llvm::SmallSet< T, N, C > Class Template Reference

SmallSet - This maintains a set of unique values, optimizing for the case when the set is small (less than N). More...

#include "llvm/ADT/SmallSet.h"

Inheritance diagram for llvm::SmallSet< T, N, C >:

Public Types
using	size_type = size_t
using	const_iterator = SmallSetIterator< T, N, C >

Public Member Functions
	SmallSet ()=default
bool	empty () const
size_type	size () const
size_type	count (const T &V) const
	count - Return 1 if the element is in the set, 0 otherwise.
std::pair< const_iterator, bool >	insert (const T &V)
	insert - Insert an element into the set if it isn't already there.
template<typename IterT >
void	insert (IterT I, IterT E)
bool	erase (const T &V)
void	clear ()
const_iterator	begin () const
const_iterator	end () const
bool	contains (const T &V) const
	Check if the SmallSet contains the given element.

Detailed Description

template<typename T, unsigned N, typename C = std::less<T>>
class llvm::SmallSet< T, N, C >

SmallSet - This maintains a set of unique values, optimizing for the case when the set is small (less than N).

In this case, the set can be maintained with no mallocs. If the set gets large, we expand to using an std::set to maintain reasonable lookup times.

Definition at line 135 of file SmallSet.h.

Member Typedef Documentation

const_iterator

template<typename T , unsigned N, typename C = std::less<T>>

using llvm::SmallSet< T, N, C >::const_iterator = SmallSetIterator<T, N, C>

Definition at line 153 of file SmallSet.h.

size_type

template<typename T , unsigned N, typename C = std::less<T>>

using llvm::SmallSet< T, N, C >::size_type = size_t

Definition at line 152 of file SmallSet.h.

Constructor & Destructor Documentation

SmallSet()

template<typename T , unsigned N, typename C = std::less<T>>

llvm::SmallSet< T, N, C >::SmallSet ( )

default

Member Function Documentation

begin()

template<typename T , unsigned N, typename C = std::less<T>>

const_iterator llvm::SmallSet< T, N, C >::begin ( ) const

inline

Definition at line 221 of file SmallSet.h.

References llvm::Vector.

Referenced by INITIALIZE_PASS(), and interpretValues().

clear()

template<typename T , unsigned N, typename C = std::less<T>>

void llvm::SmallSet< T, N, C >::clear ( )

inline

Definition at line 216 of file SmallSet.h.

References llvm::Vector.

Referenced by llvm::HexagonSubtarget::adjustSchedDependency(), llvm::HexagonHazardRecognizer::AdvanceCycle(), llvm::SPIRV::RequirementHandler::clear(), findConsecutiveLoad(), ReduceLoopStrength(), and llvm::HexagonHazardRecognizer::Reset().

contains()

template<typename T , unsigned N, typename C = std::less<T>>

bool llvm::SmallSet< T, N, C >::contains ( const T &  V ) const

inline

Check if the SmallSet contains the given element.

Definition at line 234 of file SmallSet.h.

References llvm::Vector.

Referenced by llvm::SPIRVSubtarget::canUseExtension(), llvm::SPIRVSubtarget::canUseExtInstSet(), clobberRegEntries(), and llvm::SMSchedule::normalizeNonPipelinedInstructions().

count()

template<typename T , unsigned N, typename C = std::less<T>>

size_type llvm::SmallSet< T, N, C >::count ( const T &  V ) const

inline

count - Return 1 if the element is in the set, 0 otherwise.

Definition at line 164 of file SmallSet.h.

References llvm::Vector.

Referenced by addHints(), llvm::DomTreeUpdater::applyUpdatesPermissive(), llvm::ARMBaseInstrInfo::canCauseFpMLxStall(), llvm::SMSchedule::computeUnpipelineableNodes(), llvm::ARMBaseInstrInfo::copyPhysReg(), llvm::Instruction::dropUnknownNonDebugMetadata(), emitSelectPseudo(), llvm::AMDGPURegisterBankInfo::executeInWaterfallLoop(), llvm::finalizeBundle(), findConsecutiveLoad(), llvm::rdf::Liveness::getAllReachingDefs(), llvm::RISCVRegisterInfo::getRegAllocationHints(), llvm::SystemZRegisterInfo::getRegAllocationHints(), llvm::X86RegisterInfo::getRegAllocationHints(), llvm::slpvectorizer::BoUpSLP::LookAheadHeuristics::getScoreAtLevelRec(), getUniqueCaseValue(), hoistAndMergeSGPRInits(), IsSafeAndProfitableToMove(), lowerStatepointMetaArgs(), MaySpeculate(), llvm::mustTriggerUB(), ProcessSourceNode(), programUndefinedIfUndefOrPoison(), llvm::LoopVectorizationCostModel::selectVectorizationFactor(), llvm::MachineBasicBlock::SplitCriticalEdge(), llvm::object::TapiFile::TapiFile(), and verifyCTRBranch().

empty()

template<typename T , unsigned N, typename C = std::less<T>>

bool llvm::SmallSet< T, N, C >::empty ( ) const

inline

Definition at line 157 of file SmallSet.h.

References llvm::Vector.

Referenced by llvm::AMDGPURegisterBankInfo::collectWaterfallOperands(), INITIALIZE_PASS(), and IsValueFullyAvailableInBlock().

end()

template<typename T , unsigned N, typename C = std::less<T>>

const_iterator llvm::SmallSet< T, N, C >::end ( ) const

inline

Definition at line 227 of file SmallSet.h.

References llvm::Vector.

Referenced by interpretValues().

erase()

template<typename T , unsigned N, typename C = std::less<T>>

bool llvm::SmallSet< T, N, C >::erase ( const T &  V )

inline

Definition at line 205 of file SmallSet.h.

References E, I, and llvm::Vector.

Referenced by llvm::finalizeBundle(), INITIALIZE_PASS(), and IsValueFullyAvailableInBlock().

insert() [1/2]

template<typename T , unsigned N, typename C = std::less<T>>

std::pair< const_iterator, bool > llvm::SmallSet< T, N, C >::insert ( const T &  V )

inline

insert - Insert an element into the set if it isn't already there.

Returns a pair. The first value of it is an iterator to the inserted element or the existing element in the set. The second value is true if the element is inserted (it was not in the set before).

Definition at line 177 of file SmallSet.h.

References I, N, and llvm::Vector.

Referenced by addArgumentAttrs(), addArgumentReturnedAttrs(), llvm::SPIRV::RequirementHandler::addExtension(), llvm::SPIRV::RequirementHandler::addExtensions(), addHints(), addMemoryAttrs(), addNoAliasAttrs(), addNonNullAttrs(), addNoRecurseAttrs(), addNoReturnAttrs(), addWillReturn(), AntiDepEdges(), llvm::AMDGPURegisterBankInfo::applyMappingSBufferLoad(), llvm::OpenMPIRBuilder::applySimd(), llvm::DomTreeUpdater::applyUpdatesPermissive(), llvm::ARMBaseInstrInfo::ARMBaseInstrInfo(), AssignProtectedObjSet(), llvm::CallGraphDOTInfo::CallGraphDOTInfo(), llvm::changeToUnreachable(), CheckForLiveRegDef(), CheckForLiveRegDefMasked(), clobberRegEntries(), llvm::JumpThreadingPass::cloneInstructions(), llvm::AMDGPURegisterBankInfo::collectWaterfallOperands(), combineShuffleOfScalars(), llvm::SMSchedule::computeUnpipelineableNodes(), llvm::ConstantFoldTerminator(), llvm::ARMBaseInstrInfo::copyPhysReg(), deriveAttrsInPostOrder(), despeculateCountZeros(), llvm::Instruction::dropUnknownNonDebugMetadata(), llvm::HexagonRegisterInfo::eliminateFrameIndex(), llvm::HexagonHazardRecognizer::EmitInstruction(), llvm::WebAssemblyAsmPrinter::EmitProducerInfo(), emitSelectPseudo(), llvm::finalizeBundle(), findConsecutiveLoad(), llvm::DWARFDie::findRecursively(), llvm::R600InstrInfo::fitsConstReadLimitations(), llvm::rdf::Liveness::getAllReachingDefs(), llvm::RISCVRegisterInfo::getRegAllocationHints(), llvm::SystemZRegisterInfo::getRegAllocationHints(), llvm::X86RegisterInfo::getRegAllocationHints(), llvm::TargetRegisterInfo::getRegAllocationHints(), llvm::slpvectorizer::BoUpSLP::LookAheadHeuristics::getScoreAtLevelRec(), getUniqueCaseValue(), llvm::MachineInstr::getUsedDebugRegs(), handleNormalInst(), llvm::RISCVInstrInfo::hasAllNBitUsers(), hoistAndMergeSGPRInits(), INITIALIZE_PASS(), llvm::SmallSet< T, N, C >::insert(), llvm::MemorySSAUpdater::insertDef(), interpretValues(), llvm::AMDGPU::isClobberedInFunction(), isLoadCombineCandidate(), IsSafeAndProfitableToMove(), IsValueFullyAvailableInBlock(), liesBetween(), llvm::SelectionDAGBuilder::LowerStatepoint(), lowerStatepointMetaArgs(), mustExecuteUBIfPoisonOnPathTo(), llvm::LoopVectorizationPlanner::plan(), llvm::PointerMayBeCaptured(), llvm::WebAssemblyInstPrinter::printInst(), ProcessSourceNode(), programUndefinedIfUndefOrPoison(), llvm::SwiftErrorValueTracking::propagateVRegs(), llvm::MachineDominatorTree::recordSplitCriticalEdge(), replaceAllUsesWith(), llvm::MachineBasicBlock::SplitCriticalEdge(), TryToSinkInstruction(), unique_unsorted(), verifyCTRBranch(), and llvm::VirtRegAuxInfo::weightCalcHelper().

insert() [2/2]

template<typename T , unsigned N, typename C = std::less<T>>

template<typename IterT >

void llvm::SmallSet< T, N, C >::insert ( IterT  I, IterT  E  )

inline

Definition at line 200 of file SmallSet.h.

References E, I, and llvm::SmallSet< T, N, C >::insert().

size()

template<typename T , unsigned N, typename C = std::less<T>>

size_type llvm::SmallSet< T, N, C >::size ( ) const

inline

Definition at line 159 of file SmallSet.h.

References llvm::Vector.

Referenced by llvm::changeToUnreachable(), llvm::ConstantFoldTerminator(), llvm::HexagonRegisterInfo::eliminateFrameIndex(), llvm::R600InstrInfo::fitsConstReadLimitations(), IsSafeAndProfitableToMove(), llvm::PointerMayBeCaptured(), and llvm::LoopVectorizationCostModel::selectVectorizationFactor().

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

• include/llvm/ADT/SmallSet.h