Hello, Here's a respin of my SIMD8 VS input refactors, new GS input refactors, and finally the long-awaited SIMD8 GS support.
Patches 1-10 are input refactoring. Patches 11-23 are SIMD8 GS support. To try out SIMD8 GS, set the INTEL_SCALAR_GS=1 environment variable. Note that the feature requires Gen8+, and I've only tested Broadwell. Piglit passes with no regressions; I haven't had a chance to try dEQP yet. Synmark works. However, Orbital Explorer causes the GPU to hang. I'm not sure why yet; the shader is huge. I'll have to look into it. Future work: - vec4 VS input refactors (I have a patch, but there are a few bugs left) - vec4 GS input refactors (I think we can simplify more, I just did the bare minimum to keep it working across the nir_lower_io rework, and proved that it worked the way I wanted in my new backend...) - SIMD8 GS optimizations? Orbital Explorer is hurt badly - it goes from 2977 -> 7304 instructions, with 380 spills/1473 fills. - Tune the push/pull split point (I arbitrarily chose 32 registers). --Ken _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
