Helps one program in shader-db:
instructions in affected programs: 96 -> 92 (-4.17%)
---
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 28f95a4..778638c 100644
--- a/src/glsl/opt_algebraic.cpp
+++ b/src/glsl/opt_algebraic.cpp
@@ -570,6 +570,8 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
return ir->operands[0];
} else if (is_vec_zero(op_const[0])) {
return mul(ir->operands[1], ir->operands[2]);
+ } else if (is_vec_zero(op_const[1])) {
+ return add(ir->operands[0], neg(mul(ir->operands[0],
ir->operands[2])));
}
break;
--
1.8.3.2
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