[Bug c++/118386] Optimizations loose rvalue references from std::tuple and std::tuple

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118386

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
The code is undefined. The lifetime of a temporary is at the end of the
statement.