[Bug fortran/87907] New: ICE in resolve_contained_fntype, at fortran/resolve.c:587

[gscfq@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87907

            Bug ID: 87907
           Summary: ICE in resolve_contained_fntype, at
                    fortran/resolve.c:587
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gscfq@t-online.de
  Target Milestone: ---

With an interface mismatch since version 6 :


$ cat z1.f90
module m
   interface
      module function g(x) result(z)
         integer, intent(in) :: x
         integer, allocatable :: z
      end
   end interface
end
submodule(m) m2
contains
   subroutine g(x)
   end
end
program p
   use m
   integer :: x = 3
   call g(x)
end


$ gfortran-9-20181104 -c z1.f90
f951: internal compiler error: Segmentation fault
0xb205df crash_signal
        ../../gcc/toplev.c:325
0x67a9fc resolve_contained_fntype
        ../../gcc/fortran/resolve.c:587
0x681156 resolve_contained_functions
        ../../gcc/fortran/resolve.c:1134
0x681156 resolve_types
        ../../gcc/fortran/resolve.c:16608
0x68613c gfc_resolve(gfc_namespace*)
        ../../gcc/fortran/resolve.c:16733
0x673d02 gfc_parse_file()
        ../../gcc/fortran/parse.c:6266
0x6bc03f gfc_be_parse_file
        ../../gcc/fortran/f95-lang.c:204