#include "llvm/CodeGen/SlotIndexes.h"

Inheritance diagram for llvm::SlotIndexes:

Collaboration diagram for llvm::SlotIndexes:

[legend]

Public Types
using	MBBIndexIterator = SmallVectorImpl< IdxMBBPair >::const_iterator
	Iterator over the idx2MBBMap (sorted pairs of slot index of basic block begin and basic block) More...

Public Member Functions
	SlotIndexes ()

	~SlotIndexes () override

void	getAnalysisUsage (AnalysisUsage &au) const override
	getAnalysisUsage - Subclasses that override getAnalysisUsage must call this. More...

void	releaseMemory () override
	releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed. More...

bool	runOnMachineFunction (MachineFunction &fn) override
	runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis. More...

void	dump () const
	Dump the indexes. More...

void	renumberIndexes ()
	Renumber the index list, providing space for new instructions. More...

void	repairIndexesInRange (MachineBasicBlock *MBB, MachineBasicBlock::iterator Begin, MachineBasicBlock::iterator End)
	Repair indexes after adding and removing instructions. More...

SlotIndex	getZeroIndex ()
	Returns the zero index for this analysis. More...

SlotIndex	getLastIndex ()
	Returns the base index of the last slot in this analysis. More...

bool	hasIndex (const MachineInstr &instr) const
	Returns true if the given machine instr is mapped to an index, otherwise returns false. More...

SlotIndex	getInstructionIndex (const MachineInstr &MI) const
	Returns the base index for the given instruction. More...

MachineInstr *	getInstructionFromIndex (SlotIndex index) const
	Returns the instruction for the given index, or null if the given index has no instruction associated with it. More...

SlotIndex	getNextNonNullIndex (SlotIndex Index)
	Returns the next non-null index, if one exists. More...

SlotIndex	getIndexBefore (const MachineInstr &MI) const
	getIndexBefore - Returns the index of the last indexed instruction before MI, or the start index of its basic block. More...

SlotIndex	getIndexAfter (const MachineInstr &MI) const
	getIndexAfter - Returns the index of the first indexed instruction after MI, or the end index of its basic block. More...

const std::pair< SlotIndex, SlotIndex > &	getMBBRange (unsigned Num) const
	Return the (start,end) range of the given basic block number. More...

const std::pair< SlotIndex, SlotIndex > &	getMBBRange (const MachineBasicBlock *MBB) const
	Return the (start,end) range of the given basic block. More...

SlotIndex	getMBBStartIdx (unsigned Num) const
	Returns the first index in the given basic block number. More...

SlotIndex	getMBBStartIdx (const MachineBasicBlock *mbb) const
	Returns the first index in the given basic block. More...

SlotIndex	getMBBEndIdx (unsigned Num) const
	Returns the last index in the given basic block number. More...

SlotIndex	getMBBEndIdx (const MachineBasicBlock *mbb) const
	Returns the last index in the given basic block. More...

MBBIndexIterator	advanceMBBIndex (MBBIndexIterator I, SlotIndex To) const
	Move iterator to the next IdxMBBPair where the SlotIndex is greater or equal to `To`. More...

MBBIndexIterator	findMBBIndex (SlotIndex Idx) const
	Get an iterator pointing to the IdxMBBPair with the biggest SlotIndex that is greater or equal to `Idx`. More...

MBBIndexIterator	MBBIndexBegin () const
	Returns an iterator for the begin of the idx2MBBMap. More...

MBBIndexIterator	MBBIndexEnd () const
	Return an iterator for the end of the idx2MBBMap. More...

MachineBasicBlock *	getMBBFromIndex (SlotIndex index) const
	Returns the basic block which the given index falls in. More...

MachineBasicBlock *	getMBBCoveringRange (SlotIndex start, SlotIndex end) const
	Returns the MBB covering the given range, or null if the range covers more than one basic block. More...

SlotIndex	insertMachineInstrInMaps (MachineInstr &MI, bool Late=false)
	Insert the given machine instruction into the mapping. More...

void	removeMachineInstrFromMaps (MachineInstr &MI)
	Removes machine instruction (bundle) `MI` from the mapping. More...

void	removeSingleMachineInstrFromMaps (MachineInstr &MI)
	Removes a single machine instruction `MI` from the mapping. More...

SlotIndex	replaceMachineInstrInMaps (MachineInstr &MI, MachineInstr &NewMI)
	ReplaceMachineInstrInMaps - Replacing a machine instr with a new one in maps used by register allocator. More...

void	insertMBBInMaps (MachineBasicBlock *mbb)
	Add the given MachineBasicBlock into the maps. More...

void	eraseIndex (SlotIndex index)
	Free the resources that were required to maintain a SlotIndex. More...

Public Member Functions inherited from llvm::MachineFunctionPass
bool	doInitialization (Module &) override
	doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. More...

Public Member Functions inherited from llvm::FunctionPass
	FunctionPass (char &pid)

Pass *	createPrinterPass (raw_ostream &OS, const std::string &Banner) const override
	createPrinterPass - Get a function printer pass. More...

void	assignPassManager (PMStack &PMS, PassManagerType T) override
	Find appropriate Function Pass Manager or Call Graph Pass Manager in the PM Stack and add self into that manager. More...

PassManagerType	getPotentialPassManagerType () const override
	Return what kind of Pass Manager can manage this pass. More...

Public Member Functions inherited from llvm::Pass
	Pass (PassKind K, char &pid)

	Pass (const Pass &)=delete

Pass &	operator= (const Pass &)=delete

virtual	~Pass ()

PassKind	getPassKind () const

virtual StringRef	getPassName () const
	getPassName - Return a nice clean name for a pass. More...

AnalysisID	getPassID () const
	getPassID - Return the PassID number that corresponds to this pass. More...

virtual bool	doFinalization (Module &)
	doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. More...

virtual void	print (raw_ostream &OS, const Module *M) const
	print - Print out the internal state of the pass. More...

void	dump () const

virtual void	preparePassManager (PMStack &)
	Check if available pass managers are suitable for this pass or not. More...

void	setResolver (AnalysisResolver *AR)

AnalysisResolver *	getResolver () const

virtual void *	getAdjustedAnalysisPointer (AnalysisID ID)
	getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More...

virtual ImmutablePass *	getAsImmutablePass ()

virtual PMDataManager *	getAsPMDataManager ()

virtual void	verifyAnalysis () const
	verifyAnalysis() - This member can be implemented by a analysis pass to check state of analysis information. More...

virtual void	dumpPassStructure (unsigned Offset=0)

template<typename AnalysisType >
AnalysisType *	getAnalysisIfAvailable () const
	getAnalysisIfAvailable<AnalysisType>() - Subclasses use this function to get analysis information that might be around, for example to update it. More...

bool	mustPreserveAnalysisID (char &AID) const
	mustPreserveAnalysisID - This method serves the same function as getAnalysisIfAvailable, but works if you just have an AnalysisID. More...

template<typename AnalysisType >
AnalysisType &	getAnalysis () const
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...

template<typename AnalysisType >
AnalysisType &	getAnalysis (Function &F)
	getAnalysis<AnalysisType>() - This function is used by subclasses to get to the analysis information that they claim to use by overriding the getAnalysisUsage function. More...

template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI) const

template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI, Function &F)

Static Public Attributes
static char	ID = 0

Additional Inherited Members
Static Public Member Functions inherited from llvm::Pass
static const PassInfo *	lookupPassInfo (const void *TI)

static const PassInfo *	lookupPassInfo (StringRef Arg)

static Pass *	createPass (AnalysisID ID)

Protected Member Functions inherited from llvm::MachineFunctionPass
	MachineFunctionPass (char &ID)

virtual MachineFunctionProperties	getRequiredProperties () const

virtual MachineFunctionProperties	getSetProperties () const

virtual MachineFunctionProperties	getClearedProperties () const

Protected Member Functions inherited from llvm::FunctionPass
bool	skipFunction (const Function &F) const
	Optional passes call this function to check whether the pass should be skipped. More...

Detailed Description

SlotIndexes pass.

This pass assigns indexes to each instruction.

Definition at line 331 of file SlotIndexes.h.

Member Typedef Documentation

◆ MBBIndexIterator

using llvm::SlotIndexes::MBBIndexIterator = SmallVectorImpl<IdxMBBPair>::const_iterator

Iterator over the idx2MBBMap (sorted pairs of slot index of basic block begin and basic block)

Definition at line 514 of file SlotIndexes.h.

Constructor & Destructor Documentation

◆ SlotIndexes()

llvm::SlotIndexes::SlotIndexes ( )

inline

Definition at line 371 of file SlotIndexes.h.

References llvm::PassRegistry::getPassRegistry(), and llvm::initializeSlotIndexesPass().

◆ ~SlotIndexes()

llvm::SlotIndexes::~SlotIndexes ( )

inlineoverride

Definition at line 375 of file SlotIndexes.h.

References llvm::iplist_impl< IntrusiveListT, TraitsT >::clearAndLeakNodesUnsafely(), and llvm::dump().

Member Function Documentation

◆ advanceMBBIndex()

MBBIndexIterator llvm::SlotIndexes::advanceMBBIndex	(	MBBIndexIterator	I,
		SlotIndex	To
	)		const

inline

Move iterator to the next IdxMBBPair where the SlotIndex is greater or equal to To.

Definition at line 518 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::end(), and llvm::lower_bound().

◆ dump()

LLVM_DUMP_METHOD void SlotIndexes::dump ( ) const

Dump the indexes.

Definition at line 254 of file SlotIndexes.cpp.

References llvm::dbgs().

◆ eraseIndex()

void llvm::SlotIndexes::eraseIndex ( SlotIndex index )

inline

Free the resources that were required to maintain a SlotIndex.

Once an index is no longer needed (for instance because the instruction at that index has been moved), the resources required to maintain the index can be relinquished to reduce memory use and improve renumbering performance. Any remaining SlotIndex objects that point to the same index are left 'dangling' (much the same as a dangling pointer to a freed object) and should not be accessed, except to destruct them.

Like dangling pointers, access to dangling SlotIndexes can cause painful-to-track-down bugs, especially if the memory for the index previously pointed to has been re-used. To detect dangling SlotIndex bugs, build with EXPENSIVE_CHECKS=1. This will cause "erased" indexes to be retained in a graveyard instead of being freed. Operations on indexes in the graveyard will trigger an assertion.

Definition at line 701 of file SlotIndexes.h.

References entry, llvm::iplist_impl< IntrusiveListT, TraitsT >::erase(), llvm::iplist_impl< IntrusiveListT, TraitsT >::push_back(), and llvm::iplist_impl< IntrusiveListT, TraitsT >::remove().

◆ findMBBIndex()

MBBIndexIterator llvm::SlotIndexes::findMBBIndex ( SlotIndex Idx ) const

inline

Get an iterator pointing to the IdxMBBPair with the biggest SlotIndex that is greater or equal to Idx.

Definition at line 524 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin().

◆ getAnalysisUsage()

void SlotIndexes::getAnalysisUsage ( AnalysisUsage & AU ) const

overridevirtual

getAnalysisUsage - Subclasses that override getAnalysisUsage must call this.

For MachineFunctionPasses, calling AU.preservesCFG() indicates that the pass does not modify the MachineBasicBlock CFG.

Reimplemented from llvm::MachineFunctionPass.

Definition at line 28 of file SlotIndexes.cpp.

References llvm::MachineFunctionPass::getAnalysisUsage().

◆ getIndexAfter()

SlotIndex llvm::SlotIndexes::getIndexAfter ( const MachineInstr & MI ) const

inline

getIndexAfter - Returns the index of the first indexed instruction after MI, or the end index of its basic block.

MI is not required to have an index.

Definition at line 466 of file SlotIndexes.h.

References assert(), E, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::MachineBasicBlock::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::MachineInstr::getParent(), I, and MI.

◆ getIndexBefore()

SlotIndex llvm::SlotIndexes::getIndexBefore ( const MachineInstr & MI ) const

inline

getIndexBefore - Returns the index of the last indexed instruction before MI, or the start index of its basic block.

MI is not required to have an index.

Definition at line 449 of file SlotIndexes.h.

References assert(), B, llvm::MachineBasicBlock::begin(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::MachineInstr::getParent(), I, and MI.

◆ getInstructionFromIndex()

MachineInstr* llvm::SlotIndexes::getInstructionFromIndex ( SlotIndex index ) const

inline

Returns the instruction for the given index, or null if the given index has no instruction associated with it.

Definition at line 430 of file SlotIndexes.h.

References llvm::IndexListEntry::getInstr(), and llvm::SlotIndex::isValid().

Referenced by llvm::LiveIntervals::getInstructionFromIndex(), getNumAllocatableRegsForConstraints(), llvm::LiveRange::overlaps(), llvm::HexagonRegisterInfo::shouldCoalesce(), and llvm::LiveIntervals::HMEditor::updateAllRanges().

◆ getInstructionIndex()

SlotIndex llvm::SlotIndexes::getInstructionIndex ( const MachineInstr & MI ) const

inline

Returns the base index for the given instruction.

Definition at line 414 of file SlotIndexes.h.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::getBundleEnd(), llvm::getBundleStart(), llvm::ilist_node_impl< OptionsT >::getIterator(), and llvm::skipDebugInstructionsForward().

Referenced by llvm::LiveInterval::computeSubRangeUndefs(), createDeadDef(), llvm::LiveRangeCalc::createDeadDefs(), llvm::SystemZInstrInfo::foldMemoryOperandImpl(), llvm::LiveIntervals::getInstructionIndex(), getStartOrEndSlot(), matchPair(), llvm::LiveIntervals::print(), llvm::MachineBasicBlock::print(), llvm::LiveIntervals::HMEditor::updateAllRanges(), and llvm::MachineFunction::verify().

◆ getLastIndex()

SlotIndex llvm::SlotIndexes::getLastIndex ( )

inline

Returns the base index of the last slot in this analysis.

Definition at line 403 of file SlotIndexes.h.

Referenced by llvm::createGreedyRegisterAllocator().

◆ getMBBCoveringRange()

MachineBasicBlock* llvm::SlotIndexes::getMBBCoveringRange	(	SlotIndex	start,
		SlotIndex	end
	)		const

inline

Returns the MBB covering the given range, or null if the range covers more than one basic block.

Definition at line 557 of file SlotIndexes.h.

References assert().

◆ getMBBEndIdx() [1/2]

SlotIndex llvm::SlotIndexes::getMBBEndIdx ( unsigned Num ) const

inline

Returns the last index in the given basic block number.

Definition at line 503 of file SlotIndexes.h.

Referenced by llvm::LiveRangeCalc::createDeadDefs(), createSegmentsForValues(), llvm::LiveIntervals::getMBBEndIdx(), getStartOrEndSlot(), llvm::LiveIntervals::hasPHIKill(), matchPair(), llvm::LiveIntervals::pruneValue(), subRangeLiveAt(), and llvm::MachineFunction::verify().

◆ getMBBEndIdx() [2/2]

SlotIndex llvm::SlotIndexes::getMBBEndIdx ( const MachineBasicBlock * mbb ) const

inline

Returns the last index in the given basic block.

Definition at line 508 of file SlotIndexes.h.

◆ getMBBFromIndex()

MachineBasicBlock* llvm::SlotIndexes::getMBBFromIndex ( SlotIndex index ) const

inline

Returns the basic block which the given index falls in.

Definition at line 539 of file SlotIndexes.h.

References assert(), llvm::SmallVectorBase::empty(), I, and MI.

Referenced by createSegmentsForValues(), llvm::LiveRangeCalc::extend(), llvm::LiveIntervals::getMBBFromIndex(), llvm::LiveRangeCalc::isJointlyDominated(), llvm::LiveIntervals::pruneValue(), subRangeLiveAt(), and llvm::LiveIntervals::HMEditor::updateAllRanges().

◆ getMBBRange() [1/2]

const std::pair<SlotIndex, SlotIndex>& llvm::SlotIndexes::getMBBRange ( unsigned Num ) const

inline

Return the (start,end) range of the given basic block number.

Definition at line 482 of file SlotIndexes.h.

Referenced by llvm::LiveIntervals::pruneValue().

◆ getMBBRange() [2/2]

const std::pair<SlotIndex, SlotIndex>& llvm::SlotIndexes::getMBBRange ( const MachineBasicBlock * MBB ) const

inline

Return the (start,end) range of the given basic block.

Definition at line 488 of file SlotIndexes.h.

References llvm::MachineBasicBlock::getNumber().

◆ getMBBStartIdx() [1/2]

SlotIndex llvm::SlotIndexes::getMBBStartIdx ( unsigned Num ) const

inline

Returns the first index in the given basic block number.

Definition at line 493 of file SlotIndexes.h.

Referenced by createSegmentsForValues(), llvm::LiveRangeCalc::extend(), llvm::LiveIntervals::getMBBStartIdx(), getStartOrEndSlot(), matchPair(), llvm::LiveIntervals::print(), llvm::MachineBasicBlock::print(), llvm::GCNScheduleDAGMILive::schedule(), and llvm::MachineFunction::verify().

◆ getMBBStartIdx() [2/2]

SlotIndex llvm::SlotIndexes::getMBBStartIdx ( const MachineBasicBlock * mbb ) const

inline

Returns the first index in the given basic block.

Definition at line 498 of file SlotIndexes.h.

◆ getNextNonNullIndex()

SlotIndex llvm::SlotIndexes::getNextNonNullIndex ( SlotIndex Index )

inline

Returns the next non-null index, if one exists.

Otherwise returns getLastIndex().

Definition at line 436 of file SlotIndexes.h.

References E, llvm::ilist_node_impl< OptionsT >::getIterator(), and I.

Referenced by llvm::LiveRange::isZeroLength(), and llvm::LiveIntervals::HMEditor::updateAllRanges().

◆ getZeroIndex()

SlotIndex llvm::SlotIndexes::getZeroIndex ( )

inline

Returns the zero index for this analysis.

Definition at line 397 of file SlotIndexes.h.

References assert().

Referenced by llvm::createGreedyRegisterAllocator(), and getStartOrEndSlot().

◆ hasIndex()

bool llvm::SlotIndexes::hasIndex ( const MachineInstr & instr ) const

inline

Returns true if the given machine instr is mapped to an index, otherwise returns false.

Definition at line 409 of file SlotIndexes.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::count().

Referenced by llvm::LiveIntervals::isNotInMIMap(), matchPair(), llvm::MachineBasicBlock::print(), and llvm::MachineFunction::verify().

◆ insertMachineInstrInMaps()

SlotIndex llvm::SlotIndexes::insertMachineInstrInMaps	(	MachineInstr &	MI,
		bool	Late = `false`
	)

inline

Insert the given machine instruction into the mapping.

Returns the assigned index. If Late is set and there are null indexes between mi's neighboring instructions, create the new index after the null indexes instead of before them.

Definition at line 583 of file SlotIndexes.h.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::MachineInstr::getParent(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert(), llvm::iplist_impl< IntrusiveListT, TraitsT >::insert(), llvm::MachineInstr::isDebugInstr(), llvm::MachineInstr::isInsideBundle(), and MI.

Referenced by llvm::SplitEditor::dump(), llvm::LiveIntervals::InsertMachineInstrInMaps(), llvm::LiveIntervals::InsertMachineInstrRangeInMaps(), and llvm::MachinePipeliner::runOnMachineFunction().

◆ insertMBBInMaps()

void llvm::SlotIndexes::insertMBBInMaps ( MachineBasicBlock * mbb )

inline

Add the given MachineBasicBlock into the maps.

Definition at line 651 of file SlotIndexes.h.

References assert(), llvm::MachineFunction::end(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::MachineBasicBlock::getNumber(), llvm::MachineBasicBlock::getParent(), llvm::iplist_impl< IntrusiveListT, TraitsT >::insert(), llvm::iplist_impl< IntrusiveListT, TraitsT >::insertAfter(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::SmallVectorTemplateBase< T >::push_back(), llvm::SmallVectorBase::size(), and llvm::sort().

Referenced by llvm::LiveIntervals::insertMBBInMaps().

◆ MBBIndexBegin()

MBBIndexIterator llvm::SlotIndexes::MBBIndexBegin ( ) const

inline

Returns an iterator for the begin of the idx2MBBMap.

Definition at line 529 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin().

Referenced by llvm::MachineFunction::verify().

◆ MBBIndexEnd()

MBBIndexIterator llvm::SlotIndexes::MBBIndexEnd ( ) const

inline

Return an iterator for the end of the idx2MBBMap.

Definition at line 534 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::end().

Referenced by llvm::MachineFunction::verify().

◆ releaseMemory()

void SlotIndexes::releaseMemory ( )

overridevirtual

releaseMemory() - This member can be implemented by a pass if it wants to be able to release its memory when it is no longer needed.

The default behavior of passes is to hold onto memory for the entire duration of their lifetime (which is the entire compile time). For pipelined passes, this is not a big deal because that memory gets recycled every time the pass is invoked on another program unit. For IP passes, it is more important to free memory when it is unused.

Optionally implement this function to release pass memory when it is no longer used.

Reimplemented from llvm::Pass.

Definition at line 33 of file SlotIndexes.cpp.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::clear(), llvm::iplist_impl< IntrusiveListT, TraitsT >::clear(), llvm::SmallVectorImpl< T >::clear(), and llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold >::Reset().

◆ removeMachineInstrFromMaps()

void SlotIndexes::removeMachineInstrFromMaps ( MachineInstr & MI )

Removes machine instruction (bundle) MI from the mapping.

This should be called before MachineInstr::eraseFromParent() is used to remove a whole bundle or an unbundled instruction.

Definition at line 106 of file SlotIndexes.cpp.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::IndexListEntry::getInstr(), llvm::MachineInstr::isBundledWithPred(), and llvm::IndexListEntry::setInstr().

Referenced by llvm::LiveIntervals::RemoveMachineInstrFromMaps().

◆ removeSingleMachineInstrFromMaps()

void SlotIndexes::removeSingleMachineInstrFromMaps ( MachineInstr & MI )

Removes a single machine instruction MI from the mapping.

This should be called before MachineInstr::eraseFromBundle() is used to remove a single instruction (out of a bundle).

Definition at line 121 of file SlotIndexes.cpp.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), llvm::IndexListEntry::getInstr(), llvm::ilist_node_impl< OptionsT >::getIterator(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert(), llvm::MachineInstr::isBundledWithPred(), llvm::MachineInstr::isBundledWithSucc(), and llvm::IndexListEntry::setInstr().

◆ renumberIndexes()

void SlotIndexes::renumberIndexes ( )

Renumber the index list, providing space for new instructions.

Definition at line 148 of file SlotIndexes.cpp.

References llvm::dbgs(), E, I, llvm::SlotIndex::InstrDist, LLVM_DEBUG, and Space.

◆ repairIndexesInRange()

void SlotIndexes::repairIndexesInRange	(	MachineBasicBlock *	MBB,
		MachineBasicBlock::iterator	Begin,
		MachineBasicBlock::iterator	End
	)

Repair indexes after adding and removing instructions.

Definition at line 183 of file SlotIndexes.cpp.

◆ replaceMachineInstrInMaps()

SlotIndex llvm::SlotIndexes::replaceMachineInstrInMaps	(	MachineInstr &	MI,
		MachineInstr &	NewMI
	)

inline

ReplaceMachineInstrInMaps - Replacing a machine instr with a new one in maps used by register allocator.

Returns: the index where the new instruction was inserted.

Definition at line 636 of file SlotIndexes.h.

References assert(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::erase(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::find(), and llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert().

Referenced by llvm::LiveIntervals::ReplaceMachineInstrInMaps().

◆ runOnMachineFunction()

bool SlotIndexes::runOnMachineFunction ( MachineFunction & MF )

overridevirtual

runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.

Implements llvm::MachineFunctionPass.

Definition at line 41 of file SlotIndexes.cpp.

References assert(), llvm::dbgs(), llvm::SmallVectorBase::empty(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::empty(), llvm::MachineFunction::getNumBlockIDs(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::insert(), llvm::SlotIndex::InstrDist, LLVM_DEBUG, MI, llvm::SmallVectorTemplateBase< T, bool >::push_back(), llvm::iplist_impl< IntrusiveListT, TraitsT >::push_back(), llvm::SmallVectorImpl< T >::reserve(), llvm::MachineFunction::size(), and llvm::sort().

Member Data Documentation

◆ ID

char SlotIndexes::ID = 0

static

Definition at line 369 of file SlotIndexes.h.

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

include/llvm/CodeGen/SlotIndexes.h
lib/CodeGen/SlotIndexes.cpp

Public Types

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ MBBIndexIterator

Constructor & Destructor Documentation

◆ SlotIndexes()

◆ ~SlotIndexes()

Member Function Documentation

◆ advanceMBBIndex()

◆ dump()

◆ eraseIndex()

◆ findMBBIndex()

◆ getAnalysisUsage()

◆ getIndexAfter()

◆ getIndexBefore()

◆ getInstructionFromIndex()

◆ getInstructionIndex()

◆ getLastIndex()

◆ getMBBCoveringRange()

◆ getMBBEndIdx() [1/2]

◆ getMBBEndIdx() [2/2]

◆ getMBBFromIndex()

◆ getMBBRange() [1/2]

◆ getMBBRange() [2/2]

◆ getMBBStartIdx() [1/2]

◆ getMBBStartIdx() [2/2]

◆ getNextNonNullIndex()

◆ getZeroIndex()

◆ hasIndex()

◆ insertMachineInstrInMaps()

◆ insertMBBInMaps()

◆ MBBIndexBegin()

◆ MBBIndexEnd()

◆ releaseMemory()

◆ removeMachineInstrFromMaps()

◆ removeSingleMachineInstrFromMaps()

◆ renumberIndexes()

◆ repairIndexesInRange()

◆ replaceMachineInstrInMaps()

◆ runOnMachineFunction()

Member Data Documentation

◆ ID