Module: Mesa Branch: master Commit: ecc6c3d4ab31c6cd848bce02790000c165a02229 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ecc6c3d4ab31c6cd848bce02790000c165a02229
Author: Matt Turner <[email protected]> Date: Mon Feb 24 15:00:44 2014 -0800 glsl: Optimize lrp(0, y, a) into y * a. Helps two programs in shader-db: instructions in affected programs: 254 -> 234 (-7.87%) Reviewed-by: Ian Romanick <[email protected]> --- src/glsl/opt_algebraic.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index 1b4d319..28f95a4 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -568,6 +568,8 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) return ir->operands[1]; } else if (ir->operands[0]->equals(ir->operands[1])) { return ir->operands[0]; + } else if (is_vec_zero(op_const[0])) { + return mul(ir->operands[1], ir->operands[2]); } break; _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
