public override void Transform(Context context, TransformContext transformContext)
{
var result = context.Result;
var operand1 = context.Operand1;
var operand2 = context.Operand2;
var op0Low = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var op0High = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var op1Low = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var op1High = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var resultLow = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var resultHigh = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.I4);
var resultCarry = transformContext.AllocateVirtualRegister(transformContext.TypeSystem.BuiltIn.Boolean);
transformContext.SetGetLow64(context, op0Low, operand1);
transformContext.AppendGetHigh64(context, op0High, operand1);
transformContext.AppendGetLow64(context, op1Low, operand2);
transformContext.AppendGetHigh64(context, op1High, operand2);
context.AppendInstruction2(IRInstruction.AddCarryOut32, resultLow, resultCarry, op0Low, op1Low);
context.AppendInstruction(IRInstruction.AddCarryIn32, resultHigh, op0High, op1High, resultCarry);
context.AppendInstruction(IRInstruction.To64, result, resultLow, resultHigh);
}