[Bug c++/101421] New: ICE: in lookup_template_class_1, at cp/pt.c:10005

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101421

            Bug ID: 101421
           Summary: ICE: in lookup_template_class_1, at cp/pt.c:10005
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

template <class>
concept C = []<auto>{}.operator()<>;

static_assert(C<int>);

https://godbolt.org/z/3erTG3M6q