Wrapper class representing physical registers. Should be passed by value. More...

#include "llvm/MC/MCRegister.h"

Public Member Functions
constexpr	MCRegister (unsigned Val=0)

constexpr bool	isPhysical () const
	Return true if the specified register number is in the physical register namespace.

constexpr	operator unsigned () const

constexpr unsigned	id () const

constexpr bool	isValid () const

constexpr bool	operator== (const MCRegister &Other) const
	Comparisons between register objects.

constexpr bool	operator!= (const MCRegister &Other) const

constexpr bool	operator== (unsigned Other) const
	Comparisons against register constants.

constexpr bool	operator!= (unsigned Other) const

constexpr bool	operator== (int Other) const

constexpr bool	operator!= (int Other) const

constexpr bool	operator== (MCPhysReg Other) const

constexpr bool	operator!= (MCPhysReg Other) const

Static Public Member Functions
static constexpr bool	isStackSlot (unsigned Reg)
	This is the portion of the positive number space that is not a physical register.

static constexpr bool	isPhysicalRegister (unsigned Reg)
	Return true if the specified register number is in the physical register namespace.

static MCRegister	from (unsigned Val)
	Check the provided unsigned value is a valid MCRegister.

Static Public Attributes
static constexpr unsigned	NoRegister = 0u

static constexpr unsigned	FirstPhysicalReg = 1u

static constexpr unsigned	FirstStackSlot = 1u << 30

static constexpr unsigned	VirtualRegFlag = 1u << 31

Friends
hash_code	hash_value (const MCRegister &)

Detailed Description

Wrapper class representing physical registers. Should be passed by value.

Definition at line 33 of file MCRegister.h.

Constructor & Destructor Documentation

◆ MCRegister()

constexpr llvm::MCRegister::MCRegister ( unsigned Val = 0 )

inlineconstexpr

Definition at line 38 of file MCRegister.h.

Member Function Documentation

◆ from()

static MCRegister llvm::MCRegister::from ( unsigned Val )

inlinestatic

Check the provided unsigned value is a valid MCRegister.

Definition at line 78 of file MCRegister.h.

References assert(), isPhysicalRegister(), and NoRegister.

Referenced by llvm::SystemZInstrInfo::foldMemoryOperandImpl(), llvm::MCRegisterInfo::getLLVMRegNum(), llvm::rdf::PhysicalRegisterInfo::PhysicalRegisterInfo(), rematerializeCheapDef(), and llvm::SIRegisterInfo::SIRegisterInfo().

◆ id()

constexpr unsigned llvm::MCRegister::id ( ) const

inlineconstexpr

Definition at line 83 of file MCRegister.h.

Referenced by addOps(), llvm::RegAllocEvictionAdvisor::canAllocatePhysReg(), llvm::MachineRegisterInfo::canReserveReg(), llvm::LiveRegMatrix::checkRegMaskInterference(), llvm::MachineOperand::clobbersPhysReg(), llvm::NVPTXRegisterInfo::getDwarfRegNum(), llvm::DenseMapInfo< MCRegister >::getHashValue(), llvm::getXRegFromXRegTuple(), llvm::TargetRegisterInfo::isCalleeSavedPhysReg(), llvm::MachineRegisterInfo::isPhysRegModified(), llvm::MachineRegisterInfo::isPhysRegUsed(), llvm::MachineRegisterInfo::isReserved(), and llvm::X86II::needSIB().

◆ isPhysical()

constexpr bool llvm::MCRegister::isPhysical ( ) const

inlineconstexpr

Return true if the specified register number is in the physical register namespace.

Definition at line 73 of file MCRegister.h.

References isPhysicalRegister().

Referenced by llvm::MachineBasicBlock::addLiveIn(), llvm::VirtRegMap::assignVirt2Phys(), llvm::MachineOperand::clobbersPhysReg(), getCommonMinimalPhysRegClass(), llvm::NVPTXRegisterInfo::getDwarfRegNum(), llvm::TargetRegisterInfo::isCalleeSavedPhysReg(), llvm::PPCRegisterInfo::isCallerPreservedPhysReg(), llvm::MachineRegisterInfo::isConstantPhysReg(), and llvm::AMDGPULegalizerInfo::loadInputValue().

◆ isPhysicalRegister()

static constexpr bool llvm::MCRegister::isPhysicalRegister ( unsigned Reg )

inlinestaticconstexpr

Return true if the specified register number is in the physical register namespace.

Definition at line 67 of file MCRegister.h.

References FirstPhysicalReg, and FirstStackSlot.

Referenced by from(), isPhysical(), and llvm::Register::isPhysicalRegister().

◆ isStackSlot()

static constexpr bool llvm::MCRegister::isStackSlot ( unsigned Reg )

inlinestaticconstexpr

This is the portion of the positive number space that is not a physical register.

StackSlot values do not exist in the MC layer, see Register::isStackSlot() for the more information on them.

Definition at line 61 of file MCRegister.h.

References FirstStackSlot, and VirtualRegFlag.

Referenced by llvm::Register::isStack(), and llvm::Register::isStackSlot().

◆ isValid()

constexpr bool llvm::MCRegister::isValid ( ) const

inlineconstexpr

Definition at line 85 of file MCRegister.h.

References NoRegister.

Referenced by llvm::MachineOperand::clobbersPhysReg(), llvm::VirtRegMap::hasPhys(), llvm::InterferenceCache::Cursor::setPhysReg(), and llvm::AArch64InstrInfo::storeRegToStackSlot().

constexpr bool llvm::MCRegister::operator== ( const MCRegister & Other ) const

inlineconstexpr

Comparisons between register objects.

Definition at line 88 of file MCRegister.h.

References llvm::Other.

◆ operator==() [2/4]

constexpr bool llvm::MCRegister::operator== ( int Other ) const

inlineconstexpr

Definition at line 100 of file MCRegister.h.

References llvm::Other.

◆ operator==() [3/4]

constexpr bool llvm::MCRegister::operator== ( MCPhysReg Other ) const

inlineconstexpr

Definition at line 103 of file MCRegister.h.

References llvm::Other.

◆ operator==() [4/4]

constexpr bool llvm::MCRegister::operator== ( unsigned Other ) const

inlineconstexpr

Comparisons against register constants.

E.g.

R == AArch64::WZR
R == 0

Definition at line 98 of file MCRegister.h.

References llvm::Other.

Friends And Related Function Documentation

◆ hash_value

hash_code hash_value ( const MCRegister & Reg )

friend

Definition at line 127 of file MCRegister.h.

Member Data Documentation

◆ FirstPhysicalReg

constexpr unsigned llvm::MCRegister::FirstPhysicalReg = 1u

staticconstexpr

Definition at line 53 of file MCRegister.h.

Referenced by isPhysicalRegister().

◆ FirstStackSlot

constexpr unsigned llvm::MCRegister::FirstStackSlot = 1u << 30

staticconstexpr

Definition at line 54 of file MCRegister.h.

Referenced by llvm::Register::index2StackSlot(), isPhysicalRegister(), isStackSlot(), and llvm::Register::stackSlot2Index().

◆ NoRegister

constexpr unsigned llvm::MCRegister::NoRegister = 0u

staticconstexpr

Definition at line 52 of file MCRegister.h.

Referenced by from(), llvm::LiveRegMatrix::getOneVReg(), llvm::X86RegisterInfo::getRegAllocationHints(), llvm::TargetLoweringObjectFile::getStaticBase(), isCandidate(), llvm::Register::isValid(), isValid(), llvm::AArch64InstrInfo::loadRegFromStackSlot(), shouldUseFormStridedPseudo(), and llvm::AArch64InstrInfo::storeRegToStackSlot().

◆ VirtualRegFlag

constexpr unsigned llvm::MCRegister::VirtualRegFlag = 1u << 31

staticconstexpr

Definition at line 55 of file MCRegister.h.

Referenced by llvm::Register::index2VirtReg(), isStackSlot(), llvm::Register::isVirtualRegister(), and llvm::rdf::RegisterRef::toUnitId().

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

include/llvm/MC/MCRegister.h

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ MCRegister()

Member Function Documentation

◆ from()

◆ id()

◆ isPhysical()

◆ isPhysicalRegister()

◆ isStackSlot()

◆ isValid()

◆ operator unsigned()

◆ operator!=() [1/4]

◆ operator!=() [2/4]

◆ operator!=() [3/4]

◆ operator!=() [4/4]

◆ operator==() [1/4]

◆ operator==() [2/4]

◆ operator==() [3/4]

◆ operator==() [4/4]

Friends And Related Function Documentation

◆ hash_value

Member Data Documentation

◆ FirstPhysicalReg

◆ FirstStackSlot

◆ NoRegister

◆ VirtualRegFlag