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This class implements the register bank concept.More...

#include "llvm/CodeGen/RegisterBank.h"

Public Member Functions
constexpr	RegisterBank (unsigned ID,const char Name,const uint32_t CoveredClasses,unsigned NumRegClasses)

unsigned	getID ()const
	Get the identifier of this register bank.

const char *	getName ()const
	Get a user friendly name of this register bank.

bool	verify (const RegisterBankInfo &RBI,const TargetRegisterInfo &TRI)const
	Check if this register bank is valid.

bool	covers (const TargetRegisterClass &RC)const
	Check whether this register bank covers`RC`.

bool	operator== (const RegisterBank &OtherRB)const
	Check whether`OtherRB` is the same as this.

bool	operator!= (const RegisterBank &OtherRB)const

void	dump (const TargetRegisterInfo *TRI=nullptr)const
	Dump the register mask ondbgs() stream.

void	print (raw_ostream &OS,bool IsForDebug=false,const TargetRegisterInfo *TRI=nullptr)const
	Print the register mask on OS.

Detailed Description

This class implements the register bank concept.

Two instances ofRegisterBank must have different ID. This property is enforced by theRegisterBankInfo class.

Definition at line28 of fileRegisterBank.h.

Constructor & Destructor Documentation

◆ RegisterBank()

constexpr llvm::RegisterBank::RegisterBank	(	unsigned	ID,
		const char *	Name,
		const uint32_t *	CoveredClasses,
		unsigned	NumRegClasses
	)

inlineconstexpr

Definition at line39 of fileRegisterBank.h.

Member Function Documentation

◆ covers()

bool RegisterBank::covers

(

const TargetRegisterClass &

)

const

Check whether this register bank coversRC.

In other words, check if this register bank fully covers the registers thatRC contains.

Definition at line52 of fileRegisterBank.cpp.

Referencesllvm::TargetRegisterClass::getID().

Referenced byllvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo(),llvm::ARMRegisterBankInfo::ARMRegisterBankInfo(),llvm::RegisterBankInfo::constrainGenericRegister(),llvm::RegisterBankInfo::getRegBankFromConstraints(),print(),verify(), andllvm::X86RegisterBankInfo::X86RegisterBankInfo().

◆ dump()

LLVM_DUMP_METHOD void RegisterBank::dump ( const TargetRegisterInfo * TRI =nullptr ) const

Dump the register mask ondbgs() stream.

The dump is verbose.

Definition at line66 of fileRegisterBank.cpp.

Referencesllvm::dbgs(),print(), andTRI.

◆ getID()

unsigned llvm::RegisterBank::getID

(

)

const

inline

Get the identifier of this register bank.

Definition at line45 of fileRegisterBank.h.

Referenced byllvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo(),llvm::AMDGPURegisterBankInfo::applyMappingImpl(),llvm::ARMRegisterBankInfo::ARMRegisterBankInfo(),llvm::ARM::checkPartMapping(),llvm::AMDGPURegisterBankInfo::collectWaterfallOperands(),getAnySgprS1(),getInsertVecEltOpInfo(),llvm::AArch64RegisterBankInfo::getInstrMapping(),llvm::AMDGPURegisterBankInfo::getInstrMapping(),llvm::PPCRegisterBankInfo::getInstrMapping(),llvm::SIInstrInfo::getInstructionUniformity(),getMinClassForRegBank(),getMinSizeForRegBank(),llvm::AMDGPURegisterBankInfo::getRegBankID(),llvm::SIRegisterInfo::getRegClassForSizeOnBank(),llvm::AMDGPURegisterBankInfo::getValueMappingForPtr(),hashPartialMapping(),AMDGPURegBankLegalizeCombiner::isLaneMask(),isLaneMaskFromSameBlock(),isVectorRegisterBank(),operator==(),print(),selectCopy(),selectMergeValues(),selectUnmergeValues(),verify(),llvm::RegisterBankInfo::verify(), andllvm::X86RegisterBankInfo::X86RegisterBankInfo().

◆ getName()

const char * llvm::RegisterBank::getName

(

)

const

inline

Get a user friendly name of this register bank.

Should be used only for debugging purposes.

Definition at line49 of fileRegisterBank.h.

Referenced byprint(), andllvm::printRegClassOrBank().

◆ operator!=()

bool llvm::RegisterBank::operator!=

(

const RegisterBank &

OtherRB

)

const

inline

Definition at line66 of fileRegisterBank.h.

Referencesoperator==().

◆ operator==()

bool RegisterBank::operator==

(

const RegisterBank &

OtherRB

)

const

Check whetherOtherRB is the same as this.

Definition at line56 of fileRegisterBank.cpp.

Referencesassert(), andgetID().

Referenced byoperator!=().

◆ print()

void RegisterBank::print	(	raw_ostream &	OS,
		bool	IsForDebug =`false`,
		const TargetRegisterInfo *	TRI =`nullptr`
	)		const

Print the register mask on OS.

If IsForDebug is false, then only the name of the register bank is printed. Otherwise, all the fields are printing. TRI is then used to print the name of the register classes that this register bank covers.

Definition at line71 of fileRegisterBank.cpp.

Referencesassert(),covers(),End,getID(),getName(),OS,llvm::popcount(), andTRI.

Referenced bydump(), andllvm::operator<<().