On Wed, Oct 22, 2014 at 12:49 PM, Dieter Nützel Dieter@nuetzel-hh.de wrote:
Hello Michel,
subject say it all ;-)
The llvm support for r600g is for compute (OpenCL). The fact that is it somewhat usable for graphics is mainly for testing purposes. There are no plans to expand it to handle additional graphics features, although any interested parties are welcome to contribute to improving it. IIRC, even when you enable it, it currently only gets applied to compute shaders.
Second, we are now nearly on par with 3.16 on RV730 (AGP) with all your latest work, but I think about what we could get if we find the right commit between 3.16 (.4 here) and 3.17-rc1 (the transition from 3.16 to 3.17-next).
I do not have 3.16.x around (it is not any longer in the openSUSE kernel current tree) but with latest 3.16.4 I was faster then with all 3.17.x and 3.18/3.19-next kernels.
bisect do not work right or I couldn't revert the 'right' commit. WC helped on RV730 (AGP) with some apps, here:
How are you doing the bisection? If it's purely a performance issue it should be pretty straight forward.
mesa-demos e.g. vsraytrace fsraytrace objview
Any ideas?
Can you provide some additional detail? It would probably be easier to track this in a bug report.
Alex