http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59121
--- Comment #9 from janus at gcc dot gnu.org --- (In reply to Richard Biener from comment #8) > -floop-parallelize-all ends up using GRAPHITE dependence analysis which is > what never finishes (is stuck in ISL). I'd say avoid it at all cost (as > the rest of GRAPHITE). If you're saying this is a case of WONTFIX and -floop-parallelize-all should not be used at all, maybe one should document the flag in the manual as 'experimental' (or 'broken' or whatever) ... ?