https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62272
--- Comment #10 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Markus Trippelsdorf from comment #9) > (In reply to Jason Merrill from comment #8) > > Fixed for 5.3. > > Well, 4.9.3 still ICEs. Yes, but this isn't a regression.