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