v8::internal::CpuFeatures Class Reference

#include <assembler.h>

Inheritance diagram for v8::internal::CpuFeatures:

Collaboration diagram for v8::internal::CpuFeatures:

Static Public Member Functions
static void	Probe (bool cross_compile)
static unsigned	SupportedFeatures ()
static bool	IsSupported (CpuFeature f)
static bool	SupportsCrankshaft ()
static unsigned	cache_line_size ()
static void	PrintTarget ()
static void	PrintFeatures ()
static void	FlushICache (void *start, size_t size)

Private Member Functions
	DISALLOW_COPY_AND_ASSIGN (CpuFeatures)

Static Private Member Functions
static void	ProbeImpl (bool cross_compile)

Static Private Attributes
static unsigned	supported_ = 0
static unsigned	cache_line_size_ = 0
static bool	initialized_ = false

Friends
class	ExternalReference

Detailed Description

Definition at line 170 of file assembler.h.

Member Function Documentation

cache_line_size()

static unsigned v8::internal::CpuFeatures::cache_line_size ( )

inlinestatic

Definition at line 190 of file assembler.h.

                                           {
    DCHECK(cache_line_size_ != 0);
    return cache_line_size_;
  }

References cache_line_size_, and DCHECK.

DISALLOW_COPY_AND_ASSIGN()

v8::internal::CpuFeatures::DISALLOW_COPY_AND_ASSIGN ( CpuFeatures  )

private

FlushICache()

static void v8::internal::CpuFeatures::FlushICache ( void *  start, size_t  size  )

static

Referenced by v8::internal::Code::CopyFrom(), v8::internal::Deoptimizer::EnsureCodeForDeoptimizationEntry(), v8::internal::Deserializer::FlushICacheForNewCodeObjects(), v8::internal::IC::InvalidateMaps(), v8::internal::RecordWriteStub::Patch(), v8::internal::Code::Relocate(), v8::internal::Assembler::set_target_address_at(), and v8::internal::PatchingAssembler::~PatchingAssembler().

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IsSupported()

static bool v8::internal::CpuFeatures::IsSupported ( CpuFeature  f )

inlinestatic

Definition at line 184 of file assembler.h.

                                        {
    return (supported_ & (1u << f)) != 0;
  }

References supported_.

Referenced by v8::internal::MacroAssembler::BumpSystemStackPointer(), v8::internal::DoubleToIStub::DoubleToIStub(), v8::internal::DwVfpRegister::NumRegisters(), v8::internal::Assembler::return_address_from_call_start(), v8::internal::Assembler::set_target_address_at(), SupportsCrankshaft(), v8::internal::MacroAssembler::SyncSystemStackPointer(), v8::internal::Assembler::target_address_at(), and v8::internal::Assembler::target_address_from_return_address().

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PrintFeatures()

static void v8::internal::CpuFeatures::PrintFeatures ( )

static

Referenced by v8::internal::FlagList::PrintHelp().

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PrintTarget()

static void v8::internal::CpuFeatures::PrintTarget ( )

static

Referenced by v8::internal::FlagList::PrintHelp().

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Probe()

static void v8::internal::CpuFeatures::Probe ( bool  cross_compile )

inlinestatic

Definition at line 172 of file assembler.h.

                                        {
    STATIC_ASSERT(NUMBER_OF_CPU_FEATURES <= kBitsPerInt);
    if (initialized_) return;
    initialized_ = true;
    ProbeImpl(cross_compile);
  }

References initialized_, v8::internal::kBitsPerInt, v8::internal::NUMBER_OF_CPU_FEATURES, ProbeImpl(), and v8::internal::STATIC_ASSERT().

Referenced by v8::internal::V8::InitializeOncePerProcessImpl(), main(), v8::internal::FlagList::PrintHelp(), and SupportedFeatures().

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ProbeImpl()

static void v8::internal::CpuFeatures::ProbeImpl ( bool  cross_compile )

staticprivate

Referenced by Probe().

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SupportedFeatures()

static unsigned v8::internal::CpuFeatures::SupportedFeatures ( )

inlinestatic

Definition at line 179 of file assembler.h.

                                      {
    Probe(false);
    return supported_;
  }

References Probe(), and supported_.

Referenced by v8::internal::compiler::FINAL< kOperandKind, kNumCachedOperands >::SupportedFeatures().

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SupportsCrankshaft()

bool v8::internal::CpuFeatures::SupportsCrankshaft ( )

inlinestatic

Definition at line 50 of file assembler-arm-inl.h.

{ return IsSupported(VFP3); }

References IsSupported(), and v8::internal::VFP3.

Referenced by v8::internal::Isolate::use_crankshaft().

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Friends And Related Function Documentation

ExternalReference

friend class ExternalReference

friend

Definition at line 208 of file assembler.h.

Member Data Documentation

cache_line_size_

unsigned v8::internal::CpuFeatures::cache_line_size_ = 0

staticprivate

Definition at line 206 of file assembler.h.

Referenced by cache_line_size().

initialized_

bool v8::internal::CpuFeatures::initialized_ = false

staticprivate

Definition at line 207 of file assembler.h.

Referenced by Probe().

supported_

unsigned v8::internal::CpuFeatures::supported_ = 0

staticprivate

Definition at line 205 of file assembler.h.

Referenced by IsSupported(), and SupportedFeatures().

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

• /mnt/V8SourceCode/src/assembler.h
• /mnt/V8SourceCode/src/arm/assembler-arm-inl.h
• /mnt/V8SourceCode/src/arm64/assembler-arm64-inl.h
• /mnt/V8SourceCode/src/assembler.cc
• /mnt/V8SourceCode/src/ia32/assembler-ia32-inl.h
• /mnt/V8SourceCode/src/mips/assembler-mips-inl.h
• /mnt/V8SourceCode/src/mips64/assembler-mips64-inl.h
• /mnt/V8SourceCode/src/x64/assembler-x64-inl.h
• /mnt/V8SourceCode/src/x87/assembler-x87-inl.h