[Bug tree-optimization/109045] assume attribute does not always optimize std::optional cases

[thiago at kde dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109045

--- Comment #4 from Thiago Macieira <thiago at kde dot org> ---
Even then those are function calls. But at the state of art of both compilers,
we can't assume on results of calls.