LLVM 23.0.0git
Public Types | Public Member Functions | List of all members
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)
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)
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 391 of file AMDGPUMCResourceInfo.cpp.

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

◆ createTotalNumVGPRs()

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

Definition at line 382 of file AMDGPUMCResourceInfo.cpp.

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

◆ finalize()

void MCResourceInfo::finalize ( MCContext & OutContext)

Definition at line 85 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 248 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::TargetMachine::getSymbol(), llvm::MachineFunction::getTarget(), llvm::MCSymbol::getVariableValue(), llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::HasDynamicallySizedStack, llvm::AMDGPUResourceUsageAnalysisImpl::SIFunctionResourceInfo::HasIndirectCall, 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 95 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

◆ getMaxNamedBarrierSymbol()

MCSymbol * MCResourceInfo::getMaxNamedBarrierSymbol ( MCContext & OutContext)

Definition at line 103 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

◆ getMaxSGPRSymbol()

MCSymbol * MCResourceInfo::getMaxSGPRSymbol ( MCContext & OutContext)

Definition at line 99 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

◆ getMaxVGPRSymbol()

MCSymbol * MCResourceInfo::getMaxVGPRSymbol ( MCContext & OutContext)

Definition at line 91 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getOrCreateSymbol().

Referenced by gatherResourceInfo().

◆ getSymbol()

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

Definition at line 27 of file AMDGPUMCResourceInfo.cpp.

References llvm::MCContext::getAsmInfo(), llvm::MCAsmInfo::getInternalSymbolPrefix(), llvm::MCContext::getOrCreateSymbol(), 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 )

Definition at line 59 of file AMDGPUMCResourceInfo.cpp.

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

Referenced by createTotalNumSGPRs(), and createTotalNumVGPRs().

◆ reset()

void MCResourceInfo::reset ( )

Definition at line 83 of file AMDGPUMCResourceInfo.cpp.

References MCResourceInfo().

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