LLVM 18.0.0git
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llvm::TargetMachine Class Reference

Primary interface to the complete machine description for the target machine. More...

#include "llvm/Target/TargetMachine.h"

Inheritance diagram for llvm::TargetMachine:
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Public Member Functions

 TargetMachine (const TargetMachine &)=delete
 
void operator= (const TargetMachine &)=delete
 
virtual ~TargetMachine ()
 
const TargetgetTarget () const
 
const TriplegetTargetTriple () const
 
StringRef getTargetCPU () const
 
StringRef getTargetFeatureString () const
 
void setTargetFeatureString (StringRef FS)
 
virtual const TargetSubtargetInfogetSubtargetImpl (const Function &) const
 Virtual method implemented by subclasses that returns a reference to that target's TargetSubtargetInfo-derived member variable.
 
virtual TargetLoweringObjectFilegetObjFileLowering () const
 
virtual MachineFunctionInfocreateMachineFunctionInfo (BumpPtrAllocator &Allocator, const Function &F, const TargetSubtargetInfo *STI) const
 Create the target's instance of MachineFunctionInfo.
 
virtual yaml::MachineFunctionInfocreateDefaultFuncInfoYAML () const
 Allocate and return a default initialized instance of the YAML representation for the MachineFunctionInfo.
 
virtual yaml::MachineFunctionInfoconvertFuncInfoToYAML (const MachineFunction &MF) const
 Allocate and initialize an instance of the YAML representation of the MachineFunctionInfo.
 
virtual bool parseMachineFunctionInfo (const yaml::MachineFunctionInfo &, PerFunctionMIParsingState &PFS, SMDiagnostic &Error, SMRange &SourceRange) const
 Parse out the target's MachineFunctionInfo from the YAML reprsentation.
 
template<typename STC >
const STC & getSubtarget (const Function &F) const
 This method returns a pointer to the specified type of TargetSubtargetInfo.
 
const DataLayout createDataLayout () const
 Create a DataLayout.
 
bool isCompatibleDataLayout (const DataLayout &Candidate) const
 Test if a DataLayout if compatible with the CodeGen for this target.
 
unsigned getPointerSize (unsigned AS) const
 Get the pointer size for this target.
 
unsigned getPointerSizeInBits (unsigned AS) const
 
unsigned getProgramPointerSize () const
 
unsigned getAllocaPointerSize () const
 
void resetTargetOptions (const Function &F) const
 Reset the target options based on the function's attributes.
 
const MCAsmInfogetMCAsmInfo () const
 Return target specific asm information.
 
const MCRegisterInfogetMCRegisterInfo () const
 
const MCInstrInfogetMCInstrInfo () const
 
const MCSubtargetInfogetMCSubtargetInfo () const
 
virtual const TargetIntrinsicInfogetIntrinsicInfo () const
 If intrinsic information is available, return it. If not, return null.
 
bool requiresStructuredCFG () const
 
void setRequiresStructuredCFG (bool Value)
 
Reloc::Model getRelocationModel () const
 Returns the code generation relocation model.
 
CodeModel::Model getCodeModel () const
 Returns the code model.
 
uint64_t getMaxCodeSize () const
 Returns the maximum code size possible under the code model.
 
void setCodeModel (CodeModel::Model CM)
 Set the code model.
 
void setLargeDataThreshold (uint64_t LDT)
 
bool isLargeData (const GlobalVariable *GV) const
 
bool isPositionIndependent () const
 
bool shouldAssumeDSOLocal (const Module &M, const GlobalValue *GV) const
 
bool useEmulatedTLS () const
 Returns true if this target uses emulated TLS.
 
TLSModel::Model getTLSModel (const GlobalValue *GV) const
 Returns the TLS model which should be used for the given global variable.
 
CodeGenOptLevel getOptLevel () const
 Returns the optimization level: None, Less, Default, or Aggressive.
 
void setOptLevel (CodeGenOptLevel Level)
 Overrides the optimization level.
 
void setFastISel (bool Enable)
 
bool getO0WantsFastISel ()
 
void setO0WantsFastISel (bool Enable)
 
void setGlobalISel (bool Enable)
 
void setGlobalISelAbort (GlobalISelAbortMode Mode)
 
void setMachineOutliner (bool Enable)
 
void setSupportsDefaultOutlining (bool Enable)
 
void setSupportsDebugEntryValues (bool Enable)
 
void setCFIFixup (bool Enable)
 
bool getAIXExtendedAltivecABI () const
 
bool getUniqueSectionNames () const
 
bool getUniqueBasicBlockSectionNames () const
 Return true if unique basic block section names must be generated.
 
bool getDataSections () const
 Return true if data objects should be emitted into their own section, corresponds to -fdata-sections.
 
bool getFunctionSections () const
 Return true if functions should be emitted into their own section, corresponding to -ffunction-sections.
 
bool getIgnoreXCOFFVisibility () const
 Return true if visibility attribute should not be emitted in XCOFF, corresponding to -mignore-xcoff-visibility.
 
bool getXCOFFTracebackTable () const
 Return true if XCOFF traceback table should be emitted, corresponding to -xcoff-traceback-table.
 
llvm::BasicBlockSection getBBSectionsType () const
 If basic blocks should be emitted into their own section, corresponding to -fbasic-block-sections.
 
const MemoryBuffergetBBSectionsFuncListBuf () const
 Get the list of functions and basic block ids that need unique sections.
 
virtual bool isNoopAddrSpaceCast (unsigned SrcAS, unsigned DestAS) const
 Returns true if a cast between SrcAS and DestAS is a noop.
 
void setPGOOption (std::optional< PGOOptions > PGOOpt)
 
const std::optional< PGOOptions > & getPGOOption () const
 
virtual unsigned getAssumedAddrSpace (const Value *V) const
 If the specified generic pointer could be assumed as a pointer to a specific address space, return that address space.
 
virtual std::pair< const Value *, unsignedgetPredicatedAddrSpace (const Value *V) const
 If the specified predicate checks whether a generic pointer falls within a specified address space, return that generic pointer and the address space being queried.
 
TargetIRAnalysis getTargetIRAnalysis () const
 Get a TargetIRAnalysis appropriate for the target.
 
virtual TargetTransformInfo getTargetTransformInfo (const Function &F) const
 Return a TargetTransformInfo for a given function.
 
virtual void registerPassBuilderCallbacks (PassBuilder &)
 Allow the target to modify the pass pipeline.
 
virtual void registerDefaultAliasAnalyses (AAManager &)
 Allow the target to register alias analyses with the AAManager for use with the new pass manager.
 
virtual bool addPassesToEmitFile (PassManagerBase &, raw_pwrite_stream &, raw_pwrite_stream *, CodeGenFileType, bool=true, MachineModuleInfoWrapperPass *MMIWP=nullptr)
 Add passes to the specified pass manager to get the specified file emitted.
 
virtual bool addPassesToEmitMC (PassManagerBase &, MCContext *&, raw_pwrite_stream &, bool=true)
 Add passes to the specified pass manager to get machine code emitted with the MCJIT.
 
virtual bool targetSchedulesPostRAScheduling () const
 True if subtarget inserts the final scheduling pass on its own.
 
void getNameWithPrefix (SmallVectorImpl< char > &Name, const GlobalValue *GV, Mangler &Mang, bool MayAlwaysUsePrivate=false) const
 
MCSymbolgetSymbol (const GlobalValue *GV) const
 
virtual unsigned getSjLjDataSize () const
 
virtual unsigned getAddressSpaceForPseudoSourceKind (unsigned Kind) const
 getAddressSpaceForPseudoSourceKind - Given the kind of memory (e.g.
 

Static Public Member Functions

static std::pair< int, int > parseBinutilsVersion (StringRef Version)
 

Public Attributes

TargetOptions Options
 

Static Public Attributes

static constexpr unsigned DefaultSjLjDataSize = 32
 The integer bit size to use for SjLj based exception handling.
 

Protected Member Functions

 TargetMachine (const Target &T, StringRef DataLayoutString, const Triple &TargetTriple, StringRef CPU, StringRef FS, const TargetOptions &Options)
 

Protected Attributes

const TargetTheTarget
 The Target that this machine was created for.
 
const DataLayout DL
 DataLayout for the target: keep ABI type size and alignment.
 
Triple TargetTriple
 Triple string, CPU name, and target feature strings the TargetMachine instance is created with.
 
std::string TargetCPU
 
std::string TargetFS
 
Reloc::Model RM = Reloc::Static
 
CodeModel::Model CMModel = CodeModel::Small
 
uint64_t LargeDataThreshold = 0
 
CodeGenOptLevel OptLevel = CodeGenOptLevel::Default
 
std::unique_ptr< const MCAsmInfoAsmInfo
 Contains target specific asm information.
 
std::unique_ptr< const MCRegisterInfoMRI
 
std::unique_ptr< const MCInstrInfoMII
 
std::unique_ptr< const MCSubtargetInfoSTI
 
unsigned RequireStructuredCFG: 1
 
unsigned O0WantsFastISel: 1
 
std::optional< PGOOptionsPGOOption
 

Detailed Description

Primary interface to the complete machine description for the target machine.

All target-specific information should be accessible through this interface.

Definition at line 78 of file TargetMachine.h.

Constructor & Destructor Documentation

◆ TargetMachine() [1/2]

TargetMachine::TargetMachine ( const Target T,
StringRef  DataLayoutString,
const Triple TargetTriple,
StringRef  CPU,
StringRef  FS,
const TargetOptions Options 
)
protected

Definition at line 32 of file TargetMachine.cpp.

References string.

◆ TargetMachine() [2/2]

llvm::TargetMachine::TargetMachine ( const TargetMachine )
delete

◆ ~TargetMachine()

TargetMachine::~TargetMachine ( )
virtualdefault

Member Function Documentation

◆ addPassesToEmitFile()

virtual bool llvm::TargetMachine::addPassesToEmitFile ( PassManagerBase ,
raw_pwrite_stream ,
raw_pwrite_stream ,
CodeGenFileType  ,
bool  = true,
MachineModuleInfoWrapperPass MMIWP = nullptr 
)
inlinevirtual

Add passes to the specified pass manager to get the specified file emitted.

Typically this will involve several steps of code generation. This method should return true if emission of this file type is not supported, or false on success. MMIWP is an optional parameter that, if set to non-nullptr, will be used to set the MachineModuloInfo for this PM.

Reimplemented in llvm::DirectXTargetMachine, and llvm::LLVMTargetMachine.

Definition at line 378 of file TargetMachine.h.

◆ addPassesToEmitMC()

virtual bool llvm::TargetMachine::addPassesToEmitMC ( PassManagerBase ,
MCContext *&  ,
raw_pwrite_stream ,
bool  = true 
)
inlinevirtual

Add passes to the specified pass manager to get machine code emitted with the MCJIT.

This method returns true if machine code is not supported. It fills the MCContext Ctx pointer which can be used to build custom MCStreamer.

Reimplemented in llvm::NVPTXTargetMachine, llvm::DirectXTargetMachine, and llvm::LLVMTargetMachine.

Definition at line 390 of file TargetMachine.h.

Referenced by llvm::orc::SimpleCompiler::operator()().

◆ convertFuncInfoToYAML()

virtual yaml::MachineFunctionInfo * llvm::TargetMachine::convertFuncInfoToYAML ( const MachineFunction MF) const
inlinevirtual

Allocate and initialize an instance of the YAML representation of the MachineFunctionInfo.

Reimplemented in llvm::AArch64TargetMachine, llvm::GCNTargetMachine, llvm::RISCVTargetMachine, and llvm::WebAssemblyTargetMachine.

Definition at line 157 of file TargetMachine.h.

◆ createDataLayout()

const DataLayout llvm::TargetMachine::createDataLayout ( ) const
inline

Create a DataLayout.

Definition at line 177 of file TargetMachine.h.

References DL.

◆ createDefaultFuncInfoYAML()

virtual yaml::MachineFunctionInfo * llvm::TargetMachine::createDefaultFuncInfoYAML ( ) const
inlinevirtual

Allocate and return a default initialized instance of the YAML representation for the MachineFunctionInfo.

Reimplemented in llvm::AArch64TargetMachine, llvm::GCNTargetMachine, llvm::RISCVTargetMachine, and llvm::WebAssemblyTargetMachine.

Definition at line 150 of file TargetMachine.h.

◆ createMachineFunctionInfo()

virtual MachineFunctionInfo * llvm::TargetMachine::createMachineFunctionInfo ( BumpPtrAllocator Allocator,
const Function F,
const TargetSubtargetInfo STI 
) const
inlinevirtual

◆ getAddressSpaceForPseudoSourceKind()

virtual unsigned llvm::TargetMachine::getAddressSpaceForPseudoSourceKind ( unsigned  Kind) const
inlinevirtual

getAddressSpaceForPseudoSourceKind - Given the kind of memory (e.g.

stack) the target returns the corresponding address space.

Reimplemented in llvm::AMDGPUTargetMachine.

Definition at line 415 of file TargetMachine.h.

◆ getAIXExtendedAltivecABI()

bool llvm::TargetMachine::getAIXExtendedAltivecABI ( ) const
inline

◆ getAllocaPointerSize()

unsigned llvm::TargetMachine::getAllocaPointerSize ( ) const
inline

◆ getAssumedAddrSpace()

virtual unsigned llvm::TargetMachine::getAssumedAddrSpace ( const Value V) const
inlinevirtual

If the specified generic pointer could be assumed as a pointer to a specific address space, return that address space.

Under offloading programming, the offloading target may be passed with values only prepared on the host side and could assume certain properties.

Reimplemented in llvm::AMDGPUTargetMachine.

Definition at line 337 of file TargetMachine.h.

Referenced by llvm::BasicTTIImplBase< T >::getAssumedAddrSpace().

◆ getBBSectionsFuncListBuf()

const MemoryBuffer * llvm::TargetMachine::getBBSectionsFuncListBuf ( ) const
inline

Get the list of functions and basic block ids that need unique sections.

Definition at line 319 of file TargetMachine.h.

References llvm::TargetOptions::BBSectionsFuncListBuf, and Options.

Referenced by llvm::TargetPassConfig::addMachinePasses().

◆ getBBSectionsType()

llvm::BasicBlockSection llvm::TargetMachine::getBBSectionsType ( ) const
inline

If basic blocks should be emitted into their own section, corresponding to -fbasic-block-sections.

Definition at line 314 of file TargetMachine.h.

References llvm::TargetOptions::BBSections, and Options.

Referenced by llvm::TargetPassConfig::addMachinePasses(), assignSections(), and llvm::MIRParserImpl::initializeMachineFunction().

◆ getCodeModel()

CodeModel::Model llvm::TargetMachine::getCodeModel ( ) const
inline

◆ getDataSections()

bool llvm::TargetMachine::getDataSections ( ) const
inline

◆ getFunctionSections()

bool llvm::TargetMachine::getFunctionSections ( ) const
inline

◆ getIgnoreXCOFFVisibility()

bool llvm::TargetMachine::getIgnoreXCOFFVisibility ( ) const
inline

Return true if visibility attribute should not be emitted in XCOFF, corresponding to -mignore-xcoff-visibility.

Definition at line 304 of file TargetMachine.h.

References llvm::TargetOptions::IgnoreXCOFFVisibility, and Options.

◆ getIntrinsicInfo()

virtual const TargetIntrinsicInfo * llvm::TargetMachine::getIntrinsicInfo ( ) const
inlinevirtual

If intrinsic information is available, return it. If not, return null.

Definition at line 220 of file TargetMachine.h.

◆ getMaxCodeSize()

uint64_t TargetMachine::getMaxCodeSize ( ) const

Returns the maximum code size possible under the code model.

Definition at line 96 of file TargetMachine.cpp.

References getCodeModel(), llvm::CodeModel::Kernel, llvm::CodeModel::Large, llvm_unreachable, llvm::maxUIntN(), llvm::CodeModel::Medium, llvm::CodeModel::Small, and llvm::CodeModel::Tiny.

◆ getMCAsmInfo()

const MCAsmInfo * llvm::TargetMachine::getMCAsmInfo ( ) const
inline

Return target specific asm information.

Definition at line 213 of file TargetMachine.h.

References AsmInfo.

Referenced by llvm::AArch64TargetMachine::AArch64TargetMachine(), llvm::TargetPassConfig::addPassesToHandleExceptions(), llvm::ARMFrameLowering::adjustForSegmentedStacks(), llvm::X86FrameLowering::canUseLEAForSPInEpilogue(), llvm::LLVMTargetMachine::createMCStreamer(), llvm::X86FrameLowering::eliminateCallFramePseudoInstr(), llvm::X86FrameLowering::emitEpilogue(), llvm::AMDGPUAsmPrinter::emitInstruction(), llvm::TargetFrameLowering::enableCFIFixup(), ExpandMOVImmSExti8(), llvm::X86FrameLowering::getFrameIndexReference(), llvm::AArch64InstrInfo::getInstSizeInBytes(), llvm::SIInstrInfo::getInstSizeInBytes(), llvm::ARCInstrInfo::getInstSizeInBytes(), llvm::ARMBaseInstrInfo::getInstSizeInBytes(), llvm::CSKYInstrInfo::getInstSizeInBytes(), llvm::LoongArchInstrInfo::getInstSizeInBytes(), llvm::MipsInstrInfo::getInstSizeInBytes(), llvm::MSP430InstrInfo::getInstSizeInBytes(), llvm::PPCInstrInfo::getInstSizeInBytes(), llvm::SparcInstrInfo::getInstSizeInBytes(), llvm::SystemZInstrInfo::getInstSizeInBytes(), llvm::TargetLoweringObjectFileMachO::getNameWithPrefix(), llvm::HexagonInstrInfo::getSize(), llvm::ARMElfTargetObjectFile::getTTypeGlobalReference(), llvm::AArch64InstrInfo::isFunctionSafeToOutlineFrom(), llvm::AArch64FunctionInfo::needsDwarfUnwindInfo(), llvm::WebAssemblyFrameLowering::needsPrologForEH(), needsWinCFI(), llvm::X86FrameLowering::processFunctionBeforeFrameFinalized(), and llvm::ARMSubtarget::splitFramePointerPush().

◆ getMCInstrInfo()

const MCInstrInfo * llvm::TargetMachine::getMCInstrInfo ( ) const
inline

◆ getMCRegisterInfo()

const MCRegisterInfo * llvm::TargetMachine::getMCRegisterInfo ( ) const
inline

◆ getMCSubtargetInfo()

const MCSubtargetInfo * llvm::TargetMachine::getMCSubtargetInfo ( ) const
inline

◆ getNameWithPrefix()

void TargetMachine::getNameWithPrefix ( SmallVectorImpl< char > &  Name,
const GlobalValue GV,
Mangler Mang,
bool  MayAlwaysUsePrivate = false 
) const

◆ getO0WantsFastISel()

bool llvm::TargetMachine::getO0WantsFastISel ( )
inline

◆ getObjFileLowering()

virtual TargetLoweringObjectFile * llvm::TargetMachine::getObjFileLowering ( ) const
inlinevirtual

◆ getOptLevel()

CodeGenOptLevel TargetMachine::getOptLevel ( ) const

◆ getPGOOption()

const std::optional< PGOOptions > & llvm::TargetMachine::getPGOOption ( ) const
inline

Definition at line 329 of file TargetMachine.h.

References PGOOption.

◆ getPointerSize()

unsigned llvm::TargetMachine::getPointerSize ( unsigned  AS) const
inline

Get the pointer size for this target.

This is the only time the DataLayout in the TargetMachine is used.

Definition at line 191 of file TargetMachine.h.

References DL, and llvm::DataLayout::getPointerSize().

Referenced by llvm::AsmPrinter::getPointerSize(), llvm::AVRTargetMachine::isNoopAddrSpaceCast(), and llvm::X86TargetMachine::isNoopAddrSpaceCast().

◆ getPointerSizeInBits()

unsigned llvm::TargetMachine::getPointerSizeInBits ( unsigned  AS) const
inline

Definition at line 195 of file TargetMachine.h.

References DL, and llvm::DataLayout::getPointerSizeInBits().

◆ getPredicatedAddrSpace()

virtual std::pair< const Value *, unsigned > llvm::TargetMachine::getPredicatedAddrSpace ( const Value V) const
inlinevirtual

If the specified predicate checks whether a generic pointer falls within a specified address space, return that generic pointer and the address space being queried.

Such predicates could be specified in @llvm.assume intrinsics for the optimizer to assume that the given generic pointer always falls within the address space based on that predicate.

Reimplemented in llvm::AMDGPUTargetMachine, and llvm::NVPTXTargetMachine.

Definition at line 347 of file TargetMachine.h.

Referenced by llvm::BasicTTIImplBase< T >::getPredicatedAddrSpace().

◆ getProgramPointerSize()

unsigned llvm::TargetMachine::getProgramPointerSize ( ) const
inline

◆ getRelocationModel()

Reloc::Model TargetMachine::getRelocationModel ( ) const

◆ getSjLjDataSize()

virtual unsigned llvm::TargetMachine::getSjLjDataSize ( ) const
inlinevirtual

Reimplemented in llvm::VETargetMachine.

Definition at line 409 of file TargetMachine.h.

References DefaultSjLjDataSize.

◆ getSubtarget()

template<typename STC >
const STC & llvm::TargetMachine::getSubtarget ( const Function F) const
inline

This method returns a pointer to the specified type of TargetSubtargetInfo.

In debug builds, it verifies that the object being returned is of the correct type.

Definition at line 172 of file TargetMachine.h.

References F, and getSubtargetImpl().

Referenced by llvm::PhysicalRegisterUsageInfo::print(), and llvm::AMDGPUAtomicOptimizerPass::run().

◆ getSubtargetImpl()

virtual const TargetSubtargetInfo * llvm::TargetMachine::getSubtargetImpl ( const Function ) const
inlinevirtual

◆ getSymbol()

MCSymbol * TargetMachine::getSymbol ( const GlobalValue GV) const

◆ getTarget()

const Target & llvm::TargetMachine::getTarget ( ) const
inline

◆ getTargetCPU()

StringRef llvm::TargetMachine::getTargetCPU ( ) const
inline

◆ getTargetFeatureString()

StringRef llvm::TargetMachine::getTargetFeatureString ( ) const
inline

◆ getTargetIRAnalysis()

TargetIRAnalysis TargetMachine::getTargetIRAnalysis ( ) const

Get a TargetIRAnalysis appropriate for the target.

This is used to construct the new pass manager's target IR analysis pass, set up appropriately for this target machine. Even the old pass manager uses this to answer queries about the IR.

Definition at line 249 of file TargetMachine.cpp.

References F, and getTargetTransformInfo().

Referenced by llvm::TargetPassConfig::addISelPasses().

◆ getTargetTransformInfo()

TargetTransformInfo TargetMachine::getTargetTransformInfo ( const Function F) const
virtual

◆ getTargetTriple()

const Triple & llvm::TargetMachine::getTargetTriple ( ) const
inline

Definition at line 127 of file TargetMachine.h.

References TargetTriple.

Referenced by llvm::AMDGPUPassConfig::addCodeGenPrepare(), llvm::TargetPassConfig::addIRPasses(), llvm::AMDGPUPassConfig::addIRPasses(), llvm::DwarfCompileUnit::addLocationAttribute(), llvm::LLVMTargetMachine::addPassesToEmitMC(), llvm::LLVMTargetMachine::createMCStreamer(), createPPCAsmPrinterPass(), llvm::AsmPrinter::doFinalization(), llvm::AsmPrinter::doInitialization(), llvm::AMDGPUAsmPrinter::doInitialization(), llvm::TargetInstrInfo::duplicate(), llvm::DwarfDebug::DwarfDebug(), llvm::DwarfDebug::emitDebugLocValue(), llvm::AMDGPUAsmPrinter::emitEndOfAsmFile(), llvm::ARMAsmPrinter::emitEndOfAsmFile(), llvm::CSKYAsmPrinter::emitEndOfAsmFile(), llvm::X86AsmPrinter::emitEndOfAsmFile(), llvm::X86FrameLowering::emitEpilogue(), llvm::AsmPrinter::emitFunctionBody(), llvm::AMDGPUAsmPrinter::emitFunctionBodyEnd(), llvm::SystemZAsmPrinter::emitFunctionBodyEnd(), llvm::AsmPrinter::emitFunctionEntryLabel(), llvm::AMDGPUAsmPrinter::emitFunctionEntryLabel(), llvm::AsmPrinter::emitGlobalVariable(), llvm::AMDGPUAsmPrinter::emitGlobalVariable(), llvm::AsmPrinter::emitPatchableFunctionEntries(), llvm::ARMAsmPrinter::emitStartOfAsmFile(), llvm::CSKYAsmPrinter::emitStartOfAsmFile(), llvm::MipsAsmPrinter::emitStartOfAsmFile(), llvm::SystemZAsmPrinter::emitStartOfAsmFile(), llvm::X86AsmPrinter::emitStartOfAsmFile(), llvm::AsmPrinter::emitXRayTable(), llvm::TargetLowering::expandIndirectJTBranch(), llvm::AMDGPUSubtarget::get(), llvm::AArch64MCInstLower::GetGlobalAddressSymbol(), llvm::TargetLoweringBase::getSafeStackPointerLocation(), llvm::PPCTargetMachine::getSubtargetImpl(), llvm::M68kMCInstLower::GetSymbolFromOperand(), llvm::AsmPrinter::getSymbolPreferLocal(), llvm::LLVMTargetMachine::initAsmInfo(), llvm::TargetLoweringObjectFileELF::Initialize(), llvm::TargetLoweringObjectFileXCOFF::Initialize(), llvm::TargetLoweringBase::insertSSPDeclarations(), llvm::AArch64CallLowering::isEligibleForTailCallOptimization(), isLargeData(), llvm::PPCTargetMachine::isPPC64(), llvm::AArch64MCInstLower::LowerSymbolOperand(), llvm::AsmPrinter::preprocessXXStructorList(), llvm::StackProtector::runOnFunction(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::FastISel::selectOperator(), llvm::AMDGPUTargetObjectFile::SelectSectionForGlobal(), llvm::FastISel::selectXRayCustomEvent(), llvm::FastISel::selectXRayTypedEvent(), llvm::AsmPrinter::SetupMachineFunction(), shouldAssumeDSOLocal(), llvm::SITargetLowering::shouldEmitFixup(), shouldLowerMemFuncForSize(), llvm::TargetLoweringObjectFileCOFF::shouldPutJumpTableInFunctionSection(), llvm::TailDuplicator::shouldTailDuplicate(), llvm::SITargetLowering::shouldUseLDSConstAddress(), llvm::TargetLoweringBase::TargetLoweringBase(), llvm::SelectionDAGBuilder::visitSPDescriptorFailure(), and llvm::WinException::WinException().

◆ getTLSModel()

TLSModel::Model TargetMachine::getTLSModel ( const GlobalValue GV) const

◆ getUniqueBasicBlockSectionNames()

bool llvm::TargetMachine::getUniqueBasicBlockSectionNames ( ) const
inline

Return true if unique basic block section names must be generated.

Definition at line 286 of file TargetMachine.h.

References Options, and llvm::TargetOptions::UniqueBasicBlockSectionNames.

Referenced by llvm::TargetLoweringObjectFileELF::getSectionForMachineBasicBlock().

◆ getUniqueSectionNames()

bool llvm::TargetMachine::getUniqueSectionNames ( ) const
inline

◆ getXCOFFTracebackTable()

bool llvm::TargetMachine::getXCOFFTracebackTable ( ) const
inline

Return true if XCOFF traceback table should be emitted, corresponding to -xcoff-traceback-table.

Definition at line 310 of file TargetMachine.h.

References Options, and llvm::TargetOptions::XCOFFTracebackTable.

◆ isCompatibleDataLayout()

bool llvm::TargetMachine::isCompatibleDataLayout ( const DataLayout Candidate) const
inline

Test if a DataLayout if compatible with the CodeGen for this target.

The LLVM Module owns a DataLayout that is used for the target independent optimizations and code generation. This hook provides a target specific check on the validity of this DataLayout.

Definition at line 184 of file TargetMachine.h.

References DL.

◆ isLargeData()

bool TargetMachine::isLargeData ( const GlobalVariable GV) const

◆ isNoopAddrSpaceCast()

virtual bool llvm::TargetMachine::isNoopAddrSpaceCast ( unsigned  SrcAS,
unsigned  DestAS 
) const
inlinevirtual

◆ isPositionIndependent()

bool TargetMachine::isPositionIndependent ( ) const

◆ operator=()

void llvm::TargetMachine::operator= ( const TargetMachine )
delete

◆ parseBinutilsVersion()

std::pair< int, int > TargetMachine::parseBinutilsVersion ( StringRef  Version)
static

Definition at line 256 of file TargetMachine.cpp.

◆ parseMachineFunctionInfo()

virtual bool llvm::TargetMachine::parseMachineFunctionInfo ( const yaml::MachineFunctionInfo ,
PerFunctionMIParsingState PFS,
SMDiagnostic Error,
SMRange SourceRange 
) const
inlinevirtual

Parse out the target's MachineFunctionInfo from the YAML reprsentation.

Reimplemented in llvm::AArch64TargetMachine, llvm::GCNTargetMachine, llvm::RISCVTargetMachine, and llvm::WebAssemblyTargetMachine.

Definition at line 162 of file TargetMachine.h.

◆ registerDefaultAliasAnalyses()

virtual void llvm::TargetMachine::registerDefaultAliasAnalyses ( AAManager )
inlinevirtual

Allow the target to register alias analyses with the AAManager for use with the new pass manager.

Only affects the "default" AAManager.

Reimplemented in llvm::AMDGPUTargetMachine, and llvm::NVPTXTargetMachine.

Definition at line 369 of file TargetMachine.h.

Referenced by llvm::PassBuilder::buildDefaultAAPipeline().

◆ registerPassBuilderCallbacks()

virtual void llvm::TargetMachine::registerPassBuilderCallbacks ( PassBuilder )
inlinevirtual

Allow the target to modify the pass pipeline.

Reimplemented in llvm::AMDGPUTargetMachine, llvm::BPFTargetMachine, llvm::DirectXTargetMachine, llvm::HexagonTargetMachine, and llvm::NVPTXTargetMachine.

Definition at line 365 of file TargetMachine.h.

◆ requiresStructuredCFG()

bool llvm::TargetMachine::requiresStructuredCFG ( ) const
inline

◆ resetTargetOptions()

void TargetMachine::resetTargetOptions ( const Function F) const

◆ setCFIFixup()

void llvm::TargetMachine::setCFIFixup ( bool  Enable)
inline

◆ setCodeModel()

void llvm::TargetMachine::setCodeModel ( CodeModel::Model  CM)
inline

Set the code model.

Definition at line 239 of file TargetMachine.h.

References CMModel.

◆ setFastISel()

void llvm::TargetMachine::setFastISel ( bool  Enable)
inline

◆ setGlobalISel()

void llvm::TargetMachine::setGlobalISel ( bool  Enable)
inline

◆ setGlobalISelAbort()

void llvm::TargetMachine::setGlobalISelAbort ( GlobalISelAbortMode  Mode)
inline

◆ setLargeDataThreshold()

void llvm::TargetMachine::setLargeDataThreshold ( uint64_t  LDT)
inline

Definition at line 241 of file TargetMachine.h.

References LargeDataThreshold.

◆ setMachineOutliner()

void llvm::TargetMachine::setMachineOutliner ( bool  Enable)
inline

◆ setO0WantsFastISel()

void llvm::TargetMachine::setO0WantsFastISel ( bool  Enable)
inline

◆ setOptLevel()

void TargetMachine::setOptLevel ( CodeGenOptLevel  Level)

Overrides the optimization level.

Definition at line 218 of file TargetMachine.cpp.

References OptLevel.

Referenced by llvm::OptLevelChanger::OptLevelChanger(), and llvm::OptLevelChanger::~OptLevelChanger().

◆ setPGOOption()

void llvm::TargetMachine::setPGOOption ( std::optional< PGOOptions PGOOpt)
inline

Definition at line 328 of file TargetMachine.h.

References PGOOption.

◆ setRequiresStructuredCFG()

void llvm::TargetMachine::setRequiresStructuredCFG ( bool  Value)
inline

◆ setSupportsDebugEntryValues()

void llvm::TargetMachine::setSupportsDebugEntryValues ( bool  Enable)
inline

◆ setSupportsDefaultOutlining()

void llvm::TargetMachine::setSupportsDefaultOutlining ( bool  Enable)
inline

◆ setTargetFeatureString()

void llvm::TargetMachine::setTargetFeatureString ( StringRef  FS)
inline

Definition at line 130 of file TargetMachine.h.

References TargetFS.

◆ shouldAssumeDSOLocal()

bool TargetMachine::shouldAssumeDSOLocal ( const Module M,
const GlobalValue GV 
) const

◆ targetSchedulesPostRAScheduling()

virtual bool llvm::TargetMachine::targetSchedulesPostRAScheduling ( ) const
inlinevirtual

True if subtarget inserts the final scheduling pass on its own.

Branch relaxation, which must happen after block placement, can on some targets (e.g. SystemZ) expose additional post-RA scheduling opportunities.

Reimplemented in llvm::ARMBaseTargetMachine, and llvm::SystemZTargetMachine.

Definition at line 401 of file TargetMachine.h.

Referenced by llvm::TargetPassConfig::addMachinePasses().

◆ useEmulatedTLS()

bool TargetMachine::useEmulatedTLS ( ) const

Member Data Documentation

◆ AsmInfo

std::unique_ptr<const MCAsmInfo> llvm::TargetMachine::AsmInfo
protected

Contains target specific asm information.

Definition at line 107 of file TargetMachine.h.

Referenced by llvm::BPFTargetMachine::BPFTargetMachine(), getMCAsmInfo(), and llvm::LLVMTargetMachine::initAsmInfo().

◆ CMModel

CodeModel::Model llvm::TargetMachine::CMModel = CodeModel::Small
protected

◆ DefaultSjLjDataSize

constexpr unsigned llvm::TargetMachine::DefaultSjLjDataSize = 32
staticconstexpr

The integer bit size to use for SjLj based exception handling.

Definition at line 408 of file TargetMachine.h.

Referenced by getSjLjDataSize().

◆ DL

const DataLayout llvm::TargetMachine::DL
protected

DataLayout for the target: keep ABI type size and alignment.

The DataLayout is created based on the string representation provided during construction. It is kept here only to avoid reparsing the string but should not really be used during compilation, because it has an internal cache that is context specific.

Definition at line 93 of file TargetMachine.h.

Referenced by createDataLayout(), getAllocaPointerSize(), getPointerSize(), getPointerSizeInBits(), getProgramPointerSize(), isCompatibleDataLayout(), and isLargeData().

◆ LargeDataThreshold

uint64_t llvm::TargetMachine::LargeDataThreshold = 0
protected

Definition at line 103 of file TargetMachine.h.

Referenced by isLargeData(), and setLargeDataThreshold().

◆ MII

std::unique_ptr<const MCInstrInfo> llvm::TargetMachine::MII
protected

◆ MRI

std::unique_ptr<const MCRegisterInfo> llvm::TargetMachine::MRI
protected

◆ O0WantsFastISel

unsigned llvm::TargetMachine::O0WantsFastISel
protected

Definition at line 113 of file TargetMachine.h.

Referenced by getO0WantsFastISel(), and setO0WantsFastISel().

◆ Options

TargetOptions llvm::TargetMachine::Options
mutable

Definition at line 119 of file TargetMachine.h.

Referenced by llvm::DwarfUnit::addAttribute(), llvm::TargetPassConfig::addCoreISelPasses(), llvm::TargetPassConfig::addMachinePasses(), llvm::LLVMTargetMachine::addPassesToEmitMC(), allowApproxFunc(), llvm::AMDGPUTargetLowering::allowApproxFunc(), llvm::NVPTXTargetLowering::allowFMA(), llvm::NVPTXTargetLowering::allowUnsafeFPMath(), llvm::ARMBaseTargetMachine::ARMBaseTargetMachine(), llvm::DwarfCFIException::beginBasicBlockSection(), llvm::AArch64RegisterInfo::cannotEliminateFrame(), llvm::ARMBaseRegisterInfo::cannotEliminateFrame(), llvm::CodeGenPassBuilder< DerivedT >::CodeGenPassBuilder(), combineFaddCFmul(), combineFMinFMax(), combineFMinNumFMaxNum(), combineSelect(), llvm::DwarfUnit::constructTypeDIE(), llvm::LLVMTargetMachine::createMCStreamer(), llvm::ARMFrameLowering::determineCalleeSaves(), llvm::TargetFrameLowering::determineCalleeSaves(), llvm::PPCFrameLowering::determineCalleeSaves(), llvm::AsmPrinter::doFinalization(), llvm::AsmPrinter::doInitialization(), llvm::DwarfDebug::DwarfDebug(), llvm::PPCFrameLowering::eliminateCallFramePseudoInstr(), llvm::SelectionDAGBuilder::EmitBranchForMergedCondition(), llvm::AArch64FrameLowering::emitEpilogue(), llvm::PPCFrameLowering::emitEpilogue(), llvm::X86AsmPrinter::emitInstruction(), llvm::AArch64FrameLowering::emitPrologue(), llvm::X86FrameLowering::emitPrologue(), llvm::ScheduleDAGSDNodes::EmitSchedule(), llvm::AsmPrinter::emitStackSizeSection(), llvm::AsmPrinter::emitStackUsage(), llvm::AsmPrinter::emitXRayTable(), llvm::AsmPrinter::emitXXStructorList(), foldFPToIntToFP(), getAIXExtendedAltivecABI(), llvm::GCNTTIImpl::getArithmeticInstrCost(), getBBSectionsFuncListBuf(), getBBSectionsType(), getDataSections(), llvm::TargetLoweringObjectFileXCOFF::getExplicitSectionGlobal(), llvm::AsmPrinter::getFunctionCFISectionType(), getFunctionSections(), getIgnoreXCOFFVisibility(), llvm::TargetLoweringObjectFile::getKindForGlobal(), llvm::TargetLowering::getNegatedExpression(), llvm::PPCTargetLowering::getNegatedExpression(), llvm::TargetLoweringBase::getPrefLoopAlignment(), llvm::LoongArchTargetMachine::getSubtargetImpl(), llvm::RISCVTargetMachine::getSubtargetImpl(), getUniqueBasicBlockSectionNames(), getUniqueSectionNames(), getXCOFFTracebackTable(), llvm::AArch64FrameLowering::hasFP(), llvm::SIFrameLowering::hasFP(), llvm::ARCFrameLowering::hasFP(), llvm::ARMFrameLowering::hasFP(), llvm::CSKYFrameLowering::hasFP(), llvm::LoongArchFrameLowering::hasFP(), llvm::M68kFrameLowering::hasFP(), llvm::MipsFrameLowering::hasFP(), llvm::MSP430FrameLowering::hasFP(), llvm::RISCVFrameLowering::hasFP(), llvm::SparcFrameLowering::hasFP(), llvm::SystemZELFFrameLowering::hasFP(), llvm::VEFrameLowering::hasFP(), llvm::X86FrameLowering::hasFP(), llvm::XCoreFrameLowering::hasFP(), llvm::LLVMTargetMachine::initAsmInfo(), llvm::TargetLoweringObjectFileELF::Initialize(), llvm::AArch64InstrInfo::isAssociativeAndCommutative(), isCombineInstrCandidateFP(), llvm::AArch64CallLowering::isEligibleForTailCallOptimization(), llvm::AMDGPUCallLowering::isEligibleForTailCallOptimization(), llvm::SITargetLowering::isEligibleForTailCallOptimization(), isFMAddSubOrFMSubAdd(), llvm::CodeGenPassBuilder< DerivedT >::isGlobalISelAbortEnabled(), llvm::TargetPassConfig::isGlobalISelAbortEnabled(), isLegalToCombineMinNumMaxNum(), llvm::AArch64TargetLowering::isProfitableToHoist(), llvm::PPCTargetLowering::isProfitableToHoist(), llvm::RISCVMachineFunctionInfo::isPushable(), llvm::BasicTTIImplBase< T >::isSingleThreaded(), llvm::AMDGPULegalizerInfo::legalizeFastUnsafeFDIV(), llvm::AMDGPULegalizerInfo::legalizeFastUnsafeFDIV64(), llvm::AMDGPULegalizerInfo::legalizeFExp(), llvm::SITargetLowering::LowerCall(), llvm::AArch64CallLowering::lowerCall(), llvm::SelectionDAGBuilder::LowerDeoptimizingReturn(), llvm::AMDGPUTargetLowering::lowerFEXP(), llvm::AMDGPUTargetLowering::LowerFLOGCommon(), LowerFMINIMUM_FMAXIMUM(), llvm::AArch64CallLowering::lowerFormalArguments(), llvm::LegalizerHelper::lowerFPTRUNC_F64_TO_F16(), llvm::AMDGPUCallLowering::lowerTailCall(), llvm::PPCFrameLowering::needsFP(), llvm::MachineFunction::needsFrameMoves(), llvm::OptLevelChanger::OptLevelChanger(), llvm::PPCFrameLowering::processFunctionBeforeFrameFinalized(), promoteToConstantPool(), llvm::CodeGenPassBuilder< DerivedT >::reportDiagnosticWhenGlobalISelFallback(), llvm::TargetPassConfig::reportDiagnosticWhenGlobalISelFallback(), llvm::SelectionDAGISel::runOnMachineFunction(), llvm::FastISel::selectOperator(), llvm::TargetLoweringObjectFileXCOFF::SelectSectionForGlobal(), setCFIFixup(), setFastISel(), setGlobalISel(), setGlobalISelAbort(), setMachineOutliner(), setSupportsDebugEntryValues(), setSupportsDefaultOutlining(), llvm::AsmPrinter::SetupMachineFunction(), llvm::ARMSubtarget::splitFramePushPop(), llvm::TargetPassConfig::TargetPassConfig(), llvm::DwarfCompileUnit::updateSubprogramScopeDIE(), useEmulatedTLS(), llvm::ARMSubtarget::useFastISel(), llvm::CSKYSubtarget::useHardFloatABI(), and llvm::NVPTXTargetLowering::usePrecSqrtF32().

◆ OptLevel

CodeGenOptLevel llvm::TargetMachine::OptLevel = CodeGenOptLevel::Default
protected

◆ PGOOption

std::optional<PGOOptions> llvm::TargetMachine::PGOOption
protected

Definition at line 116 of file TargetMachine.h.

Referenced by getPGOOption(), and setPGOOption().

◆ RequireStructuredCFG

unsigned llvm::TargetMachine::RequireStructuredCFG
protected

Definition at line 112 of file TargetMachine.h.

Referenced by requiresStructuredCFG(), and setRequiresStructuredCFG().

◆ RM

Reloc::Model llvm::TargetMachine::RM = Reloc::Static
protected

◆ STI

std::unique_ptr<const MCSubtargetInfo> llvm::TargetMachine::STI
protected

◆ TargetCPU

std::string llvm::TargetMachine::TargetCPU
protected

◆ TargetFS

std::string llvm::TargetMachine::TargetFS
protected

◆ TargetTriple

Triple llvm::TargetMachine::TargetTriple
protected

◆ TheTarget

const Target& llvm::TargetMachine::TheTarget
protected

The Target that this machine was created for.

Definition at line 85 of file TargetMachine.h.

Referenced by getTarget(), and llvm::LLVMTargetMachine::initAsmInfo().


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