ir_op added

[libfirm] / ir / ir / iredges_t.h

diff --git a/ir/ir/iredges_t.h b/ir/ir/iredges_t.h
index 9aca773..18b224d 100644 (file)
--- a/ir/ir/iredges_t.h
+++ b/ir/ir/iredges_t.h
@@ -37,14 +37,14 @@
  * An edge.
  */
 struct _ir_edge_t {
-#ifdef DEBUG_libfirm
-  long src_nr;            /**< The node number of the source node. */
-#endif
   ir_node *src;           /**< The source node of the edge. */
   int pos;                /**< The position of the edge at @p src. */
   unsigned invalid : 1;   /**< edges that are removed are marked invalid. */
   unsigned present : 1;   /**< Used by the verifier. Don't rely on its content. */
   struct list_head list;  /**< The list head to queue all out edges at a node. */
+#ifdef DEBUG_libfirm
+  long src_nr;            /**< The node number of the source node. */
+#endif
 };
 
 /**
@@ -167,7 +167,15 @@ static INLINE int _get_edge_src_pos(const ir_edge_t *edge)
  */
 static INLINE int _get_irn_n_edges(const ir_node *irn)
 {
-  return _get_irn_edge_info(irn)->out_count;
+/* Perhaps out_count was buggy. This code does it more safely.
+
+       int res = 0;
+       struct list_head *pos, *head = _get_irn_outs_head(irn);
+       list_for_each(pos, head)
+               res++;
+       return res;
+*/
+       return _get_irn_edge_info(irn)->out_count;
 }
 
 static INLINE int _edges_activated(const ir_graph *irg)
@@ -189,8 +197,15 @@ void edges_reroute(ir_node *old, ir_node *nw, ir_graph *irg);
 
 void edges_init_graph(ir_graph *irg);
 
+/**
+ * Notify of a edge change.
+ * The edge from (src, pos) -> old_tgt is redirected to tgt
+ */
 void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt, ir_graph *irg);
 
+/**
+ * A node is deleted.
+ */
 void edges_node_deleted(ir_node *old, ir_graph *irg);
 
 void edges_invalidate(ir_node *irn, ir_graph *irg);