-#ifndef _BESTAT_H_
-#define _BESTAT_H_
+/*
+ * Copyright (C) 1995-2008 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 Provides several statistic functions for the backend.
+ * @author Christian Wuerdig
+ * @version $Id$
+ */
+#ifndef FIRM_BE_BESTAT_H
+#define FIRM_BE_BESTAT_H
+
+#include "firm_config.h"
+
+#include "firm_types.h"
+#include "irnodeset.h"
+
+#include "beirg.h"
+#include "bestatevent.h"
+#include "bearch.h"
+
+enum {
+ STAT_TAG_FILE = 0, /**< tag for source file name */
+ STAT_TAG_TIME = 1, /**< tag for time */
+ STAT_TAG_IRG = 2, /**< tag for function name (irg) */
+ STAT_TAG_CLS = 3, /**< tag for register class (or "<all>") */
+ STAT_TAG_LAST
+};
-#include "be_t.h"
+extern FILE *be_stat_file;
+extern const char *be_stat_tags[STAT_TAG_LAST];
+
+
+#ifdef FIRM_STATISTICS
/**
* Collects statistics information about register pressure.
*/
void be_do_stat_reg_pressure(be_irg_t *birg);
-#endif /* _BESTAT_H_ */
+/**
+ * Collect statistics about amount of ready nodes per block
+ * @param block The block
+ * @param ready_set A set of ready nodes
+ */
+void be_do_stat_sched_ready(ir_node *block, const ir_nodeset_t *ready_set);
+
+/**
+ * Pass information about a perm to the statistic module.
+ *
+ * @param class_name the name of the register class
+ * @param n_regs number of registers in the register class
+ * @param perm the perm node
+ * @param block the block containing the perm
+ * @param size the size of the perm
+ * @param real_size number of pairs with different registers
+ */
+void be_do_stat_perm(const char *class_name, int n_regs, ir_node *perm, ir_node *block, int n, int real_size);
+
+/**
+ * Pass information about a cycle or chain in a perm to the statistic module.
+ *
+ * @param class_name the name of the register class
+ * @param perm the perm node
+ * @param block the block containing the perm
+ * @param is_chain 1 if chain, 0 if cycle
+ * @param size length of the cycle/chain
+ * @param n_ops the number of ops representing this cycle/chain after lowering
+ */
+void be_do_stat_permcycle(const char *class_name, ir_node *perm, ir_node *block, int is_chain, int n_elems, int n_ops);
+
+/**
+ * Collects node statistics.
+ *
+ * @param irg the to do statistics for
+ * @param phase the phase to collect the statistic for
+ */
+void be_do_stat_nodes(ir_graph *irg, const char *phase);
+
+/**
+ * Performs initialization for be node statistics.
+ */
+void be_stat_init_irg(const arch_env_t *arch_env, ir_graph *irg);
+
+void be_init_stat_file(const char *filename, const char *sourcefilename);
+void be_close_stat_file(void);
+
+#else /* ! FIRM_STATISTICS */
+
+#define be_stat_init_irg(arch_env, irg)
+#define be_do_stat_nodes(irg, phase)
+#define be_do_stat_reg_pressure(birg)
+#define be_do_stat_sched_ready(block, ready_set)
+#define be_do_stat_perm(class_name, n_regs, perm, block, n, real_size)
+#define be_do_stat_permcycle(class_name, perm, block, is_chain, n_elems, n_ops)
+
+#endif /* FIRM_STATISTICS */
+
+/**
+ * Gives a cost estimate for the program (based on execution frequencies)
+ * and backend op_estimated_cost
+ */
+double be_estimate_irg_costs(ir_graph *irg, const arch_env_t *arch_env, ir_exec_freq *execfreqs);
+
+#endif /* FIRM_BE_BESTAT_H */
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