[Bug c++/66857] [5/6 Regression] Reference not bound to lvalue

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66857

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The gimple dump shows a temporary int being created from the global, and the
temporary is passed to the constructor.