On Fri, May 30, 2014 at 9:22 PM, Eric Anholt <e...@anholt.net> wrote: > However, talking yesterday about SSA and vector representations, we > again failed to come up with anything that sounded compelling -- it > appears that SSA is going to make obvious optimizations like dead code > elimination in a vec4 IR harder. Ken and Matt pretty well convinced me > that any new IR we work on should probably be scalar -- 965 is mostly > scalar getting more so, my next project is scalar, and as far as I know > current radeon and nouveau is scalar. > > Is anyone working on hardware with vector instructions these days?
Yes, the Tegra vertex shader ISA is NV30/40, which is vector. Also, the Lima-guys might not be happy with a scalar-only ISA. Neither of these are supported in Mesa today, but Freedreno supports Adreno 2xx, Nouveau supports NV30/40, and there's the AMD R300 driver, all vector hardware. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
