https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88274
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > It's the opposite, we need to hide TYPE_MIN/MAX_VALUE to preserve checks in > Ada, otherwise the optimizer happily removes them. To be more explicit: in Ada, you can check at run time whether a value is valid for its nominal subtype (i.e. you can check if it's within the range) so you cannot have the obvious TYPE_MIN/MAX_VALUE on this nominal subtype, otherwise these checks will be elided by VRP.
