* @brief Optimize the frame type.
* @date 15.03.2006
* @author Michael Beck
- * @version $Id$
* @brief
* Optimize the frame type by removing unused type members.
*/
ir_entity *ent, *list;
ir_node *frame, *sel;
size_t i, n = get_class_n_members(frame_tp);
+ int o;
if (n <= 0)
return;
- irp_reserve_resources(irp, IR_RESOURCE_ENTITY_LINK);
+ assure_irg_properties(irg, IR_GRAPH_PROPERTY_CONSISTENT_OUTS);
+
+ irp_reserve_resources(irp, IRP_RESOURCE_ENTITY_LINK);
/* clear all entity links */
for (i = n; i > 0;) {
/* look for uses */
frame = get_irg_frame(irg);
- if (edges_activated(irg)) { /* use inplace edges */
- const ir_edge_t *edge;
-
- /* mark all used entities */
- foreach_out_edge(frame, edge) {
- sel = get_edge_src_irn(edge);
- if (is_Sel(sel)) {
- ent = get_Sel_entity(sel);
+ /* mark all used entities */
+ for (o = get_irn_n_outs(frame) - 1; o >= 0; --o) {
+ sel = get_irn_out(frame, o);
+ if (is_Sel(sel)) {
+ ent = get_Sel_entity(sel);
+ /* only entities on the frame */
+ if (get_entity_owner(ent) == frame_tp)
set_entity_link(ent, ent);
- }
- }
- } else {
- int i;
-
- /* use traditionally out edges */
- assure_irg_outs(irg);
-
- /* mark all used entities */
- for (i = get_irn_n_outs(frame) - 1; i >= 0; --i) {
- sel = get_irn_out(frame, i);
- if (is_Sel(sel)) {
- ent = get_Sel_entity(sel);
- /* only entities on the frame */
- if (get_entity_owner(ent) == frame_tp)
- set_entity_link(ent, ent);
- }
}
}
/* we changed the frame type, its layout should be redefined */
set_type_state(frame_tp, layout_undefined);
}
- irp_free_resources(irp, IR_RESOURCE_ENTITY_LINK);
+ irp_free_resources(irp, IRP_RESOURCE_ENTITY_LINK);
+
+ /* we changed the type, this affects none of the currently known graph
+ * properties, but I don't use ALL because I don't know if someone adds
+ * type-based properties at some point */
+ confirm_irg_properties(irg,
+ IR_GRAPH_PROPERTIES_CONTROL_FLOW
+ | IR_GRAPH_PROPERTY_NO_BADS
+ | IR_GRAPH_PROPERTY_NO_TUPLES
+ | IR_GRAPH_PROPERTY_CONSISTENT_OUT_EDGES
+ | IR_GRAPH_PROPERTY_CONSISTENT_OUTS
+ | IR_GRAPH_PROPERTY_CONSISTENT_ENTITY_USAGE
+ | IR_GRAPH_PROPERTY_MANY_RETURNS);
}
ir_graph_pass_t *opt_frame_irg_pass(const char *name)