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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_X86_X86INTERNAL_P_H_INCLUDED
#define ASMJIT_X86_X86INTERNAL_P_H_INCLUDED
#include "../core/api-config.h"
#include "../core/func.h"
#include "../x86/x86emitter.h"
#include "../x86/x86operand.h"
ASMJIT_BEGIN_SUB_NAMESPACE(x86)
//! \cond INTERNAL
//! \addtogroup asmjit_x86
//! \{
// ============================================================================
// [asmjit::X86Internal]
// ============================================================================
//! X86 utilities used at multiple places, not part of public API, not exported.
struct X86Internal {
//! Initialize `FuncDetail` (X86 specific).
static Error initFuncDetail(FuncDetail& func, const FuncSignature& signature, uint32_t registerSize) noexcept;
//! Initialize `FuncFrame` (X86 specific).
static Error initFuncFrame(FuncFrame& frame, const FuncDetail& signature) noexcept;
//! Finalize `FuncFrame` (X86 specific).
static Error finalizeFuncFrame(FuncFrame& frame) noexcept;
static Error argsToFuncFrame(const FuncArgsAssignment& args, FuncFrame& frame) noexcept;
//! Emit function prolog.
static Error emitProlog(Emitter* emitter, const FuncFrame& frame);
//! Emit function epilog.
static Error emitEpilog(Emitter* emitter, const FuncFrame& frame);
//! Emit 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.
static Error emitRegMove(Emitter* emitter,
const Operand_& dst_,
const Operand_& src_, uint32_t typeId, bool avxEnabled, const char* comment = nullptr);
//! Emit 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) will fail.
static Error emitArgMove(Emitter* emitter,
const Reg& dst_, uint32_t dstTypeId,
const Operand_& src_, uint32_t srcTypeId, bool avxEnabled, const char* comment = nullptr);
static Error emitArgsAssignment(Emitter* emitter, const FuncFrame& frame, const FuncArgsAssignment& args);
};
//! \}
//! \endcond
ASMJIT_END_SUB_NAMESPACE
#endif // ASMJIT_X86_X86INTERNAL_P_H_INCLUDED
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