+class loop_unroll_count : public ir_hierarchical_visitor {
+public:
+ int nodes;
+ bool fail;
+
+ loop_unroll_count(exec_list *list)
+ {
+ nodes = 0;
+ fail = false;
+
+ run(list);
+ }
+
+ virtual ir_visitor_status visit_enter(ir_assignment *ir)
+ {
+ nodes++;
+ return visit_continue;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_expression *ir)
+ {
+ nodes++;
+ return visit_continue;
+ }
+
+ virtual ir_visitor_status visit_enter(ir_loop *ir)
+ {
+ fail = true;
+ return visit_continue;
+ }
+};
+