Series is
Reviewed-by: Ian Romanick <ian.d.roman...@intel.com>
Though we'll eventually want to generalize patch 3.
On 02/24/2014 03:00 PM, Matt Turner wrote:
Helps two programs in shader-db:
instructions in affected programs: 254 -> 234 (-7.87%)
---
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;
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