https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79456
--- Comment #1 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- I can not reproduce the bug on the fresh trunk any more. I believe the problem is analogous to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79282 and it was solved last week.