[Bug fortran/66057] New: ICE for incomplete generic statement (gfc_match_generic)

["gerhard dot steinmetz dot fortran at t-online dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66057

            Bug ID: 66057
           Summary: ICE for incomplete generic statement
                    (gfc_match_generic)
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gerhard.steinmetz.fortran@t-online.de
  Target Milestone: ---

This code fragment with an incomplete generic statement ...
   program p
      type t
      contains
      generic :: !
      end type
   end

or this variation ...
   program p
      type t
      contains
      generic :: ;
      end type
   end

produces (with gfortran 5.1.1 on SUSE Linux 13.2, 64 bit)
f951: internal compiler error: in gfc_match_generic, at fortran/decl.c:8514

---

Other illegal characters produce the same error :
   program p
      type t
      contains
      generic :: 1
      generic :: 2
      generic :: .
      generic :: ,
      generic :: +
      generic :: -
      generic :: *
      generic :: /
      generic :: =
      generic :: '
      generic :: "
      generic :: %
      generic :: ?
      generic :: (
      generic :: )
      !...
      generic :: 1 =
      generic :: 1 =>
      generic :: 1 => 2
      generic :: 1 => x
      !...
      end type
   end

Kind regards.