llvm::MCRegisterClass Class Reference

MCRegisterClass - Base class of TargetRegisterClass. More...

#include "llvm/MC/MCRegisterInfo.h"

Public Types
using	iterator = const MCPhysReg *
using	const_iterator = const MCPhysReg *

Public Member Functions
unsigned	getID () const
	getID() - Return the register class ID number.
iterator	begin () const
	begin/end - Return all of the registers in this class.
iterator	end () const
unsigned	getNumRegs () const
	getNumRegs - Return the number of registers in this class.
unsigned	getRegister (unsigned i) const
	getRegister - Return the specified register in the class.
bool	contains (MCRegister Reg) const
	contains - Return true if the specified register is included in this register class.
bool	contains (MCRegister Reg1, MCRegister Reg2) const
	contains - Return true if both registers are in this class.
unsigned	getSizeInBits () const
	Return the size of the physical register in bits if we are able to determine it.
int	getCopyCost () const
	getCopyCost - Return the cost of copying a value between two registers in this class.
bool	isAllocatable () const
	isAllocatable - Return true if this register class may be used to create virtual registers.
bool	isBaseClass () const
	Return true if this register class has a defined BaseClassOrder.

Public Attributes
const iterator	RegsBegin
const uint8_t *const	RegSet
const uint32_t	NameIdx
const uint16_t	RegsSize
const uint16_t	RegSetSize
const uint16_t	ID
const uint16_t	RegSizeInBits
const int8_t	CopyCost
const bool	Allocatable
const bool	BaseClass

Detailed Description

MCRegisterClass - Base class of TargetRegisterClass.

Definition at line 35 of file MCRegisterInfo.h.

Member Typedef Documentation

const_iterator

using llvm::MCRegisterClass::const_iterator = const MCPhysReg*

Definition at line 38 of file MCRegisterInfo.h.

iterator

using llvm::MCRegisterClass::iterator = const MCPhysReg*

Definition at line 37 of file MCRegisterInfo.h.

Member Function Documentation

begin()

iterator llvm::MCRegisterClass::begin ( ) const

inline

begin/end - Return all of the registers in this class.

Definition at line 57 of file MCRegisterInfo.h.

References RegsBegin.

Referenced by llvm::TargetRegisterClass::begin().

contains() [1/2]

bool llvm::MCRegisterClass::contains ( MCRegister  Reg ) const

inline

contains - Return true if the specified register is included in this register class.

This does not include virtual registers.

Definition at line 73 of file MCRegisterInfo.h.

References Reg, RegSet, and RegSetSize.

Referenced by llvm::X86_MC::X86MCInstrAnalysis::clearsSuperRegisters(), contains(), llvm::TargetRegisterClass::contains(), llvm::AMDGPUDisassembler::convertTrue16OpSel(), llvm::MCRegisterInfo::getMatchingSuperReg(), IsAGPROperand(), isMemOperand(), llvm::AMDGPU::isSGPR(), llvm::ARMInstPrinter::printInst(), llvm::AArch64InstPrinter::printRangePrefetchAlias(), llvm::VEInstPrinter::printRegName(), llvm::AArch64InstPrinter::printVectorList(), and llvm::MipsRegInfoRecord::SetPhysRegUsed().

contains() [2/2]

bool llvm::MCRegisterClass::contains ( MCRegister  Reg1, MCRegister  Reg2  ) const

inline

contains - Return true if both registers are in this class.

Definition at line 83 of file MCRegisterInfo.h.

References contains().

end()

iterator llvm::MCRegisterClass::end ( ) const

inline

Definition at line 58 of file MCRegisterInfo.h.

References RegsBegin, and RegsSize.

Referenced by llvm::TargetRegisterClass::end().

getCopyCost()

int llvm::MCRegisterClass::getCopyCost ( ) const

inline

getCopyCost - Return the cost of copying a value between two registers in this class.

A negative number means the register class is very expensive to copy e.g. status flag register classes.

Definition at line 96 of file MCRegisterInfo.h.

References CopyCost.

Referenced by llvm::TargetRegisterClass::getCopyCost().

getID()

unsigned llvm::MCRegisterClass::getID ( ) const

inline

getID() - Return the register class ID number.

Definition at line 53 of file MCRegisterInfo.h.

References ID.

Referenced by llvm::TargetRegisterClass::getID(), and llvm::AMDGPU::getRegBitWidth().

getNumRegs()

unsigned llvm::MCRegisterClass::getNumRegs ( ) const

inline

getNumRegs - Return the number of registers in this class.

Definition at line 62 of file MCRegisterInfo.h.

References RegsSize.

Referenced by llvm::TargetRegisterClass::getNumRegs(), and getRegister().

getRegister()

unsigned llvm::MCRegisterClass::getRegister ( unsigned  i ) const

inline

getRegister - Return the specified register in the class.

Definition at line 66 of file MCRegisterInfo.h.

References assert(), getNumRegs(), and RegsBegin.

Referenced by llvm::AMDGPUDisassembler::convertTrue16OpSel(), and llvm::TargetRegisterClass::getRegister().

getSizeInBits()

unsigned llvm::MCRegisterClass::getSizeInBits ( ) const

inline

Return the size of the physical register in bits if we are able to determine it.

This always returns zero for registers of targets that use HW modes, as we need more information to determine the size of registers in such cases. Use TargetRegisterInfo to cover them.

Definition at line 91 of file MCRegisterInfo.h.

References RegSizeInBits.

isAllocatable()

bool llvm::MCRegisterClass::isAllocatable ( ) const

inline

isAllocatable - Return true if this register class may be used to create virtual registers.

Definition at line 100 of file MCRegisterInfo.h.

References Allocatable.

Referenced by llvm::TargetRegisterClass::isAllocatable().

isBaseClass()

bool llvm::MCRegisterClass::isBaseClass ( ) const

inline

Return true if this register class has a defined BaseClassOrder.

Definition at line 103 of file MCRegisterInfo.h.

References BaseClass.

Referenced by llvm::TargetRegisterClass::isBaseClass().

Member Data Documentation

Allocatable

const bool llvm::MCRegisterClass::Allocatable

Definition at line 48 of file MCRegisterInfo.h.

Referenced by isAllocatable().

BaseClass

const bool llvm::MCRegisterClass::BaseClass

Definition at line 49 of file MCRegisterInfo.h.

Referenced by isBaseClass().

CopyCost

const int8_t llvm::MCRegisterClass::CopyCost

Definition at line 47 of file MCRegisterInfo.h.

Referenced by getCopyCost().

ID

const uint16_t llvm::MCRegisterClass::ID

Definition at line 45 of file MCRegisterInfo.h.

Referenced by getID().

NameIdx

const uint32_t llvm::MCRegisterClass::NameIdx

Definition at line 42 of file MCRegisterInfo.h.

RegsBegin

const iterator llvm::MCRegisterClass::RegsBegin

Definition at line 40 of file MCRegisterInfo.h.

Referenced by begin(), end(), and getRegister().

RegSet

const uint8_t* const llvm::MCRegisterClass::RegSet

Definition at line 41 of file MCRegisterInfo.h.

Referenced by contains().

RegSetSize

const uint16_t llvm::MCRegisterClass::RegSetSize

Definition at line 44 of file MCRegisterInfo.h.

Referenced by contains().

RegSizeInBits

const uint16_t llvm::MCRegisterClass::RegSizeInBits

Definition at line 46 of file MCRegisterInfo.h.

Referenced by getSizeInBits().

RegsSize

const uint16_t llvm::MCRegisterClass::RegsSize

Definition at line 43 of file MCRegisterInfo.h.

Referenced by end(), and getNumRegs().

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

• include/llvm/MC/MCRegisterInfo.h