Scheduler and GCC CFG

[David Edelsohn]

>>>>> Jan Hubicka writes:

Jan> I did small experiment with converting the extended block scheduling to
Jan> the CFG code and it wasn't dificult, so I guess sched-rgn should be easy
Jan> too.

Jan> I dind't contributed superblock scheduling code yet, since I never was
Jan> able to benchmark it seriously (Athlon is not best platform for such a
Jan> kind of work and I get mixed results there).  I will try to take a look
Jan> after merging the register tracking bits into rtlopt branch.

	If I understand correct, we have the current region scheduler, the
extended basic block scheduler, an extended basic block scheduler
converted to use CFG, and something you refer to as a superblock
scheduler.  May I please get access to your CFG-based EBB scheduler and
your superblock scheduler?  I am investigating how to improve the GCC
scheduler and would like to include your proposals.

Thanks, David