tree-cfg.c (verify_node_sharing_1): Split out from ...

2013-01-11  Richard Biener  <rguenther@suse.de>

	* tree-cfg.c (verify_node_sharing_1): Split out from ...
	(verify_node_sharing): ... here.
	(verify_gimple_in_cfg): Use verify_node_sharing_1 for walk_tree.

From-SVN: r195107

gcc/ChangeLog

+2013-01-11  Richard Biener  <rguenther@suse.de>
+
+	* tree-cfg.c (verify_node_sharing_1): Split out from ...
+	(verify_node_sharing): ... here.
+	(verify_gimple_in_cfg): Use verify_node_sharing_1 for walk_tree.
+
 2013-01-11  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* configure.ac (Tree checking): Set TREECHECKING to yes if enabled.

gcc/tree-cfg.c

@@ -4462,13 +4462,12 @@ tree_node_can_be_shared (tree t)
   return false;
 }
 
-/* Called via walk_gimple_stmt.  Verify tree sharing.  */
+/* Called via walk_tree.  Verify tree sharing.  */
 
 static tree
-verify_node_sharing (tree *tp, int *walk_subtrees, void *data)
+verify_node_sharing_1 (tree *tp, int *walk_subtrees, void *data)
 {
-  struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
-  struct pointer_set_t *visited = (struct pointer_set_t *) wi->info;
+  struct pointer_set_t *visited = (struct pointer_set_t *) data;
 
   if (tree_node_can_be_shared (*tp))
     {
@@ -4482,6 +4481,15 @@ verify_node_sharing (tree *tp, int *walk_subtrees, void *data)
   return NULL;
 }
 
+/* Called via walk_gimple_stmt.  Verify tree sharing.  */
+
+static tree
+verify_node_sharing (tree *tp, int *walk_subtrees, void *data)
+{
+  struct walk_stmt_info *wi = (struct walk_stmt_info *) data;
+  return verify_node_sharing_1 (tp, walk_subtrees, wi->info);
+}
+
 static bool eh_error_found;
 static int
 verify_eh_throw_stmt_node (void **slot, void *data)
@@ -4534,7 +4542,8 @@ verify_gimple_in_cfg (struct function *fn)
 	  for (i = 0; i < gimple_phi_num_args (phi); i++)
 	    {
 	      tree arg = gimple_phi_arg_def (phi, i);
-	      tree addr = walk_tree (&arg, verify_node_sharing, visited, NULL);
+	      tree addr = walk_tree (&arg, verify_node_sharing_1,
+				     visited, NULL);
 	      if (addr)
 		{
 		  error ("incorrect sharing of tree nodes");