#include <SlotIndexes.h>

Inheritance diagram for llvm::SlotIndexes:

Collaboration diagram for llvm::SlotIndexes:

Public Member Functions
	SlotIndexes ()

virtual void	getAnalysisUsage (AnalysisUsage &au) const

virtual void	releaseMemory ()

virtual bool	runOnMachineFunction (MachineFunction &fn)

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

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

MachineInstr *	getInstructionFromIndex (SlotIndex index) const

SlotIndex	getNextNonNullIndex (SlotIndex Index)

SlotIndex	getIndexBefore (const MachineInstr *MI) const

SlotIndex	getIndexAfter (const MachineInstr *MI) const

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...

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

bool	findLiveInMBBs (SlotIndex start, SlotIndex end, SmallVectorImpl< MachineBasicBlock * > &mbbs) const

MachineBasicBlock *	getMBBCoveringRange (SlotIndex start, SlotIndex end) const

SlotIndex	insertMachineInstrInMaps (MachineInstr *mi, bool Late=false)

void	removeMachineInstrFromMaps (MachineInstr *mi)
	Remove the given machine instruction from the mapping. More...

void	replaceMachineInstrInMaps (MachineInstr mi, MachineInstr newMI)

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::FunctionPass
	FunctionPass (char &pid)

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

virtual void	assignPassManager (PMStack &PMS, PassManagerType T)

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

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

virtual	~Pass ()

PassKind	getPassKind () const

virtual const char *	getPassName () const

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

virtual bool	doInitialization (Module &)

virtual bool	doFinalization (Module &)

virtual void	print (raw_ostream &O, const Module *M) const

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)

virtual ImmutablePass *	getAsImmutablePass ()

virtual PMDataManager *	getAsPMDataManager ()

virtual void	verifyAnalysis () const

virtual void	dumpPassStructure (unsigned Offset=0)

template<typename AnalysisType >
AnalysisType *	getAnalysisIfAvailable () const

bool	mustPreserveAnalysisID (char &AID) const

template<typename AnalysisType >
AnalysisType &	getAnalysis () const

template<typename AnalysisType >
AnalysisType &	getAnalysis (Function &F)

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)

Detailed Description

SlotIndexes pass.

This pass assigns indexes to each instruction.

Definition at line 334 of file SlotIndexes.h.

Constructor & Destructor Documentation

llvm::SlotIndexes::SlotIndexes ( )

inline

Definition at line 376 of file SlotIndexes.h.

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

Member Function Documentation

void SlotIndexes::dump ( ) const

Dump the indexes.

Definition at line 217 of file SlotIndexes.cpp.

References llvm::iplist< NodeTy, Traits >::begin(), llvm::dbgs(), and llvm::iplist< NodeTy, Traits >::end().

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 689 of file SlotIndexes.h.

References llvm::iplist< NodeTy, Traits >::erase(), and llvm::iplist< NodeTy, Traits >::remove().

bool llvm::SlotIndexes::findLiveInMBBs	(	SlotIndex	start,
		SlotIndex	end,
		SmallVectorImpl< MachineBasicBlock * > &	mbbs
	)		const

inline

Definition at line 522 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), and llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back().

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

void SlotIndexes::getAnalysisUsage ( AnalysisUsage & AU ) const

virtual

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().

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 459 of file SlotIndexes.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::MachineBasicBlock::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), getMBBEndIdx(), llvm::MachineInstr::getParent(), I, and llvm::A64CC::MI.

Referenced by insertMachineInstrInMaps().

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 442 of file SlotIndexes.h.

References llvm::MachineBasicBlock::begin(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), getMBBStartIdx(), llvm::MachineInstr::getParent(), I, and llvm::A64CC::MI.

Referenced by insertMachineInstrInMaps().

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 423 of file SlotIndexes.h.

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

Referenced by llvm::LiveIntervals::getInstructionFromIndex(), getMBBFromIndex(), and llvm::LiveRange::overlaps().

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 llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), and llvm::getBundleStart().

Referenced by llvm::LiveRangeCalc::createDeadDefs(), llvm::LiveRangeCalc::extendToUses(), llvm::LiveIntervals::getInstructionIndex(), llvm::LiveIntervals::handleMove(), llvm::LiveIntervals::handleMoveIntoBundle(), llvm::MachineBasicBlock::print(), and repairIndexesInRange().

SlotIndex llvm::SlotIndexes::getLastIndex ( )

inline

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

Definition at line 403 of file SlotIndexes.h.

References llvm::iplist< NodeTy, Traits >::back().

Referenced by getNextNonNullIndex().

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 540 of file SlotIndexes.h.

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

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

inline

Returns the last index in the given basic block number.

Definition at line 496 of file SlotIndexes.h.

References getMBBRange().

Referenced by llvm::LiveRangeCalc::extendToUses(), getIndexAfter(), llvm::LiveIntervals::getMBBEndIdx(), getMBBFromIndex(), llvm::LiveIntervals::hasPHIKill(), and repairIndexesInRange().

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

inline

Returns the last index in the given basic block.

Definition at line 501 of file SlotIndexes.h.

References getMBBRange().

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

inline

Returns the basic block which the given index falls in.

Definition at line 506 of file SlotIndexes.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), getInstructionFromIndex(), getMBBEndIdx(), I, llvm::A64CC::MI, and llvm::SmallVectorTemplateCommon< T, typename >::size().

Referenced by llvm::LiveRangeCalc::extend(), llvm::LiveIntervals::getMBBFromIndex(), llvm::LiveIntervals::intervalIsInOneMBB(), and llvm::LiveIntervals::pruneValue().

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 475 of file SlotIndexes.h.

Referenced by getMBBEndIdx(), getMBBRange(), getMBBStartIdx(), llvm::LiveIntervals::pruneValue(), llvm::SplitEditor::splitLiveThroughBlock(), llvm::SplitEditor::splitRegInBlock(), and llvm::SplitEditor::splitRegOutBlock().

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 481 of file SlotIndexes.h.

References getMBBRange(), and llvm::MachineBasicBlock::getNumber().

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

inline

Returns the first index in the given basic block number.

Definition at line 486 of file SlotIndexes.h.

References getMBBRange().

Referenced by llvm::LiveRangeCalc::createDeadDefs(), llvm::LiveRangeCalc::extend(), getIndexBefore(), llvm::LiveIntervals::getMBBStartIdx(), insertMBBInMaps(), llvm::MachineBasicBlock::print(), and repairIndexesInRange().

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

inline

Returns the first index in the given basic block.

Definition at line 491 of file SlotIndexes.h.

References getMBBRange().

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

inline

Returns the next non-null index, if one exists. Otherwise returns getLastIndex().

Definition at line 429 of file SlotIndexes.h.

References llvm::iplist< NodeTy, Traits >::end(), getLastIndex(), and I.

Referenced by llvm::LiveRange::isZeroLength().

SlotIndex llvm::SlotIndexes::getZeroIndex ( )

inline

Returns the zero index for this analysis.

Definition at line 397 of file SlotIndexes.h.

References llvm::iplist< NodeTy, Traits >::front(), and llvm::IndexListEntry::getIndex().

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 >::count().

Referenced by llvm::LiveIntervals::isNotInMIMap(), llvm::MachineBasicBlock::print(), repairIndexesInRange(), and llvm::LiveIntervals::repairIntervalsInRange().

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 569 of file SlotIndexes.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), getIndexAfter(), getIndexBefore(), llvm::MachineInstr::getParent(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::insert(), llvm::ilist< NodeTy >::insert(), llvm::MachineInstr::isDebugValue(), llvm::MachineInstr::isInsideBundle(), llvm::next(), llvm::prior(), and renumberIndexes().

Referenced by llvm::LiveIntervals::handleMove(), llvm::LiveIntervals::InsertMachineInstrInMaps(), llvm::LiveIntervals::InsertMachineInstrRangeInMaps(), llvm::LiveRangeEdit::rematerializeAt(), and repairIndexesInRange().

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

inline

Add the given MachineBasicBlock into the maps.

Definition at line 639 of file SlotIndexes.h.

References llvm::iplist< NodeTy, Traits >::back(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), llvm::MachineFunction::end(), getMBBStartIdx(), llvm::MachineBasicBlock::getNumber(), llvm::MachineBasicBlock::getParent(), llvm::ilist< NodeTy >::insert(), llvm::iplist< NodeTy, Traits >::insertAfter(), llvm::next(), llvm::SmallVectorTemplateBase< T, isPodLike >::push_back(), and renumberIndexes().

Referenced by llvm::LiveIntervals::insertMBBInMaps(), and llvm::MachineBasicBlock::SplitCriticalEdge().

void SlotIndexes::releaseMemory ( )

virtual

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 >::clear(), llvm::SmallVectorImpl< T >::clear(), llvm::iplist< NodeTy, Traits >::clear(), and llvm::BumpPtrAllocator::Reset().

void llvm::SlotIndexes::removeMachineInstrFromMaps ( MachineInstr * mi )

inline

Remove the given machine instruction from the mapping.

Definition at line 610 of file SlotIndexes.h.

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

Referenced by llvm::LiveIntervals::handleMove(), llvm::LiveIntervals::RemoveMachineInstrFromMaps(), and repairIndexesInRange().

void SlotIndexes::renumberIndexes ( )

Renumber the index list, providing space for new instructions.