---
src/glsl/opt_minmax.cpp | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/glsl/opt_minmax.cpp b/src/glsl/opt_minmax.cpp
index 49a816e..466db8c 100644
--- a/src/glsl/opt_minmax.cpp
+++ b/src/glsl/opt_minmax.cpp
@@ -293,6 +293,14 @@ get_range(ir_rvalue *rval)
high = larger_constant(r0.high,
abs(r0.low)->constant_expression_value());
return minmax_range(low, high);
+ case ir_unop_neg:
+ r0 = get_range(expr->operands[0]);
+ if (r0.high)
+ low = neg(r0.high)->constant_expression_value();
+ if (r0.low)
+ high = neg(r0.low)->constant_expression_value();
+ return minmax_range(low, high);
+
case ir_unop_sqrt:
case ir_unop_rsq:
case ir_unop_exp:
--
2.0.3
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
