LLVM 22.0.0git
Public Member Functions | Static Public Member Functions | Static Public Attributes | Friends | List of all members
llvm::MCRegister Class Reference

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 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 LastPhysicalReg = (1u << 30) - 1

Friends

hash_code hash_value (const MCRegister &Reg)

Detailed Description

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

Definition at line 33 of file MCRegister.h.

Constructor & Destructor Documentation

◆ MCRegister()

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

Definition at line 38 of file MCRegister.h.

Referenced by from(), hash_value, operator!=(), and operator==().

Member Function Documentation

◆ from()

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

Check the provided unsigned value is a valid MCRegister.

Definition at line 69 of file MCRegister.h.

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

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

◆ id()

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

Definition at line 74 of file MCRegister.h.

Referenced by addOps(), llvm::AggressiveAntiDepBreaker::BreakAntiDependencies(), llvm::CriticalAntiDepBreaker::BreakAntiDependencies(), llvm::RegAllocEvictionAdvisor::canAllocatePhysReg(), llvm::MachineRegisterInfo::canReserveReg(), llvm::LiveRegMatrix::checkRegMaskInterference(), llvm::MachineOperand::clobbersPhysReg(), llvm::mca::InstrBuilder::createInstruction(), llvm::NVPTXRegisterInfo::getDwarfRegNum(), llvm::DenseMapInfo< MCRegister >::getHashValue(), getLibCallID(), getRegisterForMxtrC0(), getRegisterForMxtrDSP(), getRegisterForMxtrFP(), llvm::getXRegFromXRegTuple(), llvm::TargetRegisterInfo::isCalleeSavedPhysReg(), llvm::ARMBaseRegisterInfo::isInlineAsmReadOnlyReg(), llvm::MachineRegisterInfo::isPhysRegModified(), llvm::MachineRegisterInfo::isPhysRegUsed(), llvm::MachineRegisterInfo::isReserved(), llvm::PPCInstPrinter::printcrbitm(), and llvm::CalleeSavedInfo::setDstReg().

◆ isPhysical()

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

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

Definition at line 64 of file MCRegister.h.

References isPhysicalRegister().

Referenced by llvm::MachineBasicBlock::addLiveIn(), llvm::VirtRegMap::assignVirt2Phys(), llvm::AMDGPULegalizerInfo::buildLoadInputValue(), llvm::MachineOperand::clobbersPhysReg(), getCommonMinimalPhysRegClass(), llvm::TargetRegisterInfo::isCalleeSavedPhysReg(), llvm::PPCRegisterInfo::isCallerPreservedPhysReg(), llvm::MachineRegisterInfo::isConstantPhysReg(), and llvm::HexagonFrameLowering::processFunctionBeforeFrameFinalized().

◆ isPhysicalRegister()

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

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

Definition at line 58 of file MCRegister.h.

References FirstPhysicalReg, and LastPhysicalReg.

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

◆ isValid()

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

Definition at line 76 of file MCRegister.h.

References NoRegister.

Referenced by addOpsFromMDNode(), llvm::MachineOperand::clobbersPhysReg(), llvm::AArch64InstrInfo::copyPhysReg(), llvm::VirtRegMap::hasPhys(), llvm::SPIRVMCInstLower::lower(), llvm::HexagonFrameLowering::processFunctionBeforeFrameFinalized(), llvm::InterferenceCache::Cursor::setPhysReg(), and llvm::AArch64InstrInfo::storeRegToStackSlot().

◆ operator unsigned()

llvm::MCRegister::operator unsigned ( ) const
inlineconstexpr

Definition at line 66 of file MCRegister.h.

◆ operator!=() [1/4]

bool llvm::MCRegister::operator!= ( const MCRegister & Other) const
inlineconstexpr

Definition at line 82 of file MCRegister.h.

References MCRegister(), and llvm::Other.

◆ operator!=() [2/4]

bool llvm::MCRegister::operator!= ( int Other) const
inlineconstexpr

Definition at line 92 of file MCRegister.h.

References llvm::Other.

◆ operator!=() [3/4]

bool llvm::MCRegister::operator!= ( MCPhysReg Other) const
inlineconstexpr

Definition at line 97 of file MCRegister.h.

References llvm::Other.

◆ operator!=() [4/4]

bool llvm::MCRegister::operator!= ( unsigned Other) const
inlineconstexpr

Definition at line 90 of file MCRegister.h.

References llvm::Other.

◆ operator==() [1/4]

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

Comparisons between register objects.

Definition at line 79 of file MCRegister.h.

References MCRegister(), and llvm::Other.

◆ operator==() [2/4]

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

Definition at line 91 of file MCRegister.h.

References llvm::Other.

◆ operator==() [3/4]

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

Definition at line 94 of file MCRegister.h.

References llvm::Other.

◆ operator==() [4/4]

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

Comparisons against register constants.

E.g.

  • R == AArch64::WZR
  • R == 0

Definition at line 89 of file MCRegister.h.

References llvm::Other.

◆ hash_value

hash_code hash_value ( const MCRegister & Reg)
friend

Definition at line 118 of file MCRegister.h.

References llvm::hash_value(), and MCRegister().

Member Data Documentation

◆ FirstPhysicalReg

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

Definition at line 53 of file MCRegister.h.

Referenced by isPhysicalRegister().

◆ LastPhysicalReg

unsigned llvm::MCRegister::LastPhysicalReg = (1u << 30) - 1
staticconstexpr

Definition at line 54 of file MCRegister.h.

Referenced by isPhysicalRegister().

◆ NoRegister

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(), isValid(), llvm::Register::isValid(), llvm::AArch64InstrInfo::loadRegFromStackSlot(), and llvm::AArch64InstrInfo::storeRegToStackSlot().

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