2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Provides several statistic functions for the backend.
23 * @author Christian Wuerdig, Matthias Braun
26 #ifndef FIRM_BE_BESTAT_H
27 #define FIRM_BE_BESTAT_H
29 #include "firm_types.h"
30 #include "irnodeset.h"
33 #include "bestatevent.h"
36 typedef enum be_stat_tag_t {
38 BE_STAT_PHIS = BE_STAT_FIRST, /**< phi count (excluding mem-phis) */
39 BE_STAT_MEM_PHIS, /**< memory-phi count */
40 BE_STAT_COPIES, /**< copies */
41 BE_STAT_PERMS, /**< perms */
42 BE_STAT_SPILLS, /**< spills (also folded spills) */
43 BE_STAT_RELOADS, /**< reloads (also folded reloads) */
44 BE_STAT_REMATS, /**< rematerialized nodes */
47 ENUM_COUNTABLE(be_stat_tag_t)
48 typedef unsigned long be_node_stats_t[BE_STAT_COUNT];
51 * Collect statistics about node types
53 void be_collect_node_stats(be_node_stats_t *stats, ir_graph *irg);
55 void be_subtract_node_stats(be_node_stats_t *stats, be_node_stats_t *sub);
57 void be_copy_node_stats(be_node_stats_t *dest, be_node_stats_t *src);
59 void be_emit_node_stats(be_node_stats_t *stats, const char *prefix);
62 * Collects statistics information about register pressure.
65 void be_do_stat_reg_pressure(ir_graph *irg, const arch_register_class_t *cls);
68 * Gives a cost estimate for the program (based on execution frequencies)
69 * and backend op_estimated_cost
71 double be_estimate_irg_costs(ir_graph *irg, ir_exec_freq *execfreqs);
74 * return number of "instructions" (=nodes without some virtual nodes like Proj,
77 unsigned long be_count_insns(ir_graph *irg);
80 * return number of basic blocks (without the end block)
82 unsigned long be_count_blocks(ir_graph *irg);