https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113835
--- Comment #18 from Jason Merrill <jason at gcc dot gnu.org> --- If I increase the limits (or reduce N) enough that we get through the whole evaluation, constant-evaluation still fails right at the end because the result refers to the result of operator new and we don't have non-transient constexpr allocation (P3554) yet. I'm not sure how we could shortcut that failure in general, but I suppose we could recognize std::vector and bail out early.
