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// AsmJit - Machine code generation for C++
//
// * Official AsmJit Home Page: https://asmjit.com
// * Official Github Repository: https://github.com/asmjit/asmjit
//
// Copyright (c) 2008-2020 The AsmJit Authors
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#ifndef ASMJIT_CORE_EMITHELPER_P_H_INCLUDED
#define ASMJIT_CORE_EMITHELPER_P_H_INCLUDED
#include "../core/emitter.h"
#include "../core/operand.h"
#include "../core/type.h"
ASMJIT_BEGIN_NAMESPACE
//! \cond INTERNAL
//! \addtogroup asmjit_core
//! \{
// ============================================================================
// [asmjit::BaseEmitHelper]
// ============================================================================
//! Helper class that provides utilities for each supported architecture.
class BaseEmitHelper {
public:
BaseEmitter* _emitter;
inline explicit BaseEmitHelper(BaseEmitter* emitter = nullptr) noexcept
: _emitter(emitter) {}
inline BaseEmitter* emitter() const noexcept { return _emitter; }
inline void setEmitter(BaseEmitter* emitter) noexcept { _emitter = emitter; }
//! Emits a pure move operation between two registers or the same type or
//! between a register and its home slot. This function does not handle
//! register conversion.
virtual Error emitRegMove(
const Operand_& dst_,
const Operand_& src_, uint32_t typeId, const char* comment = nullptr) = 0;
//! Emits swap between two registers.
virtual Error emitRegSwap(
const BaseReg& a,
const BaseReg& b, const char* comment = nullptr) = 0;
//! Emits move from a function argument (either register or stack) to a register.
//!
//! This function can handle the necessary conversion from one argument to
//! another, and from one register type to another, if it's possible. Any
//! attempt of conversion that requires third register of a different group
//! (for example conversion from K to MMX on X86/X64) will fail.
virtual Error emitArgMove(
const BaseReg& dst_, uint32_t dstTypeId,
const Operand_& src_, uint32_t srcTypeId, const char* comment = nullptr) = 0;
Error emitArgsAssignment(const FuncFrame& frame, const FuncArgsAssignment& args);
};
//! \}
//! \endcond
ASMJIT_END_NAMESPACE
#endif // ASMJIT_CORE_EMITHELPER_P_H_INCLUDED
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