llvm::AMDGPUMachineFunction Class Reference

#include "Target/AMDGPU/AMDGPUMachineFunction.h"

Inheritance diagram for llvm::AMDGPUMachineFunction:

Public Member Functions
	AMDGPUMachineFunction (const Function &F, const AMDGPUSubtarget &ST)
uint64_t	getExplicitKernArgSize () const
Align	getMaxKernArgAlign () const
uint32_t	getLDSSize () const
uint32_t	getGDSSize () const
void	recordNumNamedBarriers (uint32_t GVAddr, unsigned BarCnt)
uint32_t	getNumNamedBarriers () const
bool	isEntryFunction () const
bool	isModuleEntryFunction () const
bool	isChainFunction () const
bool	isBottomOfStack () const
bool	hasNoSignedZerosFPMath () const
bool	isMemoryBound () const
bool	needsWaveLimiter () const
bool	hasInitWholeWave () const
void	setInitWholeWave ()
unsigned	allocateLDSGlobal (const DataLayout &DL, const GlobalVariable &GV)
unsigned	allocateLDSGlobal (const DataLayout &DL, const GlobalVariable &GV, Align Trailing)
Align	getDynLDSAlign () const
void	setDynLDSAlign (const Function &F, const GlobalVariable &GV)
void	setUsesDynamicLDS (bool DynLDS)
bool	isDynamicLDSUsed () const
Public Member Functions inherited from llvm::MachineFunctionInfo
virtual	~MachineFunctionInfo ()
virtual MachineFunctionInfo *	clone (BumpPtrAllocator &Allocator, MachineFunction &DestMF, const DenseMap< MachineBasicBlock *, MachineBasicBlock * > &Src2DstMBB) const
	Make a functionally equivalent copy of this MachineFunctionInfo in MF.

Static Public Member Functions
static std::optional< uint32_t >	getLDSKernelIdMetadata (const Function &F)
static std::optional< uint32_t >	getLDSAbsoluteAddress (const GlobalValue &GV)
Static Public Member Functions inherited from llvm::MachineFunctionInfo
template<typename FuncInfoTy , typename SubtargetTy = TargetSubtargetInfo>
static FuncInfoTy *	create (BumpPtrAllocator &Allocator, const Function &F, const SubtargetTy *STI)
	Factory function: default behavior is to call new using the supplied allocator.
template<typename Ty >
static Ty *	create (BumpPtrAllocator &Allocator, const Ty &MFI)

Protected Attributes
uint64_t	ExplicitKernArgSize = 0
Align	MaxKernArgAlign
uint32_t	LDSSize = 0
	Number of bytes in the LDS that are being used.
uint32_t	GDSSize = 0
uint32_t	StaticLDSSize = 0
	Number of bytes in the LDS allocated statically.
uint32_t	StaticGDSSize = 0
Align	DynLDSAlign
	Align for dynamic shared memory if any.
bool	UsesDynamicLDS = false
uint32_t	NumNamedBarriers = 0
bool	IsEntryFunction = false
bool	IsModuleEntryFunction = false
bool	IsChainFunction = false
bool	NoSignedZerosFPMath = false
bool	MemoryBound = false
bool	WaveLimiter = false
bool	HasInitWholeWave = false

Detailed Description

Definition at line 24 of file AMDGPUMachineFunction.h.

Constructor & Destructor Documentation

AMDGPUMachineFunction()

AMDGPUMachineFunction::AMDGPUMachineFunction	(	const Function &	F,
		const AMDGPUSubtarget &	ST
	)

Definition at line 42 of file AMDGPUMachineFunction.cpp.

References llvm::CallingConv::AMDGPU_KERNEL, llvm::StringRef::consumeInteger(), llvm::StringRef::empty(), ExplicitKernArgSize, F, GDSSize, llvm::AMDGPU::getIntegerPairAttribute(), getKernelDynLDSGlobalFromFunction(), llvm::Attribute::getValueAsBool(), llvm::Attribute::getValueAsString(), hasLDSKernelArgument(), llvm::Attribute::isStringAttribute(), LDSSize, MaxKernArgAlign, MemoryBound, NoSignedZerosFPMath, llvm::CallingConv::SPIR_KERNEL, StaticGDSSize, StaticLDSSize, UsesDynamicLDS, and WaveLimiter.

Member Function Documentation

allocateLDSGlobal() [1/2]

unsigned llvm::AMDGPUMachineFunction::allocateLDSGlobal ( const DataLayout &  DL, const GlobalVariable &  GV  )

inline

Definition at line 125 of file AMDGPUMachineFunction.h.

References allocateLDSGlobal(), DL, and DynLDSAlign.

Referenced by allocateLDSGlobal(), llvm::AMDGPULegalizerInfo::legalizeGlobalValue(), and llvm::AMDGPUTargetLowering::LowerGlobalAddress().

allocateLDSGlobal() [2/2]

unsigned AMDGPUMachineFunction::allocateLDSGlobal	(	const DataLayout &	DL,
		const GlobalVariable &	GV,
		Align	Trailing
	)

TODO: We should sort these to minimize wasted space due to alignment padding. Currently the padding is decided by the first encountered use during lowering.

Definition at line 93 of file AMDGPUMachineFunction.cpp.

References llvm::alignTo(), assert(), DL, GDSSize, llvm::GlobalValue::getAddressSpace(), llvm::GlobalVariable::getAlign(), getLDSAbsoluteAddress(), llvm::GlobalValue::getValueType(), isModuleEntryFunction(), llvm::AMDGPU::isNamedBarrier(), LDSSize, llvm_unreachable, llvm::AMDGPUAS::LOCAL_ADDRESS, llvm::Offset, recordNumNamedBarriers(), llvm::AMDGPUAS::REGION_ADDRESS, llvm::report_fatal_error(), StaticGDSSize, and StaticLDSSize.

getDynLDSAlign()

Align llvm::AMDGPUMachineFunction::getDynLDSAlign ( ) const

inline

Definition at line 135 of file AMDGPUMachineFunction.h.

References DynLDSAlign.

getExplicitKernArgSize()

uint64_t llvm::AMDGPUMachineFunction::getExplicitKernArgSize ( ) const

inline

Definition at line 77 of file AMDGPUMachineFunction.h.

References ExplicitKernArgSize.

Referenced by llvm::AMDGPUTargetLowering::getImplicitParameterOffset().

getGDSSize()

uint32_t llvm::AMDGPUMachineFunction::getGDSSize ( ) const

inline

Definition at line 87 of file AMDGPUMachineFunction.h.

References GDSSize.

getLDSAbsoluteAddress()

std::optional< uint32_t > AMDGPUMachineFunction::getLDSAbsoluteAddress ( const GlobalValue &  GV )

static

Definition at line 191 of file AMDGPUMachineFunction.cpp.

References llvm::GlobalValue::getAbsoluteSymbolRange(), llvm::GlobalValue::getAddressSpace(), and llvm::AMDGPUAS::LOCAL_ADDRESS.

Referenced by allocateLDSGlobal(), llvm::AMDGPUAsmPrinter::lowerConstant(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), and setDynLDSAlign().

getLDSKernelIdMetadata()

std::optional< uint32_t > AMDGPUMachineFunction::getLDSKernelIdMetadata ( const Function &  F )

static

Definition at line 175 of file AMDGPUMachineFunction.cpp.

References F, llvm::MDNode::getNumOperands(), and llvm::MDNode::getOperand().

Referenced by llvm::AMDGPULegalizerInfo::getLDSKernelId(), llvm::SITargetLowering::passSpecialInputs(), and llvm::AMDGPUCallLowering::passSpecialInputs().

getLDSSize()

uint32_t llvm::AMDGPUMachineFunction::getLDSSize ( ) const

inline

Definition at line 83 of file AMDGPUMachineFunction.h.

References LDSSize.

Referenced by llvm::SITargetLowering::EmitInstrWithCustomInserter(), and llvm::SIMachineFunctionInfo::SIMachineFunctionInfo().

getMaxKernArgAlign()

Align llvm::AMDGPUMachineFunction::getMaxKernArgAlign ( ) const

inline

Definition at line 81 of file AMDGPUMachineFunction.h.

References MaxKernArgAlign.

getNumNamedBarriers()

uint32_t llvm::AMDGPUMachineFunction::getNumNamedBarriers ( ) const

inline

Definition at line 95 of file AMDGPUMachineFunction.h.

References NumNamedBarriers.

Referenced by llvm::AMDGPUResourceUsageAnalysisImpl::analyzeResourceUsage().

hasInitWholeWave()

bool llvm::AMDGPUMachineFunction::hasInitWholeWave ( ) const

inline

Definition at line 122 of file AMDGPUMachineFunction.h.

References HasInitWholeWave.

Referenced by llvm::SIMachineFunctionInfo::allocateWWMSpill().

hasNoSignedZerosFPMath()

bool llvm::AMDGPUMachineFunction::hasNoSignedZerosFPMath ( ) const

inline

Definition at line 110 of file AMDGPUMachineFunction.h.

References NoSignedZerosFPMath.

isBottomOfStack()

bool llvm::AMDGPUMachineFunction::isBottomOfStack ( ) const

inline

Definition at line 106 of file AMDGPUMachineFunction.h.

References isChainFunction(), and isEntryFunction().

Referenced by llvm::SIRegisterInfo::buildSpillLoadStore(), llvm::SIRegisterInfo::eliminateFrameIndex(), and llvm::SIRegisterInfo::getFrameRegister().

isChainFunction()

bool llvm::AMDGPUMachineFunction::isChainFunction ( ) const

inline

Definition at line 103 of file AMDGPUMachineFunction.h.

References IsChainFunction.

Referenced by llvm::SIMachineFunctionInfo::allocateWWMSpill(), llvm::SIFrameLowering::determineCalleeSaves(), llvm::SIFrameLowering::emitEpilogue(), llvm::SIFrameLowering::emitPrologue(), llvm::SIFrameLowering::hasFPImpl(), isBottomOfStack(), and llvm::SIFrameLowering::requiresStackPointerReference().

isDynamicLDSUsed()

bool AMDGPUMachineFunction::isDynamicLDSUsed

(

)

const

Definition at line 241 of file AMDGPUMachineFunction.cpp.

References UsesDynamicLDS.

Referenced by llvm::AMDGPU::HSAMD::MetadataStreamerMsgPackV5::emitHiddenKernelArgs().

isEntryFunction()

bool llvm::AMDGPUMachineFunction::isEntryFunction ( ) const

inline

Definition at line 97 of file AMDGPUMachineFunction.h.

References IsEntryFunction.

Referenced by llvm::SIMachineFunctionInfo::allocateWWMSpill(), llvm::SIFrameLowering::determineCalleeSaves(), llvm::SIFrameLowering::determineCalleeSavesSGPR(), llvm::SIFrameLowering::emitEntryFunctionPrologue(), llvm::SIFrameLowering::emitEpilogue(), llvm::AMDGPUAsmPrinter::emitFunctionBodyEnd(), llvm::AMDGPUAsmPrinter::emitFunctionBodyStart(), llvm::AMDGPUAsmPrinter::emitFunctionEntryLabel(), llvm::SIFrameLowering::emitPrologue(), llvm::SIFrameLowering::hasFPImpl(), isBottomOfStack(), llvm::AMDGPULegalizerInfo::legalizeImplicitArgPtr(), llvm::AMDGPULegalizerInfo::legalizeLDSKernelId(), llvm::SIFrameLowering::requiresStackPointerReference(), llvm::AMDGPUAsmPrinter::runOnMachineFunction(), and llvm::SIMachineFunctionInfo::SIMachineFunctionInfo().

isMemoryBound()

bool llvm::AMDGPUMachineFunction::isMemoryBound ( ) const

inline

Definition at line 114 of file AMDGPUMachineFunction.h.

References MemoryBound.

Referenced by llvm::SIMachineFunctionInfo::getMinAllowedOccupancy().

isModuleEntryFunction()

bool llvm::AMDGPUMachineFunction::isModuleEntryFunction ( ) const

inline

Definition at line 101 of file AMDGPUMachineFunction.h.

References IsModuleEntryFunction.

Referenced by allocateLDSGlobal(), llvm::AMDGPULegalizerInfo::legalizeGlobalValue(), llvm::AMDGPUTargetLowering::LowerGlobalAddress(), and llvm::AMDGPUAsmPrinter::runOnMachineFunction().

needsWaveLimiter()

bool llvm::AMDGPUMachineFunction::needsWaveLimiter ( ) const

inline

Definition at line 118 of file AMDGPUMachineFunction.h.

References WaveLimiter.

Referenced by llvm::SIMachineFunctionInfo::getMinAllowedOccupancy(), and llvm::AMDGPUAsmPrinter::runOnMachineFunction().

recordNumNamedBarriers()

void llvm::AMDGPUMachineFunction::recordNumNamedBarriers ( uint32_t  GVAddr, unsigned  BarCnt  )

inline

Definition at line 91 of file AMDGPUMachineFunction.h.

References NumNamedBarriers.

Referenced by allocateLDSGlobal(), and llvm::AMDGPUTargetLowering::LowerGlobalAddress().

setDynLDSAlign()

void AMDGPUMachineFunction::setDynLDSAlign	(	const Function &	F,
		const GlobalVariable &	GV
	)

Definition at line 209 of file AMDGPUMachineFunction.cpp.

References llvm::alignTo(), assert(), DL, DynLDSAlign, F, llvm::GlobalVariable::getAlign(), getKernelDynLDSGlobalFromFunction(), getLDSAbsoluteAddress(), llvm::GlobalValue::getValueType(), LDSSize, llvm::Offset, llvm::report_fatal_error(), and StaticLDSSize.

Referenced by llvm::AMDGPULegalizerInfo::legalizeGlobalValue().

setInitWholeWave()

void llvm::AMDGPUMachineFunction::setInitWholeWave ( )

inline

Definition at line 123 of file AMDGPUMachineFunction.h.

References HasInitWholeWave.

Referenced by llvm::GCNTargetMachine::parseMachineFunctionInfo().

setUsesDynamicLDS()

void AMDGPUMachineFunction::setUsesDynamicLDS

(

bool

DynLDS

)

Definition at line 237 of file AMDGPUMachineFunction.cpp.

References UsesDynamicLDS.

Member Data Documentation

DynLDSAlign

Align llvm::AMDGPUMachineFunction::DynLDSAlign

protected

Align for dynamic shared memory if any.

Dynamic shared memory is allocated directly after the static one, i.e., LDSSize. Need to pad LDSSize to ensure that dynamic one is aligned accordingly. The maximal alignment is updated during IR translation or lowering stages.

Definition at line 47 of file AMDGPUMachineFunction.h.

Referenced by allocateLDSGlobal(), getDynLDSAlign(), and setDynLDSAlign().

ExplicitKernArgSize

uint64_t llvm::AMDGPUMachineFunction::ExplicitKernArgSize = 0

protected

Definition at line 30 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), and getExplicitKernArgSize().

GDSSize

uint32_t llvm::AMDGPUMachineFunction::GDSSize = 0

protected

Definition at line 35 of file AMDGPUMachineFunction.h.

Referenced by allocateLDSGlobal(), AMDGPUMachineFunction(), and getGDSSize().

HasInitWholeWave

bool llvm::AMDGPUMachineFunction::HasInitWholeWave = false

protected

Definition at line 72 of file AMDGPUMachineFunction.h.

Referenced by hasInitWholeWave(), and setInitWholeWave().

IsChainFunction

bool llvm::AMDGPUMachineFunction::IsChainFunction = false

protected

Definition at line 62 of file AMDGPUMachineFunction.h.

Referenced by isChainFunction().

IsEntryFunction

bool llvm::AMDGPUMachineFunction::IsEntryFunction = false

protected

Definition at line 56 of file AMDGPUMachineFunction.h.

Referenced by isEntryFunction().

IsModuleEntryFunction

bool llvm::AMDGPUMachineFunction::IsModuleEntryFunction = false

protected

Definition at line 59 of file AMDGPUMachineFunction.h.

Referenced by isModuleEntryFunction().

LDSSize

uint32_t llvm::AMDGPUMachineFunction::LDSSize = 0

protected

Number of bytes in the LDS that are being used.

Definition at line 34 of file AMDGPUMachineFunction.h.

Referenced by allocateLDSGlobal(), AMDGPUMachineFunction(), getLDSSize(), and setDynLDSAlign().

MaxKernArgAlign

Align llvm::AMDGPUMachineFunction::MaxKernArgAlign

protected

Definition at line 31 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), getMaxKernArgAlign(), and llvm::SIMachineFunctionInfo::SIMachineFunctionInfo().

MemoryBound

bool llvm::AMDGPUMachineFunction::MemoryBound = false

protected

Definition at line 67 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), and isMemoryBound().

NoSignedZerosFPMath

bool llvm::AMDGPUMachineFunction::NoSignedZerosFPMath = false

protected

Definition at line 64 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), and hasNoSignedZerosFPMath().

NumNamedBarriers

uint32_t llvm::AMDGPUMachineFunction::NumNamedBarriers = 0

protected

Definition at line 52 of file AMDGPUMachineFunction.h.

Referenced by getNumNamedBarriers(), and recordNumNamedBarriers().

StaticGDSSize

uint32_t llvm::AMDGPUMachineFunction::StaticGDSSize = 0

protected

Definition at line 40 of file AMDGPUMachineFunction.h.

Referenced by allocateLDSGlobal(), and AMDGPUMachineFunction().

StaticLDSSize

uint32_t llvm::AMDGPUMachineFunction::StaticLDSSize = 0

protected

Number of bytes in the LDS allocated statically.

This field is only used in the instruction selector and not part of the machine function info.

Definition at line 39 of file AMDGPUMachineFunction.h.

Referenced by allocateLDSGlobal(), AMDGPUMachineFunction(), and setDynLDSAlign().

UsesDynamicLDS

bool llvm::AMDGPUMachineFunction::UsesDynamicLDS = false

protected

Definition at line 50 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), isDynamicLDSUsed(), and setUsesDynamicLDS().

WaveLimiter

bool llvm::AMDGPUMachineFunction::WaveLimiter = false

protected

Definition at line 70 of file AMDGPUMachineFunction.h.

Referenced by AMDGPUMachineFunction(), and needsWaveLimiter().

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

• lib/Target/AMDGPU/AMDGPUMachineFunction.h
• lib/Target/AMDGPU/AMDGPUMachineFunction.cpp