http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57393
--- Comment #13 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> --- (In reply to Marek Polacek from comment #12) > Started with r199048. yes, as was pointed out in PR57370 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57370#c2 which is presumably a dup (but hanging instead of ICEing). Given the number of duplicates, it would be great to see this fixed sooner than later, but so far there has been no reply by the author of r199048.