asmjit::CpuFeatures Class Reference

CPU features information.

Each feature is represented by a single bit in an embedded bit array.

Public Members

Members

Data _data {}

Classes

struct ARM

struct Data

struct X86

Public Types

Constants

typedef Support::BitWord BitWord

typedef Support::BitVectorIterator<BitWord> Iterator

typedef Support::Array<BitWord, kNumBitWords> Bits

Member Functions

Construction & Destruction

CpuFeatures() noexcept

CpuFeatures(const CpuFeatures& other) noexcept = default

CpuFeatures(const Data& other) noexcept

CpuFeatures(Globals::NoInit_) noexcept

Overloaded Operators

CpuFeatures& operator=(const CpuFeatures& other) noexcept = default

bool operator==(const CpuFeatures& other) const noexcept

bool operator!=(const CpuFeatures& other) const noexcept

Accessors

bool empty() const noexcept

template<typename T = Data>

T& data() noexcept

template<typename T = Data>

const T& data() const noexcept

X86& x86() noexcept

const X86& x86() const noexcept

ARM& arm() noexcept

const ARM& arm() const noexcept

BitWord* bits() noexcept

const BitWord* bits() const noexcept

size_t bitWordCount() const noexcept

Iterator iterator() const noexcept

template<typename FeatureId>

bool has(const FeatureId& featureId) const noexcept

template<typename... Args>

bool hasAny(Args&&... args) const noexcept

bool hasAll(const CpuFeatures& other) const noexcept

Manipulation

void reset() noexcept

template<typename... Args>

void add(Args&&... args) noexcept

template<typename... Args>

void addIf(bool condition, Args&&... args) noexcept

template<typename... Args>

void remove(Args&&... args) noexcept

bool equals(const CpuFeatures& other) const noexcept

Member Typedef Documentation

typedef Support::BitWord CpuFeatures::BitWord

A word that is used to represents feature bits.

typedef Support::BitVectorIterator<BitWord> CpuFeatures::Iterator

Iterator that can iterate all CPU features set.

Member Function Documentation

bool CpuFeatures::empty() constnoexcept

Returns true if there are no features set.

template<typename T = Data>

T& CpuFeatures::data()noexcept[1/2]

Casts this base class into a derived type T.

template<typename T = Data>

const T& CpuFeatures::data() constnoexcept[2/2]

Casts this base class into a derived type T (const).

X86& CpuFeatures::x86()noexcept[1/2]

Returns CpuFeatures::Data as CpuFeatures::X86.

const X86& CpuFeatures::x86() constnoexcept[2/2]

Returns CpuFeatures::Data as CpuFeatures::X86 (const).

ARM& CpuFeatures::arm()noexcept[1/2]

Returns CpuFeatures::Data as CpuFeatures::ARM.

const ARM& CpuFeatures::arm() constnoexcept[2/2]

Returns CpuFeatures::Data as CpuFeatures::ARM (const).

BitWord* CpuFeatures::bits()noexcept[1/2]

Returns all features as array of bitwords (see Support::BitWord).

const BitWord* CpuFeatures::bits() constnoexcept[2/2]

Returns all features as array of bitwords (const).

size_t CpuFeatures::bitWordCount() constnoexcept

Returns the number of BitWords returned by bits().

Iterator CpuFeatures::iterator() constnoexcept

Returns Support::BitVectorIterator, that can be used to iterate over all features efficiently.

template<typename FeatureId>

bool CpuFeatures::has(const FeatureId& featureId) constnoexcept

Tests whether the feature featureId is present.

template<typename... Args>

bool CpuFeatures::hasAny(Args&&... args) constnoexcept

Tests whether any of the features is present.

bool CpuFeatures::hasAll(const CpuFeatures& other) constnoexcept

Tests whether all features as defined by other are present.

void CpuFeatures::reset()noexcept

Clears all features set.

template<typename... Args>

void CpuFeatures::add(Args&&... args)noexcept

Adds the given CPU featureId to the list of features.

template<typename... Args>

void CpuFeatures::addIf(bool condition, Args&&... args)noexcept

Adds the given CPU featureId to the list of features if condition is true.

template<typename... Args>

void CpuFeatures::remove(Args&&... args)noexcept

Removes the given CPU featureId from the list of features.

bool CpuFeatures::equals(const CpuFeatures& other) constnoexcept

Tests whether this CPU features matches other.