On Mon, 2007-04-23 at 14:06 -0400, Diego Novillo wrote: > > So, I think there's a middle ground between "exactly the same passes on > > all targets" and "use Acovea for every CPU to pick what -O2 means". > > Using Acovea to reveal some of the suprising, but beneficial results, > > seems like a fine idea, though. > > I'm hoping to hear something along those lines at the next GCC Summit. I > have heard of a bunch of work in academia doing extensive optimization > space searches looking for combinations of pass sequencing and > repetition to achieve optimal results.
When I finished my Masters project a couple of years ago, I felt that iterative compilation was a failing idea. It seems, though, that I should have considered submitting a GCC Summit paper on my experiences with GCC. Perhaps next year, if it's still relevant! Ben -- Ben Elliston <[EMAIL PROTECTED]> Australia Development Lab, IBM
