[Bug c/109352] Feature request: warn about "u64 = u32 * u32" and similar

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109352

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
"similar expression causes interger overflow ". No it causes wrapping.