https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116518
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> ```
> __builtin_memcpy (_25, &MEM[(const struct array *)&D.94502]._M_elems, 3);
> D.94502 ={v} {CLOBBER(eos)};
> operator delete (_25, 3);
> ```
>
> The memcpy here is not deleted even though it is dead.
it's because 'operator delete' doesn't kill the storage, at least DSE
doesn't know about DECL_IS_OPERATOR_DELETE_P yet.
