/*
- * 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.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @brief Interblock liveness analysis.
* @author Sebastian Hack
* @date 06.12.2004
- * @version $Id$
*/
#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 "be_types.h"
#include "irnodeset.h"
typedef enum {
- be_lv_state_in = 1,
- be_lv_state_end = 2,
- be_lv_state_out = 4,
+ be_lv_state_none = 0,
+ be_lv_state_in = 1,
+ be_lv_state_end = 2,
+ be_lv_state_out = 4,
} be_lv_state_t;
-
-typedef struct _be_lv_t be_lv_t;
-
-typedef struct _be_lv_info_t be_lv_info_t;
+ENUM_BITSET(be_lv_state_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_new(ir_graph *irg);
/**
- * Check the given liveness information against a freshly computed one.
+ * Free the liveness information.
*/
-void be_liveness_check(be_lv_t *lv);
+void be_liveness_free(be_lv_t *lv);
/**
- * Free the liveness information.
+ * (Re)compute the liveness information if necessary.
*/
-void be_liveness_free(be_lv_t *lv);
+void be_liveness_compute_sets(be_lv_t *lv);
+void be_liveness_compute_chk(be_lv_t *lv);
/**
- * Recompute the complete liveness information.
+ * 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.
+ * @note If changed the control flow then you must also call
+ * be_liveness_invalidate_chk()
*/
-void be_liveness_recompute(be_lv_t *lv);
+void be_liveness_invalidate_sets(be_lv_t *lv);
+void be_liveness_invalidate_chk(be_lv_t *lv);
/**
* Update the liveness information for a single node.
/**
* 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.
*/
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.
- * @param irg The graph.
- */
-void be_liveness_dump(const be_lv_t *lv, FILE *f);
-
-/**
- * Dump the liveness information for a graph.
- * @param irg The graph.
- * @param cls_name A string used as substring in the filename.
- */
-void be_liveness_dumpto(const be_lv_t *lv, const char *cls_name);
-
/**
* Check, if a node is live in at a block.
* @param block The block.
*/
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
- */
-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_ir_nodeset(const arch_env_t *arch_env, const arch_register_class_t *cls, ir_node *node, ir_nodeset_t *nodeset);
+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_ir_nodeset(const be_lv_t *lv, const arch_env_t *arch_env, const arch_register_class_t *cls, const ir_node *bl, ir_nodeset_t *nodeset);
+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.
+ * Compute a set of nodes which are live just before the given node.
* @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);
-
-/**
- * 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);
-
-/**
- * Make sure the live sets are computed.
- * @param lv The liveness information.
- */
-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);
-
-/**
- * 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_invalidate(be_lv_t *lv);
+void be_liveness_nodes_live_before(be_lv_t const *lv, arch_register_class_t const *cls, ir_node const *pos, ir_nodeset_t *live);
-#endif /* FIRM_BE_BELIVE_H */
+#endif
projects / libfirm / blobdiff