From c8e8f660365515560af029651e593f7ee700401c Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Tue, 17 Mar 2015 23:28:27 -0700 Subject: [PATCH] glsl: Recognize mul(b2f(a), b2f(b)) as a logical AND. Transform this into b2f(and(a, b)). total instructions in shared programs: 6190291 -> 6189225 (-0.02%) instructions in affected programs: 267247 -> 266181 (-0.40%) helped: 866 Reviewed-by: Ian Romanick --- src/glsl/opt_algebraic.cpp | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index 69c03ea8be7..0d1f3fcf52c 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -518,6 +518,10 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) if (is_vec_negative_one(op_const[1])) return neg(ir->operands[0]); + if (op_expr[0] && op_expr[0]->operation == ir_unop_b2f && + op_expr[1] && op_expr[1]->operation == ir_unop_b2f) { + return b2f(logic_and(op_expr[0]->operands[0], op_expr[1]->operands[0])); + } /* Reassociate multiplication of constants so that we can do * constant folding. -- 2.30.2