[Bug fortran/68568] ICE with automatic character object and save, in combination with some options

[gerhard.steinmetz.fortran@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68568

--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fortran@t-online.de> ---
As already known, this works without an error :
(A SAVE statement without a saved entity list is treated as though
it contained the names of all allowed items in the same scoping unit.)

$ gfortran -g -O0 -Wall -fcheck=all -c z1a.f90



And this is detected :
(The SAVE attribute shall not be specified for an automatic data object.)

$ cat z1b.f90
subroutine s(n)
   integer, intent(in) :: n
   character(n), save :: x
   x = 'a'
end

$ gfortran -g -O0 -Wall -fcheck=all -c z1b.f90
z1b.f90:3:26:

    character(n), save :: x
                          1
Error: Automatic object 'x' at (1) cannot have the SAVE attribute