Chia-I Wu <olva...@gmail.com> writes: > Hi Eric, > The frame rate of Unigine Tropics (with low shader quality) dropped > from 40.8 to 23.5 after this change.
Thanks for the note. I see the regression as well, and I see a shader that's started spilling. It looks like we can drop the regs_written <= 1 check on gen7+'s pre-regalloc scheduling to fix the problem (the MRF setup thing is no longer an issue, and its presence is now making us pessimize instead of optimize in general in the pre-regalloc scheduling). I'll want to run a few more tests to make sure that this doesn't regress something else. This shader is also in bad shape now that we don't have the redundant MRF move optimization, and we need to look into grf_size > 1 CSE. That would probably also have avoided the problem on this shader, though the scheduling problem is more general than this one shader.
pgp56dihFWI44.pgp
Description: PGP signature
_______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
