示例#1
0
        private static string GetExpression(CodeGenContext context, AstOperation operation)
        {
            Instruction inst = operation.Inst;

            InstInfo info = GetInstructionInfo(inst);

            if ((info.Type & InstType.Call) != 0)
            {
                bool atomic = (info.Type & InstType.Atomic) != 0;

                int arity = (int)(info.Type & InstType.ArityMask);

                string args = string.Empty;

                for (int argIndex = 0; argIndex < arity; argIndex++)
                {
                    if (argIndex != 0)
                    {
                        args += ", ";
                    }

                    VariableType dstType = GetSrcVarType(inst, argIndex);

                    if (argIndex == 0 && atomic)
                    {
                        Instruction memRegion = inst & Instruction.MrMask;

                        switch (memRegion)
                        {
                        case Instruction.MrShared:  args += LoadShared(context, operation); break;

                        case Instruction.MrStorage: args += LoadStorage(context, operation); break;

                        default: throw new InvalidOperationException($"Invalid memory region \"{memRegion}\".");
                        }

                        // We use the first 2 operands above.
                        argIndex++;
                    }
                    else
                    {
                        args += GetSoureExpr(context, operation.GetSource(argIndex), dstType);
                    }
                }

                if (inst == Instruction.Ballot)
                {
                    return($"unpackUint2x32({info.OpName}({args})).x");
                }
                else
                {
                    return(info.OpName + "(" + args + ")");
                }
            }
            else if ((info.Type & InstType.Op) != 0)
            {
                string op = info.OpName;

                int arity = (int)(info.Type & InstType.ArityMask);

                string[] expr = new string[arity];

                for (int index = 0; index < arity; index++)
                {
                    IAstNode src = operation.GetSource(index);

                    string srcExpr = GetSoureExpr(context, src, GetSrcVarType(inst, index));

                    bool isLhs = arity == 2 && index == 0;

                    expr[index] = Enclose(srcExpr, src, inst, info, isLhs);
                }

                switch (arity)
                {
                case 0:
                    return(op);

                case 1:
                    return(op + expr[0]);

                case 2:
                    return($"{expr[0]} {op} {expr[1]}");

                case 3:
                    return($"{expr[0]} {op[0]} {expr[1]} {op[1]} {expr[2]}");
                }
            }
            else if ((info.Type & InstType.Special) != 0)
            {
                switch (inst)
                {
                case Instruction.ImageStore:
                    return(InstGenMemory.ImageStore(context, operation));

                case Instruction.LoadAttribute:
                    return(InstGenMemory.LoadAttribute(context, operation));

                case Instruction.LoadConstant:
                    return(InstGenMemory.LoadConstant(context, operation));

                case Instruction.LoadLocal:
                    return(InstGenMemory.LoadLocal(context, operation));

                case Instruction.LoadShared:
                    return(InstGenMemory.LoadShared(context, operation));

                case Instruction.LoadStorage:
                    return(InstGenMemory.LoadStorage(context, operation));

                case Instruction.Lod:
                    return(InstGenMemory.Lod(context, operation));

                case Instruction.PackDouble2x32:
                    return(InstGenPacking.PackDouble2x32(context, operation));

                case Instruction.PackHalf2x16:
                    return(InstGenPacking.PackHalf2x16(context, operation));

                case Instruction.StoreLocal:
                    return(InstGenMemory.StoreLocal(context, operation));

                case Instruction.StoreShared:
                    return(InstGenMemory.StoreShared(context, operation));

                case Instruction.StoreStorage:
                    return(InstGenMemory.StoreStorage(context, operation));

                case Instruction.TextureSample:
                    return(InstGenMemory.TextureSample(context, operation));

                case Instruction.TextureSize:
                    return(InstGenMemory.TextureSize(context, operation));

                case Instruction.UnpackDouble2x32:
                    return(InstGenPacking.UnpackDouble2x32(context, operation));

                case Instruction.UnpackHalf2x16:
                    return(InstGenPacking.UnpackHalf2x16(context, operation));
                }
            }

            throw new InvalidOperationException($"Unexpected instruction type \"{info.Type}\".");
        }
示例#2
0
文件: InstGen.cs 项目: zpoo32/Ryujinx
        private static string GetExpression(CodeGenContext context, AstOperation operation)
        {
            Instruction inst = operation.Inst;

            InstInfo info = GetInstructionInfo(inst);

            if ((info.Type & InstType.Call) != 0)
            {
                int arity = (int)(info.Type & InstType.ArityMask);

                string args = string.Empty;

                for (int argIndex = 0; argIndex < arity; argIndex++)
                {
                    if (argIndex != 0)
                    {
                        args += ", ";
                    }

                    VariableType dstType = GetSrcVarType(inst, argIndex);

                    args += GetSoureExpr(context, operation.GetSource(argIndex), dstType);
                }

                return(info.OpName + "(" + args + ")");
            }
            else if ((info.Type & InstType.Op) != 0)
            {
                string op = info.OpName;

                int arity = (int)(info.Type & InstType.ArityMask);

                string[] expr = new string[arity];

                for (int index = 0; index < arity; index++)
                {
                    IAstNode src = operation.GetSource(index);

                    string srcExpr = GetSoureExpr(context, src, GetSrcVarType(inst, index));

                    bool isLhs = arity == 2 && index == 0;

                    expr[index] = Enclose(srcExpr, src, inst, info, isLhs);
                }

                switch (arity)
                {
                case 0:
                    return(op);

                case 1:
                    return(op + expr[0]);

                case 2:
                    return($"{expr[0]} {op} {expr[1]}");

                case 3:
                    return($"{expr[0]} {op[0]} {expr[1]} {op[1]} {expr[2]}");
                }
            }
            else if ((info.Type & InstType.Special) != 0)
            {
                switch (inst)
                {
                case Instruction.LoadConstant:
                    return(InstGenMemory.LoadConstant(context, operation));

                case Instruction.PackHalf2x16:
                    return(InstGenPacking.PackHalf2x16(context, operation));

                case Instruction.TextureSample:
                    return(InstGenMemory.TextureSample(context, operation));

                case Instruction.TextureSize:
                    return(InstGenMemory.TextureSize(context, operation));

                case Instruction.UnpackHalf2x16:
                    return(InstGenPacking.UnpackHalf2x16(context, operation));
                }
            }

            throw new InvalidOperationException($"Unexpected instruction type \"{info.Type}\".");
        }