https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93134
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- I've tried to notify ISL folks via the isl-development google group, bugzilla doesn't like the URL though, https://groups.google.com/forum/#!topic/isl-development/kgt5RxawS_Q
