[Bug fortran/101349] New: ICE in gfc_get_descriptor_field, at fortran/trans-array.c:140

[gscfq--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101349

            Bug ID: 101349
           Summary: ICE in gfc_get_descriptor_field, at
                    fortran/trans-array.c:140
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gs...@t-online.de
  Target Milestone: ---

With a missing attribute allocatable or pointer :
(affects version down to r6)


$ cat z1.f90
subroutine s(x)
   class(*) :: x(:)
   allocate (x, source=['abc'])
end


$ cat z2.f90   # ok
subroutine s(x)
   class(*), allocatable :: x(:)
   allocate (x, source=['abc'])
end


$ gfortran-12-20210704 -c z1.f90
z1.f90:3:31:

    3 |    allocate (x, source=['abc'])
      |                               1
internal compiler error: in gfc_get_descriptor_field, at
fortran/trans-array.c:140
0x7ad4f0 gfc_get_descriptor_field
        ../../gcc/fortran/trans-array.c:140
0x7ae7bf gfc_conv_descriptor_dtype(tree_node*)
        ../../gcc/fortran/trans-array.c:215
0x7b46d0 gfc_array_init_size
        ../../gcc/fortran/trans-array.c:5562
0x7b46d0 gfc_array_allocate(gfc_se*, gfc_expr*, tree_node*, tree_node*,
tree_node*, tree_node*, tree_node*, tree_node**, gfc_expr*, tree_node*, bool)
        ../../gcc/fortran/trans-array.c:5982
0x8256b7 gfc_trans_allocate(gfc_code*)
        ../../gcc/fortran/trans-stmt.c:6736
0x7acb47 trans_code
        ../../gcc/fortran/trans.c:2090
0x7d31a4 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6898
0x759926 translate_all_program_units
        ../../gcc/fortran/parse.c:6464
0x759926 gfc_parse_file()
        ../../gcc/fortran/parse.c:6733
0x7a5c4f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:216