plugin hooks

[Rafael Espindola]

> From several face to face discussions with ICI CTuning people (that it
> Grigori Fursin, Albert Cohen, Zbignew Chamski; all 3 are in CC of this
> reply) I understood that GCC ICI is exactly doing that: it has replaced GCC
> pass manager by its own, which invokes all the existing GCC passes in some
> better order (or better number of invocation) and produces better generated
> code (the tuning is done by machine learning techniques; they did run their
> modified GCC a large number of times and did build a database of measures.).
>
> I cannot explain more in details what GCC ICI is actually doing. I hope my
> ICI friends will answer here. Perhaps even Zbignew's latest patches are
> related to the answer.

We talked a bit in the summit about it. I think that the correct
solution is to make the gcc pass manager have the flexibility they
need so that their plugin can just call into the regular pass manager.

> Regards.
>
>
> --
> Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
> email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
> 8, rue de la Faiencerie, 92340 Bourg La Reine, France
> *** opinions {are only mines, sont seulement les miennes} ***
>

Cheers,
-- 
Rafael Ávila de Espíndola