/// <summary>
/// Allocate a register for the given type.
/// </summary>
protected override RegisterSpec Allocate(TypeReference type, bool forceObject, RCategory category, object parameter)
{
var isWide = !forceObject && type.IsWide();
if (isWide)
{
var pair = body.AllocateWideRegister(category);
switch (category)
{
case RCategory.Temp:
return(new RegisterSpec(pair.Item1, pair.Item2, type));
case RCategory.Variable:
case RCategory.VariablePreventOptimization:
case RCategory.TempVariable:
return(new VariableRegisterSpec(pair.Item1, pair.Item2, type, (AstVariable)parameter));
case RCategory.Argument:
return(new ArgumentRegisterSpec(pair.Item1, pair.Item2, type, ParameterWrapper.Wrap(parameter)));
default:
throw new ArgumentException("Unknown category " + category);
}
}
var isPrimitive = !forceObject && (type is PrimitiveType);
var register = body.AllocateRegister(category, isPrimitive ? RType.Value : RType.Object);
switch (category)
{
case RCategory.Temp:
return(new RegisterSpec(register, null, type));
case RCategory.Variable:
case RCategory.VariablePreventOptimization:
case RCategory.TempVariable:
return(new VariableRegisterSpec(register, null, type, (AstVariable)parameter));
case RCategory.Argument:
return(new ArgumentRegisterSpec(register, null, type, ParameterWrapper.Wrap(parameter)));
default:
throw new ArgumentException("Unknown category " + category);
}
}