[Bug fortran/104556] New: ICE in gfc_conv_class_to_class, at fortran/trans-expr.cc:1267

[Bug fortran/104556] New: ICE in gfc_conv_class_to_class, at fortran/trans-expr.cc:1267

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104556

            Bug ID: 104556
           Summary: ICE in gfc_conv_class_to_class, at
                    fortran/trans-expr.cc:1267
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Starts with r9 (r12 changed between 20210502 and 20210509) :
(one leap away from pr103389)


$ cat z1.f90
subroutine sub(y)
   class(*) :: y(*)
   call s((y))
contains
   subroutine s(x)
      class(*) :: x(..)
   end
end


$ cat z2.f90
program p
contains
   subroutine sub(y)
      class(*) :: y(*)
      call s((y))
   end
   subroutine s(x)
      class(*) :: x(..)
   end
end


$ gfortran-12-20220213 -c z1.f90
z1.f90:3:14:

    3 |    call s((y))
      |              1
internal compiler error: Segmentation fault
0xcc8a9f crash_signal
        ../../gcc/toplev.cc:322
0x7d9c86 gfc_conv_class_to_class(gfc_se*, gfc_expr*, gfc_typespec, bool, bool,
bool, bool)
        ../../gcc/fortran/trans-expr.cc:1267
0x7e3532 gfc_conv_procedure_call(gfc_se*, gfc_symbol*, gfc_actual_arglist*,
gfc_expr*, vec<tree_node*, va_gc, vl_embed>*)
        ../../gcc/fortran/trans-expr.cc:6729
0x81f690 gfc_trans_call(gfc_code*, bool, tree_node*, tree_node*, bool)
        ../../gcc/fortran/trans-stmt.cc:422
0x7a7928 trans_code
        ../../gcc/fortran/trans.cc:1984
0x7d093e gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.cc:7654
0x75367e translate_all_program_units
        ../../gcc/fortran/parse.cc:6651
0x75367e gfc_parse_file()
        ../../gcc/fortran/parse.cc:6938
0x7a066f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.cc:216

[Bug fortran/104556] ICE in gfc_conv_class_to_class, at fortran/trans-expr.cc:1267 since r12-570-ga2c593009fef1564

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104556

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|ICE in                      |ICE in
                   |gfc_conv_class_to_class, at |gfc_conv_class_to_class, at
                   |fortran/trans-expr.cc:1267  |fortran/trans-expr.cc:1267
                   |                            |since
                   |                            |r12-570-ga2c593009fef1564
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
                 CC|                            |marxin at gcc dot gnu.org,
                   |                            |pault at gcc dot gnu.org
   Last reconfirmed|                            |2022-02-24

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r12-570-ga2c593009fef1564.