[Bug fortran/99817] New: [10/11 Regression] ICE in create_function_arglist, at fortran/trans-decl.c:2838 (etc.)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99817

            Bug ID: 99817
           Summary: [10/11 Regression] ICE in create_function_arglist, at
                    fortran/trans-decl.c:2838 (etc.)
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

Changed between 20210314 and 20210328 :


$ cat z1.f90
subroutine s1 (x)
   character(*) :: x(*)[*]
end


$ cat z2.f90
subroutine s2 (x)
   character(*), dimension(*), codimension[*] :: x
   integer :: i
   i = len(x)
end


$ gfortran-11-20210314 -c z1.f90 -fcoarray=lib
$ gfortran-11-20210314 -c z1.f90 -fcoarray=single
$ gfortran-11-20210328 -c z1.f90 -fcoarray=single
$
$ gfortran-11-20210328 -c z1.f90 -fcoarray=lib
z1.f90:1:13:

    1 | subroutine s1 (x)
      |             1
internal compiler error: Segmentation fault
0xc09d4f crash_signal
        ../../gcc/toplev.c:327
0x754ed9 create_function_arglist
        ../../gcc/fortran/trans-decl.c:2838
0x75a153 gfc_create_function_decl(gfc_namespace*, bool)
        ../../gcc/fortran/trans-decl.c:3089
0x7603b6 gfc_generate_function_code(gfc_namespace*)
        ../../gcc/fortran/trans-decl.c:6778
0x6e5de6 translate_all_program_units
        ../../gcc/fortran/parse.c:6351
0x6e5de6 gfc_parse_file()
        ../../gcc/fortran/parse.c:6620
0x7320ef gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:212