https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118329
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #0) > config/avr/avr-modes.def doesn't have the INT_N (PSI, 24); line after > FRACTIONAL_INT_MODE line so, from middle-end POV, it is as > if __int24 doesn't exist, The point is that the GCC Internals don't say a word about INT_N semantics. So this one is up to the gurus and their secret knowledge.
