[Bug target/109896] Missed optimisation: overflow detection in multiplication instructions for operator new

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109896

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
With placement-new there's no allocation:
https://gcc.godbolt.org/z/68e4PaeYz