[Bug c/123461] [16 Regression] ICE in mark_decl_used with some unsized array types

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123461

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 63858
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63858&action=edit
Patch which I am testing