X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelive.h;h=f3e1e2d2ce9339165ec76f7938952b87e3cb2423;hb=9276447aec4972df060349e162f583c4898dfec8;hp=d0d94235751adf17199c8e29ed9ac7dd94f7848d;hpb=48f893878b07f6e334389ff52abda5cc2adbf179;p=libfirm

diff --git a/ir/be/belive.h b/ir/be/belive.h
index d0d942357..f3e1e2d2c 100644
--- a/ir/be/belive.h
+++ b/ir/be/belive.h
@@ -1,17 +1,39 @@
-/**
- * Interblock liveness analysis.
- * @author Sebastian Hack
- * @date 6.12.2004
- */
+/*
+ * 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       Interblock liveness analysis.
+ * @author      Sebastian Hack
+ * @date        06.12.2004
+ * @version     $Id$
+ */
+#ifndef FIRM_BE_BELIVE_H
+#define FIRM_BE_BELIVE_H
 
-#ifndef _BELIVE_H
-#define _BELIVE_H
+#include <stdio.h>
 
 #include "firm_types.h"
 #include "pset.h"
-#include "bearch_t.h"
 
-#include <stdio.h>
+#include "irlivechk.h"
+#include "bearch.h"
 
 typedef enum {
 	be_lv_state_in  = 1,
@@ -23,7 +45,6 @@ typedef struct _be_lv_t be_lv_t;
 
 typedef struct _be_lv_info_t be_lv_info_t;
 
-
 /**
  * Compute the inter block liveness for a graph.
  * @param irg The graph.
@@ -48,9 +69,9 @@ void be_liveness_recompute(be_lv_t *lv);
 /**
  * Update the liveness information for a single node.
  * It is irrelevant if there is liveness information present for the node.
- * The liveness information for the node is firstly deleted and then recompute.
- * So, if the node is fresh and never recorded inf the liveness information
- * before, it is more efficient to call be_liveness_introduce().
+ * The liveness information for the node is firstly deleted and then recomputed.
+ * If the node is fresh and never recorded inf the liveness information before,
+ * it is more efficient to call be_liveness_introduce().
  */
 void be_liveness_update(be_lv_t *lv, ir_node *irn);
 
@@ -67,6 +88,13 @@ void be_liveness_remove(be_lv_t *lv, ir_node *irn);
  */
 void be_liveness_introduce(be_lv_t *lv, ir_node *irn);
 
+/**
+ * Add all nodes which are missing in the current liveness data.
+ * The liveness data of the already existing nodes (in the liveness data) is not touched.
+ * @param The liveness info.
+ */
+void be_liveness_add_missing(be_lv_t *lv);
+
 /**
  * Dump the liveness information for a graph.
  * @param f The output.
@@ -108,8 +136,9 @@ int (be_is_live_end)(const be_lv_t *lv, const ir_node *block, const ir_node *irn
 /**
  * Check, if the SSA dominance property is fulfilled.
  * @param irg The graph.
+ * @return   1 if dominance property is fulfilled, 0 otherwise
  */
-void be_check_dominance(ir_graph *irg);
+int be_check_dominance(ir_graph *irg);
 
 /**
  * The liveness transfer function.
@@ -136,6 +165,8 @@ pset *be_liveness_end_of_block(const be_lv_t *lv, const arch_env_t *arch_env, co
 
 /**
  * Compute a set of nodes which are live at another node.
+ * BEWARE: This is the liveness immediately after the node,
+ *         so the node itself is alive but it's operands maybe not.
  * @param arch_env The architecture environment.
  * @param cls      The register class to consider.
  * @param pos      The node.
@@ -144,4 +175,17 @@ pset *be_liveness_end_of_block(const be_lv_t *lv, const arch_env_t *arch_env, co
  */
 pset *be_liveness_nodes_live_at(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live);
 
-#endif /* _BELIVE_H */
+/**
+ * Compute a set of nodes which are live at another node.
+ * BEWARE: This is the liveness immediately before the node,
+ *         so the node itself is not alive but it's operands are.
+ * @param arch_env The architecture environment.
+ * @param cls      The register class to consider.
+ * @param pos      The node.
+ * @param live     The set to put them into.
+ * @return live.
+ */
+pset *be_liveness_nodes_live_at_input(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live);
+
+
+#endif /* FIRM_BE_BELIVE_H */