#include "llvm/Target/TargetOptions.h"

Public Member Functions
	TargetOptions ()
LLVM_ABI bool	DisableFramePointerElim (const MachineFunction &MF) const
	DisableFramePointerElim - This returns true if frame pointer elimination optimization should be disabled for the given machine function.
LLVM_ABI bool	FramePointerIsReserved (const MachineFunction &MF) const
	FramePointerIsReserved - This returns true if the frame pointer must always either point to a new frame record or be un-modified in the given function.
LLVM_ABI bool	HonorSignDependentRoundingFPMath () const
	HonorSignDependentRoundingFPMath - Return true if the codegen must assume that the rounding mode of the FPU can change from its default.
LLVM_ABI bool	ShouldEmitDebugEntryValues () const
	NOTE: There are targets that still do not support the debug entry values production.
void	setFPDenormalMode (DenormalMode Mode)
void	setFP32DenormalMode (DenormalMode Mode)
DenormalMode	getRawFPDenormalMode () const
DenormalMode	getRawFP32DenormalMode () const
LLVM_ABI DenormalMode	getDenormalMode (const fltSemantics &FPType) const

Public Attributes
std::pair< int, int >	BinutilsVersion {0, 0}
	If greater than 0, override the default value of MCAsmInfo::BinutilsVersion.
unsigned	UnsafeFPMath: 1
	UnsafeFPMath - This flag is enabled when the -enable-unsafe-fp-math flag is specified on the command line.
unsigned	NoInfsFPMath: 1
	NoInfsFPMath - This flag is enabled when the -enable-no-infs-fp-math flag is specified on the command line.
unsigned	NoNaNsFPMath: 1
	NoNaNsFPMath - This flag is enabled when the -enable-no-nans-fp-math flag is specified on the command line.
unsigned	NoTrappingFPMath: 1
	NoTrappingFPMath - This flag is enabled when the -enable-no-trapping-fp-math is specified on the command line.
unsigned	NoSignedZerosFPMath: 1
	NoSignedZerosFPMath - This flag is enabled when the -enable-no-signed-zeros-fp-math is specified on the command line.
unsigned	EnableAIXExtendedAltivecABI: 1
	EnableAIXExtendedAltivecABI - This flag returns true when -vec-extabi is specified.
unsigned	HonorSignDependentRoundingFPMathOption: 1
	HonorSignDependentRoundingFPMath - This returns true when the -enable-sign-dependent-rounding-fp-math is specified.
unsigned	NoZerosInBSS: 1
	NoZerosInBSS - By default some codegens place zero-initialized data to .bss section.
unsigned	GuaranteedTailCallOpt: 1
	GuaranteedTailCallOpt - This flag is enabled when -tailcallopt is specified on the commandline.
unsigned	StackSymbolOrdering: 1
	StackSymbolOrdering - When true, this will allow CodeGen to order the local stack symbols (for code size, code locality, or any other heuristics).
unsigned	EnableFastISel: 1
	EnableFastISel - This flag enables fast-path instruction selection which trades away generated code quality in favor of reducing compile time.
unsigned	EnableGlobalISel: 1
	EnableGlobalISel - This flag enables global instruction selection.
GlobalISelAbortMode	GlobalISelAbort = GlobalISelAbortMode::Enable
	EnableGlobalISelAbort - Control abort behaviour when global instruction selection fails to lower/select an instruction.
SwiftAsyncFramePointerMode	SwiftAsyncFramePointer
	Control when and how the Swift async frame pointer bit should be set.
unsigned	UseInitArray: 1
	UseInitArray - Use .init_array instead of .ctors for static constructors.
unsigned	DisableIntegratedAS: 1
	Disable the integrated assembler.
unsigned	FunctionSections: 1
	Emit functions into separate sections.
unsigned	DataSections: 1
	Emit data into separate sections.
unsigned	IgnoreXCOFFVisibility: 1
	Do not emit visibility attribute for xcoff.
unsigned	XCOFFTracebackTable: 1
	Emit XCOFF traceback table.
unsigned	UniqueSectionNames: 1
unsigned	UniqueBasicBlockSectionNames: 1
	Use unique names for basic block sections.
unsigned	SeparateNamedSections: 1
	Emit named sections with the same name into different sections.
unsigned	TrapUnreachable: 1
	Emit target-specific trap instruction for 'unreachable' IR instructions.
unsigned	NoTrapAfterNoreturn: 1
	Do not emit a trap instruction for 'unreachable' IR instructions behind noreturn calls, even if TrapUnreachable is true.
unsigned	TLSSize: 8
	Bit size of immediate TLS offsets (0 == use the default).
unsigned	EmulatedTLS: 1
	EmulatedTLS - This flag enables emulated TLS model, using emutls function in the runtime library.
unsigned	EnableTLSDESC: 1
	EnableTLSDESC - This flag enables TLS Descriptors.
unsigned	EnableIPRA: 1
	This flag enables InterProcedural Register Allocation (IPRA).
unsigned	EmitStackSizeSection: 1
	Emit section containing metadata on function stack sizes.
unsigned	EnableMachineOutliner: 1
	Enables the MachineOutliner pass.
unsigned	EnableMachineFunctionSplitter: 1
	Enables the MachineFunctionSplitter pass.
unsigned	EnableStaticDataPartitioning: 1
	Enables the StaticDataSplitter pass.
unsigned	SupportsDefaultOutlining: 1
	Set if the target supports default outlining behaviour.
unsigned	EmitAddrsig: 1
	Emit address-significance table.
unsigned	BBAddrMap: 1
BasicBlockSection	BBSections = BasicBlockSection::None
	Emit basic blocks into separate sections.
std::shared_ptr< MemoryBuffer >	BBSectionsFuncListBuf
	Memory Buffer that contains information on sampled basic blocks and used to selectively generate basic block sections.
unsigned	EmitCallGraphSection: 1
	Emit section containing call graph metadata.
unsigned	EmitCallSiteInfo: 1
	The flag enables call site info production.
unsigned	SupportsDebugEntryValues: 1
	Set if the target supports the debug entry values by default.
unsigned	EnableDebugEntryValues: 1
	When set to true, the EnableDebugEntryValues option forces production of debug entry values even if the target does not officially support it.
unsigned	ValueTrackingVariableLocations: 1
unsigned	ForceDwarfFrameSection: 1
	Emit DWARF debug frame section.
unsigned	XRayFunctionIndex: 1
	Emit XRay Function Index section.
unsigned	DebugStrictDwarf: 1
	When set to true, don't use DWARF extensions in later DWARF versions.
unsigned	Hotpatch: 1
	Emit the hotpatch flag in CodeView debug.
unsigned	PPCGenScalarMASSEntries: 1
	Enables scalar MASS conversions.
unsigned	JMCInstrument: 1
	Enable JustMyCode instrumentation.
unsigned	EnableCFIFixup: 1
	Enable the CFIFixup pass.
unsigned	MisExpect: 1
	When set to true, enable MisExpect Diagnostics By default, it is set to false.
unsigned	XCOFFReadOnlyPointers: 1
	When set to true, const objects with relocatable address values are put into the RO data section.
unsigned	VerifyArgABICompliance: 1
	When set to true, call/return argument extensions of narrow integers are verified in the target backend if it cares about them.
std::string	StackUsageOutput
	Name of the stack usage file (i.e., .su file) if user passes -fstack-usage.
unsigned	LoopAlignment = 0
	If greater than 0, override TargetLoweringBase::PrefLoopAlignment.
FloatABI::ABIType	FloatABIType = FloatABI::Default
	FloatABIType - This setting is set by -float-abi=xxx option is specfied on the command line.
FPOpFusion::FPOpFusionMode	AllowFPOpFusion = FPOpFusion::Standard
	AllowFPOpFusion - This flag is set by the -fp-contract=xxx option.
ThreadModel::Model	ThreadModel = ThreadModel::POSIX
	ThreadModel - This flag specifies the type of threading model to assume for things like atomics.
EABI	EABIVersion = EABI::Default
	EABIVersion - This flag specifies the EABI version.
DebuggerKind	DebuggerTuning = DebuggerKind::Default
	Which debugger to tune for.
ExceptionHandling	ExceptionModel = ExceptionHandling::None
	What exception model to use.
MCTargetOptions	MCOptions
	Machine level options.
std::string	ObjectFilenameForDebug
	Stores the filename/path of the final .o/.obj file, to be written in the debug information.

Detailed Description

Definition at line 118 of file TargetOptions.h.

Constructor & Destructor Documentation

◆ TargetOptions()

llvm::TargetOptions::TargetOptions ( )

inline

Definition at line 120 of file TargetOptions.h.

References BBAddrMap, DataSections, DebugStrictDwarf, DisableIntegratedAS, EmitAddrsig, EmitCallGraphSection, EmitCallSiteInfo, EmitStackSizeSection, EmulatedTLS, EnableAIXExtendedAltivecABI, EnableCFIFixup, EnableDebugEntryValues, EnableFastISel, EnableGlobalISel, EnableIPRA, EnableMachineFunctionSplitter, EnableMachineOutliner, EnableStaticDataPartitioning, EnableTLSDESC, ForceDwarfFrameSection, FunctionSections, GuaranteedTailCallOpt, HonorSignDependentRoundingFPMathOption, Hotpatch, llvm::IEEE, IgnoreXCOFFVisibility, JMCInstrument, MisExpect, NoInfsFPMath, NoNaNsFPMath, NoSignedZerosFPMath, NoTrapAfterNoreturn, NoTrappingFPMath, NoZerosInBSS, PPCGenScalarMASSEntries, SeparateNamedSections, StackSymbolOrdering, SupportsDebugEntryValues, SupportsDefaultOutlining, TLSSize, TrapUnreachable, UniqueBasicBlockSectionNames, UniqueSectionNames, UnsafeFPMath, UseInitArray, ValueTrackingVariableLocations, VerifyArgABICompliance, XCOFFReadOnlyPointers, XCOFFTracebackTable, and XRayFunctionIndex.

Member Function Documentation

◆ DisableFramePointerElim()

bool TargetOptions::DisableFramePointerElim ( const MachineFunction & MF ) const

DisableFramePointerElim - This returns true if frame pointer elimination optimization should be disabled for the given machine function.

Definition at line 24 of file TargetOptionsImpl.cpp.

References F, FP, llvm::MachineFunction::getFrameInfo(), llvm::MachineFunction::getFunction(), llvm::Attribute::getValueAsString(), llvm::MachineFrameInfo::hasCalls(), llvm::Attribute::isValid(), and llvm_unreachable.

◆ FramePointerIsReserved()

bool TargetOptions::FramePointerIsReserved ( const MachineFunction & MF ) const

FramePointerIsReserved - This returns true if the frame pointer must always either point to a new frame record or be un-modified in the given function.

Definition at line 40 of file TargetOptionsImpl.cpp.

References llvm::StringSwitch< T, R >::Case(), llvm::StringSwitch< T, R >::Cases(), F, llvm::MachineFunction::getFunction(), llvm::Attribute::getValueAsString(), and llvm::Attribute::isValid().

Referenced by llvm::ARMSubtarget::getPushPopSplitVariation(), llvm::X86RegisterInfo::getReservedRegs(), and llvm::ARMFrameLowering::isFPReserved().

◆ getDenormalMode()

LLVM_ABI DenormalMode llvm::TargetOptions::getDenormalMode ( const fltSemantics & FPType ) const

References LLVM_ABI.

◆ getRawFP32DenormalMode()

DenormalMode llvm::TargetOptions::getRawFP32DenormalMode ( ) const

inline

Definition at line 435 of file TargetOptions.h.

◆ getRawFPDenormalMode()

DenormalMode llvm::TargetOptions::getRawFPDenormalMode ( ) const

inline

Definition at line 433 of file TargetOptions.h.

◆ HonorSignDependentRoundingFPMath()

bool TargetOptions::HonorSignDependentRoundingFPMath ( ) const

HonorSignDependentRoundingFPMath - Return true if the codegen must assume that the rounding mode of the FPU can change from its default.

Definition at line 53 of file TargetOptionsImpl.cpp.

References HonorSignDependentRoundingFPMathOption, and UnsafeFPMath.

◆ setFP32DenormalMode()

void llvm::TargetOptions::setFP32DenormalMode ( DenormalMode Mode )

inline

Definition at line 431 of file TargetOptions.h.

References Mode.

◆ setFPDenormalMode()

void llvm::TargetOptions::setFPDenormalMode ( DenormalMode Mode )

inline

Definition at line 429 of file TargetOptions.h.

References Mode.

◆ ShouldEmitDebugEntryValues()

bool TargetOptions::ShouldEmitDebugEntryValues ( ) const

NOTE: There are targets that still do not support the debug entry values production.

NOTE: There are targets that still do not support the debug entry values production and that is being controlled with the SupportsDebugEntryValues.

In addition, SCE debugger does not have the feature implemented, so prefer not to emit the debug entry values in that case. The EnableDebugEntryValues can be used for the testing purposes.

Definition at line 62 of file TargetOptionsImpl.cpp.

References DebuggerTuning, EnableDebugEntryValues, llvm::SCE, and SupportsDebugEntryValues.

Member Data Documentation

◆ AllowFPOpFusion

FPOpFusion::FPOpFusionMode llvm::TargetOptions::AllowFPOpFusion = FPOpFusion::Standard

AllowFPOpFusion - This flag is set by the -fp-contract=xxx option.

This controls the creation of fused FP ops that store intermediate results in higher precision than IEEE allows (E.g. FMAs).

Fast mode - allows formation of fused FP ops whenever they're profitable. Standard mode - allow fusion only for 'blessed' FP ops. At present the only blessed op is the fmuladd intrinsic. In the future more blessed ops may be added. Strict mode - allow fusion only if/when it can be proven that the excess precision won't effect the result.

Note: This option only controls formation of fused ops by the optimizers. Fused operations that are explicitly specified (e.g. FMA via the llvm.fma.* intrinsic) will always be honored, regardless of the value of this option.

Definition at line 408 of file TargetOptions.h.

Referenced by llvm::NVPTXTargetLowering::allowFMA(), and combineFaddCFmul().

◆ BBAddrMap

unsigned llvm::TargetOptions::BBAddrMap

Definition at line 308 of file TargetOptions.h.

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ TargetOptions()

Member Function Documentation

◆ DisableFramePointerElim()

◆ FramePointerIsReserved()

◆ getDenormalMode()

◆ getRawFP32DenormalMode()

◆ getRawFPDenormalMode()

◆ HonorSignDependentRoundingFPMath()

◆ setFP32DenormalMode()

◆ setFPDenormalMode()

◆ ShouldEmitDebugEntryValues()

Member Data Documentation

◆ AllowFPOpFusion

◆ BBAddrMap

◆ BBSections

◆ BBSectionsFuncListBuf

◆ BinutilsVersion

◆ DataSections

◆ DebuggerTuning

◆ DebugStrictDwarf

◆ DisableIntegratedAS

◆ EABIVersion

◆ EmitAddrsig

◆ EmitCallGraphSection

◆ EmitCallSiteInfo

◆ EmitStackSizeSection

◆ EmulatedTLS

◆ EnableAIXExtendedAltivecABI

◆ EnableCFIFixup

◆ EnableDebugEntryValues

◆ EnableFastISel

◆ EnableGlobalISel

◆ EnableIPRA

◆ EnableMachineFunctionSplitter

◆ EnableMachineOutliner

◆ EnableStaticDataPartitioning

◆ EnableTLSDESC

◆ ExceptionModel

◆ FloatABIType

◆ ForceDwarfFrameSection

◆ FunctionSections

◆ GlobalISelAbort

◆ GuaranteedTailCallOpt

◆ HonorSignDependentRoundingFPMathOption

◆ Hotpatch

◆ IgnoreXCOFFVisibility

◆ JMCInstrument

◆ LoopAlignment

◆ MCOptions

◆ MisExpect

◆ NoInfsFPMath

◆ NoNaNsFPMath

◆ NoSignedZerosFPMath

◆ NoTrapAfterNoreturn

◆ NoTrappingFPMath

◆ NoZerosInBSS

◆ ObjectFilenameForDebug

◆ PPCGenScalarMASSEntries

◆ SeparateNamedSections

◆ StackSymbolOrdering

◆ StackUsageOutput

◆ SupportsDebugEntryValues

◆ SupportsDefaultOutlining

◆ SwiftAsyncFramePointer

◆ ThreadModel

◆ TLSSize

◆ TrapUnreachable

◆ UniqueBasicBlockSectionNames

◆ UniqueSectionNames

◆ UnsafeFPMath

◆ UseInitArray

◆ ValueTrackingVariableLocations

◆ VerifyArgABICompliance

◆ XCOFFReadOnlyPointers

◆ XCOFFTracebackTable

◆ XRayFunctionIndex