[Bug c++/110084] New: defaulted constexpr operator== causes crash

[nikolasklauser at berlin dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110084

            Bug ID: 110084
           Summary: defaulted constexpr operator== causes crash
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nikolasklauser at berlin dot de
  Target Milestone: ---

template <class T>
class BadTuple {
  constexpr bool operator==(const BadTuple&) const;
};
template<class T>
constexpr bool BadTuple<T>::operator==(const BadTuple<T>&) const = default;

BadTuple<int> a;

causes GCC to crash.

https://godbolt.org/z/veG6hEeP3