LLVM 20.0.0git
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TargetSubtargetInfo - Generic base class for all target subtargets. More...
#include "llvm/CodeGen/TargetSubtargetInfo.h"
Public Types | |
using | AntiDepBreakMode = enum { ANTIDEP_NONE, ANTIDEP_CRITICAL, ANTIDEP_ALL } |
using | RegClassVector = SmallVectorImpl< const TargetRegisterClass * > |
Public Types inherited from llvm::MCSubtargetInfo | |
enum | HwModeType { HwMode_Default , HwMode_ValueType , HwMode_RegInfo , HwMode_EncodingInfo } |
HwMode IDs are stored and accessed in a bit set format, enabling users to efficiently retrieve specific IDs, such as the RegInfo HwMode ID, from the set as required. More... | |
Public Member Functions | |
TargetSubtargetInfo ()=delete | |
TargetSubtargetInfo (const TargetSubtargetInfo &)=delete | |
TargetSubtargetInfo & | operator= (const TargetSubtargetInfo &)=delete |
~TargetSubtargetInfo () override | |
virtual bool | isXRaySupported () const |
virtual const TargetInstrInfo * | getInstrInfo () const |
virtual const TargetFrameLowering * | getFrameLowering () const |
virtual const TargetLowering * | getTargetLowering () const |
virtual const SelectionDAGTargetInfo * | getSelectionDAGInfo () const |
virtual const CallLowering * | getCallLowering () const |
virtual const InlineAsmLowering * | getInlineAsmLowering () const |
virtual InstructionSelector * | getInstructionSelector () const |
virtual RegisterScheduler::FunctionPassCtor | getDAGScheduler (CodeGenOptLevel) const |
Target can subclass this hook to select a different DAG scheduler. | |
virtual const LegalizerInfo * | getLegalizerInfo () const |
virtual const TargetRegisterInfo * | getRegisterInfo () const |
getRegisterInfo - If register information is available, return it. | |
virtual const RegisterBankInfo * | getRegBankInfo () const |
If the information for the register banks is available, return it. | |
virtual const InstrItineraryData * | getInstrItineraryData () const |
getInstrItineraryData - Returns instruction itinerary data for the target or specific subtarget. | |
virtual unsigned | resolveSchedClass (unsigned SchedClass, const MachineInstr *MI, const TargetSchedModel *SchedModel) const |
Resolve a SchedClass at runtime, where SchedClass identifies an MCSchedClassDesc with the isVariant property. | |
virtual bool | isZeroIdiom (const MachineInstr *MI, APInt &Mask) const |
Returns true if MI is a dependency breaking zero-idiom instruction for the subtarget. | |
virtual bool | isDependencyBreaking (const MachineInstr *MI, APInt &Mask) const |
Returns true if MI is a dependency breaking instruction for the subtarget. | |
virtual bool | isOptimizableRegisterMove (const MachineInstr *MI) const |
Returns true if MI is a candidate for move elimination. | |
virtual bool | enableMachineScheduler () const |
True if the subtarget should run MachineScheduler after aggressive coalescing. | |
virtual bool | enableMachineSchedDefaultSched () const |
True if the machine scheduler should disable the TLI preference for preRA scheduling with the source level scheduler. | |
virtual bool | enableMachinePipeliner () const |
True if the subtarget should run MachinePipeliner. | |
virtual bool | enableWindowScheduler () const |
True if the subtarget should run WindowScheduler. | |
virtual bool | enableJoinGlobalCopies () const |
True if the subtarget should enable joining global copies. | |
virtual bool | enablePostRAScheduler () const |
True if the subtarget should run a scheduler after register allocation. | |
virtual bool | enablePostRAMachineScheduler () const |
True if the subtarget should run a machine scheduler after register allocation. | |
virtual bool | enableAtomicExpand () const |
True if the subtarget should run the atomic expansion pass. | |
virtual bool | enableIndirectBrExpand () const |
True if the subtarget should run the indirectbr expansion pass. | |
virtual void | overrideSchedPolicy (MachineSchedPolicy &Policy, unsigned NumRegionInstrs) const |
Override generic scheduling policy within a region. | |
virtual void | overridePostRASchedPolicy (MachineSchedPolicy &Policy, unsigned NumRegionInstrs) const |
Override generic post-ra scheduling policy within a region. | |
virtual void | adjustSchedDependency (SUnit *Def, int DefOpIdx, SUnit *Use, int UseOpIdx, SDep &Dep, const TargetSchedModel *SchedModel) const |
virtual AntiDepBreakMode | getAntiDepBreakMode () const |
virtual void | getCriticalPathRCs (RegClassVector &CriticalPathRCs) const |
virtual void | getPostRAMutations (std::vector< std::unique_ptr< ScheduleDAGMutation > > &Mutations) const |
virtual void | getSMSMutations (std::vector< std::unique_ptr< ScheduleDAGMutation > > &Mutations) const |
virtual bool | useDFAforSMS () const |
Default to DFA for resource management, return false when target will use ProcResource in InstrSchedModel instead. | |
virtual CodeGenOptLevel | getOptLevelToEnablePostRAScheduler () const |
virtual bool | enableRALocalReassignment (CodeGenOptLevel OptLevel) const |
True if the subtarget should run the local reassignment heuristic of the register allocator. | |
virtual bool | useAA () const |
Enable use of alias analysis during code generation (during MI scheduling, DAGCombine, etc.). | |
virtual bool | addrSinkUsingGEPs () const |
Sink addresses into blocks using GEP instructions rather than pointer casts and arithmetic. | |
virtual bool | enableEarlyIfConversion () const |
Enable the use of the early if conversion pass. | |
virtual std::unique_ptr< PBQPRAConstraint > | getCustomPBQPConstraints () const |
Return PBQPConstraint(s) for the target. | |
virtual bool | enableSubRegLiveness () const |
Enable tracking of subregister liveness in register allocator. | |
virtual void | mirFileLoaded (MachineFunction &MF) const |
This is called after a .mir file was loaded. | |
virtual bool | ignoreCSRForAllocationOrder (const MachineFunction &MF, unsigned PhysReg) const |
True if the register allocator should use the allocation orders exactly as written in the tablegen descriptions, false if it should allocate the specified physical register later if is it callee-saved. | |
virtual unsigned char | classifyGlobalFunctionReference (const GlobalValue *GV) const |
Classify a global function reference. | |
virtual bool | enableSpillageCopyElimination () const |
Enable spillage copy elimination in MachineCopyPropagation pass. | |
virtual std::vector< MacroFusionPredTy > | getMacroFusions () const |
Get the list of MacroFusion predicates. | |
virtual bool | requiresDisjointEarlyClobberAndUndef () const |
Whether the target has instructions where an early-clobber result operand cannot overlap with an undef input operand. | |
virtual bool | isRegisterReservedByUser (Register R) const |
Public Member Functions inherited from llvm::MCSubtargetInfo | |
MCSubtargetInfo (const MCSubtargetInfo &)=default | |
MCSubtargetInfo (const Triple &TT, StringRef CPU, StringRef TuneCPU, StringRef FS, ArrayRef< StringRef > PN, 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. | |
FeatureBitset | ToggleFeature (uint64_t FB) |
Toggle a feature and return the re-computed feature bits. | |
FeatureBitset | ToggleFeature (const FeatureBitset &FB) |
Toggle a feature and return the re-computed feature bits. | |
FeatureBitset | ToggleFeature (StringRef FS) |
Toggle a set of features and return the re-computed feature bits. | |
FeatureBitset | ApplyFeatureFlag (StringRef FS) |
Apply a feature flag and return the re-computed feature bits, including all feature bits implied by the flag. | |
FeatureBitset | SetFeatureBitsTransitively (const FeatureBitset &FB) |
Set/clear additional feature bits, including all other bits they imply. | |
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. | |
const MCSchedModel & | getSchedModelForCPU (StringRef CPU) const |
Get the machine model of a CPU. | |
const MCSchedModel & | getSchedModel () const |
Get the machine model for this subtarget's CPU. | |
const MCWriteProcResEntry * | getWriteProcResBegin (const MCSchedClassDesc *SC) const |
Return an iterator at the first process resource consumed by the given scheduling class. | |
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. | |
InstrItineraryData | getInstrItineraryForCPU (StringRef CPU) const |
Get scheduling itinerary of a CPU. | |
void | initInstrItins (InstrItineraryData &InstrItins) const |
Initialize an InstrItineraryData instance. | |
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. | |
virtual bool | isCPUStringValid (StringRef CPU) const |
Check whether the CPU string is valid. | |
ArrayRef< SubtargetSubTypeKV > | getAllProcessorDescriptions () const |
Return processor descriptions. | |
ArrayRef< SubtargetFeatureKV > | getAllProcessorFeatures () const |
Return processor features. | |
std::vector< SubtargetFeatureKV > | getEnabledProcessorFeatures () const |
Return the list of processor features currently enabled. | |
virtual unsigned | getHwModeSet () const |
Return a bit set containing all HwMode IDs of the current subtarget. | |
virtual unsigned | getHwMode (enum HwModeType type=HwMode_Default) const |
HwMode ID corresponding to the 'type' parameter is retrieved from the HwMode bit set of the current subtarget. | |
virtual std::optional< unsigned > | getCacheSize (unsigned Level) const |
Return the cache size in bytes for the given level of cache. | |
virtual std::optional< unsigned > | getCacheAssociativity (unsigned Level) const |
Return the cache associatvity for the given level of cache. | |
virtual std::optional< unsigned > | getCacheLineSize (unsigned Level) const |
Return the target cache line size in bytes at a given level. | |
virtual unsigned | getCacheLineSize () const |
Return the target cache line size in bytes. | |
virtual unsigned | getPrefetchDistance () const |
Return the preferred prefetch distance in terms of instructions. | |
virtual unsigned | getMaxPrefetchIterationsAhead () const |
Return the maximum prefetch distance in terms of loop iterations. | |
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. | |
virtual bool | shouldPrefetchAddressSpace (unsigned AS) const |
Protected Member Functions | |
TargetSubtargetInfo (const Triple &TT, StringRef CPU, StringRef TuneCPU, StringRef FS, ArrayRef< StringRef > PN, ArrayRef< SubtargetFeatureKV > PF, ArrayRef< SubtargetSubTypeKV > PD, const MCWriteProcResEntry *WPR, const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA, const InstrStage *IS, const unsigned *OC, const unsigned *FP) | |
Protected Member Functions inherited from llvm::MCSubtargetInfo | |
void | InitMCProcessorInfo (StringRef CPU, StringRef TuneCPU, StringRef FS) |
Initialize the scheduling model and feature bits. | |
TargetSubtargetInfo - Generic base class for all target subtargets.
All Target-specific options that control code generation and printing should be exposed through a TargetSubtargetInfo-derived class.
Definition at line 63 of file TargetSubtargetInfo.h.
using llvm::TargetSubtargetInfo::AntiDepBreakMode = enum { ANTIDEP_NONE, ANTIDEP_CRITICAL, ANTIDEP_ALL } |
Definition at line 77 of file TargetSubtargetInfo.h.
Definition at line 78 of file TargetSubtargetInfo.h.
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Definition at line 17 of file TargetSubtargetInfo.cpp.
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Sink addresses into blocks using GEP instructions rather than pointer casts and arithmetic.
Definition at line 301 of file TargetSubtargetInfo.h.
References useAA().
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Definition at line 251 of file TargetSubtargetInfo.h.
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Classify a global function reference.
This mainly used to fetch target special flags for lowering a function address. For example mark a function call should be plt or pc-related addressing.
Definition at line 335 of file TargetSubtargetInfo.h.
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True if the subtarget should run the atomic expansion pass.
Definition at line 28 of file TargetSubtargetInfo.cpp.
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Enable the use of the early if conversion pass.
Definition at line 306 of file TargetSubtargetInfo.h.
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True if the subtarget should run the indirectbr expansion pass.
Definition at line 32 of file TargetSubtargetInfo.cpp.
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True if the subtarget should enable joining global copies.
By default this is enabled if the machine scheduler is enabled, but can be overridden.
Definition at line 40 of file TargetSubtargetInfo.cpp.
References enableMachineScheduler().
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True if the subtarget should run MachinePipeliner.
Definition at line 201 of file TargetSubtargetInfo.h.
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True if the machine scheduler should disable the TLI preference for preRA scheduling with the source level scheduler.
Definition at line 198 of file TargetSubtargetInfo.h.
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True if the subtarget should run MachineScheduler after aggressive coalescing.
This currently replaces the SelectionDAG scheduler with the "source" order scheduler (though see below for an option to turn this off and use the TargetLowering preference). It does not yet disable the postRA scheduler.
Definition at line 36 of file TargetSubtargetInfo.cpp.
Referenced by enableJoinGlobalCopies(), and enablePostRAMachineScheduler().
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True if the subtarget should run a machine scheduler after register allocation.
Definition at line 53 of file TargetSubtargetInfo.cpp.
References enableMachineScheduler(), and enablePostRAScheduler().
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True if the subtarget should run a scheduler after register allocation.
By default this queries the PostRAScheduling bit in the scheduling model which is the preferred way to influence this.
Definition at line 49 of file TargetSubtargetInfo.cpp.
References llvm::MCSubtargetInfo::getSchedModel(), and llvm::MCSchedModel::PostRAScheduler.
Referenced by enablePostRAMachineScheduler().
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True if the subtarget should run the local reassignment heuristic of the register allocator.
This heuristic may be compile time intensive, OptLevel
provides a finer grain to tune the register allocator.
Definition at line 44 of file TargetSubtargetInfo.cpp.
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Enable spillage copy elimination in MachineCopyPropagation pass.
This helps removing redundant copies generated by register allocator when handling complex eviction chains.
Definition at line 342 of file TargetSubtargetInfo.h.
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Enable tracking of subregister liveness in register allocator.
Please use MachineRegisterInfo::subRegLivenessEnabled() instead where possible.
Definition at line 318 of file TargetSubtargetInfo.h.
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True if the subtarget should run WindowScheduler.
Definition at line 204 of file TargetSubtargetInfo.h.
Referenced by llvm::WindowScheduler::initialize().
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Definition at line 258 of file TargetSubtargetInfo.h.
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Definition at line 105 of file TargetSubtargetInfo.h.
Referenced by createAtomicLibcall(), llvm::createLibcall(), llvm::createMemLibcall(), and llvm::IRTranslator::runOnMachineFunction().
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Definition at line 263 of file TargetSubtargetInfo.h.
References llvm::SmallVectorImpl< T >::clear().
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Return PBQPConstraint(s) for the target.
Override to provide custom PBQP constraints.
Definition at line 311 of file TargetSubtargetInfo.h.
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Target can subclass this hook to select a different DAG scheduler.
Definition at line 121 of file TargetSubtargetInfo.h.
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Definition at line 98 of file TargetSubtargetInfo.h.
Referenced by llvm::CodeViewDebug::beginFunctionImpl(), checkNumAlignedDPRCS2Regs(), computeFPBPAlignmentGap(), llvm::SelectionDAG::CreateStackTemporary(), llvm::LanaiRegisterInfo::eliminateFrameIndex(), llvm::LoongArchRegisterInfo::eliminateFrameIndex(), emitDebugValueComment(), llvm::MachineFrameInfo::estimateStackSize(), getAddressForMemoryInput(), getFnStackAlignment(), llvm::AVRRegisterInfo::getFrameRegister(), llvm::M68kRegisterInfo::getFrameRegister(), llvm::XtensaRegisterInfo::getFrameRegister(), llvm::SelectionDAG::getReducedAlign(), llvm::MipsRegisterInfo::getRegPressureLimit(), llvm::XtensaRegisterInfo::getReservedRegs(), llvm::TargetInstrInfo::getSPAdjust(), llvm::X86InstrInfo::getSPAdjust(), llvm::MIRParserImpl::initializeFrameInfo(), insertCSRRestores(), insertCSRSaves(), llvm::MipsCallLowering::lowerCall(), mayCombineMisaligned(), llvm::MachineFrameInfo::print(), llvm::CFIFixup::runOnMachineFunction(), llvm::FunctionLoweringInfo::set(), llvm::X86FrameLowering::spillFPBP(), and llvm::DwarfCompileUnit::updateSubprogramScopeDIE().
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Definition at line 107 of file TargetSubtargetInfo.h.
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Definition at line 97 of file TargetSubtargetInfo.h.
Referenced by llvm::MachineBasicBlock::addLiveIn(), llvm::ARMFrameLowering::adjustForSegmentedStacks(), llvm::ARMBasicBlockUtils::ARMBasicBlockUtils(), assignSections(), attemptDebugCopyProp(), llvm::avoidZeroOffsetLandingPad(), llvm::DwarfDebug::beginInstruction(), llvm::calculateRegAllocScore(), llvm::MachineBasicBlock::canSplitCriticalEdge(), cloneInstr(), combineFPFusedMultiply(), llvm::MachineFrameInfo::computeMaxCallFrameSize(), llvm::createBURRListDAGScheduler(), createDedicatedExit(), llvm::createHybridListDAGScheduler(), llvm::createILPListDAGScheduler(), llvm::VLIWResourceModel::createPacketizer(), createPHIsForCMOVsInSinkBB(), createPHIsForSelects(), llvm::createSourceListDAGScheduler(), llvm::TargetInstrInfo::describeLoadedValue(), llvm::ARMFrameLowering::determineCalleeSaves(), llvm::AArch64FrameLowering::eliminateCallFramePseudoInstr(), llvm::MSP430FrameLowering::eliminateCallFramePseudoInstr(), llvm::XtensaFrameLowering::eliminateCallFramePseudoInstr(), llvm::ARMBaseRegisterInfo::eliminateFrameIndex(), llvm::LanaiRegisterInfo::eliminateFrameIndex(), llvm::MSP430RegisterInfo::eliminateFrameIndex(), llvm::XCoreRegisterInfo::eliminateFrameIndex(), llvm::BPFRegisterInfo::eliminateFrameIndex(), llvm::XtensaRegisterInfo::eliminateFrameIndex(), emitAlignedDPRCS2Restores(), emitAlignedDPRCS2Spills(), emitBuildPairF64Pseudo(), emitCalleeSavedRestores(), emitComments(), llvm::LiveDebugVariables::LDVImpl::emitDebugValues(), llvm::ARMFrameLowering::emitEpilogue(), llvm::MSP430FrameLowering::emitEpilogue(), llvm::SparcFrameLowering::emitEpilogue(), llvm::SystemZELFFrameLowering::emitEpilogue(), llvm::AsmPrinter::emitFunctionBody(), llvm::BPFTargetLowering::EmitInstrWithCustomInserter(), llvm::MSP430TargetLowering::EmitInstrWithCustomInserter(), llvm::ARMBaseRegisterInfo::emitLoadConstPool(), llvm::AsmPrinter::emitNops(), llvm::MSP430FrameLowering::emitPrologue(), llvm::NVPTXFrameLowering::emitPrologue(), emitQuietFCMP(), emitReadCounterWidePseudo(), emitSelectPseudo(), emitSplitF64Pseudo(), emitThumb2LoadConstPool(), emitVFROUND_NOEXCEPT_MASK(), llvm::MachineFunction::estimateFunctionSizeInBytes(), estimateRSStackSizeLimit(), llvm::AArch64InstrInfo::expandPostRAPseudo(), llvm::finalizeBundle(), llvm::MachineFunction::finalizeDebugInstrRefs(), findJumpTableIndex(), findPrologueEndLoc(), llvm::AArch64InstrInfo::genAlternativeCodeSequence(), genIndexedMultiply(), genShXAddAddShift(), getBBAddrMapMetadata(), llvm::getEHScopeMembership(), llvm::MachineBasicBlock::getFallThrough(), llvm::ARMHazardRecognizerFPMLx::getHazardType(), llvm::RegisterBankInfo::getInstrMappingImpl(), llvm::MSP430InstrInfo::getInstSizeInBytes(), getOrCreateFrameHelper(), getSchedRegions(), getTargetIndexName(), llvm::TargetSchedModel::init(), llvm::PreRARematStage::initGCNSchedStage(), llvm::MipsFunctionInfo::initGlobalBaseReg(), llvm::ConvergingVLIWScheduler::initialize(), llvm::SelectionDAGISel::initializeAnalysisResults(), llvm::TailDuplicator::initMF(), llvm::SystemZELFFrameLowering::inlineStackProbe(), llvm::SystemZXPLINKFrameLowering::inlineStackProbe(), insertCSRRestores(), insertCSRSaves(), insertDivByZeroTrap(), llvm::insertMultibyteShift(), insertRememberRestorePair(), interpretValues(), jumpTableHasOtherUses(), AMDGPUMCInstLower::lower(), llvm::AArch64CallLowering::lowerCall(), llvm::X86CallLowering::lowerCall(), llvm::ARMBaseRegisterInfo::materializeFrameBaseRegister(), llvm::RISCVRegisterInfo::materializeFrameBaseRegister(), llvm::MachineInstr::mayAlias(), llvm::MachineInstr::print(), llvm::MachineBasicBlock::print(), llvm::MachineOperand::printTargetFlags(), llvm::AArch64FrameLowering::processFunctionBeforeFrameFinalized(), llvm::SwiftErrorValueTracking::propagateVRegs(), llvm::TargetInstrInfo::reassociateOps(), llvm::MachineRegisterInfo::recomputeRegClass(), replaceFI(), llvm::ARMBaseRegisterInfo::resolveFrameIndex(), llvm::ResourcePriorityQueue::ResourcePriorityQueue(), llvm::SystemZELFFrameLowering::restoreCalleeSavedRegisters(), llvm::AArch64FrameLowering::restoreCalleeSavedRegisters(), llvm::CSKYFrameLowering::restoreCalleeSavedRegisters(), llvm::MSP430FrameLowering::restoreCalleeSavedRegisters(), llvm::RISCVFrameLowering::restoreCalleeSavedRegisters(), llvm::XCoreFrameLowering::restoreCalleeSavedRegisters(), runImpl(), llvm::ExecutionDomainFix::runOnMachineFunction(), llvm::BreakFalseDeps::runOnMachineFunction(), llvm::CSKYAsmPrinter::runOnMachineFunction(), llvm::Mips16RegisterInfo::saveScavengerRegister(), llvm::FunctionLoweringInfo::set(), setCallTargetReg(), llvm::SwiftErrorValueTracking::setFunction(), llvm::MachineIRBuilder::setMF(), llvm::TargetRegisterInfo::shouldRegionSplitForVirtReg(), llvm::MachineBasicBlock::SkipPHIsAndLabels(), llvm::MachineBasicBlock::SkipPHIsLabelsAndDebug(), llvm::SystemZELFFrameLowering::spillCalleeSavedRegisters(), llvm::AArch64FrameLowering::spillCalleeSavedRegisters(), llvm::CSKYFrameLowering::spillCalleeSavedRegisters(), llvm::LoongArchFrameLowering::spillCalleeSavedRegisters(), llvm::MSP430FrameLowering::spillCalleeSavedRegisters(), llvm::RISCVFrameLowering::spillCalleeSavedRegisters(), llvm::XCoreFrameLowering::spillCalleeSavedRegisters(), llvm::MachineBasicBlock::SplitCriticalEdge(), UpdateOperandRegClass(), llvm::MachineBasicBlock::updateTerminator(), and llvm::VirtRegAuxInfo::weightCalcHelper().
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getInstrItineraryData - Returns instruction itinerary data for the target or specific subtarget.
Definition at line 137 of file TargetSubtargetInfo.h.
Referenced by llvm::R600InstrInfo::CreateTargetScheduleState(), and llvm::HexagonInstrInfo::CreateTargetScheduleState().
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Definition at line 115 of file TargetSubtargetInfo.h.
Referenced by llvm::InstructionSelect::runOnMachineFunction().
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Definition at line 125 of file TargetSubtargetInfo.h.
Referenced by llvm::MipsRegisterBankInfo::applyMappingImpl(), llvm::machineFunctionIsIllegal(), and llvm::Legalizer::runOnMachineFunction().
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Get the list of MacroFusion predicates.
Definition at line 345 of file TargetSubtargetInfo.h.
Referenced by llvm::createGenericSchedLive(), and llvm::createGenericSchedPostRA().
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Definition at line 285 of file TargetSubtargetInfo.h.
References llvm::Default.
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Definition at line 269 of file TargetSubtargetInfo.h.
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If the information for the register banks is available, return it.
Otherwise return nullptr.
Definition at line 133 of file TargetSubtargetInfo.h.
Referenced by llvm::RegBankSelect::init(), llvm::AArch64CallLowering::lowerCall(), llvm::X86CallLowering::lowerCall(), and llvm::RegisterBankInfo::InstructionMapping::verify().
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getRegisterInfo - If register information is available, return it.
If not, return null.
Definition at line 129 of file TargetSubtargetInfo.h.
Referenced by llvm::DwarfCompileUnit::addAddress(), llvm::DwarfCompileUnit::addComplexAddress(), addLiveInRegs(), addSavedGPR(), llvm::MachineFunction::allocateRegMask(), llvm::TargetFrameLowering::allocateScavengingFrameIndexesNearIncomingSP(), analyzeCompressibleUses(), llvm::A57ChainingConstraint::apply(), llvm::HexagonSubtarget::CallMutation::apply(), llvm::RISCVFrameLowering::assignCalleeSavedSpillSlots(), llvm::DebugHandlerBase::beginFunction(), llvm::CodeViewDebug::beginFunctionImpl(), buildAnyextOrCopy(), llvm::AArch64InstrInfo::buildOutlinedFrame(), cannotInsertTailCall(), llvm::HexagonPacketizerList::canPromoteToDotCur(), CC_X86_64_VectorCall(), checkNumAlignedDPRCS2Regs(), cloneInstr(), computeFPBPAlignmentGap(), computeLiveOuts(), llvm::TargetSchedModel::computeOutputLatency(), llvm::MIRPrinter::convertCallSiteObjects(), llvm::MIRPrinter::convertEntryValueObjects(), llvm::MIRPrinter::convertStackObjects(), llvm::createBURRListDAGScheduler(), llvm::MipsFunctionInfo::createEhDataRegsFI(), llvm::XCoreFunctionInfo::createEHSpillSlot(), llvm::XCoreFunctionInfo::createFPSpillSlot(), llvm::createHybridListDAGScheduler(), llvm::createILPListDAGScheduler(), llvm::MipsFunctionInfo::createISRRegFI(), llvm::XCoreFunctionInfo::createLRSpillSlot(), llvm::createSourceListDAGScheduler(), createTuple(), llvm::TargetInstrInfo::describeLoadedValue(), llvm::AArch64InstrInfo::describeLoadedValue(), llvm::MipsInstrInfo::describeLoadedValue(), llvm::AArch64FrameLowering::determineCalleeSaves(), llvm::ARMFrameLowering::determineCalleeSaves(), llvm::CSKYFrameLowering::determineCalleeSaves(), llvm::MipsSEFrameLowering::determineCalleeSaves(), llvm::SystemZELFFrameLowering::determineCalleeSaves(), llvm::TargetFrameLowering::determineCalleeSaves(), emitBuildPairF64Pseudo(), emitCalleeSavedRestores(), llvm::DwarfDebug::emitDebugLocValue(), emitDebugValueComment(), llvm::ARMFrameLowering::emitEpilogue(), emitFakeUse(), llvm::MipsAsmPrinter::emitFrameDirective(), emitFrameOffsetAdj(), llvm::AsmPrinter::emitImplicitDef(), llvm::AMDGPUAsmPrinter::emitImplicitDef(), emitKill(), llvm::AArch64FrameLowering::emitPrologue(), llvm::CSKYFrameLowering::emitPrologue(), llvm::XCoreFrameLowering::emitPrologue(), emitSplitF64Pseudo(), emitVFROUND_NOEXCEPT_MASK(), emitVGSaveRestore(), estimateRSStackSizeLimit(), llvm::MachineFrameInfo::estimateStackSize(), llvm::finalizeBundle(), llvm::TargetInstrInfo::foldMemoryOperand(), llvm::AArch64InstrInfo::foldMemoryOperandImpl(), llvm::SystemZInstrInfo::foldMemoryOperandImpl(), llvm::X86InstrInfo::foldMemoryOperandImpl(), llvm::TargetFrameLowering::getCalleeSaves(), llvm::TargetFrameLowering::getDwarfFrameBase(), llvm::X86FrameLowering::getDwarfFrameBase(), llvm::TargetFrameLowering::getFrameIndexReference(), llvm::CSKYFrameLowering::getFrameIndexReference(), llvm::LoongArchFrameLowering::getFrameIndexReference(), llvm::RISCVFrameLowering::getFrameIndexReference(), llvm::AArch64FrameLowering::getFrameIndexReferencePreferSP(), llvm::AArch64RegisterBankInfo::getInstrAlternativeMappings(), llvm::X86RegisterBankInfo::getInstrAlternativeMappings(), llvm::AArch64RegisterBankInfo::getInstrMapping(), llvm::PPCRegisterBankInfo::getInstrMapping(), llvm::RISCVRegisterBankInfo::getInstrMapping(), llvm::X86RegisterBankInfo::getInstrMapping(), llvm::RegisterBankInfo::getInstrMappingImpl(), llvm::AVRRegisterInfo::getLargestLegalSuperClass(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), getMemsetStores(), llvm::MipsFunctionInfo::getMoveF64ViaSpillFI(), llvm::RISCVInstrInfo::getOutliningTypeImpl(), llvm::MachineFrameInfo::getPristineRegs(), getRegistersForValue(), getRegTy(), llvm::AArch64FrameLowering::getSEHFrameIndexOffset(), llvm::TargetInstrInfo::getStackSlotRange(), llvm::MachineRegisterInfo::getTargetRegisterInfo(), llvm::PerTargetMIParsingState::getVRegFlagValue(), llvm::AArch64FrameLowering::hasFPImpl(), llvm::ARCFrameLowering::hasFPImpl(), llvm::ARMFrameLowering::hasFPImpl(), llvm::CSKYFrameLowering::hasFPImpl(), llvm::LoongArchFrameLowering::hasFPImpl(), llvm::RISCVFrameLowering::hasFPImpl(), llvm::VEFrameLowering::hasFPImpl(), llvm::RegPressureTracker::init(), llvm::RegBankSelect::init(), llvm::LiveStacks::init(), llvm::LiveRegMatrix::init(), llvm::TailDuplicator::initMF(), insertCSRRestores(), insertCSRSaves(), llvm::LoongArchInstrInfo::insertIndirectBranch(), llvm::RISCVInstrInfo::insertIndirectBranch(), interpretValues(), llvm::SwingSchedulerDAG::isLoopCarriedDep(), isNonFoldablePartialRegisterLoad(), llvm::TargetInstrInfo::isSchedulingBoundary(), llvm::MipsCallLowering::lowerCall(), llvm::InlineAsmLowering::lowerInlineAsm(), patchMatchingInput(), llvm::SystemZInstrInfo::prepareCompareSwapOperands(), llvm::MIRPrinter::print(), llvm::PhysicalRegisterUsageInfo::print(), llvm::MachineFunction::print(), llvm::MachineBasicBlock::print(), llvm::AMDGPUAsmPrinter::PrintAsmOperand(), llvm::HexagonAsmPrinter::PrintAsmOperand(), llvm::ARMAsmPrinter::PrintAsmOperand(), llvm::ARMAsmPrinter::printOperand(), llvm::MipsAsmPrinter::printSavedRegsBitmask(), llvm::ARCFrameLowering::processFunctionBeforeFrameFinalized(), llvm::XCoreFrameLowering::processFunctionBeforeFrameFinalized(), llvm::TargetInstrInfo::reassociateOps(), reduceDbgValsForwardScan(), replaceFrameIndex(), llvm::ARMFrameLowering::ResolveFrameIndexReference(), llvm::AArch64FrameLowering::resolveFrameOffsetReference(), llvm::ResourcePriorityQueue::ResourcePriorityQueue(), llvm::Thumb1FrameLowering::restoreCalleeSavedRegisters(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::ExecutionDomainFix::runOnMachineFunction(), llvm::ReachingDefAnalysis::runOnMachineFunction(), llvm::BreakFalseDeps::runOnMachineFunction(), llvm::LiveDebugVariables::LDVImpl::runOnMachineFunction(), llvm::InstructionSelect::selectMachineFunction(), llvm::FunctionLoweringInfo::set(), setAliasRegs(), llvm::X86MachineFunctionInfo::setRestoreBasePointer(), llvm::MIRParserImpl::setupRegisterInfo(), shouldUseFrameHelper(), llvm::Thumb1FrameLowering::spillCalleeSavedRegisters(), llvm::MachineBasicBlock::splitAt(), llvm::MachineBasicBlock::SplitCriticalEdge(), llvm::X86InstrInfo::unfoldMemoryOperand(), updateLiveIn(), UpdateOperandRegClass(), llvm::RegisterBankInfo::InstructionMapping::verify(), and llvm::VirtRegAuxInfo::weightCalcHelper().
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Definition at line 102 of file TargetSubtargetInfo.h.
Referenced by llvm::SelectionDAG::init().
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Definition at line 275 of file TargetSubtargetInfo.h.
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Definition at line 101 of file TargetSubtargetInfo.h.
Referenced by llvm::CCState::analyzeMustTailForwardedRegisters(), llvm::MachineIRBuilder::buildBoolExtInReg(), llvm::MachineIRBuilder::buildExtractVectorElementConstant(), llvm::calculateDbgEntityHistory(), createAtomicLibcall(), llvm::createLibcall(), llvm::createMemLibcall(), llvm::XCoreFrameLowering::emitEpilogue(), llvm::AsmPrinter::emitJumpTableInfo(), llvm::SystemZELFFrameLowering::emitPrologue(), llvm::XCoreFrameLowering::emitPrologue(), llvm::HexagonSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::XCoreSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::MachineIRBuilder::getBoolExtOp(), llvm::SystemZELFRegisters::getCalleeSavedRegs(), llvm::SystemZELFRegisters::getCallPreservedMask(), llvm::AsmPrinter::getCodeViewJumpTableInfo(), getRegistersForValue(), llvm::CombinerHelper::getTargetLowering(), llvm::CCState::HandleByVal(), llvm::SelectionDAG::init(), llvm::SelectionDAGISel::initializeAnalysisResults(), llvm::GenericScheduler::initPolicy(), interpretValues(), isRegOtherThanSPAndFP(), llvm::TargetInstrInfo::isSchedulingBoundary(), llvm::MachineBasicBlock::liveout_begin(), llvm::CombinerHelper::matchNotCmp(), llvm::ExpandLargeDivRemPass::run(), llvm::ExpandLargeFpConvertPass::run(), llvm::ExpandMemCmpPass::run(), llvm::InterleavedAccessPass::run(), runImpl(), llvm::IRTranslator::runOnMachineFunction(), llvm::InstructionSelect::selectMachineFunction(), llvm::FunctionLoweringInfo::set(), llvm::SwiftErrorValueTracking::setFunction(), TransferTracker::TransferTracker(), and llvm::AArch64GISelUtils::tryEmitBZero().
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True if the register allocator should use the allocation orders exactly as written in the tablegen descriptions, false if it should allocate the specified physical register later if is it callee-saved.
Definition at line 326 of file TargetSubtargetInfo.h.
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Returns true if MI is a dependency breaking instruction for the subtarget.
Similar in behavior to isZeroIdiom
. However, it knows how to identify all dependency breaking instructions (i.e. not just zero-idioms).
As for isZeroIdiom
, this method returns a mask of "broken" dependencies. (See method isZeroIdiom
for a detailed description of Mask).
Definition at line 171 of file TargetSubtargetInfo.h.
References isZeroIdiom(), and MI.
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Returns true if MI is a candidate for move elimination.
A candidate for move elimination may be optimized out at register renaming stage. Subtargets can specify the set of optimizable moves by instantiating tablegen class IsOptimizableRegisterMove
(see llvm/Target/TargetInstrPredicate.td).
SubtargetEmitter is responsible for processing all the definitions of class IsOptimizableRegisterMove, and auto-generate an override for this method.
Definition at line 184 of file TargetSubtargetInfo.h.
Definition at line 354 of file TargetSubtargetInfo.h.
Referenced by llvm::MachineRegisterInfo::getCalleeSavedRegs(), llvm::RISCVRegisterInfo::isAsmClobberable(), and llvm::RISCVTargetLowering::LowerCall().
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Definition at line 85 of file TargetSubtargetInfo.h.
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Returns true if MI is a dependency breaking zero-idiom instruction for the subtarget.
This function also sets bits in Mask related to input operands that are not in a data dependency relationship. There is one bit for each machine operand; implicit operands follow explicit operands in the bit representation used for Mask. An empty (i.e. a mask with all bits cleared) means: data dependencies are "broken" for all the explicit input machine operands of MI.
Definition at line 160 of file TargetSubtargetInfo.h.
Referenced by isDependencyBreaking().
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This is called after a .mir file was loaded.
Definition at line 61 of file TargetSubtargetInfo.cpp.
Referenced by llvm::MIRParserImpl::initializeMachineFunction().
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delete |
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Override generic post-ra scheduling policy within a region.
This is a convenient way for targets that don't provide any custom scheduling heuristics (no custom MachineSchedStrategy) to make changes to the generic post-ra scheduling policy. Note that some options like tracking register pressure won't take effect in post-ra scheduling.
Definition at line 243 of file TargetSubtargetInfo.h.
Referenced by llvm::PostGenericScheduler::initPolicy().
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Override generic scheduling policy within a region.
This is a convenient way for targets that don't provide any custom scheduling heuristics (no custom MachineSchedStrategy) to make changes to the generic scheduling policy.
Definition at line 233 of file TargetSubtargetInfo.h.
Referenced by llvm::GenericScheduler::initPolicy().
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Whether the target has instructions where an early-clobber result operand cannot overlap with an undef input operand.
Definition at line 349 of file TargetSubtargetInfo.h.
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Resolve a SchedClass at runtime, where SchedClass identifies an MCSchedClassDesc with the isVariant property.
This may return the ID of another variant SchedClass, but repeated invocation must quickly terminate in a nonvariant SchedClass.
Definition at line 145 of file TargetSubtargetInfo.h.
Referenced by llvm::TargetSchedModel::resolveSchedClass().
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Enable use of alias analysis during code generation (during MI scheduling, DAGCombine, etc.).
Definition at line 57 of file TargetSubtargetInfo.cpp.
Referenced by addrSinkUsingGEPs(), and llvm::BasicTTIImplBase< T >::useAA().
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Default to DFA for resource management, return false when target will use ProcResource in InstrSchedModel instead.
Definition at line 281 of file TargetSubtargetInfo.h.