[Bug gcov-profile/114291] -fcompare-debug failure (length) with -fprofile-use at -O0

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114291

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
`Declarations used by main, sorted by DECL_UID` is printed by
dump_enumerated_decls

Which is caused by execute_cleanup_cfg_post_optimizing :
```
  if ((flag_compare_debug_opt || flag_compare_debug)
      && flag_dump_final_insns)
    {
...
          flag_dump_noaddr = flag_dump_unnumbered = 1;
          fprintf (final_output, "\n");
          dump_enumerated_decls (final_output,
                                 dump_flags | TDF_SLIM | TDF_NOUID);
          flag_dump_noaddr = save_noaddr;
          flag_dump_unnumbered = save_unnumbered;
```

That looks fine.

But I don't get why L0 is there in the -g case but not there without ...