https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87937
--- Comment #13 from Tomáš Trnka <trnka at scm dot com> --- (In reply to Dominique d'Humieres from comment #12) > I finally got it: the problem has been introduced in trunk by revision > r264358 and fixed by r264725. Good catch! (How could I have missed that?) Backporting r264725 on top of the current gcc-8 branch fixes the issue for me. Thanks!