asmjit::Label Class Reference

Inheritance diagram for asmjit::Label:

Label (jump target or data location).

Label represents a location in code typically used as a jump target, but may be also a reference to some data or a static variable. Label has to be explicitly created by BaseEmitter.

Example of using labels:

// Create some emitter (for example x86::Assembler).
x86::Assembler a;
 
// Create Label instance.
Label L1 = a.newLabel();
 
// ... your code ...
 
// Using label.
a.jump(L1);
 
// ... your code ...
 
// Bind label to the current position, see `BaseEmitter::bind()`.
a.bind(L1);

Member Functions

Construction & Destruction

constexpr Label() noexcept

constexpr Label(const Label& other) noexcept

constexpr Label(uint32_t id) noexcept

Label(Globals::NoInit_) noexcept

void reset() noexcept

Overloaded Operators

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

Accessors

constexpr bool isValid() const noexcept

void setId(uint32_t id) noexcept

 Public Member Functions inherited from asmjit::Operand

constexpr Operand() noexcept

constexpr Operand(const Operand& other) noexcept = default

constexpr Operand(const Operand_& other)

constexpr Operand(Globals::Init_, const Signature& u0, uint32_t u1, uint32_t u2, uint32_t u3) noexcept

Operand(Globals::NoInit_) noexcept

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

Operand& operator=(const Operand_& other) noexcept

constexpr Operand clone() const noexcept

 Public Member Functions inherited from asmjit::Operand_

void copyFrom(const Operand_& other) noexcept

void reset() noexcept

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

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

template<typename T>

T& as() noexcept

template<typename T>

const T& as() const noexcept

constexpr bool hasSignature(const Operand_& other) const noexcept

constexpr bool hasSignature(const Signature& other) const noexcept

constexpr Signature signature() const noexcept

void setSignature(const Signature& signature) noexcept

constexpr OperandType opType() const noexcept

constexpr bool isNone() const noexcept

constexpr bool isReg() const noexcept

constexpr bool isRegList() const noexcept

constexpr bool isMem() const noexcept

constexpr bool isImm() const noexcept

constexpr bool isLabel() const noexcept

constexpr bool isPhysReg() const noexcept

constexpr bool isVirtReg() const noexcept

constexpr uint32_t id() const noexcept

constexpr bool equals(const Operand_& other) const noexcept

constexpr bool isReg(RegType type) const noexcept

constexpr bool isRegList(RegType type) const noexcept

constexpr bool isReg(RegType type, uint32_t regId) const noexcept

constexpr bool isRegOrMem() const noexcept

constexpr bool isRegOrRegListOrMem() const noexcept

constexpr uint32_t x86RmSize() const noexcept

Additional Inherited Members

 Public Attributes inherited from asmjit::Operand_

Signature _signature

uint32_t _baseId

uint32_t _data[2]

 Public Types inherited from asmjit::Operand_

enum DataIndex : uint32_t

enum VirtIdConstants : uint32_t

typedef OperandSignature Signature

 Static Public Member Functions inherited from asmjit::Operand_

static bool isVirtId(uint32_t id) noexcept

static uint32_t indexToVirtId(uint32_t id) noexcept

static uint32_t virtIdToIndex(uint32_t id) noexcept

Constructor & Destructor Documentation

Label::Label()constexprconstexprnoexcept[1/3]

Creates a label operand without ID (you must set the ID to make it valid).

Label::Label(const Label& other)constexprconstexprnoexcept[2/3]

Creates a cloned label operand of other.

Label::Label(uint32_t id)constexprexplicitconstexprnoexcept[3/3]

Creates a label operand of the given id.

Member Function Documentation

void Label::reset()noexcept

Resets the label, will reset all properties and set its ID to Globals::kInvalidId.

bool Label::isValid() constconstexprconstexprnoexcept

Tests whether the label was created by CodeHolder and/or an attached emitter.

void Label::setId(uint32_t id)noexcept

Sets the label id.