This struct is a compact representation of a valid (non-zero power of two) alignment. More...

#include "llvm/Support/Alignment.h"

Public Member Functions
constexpr	Align ()=default
	Default is byte-aligned. More...

constexpr	Align (const Align &Other)=default
	Do not perform checks in case of copy/move construct/assign, because the checks have been performed when building `Other`. More...

constexpr	Align (Align &&Other)=default

Align &	operator= (const Align &Other)=default

Align &	operator= (Align &&Other)=default

	Align (uint64_t Value)

uint64_t	value () const
	This is a hole in the type system and should not be abused. More...

	LLVM_ATTRIBUTE_DEPRECATED (constexpr static const Align None(), "Use Align() or Align(1) instead")
	Returns a default constructed Align which corresponds to no alignment. More...

constexpr	Align (LogValue CA)
	Constexpr constructor from LogValue type. More...

Static Public Member Functions
template<size_t kValue>
constexpr static LogValue	Constant ()
	Allow constructions of constexpr Align. More...

template<typename T >
constexpr static LogValue	Of ()
	Allow constructions of constexpr Align from types. More...

Friends
struct	MaybeAlign
	The log2 of the required alignment. More...

unsigned	Log2 (Align)
	Returns the log2 of the alignment. More...

bool	operator== (Align Lhs, Align Rhs)
	Comparisons operators between Align. More...

bool	operator!= (Align Lhs, Align Rhs)

bool	operator<= (Align Lhs, Align Rhs)

bool	operator>= (Align Lhs, Align Rhs)

bool	operator< (Align Lhs, Align Rhs)

bool	operator> (Align Lhs, Align Rhs)

unsigned	encode (struct MaybeAlign A)
	Returns a representation of the alignment that encodes undefined as 0. More...

struct MaybeAlign	decodeMaybeAlign (unsigned Value)
	Dual operation of the encode function above. More...

Detailed Description

This struct is a compact representation of a valid (non-zero power of two) alignment.

It is suitable for use as static global constants.

Definition at line 39 of file Alignment.h.

Constructor & Destructor Documentation

◆ Align() [1/5]

constexpr llvm::Align::Align ( )

constexprdefault

Default is byte-aligned.

Referenced by LLVM_ATTRIBUTE_DEPRECATED().

◆ Align() [2/5]

constexpr llvm::Align::Align ( const Align & Other )

constexprdefault

Do not perform checks in case of copy/move construct/assign, because the checks have been performed when building Other.

◆ Align() [3/5]

constexpr llvm::Align::Align ( Align && Other )

constexprdefault

◆ Align() [4/5]

llvm::Align::Align ( uint64_t Value )

inlineexplicit

Definition at line 76 of file Alignment.h.

References assert(), llvm::isPowerOf2_64(), and llvm::Log2_64().

◆ Align() [5/5]

constexpr llvm::Align::Align ( LogValue CA )

inlineconstexpr

Constexpr constructor from LogValue type.

Definition at line 109 of file Alignment.h.

Member Function Documentation

◆ Constant()

template<size_t kValue>

constexpr static LogValue llvm::Align::Constant ( )

inlinestaticconstexpr

Allow constructions of constexpr Align.

Definition at line 98 of file Alignment.h.

◆ LLVM_ATTRIBUTE_DEPRECATED()

llvm::Align::LLVM_ATTRIBUTE_DEPRECATED	(	constexpr static const Align	None(),
		"Use Align() or Align(1) instead"
	)

inline

Returns a default constructed Align which corresponds to no alignment.

It was decided to deprecate Align::None because it's too close to llvm::None which can be used to initialize MaybeAlign. MaybeAlign = llvm::None means unspecified alignment, Align = Align::None() means alignment of one byte.

Definition at line 92 of file Alignment.h.

References Align().

◆ Of()

template<typename T >

constexpr static LogValue llvm::Align::Of ( )

inlinestaticconstexpr

Allow constructions of constexpr Align from types.

Compile time equivalent to Align(alignof(T)).

Definition at line 104 of file Alignment.h.

◆ operator=() [1/2]

Align& llvm::Align::operator= ( Align && Other )

default

◆ operator=() [2/2]

Align& llvm::Align::operator= ( const Align & Other )

default

◆ value()

uint64_t llvm::Align::value ( ) const

inline

This is a hole in the type system and should not be abused.

Needed to interact with C for instance.

Definition at line 85 of file Alignment.h.

Referenced by llvm::alignAddr(), llvm::BumpPtrAllocatorImpl< MallocAllocator, 65536 >::Allocate(), llvm::HexagonFrameLowering::assignCalleeSavedSpillSlots(), llvm::MachineIRBuilder::buildDynStackAlloc(), CC_AIX(), CC_ARM_AAPCS_Custom_Aggregate(), llvm::MIRPrinter::convert(), llvm::IRBuilderBase::CreateMaskedGather(), llvm::IRBuilderBase::CreateMaskedLoad(), llvm::IRBuilderBase::CreateMaskedScatter(), llvm::IRBuilderBase::CreateMaskedStore(), llvm::createMemCpyLoopKnownSize(), llvm::createMemCpyLoopUnknownSize(), llvm::IRBuilderBase::CreateMemSet(), llvm::ARMFrameLowering::determineCalleeSaves(), emitAligningInstructions(), llvm::AsmPrinter::emitAlignment(), llvm::AMDGPUTargetAsmStreamer::emitAMDGPULDS(), llvm::AMDGPUTargetELFStreamer::emitAMDGPULDS(), llvm::SIFrameLowering::emitEpilogue(), llvm::HexagonDAGToDAGISel::emitFunctionEntryCode(), llvm::AsmPrinter::emitGlobalVariable(), llvm::MipsSEFrameLowering::emitPrologue(), llvm::SparcFrameLowering::emitPrologue(), llvm::XCoreFrameLowering::emitPrologue(), llvm::SIFrameLowering::emitPrologue(), llvm::ARMFrameLowering::emitPrologue(), llvm::WebAssemblyFrameLowering::emitPrologue(), llvm::BPFSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::X86SelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemcpy(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemmove(), llvm::SystemZSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::ARMSelectionDAGInfo::EmitTargetCodeForMemset(), llvm::HexagonEvaluator::evaluate(), llvm::DataLayout::getABITypeAlignment(), llvm::GlobalObject::getAlignment(), llvm::AllocaInst::getAlignment(), llvm::MCSection::getAlignment(), llvm::LoadInst::getAlignment(), llvm::StoreInst::getAlignment(), llvm::MemSDNode::getAlignment(), llvm::PPCTargetLowering::getByValTypeAlignment(), llvm::X86TargetLowering::getByValTypeAlignment(), getELFSectionNameForGlobal(), llvm::MachineJumpTableInfo::getEntryAlignment(), llvm::SelectionDAG::getEVTAlignment(), llvm::RISCVFrameLowering::getFirstSPAdjustAmount(), getFnStackAlignment(), llvm::M68kFrameLowering::getFrameIndexReference(), llvm::AMDGPUMachineFunction::getMaxKernArgAlign(), llvm::HexagonTTIImpl::getMemoryOpCost(), llvm::ARMBaseInstrInfo::getOutliningType(), llvm::SITargetLowering::getPrefLoopAlignment(), llvm::DataLayout::getPrefTypeAlignment(), llvm::TargetFrameLowering::getStackAlignment(), llvm::ARMTTIImpl::instCombineIntrinsic(), isAgainstBoundary(), isAligned(), llvm::isAligned(), llvm::isDereferenceableAndAlignedInLoop(), isDereferenceableAndAlignedPointer(), llvm::MemOp::isDstAligned(), isGPRShadowAligned(), llvm::MemOp::isSrcAligned(), llvm::AMDGPULegalizerInfo::legalizeLoad(), llvm::TargetFrameLowering::LLVM_ATTRIBUTE_DEPRECATED(), llvm::DataLayout::LLVM_ATTRIBUTE_DEPRECATED(), llvm::InterleaveGroup< InstTy >::LLVM_ATTRIBUTE_DEPRECATED(), llvm::MemSDNode::LLVM_ATTRIBUTE_DEPRECATED(), LowerAsSplatVectorLoad(), llvm::NVPTXTargetLowering::LowerCall(), lowerLoadF128(), lowerStoreF128(), llvm::CombinerHelper::matchLoadOrCombine(), llvm::operator!=(), llvm::operator*(), llvm::operator/(), llvm::operator<(), llvm::operator<=(), llvm::operator==(), llvm::operator>(), llvm::operator>=(), llvm::yaml::ScalarTraits< Align >::output(), PerformExtractFpToIntStores(), PerformSplittingToNarrowingStores(), llvm::PPCRegisterInfo::prepareDynamicAlloca(), llvm::MachineMemOperand::print(), llvm::MachineBasicBlock::printName(), llvm::promoteLoopAccessesToScalars(), llvm::TargetLoweringObjectFileXCOFF::SelectSectionForGlobal(), llvm::AMDGPU::splitMUBUFOffset(), tryToShorten(), and llvm::UnknownPadding().

Friends And Related Function Documentation

◆ decodeMaybeAlign

struct MaybeAlign decodeMaybeAlign ( unsigned Value )

friend

Dual operation of the encode function above.

Definition at line 245 of file Alignment.h.

◆ encode

unsigned encode ( struct MaybeAlign A )

friend

Returns a representation of the alignment that encodes undefined as 0.

Definition at line 242 of file Alignment.h.

◆ Log2

unsigned Log2 ( Align A )

friend

Returns the log2 of the alignment.

Definition at line 217 of file Alignment.h.

◆ MaybeAlign

friend struct MaybeAlign

friend

The log2 of the required alignment.

ShiftValue is less than 64 by construction.

Definition at line 44 of file Alignment.h.

◆ operator!=

bool operator!=	(	Align	Lhs,
		Align	Rhs
	)

friend

Definition at line 295 of file Alignment.h.

◆ operator<

bool operator<	(	Align	Lhs,
		Align	Rhs
	)

friend

Definition at line 304 of file Alignment.h.

◆ operator<=

bool operator<=	(	Align	Lhs,
		Align	Rhs
	)

friend

Definition at line 298 of file Alignment.h.

◆ operator==

bool operator==	(	Align	Lhs,
		Align	Rhs
	)

friend

Comparisons operators between Align.

Definition at line 292 of file Alignment.h.

◆ operator>

bool operator>	(	Align	Lhs,
		Align	Rhs
	)

friend

Definition at line 307 of file Alignment.h.

◆ operator>=

bool operator>=	(	Align	Lhs,
		Align	Rhs
	)

friend

Definition at line 301 of file Alignment.h.

The documentation for this struct was generated from the following file:

include/llvm/Support/Alignment.h

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Align() [1/5]

◆ Align() [2/5]

◆ Align() [3/5]

◆ Align() [4/5]

◆ Align() [5/5]

Member Function Documentation

◆ Constant()

◆ LLVM_ATTRIBUTE_DEPRECATED()

◆ Of()

◆ operator=() [1/2]

◆ operator=() [2/2]

◆ value()

Friends And Related Function Documentation

◆ decodeMaybeAlign

◆ encode

◆ Log2

◆ MaybeAlign

◆ operator!=

◆ operator<

◆ operator<=

◆ operator==

◆ operator>

◆ operator>=