X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelive.h;h=ceb84e068f650092efd7df29eab4c4951000aa22;hb=69c991e03a0eb1b284e6d0c41623d340a8e26d16;hp=ab07214ba29427f9558b143c44753208e502407c;hpb=4d5c3365a58cba59993045a9e08e686d8ae079a7;p=libfirm

diff --git a/ir/be/belive.h b/ir/be/belive.h
index ab07214ba..ceb84e068 100644
--- a/ir/be/belive.h
+++ b/ir/be/belive.h
@@ -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.
  *
@@ -18,19 +18,25 @@
  */
 
 /**
- * Interblock liveness analysis.
- * @author Sebastian Hack
- * @date   6.12.2004
- * @cvs-id $Id$
+ * @file
+ * @brief       Interblock liveness analysis.
+ * @author      Sebastian Hack
+ * @date        06.12.2004
+ * @version     $Id$
  */
-#ifndef FIRM_BELIVE_H
-#define FIRM_BELIVE_H
+#ifndef FIRM_BE_BELIVE_H
+#define FIRM_BE_BELIVE_H
+
+#include <stdio.h>
 
 #include "firm_types.h"
 #include "pset.h"
+
+#include "irlivechk.h"
 #include "bearch.h"
+#include "irnodeset.h"
 
-#include <stdio.h>
+struct be_irg_t;
 
 typedef enum {
 	be_lv_state_in  = 1,
@@ -42,12 +48,11 @@ 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.
  */
-be_lv_t *be_liveness(ir_graph *irg);
+be_lv_t *be_liveness(const struct be_irg_t *birg);
 
 /**
  * Check the given liveness information against a freshly computed one.
@@ -76,7 +81,7 @@ void be_liveness_update(be_lv_t *lv, ir_node *irn);
 /**
  * Remove a node from the liveness information.
  */
-void be_liveness_remove(be_lv_t *lv, ir_node *irn);
+void be_liveness_remove(be_lv_t *lv, const ir_node *irn);
 
 /**
  * Introduce a new node to the liveness information.
@@ -142,53 +147,57 @@ int be_check_dominance(ir_graph *irg);
  * The liveness transfer function.
  * Updates a live set over a single step from a given node to its predecessor.
  * Everything defined at the node is removed from the set, the uses of the node get inserted.
- * @param arch_env The architecture environment.
  * @param cls      The register class to consider.
  * @param irn      The node at which liveness should be computed.
  * @param live     The set of nodes live before @p irn. This set gets modified by updating it to
  *                 the nodes live after irn.
  * @return live.
  */
-pset *be_liveness_transfer(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *irn, pset *live);
+void be_liveness_transfer(const arch_register_class_t *cls, ir_node *node,
+                          ir_nodeset_t *nodeset);
 
 /**
  * Put all node live at the end of a block into a set.
- * @param arch_env The architecture environment.
  * @param cls      The register class to consider.
  * @param bl       The block.
  * @param live     The set to put them into.
  * @return live.
  */
-pset *be_liveness_end_of_block(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *bl, pset *live);
+void be_liveness_end_of_block(const be_lv_t *lv,
+                              const arch_register_class_t *cls,
+                              const ir_node *bl, ir_nodeset_t *nodeset);
 
 /**
  * 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.
+ *         so the node itself is alive but its operands maybe not.
  * @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(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *pos, pset *live);
+void be_liveness_nodes_live_at(const be_lv_t *lv,
+                               const arch_register_class_t *cls,
+                               const ir_node *pos, ir_nodeset_t *live);
 
 /**
- * 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.
+ * Make sure the live sets are computed.
+ * @param lv The liveness information.
  */
-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);
+void be_liveness_assure_sets(be_lv_t *lv);
 
+/**
+ * Make sure all information needed for liveness checks is available.
+ * @param lv The liveness information.
+ */
+void be_liveness_assure_chk(be_lv_t *lv);
 
 /**
- * FIXME: Need comment
+ * Invalidate the liveness information.
+ * You must call this if you modify the program and do not
+ * update the liveness with the be_liveness_{update,remove,introduce}
+ * functions.
+ * @param lv The liveness info.
  */
-void be_liveness_add_missing(be_lv_t *lv);
+void be_liveness_invalidate(be_lv_t *lv);
 
-#endif /* _BELIVE_H */
+#endif /* FIRM_BE_BELIVE_H */