https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70141
--- Comment #2 from Alexander Kondratskiy <kholdstare0.0 at gmail dot com> --- Looking at the diffs in r229628 linked by Jakub, I find the changes to lines 8791 and 8793 in pt.c to be kinda fishy: https://gcc.gnu.org/viewcvs/gcc/trunk/gcc/cp/pt.c?r1=229628&r2=229627&pathrev=229628