On Wed, Jan 31, 2024 at 11:39:56PM -0800, Andi Kleen wrote:
> > This will run the test only once with -std=c++11. We'll get better coverage
> > with dropping the line above and using
> >
> > /* { dg-do compile { target { tail_call && { c || c++11 } } } } */
> >
> > but here it may not matter.
>
> The problem is that older C/C++ standards don't support [[]] attributes.
> It would make sense to say >= gnu++11 || >= c23 but I don't know how to
> express that.
That's what the c++11 target does. Unfortunately for C we don't have
anything like that, hence the additional-options adding c23.
Marek
