Module: Mesa Branch: master Commit: 1130f82a88ff4e7960e5a8d72db41e1b98431446 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=1130f82a88ff4e7960e5a8d72db41e1b98431446
Author: Timothy Arceri <timothy.arc...@collabora.com> Date: Wed Jan 4 16:21:34 2017 +1100 nir: add another comparison simplification On BDW: total instructions in shared programs: 13061877 -> 13060965 (-0.01%) instructions in affected programs: 133569 -> 132657 (-0.68%) helped: 566 HURT: 0 total cycles in shared programs: 256611784 -> 256599536 (-0.00%) cycles in affected programs: 861016 -> 848768 (-1.42%) helped: 379 HURT: 73 Reviewed-by: Jason Ekstrand <ja...@jlekstrand.net> --- src/compiler/nir/nir_opt_algebraic.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 434881f..85cdc7b 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -150,6 +150,8 @@ optimizations = [ # inot(a) (('fge', 0.0, ('b2f', a)), ('inot', a)), + (('fge', ('fneg', ('b2f', a)), 0.0), ('inot', a)), + # 0.0 < fabs(a) # fabs(a) > 0.0 # fabs(a) != 0.0 because fabs(a) must be >= 0 _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit