LLVM  6.0.0svn
Public Member Functions | Static Public Attributes | List of all members
llvm::LoopAccessLegacyAnalysis Class Reference

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

#include "llvm/Analysis/LoopAccessAnalysis.h"

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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 LoopAccessInfogetInfo (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)
 
PasscreatePrinterPass (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
 
Passoperator= (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)
 
AnalysisResolvergetResolver () const
 
virtual void * getAdjustedAnalysisPointer (AnalysisID ID)
 getAdjustedAnalysisPointer - This method is used when a pass implements an analysis interface through multiple inheritance. More...
 
virtual ImmutablePassgetAsImmutablePass ()
 
virtual PMDataManagergetAsPMDataManager ()
 
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 PassInfolookupPassInfo (const void *TI)
 
static const PassInfolookupPassInfo (StringRef Arg)
 
static PasscreatePass (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 682 of file LoopAccessAnalysis.h.

Constructor & Destructor Documentation

◆ LoopAccessLegacyAnalysis()

llvm::LoopAccessLegacyAnalysis::LoopAccessLegacyAnalysis ( )
inline

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 2271 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 2240 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 2249 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 699 of file LoopAccessAnalysis.h.

References print().

◆ runOnFunction()

bool LoopAccessLegacyAnalysis::runOnFunction ( Function F)
overridevirtual

runOnFunction - Virtual method overriden by subclasses to do the per-function processing of the pass.

Implements llvm::FunctionPass.

Definition at line 2260 of file LoopAccessAnalysis.cpp.

Member Data Documentation

◆ ID

char LoopAccessLegacyAnalysis::ID = 0
static

Definition at line 684 of file LoopAccessAnalysis.h.

Referenced by getAnalysisUsage().


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