make schedule dumper more robust/cleanup

[libfirm] / ir / be / beinfo.c

diff --git a/ir/be/beinfo.c b/ir/be/beinfo.c
index cada5c5..fbda0b7 100644 (file)
--- a/ir/be/beinfo.c
+++ b/ir/be/beinfo.c
@@ -176,23 +176,26 @@ void be_info_init(void)
  */
 static void sched_edge_hook(FILE *F, const ir_node *irn)
 {
-       if (get_irn_irg(irn)->be_data == NULL)
+       ir_graph *irg = get_irn_irg(irn);
+       if (!irg_is_constrained(irg, IR_GRAPH_CONSTRAINT_BACKEND))
+               return;
+
+       if (is_Proj(irn) || is_Block(irn) || !sched_is_scheduled(irn))
                return;
 
-       if (!is_Proj(irn) && sched_is_scheduled(irn) && !is_Block(irn)) {
-               ir_node *const prev = sched_prev(irn);
-               if (!sched_is_begin(prev)) {
-                       fprintf(F, "edge:{sourcename: ");
-                       print_nodeid(F, irn);
-                       fprintf(F, " targetname: ");
-                       print_nodeid(F, prev);
-                       fprintf(F, " color:magenta}\n");
-               }
+       ir_node *const prev = sched_prev(irn);
+       if (!sched_is_begin(prev)) {
+               fprintf(F, "edge:{sourcename: ");
+               print_nodeid(F, irn);
+               fprintf(F, " targetname: ");
+               print_nodeid(F, prev);
+               fprintf(F, " color:magenta}\n");
        }
 }
 
 void be_info_init_irg(ir_graph *irg)
 {
+       add_irg_constraints(irg, IR_GRAPH_CONSTRAINT_BACKEND);
        irg_walk_anchors(irg, init_walker, NULL, NULL);
 
        set_dump_node_edge_hook(sched_edge_hook);