[Bug c/12663] New: cc1 crashes when no source file given

["segher at kernel dot crashing dot org" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12663

           Summary: cc1 crashes when no source file given
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: segher at kernel dot crashing dot org
                CC: gcc-bugs at gcc dot gnu dot org,segher at kernel dot
                    crashing dot org
 GCC build triplet: i686-unknown-linux-gnu
  GCC host triplet: i686-unknown-linux-gnu
GCC target triplet: powerpc-unknown-linux-gnu

$ ./cc1
cc1: internal compiler error: Segmentation fault
...


It crashes in the following code in toplev.c:

1406    void
1407    output_file_directive (FILE *asm_file, const char *input_name)
1408    {
1409      int len = strlen (input_name);

(input_name == 0.  Whoops).