asmjit::FuncArgsAssignment Class Reference

A helper class that can be used to assign a physical register for each function argument.

Use with BaseEmitter::emitArgsAssignment().

Public Members

const FuncDetail* _funcDetail

uint8_t _saRegId

uint8_t _reserved[3]

FuncValuePack _argPacks[Globals::kMaxFuncArgs]

Member Functions

Construction & Destruction

FuncArgsAssignment(const FuncDetail* fd = nullptr) noexcept

FuncArgsAssignment(const FuncArgsAssignment& other) noexcept

void reset(const FuncDetail* fd = nullptr) noexcept

Accessors

const FuncDetail* funcDetail() const noexcept

void setFuncDetail(const FuncDetail* fd) noexcept

bool hasSARegId() const noexcept

uint32_t saRegId() const noexcept

void setSARegId(uint32_t regId)

void resetSARegId()

FuncValue& arg(size_t argIndex, size_t valueIndex) noexcept

const FuncValue& arg(size_t argIndex, size_t valueIndex) const noexcept

bool isAssigned(size_t argIndex, size_t valueIndex) const noexcept

void assignReg(size_t argIndex, const BaseReg& reg, uint32_t typeId = Type::kIdVoid) noexcept

void assignReg(size_t argIndex, uint32_t regType, uint32_t regId, uint32_t typeId = Type::kIdVoid) noexcept

void assignStack(size_t argIndex, int32_t offset, uint32_t typeId = Type::kIdVoid) noexcept

void assignRegInPack(size_t argIndex, size_t valueIndex, const BaseReg& reg, uint32_t typeId = Type::kIdVoid) noexcept

void assignRegInPack(size_t argIndex, size_t valueIndex, uint32_t regType, uint32_t regId, uint32_t typeId = Type::kIdVoid) noexcept

void assignStackInPack(size_t argIndex, size_t valueIndex, int32_t offset, uint32_t typeId = Type::kIdVoid) noexcept

void _assignAllInternal(size_t argIndex, const BaseReg& reg) noexcept

template<typename... Args>

void _assignAllInternal(size_t argIndex, const BaseReg& reg, Args&&... args) noexcept

template<typename... Args>

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

Utilities

Error updateFuncFrame(FuncFrame& frame) const noexcept

Member Function Documentation

Error FuncArgsAssignment::updateFuncFrame(FuncFrame& frame) constnoexcept

Update FuncFrame based on function's arguments assignment.

Note

You MUST call this in orher to use BaseEmitter::emitArgsAssignment(), otherwise the FuncFrame would not contain the information necessary to assign all arguments into the registers and/or stack specified.

Member Data Documentation

const FuncDetail* FuncArgsAssignment::_funcDetail

Function detail.

uint8_t FuncArgsAssignment::_saRegId

Register that can be used to access arguments passed by stack.

uint8_t FuncArgsAssignment::_reserved[3]

Reserved for future use.

FuncValuePack FuncArgsAssignment::_argPacks[Globals::kMaxFuncArgs]

Mapping of each function argument.