v8::internal::CPURegister Struct Reference

#include <assembler-arm64.h>

Inheritance diagram for v8::internal::CPURegister:

Collaboration diagram for v8::internal::CPURegister:

Public Types
enum	RegisterType { kInvalid = 0 , kRegister , kFPRegister , kNoRegister }

Public Member Functions
unsigned	code () const
RegisterType	type () const
RegList	Bit () const
unsigned	SizeInBits () const
int	SizeInBytes () const
bool	Is32Bits () const
bool	Is64Bits () const
bool	IsValid () const
bool	IsValidOrNone () const
bool	IsValidRegister () const
bool	IsValidFPRegister () const
bool	IsNone () const
bool	Is (const CPURegister &other) const
bool	Aliases (const CPURegister &other) const
bool	IsZero () const
bool	IsSP () const
bool	IsRegister () const
bool	IsFPRegister () const
Register	X () const
Register	W () const
FPRegister	D () const
FPRegister	S () const
bool	IsSameSizeAndType (const CPURegister &other) const
bool	is (const CPURegister &other) const
bool	is_valid () const

Static Public Member Functions
static CPURegister	Create (unsigned code, unsigned size, RegisterType type)

Public Attributes
unsigned	reg_code
unsigned	reg_size
RegisterType	reg_type

Detailed Description

Definition at line 41 of file assembler-arm64.h.

Member Enumeration Documentation

RegisterType

enum v8::internal::CPURegister::RegisterType

Enumerator
kInvalid
kRegister
kFPRegister
kNoRegister

Definition at line 42 of file assembler-arm64.h.

                    {
    // The kInvalid value is used to detect uninitialized static instances,
    // which are always zero-initialized before any constructors are called.
    kInvalid = 0,
    kRegister,
    kFPRegister,
    kNoRegister
  };

Member Function Documentation

Aliases()

bool v8::internal::CPURegister::Aliases ( const CPURegister &  other ) const

inline

Definition at line 122 of file assembler-arm64-inl.h.

                                                               {
  DCHECK(IsValidOrNone() && other.IsValidOrNone());
  return (reg_code == other.reg_code) && (reg_type == other.reg_type);
}

References DCHECK, IsValidOrNone(), reg_code, and reg_type.

Referenced by Is().

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Bit()

RegList v8::internal::CPURegister::Bit ( ) const

inline

Definition at line 51 of file assembler-arm64-inl.h.

                                      {
  DCHECK(reg_code < (sizeof(RegList) * kBitsPerByte));
  return IsValid() ? 1UL << reg_code : 0;
}

References DCHECK, IsValid(), v8::internal::kBitsPerByte, and reg_code.

Referenced by v8::internal::CPURegList::IncludesAliasOf(), and v8::internal::FPRegister::IsAllocatable().

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code()

unsigned v8::internal::CPURegister::code ( ) const

inline

Definition at line 39 of file assembler-arm64-inl.h.

                                        {
  DCHECK(IsValid());
  return reg_code;
}

References DCHECK, IsValid(), and reg_code.

Referenced by v8::internal::CPURegList::Combine(), v8::internal::FPRegister::Create(), Create(), v8::internal::FPRegister::DRegFromCode(), v8::internal::FPRegister::from_code(), v8::internal::Assembler::Ra(), v8::internal::Assembler::Rd(), v8::internal::CPURegList::Remove(), v8::internal::Assembler::Rm(), v8::internal::Assembler::Rn(), v8::internal::Assembler::Rt(), v8::internal::Assembler::Rt2(), v8::internal::FPRegister::SRegFromCode(), and v8::internal::FPRegister::ToAllocationIndex().

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Create()

static CPURegister v8::internal::CPURegister::Create ( unsigned  code, unsigned  size, RegisterType  type  )

inlinestatic

Definition at line 51 of file assembler-arm64.h.

                                                                             {
    CPURegister r = {code, size, type};
    return r;
  }

References code(), size, and type().

Referenced by v8::internal::CPURegList::Combine(), v8::internal::Register::Create(), v8::internal::FPRegister::Create(), and v8::internal::CPURegList::Remove().

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D()

FPRegister v8::internal::CPURegister::D ( ) const

inline

Definition at line 258 of file assembler-arm64-inl.h.

                                       {
  DCHECK(IsValidFPRegister());
  return FPRegister::DRegFromCode(reg_code);
}

References DCHECK, v8::internal::FPRegister::DRegFromCode(), IsValidFPRegister(), and reg_code.

Referenced by v8::internal::UseScratchRegisterScope::AcquireD().

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Is()

bool v8::internal::CPURegister::Is ( const CPURegister &  other ) const

inline

Definition at line 116 of file assembler-arm64-inl.h.

                                                          {
  DCHECK(IsValidOrNone() && other.IsValidOrNone());
  return Aliases(other) && (reg_size == other.reg_size);
}

References Aliases(), DCHECK, IsValidOrNone(), and reg_size.

Referenced by v8::internal::LCodeGen::CallKnownFunction(), v8::internal::LCodeGen::DoDeferredInstanceOfKnownGlobal(), v8::internal::MacroAssembler::Fmov(), is(), v8::internal::Operand::IsImmediate(), v8::internal::MemOperand::IsImmediateOffset(), v8::internal::MemOperand::IsRegisterOffset(), v8::internal::BASE_EMBEDDED< Visitor >::IsScratchRegister(), and v8::internal::MacroAssembler::Mov().

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is()

bool v8::internal::CPURegister::is ( const CPURegister &  other ) const

inline

Definition at line 85 of file assembler-arm64.h.

{ return Is(other); }

References Is().

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Is32Bits()

bool v8::internal::CPURegister::Is32Bits ( ) const

inline

Definition at line 70 of file assembler-arm64-inl.h.

                                        {
  DCHECK(IsValid());
  return reg_size == 32;
}

References DCHECK, IsValid(), and reg_size.

Referenced by v8::internal::MacroAssembler::Fmov(), v8::internal::Operand::Operand(), v8::internal::MacroAssembler::SmiUntagToFloat(), and v8::internal::MacroAssembler::TryRepresentDoubleAsInt32().

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Is64Bits()

bool v8::internal::CPURegister::Is64Bits ( ) const

inline

Definition at line 76 of file assembler-arm64-inl.h.

                                        {
  DCHECK(IsValid());
  return reg_size == 64;
}

References DCHECK, IsValid(), and reg_size.

Referenced by v8::internal::Assembler::AppropriateZeroRegFor(), v8::internal::MacroAssembler::CmovX(), v8::internal::MacroAssembler::CzeroX(), v8::internal::LCodeGen::DeoptimizeIfNegative(), v8::internal::MacroAssembler::Fmov(), v8::internal::Assembler::FPType(), v8::internal::MacroAssembler::Ldr(), v8::internal::Assembler::LoadLiteralOpFor(), v8::internal::Assembler::LoadOpFor(), v8::internal::Assembler::LoadPairNonTemporalOpFor(), v8::internal::Assembler::LoadPairOpFor(), v8::internal::MemOperand::MemOperand(), v8::internal::MacroAssembler::Mov(), v8::internal::Operand::Operand(), v8::internal::RecordWriteStub::RecordWriteStub(), v8::internal::Assembler::SF(), v8::internal::MacroAssembler::SmiTag(), v8::internal::MacroAssembler::SmiUntag(), v8::internal::MacroAssembler::SmiUntagToDouble(), v8::internal::MacroAssembler::SmiUntagToFloat(), v8::internal::Assembler::StoreOpFor(), v8::internal::Assembler::StorePairNonTemporalOpFor(), v8::internal::Assembler::StorePairOpFor(), v8::internal::Operand::ToExtendedRegister(), v8::internal::MacroAssembler::TryRepresentDoubleAsInt64(), v8::internal::Operand::UntagSmi(), and v8::internal::Operand::UntagSmiAndScale().

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is_valid()

bool v8::internal::CPURegister::is_valid ( ) const

inline

Definition at line 86 of file assembler-arm64.h.

{ return IsValid(); }

References IsValid().

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IsFPRegister()

bool v8::internal::CPURegister::IsFPRegister ( ) const

inline

Definition at line 133 of file assembler-arm64-inl.h.

                                            {
  return reg_type == kFPRegister;
}

References kFPRegister, and reg_type.

Referenced by v8::internal::FPRegister::IsValid(), IsValidFPRegister(), v8::internal::Assembler::LoadLiteralOpFor(), v8::internal::Assembler::LoadOpFor(), v8::internal::Assembler::LoadPairNonTemporalOpFor(), v8::internal::Assembler::LoadPairOpFor(), v8::internal::Assembler::StoreOpFor(), v8::internal::Assembler::StorePairNonTemporalOpFor(), and v8::internal::Assembler::StorePairOpFor().

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IsNone()

bool v8::internal::CPURegister::IsNone ( ) const

inline

Definition at line 107 of file assembler-arm64-inl.h.

                                      {
  // kNoRegister types should always have size 0 and code 0.
  DCHECK((reg_type != kNoRegister) || (reg_code == 0));
  DCHECK((reg_type != kNoRegister) || (reg_size == 0));
 
  return reg_type == kNoRegister;
}

References DCHECK, kNoRegister, reg_code, reg_size, and reg_type.

Referenced by v8::internal::LCodeGen::CallKnownFunction(), v8::internal::CPURegList::IncludesAliasOf(), IsValid(), v8::internal::Register::IsValid(), v8::internal::FPRegister::IsValid(), IsValidOrNone(), and v8::internal::CPURegList::Remove().

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IsRegister()

bool v8::internal::CPURegister::IsRegister ( ) const

inline

Definition at line 128 of file assembler-arm64-inl.h.

                                          {
  return reg_type == kRegister;
}

References kRegister, and reg_type.

Referenced by IsSP(), v8::internal::Register::IsValid(), IsValidRegister(), IsZero(), v8::internal::Assembler::LoadLiteralOpFor(), v8::internal::Assembler::LoadOpFor(), v8::internal::Assembler::LoadPairNonTemporalOpFor(), v8::internal::Assembler::LoadPairOpFor(), v8::internal::Assembler::StoreOpFor(), v8::internal::Assembler::StorePairNonTemporalOpFor(), and v8::internal::Assembler::StorePairOpFor().

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IsSameSizeAndType()

bool v8::internal::CPURegister::IsSameSizeAndType ( const CPURegister &  other ) const

inline

Definition at line 138 of file assembler-arm64-inl.h.

                                                                         {
  return (reg_size == other.reg_size) && (reg_type == other.reg_type);
}

References reg_size, and reg_type.

IsSP()

bool v8::internal::CPURegister::IsSP ( ) const

inline

Definition at line 154 of file assembler-arm64-inl.h.

                                    {
  DCHECK(IsValid());
  return IsRegister() && (reg_code == kSPRegInternalCode);
}

References DCHECK, IsRegister(), IsValid(), v8::internal::kSPRegInternalCode, and reg_code.

Referenced by v8::internal::MacroAssembler::CmovX(), v8::internal::MacroAssembler::CzeroX(), v8::internal::MemOperand::MemOperand(), and v8::internal::Operand::Operand().

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IsValid()

bool v8::internal::CPURegister::IsValid ( ) const

inline

Definition at line 82 of file assembler-arm64-inl.h.

                                       {
  if (IsValidRegister() || IsValidFPRegister()) {
    DCHECK(!IsNone());
    return true;
  } else {
    DCHECK(IsNone());
    return false;
  }
}

References DCHECK, IsNone(), IsValidFPRegister(), and IsValidRegister().

Referenced by Bit(), code(), Is32Bits(), Is64Bits(), is_valid(), IsSP(), IsValidOrNone(), IsZero(), v8::internal::Assembler::LoadOpFor(), SizeInBits(), SizeInBytes(), and v8::internal::Assembler::StoreOpFor().

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IsValidFPRegister()

bool v8::internal::CPURegister::IsValidFPRegister ( ) const

inline

Definition at line 100 of file assembler-arm64-inl.h.

                                                 {
  return IsFPRegister() &&
         ((reg_size == kSRegSizeInBits) || (reg_size == kDRegSizeInBits)) &&
         (reg_code < kNumberOfFPRegisters);
}

References IsFPRegister(), v8::internal::kDRegSizeInBits, v8::internal::kNumberOfFPRegisters, v8::internal::kSRegSizeInBits, reg_code, and reg_size.

Referenced by D(), IsValid(), v8::internal::FPRegister::IsValid(), and S().

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IsValidOrNone()

bool v8::internal::CPURegister::IsValidOrNone ( ) const

inline

Definition at line 143 of file assembler-arm64-inl.h.

                                             {
  return IsValid() || IsNone();
}

References IsNone(), and IsValid().

Referenced by Aliases(), v8::internal::FPRegister::FPRegister(), Is(), v8::internal::Register::Register(), and type().

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IsValidRegister()

bool v8::internal::CPURegister::IsValidRegister ( ) const

inline

Definition at line 93 of file assembler-arm64-inl.h.

                                               {
  return IsRegister() &&
         ((reg_size == kWRegSizeInBits) || (reg_size == kXRegSizeInBits)) &&
         ((reg_code < kNumberOfRegisters) || (reg_code == kSPRegInternalCode));
}

References IsRegister(), v8::internal::kNumberOfRegisters, v8::internal::kSPRegInternalCode, v8::internal::kWRegSizeInBits, v8::internal::kXRegSizeInBits, reg_code, and reg_size.

Referenced by IsValid(), v8::internal::Register::IsValid(), W(), and X().

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IsZero()

bool v8::internal::CPURegister::IsZero ( ) const

inline

Definition at line 148 of file assembler-arm64-inl.h.

                                      {
  DCHECK(IsValid());
  return IsRegister() && (reg_code == kZeroRegCode);
}

References DCHECK, IsRegister(), IsValid(), v8::internal::kZeroRegCode, and reg_code.

Referenced by v8::internal::MacroAssembler::Adc(), v8::internal::MacroAssembler::Adcs(), v8::internal::MacroAssembler::And(), v8::internal::MacroAssembler::Ands(), v8::internal::MacroAssembler::Asr(), v8::internal::MacroAssembler::Bfi(), v8::internal::MacroAssembler::Bfxil(), v8::internal::MacroAssembler::Bic(), v8::internal::MacroAssembler::Bics(), v8::internal::MacroAssembler::Blr(), v8::internal::MacroAssembler::Br(), v8::internal::MacroAssembler::Cinc(), v8::internal::MacroAssembler::Cinv(), v8::internal::MacroAssembler::Cls(), v8::internal::MacroAssembler::Clz(), v8::internal::MacroAssembler::Cneg(), v8::internal::MacroAssembler::Cset(), v8::internal::MacroAssembler::Csetm(), v8::internal::MacroAssembler::Csinc(), v8::internal::MacroAssembler::Csinv(), v8::internal::MacroAssembler::Csneg(), v8::internal::MacroAssembler::Eon(), v8::internal::MacroAssembler::Eor(), v8::internal::MacroAssembler::Extr(), v8::internal::MacroAssembler::Fcvtas(), v8::internal::MacroAssembler::Fcvtau(), v8::internal::MacroAssembler::Fcvtms(), v8::internal::MacroAssembler::Fcvtmu(), v8::internal::MacroAssembler::Fcvtns(), v8::internal::MacroAssembler::Fcvtnu(), v8::internal::MacroAssembler::Fcvtzs(), v8::internal::MacroAssembler::Fcvtzu(), v8::internal::MacroAssembler::Fmov(), v8::internal::Operand::IsZero(), v8::internal::MacroAssembler::Lsl(), v8::internal::MacroAssembler::Lsr(), v8::internal::MacroAssembler::Madd(), v8::internal::MemOperand::MemOperand(), v8::internal::MacroAssembler::Mneg(), v8::internal::MacroAssembler::Mov(), v8::internal::MacroAssembler::Movk(), v8::internal::MacroAssembler::Mrs(), v8::internal::MacroAssembler::Msub(), v8::internal::MacroAssembler::Mul(), v8::internal::MacroAssembler::Mvn(), v8::internal::MacroAssembler::Neg(), v8::internal::MacroAssembler::Ngc(), v8::internal::MacroAssembler::Ngcs(), v8::internal::MacroAssembler::Orn(), v8::internal::MacroAssembler::Orr(), v8::internal::MacroAssembler::Rbit(), v8::internal::Assembler::RdSP(), v8::internal::MacroAssembler::Ret(), v8::internal::MacroAssembler::Rev(), v8::internal::MacroAssembler::Rev16(), v8::internal::MacroAssembler::Rev32(), v8::internal::Assembler::RnSP(), v8::internal::MacroAssembler::Ror(), v8::internal::MacroAssembler::Sbc(), v8::internal::MacroAssembler::Sbcs(), v8::internal::MacroAssembler::Sbfiz(), v8::internal::MacroAssembler::Sbfx(), v8::internal::MacroAssembler::Sdiv(), v8::internal::MacroAssembler::Smaddl(), v8::internal::MacroAssembler::Smsubl(), v8::internal::MacroAssembler::Smulh(), v8::internal::MacroAssembler::Smull(), v8::internal::MacroAssembler::Sxtb(), v8::internal::MacroAssembler::Sxth(), v8::internal::MacroAssembler::Sxtw(), v8::internal::MacroAssembler::Ubfiz(), v8::internal::MacroAssembler::Ubfx(), v8::internal::MacroAssembler::Udiv(), v8::internal::MacroAssembler::Umaddl(), v8::internal::MacroAssembler::Umsubl(), v8::internal::MacroAssembler::Uxtb(), v8::internal::MacroAssembler::Uxth(), and v8::internal::MacroAssembler::Uxtw().

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S()

FPRegister v8::internal::CPURegister::S ( ) const

inline

Definition at line 252 of file assembler-arm64-inl.h.

                                       {
  DCHECK(IsValidFPRegister());
  return FPRegister::SRegFromCode(reg_code);
}

References DCHECK, IsValidFPRegister(), reg_code, and v8::internal::FPRegister::SRegFromCode().

Referenced by v8::internal::UseScratchRegisterScope::AcquireS().

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SizeInBits()

unsigned v8::internal::CPURegister::SizeInBits ( ) const

inline

Definition at line 57 of file assembler-arm64-inl.h.

                                              {
  DCHECK(IsValid());
  return reg_size;
}

References DCHECK, IsValid(), and reg_size.

Referenced by v8::internal::Assembler::asr(), v8::internal::Assembler::bfi(), v8::internal::Assembler::bfxil(), v8::internal::CPURegList::Combine(), v8::internal::Assembler::lsl(), v8::internal::Assembler::lsr(), v8::internal::Assembler::sbfiz(), v8::internal::Assembler::sbfx(), SizeInBytes(), v8::internal::MacroAssembler::TestAndBranchIfAllClear(), v8::internal::MacroAssembler::TestAndBranchIfAnySet(), v8::internal::Assembler::ubfiz(), and v8::internal::Assembler::ubfx().

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SizeInBytes()

int v8::internal::CPURegister::SizeInBytes ( ) const

inline

Definition at line 63 of file assembler-arm64-inl.h.

                                          {
  DCHECK(IsValid());
  DCHECK(SizeInBits() % 8 == 0);
  return reg_size / 8;
}

References DCHECK, IsValid(), reg_size, and SizeInBits().

Referenced by v8::internal::MacroAssembler::PushPopQueue::Queue().

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type()

CPURegister::RegisterType v8::internal::CPURegister::type ( ) const

inline

Definition at line 45 of file assembler-arm64-inl.h.

                                                       {
  DCHECK(IsValidOrNone());
  return reg_type;
}

References DCHECK, IsValidOrNone(), and reg_type.

Referenced by v8::internal::CPURegList::Combine(), Create(), v8::internal::CPURegList::IncludesAliasOf(), and v8::internal::CPURegList::Remove().

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W()

Register v8::internal::CPURegister::W ( ) const

inline

Definition at line 240 of file assembler-arm64-inl.h.

                                     {
  DCHECK(IsValidRegister());
  return Register::WRegFromCode(reg_code);
}

References DCHECK, IsValidRegister(), reg_code, and v8::internal::Register::WRegFromCode().

Referenced by v8::internal::UseScratchRegisterScope::AcquireW(), v8::internal::compiler::FINAL< kOperandKind, kNumCachedOperands >::InputRegister32(), v8::internal::MacroAssembler::IsObjectJSStringType(), v8::internal::compiler::FINAL< kOperandKind, kNumCachedOperands >::OutputRegister32(), v8::internal::MacroAssembler::SmiTagAndPush(), and v8::internal::LCodeGen::ToRegister32().

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X()

Register v8::internal::CPURegister::X ( ) const

inline

Definition at line 246 of file assembler-arm64-inl.h.

                                     {
  DCHECK(IsValidRegister());
  return Register::XRegFromCode(reg_code);
}

References DCHECK, IsValidRegister(), reg_code, and v8::internal::Register::XRegFromCode().

Referenced by v8::internal::UseScratchRegisterScope::AcquireX().

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Member Data Documentation

reg_code

unsigned v8::internal::CPURegister::reg_code

Definition at line 88 of file assembler-arm64.h.

Referenced by Aliases(), Bit(), code(), D(), v8::internal::FPRegister::FPRegister(), v8::internal::Register::IsAllocatable(), IsNone(), IsSP(), IsValidFPRegister(), IsValidRegister(), IsZero(), v8::internal::Register::Register(), S(), W(), and X().

reg_size

unsigned v8::internal::CPURegister::reg_size

Definition at line 89 of file assembler-arm64.h.

Referenced by v8::internal::FPRegister::FPRegister(), Is(), Is32Bits(), Is64Bits(), IsNone(), IsSameSizeAndType(), IsValidFPRegister(), IsValidRegister(), v8::internal::Register::Register(), SizeInBits(), and SizeInBytes().

reg_type

RegisterType v8::internal::CPURegister::reg_type

Definition at line 90 of file assembler-arm64.h.

Referenced by Aliases(), v8::internal::FPRegister::FPRegister(), IsFPRegister(), IsNone(), IsRegister(), IsSameSizeAndType(), v8::internal::Register::Register(), and type().

---

The documentation for this struct was generated from the following files:

• /mnt/V8SourceCode/src/arm64/assembler-arm64.h
• /mnt/V8SourceCode/src/arm64/assembler-arm64-inl.h