#include "Target/AArch64/GISel/AArch64RegisterBankInfo.h"

Inheritance diagram for llvm::AArch64GenRegisterBankInfo:

Protected Types
enum	PartialMappingIdx { PMI_None = -1 , PMI_FPR16 = 1 , PMI_FPR32 , PMI_FPR64 , PMI_FPR128 , PMI_FPR256 , PMI_FPR512 , PMI_GPR32 , PMI_GPR64 , PMI_GPR128 , PMI_FirstGPR = PMI_GPR32 , PMI_LastGPR = PMI_GPR128 , PMI_FirstFPR = PMI_FPR16 , PMI_LastFPR = PMI_FPR512 , PMI_Min = PMI_FirstFPR }
enum	ValueMappingIdx { InvalidIdx = 0 , First3OpsIdx = 1 , Last3OpsIdx = 25 , DistanceBetweenRegBanks = 3 , FirstCrossRegCpyIdx = 28 , LastCrossRegCpyIdx = 42 , DistanceBetweenCrossRegCpy = 2 , FPExt16To32Idx = 44 , FPExt16To64Idx = 46 , FPExt32To64Idx = 48 , FPExt64To128Idx = 50 , Shift64Imm = 52 }

Static Protected Member Functions
static bool	checkPartialMap (unsigned Idx, unsigned ValStartIdx, unsigned ValLength, const RegisterBank &RB)
static bool	checkValueMapImpl (unsigned Idx, unsigned FirstInBank, unsigned Size, unsigned Offset)
static bool	checkPartialMappingIdx (PartialMappingIdx FirstAlias, PartialMappingIdx LastAlias, ArrayRef< PartialMappingIdx > Order)
static unsigned	getRegBankBaseIdxOffset (unsigned RBIdx, TypeSize Size)
static const RegisterBankInfo::ValueMapping *	getValueMapping (PartialMappingIdx RBIdx, TypeSize Size)
	Get the pointer to the ValueMapping representing the RegisterBank at `RBIdx` with a size of `Size`.
static const RegisterBankInfo::ValueMapping *	getCopyMapping (unsigned DstBankID, unsigned SrcBankID, TypeSize Size)
	Get the pointer to the ValueMapping of the operands of a copy instruction from the `SrcBankID` register bank to the `DstBankID` register bank with a size of `Size`.
static const RegisterBankInfo::ValueMapping *	getFPExtMapping (unsigned DstSize, unsigned SrcSize)
	Get the instruction mapping for G_FPEXT.

Static Protected Attributes
static const RegisterBankInfo::PartialMapping	PartMappings []
static const RegisterBankInfo::ValueMapping	ValMappings []
static const PartialMappingIdx	BankIDToCopyMapIdx []

Additional Inherited Members
Public Types inherited from llvm::RegisterBankInfo
using	InstructionMappings = SmallVector<const InstructionMapping *, 4>
	Convenient type to represent the alternatives for mapping an instruction.
Public Member Functions inherited from llvm::RegisterBankInfo
const RegisterBank *	getRegBankFromConstraints (const MachineInstr &MI, unsigned OpIdx, const TargetInstrInfo &TII, const MachineRegisterInfo &MRI) const
	Get the register bank for the `OpIdx-th` operand of `MI` form the encoding constraints, if any.
virtual void	applyMappingImpl (MachineIRBuilder &Builder, const OperandsMapper &OpdMapper) const
	See applyMapping.
virtual	~RegisterBankInfo ()=default
const RegisterBank &	getRegBank (unsigned ID) const
	Get the register bank identified by `ID`.
unsigned	getMaximumSize (unsigned RegBankID) const
	Get the maximum size in bits that fits in the given register bank.
const RegisterBank *	getRegBank (Register Reg, const MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI) const
	Get the register bank of `Reg`.
unsigned	getNumRegBanks () const
	Get the total number of register banks.
virtual bool	isDivergentRegBank (const RegisterBank *RB) const
	Returns true if the register bank is considered divergent.
virtual const RegisterBank &	getRegBankFromRegClass (const TargetRegisterClass &RC, LLT Ty) const
	Get a register bank that covers `RC`.
virtual unsigned	copyCost (const RegisterBank &A, const RegisterBank &B, TypeSize Size) const
	Get the cost of a copy from `B` to `A`, or put differently, get the cost of A = COPY B.
bool	cannotCopy (const RegisterBank &Dst, const RegisterBank &Src, TypeSize Size) const
virtual unsigned	getBreakDownCost (const ValueMapping &ValMapping, const RegisterBank *CurBank=nullptr) const
	Get the cost of using `ValMapping` to decompose a register.
virtual const InstructionMapping &	getInstrMapping (const MachineInstr &MI) const
	Get the mapping of the different operands of `MI` on the register bank.
virtual InstructionMappings	getInstrAlternativeMappings (const MachineInstr &MI) const
	Get the alternative mappings for `MI`.
InstructionMappings	getInstrPossibleMappings (const MachineInstr &MI) const
	Get the possible mapping for `MI`.
void	applyMapping (MachineIRBuilder &Builder, const OperandsMapper &OpdMapper) const
	Apply `OpdMapper.getInstrMapping()` to `OpdMapper.getMI()`.
TypeSize	getSizeInBits (Register Reg, const MachineRegisterInfo &MRI, const TargetRegisterInfo &TRI) const
	Get the size in bits of `Reg`.
bool	verify (const TargetRegisterInfo &TRI) const
	Check that information hold by this instance make sense for the given `TRI`.
const InstructionMapping &	getInstructionMapping (unsigned ID, unsigned Cost, const ValueMapping *OperandsMapping, unsigned NumOperands) const
	Method to get a uniquely generated InstructionMapping.
const InstructionMapping &	getInvalidInstructionMapping () const
	Method to get a uniquely generated invalid InstructionMapping.
Static Public Member Functions inherited from llvm::RegisterBankInfo
static void	applyDefaultMapping (const OperandsMapper &OpdMapper)
	Helper method to apply something that is like the default mapping.
static const TargetRegisterClass *	constrainGenericRegister (Register Reg, const TargetRegisterClass &RC, MachineRegisterInfo &MRI)
	Constrain the (possibly generic) virtual register `Reg` to `RC`.
Static Public Attributes inherited from llvm::RegisterBankInfo
static const unsigned	DefaultMappingID = UINT_MAX
	Identifier used when the related instruction mapping instance is generated by target independent code.
static const unsigned	InvalidMappingID = UINT_MAX - 1
	Identifier used when the related instruction mapping instance is generated by the default constructor.
Protected Member Functions inherited from llvm::RegisterBankInfo
	RegisterBankInfo (const RegisterBank *RegBanks, unsigned NumRegBanks, const unsigned Sizes, unsigned HwMode)
	Create a RegisterBankInfo that can accommodate up to `NumRegBanks` RegisterBank instances.
	RegisterBankInfo ()
	This constructor is meaningless.
const RegisterBank &	getRegBank (unsigned ID)
	Get the register bank identified by `ID`.
const TargetRegisterClass *	getMinimalPhysRegClass (MCRegister Reg, const TargetRegisterInfo &TRI) const
	Get the MinimalPhysRegClass for Reg.
const InstructionMapping &	getInstrMappingImpl (const MachineInstr &MI) const
	Try to get the mapping of `MI`.
const PartialMapping &	getPartialMapping (unsigned StartIdx, unsigned Length, const RegisterBank &RegBank) const
	Get the uniquely generated PartialMapping for the given arguments.
const ValueMapping &	getValueMapping (unsigned StartIdx, unsigned Length, const RegisterBank &RegBank) const
	The most common ValueMapping consists of a single PartialMapping.
const ValueMapping &	getValueMapping (const PartialMapping *BreakDown, unsigned NumBreakDowns) const
	Get the ValueMapping for the given arguments.
template<typename Iterator>
const ValueMapping *	getOperandsMapping (Iterator Begin, Iterator End) const
	Get the uniquely generated array of ValueMapping for the elements of between `Begin` and `End`.
const ValueMapping *	getOperandsMapping (const SmallVectorImpl< const ValueMapping * > &OpdsMapping) const
	Get the uniquely generated array of ValueMapping for the elements of `OpdsMapping`.
const ValueMapping *	getOperandsMapping (std::initializer_list< const ValueMapping * > OpdsMapping) const
	Get the uniquely generated array of ValueMapping for the given arguments.
Protected Attributes inherited from llvm::RegisterBankInfo
const RegisterBank **	RegBanks
	Hold the set of supported register banks.
unsigned	NumRegBanks
	Total number of register banks.
const unsigned *	Sizes
	Hold the sizes of the register banks for all HwModes.
unsigned	HwMode
	Current HwMode for the target.
DenseMap< hash_code, std::unique_ptr< const PartialMapping > >	MapOfPartialMappings
	Keep dynamically allocated PartialMapping in a separate map.
DenseMap< hash_code, std::unique_ptr< const ValueMapping > >	MapOfValueMappings
	Keep dynamically allocated ValueMapping in a separate map.
DenseMap< hash_code, std::unique_ptr< ValueMapping[]> >	MapOfOperandsMappings
	Keep dynamically allocated array of ValueMapping in a separate map.
DenseMap< hash_code, std::unique_ptr< const InstructionMapping > >	MapOfInstructionMappings
	Keep dynamically allocated InstructionMapping in a separate map.
DenseMap< MCRegister, const TargetRegisterClass * >	PhysRegMinimalRCs
	Getting the minimal register class of a physreg is expensive.

Detailed Description

Definition at line 27 of file AArch64RegisterBankInfo.h.

Member Enumeration Documentation

◆ PartialMappingIdx

enum llvm::AArch64GenRegisterBankInfo::PartialMappingIdx

protected

Enumerator
PMI_None
PMI_FPR16
PMI_FPR32
PMI_FPR64
PMI_FPR128
PMI_FPR256
PMI_FPR512
PMI_GPR32
PMI_GPR64
PMI_GPR128
PMI_FirstGPR
PMI_LastGPR
PMI_FirstFPR
PMI_LastFPR
PMI_Min

Definition at line 29 of file AArch64RegisterBankInfo.h.

◆ ValueMappingIdx

enum llvm::AArch64GenRegisterBankInfo::ValueMappingIdx

protected

Enumerator
InvalidIdx
First3OpsIdx
Last3OpsIdx
DistanceBetweenRegBanks
FirstCrossRegCpyIdx
LastCrossRegCpyIdx
DistanceBetweenCrossRegCpy
FPExt16To32Idx
FPExt16To64Idx
FPExt32To64Idx
FPExt64To128Idx
Shift64Imm

Definition at line 51 of file AArch64RegisterBankInfo.h.

Member Function Documentation

◆ checkPartialMap()

bool llvm::AArch64GenRegisterBankInfo::checkPartialMap	(	unsigned	Idx,
		unsigned	ValStartIdx,
		unsigned	ValLength,
		const RegisterBank &	RB )

staticprotected

◆ checkPartialMappingIdx()

bool llvm::AArch64GenRegisterBankInfo::checkPartialMappingIdx	(	PartialMappingIdx	FirstAlias,
		PartialMappingIdx	LastAlias,
		ArrayRef< PartialMappingIdx >	Order )

staticprotected

Referenced by llvm::AArch64RegisterBankInfo::AArch64RegisterBankInfo().

◆ checkValueMapImpl()

bool llvm::AArch64GenRegisterBankInfo::checkValueMapImpl	(	unsigned	Idx,
		unsigned	FirstInBank,
		unsigned	Size,
		unsigned	Offset )

staticprotected

References llvm::Offset, and Size.

◆ getCopyMapping()

const RegisterBankInfo::ValueMapping * llvm::AArch64GenRegisterBankInfo::getCopyMapping	(	unsigned	DstBankID,
		unsigned	SrcBankID,
		TypeSize	Size )

staticprotected

Get the pointer to the ValueMapping of the operands of a copy instruction from the SrcBankID register bank to the DstBankID register bank with a size of Size.

References Size.

Referenced by llvm::AArch64RegisterBankInfo::getInstrAlternativeMappings(), and llvm::AArch64RegisterBankInfo::getInstrMapping().

◆ getFPExtMapping()

const RegisterBankInfo::ValueMapping * llvm::AArch64GenRegisterBankInfo::getFPExtMapping	(	unsigned	DstSize,
		unsigned	SrcSize )

staticprotected

Get the instruction mapping for G_FPEXT.

Precondition: (DstSize, SrcSize) pair is one of the following: (32, 16), (64, 16), (64, 32), (128, 64)

Returns: An InstructionMapping with statically allocated OperandsMapping.

Referenced by llvm::AArch64RegisterBankInfo::getInstrMapping().

◆ getRegBankBaseIdxOffset()

unsigned llvm::AArch64GenRegisterBankInfo::getRegBankBaseIdxOffset	(	unsigned	RBIdx,
		TypeSize	Size )

staticprotected

References Size.

◆ getValueMapping()

const RegisterBankInfo::ValueMapping * llvm::AArch64GenRegisterBankInfo::getValueMapping	(	PartialMappingIdx	RBIdx,
		TypeSize	Size )

staticprotected

Get the pointer to the ValueMapping representing the RegisterBank at RBIdx with a size of Size.

The returned mapping works for instructions with the same kind of operands for up to 3 operands.

Precondition: RBIdx != PartialMappingIdx::None

References Size.

Referenced by llvm::AArch64RegisterBankInfo::getInstrAlternativeMappings(), and llvm::AArch64RegisterBankInfo::getInstrMapping().

Member Data Documentation

◆ BankIDToCopyMapIdx

const PartialMappingIdx llvm::AArch64GenRegisterBankInfo::BankIDToCopyMapIdx[]

staticprotected

Definition at line 49 of file AArch64RegisterBankInfo.h.

◆ PartMappings

const RegisterBankInfo::PartialMapping llvm::AArch64GenRegisterBankInfo::PartMappings[]

staticprotected

Definition at line 47 of file AArch64RegisterBankInfo.h.

Referenced by llvm::AArch64RegisterBankInfo::getInstrMapping().

◆ ValMappings

const RegisterBankInfo::ValueMapping llvm::AArch64GenRegisterBankInfo::ValMappings[]

staticprotected

Definition at line 48 of file AArch64RegisterBankInfo.h.

Referenced by llvm::AArch64RegisterBankInfo::getInstrMapping().

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

lib/Target/AArch64/GISel/AArch64RegisterBankInfo.h

Protected Types

Static Protected Member Functions

Static Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ PartialMappingIdx

◆ ValueMappingIdx

Member Function Documentation

◆ checkPartialMap()

◆ checkPartialMappingIdx()

◆ checkValueMapImpl()

◆ getCopyMapping()

◆ getFPExtMapping()

◆ getRegBankBaseIdxOffset()

◆ getValueMapping()

Member Data Documentation

◆ BankIDToCopyMapIdx

◆ PartMappings

◆ ValMappings