//-------------------------------------------------------------------------------------------------------

// Copyright (C) Microsoft. All rights reserved.

// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.

//-------------------------------------------------------------------------------------------------------

#pragma once

namespace Js

{

class OpCodeUtil

{

public:

static char16 const * GetOpCodeName(OpCode op);

static bool IsCallOp(OpCode op);

static bool IsProfiledCallOp(OpCode op);

static bool IsProfiledCallOpWithICIndex(OpCode op);

static bool IsProfiledReturnTypeCallOp(OpCode op);

// OpCode conversion functions

static void ConvertOpToNonProfiled(OpCode& op);

static void ConvertNonCallOpToProfiled(OpCode& op);

static void ConvertNonCallOpToProfiledWithICIndex(OpCode& op);

static void ConvertNonCallOpToNonProfiled(OpCode& op);

static void ConvertNonCallOpToNonProfiledWithICIndex(OpCode& op);

static OpCode ConvertProfiledCallOpToNonProfiled(OpCode op);

static OpCode ConvertProfiledReturnTypeCallOpToNonProfiled(OpCode op);

static OpCode ConvertCallOpToProfiled(OpCode op, bool withICIndex = false);

static OpCode ConvertCallOpToProfiledReturnType(OpCode op);

static bool IsValidByteCodeOpcode(OpCode op);

static bool IsValidOpcode(OpCode op);

static bool IsPrefixOpcode(OpCode op);

static bool IsSmallEncodedOpcode(OpCode op);

static uint EncodedSize(OpCode op, LayoutSize layoutSize);

static OpLayoutType GetOpCodeLayout(OpCode op);

private:

#if DBG_DUMP || ENABLE_DEBUG_CONFIG_OPTIONS

static char16 const * const OpCodeNames[(int)Js::OpCode::MaxByteSizedOpcodes + 1];

static char16 const * const ExtendedOpCodeNames[];

static char16 const * const BackendOpCodeNames[];

#endif

static OpLayoutType const OpCodeLayouts[];

static OpLayoutType const ExtendedOpCodeLayouts[];

static OpLayoutType const BackendOpCodeLayouts[];

#if DBG

static OpCode DebugConvertProfiledCallToNonProfiled(OpCode op);

static OpCode DebugConvertProfiledReturnTypeCallToNonProfiled(OpCode op);

#endif

};

};