Remove unnecessary return; at end of void functions.

[libfirm] / ir / lower / lower_mode_b.c

diff --git a/ir/lower/lower_mode_b.c b/ir/lower/lower_mode_b.c
index 5f8e137..89c67a9 100644 (file)
--- a/ir/lower/lower_mode_b.c
+++ b/ir/lower/lower_mode_b.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -19,6 +19,10 @@
 
 /**
  * @file
+ * @brief       lowers operations with mode_b. The result is a graph which
+ *              might still contains some convs from/to mode_b, but no
+ *              operations are performed on them anymore, they are just there
+ *              so modes match. A backend can safely skip all mode_b convs.
  * @author      Matthias Braun, Christoph Mallon
  * @version     $Id$
  */