* @summary
* Optimize the frame type by removing unused type members.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include "iroptimize.h"
#include "irgraph_t.h"
* never touched entities.
*/
void opt_frame_irg(ir_graph *irg) {
- ir_type *frame_tp = get_irg_frame_type(irg);
- ir_entity *ent, *list;
- ir_node *frame, *sel;
- int i, n = get_class_n_members(frame_tp);
+ ir_type *frame_tp = get_irg_frame_type(irg);
+ ir_entity *ent, *list;
+ ir_node *frame, *sel;
+ int i, n = get_class_n_members(frame_tp);
- assert(get_irg_phase_state(irg) == phase_high && "Graph must be in high phase");
- if (n <= 0)
- return;
+ if (n <= 0)
+ return;
- /* clear all entity links */
- for (i = n - 1; i >= 0; --i) {
- ent = get_class_member(frame_tp, i);
- set_entity_link(ent, NULL);
- }
+ irp_reserve_resources(irp, IR_RESOURCE_ENTITY_LINK);
- /* look for uses */
- frame = get_irg_frame(irg);
+ /* clear all entity links */
+ for (i = n - 1; i >= 0; --i) {
+ ent = get_class_member(frame_tp, i);
+ set_entity_link(ent, NULL);
+ }
- if (edges_activated(irg)) { /* use inplace edges */
- const ir_edge_t *edge;
+ /* look for uses */
+ frame = get_irg_frame(irg);
- /* mark all used entities */
- foreach_out_edge(frame, edge) {
- sel = get_edge_src_irn(edge);
- ent = get_Sel_entity(sel);
- set_entity_link(ent, ent);
- }
- }
- else {
- /* use traditionally out edges */
- if (get_irg_outs_state(irg) != outs_consistent)
- compute_irg_outs(irg);
+ if (edges_activated(irg)) { /* use inplace edges */
+ const ir_edge_t *edge;
- /* mark all used entities */
- for (i = get_irn_n_outs(frame) - 1; i >= 0; --i) {
- sel = get_irn_out(frame, i);
- ent = get_Sel_entity(sel);
- set_entity_link(ent, ent);
- }
- }
+ /* mark all used entities */
+ foreach_out_edge(frame, edge) {
+ sel = get_edge_src_irn(edge);
+ ent = get_Sel_entity(sel);
+ set_entity_link(ent, ent);
+ }
+ } else {
+ /* use traditionally out edges */
+ assure_irg_outs(irg);
- /* link unused ones */
- list = NULL;
- for (i = n - 1; i >= 0; --i) {
- ent = get_class_member(frame_tp, i);
- if (get_entity_link(ent) == NULL) {
- set_entity_link(ent, list);
- list = ent;
- }
- }
+ /* mark all used entities */
+ for (i = get_irn_n_outs(frame) - 1; i >= 0; --i) {
+ sel = get_irn_out(frame, i);
+ ent = get_Sel_entity(sel);
+ set_entity_link(ent, ent);
+ }
+ }
- if (list) {
- /* delete list members */
- for (ent = list; ent; ent = list) {
- list = get_entity_link(ent);
- remove_class_member(frame_tp, ent);
- }
- /* we changed the frame type, it's layout should be redefined */
- set_type_state(frame_tp, layout_undefined);
- }
+ /* link unused ones */
+ list = NULL;
+ for (i = n - 1; i >= 0; --i) {
+ ent = get_class_member(frame_tp, i);
+ if (get_entity_link(ent) == NULL) {
+ set_entity_link(ent, list);
+ list = ent;
+ }
+ }
+
+ if (list != NULL) {
+ /* delete list members */
+ for (ent = list; ent; ent = list) {
+ list = get_entity_link(ent);
+ remove_class_member(frame_tp, ent);
+ }
+ /* we changed the frame type, it's layout should be redefined */
+ set_type_state(frame_tp, layout_undefined);
+ }
+ irp_free_resources(irp, IR_RESOURCE_ENTITY_LINK);
}