Will Java go native?

[Dmitry Leskov]

On Friday, 20 September 2013 at 07:19:44 UTC, deadalnix wrote:
> On Friday, 20 September 2013 at 05:31:09 UTC, Dmitry Leskov 
> wrote:
>> Our AOT compiler does inline virtual calls of non-final 
>> methods that are not overloaded in any subclass known at 
>> compile time. Of course, there is a runtime check and a backup 
>> virtual call, but the check is cheap and code size increase in 
>> negligible.
>>
>> What we don't do (yet) is profile-guided optimizations, but 
>> that is on our to-do list.
>>
>
> So basically what you do is :
>
> funptr = load from vtbl;
> if (funptr == compile_time_known_value) {
>     compile_time_known_value();
> } else {
>     funptr();
> }
>
> Which avoid the indirection if the function is actually called 
> most of the time. Am I right ?

Almost:

funptr = load from vtbl;
if (funptr == compile_time_known_value) {
     // Inlined body of compile_time_known_value() goes here
} else {
     funptr();
}