extended functionality

[libfirm] / ir / ana / irdom_t.h

diff --git a/ir/ana/irdom_t.h b/ir/ana/irdom_t.h
index 9137bc4..6a15d3a 100644 (file)
--- a/ir/ana/irdom_t.h
+++ b/ir/ana/irdom_t.h
@@ -33,9 +33,9 @@ typedef struct dom_info {
                                           list of @c idom. */
   struct ir_node *first;               /**< The first node in the list of nodes
                                           this nodes dominates immediately. */
-  int tree_pre_num;                    /**< The pre-order number from a dfs walk
+  unsigned tree_pre_num;                       /**< The pre-order number from a dfs walk
                                           over the dominator tree. */
-  int max_subtree_pre_num;             /**< The largest tree pre num found in the
+  unsigned max_subtree_pre_num;                /**< The largest tree pre num found in the
                                           dominator subtree of this node. */
   int pre_num;                         /**< pre-order graph-walk number */
   int dom_depth;                       /**< depth in dominator-tree */