https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78715
--- Comment #3 from vopl at bk dot ru --- probably the same https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67225 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78955 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80962
