From 1130f82a88ff4e7960e5a8d72db41e1b98431446 Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Wed, 4 Jan 2017 16:21:34 +1100 Subject: 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 --- src/compiler/nir/nir_opt_algebraic.py | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/compiler/nir/nir_opt_algebraic.py') diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 434881f85bf..85cdc7bdaf9 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 -- cgit v1.2.3