#include "llvm/CodeGen/LiveStacks.h"

Inheritance diagram for llvm::LiveStacks:

[legend]

Public Types
using	iterator = SS2IntervalMap::iterator

using	const_iterator = SS2IntervalMap::const_iterator

Public Member Functions
	LiveStacks ()

const_iterator	begin () const

const_iterator	end () const

iterator	begin ()

iterator	end ()

unsigned	getNumIntervals () const

LiveInterval &	getOrCreateInterval (int Slot, const TargetRegisterClass *RC)

LiveInterval &	getInterval (int Slot)

const LiveInterval &	getInterval (int Slot) const

bool	hasInterval (int Slot) const

const TargetRegisterClass *	getIntervalRegClass (int Slot) const

VNInfo::Allocator &	getVNInfoAllocator ()

void	getAnalysisUsage (AnalysisUsage &AU) const override
	getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.

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.

bool	runOnMachineFunction (MachineFunction &) override
	runOnMachineFunction - pass entry point

void	print (raw_ostream &O, const Module *=nullptr) const override
	print - Implement the dump method.

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.

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.

virtual bool	runOnFunction (Function &F)=0
	runOnFunction - Virtual method overriden by subclasses to do the per-function processing of the pass.

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.

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

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.

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

virtual bool	doInitialization (Module &)
	doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run.

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

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

void	dump () const

virtual Pass *	createPrinterPass (raw_ostream &OS, const std::string &Banner) const =0
	createPrinterPass - Get a Pass appropriate to print the IR this pass operates on (Module, Function or MachineFunction).

virtual void	assignPassManager (PMStack &, PassManagerType)
	Each pass is responsible for assigning a pass manager to itself.

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

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

void	setResolver (AnalysisResolver *AR)

AnalysisResolver *	getResolver () const

virtual void	getAnalysisUsage (AnalysisUsage &) const
	getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.

virtual void	releaseMemory ()
	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.

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

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.

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.

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

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.

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

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

template<typename AnalysisType >
AnalysisType &	getAnalysisID (AnalysisID PI, Function &F, bool *Changed=nullptr)

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 bool	runOnMachineFunction (MachineFunction &MF)=0
	runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.

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

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.

Detailed Description

Definition at line 35 of file LiveStacks.h.

Member Typedef Documentation

◆ const_iterator

using llvm::LiveStacks::const_iterator = SS2IntervalMap::const_iterator

Definition at line 57 of file LiveStacks.h.

◆ iterator

using llvm::LiveStacks::iterator = SS2IntervalMap::iterator

Definition at line 56 of file LiveStacks.h.

Constructor & Destructor Documentation

◆ LiveStacks()

llvm::LiveStacks::LiveStacks ( )

inline

Definition at line 52 of file LiveStacks.h.

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

Member Function Documentation

◆ begin() [1/2]

iterator llvm::LiveStacks::begin ( )

inline

Definition at line 61 of file LiveStacks.h.

◆ begin() [2/2]

const_iterator llvm::LiveStacks::begin ( ) const

inline

Definition at line 59 of file LiveStacks.h.

Referenced by print().

◆ end() [1/2]

iterator llvm::LiveStacks::end ( )

inline

Definition at line 62 of file LiveStacks.h.

◆ end() [2/2]

const_iterator llvm::LiveStacks::end ( ) const

inline

Definition at line 60 of file LiveStacks.h.

Referenced by print().

◆ getAnalysisUsage()

void LiveStacks::getAnalysisUsage ( AnalysisUsage & ) const

overridevirtual

getAnalysisUsage - This function should be overriden by passes that need analysis information to do their job.

If a pass specifies that it uses a particular analysis result to this function, it can then use the getAnalysis<AnalysisType>() function, below.

Reimplemented from llvm::Pass.

Definition at line 32 of file LiveStacks.cpp.

References llvm::MachineFunctionPass::getAnalysisUsage().

◆ getInterval() [1/2]

LiveInterval & llvm::LiveStacks::getInterval ( int Slot )

inline

Definition at line 68 of file LiveStacks.h.

References assert(), and I.

◆ getInterval() [2/2]

const LiveInterval & llvm::LiveStacks::getInterval ( int Slot ) const

inline

Definition at line 75 of file LiveStacks.h.

References assert(), and I.

◆ getIntervalRegClass()

const TargetRegisterClass * llvm::LiveStacks::getIntervalRegClass ( int Slot ) const

inline

Definition at line 84 of file LiveStacks.h.

References assert(), and I.

Referenced by print().

◆ getNumIntervals()

unsigned llvm::LiveStacks::getNumIntervals ( ) const

inline

Definition at line 64 of file LiveStacks.h.

◆ getOrCreateInterval()

LiveInterval & LiveStacks::getOrCreateInterval	(	int	Slot,
		const TargetRegisterClass *	RC
	)

Definition at line 54 of file LiveStacks.cpp.

References assert(), llvm::TargetRegisterInfo::getCommonSubClass(), I, and llvm::Register::index2StackSlot().

◆ getVNInfoAllocator()

VNInfo::Allocator & llvm::LiveStacks::getVNInfoAllocator ( )

inline

Definition at line 93 of file LiveStacks.h.

◆ hasInterval()

bool llvm::LiveStacks::hasInterval ( int Slot ) const

inline

Definition at line 82 of file LiveStacks.h.

◆ print()

void LiveStacks::print	(	raw_ostream &	O,
		const Module *	= `nullptr`
	)		const

overridevirtual

print - Implement the dump method.

Reimplemented from llvm::Pass.

Definition at line 73 of file LiveStacks.cpp.

References begin(), end(), getIntervalRegClass(), llvm::TargetRegisterInfo::getRegClassName(), I, and OS.

◆ releaseMemory()

void LiveStacks::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 39 of file LiveStacks.cpp.

References llvm::BumpPtrAllocatorImpl< AllocatorT, SlabSize, SizeThreshold, GrowthDelay >::Reset().

◆ runOnMachineFunction()

bool LiveStacks::runOnMachineFunction ( MachineFunction & MF )

overridevirtual

runOnMachineFunction - pass entry point

Implements llvm::MachineFunctionPass.

Definition at line 46 of file LiveStacks.cpp.

References llvm::TargetSubtargetInfo::getRegisterInfo(), and llvm::MachineFunction::getSubtarget().

Member Data Documentation

◆ ID

char LiveStacks::ID = 0

static

Definition at line 50 of file LiveStacks.h.

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

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

Public Types

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ const_iterator

◆ iterator

Constructor & Destructor Documentation

◆ LiveStacks()

Member Function Documentation

◆ begin() [1/2]

◆ begin() [2/2]

◆ end() [1/2]

◆ end() [2/2]

◆ getAnalysisUsage()

◆ getInterval() [1/2]

◆ getInterval() [2/2]

◆ getIntervalRegClass()

◆ getNumIntervals()

◆ getOrCreateInterval()

◆ getVNInfoAllocator()

◆ hasInterval()

◆ print()

◆ releaseMemory()

◆ runOnMachineFunction()

Member Data Documentation

◆ ID