https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78104
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #3)
> (In reply to Markus Trippelsdorf from comment #0)
> > A simple example:
> >
> > int main() {
> > int *ob = new int();
> > delete ob;
> > }
> >
> > clang optimizes it away:
>
> Which is funny considering what Chris Lattner wrote in PR 23383 comment #4:
> This would not be legal, there is no reason operator new can't return a
> pointer that already exists in the program.
Note optimizing away is not about aliasing but recognizing a new/delete pair.
But yes, there are (plenty of) duplicates. Just go find them...
