http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47657
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011.02.09 11:06:56 Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-09 11:06:56 UTC --- It is vectorized with -fno-vect-cost-model. The cray compiler probably exchanged loops and/or did more agressive unrolling than us here (the code with -fno-vect-cost-model shows the cost model is right ;))