bisect in progress between 6027d354d1d and 45b5f5fa25b
8d8222461f9d7f497d657c2c0eff70820986429b is the first bad commit commit 8d8222461f9d7f497d657c2c0eff70820986429b Author: Jason Ekstrand <jason.ekstrand@intel.com> Date: Mon Jul 23 22:20:41 2018 -0700 intel/nir: Enable nir_opt_find_array_copies We have to be a bit careful with this one because we want it to run in the optimization loop but only in the first brw_nir_optimize call. Later calls assume that we've lowered away copy_deref instructions and we don't want to introduce any more. Shader-db results on Kaby Lake: total instructions in shared programs: 15176942 -> 15176942 (0.00%) instructions in affected programs: 0 -> 0 helped: 0 HURT: 0 In spite of the lack of any shader-db improvement, this patch completely eliminates spilling in the Batman: Arkham City tessellation shaders. This is because we are now able to detect that the temporary array created by DXVK for storing TCS inputs is a copy of the input arrays and use indirect URB reads instead of making a copy of 4.5 KiB of input data and then indirecting on it with if-ladders. Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Not sure how I missed that this was written up a bit earlier... *** This bug has been marked as a duplicate of bug 107706 ***
Moving duplicate to a bug that's still open (Timothy closed newer and re-opened the older bug). *** This bug has been marked as a duplicate of bug 107510 ***
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