Updated header

[libfirm] / ir / ir / irgwalk_blk.c

diff --git a/ir/ir/irgwalk_blk.c b/ir/ir/irgwalk_blk.c
index 0de8e96..6289b4a 100644 (file)
--- a/ir/ir/irgwalk_blk.c
+++ b/ir/ir/irgwalk_blk.c
@@ -1,3 +1,22 @@
+/*
+ * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
 /*
  * Project:     libFIRM
  * File name:   ir/ir/irgwalk_blk.c
@@ -7,7 +26,6 @@
  * Created:
  * CVS-ID:      $Id$
  * Copyright:   (c) 1999-2004 Universität Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
  */
 #ifdef HAVE_CONFIG_H
 # include "config.h"
@@ -346,9 +364,6 @@ do_irg_walk_blk(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *en
   int old_view       = get_interprocedural_view();
   block_entry_t      *entry;
 
-  assert(! inside_irg_walk(irg)); /* we must not already be inside an irg walk */
-  set_inside_irg_walk(irg);
-
   /* switch off interprocedural view */
   set_interprocedural_view(0);
 
@@ -358,6 +373,7 @@ do_irg_walk_blk(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *en
   blks.follow_deps = follow_deps != 0;
 
   /* first step: traverse the graph and fill the lists */
+  set_using_visited(irg);
   inc_irg_visited(irg);
   collect_walk(end_node, &blks);
 
@@ -378,7 +394,7 @@ do_irg_walk_blk(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *en
   obstack_free(&blks.obst, NULL);
 
   set_interprocedural_view(old_view);
-  clear_inside_irg_walk(irg);
+  clear_using_visited(irg);
 }
 
 void irg_walk_blkwise_graph(ir_graph *irg, irg_walk_func *pre, irg_walk_func *post, void *env)