https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85608
--- Comment #3 from David Binderman <dcb314 at hotmail dot com> --- No idea, and currently no resource to find out. Sorry. There are plenty of ubsan bugs in gcc hanging around for months, if not years. This is merely another one. Wide int seems to be the favoured solution, but that doesn't seem to have been applied. AFAIK development is in stage 1, so now would be an appropriate time, if there is developer resource available.
