[Bug target/89270] [12/13 regression] AVR ICE: verify_gimple failed

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89270

--- Comment #17 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Georg-Johann Lay from comment #16)
> (In reply to Richard Biener from comment #14)
> > Fixed on trunk sofar.  Joseph correctly mentioned that iff AVR would define
> > __int24 using INT_N in avr-modes.def the issue would have been mitigated as
> > well
> > (that's a comparatively "modern" way of registering additional integer
> > types).
> > 
> > So it's really also a target issue.
> 
> INT_N isn't even mentioned in the internals documentation.
> 
> And are you saying that FRACTIONAL_INT_MODE is bogus or broken by design?

No, INT_N is just a convenient way to add new builtin types that are
accessible as [u]intN_t to the user.  Those happened to be considered
already for the conversions.