#include <MachineLoopInfo.h>

Inheritance diagram for llvm::MachineLoopInfo:

Collaboration diagram for llvm::MachineLoopInfo:

Public Types
typedef LoopInfoBase < MachineBasicBlock, MachineLoop >::iterator	iterator

Public Member Functions
	MachineLoopInfo ()

LoopInfoBase < MachineBasicBlock, MachineLoop > &	getBase ()

iterator	begin () const

iterator	end () const

bool	empty () const

MachineLoop *	getLoopFor (const MachineBasicBlock *BB) const

const MachineLoop *	operator[] (const MachineBasicBlock *BB) const

unsigned	getLoopDepth (const MachineBasicBlock *BB) const

bool	isLoopHeader (MachineBasicBlock *BB) const

virtual bool	runOnMachineFunction (MachineFunction &F)

virtual void	releaseMemory ()

virtual void	getAnalysisUsage (AnalysisUsage &AU) const

MachineLoop *	removeLoop (iterator I)

void	changeLoopFor (MachineBasicBlock BB, MachineLoop L)

void	changeTopLevelLoop (MachineLoop OldLoop, MachineLoop NewLoop)

void	addTopLevelLoop (MachineLoop *New)

void	removeBlock (MachineBasicBlock *BB)

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

Friends
class	LoopBase< MachineBasicBlock, MachineLoop >

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

Definition at line 72 of file MachineLoopInfo.h.

Member Typedef Documentation

typedef LoopInfoBase<MachineBasicBlock, MachineLoop>::iterator llvm::MachineLoopInfo::iterator

iterator/begin/end - The interface to the top-level loops in the current function.

Definition at line 91 of file MachineLoopInfo.h.

Constructor & Destructor Documentation

llvm::MachineLoopInfo::MachineLoopInfo ( )

inline

Definition at line 82 of file MachineLoopInfo.h.

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

Member Function Documentation

void llvm::MachineLoopInfo::addTopLevelLoop ( MachineLoop * New )

inline

addTopLevelLoop - This adds the specified loop to the collection of top-level loops.

Definition at line 148 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::addTopLevelLoop().

iterator llvm::MachineLoopInfo::begin ( ) const

inline

Definition at line 92 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::begin().

void llvm::MachineLoopInfo::changeLoopFor	(	MachineBasicBlock *	BB,
		MachineLoop *	L
	)

inline

changeLoopFor - Change the top-level loop that contains BB to the specified loop. This should be used by transformations that restructure the loop hierarchy tree.

Definition at line 136 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::changeLoopFor().

void llvm::MachineLoopInfo::changeTopLevelLoop	(	MachineLoop *	OldLoop,
		MachineLoop *	NewLoop
	)

inline

changeTopLevelLoop - Replace the specified loop in the top-level loops list with the indicated loop.

Definition at line 142 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::changeTopLevelLoop().

bool llvm::MachineLoopInfo::empty ( ) const

inline

Definition at line 94 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::empty().

iterator llvm::MachineLoopInfo::end ( ) const

inline

Definition at line 93 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::end().

void MachineLoopInfo::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 43 of file MachineLoopInfo.cpp.

References llvm::AnalysisUsage::addRequired(), llvm::MachineFunctionPass::getAnalysisUsage(), and llvm::AnalysisUsage::setPreservesAll().

LoopInfoBase<MachineBasicBlock, MachineLoop>& llvm::MachineLoopInfo::getBase ( )

inline

Definition at line 86 of file MachineLoopInfo.h.

References LI.

unsigned llvm::MachineLoopInfo::getLoopDepth ( const MachineBasicBlock * BB ) const

inline

getLoopDepth - Return the loop nesting level of the specified block...

Definition at line 111 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::getLoopDepth().

Referenced by llvm::VLIWMachineScheduler::schedule().

MachineLoop* llvm::MachineLoopInfo::getLoopFor ( const MachineBasicBlock * BB ) const

inline

getLoopFor - Return the inner most loop that BB lives in. If a basic block is in no loop (for example the entry node), null is returned.

Definition at line 99 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::getLoopFor().

Referenced by llvm::VirtRegAuxInfo::calculateSpillWeightAndHint(), and emitBasicBlockLoopComments().

bool llvm::MachineLoopInfo::isLoopHeader ( MachineBasicBlock * BB ) const

inline

Definition at line 116 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::isLoopHeader().

const MachineLoop* llvm::MachineLoopInfo::operator[] ( const MachineBasicBlock * BB ) const

inline

operator[] - same as getLoopFor...

Definition at line 105 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::getLoopFor().

virtual void llvm::MachineLoopInfo::releaseMemory ( )

inlinevirtual

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 124 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::releaseMemory().

void llvm::MachineLoopInfo::removeBlock ( MachineBasicBlock * BB )

inline

removeBlock - This method completely removes BB from all data structures, including all of the Loop objects it is nested in and our mapping from MachineBasicBlocks to loops.

Definition at line 155 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::removeBlock().

MachineLoop* llvm::MachineLoopInfo::removeLoop ( iterator I )

inline

removeLoop - This removes the specified top-level loop from this loop info object. The loop is not deleted, as it will presumably be inserted into another loop.

Definition at line 131 of file MachineLoopInfo.h.

References llvm::LoopInfoBase< N, M >::removeLoop().

bool MachineLoopInfo::runOnMachineFunction ( MachineFunction & F )

virtual

runOnFunction - Calculate the natural loop information.

Implements llvm::MachineFunctionPass.

Definition at line 37 of file MachineLoopInfo.cpp.

References LI.

Friends And Related Function Documentation

friend class LoopBase< MachineBasicBlock, MachineLoop >

friend

Definition at line 74 of file MachineLoopInfo.h.

Member Data Documentation

char MachineLoopInfo::ID = 0

static

Definition at line 80 of file MachineLoopInfo.h.

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

Public Types

Public Member Functions

Static Public Attributes

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation