https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67716
--- Comment #19 from Oleg Endo <olegendo at gcc dot gnu.org> --- (In reply to Kazumoto Kojima from comment #18) > (In reply to Oleg Endo from comment #16) > > Regardless of those, Kaz, can you please commit attachment 36397 [details]? > > Then I can handle the other cases on top of that. > > Done. Thank you. Since this was reported for GCC 5, I think it should be backported. It's not a regression, but a latent issue. If you have no objections, I can do it.