class LoopPass

Declaration

class LoopPass : public Pass { /* full declaration omitted */ };

Description

Pass interface - Implemented by all 'passes'. Subclass this if you are an interprocedural optimization or you do not fit into any of the more constrained passes described below.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:28

Inherits from: Pass

Method Overview

• public LoopPass(char & pid)
• public void assignPassManager(llvm::PMStack & PMS, llvm::PassManagerType PMT)
• public virtual void cloneBasicBlockAnalysis(llvm::BasicBlock * F, llvm::BasicBlock * T, llvm::Loop * L)
• public llvm::Pass * createPrinterPass(llvm::raw_ostream & O, const std::string & Banner) const
• public virtual void deleteAnalysisLoop(llvm::Loop * L)
• public virtual void deleteAnalysisValue(llvm::Value * V, llvm::Loop * L)
• public virtual bool doFinalization()
• public virtual bool doInitialization(llvm::Loop * L, llvm::LPPassManager & LPM)
• public llvm::PassManagerType getPotentialPassManagerType() const
• public void preparePassManager(llvm::PMStack & PMS)
• public virtual bool runOnLoop(llvm::Loop * L, llvm::LPPassManager & LPM)
• protected bool skipLoop(const llvm::Loop * L) const

Inherited from Pass:

• public assignPassManager
• public createPass
• public createPrinterPass
• public doFinalization
• public doInitialization
• public dump
• public dumpPassStructure
• public getAdjustedAnalysisPointer
• public getAnalysis
• public getAnalysis
• public getAnalysisID
• public getAnalysisID
• public getAnalysisIfAvailable
• public getAnalysisUsage
• public getAsImmutablePass
• public getAsPMDataManager
• public getPassID
• public getPassKind
• public getPassName
• public getPotentialPassManagerType
• public getResolver
• public lookupPassInfo
• public lookupPassInfo
• public mustPreserveAnalysisID
• public preparePassManager
• public print
• public releaseMemory
• public setResolver
• public verifyAnalysis

Methods

¶LoopPass(char& pid)

Declared at: llvm/include/llvm/Analysis/LoopPass.h:30

Parameters

char& pid

¶void assignPassManager(llvm::PMStack& PMS,
                       llvm::PassManagerType PMT)

Description

Assign pass manager to manage this pass

Declared at: llvm/include/llvm/Analysis/LoopPass.h:62

Parameters

llvm::PMStack& PMS

llvm::PassManagerType PMT

¶virtual void cloneBasicBlockAnalysis(
    llvm::BasicBlock* F,
    llvm::BasicBlock* T,
    llvm::Loop* L)

Description

Each loop pass can override these simple analysis hooks to update desired analysis information. cloneBasicBlockAnalysis - Clone analysis info associated with basic block.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:79

Parameters

llvm::BasicBlock* F

llvm::BasicBlock* T

llvm::Loop* L

¶llvm::Pass* createPrinterPass(
    llvm::raw_ostream& O,
    const std::string& Banner) const

Description

getPrinterPass - Get a pass to print the function corresponding to a Loop.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:34

Parameters

llvm::raw_ostream& O

const std::string& Banner

¶virtual void deleteAnalysisLoop(llvm::Loop* L)

Description

Delete analysis info associated with Loop L. Called to notify a Pass that a loop has been deleted and any associated analysis values can be deleted.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:87

Parameters

llvm::Loop* L

¶virtual void deleteAnalysisValue(llvm::Value* V,
                                 llvm::Loop* L)

Description

deleteAnalysisValue - Delete analysis info associated with value V.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:82

Parameters

llvm::Value* V

llvm::Loop* L

¶virtual bool doFinalization()

Declared at: llvm/include/llvm/Analysis/LoopPass.h:51

¶virtual bool doInitialization(
    llvm::Loop* L,
    llvm::LPPassManager& LPM)

Declared at: llvm/include/llvm/Analysis/LoopPass.h:45

Parameters

llvm::Loop* L

llvm::LPPassManager& LPM

¶llvm::PassManagerType
getPotentialPassManagerType() const

Description

Return what kind of Pass Manager can manage this pass.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:65

¶void preparePassManager(llvm::PMStack& PMS)

Description

Check if available pass managers are suitable for this pass or not.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:59

Parameters

llvm::PMStack& PMS

¶virtual bool runOnLoop(llvm::Loop* L,
                       llvm::LPPassManager& LPM)

Declared at: llvm/include/llvm/Analysis/LoopPass.h:39

Parameters

llvm::Loop* L

llvm::LPPassManager& LPM

¶bool skipLoop(const llvm::Loop* L) const

Description

Optional passes call this function to check whether the pass should be skipped. This is the case when Attribute::OptimizeNone is set or when optimization bisect is over the limit.

Declared at: llvm/include/llvm/Analysis/LoopPass.h:93

Parameters

const llvm::Loop* L