We have ir_rvalues for various fields within ir_ssbo_store, so we want
constant folding to know about them. Specifically, the offset of the
store operation can be computed as the addition of a constant offset
and a constant base offset, so we want that constant addition replaced
with its constant result.
---
src/glsl/opt_constant_folding.cpp | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/src/glsl/opt_constant_folding.cpp
b/src/glsl/opt_constant_folding.cpp
index 4aae3f0..4cc9f68 100644
--- a/src/glsl/opt_constant_folding.cpp
+++ b/src/glsl/opt_constant_folding.cpp
@@ -53,6 +53,7 @@ public:
virtual ir_visitor_status visit_enter(ir_discard *ir);
virtual ir_visitor_status visit_enter(ir_assignment *ir);
virtual ir_visitor_status visit_enter(ir_call *ir);
+ virtual ir_visitor_status visit_enter(ir_ssbo_store *ir);
virtual void handle_rvalue(ir_rvalue **rvalue);
@@ -179,6 +180,21 @@ ir_constant_folding_visitor::visit_enter(ir_call *ir)
return visit_continue_with_parent;
}
+ir_visitor_status
+ir_constant_folding_visitor::visit_enter(ir_ssbo_store *ir)
+{
+ ir->block->accept(this);
+ handle_rvalue(&ir->block);
+
+ ir->offset->accept(this);
+ handle_rvalue(&ir->offset);
+
+ ir->val->accept(this);
+ handle_rvalue(&ir->val);
+
+ return visit_continue_with_parent;
+}
+
bool
do_constant_folding(exec_list *instructions)
{
--
1.9.1
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
