[Bug fortran/100275] ICE in gfc_build_null_descriptor, at fortran/trans-array.c:417

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100275

G. Steinmetz <gscfq@t-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-invalid-code

--- Comment #1 from G. Steinmetz <gscfq@t-online.de> ---

Additional variants :


$ cat z2.f90
program p
   type t
      integer :: a
   end type
   type(t) :: x
   data x /t(null())/
end


$ cat z3.f90
program p
   type t
      integer :: a(1)
   end type
   type(t) :: z
   data z /t(f())/
end


$ gfortran-11-20210425 -c z2.f90   # detected
z2.f90:6:13:

    6 |    data x /t(null())/
      |             1
Error: non-constant initialization expression at (1)


$ gfortran-11-20210425 -c z3.f90
z3.f90:1:9:

    1 | program p
      |         1
internal compiler error: in gfc_conv_array_initializer, at
fortran/trans-array.c:6230
0x785ae2 gfc_conv_array_initializer(tree_node*, gfc_expr*)
        ../../gcc/fortran/trans-array.c:6230
0x7c6d20 gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
        ../../gcc/fortran/trans-expr.c:7948
0x7c74b3 gfc_conv_structure(gfc_se*, gfc_expr*, int)
        ../../gcc/fortran/trans-expr.c:8863
0x7c6e79 gfc_conv_initializer(gfc_expr*, gfc_typespec*, tree_node*, bool, bool,
bool)
        ../../gcc/fortran/trans-expr.c:7983
0x7a756a gfc_get_symbol_decl(gfc_symbol*)
        ../../gcc/fortran/trans-decl.c:1918
0x7ab08f generate_local_decl
        ../../gcc/fortran/trans-decl.c:5955
0x75b472 do_traverse_symtree
        ../../gcc/fortran/symbol.c:4170
0x7ac5cc generate_local_vars
        ../../gcc/fortran/trans-decl.c:6161
0x7ac5cc gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6820
0x723fa6 translate_all_program_units
        ../../gcc/fortran/parse.c:6355
0x723fa6 gfc_parse_file()
        ../../gcc/fortran/parse.c:6624
0x770e5f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212