[Bug testsuite/80092] Add effective-target keywords for unsupported nvptx features

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80092

--- Comment #13 from Eric Gallager <egallager at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #11)
> (In reply to Eric Gallager from comment #10)
> > Have all of the changes committed from this bug fixed it?
> 
> No, I'm preparing some changes for stage1.

It's stage1 now.