[Bug c++/65390] ICE in strip_typedefs, at cp/tree.c:1361

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65390

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced:

template<typename T> struct shared_ptr { };

template<typename T, typename Arg>
shared_ptr<T> make_shared(Arg) { return {}; }

auto f(int n){
  return make_shared<int[n]>(1);
}