The GLSL IR optimization pass contained these; we may as well include them too.
No change in the number of NIR instructions on a shader-db run. total i965 instructions in shared programs: 6035397 -> 6035393 (-0.00%) i965 instructions in affected programs: 772 -> 768 (-0.52%) helped: 3 (all in glamor) Signed-off-by: Kenneth Graunke <[email protected]> --- src/glsl/nir/nir_opt_algebraic.py | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index cf16b19..58e71e0 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -83,6 +83,13 @@ optimizations = [ # DeMorgan's Laws (('iand', ('inot', a), ('inot', b)), ('inot', ('ior', a, b))), (('ior', ('inot', a), ('inot', b)), ('inot', ('iand', a, b))), + # Shift optimizations + (('ishl', 0, a), 0), + (('ishl', a, 0), 0), + (('ishr', 0, a), 0), + (('ishr', a, 0), 0), + (('ushr', 0, a), 0), + (('ushr', a, 0), 0), # This one may not be exact (('feq', ('fadd', a, b), 0.0), ('feq', a, ('fneg', b))), -- 2.2.2 _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
