llvm::MCResourceInfo Class Reference

#include "Target/AMDGPU/AMDGPUMCResourceInfo.h"

Public Types
enum	ResourceInfoKind {   RIK_NumVGPR , RIK_NumAGPR , RIK_NumSGPR , RIK_NumNamedBarrier ,   RIK_PrivateSegSize , RIK_UsesVCC , RIK_UsesFlatScratch , RIK_HasDynSizedStack ,   RIK_HasRecursion , RIK_HasIndirectCall }

Public Member Functions
	MCResourceInfo ()=default
void	addMaxVGPRCandidate (int32_t candidate)
void	addMaxAGPRCandidate (int32_t candidate)
void	addMaxSGPRCandidate (int32_t candidate)
void	addMaxNamedBarrierCandidate (int32_t candidate)
MCSymbol *	getSymbol (StringRef FuncName, ResourceInfoKind RIK, MCContext &OutContext, bool IsLocal)
const MCExpr *	getSymRefExpr (StringRef FuncName, ResourceInfoKind RIK, MCContext &Ctx, bool IsLocal)
void	reset ()
void	finalize (MCContext &OutContext)
MCSymbol *	getMaxVGPRSymbol (MCContext &OutContext)
MCSymbol *	getMaxAGPRSymbol (MCContext &OutContext)
MCSymbol *	getMaxSGPRSymbol (MCContext &OutContext)
MCSymbol *	getMaxNamedBarrierSymbol (MCContext &OutContext)
void	gatherResourceInfo (const MachineFunction &MF, const AMDGPUResourceUsageAnalysisWrapperPass::FunctionResourceInfo &FRI, MCContext &OutContext)
	AMDGPUResourceUsageAnalysis gathers resource usage on a per-function granularity.
const MCExpr *	createTotalNumVGPRs (const MachineFunction &MF, MCContext &Ctx)
const MCExpr *	createTotalNumSGPRs (const MachineFunction &MF, bool hasXnack, MCContext &Ctx)

Detailed Description

Definition at line 28 of file AMDGPUMCResourceInfo.h.

Member Enumeration Documentation

ResourceInfoKind

enum llvm::MCResourceInfo::ResourceInfoKind

Enumerator
RIK_NumVGPR
RIK_NumAGPR
RIK_NumSGPR
RIK_NumNamedBarrier
RIK_PrivateSegSize
RIK_UsesVCC
RIK_UsesFlatScratch
RIK_HasDynSizedStack
RIK_HasRecursion
RIK_HasIndirectCall

Definition at line 30 of file AMDGPUMCResourceInfo.h.

Constructor & Destructor Documentation

MCResourceInfo()

llvm::MCResourceInfo::MCResourceInfo ( )

default

Referenced by reset().

Member Function Documentation

addMaxAGPRCandidate()

void llvm::MCResourceInfo::addMaxAGPRCandidate ( int32_t candidate )

inline

Definition at line 74 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

addMaxNamedBarrierCandidate()

void llvm::MCResourceInfo::addMaxNamedBarrierCandidate ( int32_t candidate )

inline

Definition at line 80 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

addMaxSGPRCandidate()

void llvm::MCResourceInfo::addMaxSGPRCandidate ( int32_t candidate )

inline

Definition at line 77 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

addMaxVGPRCandidate()

void llvm::MCResourceInfo::addMaxVGPRCandidate ( int32_t candidate )

inline

Definition at line 71 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

createTotalNumSGPRs()

const MCExpr * MCResourceInfo::createTotalNumSGPRs	(	const MachineFunction &	MF,
		bool	hasXnack,
		MCContext &	Ctx )

Definition at line 400 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCBinaryExpr::createAdd(), llvm::AMDGPUMCExpr::createExtraSGPRs(), llvm::MachineFunction::getFunction(), llvm::MCSymbol::getName(), getSymRefExpr(), llvm::MachineFunction::getTarget(), llvm::GlobalValue::hasLocalLinkage(), RIK_NumSGPR, RIK_UsesFlatScratch, and RIK_UsesVCC.

createTotalNumVGPRs()

const MCExpr * MCResourceInfo::createTotalNumVGPRs	(	const MachineFunction &	MF,
		MCContext &	Ctx )

Definition at line 390 of file AMDGPUMCResourceInfo.cpp.

References llvm::AMDGPUMCExpr::createTotalNumVGPR(), llvm::MachineFunction::getFunction(), llvm::MCSymbol::getName(), getSymRefExpr(), llvm::MachineFunction::getTarget(), llvm::GlobalValue::hasLocalLinkage(), RIK_NumAGPR, and RIK_NumVGPR.

finalize()

void MCResourceInfo::finalize

(

MCContext &

OutContext

)

Definition at line 86 of file AMDGPUMCResourceInfo.cpp.

References assert().

gatherResourceInfo()

void MCResourceInfo::gatherResourceInfo	(	const MachineFunction &	MF,
		const AMDGPUResourceUsageAnalysisWrapperPass::FunctionResourceInfo &	FRI,
		MCContext &	OutContext )

AMDGPUResourceUsageAnalysis gathers resource usage on a per-function granularity.

However, some resource info has to be assigned the call transitive maximum or accumulative. For example, if A calls B and B's VGPR usage exceeds A's, A should be assigned B's VGPR usage. Furthermore, functions with indirect calls should be assigned the module level maximum.

Definition at line 251 of file AMDGPUMCResourceInfo.cpp.

References addMaxAGPRCandidate(), addMaxNamedBarrierCandidate(), addMaxSGPRCandidate(), addMaxVGPRCandidate(), llvm::AMDGPUMCExpr::AGVK_Max, llvm::AMDGPUMCExpr::AGVK_Or, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::Callees, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::CalleeSegmentSize, llvm::MCConstantExpr::create(), llvm::MCSymbolRefExpr::create(), llvm::MCBinaryExpr::createAdd(), llvm::AMDGPUMCExpr::createMax(), llvm::dbgs(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), getMaxAGPRSymbol(), getMaxNamedBarrierSymbol(), getMaxSGPRSymbol(), getMaxVGPRSymbol(), llvm::MCSymbol::getName(), getSymbol(), llvm::MachineFunction::getTarget(), llvm::MCSymbol::getVariableValue(), llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::HasDynamicallySizedStack, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::HasIndirectCall, llvm::GlobalValue::hasLocalLinkage(), llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::HasRecursion, llvm::SmallPtrSetImpl< PtrType >::insert(), llvm::AMDGPU::isEntryFunctionCC(), llvm::AMDGPUMCExpr::isSymbolUsedInExpression(), llvm::MCSymbol::isVariable(), LLVM_DEBUG, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::NumAGPR, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::NumExplicitSGPR, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::NumNamedBarrier, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::NumVGPR, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::PrivateSegmentSize, llvm::SmallVectorTemplateBase< T, bool >::push_back(), RIK_HasDynSizedStack, RIK_HasIndirectCall, RIK_HasRecursion, RIK_NumAGPR, RIK_NumNamedBarrier, RIK_NumSGPR, RIK_NumVGPR, RIK_PrivateSegSize, RIK_UsesFlatScratch, RIK_UsesVCC, llvm::MCSymbol::setVariableValue(), llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::UsesFlatScratch, and llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::UsesVCC.

getMaxAGPRSymbol()

MCSymbol * MCResourceInfo::getMaxAGPRSymbol

(

MCContext &

OutContext

)

Definition at line 96 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

getMaxNamedBarrierSymbol()

MCSymbol * MCResourceInfo::getMaxNamedBarrierSymbol

(

MCContext &

OutContext

)

Definition at line 104 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

getMaxSGPRSymbol()

MCSymbol * MCResourceInfo::getMaxSGPRSymbol

(

MCContext &

OutContext

)

Definition at line 100 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

getMaxVGPRSymbol()

MCSymbol * MCResourceInfo::getMaxVGPRSymbol

(

MCContext &

OutContext

)

Definition at line 92 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

getSymbol()

MCSymbol * MCResourceInfo::getSymbol	(	StringRef	FuncName,
		ResourceInfoKind	RIK,
		MCContext &	OutContext,
		bool	IsLocal )

Definition at line 27 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getAsmInfo(), llvm::MCContext::getOrCreateSymbol(), llvm::MCAsmInfo::getPrivateGlobalPrefix(), llvm_unreachable, RIK_HasDynSizedStack, RIK_HasIndirectCall, RIK_HasRecursion, RIK_NumAGPR, RIK_NumNamedBarrier, RIK_NumSGPR, RIK_NumVGPR, RIK_PrivateSegSize, RIK_UsesFlatScratch, and RIK_UsesVCC.

Referenced by gatherResourceInfo(), and getSymRefExpr().

getSymRefExpr()

const MCExpr * MCResourceInfo::getSymRefExpr	(	StringRef	FuncName,
		ResourceInfoKind	RIK,
		MCContext &	Ctx,
		bool	IsLocal )

Definition at line 60 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCSymbolRefExpr::create(), and getSymbol().

Referenced by createTotalNumSGPRs(), and createTotalNumVGPRs().

reset()

void MCResourceInfo::reset

(

)

Definition at line 84 of file AMDGPUMCResourceInfo.cpp.

References MCResourceInfo().

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

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