[Bug fortran/78534] Use a larger integer type for character lengths on 64-bit targets

[jb at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78534

--- Comment #9 from Janne Blomqvist <jb at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #8)
> Will it help for pr66310?

Probably yes, to the extent that with 64-bit indices the repeat count can be a
lot larger than you can afford to buy RAM. :)

I ran into a similar issues as in that PR, and put in an arbitrary limit in the
frontend simplicitation function of 4 MB.