Why are my tests for vector constexpr not being run, labelled as "UNSUPPORTED"?

[Jonathan Wakely]

On Fri, 11 Dec 2020, 22:23 Josh Marshall via Libstdc++, <
libstdc++@gcc.gnu.org> wrote:

> Hello all,
>
> I have a decent number of tests finally written, and I should get a PR in
> soon.  But before all that, I can't seem to get the tests I wrote to run.
> In the logs, they are found and labelled "UNSUPPORTED".
>
> Just updated against master, work at https://gitlab.com/anadon/gcc
>

The dg-options directives that add -std=gnu++20 need to come before the
dg-do directives that limit the tests to c++2a only.

Otherwise the -std option isn't in use by the time the check for c++2a is
done.