From a74f256c58a2c1fca3ce75e5199a04a22768450e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Daniel=20Sch=C3=BCrmann?= Date: Fri, 25 Jan 2019 12:48:44 +0100 Subject: [PATCH] nir/algebraic: add optimization pattern for ('ult', a, ('and', b, a)) and friends. These optimizations are based on the fact that 'and(a,b) <= umin(a,b)'. For AMD, this series moves the optimization from LLVM to NIR, so currently no vkpipeline-db changes here. Reviewed-by: Ian Romanick --- src/compiler/nir/nir_opt_algebraic.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index f1b5893be88..36e576b7eff 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -497,6 +497,10 @@ optimizations = [ (('ult', ('umax', a, b), a), False), (('uge', a, ('umax', b, a)), ('uge', a, b)), (('uge', ('umin', a, b), a), ('uge', b, a)), + (('ult', a, ('iand', b, a)), False), + (('ult', ('ior', a, b), a), False), + (('uge', a, ('iand', b, a)), True), + (('uge', ('ior', a, b), a), True), (('ilt', '#a', ('imax', '#b', c)), ('ior', ('ilt', a, b), ('ilt', a, c))), (('ilt', ('imin', '#a', b), '#c'), ('ior', ('ilt', a, c), ('ilt', b, c))), -- 2.30.2