[Mesa-dev] [PATCH v2 7/7] i965: make use of nir linking

[Eero Tamminen]

Hi,

On 26.09.2017 12:04, Timothy Arceri wrote:
> On 26/09/17 17:50, Kenneth Graunke wrote:
[...]
>> 2. It would be great to use this in anv as well, especially given that
>>     it has no GLSL IR linking to do this sort of stuff.  Plus, the SPIR-V
>>     might be compiled independently...and when you build the pipeline,
>>     you have all the stages and can do cross-stage linking optimizations
>>     like this.
> 
> Yeah the reason for doing this was to eventually add it to radv. i965 
> was just a nicer place to test it, same goes for the passes that will 
> follow. Right now the biggest blocked is justifying the added complexity 
> as there isn't a standard shader-db like tool, and it's not making any 
> noticeable differences in any benchmarks.

I think the old GLBenchmark v2.5 / v2.7 tests (e.g. Egypt) might be 
something where cross-stage linking optimizations impact could show up.


	- Eero