Index ⭢ Assembler ⭢ asmjit::RegOnly

asmjit::RegOnly Struct Reference [¶]

RegOnly is 8-byte version of Reg that allows to store either register or nothing.

It's designed to decrease the space consumed by an extra "operand" in BaseEmitter and InstNode.

Public Members

Signature _signature

uint32_t _id

Public Types

Types

using Signature = OperandSignature

Member Functions

Construction & Destruction

constexpr void init(const OperandSignature& signature, uint32_t id) noexcept

constexpr void init(const Reg& reg) noexcept

constexpr void init(const RegOnly& reg) noexcept

constexpr void reset() noexcept

Accessors

constexpr bool isNone() const noexcept

constexpr bool isReg() const noexcept

constexpr bool isPhysReg() const noexcept

constexpr bool isVirtReg() const noexcept

constexpr OperandSignature signature() const noexcept

constexpr uint32_t id() const noexcept

constexpr void setId(uint32_t id) noexcept

constexpr RegType type() const noexcept

constexpr RegGroup group() const noexcept

Utilities

template<typename RegT>

constexpr RegT toReg() const noexcept

void RegOnly::init(
const OperandSignature& signature,
uint32_t id
)constexprnoexcept[¶]

Initializes the RegOnly instance to hold register signature and id.

void RegOnly::reset()constexprnoexcept[¶]

Resets the RegOnly members to zeros (none).

bool RegOnly::isNone() constconstexprnoexcept[¶]

Tests whether this ExtraReg is none (same as calling Operand_::isNone()).

bool RegOnly::isReg() constconstexprnoexcept[¶]

Tests whether the register is valid (either virtual or physical).

bool RegOnly::isPhysReg() constconstexprnoexcept[¶]

Tests whether this is a physical register.

bool RegOnly::isVirtReg() constconstexprnoexcept[¶]

Tests whether this is a virtual register (used by BaseCompiler).

OperandSignature RegOnly::signature() constconstexprnoexcept[¶]

Returns the register signature or 0 if no register is assigned.

uint32_t RegOnly::id() constconstexprnoexcept[¶]

Returns the register id.

Note: Always check whether the register is assigned before using the returned identifier as non-assigned RegOnly instance would return zero id, which is still a valid register id.

void RegOnly::setId(
uint32_t id
)constexprnoexcept[¶]

Sets the register id.

RegType RegOnly::type() constconstexprnoexcept[¶]

Returns the register type.

RegGroup RegOnly::group() constconstexprnoexcept[¶]

Returns the register group.

template<typename RegT>
RegT RegOnly::toReg() constconstexprnoexcept[¶]

Converts this ExtraReg to a real RegT operand.

Signature RegOnly::_signature[¶]

Operand signature - only OperandType::kNone and OperandType::kReg are supported.

uint32_t RegOnly::_id[¶]

Physical or virtual register id.