st/glsl_to_nir: disable st_nir_lower_builtin() when packing supported

There is no need to lower builtins when uniform packing is
supported by the driver. Lowering is only required by other drivers
because we prepack builtin uniforms.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3140
CC: <stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5656>
1 file changed