X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeirg.c;h=eaeca4ea1153eb89634be9d36f2dba87215b1028;hb=b0e09fe0aada2e5d9dc0299e969b3c93c1092d97;hp=d498e3d1d6e1e4e9a9b89d299a0d661e64c23a89;hpb=205396c4f4f5abe7abd6dc2350c8c398a7623afc;p=libfirm

diff --git a/ir/be/beirg.c b/ir/be/beirg.c
index d498e3d1d..eaeca4ea1 100644
--- a/ir/be/beirg.c
+++ b/ir/be/beirg.c
@@ -1,8 +1,28 @@
 /*
- * Author:      Matthias Braun
- * Date:		13.12.2006
- * Copyright:   (c) Universitaet Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ * 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.
+ */
+
+/**
+ * @file
+ * @brief       Backend irg - a ir_graph with additional analysis information.
+ * @author      Matthias Braun
+ * @date        13.12.2006
+ * @version     $Id$
  */
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -10,27 +30,19 @@
 
 #include "execfreq.h"
 #include "beirg_t.h"
+#include "absgraph.h"
 
-void be_assure_liveness(be_irg_t *birg)
-{
-	if(birg->lv != NULL)
-		return;
-
-	birg->lv = be_liveness(birg->irg);
-}
-
-void be_invalidate_liveness(be_irg_t *birg)
+be_lv_t *be_assure_liveness(be_irg_t *birg)
 {
-	if(birg->lv == NULL)
-		return;
+	if (birg->lv != NULL)
+		return birg->lv;
 
-	be_liveness_free(birg->lv);
-	birg->lv = NULL;
+	return birg->lv = be_liveness(birg);
 }
 
 void be_assure_dom_front(be_irg_t *birg)
 {
-	if(birg->dom_front != NULL)
+	if (birg->dom_front != NULL)
 		return;
 
 	birg->dom_front = be_compute_dominance_frontiers(birg->irg);
@@ -38,7 +50,7 @@ void be_assure_dom_front(be_irg_t *birg)
 
 void be_invalidate_dom_front(be_irg_t *birg)
 {
-	if(birg->dom_front == NULL)
+	if (birg->dom_front == NULL)
 		return;
 
 	be_free_dominance_frontiers(birg->dom_front);
@@ -50,37 +62,37 @@ void be_free_birg(be_irg_t *birg)
 	free_execfreq(birg->exec_freq);
 	birg->exec_freq = NULL;
 
-	if(birg->dom_front != NULL) {
+	if (birg->dom_front != NULL) {
 		be_free_dominance_frontiers(birg->dom_front);
 		birg->dom_front = NULL;
 	}
-	if(birg->lv != NULL) {
+	if (birg->lv != NULL) {
 		be_liveness_free(birg->lv);
 		birg->lv = NULL;
 	}
 }
 
-ir_graph* (be_get_birg_irg) (const be_irg_t *birg)
+ir_graph *(be_get_birg_irg)(const be_irg_t *birg)
 {
 	return _be_get_birg_irg(birg);
 }
 
-ir_exec_freq* (be_get_birg_exec_freq) (const be_irg_t *birg)
+ir_exec_freq *(be_get_birg_exec_freq)(const be_irg_t *birg)
 {
 	return _be_get_birg_exec_freq(birg);
 }
 
-be_lv_t* (be_get_birg_liveness) (const be_irg_t *birg)
+be_lv_t *(be_get_birg_liveness)(const be_irg_t *birg)
 {
 	return _be_get_birg_liveness(birg);
 }
 
-be_dom_front_info_t* (be_get_birg_dom_front) (const be_irg_t *birg)
+be_dom_front_info_t *(be_get_birg_dom_front)(const be_irg_t *birg)
 {
 	return _be_get_birg_dom_front(birg);
 }
 
-const arch_env_t* (be_get_birg_arch_env) (const be_irg_t *birg)
+const arch_env_t *(be_get_birg_arch_env)(const be_irg_t *birg)
 {
 	return _be_get_birg_arch_env(birg);
 }