[Bug tree-optimization/125693] std::vector::insert(it, cref) crashes when sizeof(value_type) ≥ 8MiB

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125693

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
[res.on.arguments] would apply to v.emplace(v.begin(), std::move(v[1])) because
that violates the "no aliasing for rvalue references" rule. But my example
(intentionally) doesn't do that.