---
With this, we generate the same number of Mesa IR instructions before
and after my series. all() is the same as well.
src/mesa/program/ir_to_mesa.cpp | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 8160f8e..852655d 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -1113,7 +1113,13 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
if (ir->operands[0]->type->is_vector() ||
ir->operands[1]->type->is_vector()) {
src_reg temp = get_temp(glsl_type::vec4_type);
- emit(ir, OPCODE_SNE, dst_reg(temp), op[0], op[1]);
+ if (ir->operands[0]->type->is_boolean() &&
+ ir->operands[1]->as_constant() &&
+ ir->operands[1]->as_constant()->is_zero()) {
+ temp = op[0];
+ } else {
+ emit(ir, OPCODE_SNE, dst_reg(temp), op[0], op[1]);
+ }
/* After the dot-product, the value will be an integer on the
* range [0,4]. Zero stays zero, and positive values become 1.0.
--
2.4.9
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