[Bug tree-optimization/107927] vector::push_back gives array bounds warning with optimization and undefined sanitizer

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107927

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
In the original <vector> code that should be:

          const size_type __n = std::distance(__first, __last);