This analysis provides dependence information for the memory accesses of a loop. More...

#include "llvm/Analysis/LoopAccessAnalysis.h"

Inheritance diagram for llvm::LoopAccessLegacyAnalysis:

Collaboration diagram for llvm::LoopAccessLegacyAnalysis:

Public Member Functions
	LoopAccessLegacyAnalysis ()

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

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

const LoopAccessInfo &	getInfo (Loop *L)
	Query the result of the loop access information for the loop `L`. 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...

void	print (raw_ostream &OS, const Module *M=nullptr) const override
	Print the result of the analysis when invoked with -analyze. 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	doInitialization (Module &)
	doInitialization - Virtual method overridden by subclasses to do any necessary initialization before any pass is run. More...

virtual bool	doFinalization (Module &)
	doFinalization - Virtual method overriden by subclasses to do any necessary clean up after all passes have run. 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::FunctionPass
bool	skipFunction (const Function &F) const
	Optional passes call this function to check whether the pass should be skipped. More...

Detailed Description

This analysis provides dependence information for the memory accesses of a loop.

It runs the analysis for a loop on demand. This can be initiated by querying the loop access info via LAA::getInfo. getInfo return a LoopAccessInfo object. See this class for the specifics of what information is provided.

Definition at line 718 of file LoopAccessAnalysis.h.

Constructor & Destructor Documentation

◆ LoopAccessLegacyAnalysis()

llvm::LoopAccessLegacyAnalysis::LoopAccessLegacyAnalysis ( )

inline

Definition at line 722 of file LoopAccessAnalysis.h.

References F(), llvm::PassRegistry::getPassRegistry(), llvm::initializeLoopAccessLegacyAnalysisPass(), and runOnFunction().

Member Function Documentation

◆ getAnalysisUsage()

void LoopAccessLegacyAnalysis::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 2366 of file LoopAccessAnalysis.cpp.

References llvm::AnalysisUsage::addRequired(), ID, and llvm::AnalysisUsage::setPreservesAll().

◆ getInfo()

const LoopAccessInfo & LoopAccessLegacyAnalysis::getInfo ( Loop * L )

Query the result of the loop access information for the loop L.

If there is no cached result available run the analysis.

Definition at line 2335 of file LoopAccessAnalysis.cpp.

Referenced by print().

◆ print()

void LoopAccessLegacyAnalysis::print	(	raw_ostream &	OS,
		const Module *	M = `nullptr`
	)		const

overridevirtual

Print the result of the analysis when invoked with -analyze.

Reimplemented from llvm::Pass.

Definition at line 2344 of file LoopAccessAnalysis.cpp.

References llvm::depth_first(), getInfo(), llvm::raw_ostream::indent(), and llvm::LoopAccessInfo::print().

◆ releaseMemory()

void llvm::LoopAccessLegacyAnalysis::releaseMemory ( )

inlineoverridevirtual

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 735 of file LoopAccessAnalysis.h.

References print().