[Bug c++/105885] [12/13 Regression] the address of 'template argument' will never be NULL warning

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105885

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
We diagnose only after template substitution where we cannot distinguish
literal if (nullptr == nullptr) from if (ARG == nullptr) I think.

I guess reporters reasoning is that ARG is defaulted to nullptr and that's the
reason the diagnostic is unwanted?