X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeirg.c;h=49281867fca446f426c50d131844f1dbbd08f326;hb=4d808298b72e72bd06c7466e837dd9dda4eb1070;hp=558f79a818f6a90cac216bed661d9997f198b880;hpb=4d5c3365a58cba59993045a9e08e686d8ae079a7;p=libfirm

diff --git a/ir/be/beirg.c b/ir/be/beirg.c
index 558f79a81..49281867f 100644
--- a/ir/be/beirg.c
+++ b/ir/be/beirg.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.
  *
@@ -17,11 +17,12 @@
  * PURPOSE.
  */
 
-/*
- * Author:      Matthias Braun
- * Date:		13.12.2006
- * Copyright:   (c) Universitaet Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+/**
+ * @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"
@@ -29,27 +30,19 @@
 
 #include "execfreq.h"
 #include "beirg_t.h"
+#include "absgraph.h"
 
-void be_assure_liveness(be_irg_t *birg)
+be_lv_t *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)
-{
-	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);
@@ -57,7 +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);
@@ -69,37 +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);
 }