Module: Mesa Branch: master Commit: 74697e2844a0850ef6b91fb4d34bfa3f6f4bff32 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=74697e2844a0850ef6b91fb4d34bfa3f6f4bff32
Author: Matt Turner <[email protected]> Date: Tue May 5 19:50:58 2015 -0700 nir: Recognize imul(b2i(a), b2i(b)) as a logical AND. Four shaders in Unreal 4's Sun Temple are helped, and gain SIMD16 because we avoid an integer multiplication. instructions in affected programs: 2353 -> 2245 (-4.59%) helped: 4 GAINED: 4 Reviewed-by: Jordan Justen <[email protected]> Reviewed-by: Glenn Kennard <[email protected]> --- src/glsl/nir/nir_opt_algebraic.py | 1 + 1 file changed, 1 insertion(+) diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py index 2a2b956..92928cf 100644 --- a/src/glsl/nir/nir_opt_algebraic.py +++ b/src/glsl/nir/nir_opt_algebraic.py @@ -101,6 +101,7 @@ optimizations = [ (('seq', a, b), ('b2f', ('feq', a, b)), 'options->lower_scmp'), (('sne', a, b), ('b2f', ('fne', a, b)), 'options->lower_scmp'), # Emulating booleans + (('imul', ('b2i', a), ('b2i', b)), ('b2i', ('iand', a, b))), (('fmul', ('b2f', a), ('b2f', b)), ('b2f', ('iand', a, b))), (('fsat', ('fadd', ('b2f', a), ('b2f', b))), ('b2f', ('ior', a, b))), (('iand', 'a@bool', 1.0), ('b2f', a)), _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
