https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82451
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 42312 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42312&action=edit first testcase ICEs with -O2 -floop-nest-optimize, needs cleanup for "proper" fortran.