[Bug tree-optimization/120727] Bogus -Warray-bounds on std::vector::push_back() with -O2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120727

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am sure this is a false positive since there is no such thing as unsigned
overflow. It is always wrapping.