Ian Romanick
5ec75ca10d
This is especially helpful for a*isign(a) generated by idiv_by_const optimization. On many GPUs, isign(a) is lowered to imax(imin(a, 1), -1). There are no changes on fossil-db because ANV uses a different optimization path for idiv with a constant denominator. A future MR will change this. NOTE: This commit used to help a few hundred shader-db shaders, but now none are affected. I suspect this is due to some change in the idiv_by_const optimization. This could possibly be dropped. Reviewed-by: Caio Oliveira <caio.oliveira@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17718>