v8::internal::DwVfpRegister Struct Reference

#include <assembler-arm.h>

Collaboration diagram for v8::internal::DwVfpRegister:

Public Member Functions
bool	is_valid () const
bool	is (DwVfpRegister reg) const
int	code () const
int	bit () const
void	split_code (int *vm, int *m) const

Static Public Member Functions
static int	NumRegisters ()
static int	NumReservedRegisters ()
static int	NumAllocatableRegisters ()
static int	NumAllocatableAliasedRegisters ()
static int	ToAllocationIndex (DwVfpRegister reg)
static const char *	AllocationIndexToString (int index)
static DwVfpRegister	FromAllocationIndex (int index)
static DwVfpRegister	from_code (int code)

Public Attributes
int	code_

Static Public Attributes
static const int	kMaxNumRegisters = 32
static const int	kNumReservedRegisters = 2
static const int	kMaxNumAllocatableRegisters
static const int	kSizeInBytes = 8

Detailed Description

Definition at line 203 of file assembler-arm.h.

Member Function Documentation

AllocationIndexToString()

static const char* v8::internal::DwVfpRegister::AllocationIndexToString ( int  index )

static

Referenced by v8::internal::Deoptimizer::DoTranslateCommand(), v8::internal::Deoptimizer::DoTranslateObject(), v8::internal::compiler::operator<<(), and v8::internal::LOperand::PrintTo().

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bit()

int v8::internal::DwVfpRegister::bit ( ) const

inline

Definition at line 243 of file assembler-arm.h.

                  {
    DCHECK(is_valid());
    return 1 << code_;
  }

References code_, DCHECK, and is_valid().

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code()

int v8::internal::DwVfpRegister::code ( ) const

inline

Definition at line 239 of file assembler-arm.h.

                   {
    DCHECK(is_valid());
    return code_;
  }

References code_, DCHECK, and is_valid().

Referenced by from_code(), and ToAllocationIndex().

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from_code()

static DwVfpRegister v8::internal::DwVfpRegister::from_code ( int  code )

inlinestatic

Definition at line 230 of file assembler-arm.h.

                                           {
    DwVfpRegister r = { code };
    return r;
  }

References code().

Referenced by FromAllocationIndex().

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FromAllocationIndex()

DwVfpRegister v8::internal::DwVfpRegister::FromAllocationIndex ( int  index )

inlinestatic

Definition at line 89 of file assembler-arm-inl.h.

                                                          {
  DCHECK(index >= 0 && index < NumAllocatableRegisters());
  DCHECK(kScratchDoubleReg.code() - kDoubleRegZero.code() ==
         kNumReservedRegisters - 1);
  if (index >= kDoubleRegZero.code()) {
    return from_code(index + kNumReservedRegisters);
  }
  return from_code(index);
}

References DCHECK, from_code(), kDoubleRegZero, kNumReservedRegisters, kScratchDoubleReg, and NumAllocatableRegisters().

Referenced by v8::internal::LCodeGen::RestoreCallerDoubles(), v8::internal::LCodeGen::SaveCallerDoubles(), v8::internal::compiler::InstructionOperandConverter::ToDoubleRegister(), and v8::internal::LCodeGen::ToDoubleRegister().

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is()

bool v8::internal::DwVfpRegister::is ( DwVfpRegister  reg ) const

inline

Definition at line 238 of file assembler-arm.h.

{ return code_ == reg.code_; }

References code_.

Referenced by v8::internal::LCodeGen::EmitNumberUntagD(), and ToAllocationIndex().

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is_valid()

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

inline

Definition at line 235 of file assembler-arm.h.

                        {
    return 0 <= code_ && code_ < kMaxNumRegisters;
  }

References code_, and kMaxNumRegisters.

Referenced by bit(), code(), and split_code().

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NumAllocatableAliasedRegisters()

int v8::internal::DoubleRegister::NumAllocatableAliasedRegisters ( )

inlinestatic

Definition at line 74 of file assembler-arm-inl.h.

                                                  {
  return LowDwVfpRegister::kMaxNumLowRegisters - kNumReservedRegisters;
}

References v8::internal::LowDwVfpRegister::kMaxNumLowRegisters, and kNumReservedRegisters.

NumAllocatableRegisters()

int v8::internal::DoubleRegister::NumAllocatableRegisters ( )

inlinestatic

Definition at line 68 of file assembler-arm-inl.h.

                                           {
  return NumRegisters() - kNumReservedRegisters;
}

References kNumReservedRegisters, and NumRegisters().

Referenced by v8::internal::Deoptimizer::FillInputFrame(), FromAllocationIndex(), and v8::internal::StandardFrame::IterateCompiledFrame().

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NumRegisters()

int v8::internal::DoubleRegister::NumRegisters ( )

inlinestatic

Definition at line 58 of file assembler-arm-inl.h.

                                {
  return CpuFeatures::IsSupported(VFP32DREGS) ? 32 : 16;
}

References v8::internal::CpuFeatures::IsSupported(), and v8::internal::VFP32DREGS.

Referenced by NumAllocatableRegisters().

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NumReservedRegisters()

int v8::internal::DwVfpRegister::NumReservedRegisters ( )

inlinestatic

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

                                        {
  return kNumReservedRegisters;
}

References kNumReservedRegisters.

split_code()

void v8::internal::DwVfpRegister::split_code ( int *  vm, int *  m  ) const

inline

Definition at line 247 of file assembler-arm.h.

                                         {
    DCHECK(is_valid());
    *m = (code_ & 0x10) >> 4;
    *vm = code_ & 0x0F;
  }

References code_, DCHECK, and is_valid().

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ToAllocationIndex()

int v8::internal::DwVfpRegister::ToAllocationIndex ( DwVfpRegister  reg )

inlinestatic

Definition at line 79 of file assembler-arm-inl.h.

                                                      {
  DCHECK(!reg.is(kDoubleRegZero));
  DCHECK(!reg.is(kScratchDoubleReg));
  if (reg.code() > kDoubleRegZero.code()) {
    return reg.code() - kNumReservedRegisters;
  }
  return reg.code();
}

References code(), DCHECK, is(), kDoubleRegZero, kNumReservedRegisters, and kScratchDoubleReg.

Referenced by v8::internal::compiler::OperandGenerator::DefineAsFixed(), and v8::internal::compiler::OperandGenerator::UseFixed().

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Member Data Documentation

code_

int v8::internal::DwVfpRegister::code_

Definition at line 253 of file assembler-arm.h.

Referenced by bit(), code(), is(), v8::internal::LowDwVfpRegister::is(), is_valid(), and split_code().

kMaxNumAllocatableRegisters

const int v8::internal::DwVfpRegister::kMaxNumAllocatableRegisters

static

Initial value:

= kMaxNumRegisters -
      kNumReservedRegisters

Definition at line 210 of file assembler-arm.h.

Referenced by v8::internal::LOperand::PrintTo().

kMaxNumRegisters

const int v8::internal::DwVfpRegister::kMaxNumRegisters = 32

static

Definition at line 204 of file assembler-arm.h.

Referenced by v8::internal::Deoptimizer::CopyDoubleRegisters(), and is_valid().

kNumReservedRegisters

const int v8::internal::DwVfpRegister::kNumReservedRegisters = 2

static

Definition at line 209 of file assembler-arm.h.

Referenced by FromAllocationIndex(), NumAllocatableAliasedRegisters(), NumAllocatableRegisters(), NumReservedRegisters(), and ToAllocationIndex().

kSizeInBytes

const int v8::internal::DwVfpRegister::kSizeInBytes = 8

static

Definition at line 212 of file assembler-arm.h.

---

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

• /mnt/V8SourceCode/src/arm/assembler-arm.h
• /mnt/V8SourceCode/src/arm/assembler-arm-inl.h
• /mnt/V8SourceCode/src/mips/assembler-mips-inl.h
• /mnt/V8SourceCode/src/mips64/assembler-mips64-inl.h