http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37150
--- Comment #15 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2013-03-27 12:53:16 UTC --- Created attachment 29738 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29738 maybe smaller testcase version ? Attached is what I think is roughly the smallest kernel of this type that we have in the code. I checked this is at least partially vectorized with ifort, but not so with gfortran trunk. It is still not such a small testcase, I'm afraid.