Optionally do whole-program assumption; (OBEY)

[libfirm] / ir / ana / irdom.c

diff --git a/ir/ana/irdom.c b/ir/ana/irdom.c
index de906b8..9002334 100644 (file)
--- a/ir/ana/irdom.c
+++ b/ir/ana/irdom.c
@@ -1,13 +1,18 @@
-/* Copyright (C) 2002 by Universitaet Karlsruhe
-** All rights reserved.
-**
-** Authors:  Goetz Lindenmaier
-**
-** irdom.c --- Dominator tree.
-**
-*/
-
-/* $Id$ */
+/*
+ * Project:     libFIRM
+ * File name:   ir/ana/irdom.c
+ * Purpose:     Construct and access dominator tree.
+ * Author:      Goetz Lindenmaier
+ * Modified by:
+ * Created:     2.2002
+ * CVS-ID:      $Id$
+ * Copyright:   (c) 2002-2003 Universität Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "irouts.h"
 
@@ -17,7 +22,7 @@
 #include "irnode_t.h"
 
 /**********************************************************************/
-/** Accessing the dominator datastructures                           **/
+/** Accessing the dominator data structures                          **/
 /**********************************************************************/
 
 ir_node *get_Block_idom(ir_node *bl) {
@@ -191,9 +196,8 @@ void compute_doms(ir_graph *irg) {
   if (current_ir_graph->outs_state != outs_consistent)
     compute_outs(current_ir_graph);
 
-  /** Initialize the temporary information, add link to parent.  We don't do
-      this with a standard walker as passing the parent to the sons isn't
-      simple. **/
+  /* this with a standard walker as passing the parent to the sons isn't
+     simple. */
   used = 0;
   inc_irg_block_visited(current_ir_graph);
   init_tmp_dom_info(get_irg_start_block(current_ir_graph), NULL, tdi_list, &used);
@@ -204,11 +208,13 @@ void compute_doms(ir_graph *irg) {
 
 
   for (i = n_blocks-1; i > 0; i--) {  /* Don't iterate the root, it's done. */
+    int irn_arity;
     tmp_dom_info *w = &tdi_list[i];
     tmp_dom_info *v;
 
     /* Step 2 */
-    for (j = 0;  j < get_irn_arity(w->block);  j++) {
+    irn_arity = get_irn_arity(w->block);
+    for (j = 0;  j < irn_arity;  j++) {
       ir_node *pred = get_nodes_Block(get_Block_cfgpred(w->block, j));
       tmp_dom_info *u;