class RegionPass

Declaration

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

Description

A pass that runs on each Region in a function. RegionPass is managed by RGPassManager.

Declared at: llvm/include/llvm/Analysis/RegionPass.h:33

Inherits from: Pass

Method Overview

• public RegionPass(char & pid)
• public void assignPassManager(llvm::PMStack & PMS, llvm::PassManagerType PMT = PMT_RegionPassManager)
• public llvm::Pass * createPrinterPass(llvm::raw_ostream & O, const std::string & Banner) const
• public virtual bool doFinalization()
• public virtual bool doInitialization(llvm::Region * R, llvm::RGPassManager & RGM)
• public llvm::PassManagerType getPotentialPassManagerType() const
• public void preparePassManager(llvm::PMStack & PMS)
• public virtual bool runOnRegion(llvm::Region * R, llvm::RGPassManager & RGM)
• protected bool skipRegion(llvm::Region & R) 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

¶RegionPass(char& pid)

Declared at: llvm/include/llvm/Analysis/RegionPass.h:35

Parameters

char& pid

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

Description

Assign pass manager to manage this pass.

Declared at: llvm/include/llvm/Analysis/RegionPass.h:73

Parameters

llvm::PMStack& PMS

llvm::PassManagerType PMT = PMT_RegionPassManager

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

Description

Get a pass to print the LLVM IR in the region.

Declared at: llvm/include/llvm/Analysis/RegionPass.h:57

Parameters

llvm::raw_ostream& O

The output stream to print the Region.

const std::string& Banner

The banner to separate different printed passes.

Returns

The pass to print the LLVM IR in the region.

¶virtual bool doFinalization()

Declared at: llvm/include/llvm/Analysis/RegionPass.h:64

¶virtual bool doInitialization(
    llvm::Region* R,
    llvm::RGPassManager& RGM)

Declared at: llvm/include/llvm/Analysis/RegionPass.h:63

Parameters

llvm::Region* R

llvm::RGPassManager& RGM

¶llvm::PassManagerType
getPotentialPassManagerType() const

Description

Return what kind of Pass Manager can manage this pass.

Declared at: llvm/include/llvm/Analysis/RegionPass.h:76

¶void preparePassManager(llvm::PMStack& PMS)

Description

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

Declared at: llvm/include/llvm/Analysis/RegionPass.h:71

Parameters

llvm::PMStack& PMS

¶virtual bool runOnRegion(llvm::Region* R,
                         llvm::RGPassManager& RGM)

Description

Run the pass on a specific Region Accessing regions not contained in the current region is not allowed.

Declared at: llvm/include/llvm/Analysis/RegionPass.h:49

Parameters

llvm::Region* R

The region this pass is run on.

llvm::RGPassManager& RGM

The RegionPassManager that manages this Pass.

Returns

True if the pass modifies this Region.

¶bool skipRegion(llvm::Region& R) const

Description

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

Declared at: llvm/include/llvm/Analysis/RegionPass.h:84

Parameters

llvm::Region& R