https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86324
--- Comment #4 from Peter Bergner <bergner at gcc dot gnu.org> --- So talking with Joseph on IRC, he said if K[FC]mode or I[FC}mode are the same as long double, then we should translate the mode attribute in c-attribs.c:handle_mode_attribute() to return the T[FC]mode instead. I have a patch that does that and I'm testing it now.
