[Bug fortran/99255] ICE in gfc_dt_upper_string, at fortran/module.c:441

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99255

--- Comment #2 from anlauf at gcc dot gnu.org ---
Replacing

  class(t) :: x

by

  class(t), allocatable :: x

avoids the ICE.  Could be an error recovery issue.