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Low-Latency Machine Code Generation

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Index ⭢ Assembler ⭢ asmjit::OperandSignature

asmjit::OperandSignature Struct Reference

Operand signature is a 32-bit number describing Operand and some of its payload.

In AsmJit operand signature is used to store additional payload of register, memory, and immediate operands. In practice the biggest pressure on OperandSignature is from BaseMem and architecture specific memory operands that need to store additional payload that cannot be stored elsewhere as values of all other members are fully specified by BaseMem.

Public Members

Members

uint32_t _bits

Public Types

Constants

enum : uint32_t

Member Functions

Overloaded Operators

Overloaded operators make OperandSignature behave like regular integer.

constexpr bool operator!() const noexcept

constexpr operator bool() const noexcept

OperandSignature& operator| = (uint32_t x) noexcept

OperandSignature& operator& = (uint32_t x) noexcept

OperandSignature& operator^ = (uint32_t x) noexcept

OperandSignature& operator| = (const OperandSignature& other) noexcept

OperandSignature& operator& = (const OperandSignature& other) noexcept

OperandSignature& operator^ = (const OperandSignature& other) noexcept

constexpr OperandSignature operator~() const noexcept

constexpr OperandSignature operator|(uint32_t x) const noexcept

constexpr OperandSignature operator&(uint32_t x) const noexcept

constexpr OperandSignature operator^(uint32_t x) const noexcept

constexpr OperandSignature operator|(const OperandSignature& other) const noexcept

constexpr OperandSignature operator&(const OperandSignature& other) const noexcept

constexpr OperandSignature operator^(const OperandSignature& other) const noexcept

constexpr bool operator==(uint32_t x) const noexcept

constexpr bool operator!=(uint32_t x) const noexcept

constexpr bool operator==(const OperandSignature& other) const noexcept

constexpr bool operator!=(const OperandSignature& other) const noexcept

Accessors

void reset() noexcept

constexpr uint32_t bits() const noexcept

void setBits(uint32_t bits) noexcept

template<uint32_t kFieldMask>

constexpr bool hasField() const noexcept

template<uint32_t kFieldMask>

constexpr bool hasField(uint32_t value) const noexcept

template<uint32_t kFieldMask>

constexpr uint32_t getField() const noexcept

template<uint32_t kFieldMask>

void setField(uint32_t value) noexcept

constexpr OperandSignature subset(uint32_t mask) const noexcept

template<uint32_t kFieldMask, uint32_t kFieldShift = Support::ConstCTZ<kFieldMask>::value>

constexpr OperandSignature replacedValue(uint32_t value) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesSignature(const OperandSignature& signature) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesFields(uint32_t bits) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesFields(const OperandSignature& fields) const noexcept

constexpr bool isValid() const noexcept

constexpr OperandType opType() const noexcept

constexpr RegType regType() const noexcept

constexpr RegGroup regGroup() const noexcept

constexpr RegType memBaseType() const noexcept

constexpr RegType memIndexType() const noexcept

constexpr uint32_t predicate() const noexcept

constexpr uint32_t size() const noexcept

void setOpType(OperandType opType) noexcept

void setRegType(RegType regType) noexcept

void setRegGroup(RegGroup regGroup) noexcept

void setMemBaseType(RegType baseType) noexcept

void setMemIndexType(RegType indexType) noexcept

void setPredicate(uint32_t predicate) noexcept

void setSize(uint32_t size) noexcept

Static Functions

Static Constructors

static constexpr OperandSignature fromBits(uint32_t bits) noexcept

template<uint32_t kFieldMask, typename T>

static constexpr OperandSignature fromValue(const T& value) noexcept

static constexpr OperandSignature fromOpType(OperandType opType) noexcept

static constexpr OperandSignature fromRegType(RegType regType) noexcept

static constexpr OperandSignature fromRegGroup(RegGroup regGroup) noexcept

static constexpr OperandSignature fromRegTypeAndGroup(RegType regType, RegGroup regGroup) noexcept

static constexpr OperandSignature fromMemBaseType(RegType baseType) noexcept

static constexpr OperandSignature fromMemIndexType(RegType indexType) noexcept

static constexpr OperandSignature fromPredicate(uint32_t predicate) noexcept

static constexpr OperandSignature fromSize(uint32_t size) noexcept

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AsmJit and AsmTK libraries are open source software released under the Zlib license and can be used safely in any open-source or commercial product, statically or dynamically linked, and without having to advertise the use of the libraries. Code snippets and examples are released into public domain, see Unlicense for more details.