[Mesa-dev] [PATCH] nir/validate: Allow subroutine types for the tails of derefs

[Jason Ekstrand]

bump!  Where are we at on this?

On Tue, Nov 10, 2015 at 6:16 PM, Dave Airlie <airlied at gmail.com> wrote:
>>>
>>> Well, it's not just a NIR thing  --  GLSL IR also effectively treats
>>> subroutines as integers. Actually, I wonder why the
>>> glsl_type::is_vector_or_scalar() doesn't return true for subroutine
>>> types in the first place.
>>
>> For that matter, why do we have a special subroutine type at all?  Why
>> doesn't the GLSL lowering pass create regular uint uniforms?  I don't
>> know.
>
> I'm not sure what reasoning I had at the time.
>
> It is probably something to do with how Mesa and GLSL IR are tied togetther for
> uniforms and requiring an extra type for it to make sense at the API level.
>
> Dave.