A parsed version of the target data layout string in and methods for querying it. More...

#include "llvm/IR/DataLayout.h"

Public Types
enum	FunctionPtrAlignType { FunctionPtrAlignType::Independent, FunctionPtrAlignType::MultipleOfFunctionAlign }

Public Member Functions
	DataLayout (StringRef LayoutDescription)
	Constructs a DataLayout from a specification string. See reset(). More...

	DataLayout (const Module *M)
	Initialize target data from properties stored in the module. More...

	DataLayout (const DataLayout &DL)

	~DataLayout ()

DataLayout &	operator= (const DataLayout &DL)

bool	operator== (const DataLayout &Other) const

bool	operator!= (const DataLayout &Other) const

void	init (const Module *M)

void	reset (StringRef LayoutDescription)
	Parse a data layout string (with fallback to default values). More...

bool	isLittleEndian () const
	Layout endianness... More...

bool	isBigEndian () const

const std::string &	getStringRepresentation () const
	Returns the string representation of the DataLayout. More...

bool	isDefault () const
	Test if the DataLayout was constructed from an empty string. More...

bool	isLegalInteger (uint64_t Width) const
	Returns true if the specified type is known to be a native integer type supported by the CPU. More...

bool	isIllegalInteger (uint64_t Width) const

bool	exceedsNaturalStackAlignment (llvm::Align Align) const
	Returns true if the given alignment exceeds the natural stack alignment. More...

unsigned	getStackAlignment () const

unsigned	getAllocaAddrSpace () const

MaybeAlign	getFunctionPtrAlign () const
	Returns the alignment of function pointers, which may or may not be related to the alignment of functions. More...

FunctionPtrAlignType	getFunctionPtrAlignType () const
	Return the type of function pointer alignment. More...

unsigned	getProgramAddressSpace () const

bool	hasMicrosoftFastStdCallMangling () const

bool	doNotMangleLeadingQuestionMark () const
	Returns true if symbols with leading question marks should not receive IR mangling. More...

bool	hasLinkerPrivateGlobalPrefix () const

StringRef	getLinkerPrivateGlobalPrefix () const

char	getGlobalPrefix () const

StringRef	getPrivateGlobalPrefix () const

bool	fitsInLegalInteger (unsigned Width) const
	Returns true if the specified type fits in a native integer type supported by the CPU. More...

unsigned	getPointerABIAlignment (unsigned AS) const
	Layout pointer alignment. More...

unsigned	getPointerPrefAlignment (unsigned AS=0) const
	Return target's alignment for stack-based pointers FIXME: The defaults need to be removed once all of the backends/clients are updated. More...

unsigned	getPointerSize (unsigned AS=0) const
	Layout pointer size FIXME: The defaults need to be removed once all of the backends/clients are updated. More...

unsigned	getMaxPointerSize () const
	Returns the maximum pointer size over all address spaces. More...

unsigned	getIndexSize (unsigned AS) const

ArrayRef< unsigned >	getNonIntegralAddressSpaces () const
	Return the address spaces containing non-integral pointers. More...

bool	isNonIntegralAddressSpace (unsigned AddrSpace) const

bool	isNonIntegralPointerType (PointerType *PT) const

bool	isNonIntegralPointerType (Type *Ty) const

unsigned	getPointerSizeInBits (unsigned AS=0) const
	Layout pointer size, in bits FIXME: The defaults need to be removed once all of the backends/clients are updated. More...

unsigned	getMaxPointerSizeInBits () const
	Returns the maximum pointer size over all address spaces. More...

unsigned	getIndexSizeInBits (unsigned AS) const
	Size in bits of index used for address calculation in getelementptr. More...

unsigned	getPointerTypeSizeInBits (Type *) const
	Layout pointer size, in bits, based on the type. More...

unsigned	getIndexTypeSizeInBits (Type *Ty) const
	Layout size of the index used in GEP calculation. More...

unsigned	getPointerTypeSize (Type *Ty) const

uint64_t	getTypeSizeInBits (Type *Ty) const
	Size examples: More...

uint64_t	getTypeStoreSize (Type *Ty) const
	Returns the maximum number of bytes that may be overwritten by storing the specified type. More...

uint64_t	getTypeStoreSizeInBits (Type *Ty) const
	Returns the maximum number of bits that may be overwritten by storing the specified type; always a multiple of 8. More...

bool	typeSizeEqualsStoreSize (Type *Ty) const
	Returns true if no extra padding bits are needed when storing the specified type. More...

uint64_t	getTypeAllocSize (Type *Ty) const
	Returns the offset in bytes between successive objects of the specified type, including alignment padding. More...

uint64_t	getTypeAllocSizeInBits (Type *Ty) const
	Returns the offset in bits between successive objects of the specified type, including alignment padding; always a multiple of 8. More...

unsigned	getABITypeAlignment (Type *Ty) const
	Returns the minimum ABI-required alignment for the specified type. More...

unsigned	getABIIntegerTypeAlignment (unsigned BitWidth) const
	Returns the minimum ABI-required alignment for an integer type of the specified bitwidth. More...

unsigned	getPrefTypeAlignment (Type *Ty) const
	Returns the preferred stack/global alignment for the specified type. More...

IntegerType *	getIntPtrType (LLVMContext &C, unsigned AddressSpace=0) const
	Returns an integer type with size at least as big as that of a pointer in the given address space. More...

Type *	getIntPtrType (Type *) const
	Returns an integer (vector of integer) type with size at least as big as that of a pointer of the given pointer (vector of pointer) type. More...

Type *	getSmallestLegalIntType (LLVMContext &C, unsigned Width=0) const
	Returns the smallest integer type with size at least as big as Width bits. More...

Type *	getLargestLegalIntType (LLVMContext &C) const
	Returns the largest legal integer type, or null if none are set. More...

unsigned	getLargestLegalIntTypeSizeInBits () const
	Returns the size of largest legal integer type size, or 0 if none are set. More...

Type *	getIndexType (Type *PtrTy) const
	Returns the type of a GEP index. More...

int64_t	getIndexedOffsetInType (Type ElemTy, ArrayRef< Value > Indices) const
	Returns the offset from the beginning of the type for the specified indices. More...

const StructLayout *	getStructLayout (StructType *Ty) const
	Returns a StructLayout object, indicating the alignment of the struct, its size, and the offsets of its fields. More...

unsigned	getPreferredAlignment (const GlobalVariable *GV) const
	Returns the preferred alignment of the specified global. More...

unsigned	getPreferredAlignmentLog (const GlobalVariable *GV) const
	Returns the preferred alignment of the specified global, returned in log form. More...

Static Public Member Functions
static const char *	getManglingComponent (const Triple &T)

Detailed Description

A parsed version of the target data layout string in and methods for querying it.

The target data layout string is specified by the target - a frontend generating LLVM IR is required to generate the right target data for the target being codegen'd to.

Definition at line 111 of file DataLayout.h.

Member Enumeration Documentation

◆ FunctionPtrAlignType

enum llvm::DataLayout::FunctionPtrAlignType

strong

Enumerator
Independent	The function pointer alignment is independent of the function alignment.
MultipleOfFunctionAlign	The function pointer alignment is a multiple of the function alignment.

Definition at line 113 of file DataLayout.h.

Constructor & Destructor Documentation

◆ DataLayout() [1/3]

llvm::DataLayout::DataLayout ( StringRef LayoutDescription )

inlineexplicit

Constructs a DataLayout from a specification string. See reset().

Definition at line 196 of file DataLayout.h.

◆ DataLayout() [2/3]

DataLayout::DataLayout ( const Module * M )

explicit

Initialize target data from properties stored in the module.

Definition at line 448 of file DataLayout.cpp.

References llvm::cl::init().

◆ DataLayout() [3/3]

llvm::DataLayout::DataLayout ( const DataLayout & DL )

inline

Definition at line 203 of file DataLayout.h.

◆ ~DataLayout()

DataLayout::~DataLayout ( )

Definition at line 606 of file DataLayout.cpp.

References clear().

Member Function Documentation

◆ doNotMangleLeadingQuestionMark()

bool llvm::DataLayout::doNotMangleLeadingQuestionMark ( ) const

inline

Returns true if symbols with leading question marks should not receive IR mangling.

True for Windows mangling modes.

Definition at line 291 of file DataLayout.h.

Referenced by llvm::Mangler::getNameWithPrefix(), and getNameWithPrefixImpl().

◆ exceedsNaturalStackAlignment()

bool llvm::DataLayout::exceedsNaturalStackAlignment ( llvm::Align Align ) const

inline

Returns true if the given alignment exceeds the natural stack alignment.

Definition at line 265 of file DataLayout.h.

Referenced by enforceKnownAlignment(), and getMemcpyLoadsAndStores().

◆ fitsInLegalInteger()

bool llvm::DataLayout::fitsInLegalInteger ( unsigned Width ) const

inline

Returns true if the specified type fits in a native integer type supported by the CPU.

For example, if the CPU only supports i32 as a native integer type, then i27 fits in a legal integer type but i45 does not.

Definition at line 340 of file DataLayout.h.

References getMaxPointerSize(), and getPointerSize().

Referenced by llvm::MemoryDependenceResults::getLoadLoadClobberFullWidthSize(), and ReduceSwitchRange().

◆ getABIIntegerTypeAlignment()

unsigned DataLayout::getABIIntegerTypeAlignment ( unsigned BitWidth ) const

Returns the minimum ABI-required alignment for an integer type of the specified bitwidth.

getABIIntegerTypeAlignment - Return the minimum ABI-required alignment for an integer type of the specified bitwidth.

Definition at line 758 of file DataLayout.cpp.

References llvm::INTEGER_ALIGN.

Referenced by llvm::MachineJumpTableInfo::getEntryAlignment().

◆ getABITypeAlignment()

unsigned DataLayout::getABITypeAlignment ( Type * Ty ) const

Returns the minimum ABI-required alignment for the specified type.

Definition at line 752 of file DataLayout.cpp.

References llvm::StructLayout::getAlignment().

Referenced by llvm::AMDGPUMachineFunction::allocateLDSGlobal(), llvm::TargetLoweringBase::allowsMemoryAccess(), llvm::AMDGPUTargetLowering::analyzeFormalArgumentsCompute(), llvm::analyzeStandardArguments(), buildPCRelGlobalAddress(), llvm::FastISel::createMachineMemOperandFor(), dump(), findLoadAlignment(), findMatchingInlineAsmOperand(), findStoreAlignment(), llvm::MipsTargetLowering::getABIAlignmentForCallingConv(), llvm::ARMTargetLowering::getABIAlignmentForCallingConv(), llvm::TargetLoweringBase::getABIAlignmentForCallingConv(), getAdjustedAlignment(), getBuildPairElt(), llvm::X86TargetLowering::getByValTypeAlignment(), llvm::TargetLoweringBase::getByValTypeAlignment(), llvm::SelectionDAG::getConstantPool(), llvm::SelectionDAG::getEVTAlignment(), getMemcpyLoadsAndStores(), getMemmoveLoadsAndStores(), getMemsetStores(), getOpenCLAlignment(), llvm::Value::getPointerAlignment(), llvm::NVPTXTargetLowering::getPrototype(), getTypePartition(), INITIALIZE_PASS(), isAligned(), isCallPromotable(), llvm::isDereferenceableAndAlignedPointer(), isKnownTypeIdMember(), llvm::HexagonTargetLowering::isLegalAddressingMode(), llvm::isSafeToLoadUnconditionally(), isSupportedType(), isWorthFoldingADDlow(), llvm::NVPTXTargetLowering::LowerFormalArguments(), llvm::NVPTXTargetLowering::LowerReturn(), mergeConditionalStoreToAddress(), mergeInlinedArrayAllocas(), moveUp(), numVectorEltsOrZero(), llvm::PPCTargetLowering::PerformDAGCombine(), promotedOpIsNUW(), llvm::promoteLoopAccessesToScalars(), llvm::CallLowering::setArgFlags(), ShrinkLoadReplaceStoreWithStore(), SRAGlobal(), StackMallocSizeClass(), tryToElideArgumentCopy(), TypeSizeToSizeIndex(), unpackLoadToAggregate(), unpackStoreToAggregate(), llvm::InnerLoopVectorizer::vectorizeMemoryInstruction(), llvm::sroa::AllocaSliceRewriter::visit(), llvm::InstCombiner::visitAtomicRMWInst(), VisitGlobalVariableForEmission(), and XFormVExtractWithShuffleIntoLoad().

◆ getAllocaAddrSpace()

unsigned llvm::DataLayout::getAllocaAddrSpace ( ) const

inline

◆ getFunctionPtrAlign()

MaybeAlign llvm::DataLayout::getFunctionPtrAlign ( ) const

inline

Returns the alignment of function pointers, which may or may not be related to the alignment of functions.

See also: getFunctionPtrAlignType

Definition at line 275 of file DataLayout.h.

Referenced by llvm::Value::getPointerAlignment().

◆ getFunctionPtrAlignType()

FunctionPtrAlignType llvm::DataLayout::getFunctionPtrAlignType ( ) const

inline

Return the type of function pointer alignment.

See also: getFunctionPtrAlign

Definition at line 279 of file DataLayout.h.

Referenced by llvm::Value::getPointerAlignment().

◆ getGlobalPrefix()

char llvm::DataLayout::getGlobalPrefix ( ) const

inline

Definition at line 303 of file DataLayout.h.

References llvm_unreachable.

Referenced by llvm::emitLinkerFlagsForGlobalCOFF(), llvm::Mangler::getNameWithPrefix(), and getNameWithPrefixImpl().

◆ getIndexedOffsetInType()

int64_t DataLayout::getIndexedOffsetInType	(	Type *	ElemTy,
		ArrayRef< Value *>	Indices
	)		const

Returns the offset from the beginning of the type for the specified indices.

Note that this takes the element type, not the pointer type. This is used to implement getelementptr.

Definition at line 803 of file DataLayout.cpp.

References assert(), llvm::gep_type_begin(), llvm::gep_type_end(), llvm::StructLayout::getElementOffset(), llvm::generic_gep_type_iterator< ItTy >::getIndexedType(), llvm::generic_gep_type_iterator< ItTy >::getOperand(), llvm::generic_gep_type_iterator< ItTy >::getStructTypeOrNull(), llvm::Value::getType(), and llvm::Type::isIntegerTy().

Referenced by llvm::ConstantFoldLoadFromConstPtr(), findLoadCallsAtConstantOffset(), getOffsetFromIndices(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ getIndexSize()

unsigned DataLayout::getIndexSize ( unsigned AS ) const

Definition at line 675 of file DataLayout.cpp.

References assert(), and I.

◆ getIndexSizeInBits()

unsigned llvm::DataLayout::getIndexSizeInBits ( unsigned AS ) const

inline

Size in bits of index used for address calculation in getelementptr.

Definition at line 399 of file DataLayout.h.

Referenced by llvm::GEPOperator::accumulateConstantOffset(), llvm::GISelKnownBits::computeKnownBitsImpl(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getEstimatedNumberOfCaseClusters(), getTypePartition(), llvm::isConsecutiveAccess(), llvm::TargetLoweringBase::rangeFitsInWord(), SimplifyGEPInst(), AADereferenceableFloating::updateImpl(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ getIndexType()

Type * DataLayout::getIndexType ( Type * PtrTy ) const

Returns the type of a GEP index.

If it was not specified explicitly, it will be the integer type of the pointer width - IntPtrType.

Definition at line 793 of file DataLayout.cpp.

References assert(), llvm::IntegerType::get(), llvm::VectorType::get(), llvm::Type::getContext(), and llvm::Type::isPtrOrPtrVectorTy().

◆ getIndexTypeSizeInBits()

unsigned DataLayout::getIndexTypeSizeInBits ( Type * Ty ) const

Layout size of the index used in GEP calculation.

The function should be called with pointer or vector of pointers type.

Definition at line 684 of file DataLayout.cpp.

References llvm::AGGREGATE_ALIGN, llvm::Type::ArrayTyID, assert(), llvm::Type::DoubleTyID, llvm::FLOAT_ALIGN, llvm::Type::FloatTyID, llvm::Type::FP128TyID, llvm::StructLayout::getAlignment(), llvm::Type::getScalarType(), llvm::Type::getTypeID(), llvm::Type::HalfTyID, llvm::INTEGER_ALIGN, llvm::Type::IntegerTyID, llvm::Type::isPtrOrPtrVectorTy(), llvm::Type::isSized(), llvm::Type::LabelTyID, llvm_unreachable, llvm::max(), llvm::Type::PointerTyID, llvm::Type::PPC_FP128TyID, llvm::Type::StructTyID, llvm::VECTOR_ALIGN, llvm::Type::VectorTyID, llvm::Type::X86_FP80TyID, and llvm::Type::X86_MMXTyID.

Referenced by llvm::detail::PtrUseVisitorBase::adjustOffsetForGEP(), llvm::copyRangeMetadata(), getAsConstantIndexedAddress(), getBitWidth(), getNaturalGEPWithType(), llvm::GetPointerBaseWithConstantOffset(), llvm::IsConstantOffsetFromGlobal(), llvm::isDereferenceableAndAlignedPointer(), isSafePHIToSpeculate(), llvm::isSafeToLoadUnconditionally(), llvm::Value::stripAndAccumulateConstantOffsets(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ getIntPtrType() [1/2]

IntegerType * DataLayout::getIntPtrType	(	LLVMContext &	C,
		unsigned	AddressSpace = `0`
	)		const

Returns an integer type with size at least as big as that of a pointer in the given address space.

Definition at line 766 of file DataLayout.cpp.

References llvm::IntegerType::get().

Referenced by llvm::VNCoercion::coerceAvailableValueToLoadTypeHelper(), llvm::ObjectSizeOffsetEvaluator::compute(), llvm::ConstantFoldCompareInstOperands(), llvm::ConstantFoldLoadFromConstPtr(), llvm::ConstantFoldLoadThroughBitcast(), ConvertDoubleToBytes(), llvm::convertPointerToIntegerType(), convertValue(), createMaskInstrs(), llvm::createThreadSanitizerLegacyPassPass(), llvm::emitBCmp(), llvm::emitCalloc(), llvm::emitFReadUnlocked(), llvm::emitFWrite(), llvm::emitFWriteUnlocked(), llvm::EmitGEPOffset(), llvm::emitMalloc(), llvm::emitMemChr(), llvm::emitMemCmp(), llvm::emitMemCpyChk(), llvm::emitStrLen(), llvm::emitStrNCmp(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemset(), evaluateGEPOffsetExpression(), getBoundsCheckCond(), GetConstantInt(), llvm::IRBuilderBase::getIntPtrTy(), GetRMWLibcall(), llvm::VNCoercion::getStoreValueForLoadHelper(), INITIALIZE_PASS(), llvm::DenseMapInfo< VTableSlotSummary >::isEqual(), llvm::CastInst::isNoopCast(), isWordAligned(), llvm::LibCallSimplifier::LibCallSimplifier(), llvm::AsmPrinter::lowerConstant(), llvm::ARMTargetLowering::lowerInterleavedLoad(), llvm::AArch64TargetLowering::lowerInterleavedStore(), llvm::ARMTargetLowering::lowerInterleavedStore(), llvm::IntrinsicLowering::LowerIntrinsicCall(), matchesOr(), optimizeMemCmpConstantSize(), PerformHeapAllocSRoA(), simplifyAllocaArraySize(), SimplifyCastInst(), stripAndComputeConstantOffsets(), tryToOptimizeStoreOfMallocToGlobal(), unifyBitWidth(), and llvm::PtrUseVisitor< SliceBuilder >::visitPtr().

◆ getIntPtrType() [2/2]

Type * DataLayout::getIntPtrType ( Type * Ty ) const

Returns an integer (vector of integer) type with size at least as big as that of a pointer of the given pointer (vector of pointer) type.

Definition at line 771 of file DataLayout.cpp.

References assert(), llvm::IntegerType::get(), llvm::VectorType::get(), llvm::Type::getContext(), and llvm::Type::isPtrOrPtrVectorTy().

◆ getLargestLegalIntType()

Type* llvm::DataLayout::getLargestLegalIntType ( LLVMContext & C ) const

inline

Returns the largest legal integer type, or null if none are set.

Definition at line 510 of file DataLayout.h.

References llvm::Type::getIntNTy().

◆ getLargestLegalIntTypeSizeInBits()

unsigned DataLayout::getLargestLegalIntTypeSizeInBits ( ) const

Returns the size of largest legal integer type size, or 0 if none are set.

Definition at line 788 of file DataLayout.cpp.

Referenced by canUseSizedAtomicCall(), CC_RISCV(), and despeculateCountZeros().

◆ getLinkerPrivateGlobalPrefix()

StringRef llvm::DataLayout::getLinkerPrivateGlobalPrefix ( ) const

inline

Definition at line 297 of file DataLayout.h.

Referenced by llvm::MachineFunction::getJTISymbol(), and getNameWithPrefixImpl().

◆ getManglingComponent()

const char * DataLayout::getManglingComponent ( const Triple & T )

static

Definition at line 156 of file DataLayout.cpp.

References llvm::Triple::getArch(), llvm::Triple::isOSBinFormatCOFF(), llvm::Triple::isOSBinFormatMachO(), llvm::Triple::isOSWindows(), and llvm::Triple::x86.

Referenced by computeDataLayout(), and getDataLayoutString().

◆ getMaxPointerSize()

unsigned DataLayout::getMaxPointerSize ( ) const

Returns the maximum pointer size over all address spaces.

Definition at line 660 of file DataLayout.cpp.

References llvm::max(), and P.

◆ getMaxPointerSizeInBits()

unsigned llvm::DataLayout::getMaxPointerSizeInBits ( ) const

inline

Returns the maximum pointer size over all address spaces.

Definition at line 394 of file DataLayout.h.

References getMaxPointerSize().

Referenced by getMaxPointerSize().

◆ getNonIntegralAddressSpaces()

ArrayRef<unsigned> llvm::DataLayout::getNonIntegralAddressSpaces ( ) const

inline

Return the address spaces containing non-integral pointers.

Pointers in this address space don't have a well-defined bitwise representation.

Definition at line 368 of file DataLayout.h.

Referenced by getParentPad().

◆ getPointerABIAlignment()

unsigned DataLayout::getPointerABIAlignment ( unsigned AS ) const

Layout pointer alignment.

Definition at line 633 of file DataLayout.cpp.

References assert(), and I.

Referenced by llvm::TargetLoweringObjectFileELF::emitPersonalityValue(), and llvm::MachineJumpTableInfo::getEntryAlignment().

◆ getPointerPrefAlignment()

unsigned DataLayout::getPointerPrefAlignment ( unsigned AS = 0 ) const

Return target's alignment for stack-based pointers FIXME: The defaults need to be removed once all of the backends/clients are updated.

Definition at line 642 of file DataLayout.cpp.

References assert(), and I.

Referenced by llvm::AsmPrinter::EmitSpecialLLVMGlobal(), and getOpenCLAlignment().

◆ getPointerSize()

unsigned DataLayout::getPointerSize ( unsigned AS = 0 ) const

Layout pointer size FIXME: The defaults need to be removed once all of the backends/clients are updated.

Definition at line 651 of file DataLayout.cpp.

References assert(), and I.

Referenced by addByteCountSuffix(), llvm::DwarfCompileUnit::addLocationAttribute(), canTurnIntoCOPY(), llvm::AsmPrinter::doFinalization(), llvm::AddressPool::emit(), EmitCamlGlobal(), llvm::TargetLoweringBase::emitPatchPoint(), llvm::TargetLoweringObjectFileELF::emitPersonalityValue(), llvm::TargetMachine::getAllocaPointerSize(), llvm::MachineJumpTableInfo::getEntrySize(), llvm::ExecutionEngine::getGlobalValueAtAddress(), llvm::AddressPool::getIndex(), llvm::TargetMachine::getPointerSize(), llvm::TargetMachine::getProgramPointerSize(), llvm::MSP430TargetLowering::getReturnAddressFrameIndex(), llvm::AsmPrinter::GetSizeOfEncodedValue(), llvm::CallLowering::handleAssignments(), isTargetNullPtr(), and llvm::MSP430TargetLowering::LowerRETURNADDR().

◆ getPointerSizeInBits()

unsigned llvm::DataLayout::getPointerSizeInBits ( unsigned AS = 0 ) const

inline

Layout pointer size, in bits FIXME: The defaults need to be removed once all of the backends/clients are updated.

Definition at line 389 of file DataLayout.h.

References getPointerSize().

Referenced by llvm::FunctionComparator::cmpOperations(), llvm::computeSignatureVTs(), llvm::InstructionSelector::executeMatchTable(), llvm::StackSafetyInfo::FunctionInfo::FunctionInfo(), llvm::getCallsiteCost(), GetCtorAndDtorPriority(), getMaxPointerSize(), getNoopInput(), llvm::TargetLoweringBase::getPointerMemTy(), llvm::TargetMachine::getPointerSizeInBits(), llvm::TargetLoweringBase::getPointerTy(), llvm::TargetLoweringBase::getScalarShiftAmountTy(), llvm::X86TTIImpl::getUserCost(), instrumentMaskedLoadOrStore(), llvm::isBytewiseValue(), llvm::MachinePointerInfo::isDereferenceable(), isKnownTypeIdMember(), lle_X_sprintf(), llvm::X86CallLowering::lowerReturn(), matchesOr(), llvm::TargetLowering::ParseConstraints(), pickOpcodeForVT(), unpackFromMemLoc(), verifyAddrSpace(), llvm::Interpreter::visitAShr(), llvm::WinException::WinException(), and llvm::X86CallLowering::X86CallLowering().

◆ getPointerTypeSize()

unsigned llvm::DataLayout::getPointerTypeSize ( Type * Ty ) const

inline

Definition at line 414 of file DataLayout.h.

Referenced by llvm::AsmPrinter::EmitGlobalVariable().

◆ getPointerTypeSizeInBits()

unsigned DataLayout::getPointerTypeSizeInBits ( Type * Ty ) const

Layout pointer size, in bits, based on the type.

If this function is called with a pointer type, then the type size of the pointer is returned. If this function is called with a vector of pointers, then the type size of the pointer is returned. This should only be called with a pointer or vector of pointers.

Definition at line 668 of file DataLayout.cpp.

References assert(), llvm::Type::getScalarType(), and llvm::Type::isPtrOrPtrVectorTy().

Referenced by llvm::ObjectSizeOffsetVisitor::compute(), llvm::ConstantFoldCastOperand(), ConvertDoubleToBytes(), llvm::TargetTransformInfoImplCRTPBase< AMDGPUTTIImpl >::getGEPCost(), llvm::SelectionDAG::getGlobalAddress(), llvm::TargetTransformInfoImplBase::getOperationCost(), and llvm::CastInst::isBitOrNoopPointerCastable().

◆ getPreferredAlignment()

unsigned DataLayout::getPreferredAlignment ( const GlobalVariable * GV ) const

Returns the preferred alignment of the specified global.

getPreferredAlignment - Return the preferred alignment of the specified global.

This includes an explicitly requested alignment (if the global has one).

Definition at line 834 of file DataLayout.cpp.

References llvm::GlobalObject::getAlignment(), llvm::GlobalValue::getValueType(), llvm::GlobalVariable::hasInitializer(), llvm::GlobalObject::hasSection(), and llvm::max().

Referenced by getAlignment(), llvm::AsmPrinter::getGVAlignment(), llvm::Value::getPointerAlignment(), promoteToConstantPool(), selectELFSectionForGlobal(), llvm::TargetLoweringObjectFileMachO::SelectSectionForGlobal(), and llvm::ExecutionEngine::~ExecutionEngine().

◆ getPreferredAlignmentLog()

unsigned DataLayout::getPreferredAlignmentLog ( const GlobalVariable * GV ) const

Returns the preferred alignment of the specified global, returned in log form.

getPreferredAlignmentLog - Return the preferred alignment of the specified global, returned in log form.

This includes an explicitly requested alignment (if the global has one).

Definition at line 872 of file DataLayout.cpp.

References llvm::Log2_32().

◆ getPrefTypeAlignment()

unsigned DataLayout::getPrefTypeAlignment ( Type * Ty ) const

Returns the preferred stack/global alignment for the specified type.

This is always at least as good as the ABI alignment.

Definition at line 762 of file DataLayout.cpp.

References llvm::StructLayout::getAlignment().

Referenced by llvm::SelectionDAG::CreateStackTemporary(), llvm::NVPTXAsmPrinter::doFinalization(), emitPostSt(), llvm::SelectionDAG::getConstantPool(), getLaneCopyOpcode(), getOpenCLAlignment(), llvm::Value::getPointerAlignment(), GetRMWLibcall(), HandleByValArgument(), optimizeMemCmpConstantSize(), ReplaceLoadVector(), llvm::ARMTargetLowering::ReplaceNodeResults(), scalarizeBinOpOfSplats(), and llvm::FunctionLoweringInfo::set().

◆ getPrivateGlobalPrefix()

StringRef llvm::DataLayout::getPrivateGlobalPrefix ( ) const

inline

Definition at line 317 of file DataLayout.h.

References llvm_unreachable.

Referenced by EmitHiLo(), llvm::ARMAsmPrinter::EmitInstruction(), llvm::ARMAsmPrinter::EmitMachineConstantPoolValue(), llvm::MSP430MCInstLower::GetConstantPoolIndexSymbol(), llvm::ARMAsmPrinter::GetCPISymbol(), llvm::AsmPrinter::GetCPISymbol(), llvm::PPCFunctionInfo::getGlobalEPSymbol(), llvm::TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(), llvm::MachineFunction::getJTISymbol(), llvm::AsmPrinter::GetJTSetSymbol(), llvm::MSP430MCInstLower::GetJumpTableSymbol(), llvm::PPCFunctionInfo::getLocalEPSymbol(), getNameWithPrefixImpl(), llvm::MachineFunction::getPICBaseSymbol(), llvm::PPCFunctionInfo::getPICOffsetSymbol(), GetSymbolFromOperand(), llvm::TargetLoweringObjectFile::getSymbolWithGlobalValueBase(), llvm::PPCFunctionInfo::getTOCOffsetSymbol(), LowerWRITE_REGISTER(), llvm::MipsAsmPrinter::printOperand(), and llvm::AsmPrinter::PrintSpecial().

◆ getProgramAddressSpace()

unsigned llvm::DataLayout::getProgramAddressSpace ( ) const

inline

Definition at line 283 of file DataLayout.h.

Referenced by computeAddrSpace(), llvm::Function::Create(), createGlobalFwdRef(), forEachUser(), llvm::LLParser::getContext(), llvm::Module::getOrInsertFunction(), llvm::TargetMachine::getProgramPointerSize(), maybePrintCallAddrSpace(), maybePrintComdat(), and llvm::updateIndexWPDForExports().

◆ getSmallestLegalIntType()

Type * DataLayout::getSmallestLegalIntType	(	LLVMContext &	C,
		unsigned	Width = `0`
	)		const

Returns the smallest integer type with size at least as big as Width bits.

Definition at line 781 of file DataLayout.cpp.

References llvm::Type::getIntNTy().

Referenced by getRelevantOperands().

◆ getStackAlignment()

unsigned llvm::DataLayout::getStackAlignment ( ) const

inline

Definition at line 269 of file DataLayout.h.

Referenced by CC_ARM_AAPCS_Custom_Aggregate(), finishStackBlock(), and llvm::ARMTargetLowering::getABIAlignmentForCallingConv().

◆ getStringRepresentation()

const std::string& llvm::DataLayout::getStringRepresentation ( ) const

inline

Returns the string representation of the DataLayout.

This representation is in the same format accepted by the string constructor above. This should not be used to compare two DataLayout as different string can represent the same layout.

Definition at line 241 of file DataLayout.h.

Referenced by llvm::Module::getDataLayoutStr().

◆ getStructLayout()

const StructLayout * DataLayout::getStructLayout ( StructType * Ty ) const

Returns a StructLayout object, indicating the alignment of the struct, its size, and the offsets of its fields.

Note that this information is lazily cached.

Definition at line 610 of file DataLayout.cpp.

References llvm::StructType::getNumElements(), and llvm::safe_malloc().

Referenced by llvm::GEPOperator::accumulateConstantOffset(), aliasSameBasePointerGEPs(), computeArraySize(), ComputePTXValueVTs(), llvm::computeValueLLTs(), llvm::ComputeValueVTs(), llvm::ConstantFoldLoadFromConstPtr(), llvm::ConstantFoldLoadThroughBitcast(), ConvertDoubleToBytes(), llvm::EmitGEPOffset(), emitGlobalConstantStruct(), evaluateGEPOffsetExpression(), findFuncPointers(), llvm::TargetTransformInfoImplCRTPBase< AMDGPUTTIImpl >::getGEPCost(), getMaxPointerSize(), getNaturalGEPRecursively(), getOffsetFromIndex(), getTypePartition(), isDenselyPacked(), PerformHeapAllocSRoA(), AllocaSlices::SliceBuilder::SliceBuilder(), splitGlobal(), SRAGlobal(), stripAggregateTypeWrapping(), tryToOptimizeStoreOfMallocToGlobal(), unpackLoadToAggregate(), unpackStoreToAggregate(), llvm::updateIndexWPDForExports(), and llvm::Interpreter::visitAllocaInst().

◆ getTypeAllocSize()

uint64_t llvm::DataLayout::getTypeAllocSize ( Type * Ty ) const

inline

Returns the offset in bytes between successive objects of the specified type, including alignment padding.

This is the amount that alloca reserves for this type. For example, returns 12 or 16 for x86_fp80, depending on alignment.

Definition at line 470 of file DataLayout.h.

References llvm::alignTo().

Referenced by llvm::GEPOperator::accumulateConstantOffset(), addByteCountSuffix(), llvm::LoopAccessInfo::addRuntimeChecks(), llvm::AMDGPUMachineFunction::allocateLDSGlobal(), llvm::AMDGPUTargetLowering::analyzeFormalArgumentsCompute(), llvm::analyzeStandardArguments(), branchMaxOffsets(), canReplaceGEPIdxWithZero(), CC_RISCV(), computeArraySize(), llvm::computeValueLLTs(), llvm::ComputeValueVTs(), llvm::ConstantFoldLoadFromConstPtr(), llvm::ConstantFoldLoadThroughBitcast(), ConvertDoubleToBytes(), llvm::createAMDGPUFunctionInliningPass(), dump(), llvm::AsmPrinter::EmitConstantPool(), llvm::EmitGEPOffset(), llvm::AsmPrinter::EmitGlobalConstant(), emitGlobalConstantArray(), emitGlobalConstantDataSequential(), emitGlobalConstantFP(), emitGlobalConstantImpl(), emitGlobalConstantLargeInt(), emitGlobalConstantStruct(), emitGlobalConstantVector(), llvm::AsmPrinter::emitGlobalGOTEquivs(), llvm::AMDGPUAsmPrinter::EmitGlobalVariable(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::SystemZAsmPrinter::EmitMachineConstantPoolValue(), llvm::ARMAsmPrinter::EmitMachineConstantPoolValue(), emitPostSt(), llvm::ARMAsmPrinter::EmitXXStructor(), evaluateGEPOffsetExpression(), findArgumentCopyElisionCandidates(), findFuncPointers(), getAllocaSizeInBytes(), GetCtorAndDtorPriority(), llvm::TargetTransformInfoImplCRTPBase< AMDGPUTTIImpl >::getGEPCost(), llvm::getGEPInductionOperand(), getLaneCopyOpcode(), getMaxPointerSize(), getMinVisibility(), getNaturalGEPRecursively(), getNaturalGEPWithOffset(), getOffsetFromIndex(), getOpenCLAlignment(), llvm::NVPTXTargetLowering::getPrototype(), llvm::MachineConstantPoolEntry::getSectionKind(), getTypePartition(), getUniformBase(), llvm::AMDGPUTTIImpl::getUnrollingPreferences(), hasIrregularType(), hasUndefContents(), instrumentMaskedLoadOrStore(), isCallPromotable(), llvm::RISCVELFTargetObjectFile::isConstantInSmallSection(), llvm::LanaiTargetObjectFile::isConstantInSmallSection(), llvm::MipsTargetObjectFile::IsConstantInSmallSection(), llvm::RISCVELFTargetObjectFile::isGlobalInSmallSection(), llvm::MipsTargetObjectFile::IsGlobalInSmallSection(), llvm::InductionDescriptor::isInductionPHI(), isKnownTypeIdMember(), llvm::XCoreTargetLowering::isLegalAddressingMode(), isObjectSizeLessThanOrEq(), isSafeDependenceDistance(), isSafeToEliminateVarargsCast(), IsSmallObject(), llvm::NVPTXTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), llvm::AsmPrinter::lowerConstant(), llvm::X86TargetLowering::markLibCallAttributes(), matchesOr(), mayTailCallThisCC(), moveUp(), performGlobalAddressCombine(), PerformHeapAllocSRoA(), promoteToConstantPool(), replaceFrameSize(), llvm::ARMTargetLowering::ReplaceNodeResults(), RetagMask(), scalarizeBinOpOfSplats(), llvm::FunctionLoweringInfo::set(), llvm::CallLowering::setArgFlags(), llvm::HexagonTargetObjectFile::shouldPutJumpTableInFunctionSection(), SimplifyGEPInst(), AllocaSlices::SliceBuilder::SliceBuilder(), splitRetconCoroutine(), SRAGlobal(), StackMallocSizeClass(), stripAggregateTypeWrapping(), tryToElideArgumentCopy(), tryToOptimizeStoreOfMallocToGlobal(), TypeSizeToSizeIndex(), unifyBitWidth(), unpackLoadToAggregate(), unpackStoreToAggregate(), llvm::updateIndexWPDForExports(), llvm::Interpreter::visitAllocaInst(), llvm::ObjectSizeOffsetVisitor::visitAllocaInst(), llvm::ObjectSizeOffsetEvaluator::visitAllocaInst(), llvm::ObjectSizeOffsetVisitor::visitArgument(), llvm::ObjectSizeOffsetVisitor::visitGlobalVariable(), VisitGlobalVariableForEmission(), and llvm::ExecutionEngine::~ExecutionEngine().

◆ getTypeAllocSizeInBits()

uint64_t llvm::DataLayout::getTypeAllocSizeInBits ( Type * Ty ) const

inline

Returns the offset in bits between successive objects of the specified type, including alignment padding; always a multiple of 8.

This is the amount that alloca reserves for this type. For example, returns 96 or 128 for x86_fp80, depending on alignment.

Definition at line 480 of file DataLayout.h.

References C.

Referenced by ConvertDoubleToBytes(), llvm::AllocaInst::getAllocationSizeInBits(), llvm::HexagonTargetLowering::getTgtMemIntrinsic(), hasIrregularType(), isDenselyPacked(), isRepeatedByteSequence(), llvm::NVPTXTargetLowering::LowerCall(), llvm::AsmPrinter::lowerConstant(), llvm::NVPTXTargetLowering::LowerReturn(), SRAGlobal(), TryToShrinkGlobalToBoolean(), and valueCoversEntireFragment().

◆ getTypeSizeInBits()

uint64_t llvm::DataLayout::getTypeSizeInBits ( Type * Ty ) const

inline

Size examples:

Type SizeInBits StoreSizeInBits AllocSizeInBits[*]

i1 1 8 8 i8 8 8 8 i19 19 24 32 i32 32 32 32 i100 100 104 128 i128 128 128 128 Float 32 32 32 Double 64 64 64 X86_FP80 80 80 96

[*] The alloc size depends on the alignment, and thus on the target. These values are for x86-32 linux. Returns the number of bits necessary to hold the specified type.

For example, returns 36 for i36 and 80 for x86_fp80. The type passed must have a size (Type::isSized() must return true).

Definition at line 598 of file DataLayout.h.

References llvm::Type::ArrayTyID, assert(), llvm::Type::DoubleTyID, llvm::Type::FloatTyID, llvm::Type::FP128TyID, llvm::SequentialType::getElementType(), llvm::Type::getIntegerBitWidth(), llvm::SequentialType::getNumElements(), llvm::Type::getPointerAddressSpace(), llvm::Type::getTypeID(), llvm::Type::HalfTyID, llvm::Type::IntegerTyID, llvm::Type::isSized(), llvm::Type::LabelTyID, llvm_unreachable, llvm::Type::PointerTyID, llvm::Type::PPC_FP128TyID, llvm::Type::StructTyID, llvm::Type::VectorTyID, llvm::Type::X86_FP80TyID, and llvm::Type::X86_MMXTyID.

Referenced by llvm::sroa::AllocaSliceRewriter::AllocaSliceRewriter(), llvm::VNCoercion::analyzeLoadFromClobberingLoad(), llvm::VNCoercion::analyzeLoadFromClobberingStore(), llvm::VNCoercion::analyzeLoadFromClobberingWrite(), llvm::VNCoercion::canCoerceMustAliasedValueToLoad(), canConvertValue(), llvm::FastISel::canFoldAddIntoGEP(), llvm::VNCoercion::coerceAvailableValueToLoadTypeHelper(), llvm::slpvectorizer::BoUpSLP::computeMinimumValueSizes(), computeRecurrenceType(), llvm::ConstantFoldLoadFromConstPtr(), llvm::ConstantFoldLoadThroughBitcast(), llvm::InnerLoopVectorizer::createBitOrPointerCast(), llvm::AArch64TargetLowering::emitLoadLinked(), llvm::AArch64TargetLowering::emitStoreConditional(), generateLoopLatchCheck(), llvm::getCallsiteCost(), llvm::ARMTTIImpl::getInterleavedMemoryOpCost(), llvm::RISCVTTIImpl::getIntImmCost(), llvm::getLLTForType(), getMemCmpLoad(), llvm::VNCoercion::getMemInstValueForLoadHelper(), getMemSetPatternValue(), getNaturalGEPRecursively(), getNumBytes(), llvm::AArch64TargetLowering::getNumInterleavedAccesses(), llvm::ARMTargetLowering::getNumInterleavedAccesses(), llvm::TargetTransformInfoImplBase::getOperationCost(), llvm::GCNTTIImpl::getShuffleCost(), llvm::LoopVectorizationCostModel::getSmallestAndWidestTypes(), llvm::VNCoercion::getStoreValueForLoadHelper(), llvm::ARMTargetLowering::getTgtMemIntrinsic(), getTypePartition(), llvm::HexagonTTIImpl::getUserCost(), llvm::slpvectorizer::BoUpSLP::getVectorElementSize(), llvm::GCNTTIImpl::getVectorInstrCost(), llvm::R600TTIImpl::getVectorInstrCost(), hasIrregularType(), isBitCastSemanticsPreserving(), isContiguous(), isDenselyPacked(), isIntegerWideningViable(), llvm::AArch64TargetLowering::isLegalAddressingMode(), llvm::AArch64TargetLowering::isLegalInterleavedAccessType(), llvm::ARMTargetLowering::isLegalInterleavedAccessType(), isLoadInvariantInLoop(), isSafeToTruncateWideIVType(), isSimpleEnoughValueToCommitHelper(), isVectorPromotionViable(), llvm::TargetLowering::ParseConstraints(), processDbgDeclares(), promotedOpIsNUW(), SimplifyGEPInst(), SimplifyICmpInst(), splitMergedValStore(), stripAggregateTypeWrapping(), TypeSizeToSizeIndex(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ getTypeStoreSize()

uint64_t llvm::DataLayout::getTypeStoreSize ( Type * Ty ) const

inline

Returns the maximum number of bytes that may be overwritten by storing the specified type.

For example, returns 5 for i36 and 10 for x86_fp80.

Definition at line 445 of file DataLayout.h.

Referenced by aliasSameBasePointerGEPs(), llvm::VNCoercion::analyzeLoadFromClobberingLoad(), CanShareConstantPoolEntry(), llvm::IRBuilder< TargetFolder >::CreateExtractInteger(), llvm::FastISel::createMachineMemOperandFor(), createMaskInstrs(), llvm::NVPTXAsmPrinter::doFinalization(), emitGlobalConstantFP(), llvm::Evaluator::EvaluateBlock(), extractInteger(), findArgumentCopyElisionCandidates(), llvm::FindAvailablePtrLoadStore(), llvm::StackSafetyInfo::FunctionInfo::FunctionInfo(), llvm::IRTranslator::getAnalysisUsage(), getAtomicOpAlign(), getAtomicOpSize(), getBoundsCheckCond(), llvm::getConstantDataArrayInfo(), llvm::VNCoercion::getConstantLoadValueForLoad(), llvm::MemoryLocation::getForArgument(), llvm::BasicTTIImplBase< AMDGPUTTIImpl >::getInterleavedMemoryOpCost(), llvm::X86TTIImpl::getInterleavedMemoryOpCostAVX2(), llvm::X86TTIImpl::getInterleavedMemoryOpCostAVX512(), getLaneCopyOpcode(), llvm::VNCoercion::getLoadValueForLoad(), llvm::Value::getPointerDereferenceableBytes(), llvm::X86TTIImpl::getShuffleCost(), getUniformBase(), HandleByValArgumentInit(), hasIrregularType(), INITIALIZE_PASS(), insertInteger(), llvm::isBytewiseValue(), llvm::isConsecutiveAccess(), llvm::isDereferenceableAndAlignedPointer(), isDereferenceableForAllocaSize(), isIntegerWideningViableForSlice(), llvm::SITargetLowering::isLegalAddressingMode(), llvm::X86TTIImpl::isLegalNTLoad(), llvm::TargetTransformInfoImplBase::isLegalNTLoad(), llvm::X86TTIImpl::isLegalNTStore(), llvm::TargetTransformInfoImplBase::isLegalNTStore(), isPointerValueDeadOnEntryToFunction(), isSafePHIToSpeculate(), llvm::isSafeToLoadUnconditionally(), lookupFunction(), llvm::AArch64CallLowering::lowerFormalArguments(), llvm::AMDGPUCallLowering::lowerFormalArguments(), llvm::AMDGPUCallLowering::lowerReturn(), moveUp(), llvm::promoteLoopAccessesToScalars(), llvm::AAEvaluator::run(), llvm::HexagonTargetLowering::shouldExpandAtomicCmpXchgInIR(), AllocaSlices::SliceBuilder::SliceBuilder(), TypeSizeToSizeIndex(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ getTypeStoreSizeInBits()

uint64_t llvm::DataLayout::getTypeStoreSizeInBits ( Type * Ty ) const

inline

Returns the maximum number of bits that may be overwritten by storing the specified type; always a multiple of 8.

For example, returns 40 for i36 and 80 for x86_fp80.

Definition at line 453 of file DataLayout.h.

Referenced by llvm::slpvectorizer::BoUpSLP::canMapToVector(), llvm::VNCoercion::coerceAvailableValueToLoadTypeHelper(), combineLoadToOperationType(), createOrdering(), getIntrinsicForMaskedAtomicRMWBinOp(), GlobalWasGeneratedByCompiler(), instrumentMaskedLoadOrStore(), isAtomic(), isIntegerWideningViable(), isIntegerWideningViableForSlice(), and llvm::HWAddressSanitizerPass::run().

◆ hasLinkerPrivateGlobalPrefix()

bool llvm::DataLayout::hasLinkerPrivateGlobalPrefix ( ) const

inline

Definition at line 295 of file DataLayout.h.

Referenced by llvm::AsmPrinter::EmitJumpTableInfo().

◆ hasMicrosoftFastStdCallMangling()

bool llvm::DataLayout::hasMicrosoftFastStdCallMangling ( ) const

inline

Definition at line 285 of file DataLayout.h.

Referenced by llvm::Mangler::getNameWithPrefix().

◆ init()

void DataLayout::init ( const Module * M )

Definition at line 452 of file DataLayout.cpp.

References llvm::Module::getDataLayout().

◆ isBigEndian()

bool llvm::DataLayout::isBigEndian ( ) const

inline

Definition at line 234 of file DataLayout.h.

Referenced by llvm::VNCoercion::coerceAvailableValueToLoadTypeHelper(), combineShuffleToVectorExtend(), combineTruncationShuffle(), llvm::IRBuilder< TargetFolder >::CreateExtractInteger(), createGPRPairNode(), eliminateDeadStores(), emitGlobalConstantFP(), emitGlobalConstantLargeInt(), ExpandBITCAST(), extractInteger(), foldBitcastedFPLogic(), foldVecTruncToExtElt(), getBuildPairElt(), llvm::SelectionDAG::getConstant(), getCopyFromParts(), getCopyToParts(), GetFPLibCall(), llvm::VNCoercion::getLoadValueForLoad(), getMemSetPatternValue(), getPPCf128HiElementSelector(), getShiftAmountTyForConstant(), llvm::TargetLoweringBase::hasBigEndianPartOrdering(), insertInteger(), isExtendedBUILD_VECTOR(), isTruncateOf(), isVMOVModifiedImm(), narrowExtractedVectorLoad(), numVectorEltsOrZero(), operator=(), optimizeIntegerToVectorInsertions(), PerformSTORECombine(), PerformVMOVRRDCombine(), ReplaceCMP_SWAP_128Results(), ReplaceCMP_SWAP_64Results(), llvm::TargetLowering::scalarizeVectorStore(), ShrinkLoadReplaceStoreWithStore(), simplifyShuffleOfShuffle(), SkipExtensionForVMULL(), stripTruncAndExt(), and llvm::sroa::AllocaSliceRewriter::visit().

◆ isDefault()

bool llvm::DataLayout::isDefault ( ) const

inline

Test if the DataLayout was constructed from an empty string.

Definition at line 246 of file DataLayout.h.

Referenced by llvm::orc::LLJIT::applyDataLayout(), and llvm::ExecutionEngine::getMangledName().

◆ isIllegalInteger()

bool llvm::DataLayout::isIllegalInteger ( uint64_t Width ) const

inline

Definition at line 262 of file DataLayout.h.

Referenced by llvm::SCEVExpander::getRelatedExistingExpansion().

◆ isLegalInteger()

bool llvm::DataLayout::isLegalInteger ( uint64_t Width ) const

inline

Returns true if the specified type is known to be a native integer type supported by the CPU.

For example, i64 is not native on most 32-bit CPUs and i37 is not native on any known one. This returns false if the integer width is not legal.

The width is specified in bits.

Definition at line 255 of file DataLayout.h.

Referenced by llvm::IVUsers::AddUsersImpl(), combineLoadToOperationType(), llvm::TargetTransformInfoImplBase::getOperationCost(), getRelevantOperands(), getTypePartition(), isIntegerWideningViable(), optimizeMemCmpConstantSize(), llvm::sroa::AllocaSliceRewriter::visit(), and visitIVCast().

◆ isLittleEndian()

bool llvm::DataLayout::isLittleEndian ( ) const

inline

Layout endianness...

Definition at line 233 of file DataLayout.h.

Referenced by llvm::DwarfUnit::addConstantFPValue(), llvm::DwarfUnit::addConstantValue(), addShuffleForVecExtend(), llvm::SparcTargetLowering::bitcastConstantFPToInt(), combineBVOfVecSExt(), llvm::SelectionDAG::computeKnownBits(), llvm::SelectionDAG::ComputeNumSignBits(), llvm::ConstantFoldLoadFromConstPtr(), llvm::ConstantFoldLoadThroughBitcast(), llvm::DwarfUnit::constructContainingTypeDIEs(), createMaskInstrs(), llvm::MipsAsmPrinter::EmitStartOfAsmFile(), llvm::TargetLowering::expandUnalignedLoad(), llvm::TargetLowering::expandUnalignedStore(), foldBitcastedFPLogic(), getMemsetStringVal(), llvm::TargetInstrInfo::getStackSlotRange(), llvm::VNCoercion::getStoreValueForLoadHelper(), llvm::PPC::getVSPLTImmediate(), isTruncateOf(), llvm::PPC::isVMRGEOShuffleMask(), llvm::PPC::isVMRGHShuffleMask(), llvm::PPC::isVMRGLShuffleMask(), llvm::PPC::isVPKUDUMShuffleMask(), llvm::PPC::isVPKUHUMShuffleMask(), llvm::PPC::isVPKUWUMShuffleMask(), llvm::PPC::isVSLDOIShuffleMask(), LowerF64Op(), llvm::SparcTargetLowering::LowerFormalArguments_32(), scalarizeExtractedBinop(), llvm::TargetLowering::shouldSplitFunctionArgumentsAsLittleEndian(), ShrinkLoadReplaceStoreWithStore(), llvm::TargetLowering::SimplifyDemandedVectorElts(), llvm::TargetLowering::SimplifyMultipleUseDemandedBits(), splitMergedValStore(), and llvm::Interpreter::visitAShr().

◆ isNonIntegralAddressSpace()

bool llvm::DataLayout::isNonIntegralAddressSpace ( unsigned AddrSpace ) const

inline

Definition at line 372 of file DataLayout.h.

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

Referenced by llvm::GISelKnownBits::computeKnownBitsImpl(), and llvm::LegalizerHelper::narrowScalar().

◆ isNonIntegralPointerType() [1/2]

bool llvm::DataLayout::isNonIntegralPointerType ( PointerType * PT ) const

inline

Definition at line 377 of file DataLayout.h.

References llvm::PointerType::getAddressSpace().

Referenced by llvm::VNCoercion::analyzeLoadFromClobberingLoad(), llvm::VNCoercion::analyzeLoadFromClobberingMemInst(), llvm::VNCoercion::analyzeLoadFromClobberingStore(), llvm::VNCoercion::canCoerceMustAliasedValueToLoad(), canConvertValue(), combineLoadToOperationType(), llvm::ConstantFoldLoadFromConstPtr(), isBitCastSemanticsPreserving(), llvm::CastInst::isBitOrNoopPointerCastable(), and isFuncOrArgAttr().

◆ isNonIntegralPointerType() [2/2]

bool llvm::DataLayout::isNonIntegralPointerType ( Type * Ty ) const

inline

Definition at line 381 of file DataLayout.h.

References llvm::dyn_cast().

◆ operator!=()

bool llvm::DataLayout::operator!= ( const DataLayout & Other ) const

inline

Definition at line 225 of file DataLayout.h.

References llvm::cl::init().

◆ operator=()

DataLayout& llvm::DataLayout::operator= ( const DataLayout & DL )

inline

Definition at line 207 of file DataLayout.h.

References clear(), isBigEndian(), llvm::LayoutAlignElem::operator==(), and Other.

◆ operator==()

bool DataLayout::operator== ( const DataLayout & Other ) const

Definition at line 454 of file DataLayout.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Arg::Key::Align, llvm::LayoutAlignElem::AlignType, E, llvm::LayoutAlignElem::get(), llvm::PointerAlignElem::get(), I, if(), llvm::INTEGER_ALIGN, llvm::isPowerOf2_64(), llvm::isUInt< 16 >(), llvm::lower_bound(), llvm::partition_point(), llvm::PowerOf2Ceil(), llvm::report_fatal_error(), llvm::MipsISD::Ret, llvm::LayoutAlignElem::TypeBitWidth, and llvm::VECTOR_ALIGN.

◆ reset()

void DataLayout::reset ( StringRef LayoutDescription )

Parse a data layout string (with fallback to default values).

Definition at line 179 of file DataLayout.cpp.

References clear(), and E.

Referenced by llvm::Module::setDataLayout().

◆ typeSizeEqualsStoreSize()

bool llvm::DataLayout::typeSizeEqualsStoreSize ( Type * Ty ) const

inline

Returns true if no extra padding bits are needed when storing the specified type.

For example, returns false for i19 that has a 24-bit store size.

Definition at line 461 of file DataLayout.h.

Referenced by combineLoadToOperationType(), eliminateDeadStores(), splitMergedValStore(), and llvm::sroa::AllocaSliceRewriter::visit().

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

include/llvm/IR/DataLayout.h
lib/IR/DataLayout.cpp

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ FunctionPtrAlignType

Constructor & Destructor Documentation

◆ DataLayout() [1/3]

◆ DataLayout() [2/3]

◆ DataLayout() [3/3]

◆ ~DataLayout()

Member Function Documentation

◆ doNotMangleLeadingQuestionMark()

◆ exceedsNaturalStackAlignment()

◆ fitsInLegalInteger()

◆ getABIIntegerTypeAlignment()

◆ getABITypeAlignment()

◆ getAllocaAddrSpace()

◆ getFunctionPtrAlign()

◆ getFunctionPtrAlignType()

◆ getGlobalPrefix()

◆ getIndexedOffsetInType()

◆ getIndexSize()

◆ getIndexSizeInBits()

◆ getIndexType()

◆ getIndexTypeSizeInBits()

◆ getIntPtrType() [1/2]

◆ getIntPtrType() [2/2]

◆ getLargestLegalIntType()

◆ getLargestLegalIntTypeSizeInBits()

◆ getLinkerPrivateGlobalPrefix()

◆ getManglingComponent()

◆ getMaxPointerSize()

◆ getMaxPointerSizeInBits()

◆ getNonIntegralAddressSpaces()

◆ getPointerABIAlignment()

◆ getPointerPrefAlignment()

◆ getPointerSize()

◆ getPointerSizeInBits()

◆ getPointerTypeSize()

◆ getPointerTypeSizeInBits()

◆ getPreferredAlignment()

◆ getPreferredAlignmentLog()

◆ getPrefTypeAlignment()

◆ getPrivateGlobalPrefix()

◆ getProgramAddressSpace()

◆ getSmallestLegalIntType()

◆ getStackAlignment()

◆ getStringRepresentation()

◆ getStructLayout()

◆ getTypeAllocSize()

◆ getTypeAllocSizeInBits()

◆ getTypeSizeInBits()

◆ getTypeStoreSize()

◆ getTypeStoreSizeInBits()

◆ hasLinkerPrivateGlobalPrefix()

◆ hasMicrosoftFastStdCallMangling()

◆ init()

◆ isBigEndian()

◆ isDefault()

◆ isIllegalInteger()

◆ isLegalInteger()

◆ isLittleEndian()

◆ isNonIntegralAddressSpace()

◆ isNonIntegralPointerType() [1/2]

◆ isNonIntegralPointerType() [2/2]

◆ operator!=()

◆ operator=()

◆ operator==()

◆ reset()

◆ typeSizeEqualsStoreSize()