On Sat, May 16, 2009 at 11:41 AM, VandeVondele Joost <vond...@pci.uzh.ch> wrote: > >>>> I think it is useful to have a bugzilla here. >>> >>> will do. > > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40168 > >> >> Btw, complete unrolling is also hindred by the artificial limit of >> maximally >> unrolling 16 iterations. Your inner loops iterate 27 times. Also by the >> artificial limit of the maximal unrolled size. >> >> With --param max-completely-peel-times=27 --param >> max-completely-peeled-insns=666 >> >> (values for trunk) the loops are unrolled at -O3. > > hmmm. but leading to slower code.
Not for me - but well, the main issue is the memsets which the frontend generates. Richard.
