[Bug c++/108104] ICE in unify, at cp/pt.c:24333 with template partial specialization and pointer to memeber function and nullptr

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108104

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
      Known to fail|                            |5.1.0
   Last reconfirmed|                            |2022-12-14

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Before GCC 5, we produced:
<source>:5:48: internal compiler error: unexpected expression '(void
(ss::*)())(nullptr)' of kind cast_expr
 template <int state> struct Fred<state, nullptr> {};
                                                ^