https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89536
--- Comment #9 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Then I don't understand the problem in the BIT_NOT_EXPR case: we have int > type and [0, 1] range for rhs; if we know that BIT_NOT_EXPR is zero, we can > deduce that it must be 1 too. So the problem is in the non-zero case? Maybe add a test on integer_onep?
