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

[pinskia at gcc dot gnu.org]

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

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 64688
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64688&action=edit
testcase