Now that all consumers of GLSL use NIR, make the remaining drivers take
the path that relies on NIR to really do optimization.
nouveau steam shader-db runtime -6.69631% +/- 1.29235% (n=12).
No change on shader-db there.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16364>