[Bug c++/96533] ICE with three-way comparison when error occurs in templated operator< overload and -Wunused-parameter

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96533

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 52014
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52014&action=edit
Reduced as I can get it right now