https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97840
--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> --- I remember that first_field was returning non-NULL (perhaps it is derived from empty base)? My patch touched nothing on the condition: it just improved the alias analysis. So while previously we tought that the variable can be intialized by the function call _8 = __cxa_allocate_exception (48); now we are able to track and figure out that it is non-escaping and thus can not be touched by it.
