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

[boris at kolpackov dot net via Gcc-bugs]

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

--- Comment #1 from Boris Kolpackov <boris at kolpackov dot net> ---
Created attachment 61668
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61668&action=edit
Reproducer