D3D booleans use a 32-bit 0/-1 representation. Because this previously matched NIR exactly, we didn't have to really optimize for it. Now that we have 1-bit booleans, we need some specific optimizations to chew through the D3D12-style booleans. --- src/compiler/nir/nir_opt_algebraic.py | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index f0861c4411d..4d778e4b308 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -239,6 +239,7 @@ optimizations = [ (('fne', ('b2f', a), 0.0), a), (('ieq', ('b2i', a), 0), ('inot', a)), (('ine', ('b2i', a), 0), a), + (('ine', ('ineg', ('b2i', a)), 0), a), (('fne', ('u2f32', a), 0.0), ('ine', a, 0)), (('feq', ('u2f32', a), 0.0), ('ieq', a, 0)), @@ -528,6 +529,18 @@ optimizations = [ (('bcsel', a, b, b), b), (('fcsel', a, b, b), b), + # D3D Boolean eumulation + (('bcsel', a, -1, 0), ('ineg', ('b2i', a))), + (('bcsel', a, 0, -1), ('ineg', ('b2i', ('inot', a)))), + (('iand', ('ineg', ('b2i', a)), ('ineg', ('b2i', b))), + ('ineg', ('b2i', ('iand', a, b)))), + (('ior', ('ineg', ('b2i', a)), ('ineg', ('b2i', b))), + ('ineg', ('b2i', ('ior', a, b)))), + (('ieq', ('ineg', ('b2i', a)), 0), ('inot', a)), + (('ieq', ('ineg', ('b2i', a)), -1), a), + (('ine', ('ineg', ('b2i', a)), 0), a), + (('ine', ('ineg', ('b2i', a)), -1), ('inot', a)), + # Conversions (('i2b', ('b2i', a)), a), (('f2i32', ('ftrunc', a)), ('f2i32', a)), -- 2.19.1 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev