llvm::MCResourceInfo Class Reference

#include "Target/AMDGPU/AMDGPUMCResourceInfo.h"

Public Types
enum	ResourceInfoKind {   RIK_NumVGPR , RIK_NumAGPR , RIK_NumSGPR , 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)
MCSymbol *	getSymbol (StringRef FuncName, ResourceInfoKind RIK, MCContext &OutContext)
const MCExpr *	getSymRefExpr (StringRef FuncName, ResourceInfoKind RIK, MCContext &Ctx)
void	reset ()
void	finalize (MCContext &OutContext)
MCSymbol *	getMaxVGPRSymbol (MCContext &OutContext)
MCSymbol *	getMaxAGPRSymbol (MCContext &OutContext)
MCSymbol *	getMaxSGPRSymbol (MCContext &OutContext)
void	gatherResourceInfo (const MachineFunction &MF, const AMDGPUResourceUsageAnalysis::SIFunctionResourceInfo &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_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 66 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

addMaxSGPRCandidate()

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

inline

Definition at line 69 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

addMaxVGPRCandidate()

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

inline

Definition at line 63 of file AMDGPUMCResourceInfo.h.

Referenced by gatherResourceInfo().

createTotalNumSGPRs()

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

Definition at line 263 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by llvm::AMDGPUAsmPrinter::runOnMachineFunction().

createTotalNumVGPRs()

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

Definition at line 254 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by llvm::AMDGPUAsmPrinter::runOnMachineFunction().

finalize()

void MCResourceInfo::finalize

(

MCContext &

OutContext

)

Definition at line 76 of file AMDGPUMCResourceInfo.cpp.

References assert().

Referenced by llvm::AMDGPUAsmPrinter::doFinalization().

gatherResourceInfo()

void MCResourceInfo::gatherResourceInfo	(	const MachineFunction &	MF,
		const AMDGPUResourceUsageAnalysis::SIFunctionResourceInfo &	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 150 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by llvm::AMDGPUAsmPrinter::runOnMachineFunction().

getMaxAGPRSymbol()

MCSymbol * MCResourceInfo::getMaxAGPRSymbol

(

MCContext &

OutContext

)

Definition at line 86 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by llvm::AMDGPUAsmPrinter::doFinalization(), and gatherResourceInfo().

getMaxSGPRSymbol()

MCSymbol * MCResourceInfo::getMaxSGPRSymbol

(

MCContext &

OutContext

)

Definition at line 90 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by llvm::AMDGPUAsmPrinter::doFinalization(), and gatherResourceInfo().

getMaxVGPRSymbol()

MCSymbol * MCResourceInfo::getMaxVGPRSymbol

(

MCContext &

OutContext

)

Definition at line 82 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by llvm::AMDGPUAsmPrinter::doFinalization(), and gatherResourceInfo().

getSymbol()

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

Definition at line 24 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by gatherResourceInfo(), getSymRefExpr(), and llvm::AMDGPUAsmPrinter::runOnMachineFunction().

getSymRefExpr()

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

Definition at line 52 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by createTotalNumSGPRs(), and createTotalNumVGPRs().

reset()

void MCResourceInfo::reset

(

)

Definition at line 74 of file AMDGPUMCResourceInfo.cpp.

References MCResourceInfo().

Referenced by llvm::AMDGPUAsmPrinter::doFinalization().

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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