Inherent code performance advantages of D over C?

[Timon Gehr]

On 12/07/2013 10:03 AM, Walter Bright wrote:
> On 12/7/2013 1:30 AM, Marco Leise wrote:
>> How is that easier in Java? When whole-program analysis finds
>> that there is no class extending C, it could devirtualize all
>> methods of C, but(!) you can load and unload new derived
>> classes at runtime, too.
>
> This can be done by noting what new derived classes are introduced by
> runtime loading, and re-JITing any functions that devirtualized base
> classes of it.
>
> I don't know if this is actually done, but I don't see an obvious
> problem with it.

It is actually done, eg. by the HotSpot JVM.