class InstructionSelect

Declaration

class InstructionSelect : public MachineFunctionPass { /* full declaration omitted */ };

Description

This pass is responsible for selecting generic machine instructions to target-specific instructions. It relies on the InstructionSelector provided by the target. Selection is done by examining blocks in post-order, and instructions in reverse order.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:33

Inherits from: MachineFunctionPass

Member Variables

protected llvm::BlockFrequencyInfo* BFI = nullptr

protected llvm::ProfileSummaryInfo* PSI = nullptr

protected CodeGenOpt::Level OptLevel = CodeGenOpt::None

public static char ID

Method Overview

• public InstructionSelect(CodeGenOpt::Level OL)
• public InstructionSelect()
• public void getAnalysisUsage(llvm::AnalysisUsage & AU) const
• public llvm::StringRef getPassName() const
• public llvm::MachineFunctionProperties getRequiredProperties() const
• public llvm::MachineFunctionProperties getSetProperties() const
• public bool runOnMachineFunction(llvm::MachineFunction & MF)

Inherited from MachineFunctionPass:

• public doInitialization
• protected getAnalysisUsage
• protected getClearedProperties
• protected getRequiredProperties
• protected getSetProperties
• protected runOnMachineFunction

Inherited from FunctionPass:

• public assignPassManager
• public createPrinterPass
• public getPotentialPassManagerType
• public runOnFunction
• protected skipFunction

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

¶InstructionSelect(CodeGenOpt::Level OL)

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:52

Parameters

CodeGenOpt::Level OL

¶InstructionSelect()

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:53

¶void getAnalysisUsage(
    llvm::AnalysisUsage& AU) const

Description

getAnalysisUsage - Subclasses that override getAnalysisUsage must call this. For MachineFunctionPasses, calling AU.preservesCFG() indicates that the pass does not modify the MachineBasicBlock CFG.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:38

Parameters

llvm::AnalysisUsage& AU

¶llvm::StringRef getPassName() const

Description

getPassName - Return a nice clean name for a pass. This usually implemented in terms of the name that is registered by one of the Registration templates, but can be overloaded directly.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:36

¶llvm::MachineFunctionProperties
getRequiredProperties() const

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:40

¶llvm::MachineFunctionProperties getSetProperties()
    const

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:47

¶bool runOnMachineFunction(
    llvm::MachineFunction& MF)

Description

runOnMachineFunction - This method must be overloaded to perform the desired machine code transformation or analysis.

Declared at: llvm/include/llvm/CodeGen/GlobalISel/InstructionSelect.h:55

Parameters

llvm::MachineFunction& MF