[Bug fortran/101101] ICE in gfc_build_array_type, at fortran/trans-types.c:1391

["gscfq@t-online.de" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101101

--- Comment #2 from G. Steinmetz <gscfq@t-online.de> ---
Alternatives :


$ cat zz1.f90
program p
   class(*), pointer :: x
   dimension :: x(:)
end


$ cat zz2.f90
program p
   class(*) :: x(:)
   pointer :: x
end


$ gfortran-12-20220123 -c zz1.f90
f951: internal compiler error: Segmentation fault
0xcc430f crash_signal
        ../../gcc/toplev.cc:322
0x672cc7 resolve_fl_var_and_proc
        ../../gcc/fortran/resolve.cc:12866
0x76ace6 resolve_fl_variable
        ../../gcc/fortran/resolve.cc:13012
0x76ace6 resolve_symbol
        ../../gcc/fortran/resolve.cc:16096
0x789642 do_traverse_symtree
        ../../gcc/fortran/symbol.cc:4174
0x76d9c4 resolve_types
        ../../gcc/fortran/resolve.cc:17455
0x768e5c gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.cc:17570
0x751194 resolve_all_program_units
        ../../gcc/fortran/parse.cc:6586
0x751194 gfc_parse_file()
        ../../gcc/fortran/parse.cc:6842
0x79e86f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.cc:216


$ gfortran-12-20220123 -c zz2.f90
zz2.f90:4:3:

    4 | end
      |   1
internal compiler error: Segmentation fault
0xcc430f crash_signal
        ../../gcc/toplev.cc:322
0x6ee9b1 free_expr0
        ../../gcc/fortran/expr.cc:446
0x6eeb18 gfc_free_expr(gfc_expr*)
        ../../gcc/fortran/expr.cc:530
0x6b9fce gfc_free_array_spec(gfc_array_spec*)
        ../../gcc/fortran/array.cc:352
0x78fd1f free_components
        ../../gcc/fortran/symbol.cc:2606
0x78fd1f gfc_free_symbol(gfc_symbol*&)
        ../../gcc/fortran/symbol.cc:3078
0x78fe79 gfc_release_symbol(gfc_symbol*&)
        ../../gcc/fortran/symbol.cc:3127
0x78ff4e free_sym_tree
        ../../gcc/fortran/symbol.cc:3904
0x78ff3c free_sym_tree
        ../../gcc/fortran/symbol.cc:3901
0x78faf0 gfc_free_namespace(gfc_namespace*&)
        ../../gcc/fortran/symbol.cc:4043
0x790209 gfc_symbol_done_2()
        ../../gcc/fortran/symbol.cc:4105
0x728008 gfc_done_2()
        ../../gcc/fortran/misc.cc:382
0x751818 translate_all_program_units
        ../../gcc/fortran/parse.cc:6670
0x751818 gfc_parse_file()
        ../../gcc/fortran/parse.cc:6938
0x79e86f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.cc:216