesc &SC) const
	Return the set of ReadAdvance entries declared by the scheduling class descriptor in input. More...
InstrItineraryData	getInstrItineraryForCPU (StringRef CPU) const
	Get scheduling itinerary of a CPU. More...
void	initInstrItins (InstrItineraryData &InstrItins) const
	Initialize an InstrItineraryData instance. More...
virtual unsigned	resolveVariantSchedClass (unsigned SchedClass, const MCInst *MI, const MCInstrInfo *MCII, unsigned CPUID) const
	Resolve a variant scheduling class for the given MCInst and CPU. More...
bool	isCPUStringValid (StringRef CPU) const
	Check whether the CPU string is valid. More...
virtual unsigned	getHwMode () const
virtual Optional< unsigned >	getCacheSize (unsigned Level) const
	Return the cache size in bytes for the given level of cache. More...
virtual Optional< unsigned >	getCacheAssociativity (unsigned Level) const
	Return the cache associatvity for the given level of cache. More...
virtual Optional< unsigned >	getCacheLineSize (unsigned Level) const
	Return the target cache line size in bytes at a given level. More...
virtual unsigned	getCacheLineSize () const
	Return the target cache line size in bytes. More...
virtual unsigned	getPrefetchDistance () const
	Return the preferred prefetch distance in terms of instructions. More...
virtual unsigned	getMaxPrefetchIterationsAhead () const
	Return the maximum prefetch distance in terms of loop iterations. More...
virtual bool	enableWritePrefetching () const
virtual unsigned	getMinPrefetchStride (unsigned NumMemAccesses, unsigned NumStridedMemAccesses, unsigned NumPrefetches, bool HasCall) const
	Return the minimum stride necessary to trigger software prefetching. More...

Protected Member Functions
void	InitMCProcessorInfo (StringRef CPU, StringRef TuneCPU, StringRef FS)
	Initialize the scheduling model and feature bits. More...

Detailed Description

Generic base class for all target subtargets.

Definition at line 75 of file MCSubtargetInfo.h.

Constructor & Destructor Documentation

MCSubtargetInfo() [1/3]

llvm::MCSubtargetInfo::MCSubtargetInfo ( const MCSubtargetInfo &  )

default

MCSubtargetInfo() [2/3]

MCSubtargetInfo::MCSubtargetInfo	(	const Triple &	TT,
		StringRef	CPU,
		StringRef	TuneCPU,
		StringRef	FS,
		ArrayRef< SubtargetFeatureKV >	PF,
		ArrayRef< SubtargetSubTypeKV >	PD,
		const MCWriteProcResEntry *	WPR,
		const MCWriteLatencyEntry *	WL,
		const MCReadAdvanceEntry *	RA,
		const InstrStage *	IS,
		const unsigned *	OC,
		const unsigned *	FP
	)

Definition at line 225 of file MCSubtargetInfo.cpp.

References FP, llvm::X86AS::FS, InitMCProcessorInfo(), and string.

MCSubtargetInfo() [3/3]

llvm::MCSubtargetInfo::MCSubtargetInfo ( )

delete

~MCSubtargetInfo()

virtual llvm::MCSubtargetInfo::~MCSubtargetInfo ( )

virtualdefault

Member Function Documentation

ApplyFeatureFlag()

FeatureBitset MCSubtargetInfo::ApplyFeatureFlag

(

StringRef

FS

)

Apply a feature flag and return the re-computed feature bits, including all feature bits implied by the flag.

Definition at line 292 of file MCSubtargetInfo.cpp.

References llvm::X86AS::FS.

Referenced by checkFeatures().

checkFeatures()

bool MCSubtargetInfo::checkFeatures

(

StringRef

FS

)

const

Check whether the subtarget features are enabled/disabled as per the provided string, ignoring all other features.

Definition at line 297 of file MCSubtargetInfo.cpp.

References ApplyFeatureFlag(), F, llvm::X86AS::FS, and T.

ClearFeatureBitsTransitively()

FeatureBitset MCSubtargetInfo::ClearFeatureBitsTransitively

(

const FeatureBitset &

FB

)

Definition at line 256 of file MCSubtargetInfo.cpp.

References ClearImpliedBits(), E, I, llvm::FeatureBitset::reset(), and llvm::FeatureBitset::size().

enableWritePrefetching()

bool MCSubtargetInfo::enableWritePrefetching ( ) const

virtual

Returns

True if prefetching should also be done for writes.

Definition at line 359 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::enableWritePrefetching().

getCacheAssociativity()

Optional< unsigned > MCSubtargetInfo::getCacheAssociativity ( unsigned  Level ) const

virtual

Return the cache associatvity for the given level of cache.

Level is zero-based, so a value of zero means the first level of cache.

Definition at line 343 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCacheAssociativity().

getCacheLineSize() [1/2]

virtual unsigned llvm::MCSubtargetInfo::getCacheLineSize ( ) const

inlinevirtual

Return the target cache line size in bytes.

By default, return the line size for the bottom-most level of cache. This provides a more convenient interface for the common case where all cache levels have the same line size. Return zero if there is no cache model.

Definition at line 256 of file MCSubtargetInfo.h.

References llvm::Check::Size.

getCacheLineSize() [2/2]

Optional< unsigned > MCSubtargetInfo::getCacheLineSize ( unsigned  Level ) const

virtual

Return the target cache line size in bytes at a given level.

Definition at line 347 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getCacheLineSize().

getCacheSize()

Optional< unsigned > MCSubtargetInfo::getCacheSize ( unsigned  Level ) const

virtual

Return the cache size in bytes for the given level of cache.

Level is zero-based, so a value of zero means the first level of cache.

Definition at line 338 of file MCSubtargetInfo.cpp.

getCPU()

StringRef llvm::MCSubtargetInfo::getCPU ( ) const

inline

Definition at line 108 of file MCSubtargetInfo.h.

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::createHexagonAsmBackend(), llvm::createMipsAsmBackend(), llvm::AMDGPUTargetAsmStreamer::EmitAmdhsaKernelDescriptor(), llvm::ARMTargetStreamer::emitTargetAttributes(), llvm::AMDGPU::IsaInfo::getAddressableNumSGPRs(), getArchForCPU(), llvm::Hexagon_MC::getArchSubtarget(), llvm::AMDGPU::getDefaultAmdhsaKernelDescriptor(), llvm::Hexagon_MC::GetELFFlags(), llvm::AMDGPU::IsaInfo::getMaxNumSGPRs(), llvm::AMDGPU::IsaInfo::getMinNumSGPRs(), llvm::AMDGPU::IsaInfo::getNumExtraSGPRs(), llvm::AMDGPU::IsaInfo::getSGPRAllocGranule(), llvm::AMDGPU::IsaInfo::getTotalNumSGPRs(), llvm::AMDGPU::initDefaultAMDKernelCodeT(), llvm::HexagonMCInstrInfo::isOrderedDuplexPair(), llvm::AMDGPUInstPrinter::printWaitFlag(), and llvm::AMDGPU::IsaInfo::AMDGPUTargetID::toString().

getFeatureBits()

const FeatureBitset& llvm::MCSubtargetInfo::getFeatureBits ( ) const

inline

Definition at line 111 of file MCSubtargetInfo.h.

Referenced by llvm::ARMAsmBackend::adjustFixupValue(), llvm::AMDGPUDisassembler::AMDGPUDisassembler(), llvm::AMDGPU::IsaInfo::AMDGPUTargetID::AMDGPUTargetID(), llvm::AVRELFStreamer::AVRELFStreamer(), checkFeature(), clearFeature(), llvm::AMDGPUDisassembler::convertMIMGInst(), llvm::AMDGPUDisassembler::convertSDWAInst(), llvm::AMDGPUDisassembler::decodeBoolReg(), DecodeHINTInstruction(), llvm::AMDGPUDisassembler::decodeSDWASrc(), llvm::AMDGPUDisassembler::decodeSDWAVopcDst(), DecodeSETPANInstruction(), DecodeSystemPStateInstruction(), llvm::HexagonMCCodeEmitter::encodeInstruction(), llvm::PPCMCCodeEmitter::encodeInstruction(), llvm::MipsTargetELFStreamer::finish(), llvm::AMDGPU::IsaInfo::getAddressableNumSGPRs(), llvm::AMDGPU::IsaInfo::getAddressableNumVGPRs(), getARMLoadDeprecationInfo(), getARMStoreDeprecationInfo(), llvm::AMDGPU::getDefaultAmdhsaKernelDescriptor(), llvm::AMDGPU::IsaInfo::getEUsPerCU(), llvm::AMDGPUDisassembler::getInstruction(), getITDeprecationInfo(), getLit16Encoding(), getLit32Encoding(), getLit64Encoding(), llvm::AMDGPU::IsaInfo::getLocalMemorySize(), llvm::AMDGPUMCAsmInfo::getMaxInstLength(), llvm::AMDGPU::IsaInfo::getMaxNumSGPRs(), getMCRDeprecationInfo(), llvm::AMDGPU::IsaInfo::getMinNumSGPRs(), getMRCDeprecationInfo(), llvm::AMDGPU::IsaInfo::getNumExtraSGPRs(), llvm::ARMAsmBackend::getRelaxedOpcode(), llvm::AMDGPU::IsaInfo::getTotalNumVGPRs(), llvm::AMDGPU::IsaInfo::getVGPRAllocGranule(), llvm::AMDGPU::IsaInfo::getVGPREncodingGranule(), llvm::AMDGPU::IsaInfo::getWavefrontSize(), llvm::AMDGPUDisassembler::hasArchitectedFlatScratch(), llvm::AMDGPU::hasArchitectedFlatScratch(), llvm::AMDGPU::hasG16(), llvm::AMDGPU::hasGFX10_3Insts(), llvm::AMDGPU::hasGFX10A16(), llvm::AMDGPU::hasMIMG_R128(), llvm::ARMAsmBackend::hasNOP(), llvm::AMDGPU::hasPackedD16(), llvm::AMDGPU::hasSRAMECC(), llvm::AMDGPU::hasXNACK(), llvm::AMDGPU::initDefaultAMDKernelCodeT(), llvm::ARM::isCDECoproc(), llvm::AMDGPU::isCI(), isFullyRelaxed(), llvm::AMDGPU::isGCN3Encoding(), llvm::AMDGPU::isGFX10(), llvm::AMDGPU::isGFX10_BEncoding(), llvm::AMDGPU::isGFX9(), llvm::AMDGPUDisassembler::isGFX90A(), llvm::AMDGPU::isGFX90A(), isMicroMips(), llvm::AMDGPU::isSI(), isThumb(), llvm::SparcInstPrinter::isV9(), llvm::AMDGPUDisassembler::isVI(), llvm::AMDGPU::isVI(), llvm::RISCVTargetLowering::LowerFormalArguments(), matchAliasCondition(), llvm::MipsTargetELFStreamer::MipsTargetELFStreamer(), llvm::HexagonMCInstrInfo::packetSizeSlots(), llvm::RISCVInstPrinter::printCSRSystemRegister(), llvm::X86ATTInstPrinter::printInst(), llvm::AArch64InstPrinter::printInst(), llvm::X86IntelInstPrinter::printInst(), llvm::PPCInstPrinter::printInst(), llvm::ARMInstPrinter::printMemBOption(), llvm::AArch64InstPrinter::printMRSSystemRegister(), llvm::ARMInstPrinter::printMSRMaskOperand(), llvm::AArch64InstPrinter::printMSRSystemRegister(), llvm::AArch64InstPrinter::printSysAlias(), llvm::AArch64InstPrinter::printSystemPStateField(), llvm::HexagonMCInstrInfo::requiresSlot(), llvm::RISCVAsmBackend::RISCVAsmBackend(), llvm::RISCVTargetELFStreamer::RISCVTargetELFStreamer(), llvm::RISCVAsmBackend::shouldForceRelocation(), llvm::RISCVAsmBackend::shouldInsertExtraNopBytesForCodeAlign(), llvm::RISCVAsmBackend::shouldInsertFixupForCodeAlign(), llvm::RISCVAsmBackend::willForceRelocations(), and llvm::RISCVAsmBackend::writeNopData().

getFeatureString()

StringRef llvm::MCSubtargetInfo::getFeatureString ( ) const

inline

Definition at line 116 of file MCSubtargetInfo.h.

getHwMode()

virtual unsigned llvm::MCSubtargetInfo::getHwMode ( ) const

inlinevirtual

Definition at line 232 of file MCSubtargetInfo.h.

getInstrItineraryForCPU()

InstrItineraryData MCSubtargetInfo::getInstrItineraryForCPU

(

StringRef

CPU

)

const

Get scheduling itinerary of a CPU.

Definition at line 328 of file MCSubtargetInfo.cpp.

References getSchedModelForCPU().

Referenced by getItineraryLatency().

getMaxPrefetchIterationsAhead()

unsigned MCSubtargetInfo::getMaxPrefetchIterationsAhead ( ) const

virtual

Return the maximum prefetch distance in terms of loop iterations.

Definition at line 355 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getMaxPrefetchIterationsAhead().

getMinPrefetchStride()

unsigned MCSubtargetInfo::getMinPrefetchStride ( unsigned  NumMemAccesses, unsigned  NumStridedMemAccesses, unsigned  NumPrefetches, bool  HasCall  ) const

virtual

Return the minimum stride necessary to trigger software prefetching.

Definition at line 363 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getMinPrefetchStride().

getPrefetchDistance()

unsigned MCSubtargetInfo::getPrefetchDistance ( ) const

virtual

Return the preferred prefetch distance in terms of instructions.

Definition at line 351 of file MCSubtargetInfo.cpp.

Referenced by llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getPrefetchDistance().

getReadAdvanceCycles()

int llvm::MCSubtargetInfo::getReadAdvanceCycles ( const MCSchedClassDesc *  SC, unsigned  UseIdx, unsigned  WriteResID  ) const

inline

Definition at line 183 of file MCSubtargetInfo.h.

References E, I, and llvm::PPCISD::SC.

Referenced by llvm::mca::RegisterFile::addRegisterRead(), llvm::mca::checkRegisterHazard(), llvm::mca::RegisterFile::collectWrites(), and llvm::TargetSchedModel::computeOperandLatency().

getReadAdvanceEntries()

ArrayRef<MCReadAdvanceEntry> llvm::MCSubtargetInfo::getReadAdvanceEntries ( const MCSchedClassDesc &  SC ) const

inline

Return the set of ReadAdvance entries declared by the scheduling class descriptor in input.

Definition at line 205 of file MCSubtargetInfo.h.

References llvm::PPCISD::SC.

getSchedModel()

const MCSchedModel& llvm::MCSubtargetInfo::getSchedModel ( ) const

inline

Get the machine model for this subtarget's CPU.

Definition at line 162 of file MCSubtargetInfo.h.

Referenced by llvm::mca::RegisterFile::addRegisterRead(), llvm::mca::RegisterFile::collectWrites(), llvm::mca::Context::createDefaultPipeline(), llvm::mca::Context::createInOrderPipeline(), llvm::mca::InstrBuilder::createInstruction(), llvm::mca::DispatchStage::DispatchStage(), llvm::TargetSubtargetInfo::enablePostRAScheduler(), llvm::HexagonMCInstrInfo::getCVIResources(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getInstructionLatency(), getLatency(), llvm::HexagonMCInstrInfo::getOtherReservedSlots(), llvm::MCSchedModel::getReciprocalThroughput(), llvm::HexagonMCInstrInfo::getUnits(), llvm::TargetSchedModel::init(), llvm::mca::initializeUsedResources(), initInstrItins(), and llvm::mca::InstrBuilder::InstrBuilder().

getSchedModelForCPU()

const MCSchedModel & MCSubtargetInfo::getSchedModelForCPU

(

StringRef

CPU

)

const

Get the machine model of a CPU.

Definition at line 309 of file MCSubtargetInfo.cpp.

References assert(), llvm::errs(), Find(), llvm::MCSchedModel::GetDefaultSchedModel(), llvm::is_sorted(), and llvm::SubtargetSubTypeKV::SchedModel.

Referenced by getInstrItineraryForCPU(), and InitMCProcessorInfo().

getTargetTriple()

const Triple& llvm::MCSubtargetInfo::getTargetTriple ( ) const

inline

Definition at line 107 of file MCSubtargetInfo.h.

Referenced by llvm::Hexagon_MC::addArchSubtarget(), llvm::ARMAsmBackend::adjustFixupValue(), llvm::createAArch64beAsmBackend(), llvm::createAArch64leAsmBackend(), llvm::createAArch64ObjectTargetStreamer(), llvm::createAMDGPUAsmBackend(), createARMAsmBackend(), llvm::createARMObjectTargetStreamer(), createAsmBackend(), llvm::createAVRAsmBackend(), llvm::createHexagonAsmBackend(), llvm::createLanaiAsmBackend(), llvm::createM68kAsmBackend(), llvm::createMipsAsmBackend(), llvm::createMSP430ObjectTargetStreamer(), createObjectTargetStreamer(), llvm::createPPCAsmBackend(), llvm::createRISCVAsmBackend(), createRISCVObjectTargetStreamer(), llvm::createSparcAsmBackend(), llvm::createSystemZMCAsmBackend(), llvm::createVEAsmBackend(), llvm::createX86_32AsmBackend(), llvm::createX86_64AsmBackend(), llvm::createX86ObjectTargetStreamer(), llvm::AMDGPUAsmPrinter::doFinalization(), llvm::AsmPrinter::emitXRayTable(), llvm::ARMAsmBackend::getFixupKind(), llvm::RISCVAsmBackend::getFixupKind(), llvm::AMDGPU::getHsaAbiVersion(), llvm::AMDGPUMCAsmInfo::getMaxInstLength(), llvm::AMDGPU::IsaInfo::getMaxWorkGroupsPerCU(), llvm::AMDGPU::getMCReg(), llvm::PPCMCCodeEmitter::getTLSRegEncoding(), lowerMSASplatZExt(), llvm::MipsTargetELFStreamer::MipsTargetELFStreamer(), llvm::RISCVAsmBackend::RISCVAsmBackend(), llvm::AMDGPU::IsaInfo::AMDGPUTargetID::toString(), truncateVecElts(), and llvm::DwarfCompileUnit::updateSubprogramScopeDIE().

getTuneCPU()

StringRef llvm::MCSubtargetInfo::getTuneCPU ( ) const

inline

Definition at line 109 of file MCSubtargetInfo.h.

getWriteLatencyEntry()

const MCWriteLatencyEntry* llvm::MCSubtargetInfo::getWriteLatencyEntry ( const MCSchedClassDesc *  SC, unsigned  DefIdx  ) const

inline

Definition at line 175 of file MCSubtargetInfo.h.

References assert(), and llvm::PPCISD::SC.

Referenced by llvm::MCSchedModel::computeInstrLatency(), llvm::TargetSchedModel::computeOperandLatency(), and getLatency().

getWriteProcResBegin()

const MCWriteProcResEntry* llvm::MCSubtargetInfo::getWriteProcResBegin ( const MCSchedClassDesc *  SC ) const

inline

Return an iterator at the first process resource consumed by the given scheduling class.

Definition at line 166 of file MCSubtargetInfo.h.

References llvm::PPCISD::SC.

Referenced by llvm::ResourceManager::canReserveResources(), llvm::TargetSchedModel::computeOutputLatency(), llvm::MCSchedModel::getReciprocalThroughput(), llvm::TargetSchedModel::getWriteProcResBegin(), getWriteProcResEnd(), llvm::mca::initializeUsedResources(), and llvm::ResourceManager::reserveResources().

getWriteProcResEnd()

const MCWriteProcResEntry* llvm::MCSubtargetInfo::getWriteProcResEnd ( const MCSchedClassDesc *  SC ) const

inline

Definition at line 170 of file MCSubtargetInfo.h.

References getWriteProcResBegin(), and llvm::PPCISD::SC.

Referenced by llvm::ResourceManager::canReserveResources(), llvm::TargetSchedModel::computeOutputLatency(), llvm::MCSchedModel::getReciprocalThroughput(), llvm::TargetSchedModel::getWriteProcResEnd(), and llvm::ResourceManager::reserveResources().

hasFeature()

bool llvm::MCSubtargetInfo::hasFeature ( unsigned  Feature ) const

inline

Definition at line 118 of file MCSubtargetInfo.h.

Referenced by llvm::RISCVTargetStreamer::emitTargetAttributes(), llvm::ARMTargetStreamer::emitTargetAttributes(), getArchForCPU(), llvm::ARMElfTargetObjectFile::Initialize(), is16BitMemOperand(), isV8M(), and llvm::RISCVInstPrinter::printBranchOperand().

initInstrItins()

void MCSubtargetInfo::initInstrItins

(

InstrItineraryData &

InstrItins

)

const

Initialize an InstrItineraryData instance.

Definition at line 333 of file MCSubtargetInfo.cpp.

References getSchedModel().

Referenced by llvm::TargetSchedModel::init().

InitMCProcessorInfo()

void MCSubtargetInfo::InitMCProcessorInfo ( StringRef  CPU, StringRef  TuneCPU, StringRef  FS  )

protected

Initialize the scheduling model and feature bits.

FIXME: Find a way to stick this in the constructor, since it should only be called during initialization.

Definition at line 208 of file MCSubtargetInfo.cpp.

References llvm::StringRef::empty(), llvm::X86AS::FS, llvm::MCSchedModel::GetDefaultSchedModel(), getFeatures(), and getSchedModelForCPU().

Referenced by MCSubtargetInfo().

isCPUStringValid()

bool llvm::MCSubtargetInfo::isCPUStringValid ( StringRef  CPU ) const

inline

Check whether the CPU string is valid.

Definition at line 227 of file MCSubtargetInfo.h.

References llvm::ArrayRef< T >::end(), and llvm::lower_bound().

operator=() [1/2]

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

delete

operator=() [2/2]

MCSubtargetInfo& llvm::MCSubtargetInfo::operator= ( MCSubtargetInfo &&  )

delete

resolveVariantSchedClass()

virtual unsigned llvm::MCSubtargetInfo::resolveVariantSchedClass ( unsigned  SchedClass, const MCInst *  MI, const MCInstrInfo *  MCII, unsigned  CPUID  ) const

inlinevirtual

Resolve a variant scheduling class for the given MCInst and CPU.

Definition at line 219 of file MCSubtargetInfo.h.

Referenced by llvm::MCSchedModel::computeInstrLatency(), and llvm::MCSchedModel::getReciprocalThroughput().

setDefaultFeatures()

void MCSubtargetInfo::setDefaultFeatures	(	StringRef	CPU,
		StringRef	TuneCPU,
		StringRef	FS
	)

Set the features to the default for the given CPU and TuneCPU, with ano appended feature string.

Definition at line 219 of file MCSubtargetInfo.cpp.

References llvm::X86AS::FS, and getFeatures().

setFeatureBits()

void llvm::MCSubtargetInfo::setFeatureBits ( const FeatureBitset &  FeatureBits_ )

inline

Definition at line 112 of file MCSubtargetInfo.h.

SetFeatureBitsTransitively()

FeatureBitset MCSubtargetInfo::SetFeatureBitsTransitively

(

const FeatureBitset &

FB

)

Set/clear additional feature bits, including all other bits they imply.

Definition at line 250 of file MCSubtargetInfo.cpp.

References SetImpliedBits().

ToggleFeature() [1/3]

FeatureBitset MCSubtargetInfo::ToggleFeature

(

const FeatureBitset &

FB

)

Toggle a feature and return the re-computed feature bits.

This version does not change the implied bits.

Definition at line 245 of file MCSubtargetInfo.cpp.

ToggleFeature() [2/3]

FeatureBitset MCSubtargetInfo::ToggleFeature

(

StringRef

FS

)

Toggle a set of features and return the re-computed feature bits.

This version will also change all implied bits.

Definition at line 267 of file MCSubtargetInfo.cpp.

References ClearImpliedBits(), llvm::errs(), Find(), llvm::FeatureBitArray::getAsBitset(), llvm::SubtargetFeatureKV::Implies, llvm::FeatureBitset::reset(), llvm::FeatureBitset::set(), SetImpliedBits(), llvm::SubtargetFeatures::StripFlag(), llvm::FeatureBitset::test(), and llvm::SubtargetFeatureKV::Value.

ToggleFeature() [3/3]

FeatureBitset MCSubtargetInfo::ToggleFeature

(

uint64_t

FB

)

Toggle a feature and return the re-computed feature bits.

This version does not change the implied bits.

Definition at line 240 of file MCSubtargetInfo.cpp.

References llvm::FeatureBitset::flip().

Referenced by clearFeature().

---

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

• include/llvm/MC/MCSubtargetInfo.h
• lib/MC/MCSubtargetInfo.cpp