On Thu, Aug 20, 2009 at 11:48 AM, Dominique Dhumieres<domi...@lps.ens.fr> wrote: > IIRC another code that is "improved" by complete_unrolli is the polyhedron > test induct.f90. However it gives worse results for some variants > (see pr34265: induct_v2/3). > >> Can't we use graphite to re-roll loops? ... > > Is doing and undoing always some kind of work?
Yes it is, but you can only reliably find out if unrolling will enable further optimizations if you do the unrolling. If it didn't enable anything re-rolling the loop should be possible. And within the polyhedral representation it should even be easy (I hope). Richard. > Cheers > > Dominique >
