https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66873
--- Comment #4 from vries at gcc dot gnu.org --- Created attachment 35983 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35983&action=edit Tentative patch Using this tentative patch, we use graphite analysis (if available) by default for parloops. That way, we manage to parallelize the fortran example using just -ftree-parallelize-loops=2.