class AMDGPUTargetInfo

Declaration

class AMDGPUTargetInfo : public TargetInfo { /* full declaration omitted */ };

Description

Exposes information about the current target.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:27

Inherits from: TargetInfo

Member Variables

private llvm::AMDGPU::GPUKind GPUKind

private unsigned int GPUFeatures

private unsigned int WavefrontSize

private llvm::StringMap<bool> OffloadArchFeatures

Target ID is device name followed by optional feature name postfixed by plus or minus sign delimitted by colon, e.g. gfx908:xnack+:sramecc-. If the target ID contains feature+, map it to true. If the target ID contains feature-, map it to false. If the target ID does not contain a feature (default), do not map it.

private std::string TargetID

private static const Builtin::Info[] BuiltinInfo

private static const char* const[] GCCRegNames

private static const clang::LangASMap AMDGPUDefIsGenMap

private static const clang::LangASMap AMDGPUDefIsPrivMap

Inherited from TargetInfo:

protected BigEndian

protected TLSSupported

protected VLASupported

protected NoAsmVariants

protected HasLegalHalfType

protected HasFloat128

protected HasFloat16

protected HasBFloat16

protected HasIbm128

protected HasLongDouble

protected HasFPReturn

protected HasStrictFP

protected MaxAtomicPromoteWidth

protected MaxAtomicInlineWidth

protected SimdDefaultAlign

protected DataLayoutString

protected UserLabelPrefix

protected MCountName

protected RegParmMax

protected SSERegParmMax

protected TheCXXABI

protected AddrSpaceMap

protected ProgramAddrSpace

protected PlatformName

protected PlatformMinVersion

protected HasAlignMac68kSupport

protected RealTypeUsesObjCFPRetMask

protected ComplexLongDoubleUsesFP2Ret

protected HasBuiltinMSVaList

protected IsRenderScriptTarget

protected HasAArch64SVETypes

protected HasRISCVVTypes

protected AllowAMDGPUUnsafeFPAtomics

protected ARMCDECoprocMask

protected MaxOpenCLWorkGroupSize

protected MaxBitIntWidth

protected DarwinTargetVariantTriple

protected UseAddrSpaceMapMangling

Inherited from TransferrableTargetInfo:

public PointerWidth

public PointerAlign

public BoolWidth

public BoolAlign

public IntWidth

public IntAlign

public HalfWidth

public HalfAlign

public BFloat16Width

public BFloat16Align

public FloatWidth

public FloatAlign

public DoubleWidth

public DoubleAlign

public LongDoubleWidth

public LongDoubleAlign

public Float128Align

public Ibm128Align

public LargeArrayMinWidth

public LargeArrayAlign

public LongWidth

public LongAlign

public LongLongWidth

public LongLongAlign

public ShortAccumWidth

public ShortAccumAlign

public AccumWidth

public AccumAlign

public LongAccumWidth

public LongAccumAlign

public ShortFractWidth

public ShortFractAlign

public FractWidth

public FractAlign

public LongFractWidth

public LongFractAlign

public PaddingOnUnsignedFixedPoint

public ShortAccumScale

public AccumScale

public LongAccumScale

public DefaultAlignForAttributeAligned

public MinGlobalAlign

public SuitableAlign

public NewAlign

public MaxVectorAlign

public MaxTLSAlign

public HalfFormat

public BFloat16Format

public FloatFormat

public DoubleFormat

public LongDoubleFormat

public Float128Format

public Ibm128Format

protected SizeType

protected IntMaxType

protected PtrDiffType

protected IntPtrType

protected WCharType

protected WIntType

protected Char16Type

protected Char32Type

protected Int64Type

protected Int16Type

protected SigAtomicType

protected ProcessIDType

protected UseSignedCharForObjCBool

protected UseBitFieldTypeAlignment

protected UseZeroLengthBitfieldAlignment

protected UseLeadingZeroLengthBitfield

protected UseExplicitBitFieldAlignment

protected ZeroLengthBitfieldBoundary

protected MaxAlignedAttribute

Method Overview

• public AMDGPUTargetInfo(const llvm::Triple & Triple, const clang::TargetOptions & Opts)
• public void adjust(clang::DiagnosticsEngine & Diags, clang::LangOptions & Opts)
• public clang::TargetInfo::CallingConvCheckResult checkCallingConvention(clang::CallingConv CC) const
• public std::string convertConstraint(const char *& Constraint) const
• public void fillValidCPUList(SmallVectorImpl<llvm::StringRef> & Values) const
• public clang::TargetInfo::BuiltinVaListKind getBuiltinVaListKind() const
• public clang::LangAS getCUDABuiltinAddressSpace(unsigned int AS) const
• public const char * getClobbers() const
• public llvm::Optional<LangAS> getConstantAddressSpace() const
• public Optional<unsigned int> getDWARFAddressSpace(unsigned int AddressSpace) const
• public ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const
• public ArrayRef<const char *> getGCCRegNames() const
• public const llvm::omp::GV & getGridValue() const
• public uint64_t getMaxPointerWidth() const
• public uint64_t getNullPointerValue(clang::LangAS AS) const
• public clang::LangAS getOpenCLBuiltinAddressSpace(unsigned int AS) const
• public clang::LangAS getOpenCLTypeAddrSpace(clang::OpenCLTypeKind TK) const
• public uint64_t getPointerAlignV(unsigned int AddrSpace) const
• public uint64_t getPointerWidthV(unsigned int AddrSpace) const
• public ArrayRef<Builtin::Info> getTargetBuiltins() const
• public void getTargetDefines(const clang::LangOptions & Opts, clang::MacroBuilder & Builder) const
• public Optional<std::string> getTargetID() const
• public unsigned int getVtblPtrAddressSpace() const
• public bool handleTargetFeatures(std::vector<std::string> & Features, clang::DiagnosticsEngine & Diags)
• public bool hasBitIntType() const
• private bool hasFMAF() const
• private bool hasFP64() const
• private bool hasFastFMA() const
• private bool hasFastFMAF() const
• private bool hasFullRateDenormalsF32() const
• private bool hasLDEXPF() const
• public bool initFeatureMap(llvm::StringMap<bool> & Features, clang::DiagnosticsEngine & Diags, llvm::StringRef CPU, const std::vector<std::string> & FeatureVec) const
• private static bool isAMDGCN(const llvm::Triple & TT)
• private static bool isR600(const llvm::Triple & TT)
• public bool isValidCPUName(llvm::StringRef Name) const
• public void setAddressSpaceMap(bool DefaultIsPrivate)
• public void setAuxTarget(const clang::TargetInfo * Aux)
• public bool setCPU(const std::string & Name)
• public void setSupportedOpenCLOpts()
• public bool useFP16ConversionIntrinsics() const
• public bool validateAsmConstraint(const char *& Name, TargetInfo::ConstraintInfo & Info) const

Inherited from TargetInfo:

• public CPUSpecificManglingCharacter
• public CreateTargetInfo
• public adjust
• public adjustTargetOptions
• public allowAMDGPUUnsafeFPAtomics
• public allowDebugInfoForExternalRef
• public allowsLargerPreferedTypeAlignment
• public checkArithmeticFenceSupported
• public checkCFProtectionBranchSupported
• public checkCFProtectionReturnSupported
• public checkCallingConvention
• public convertConstraint
• protected copyAuxTarget
• public defaultsToAIXPowerAlignment
• public doUnsignedFixedPointTypesHavePadding
• public fillValidCPUList
• public fillValidTuneCPUList
• public getABI
• public getARMCDECoprocMask
• public getAccumAlign
• public getAccumIBits
• public getAccumScale
• public getAccumWidth
• public getAddressSpaceMap
• public getBFloat16Align
• public getBFloat16Format
• public getBFloat16Mangling
• public getBFloat16Width
• public getBoolAlign
• public getBoolWidth
• public getBuiltinVaListKind
• public getCPUCacheLineSize
• public getCPUSpecificCPUDispatchFeatures
• public getCPUSpecificTuneName
• public getCUDABuiltinAddressSpace
• public getCXXABI
• public getCallingConvKind
• public getChar16Align
• public getChar16Type
• public getChar16Width
• public getChar32Align
• public getChar32Type
• public getChar32Width
• public getCharAlign
• public getCharWidth
• public getClobbers
• public getConstantAddressSpace
• public getConstraintRegister
• public getCorrespondingUnsignedType
• public getDWARFAddressSpace
• public getDarwinTargetVariantSDKVersion
• public getDarwinTargetVariantTriple
• public getDataLayoutString
• public getDefaultAlignForAttributeAligned
• public getDefaultCallingConv
• public getDoubleAlign
• public getDoubleFormat
• public getDoubleWidth
• public getEHDataRegisterNumber
• public getExnObjectAlignment
• public getFPEvalMethod
• public getFloat128Align
• public getFloat128Format
• public getFloat128Mangling
• public getFloat128Width
• public getFloatAlign
• public getFloatFormat
• public getFloatWidth
• public getFractAlign
• public getFractScale
• public getFractWidth
• protected getGCCAddlRegNames
• protected getGCCRegAliases
• protected getGCCRegNames
• public getGridValue
• public getHalfAlign
• public getHalfFormat
• public getHalfWidth
• public getIbm128Align
• public getIbm128Format
• public getIbm128Mangling
• public getIbm128Width
• public getInt16Type
• public getInt64Type
• public getIntAlign
• public getIntMaxTWidth
• public getIntMaxType
• public getIntPtrType
• public getIntTypeByWidth
• public getIntWidth
• public getLargeArrayAlign
• public getLargeArrayMinWidth
• public getLeastIntTypeByWidth
• public getLongAccumAlign
• public getLongAccumIBits
• public getLongAccumScale
• public getLongAccumWidth
• public getLongAlign
• public getLongDoubleAlign
• public getLongDoubleFormat
• public getLongDoubleMangling
• public getLongDoubleWidth
• public getLongFractAlign
• public getLongFractScale
• public getLongFractWidth
• public getLongLongAlign
• public getLongLongWidth
• public getLongWidth
• public getMCountName
• public getMaxAlignedAttribute
• public getMaxAtomicInlineWidth
• public getMaxAtomicPromoteWidth
• public getMaxBitIntWidth
• public getMaxOpenCLWorkGroupSize
• public getMaxPointerWidth
• public getMaxTLSAlign
• public getMaxVectorAlign
• public getMinGlobalAlign
• public getNewAlign
• public getNormalizedGCCRegisterName
• public getNullPointerValue
• public getOpenCLBuiltinAddressSpace
• public getOpenCLTypeAddrSpace
• public getPlatformMinVersion
• public getPlatformName
• public getPointerAlign
• protected getPointerAlignV
• public getPointerWidth
• protected getPointerWidthV
• public getProcessIDType
• public getProgramAddressSpace
• public getPtrDiffType
• protected getPtrDiffTypeV
• public getRealTypeByWidth
• public getRegParmMax
• public getRegisterWidth
• public getSDKVersion
• public getShortAccumAlign
• public getShortAccumIBits
• public getShortAccumScale
• public getShortAccumWidth
• public getShortAlign
• public getShortFractAlign
• public getShortFractScale
• public getShortFractWidth
• public getShortWidth
• public getSigAtomicType
• public getSignedSizeType
• public getSimdDefaultAlign
• public getSizeType
• public getStaticInitSectionSpecifier
• public getSuitableAlign
• public getSupportedOpenCLOpts
• public getSupportedOpenCLOpts
• public getTargetBuiltins
• public getTargetDefines
• public getTargetID
• public getTargetOpts
• public getTriple
• public getTypeAlign
• public getTypeConstantSuffix
• public getTypeFormatModifier
• public getTypeName
• public getTypeWidth
• public getUInt16Type
• public getUInt64Type
• public getUIntMaxType
• public getUIntPtrType
• public getUnsignedAccumIBits
• public getUnsignedAccumScale
• public getUnsignedFractScale
• public getUnsignedLongAccumIBits
• public getUnsignedLongAccumScale
• public getUnsignedLongFractScale
• public getUnsignedPtrDiffType
• public getUnsignedShortAccumIBits
• public getUnsignedShortAccumScale
• public getUnsignedShortFractScale
• public getUnwindWordWidth
• public getUserLabelPrefix
• public getVScaleRange
• public getVtblPtrAddressSpace
• public getWCharAlign
• public getWCharType
• public getWCharWidth
• public getWIntType
• public getZeroLengthBitfieldBoundary
• public handleAsmEscapedChar
• public handleTargetFeatures
• public hasAArch64SVETypes
• public hasAlignMac68kSupport
• public hasBFloat16Type
• public hasBitIntType
• public hasBuiltinAtomic
• public hasBuiltinMSVaList
• public hasFPReturn
• public hasFeature
• public hasFeatureEnabled
• public hasFloat128Type
• public hasFloat16Type
• public hasIbm128Type
• public hasInt128Type
• public hasLegalHalfType
• public hasLongDoubleType
• public hasNoAsmVariants
• public hasPS4DLLImportExport
• public hasProtectedVisibility
• public hasRISCVVTypes
• public hasSjLjLowering
• public hasStrictFP
• public initFeatureMap
• public isBigEndian
• public isBranchProtectionSupportedArch
• public isCLZForZeroUndef
• public isLittleEndian
• public isNan2008
• public isRenderScriptTarget
• public isSEHTrySupported
• public isSPRegName
• public isTLSSupported
• public isTypeSigned
• public isVLASupported
• public isValidCPUName
• public isValidClobber
• public isValidFeatureName
• public isValidGCCRegisterName
• public isValidTuneCPUName
• public multiVersionSortPriority
• public noSignedCharForObjCBool
• protected resetDataLayout
• public resolveSymbolicName
• public setABI
• public setAuxTarget
• public setCPU
• public setCommandLineOpenCLOpts
• public setFPMath
• public setFeatureEnabled
• public setMaxAtomicWidth
• public setSupportedOpenCLOpts
• public shouldDLLImportComdatSymbols
• public supportAllOpenCLOpts
• public supportSourceEvalMethod
• public supportsExtendIntArgs
• public supportsIFunc
• public supportsMultiVersioning
• public supportsTargetAttributeTune
• public useAddressSpaceMapMangling
• public useBitFieldTypeAlignment
• public useExplicitBitFieldAlignment
• public useFP16ConversionIntrinsics
• public useLeadingZeroLengthBitfield
• public useObjCFP2RetForComplexLongDouble
• public useObjCFPRetForRealType
• public useSignedCharForObjCBool
• public useZeroLengthBitfieldAlignment
• public validateAsmConstraint
• public validateBranchProtection
• public validateCPUSpecificCPUDispatch
• public validateConstraintModifier
• public validateCpuIs
• public validateCpuSupports
• public validateGlobalRegisterVariable
• public validateInputConstraint
• public validateInputSize
• public validateOpenCLTarget
• public validateOutputConstraint
• public validateOutputSize
• public validateTarget

Methods

¶AMDGPUTargetInfo(const llvm::Triple& Triple,
                 const clang::TargetOptions& Opts)

Declared at: clang/lib/Basic/Targets/AMDGPU.h:92

Parameters

const llvm::Triple& Triple

const clang::TargetOptions& Opts

¶void adjust(clang::DiagnosticsEngine& Diags,
            clang::LangOptions& Opts)

Description

Set forced language options. Apply changes to the target information with respect to certain language options which change the target configuration and adjust the language based on the target options where applicable.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:96

Parameters

clang::DiagnosticsEngine& Diags

clang::LangOptions& Opts

¶clang::TargetInfo::CallingConvCheckResult
checkCallingConvention(
    clang::CallingConv CC) const

Description

Determines whether a given calling convention is valid for the target. A calling convention can either be accepted, produce a warning and be substituted with the default calling convention, or (someday) produce an error (such as using thiscall on a non-instance function).

Declared at: clang/lib/Basic/Targets/AMDGPU.h:408

Parameters

clang::CallingConv CC

¶std::string convertConstraint(
    const char*& Constraint) const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:233

Parameters

const char*& Constraint

¶void fillValidCPUList(
    SmallVectorImpl<llvm::StringRef>& Values)
    const

Description

Fill a SmallVectorImpl with the valid values to setCPU.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:271

Parameters

SmallVectorImpl<llvm::StringRef>& Values

¶clang::TargetInfo::BuiltinVaListKind
getBuiltinVaListKind() const

Description

Returns the kind of __builtin_va_list type that should be used with this target.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:261

¶clang::LangAS getCUDABuiltinAddressSpace(
    unsigned int AS) const

Description

Map from the address space field in builtin description strings to the language address space.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:354

Parameters

unsigned int AS

¶const char* getClobbers() const

Description

Returns a string of target-specific clobbers, in LLVM format.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:116

¶llvm::Optional<LangAS> getConstantAddressSpace()
    const

Description

Return an AST address space which can be used opportunistically for constant global memory. It must be possible to convert pointers into this address space to LangAS::Default. If no such address space exists, this may return None, and such optimizations will be disabled.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:369

¶Optional<unsigned int> getDWARFAddressSpace(
    unsigned int AddressSpace) const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:396

Parameters

unsigned int AddressSpace

Returns

Otherwise return None and no conversion will be emitted in the DWARF.

¶ArrayRef<TargetInfo::GCCRegAlias>
getGCCRegAliases() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:120

¶ArrayRef<const char*> getGCCRegNames() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:118

¶const llvm::omp::GV& getGridValue() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:373

¶uint64_t getMaxPointerWidth() const

Description

Return the maximum width of pointers on this target.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:112

¶uint64_t getNullPointerValue(
    clang::LangAS AS) const

Description

Get integer value for null pointer.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:422

Parameters

clang::LangAS AS

¶clang::LangAS getOpenCLBuiltinAddressSpace(
    unsigned int AS) const

Description

Map from the address space field in builtin description strings to the language address space.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:337

Parameters

unsigned int AS

¶clang::LangAS getOpenCLTypeAddrSpace(
    clang::OpenCLTypeKind TK) const

Description

Get address space for OpenCL type.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:322

Parameters

clang::OpenCLTypeKind TK

¶uint64_t getPointerAlignV(
    unsigned int AddrSpace) const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:108

Parameters

unsigned int AddrSpace

¶uint64_t getPointerWidthV(
    unsigned int AddrSpace) const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:98

Parameters

unsigned int AddrSpace

¶ArrayRef<Builtin::Info> getTargetBuiltins() const

Description

Return information about target-specific builtins for the current primary target, and info about which builtins are non-portable across the current set of primary and secondary targets.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:254

¶void getTargetDefines(
    const clang::LangOptions& Opts,
    clang::MacroBuilder& Builder) const

Description

Appends the target-specific # define values for this target set to the specified buffer.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:258

Parameters

const clang::LangOptions& Opts

clang::MacroBuilder& Builder

¶Optional<std::string> getTargetID() const

Description

Returns the target ID if supported.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:452

¶unsigned int getVtblPtrAddressSpace() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:385

Returns

Target specific vtbl ptr address space.

¶bool handleTargetFeatures(
    std::vector<std::string>& Features,
    clang::DiagnosticsEngine& Diags)

Description

Perform initialization based on the user configured set of features (e.g., +sse4). The list is guaranteed to have at most one entry per feature. The target may modify the features list, to change which options are passed onwards to the backend. FIXME: This part should be fixed so that we can change handleTargetFeatures to merely a TargetInfo initialization routine.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:434

Parameters

std::vector<std::string>& Features

clang::DiagnosticsEngine& Diags

Returns

False on error.

¶bool hasBitIntType() const

Description

Determine whether the _BitInt type is supported on this target. This limitation is put into place for ABI reasons. FIXME: _BitInt is a required type in C23, so there's not much utility in asking whether the target supported it or not; I think this should be removed once backends have been alerted to the type and have had the chance to do implementation work if needed.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:430

¶bool hasFMAF() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:69

¶bool hasFP64() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:54

¶bool hasFastFMA() const

Description

Has fast fma f64

Declared at: clang/lib/Basic/Targets/AMDGPU.h:65

¶bool hasFastFMAF() const

Description

Has fast fma f32

Declared at: clang/lib/Basic/Targets/AMDGPU.h:60

¶bool hasFullRateDenormalsF32() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:74

¶bool hasLDEXPF() const

Declared at: clang/lib/Basic/Targets/AMDGPU.h:78

¶bool initFeatureMap(
    llvm::StringMap<bool>& Features,
    clang::DiagnosticsEngine& Diags,
    llvm::StringRef CPU,
    const std::vector<std::string>& FeatureVec)
    const

Description

Initialize the map with the default set of target features for the CPU this should include all legal feature strings on the target.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:250

Parameters

llvm::StringMap<bool>& Features

clang::DiagnosticsEngine& Diags

llvm::StringRef CPU

const std::vector<std::string>& FeatureVec

Returns

False on error (invalid features).

¶static bool isAMDGCN(const llvm::Triple& TT)

Declared at: clang/lib/Basic/Targets/AMDGPU.h:83

Parameters

const llvm::Triple& TT

¶static bool isR600(const llvm::Triple& TT)

Declared at: clang/lib/Basic/Targets/AMDGPU.h:87

Parameters

const llvm::Triple& TT

¶bool isValidCPUName(llvm::StringRef Name) const

Description

brief Determine whether this TargetInfo supports the given CPU name.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:265

Parameters

llvm::StringRef Name

¶void setAddressSpaceMap(bool DefaultIsPrivate)

Declared at: clang/lib/Basic/Targets/AMDGPU.h:94

Parameters

bool DefaultIsPrivate

¶void setAuxTarget(const clang::TargetInfo* Aux)

Declared at: clang/lib/Basic/Targets/AMDGPU.h:428

Parameters

const clang::TargetInfo* Aux

¶bool setCPU(const std::string& Name)

Description

Target the specified CPU.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:273

Parameters

const std::string& Name

Returns

False on error (invalid CPU name).

¶void setSupportedOpenCLOpts()

Description

Set supported OpenCL extensions and optional core features.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:285

¶bool useFP16ConversionIntrinsics() const

Description

Check whether llvm intrinsics such as llvm.convert.to.fp16 should be used to convert to and from __fp16. FIXME: This function should be removed once all targets stop using the conversion intrinsics.

Declared at: clang/lib/Basic/Targets/AMDGPU.h:256

¶bool validateAsmConstraint(
    const char*& Name,
    TargetInfo::ConstraintInfo& Info) const

Description

Accepted register names: (n, m is unsigned integer, n < m) v s a {vn}, {v[n]} {sn}, {s[n]} {an}, {a[n]} {S} , where S is a special register name /{v[n:m]} {s[n:m]} {a[n:m]}

Declared at: clang/lib/Basic/Targets/AMDGPU.h:135

Parameters

const char*& Name

TargetInfo::ConstraintInfo& Info