+/*
+ * 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.
+ */
+
/**
- * This file calls the corresponding statistic functions for
- * some backend statistics.
- * @author Christian Wuerdig
- * $Id$
+ * @file
+ * @brief Provides several statistic functions for the backend.
+ * @author Christian Wuerdig
+ * @version $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#ifdef FIRM_STATISTICS
+#include <time.h>
#include "irnode_t.h"
#include "irprintf.h"
#include "irgwalk.h"
#include "irhooks.h"
+#include "execfreq.h"
#include "dbginfo_t.h"
#include "firmstat_t.h"
#include "irtools.h"
#include "pset.h"
+#include "statev.h"
+#include "bearch_t.h"
#include "bestat.h"
#include "belive_t.h"
#include "besched.h"
#include "benode_t.h"
+#ifdef FIRM_STATISTICS
+
typedef struct _be_stat_irg_t {
ir_graph *irg; /**< the irg, the statistic is about */
pset *phases; /**< node statistics for each phase */
static int cmp_stat_data(const void *a, const void *b, size_t len) {
const be_stat_irg_t *p1 = a;
const be_stat_irg_t *p2 = b;
+ (void) len;
return p1->irg != p2->irg;
}
return entry;
}
-struct a_pressure_walker {
+typedef struct pressure_walker_env_t pressure_walker_env_t;
+struct pressure_walker_env_t {
be_irg_t *birg;
- be_lv_t *lv;
+ be_lv_t *lv;
+ double insn_count;
+ double regpressure;
+ int max_pressure;
+ const arch_register_class_t *cls;
};
+static void check_reg_pressure_class(pressure_walker_env_t *env,
+ ir_node *block,
+ const arch_register_class_t *cls)
+{
+ be_irg_t *birg = env->birg;
+ ir_graph *irg = be_get_birg_irg(birg);
+ const arch_env_t *aenv = be_get_birg_arch_env(birg);
+ ir_node *irn;
+ ir_nodeset_t live_nodes;
+ int max_live;
+
+ ir_nodeset_init(&live_nodes);
+ be_liveness_end_of_block(env->lv, aenv, cls, block, &live_nodes);
+ max_live = ir_nodeset_size(&live_nodes);
+ env->regpressure += max_live;
+
+ sched_foreach_reverse(block, irn) {
+ int cnt;
+
+ if(is_Phi(irn))
+ break;
+
+ be_liveness_transfer(aenv, cls, irn, &live_nodes);
+ cnt = ir_nodeset_size(&live_nodes);
+ max_live = cnt < max_live ? max_live : cnt;
+ env->regpressure += cnt;
+ env->insn_count++;
+ }
+
+ if(max_live > env->max_pressure)
+ env->max_pressure = max_live;
+
+ stat_be_block_regpressure(irg, block, max_live, cls->name);
+ ir_nodeset_destroy(&live_nodes);
+}
+
/**
* Collect reg pressure statistics per block and per class.
*/
static void stat_reg_pressure_block(ir_node *block, void *data) {
- struct a_pressure_walker *env = data;
- be_irg_t *birg = env->birg;
- const arch_env_t *aenv = birg->main_env->arch_env;
- int i, n = arch_isa_get_n_reg_class(aenv->isa);
+ pressure_walker_env_t *env = data;
- for (i = 0; i < n; i++) {
- const arch_register_class_t *cls = arch_isa_get_reg_class(aenv->isa, i);
- ir_node *irn;
- pset *live_nodes = pset_new_ptr(64);
- int max_live;
+ if(env->cls != NULL) {
+ check_reg_pressure_class(env, block, env->cls);
+ } else {
+ const arch_env_t *arch_env = be_get_birg_arch_env(env->birg);
+ int i, n;
- live_nodes = be_liveness_end_of_block(env->lv, aenv, cls, block, live_nodes);
- max_live = pset_count(live_nodes);
+ n = arch_env_get_n_reg_class(arch_env);
+ for (i = 0; i < n; i++) {
+ const arch_register_class_t *cls
+ = arch_env_get_reg_class(arch_env, i);
- sched_foreach_reverse(block, irn) {
- int cnt;
-
- if(is_Phi(irn))
- break;
-
- live_nodes = be_liveness_transfer(aenv, cls, irn, live_nodes);
- cnt = pset_count(live_nodes);
- max_live = cnt < max_live ? max_live : cnt;
+ check_reg_pressure_class(env, block, cls);
}
-
- stat_be_block_regpressure(birg->irg, block, max_live, cls->name);
}
}
void be_do_stat_reg_pressure(be_irg_t *birg) {
- if (stat_is_active()) {
- struct a_pressure_walker w;
+ pressure_walker_env_t env;
+ ir_graph *irg = be_get_birg_irg(birg);
+ double average_pressure;
+
+ env.birg = birg;
+ env.insn_count = 0;
+ env.max_pressure = 0;
+ env.regpressure = 0;
+ be_liveness_assure_sets(be_assure_liveness(birg));
+ env.lv = be_get_birg_liveness(birg);
+
+ // hack for now, TODO: remove me later
+#if 0
+ env.cls = NULL;
+#else
+ env.cls = arch_env_get_reg_class(be_get_birg_arch_env(birg), 2);
+#endif
- w.birg = birg;
- w.lv = be_liveness(birg->irg);
- /* Collect register pressure information for each block */
- irg_block_walk_graph(birg->irg, stat_reg_pressure_block, NULL, &w);
- be_liveness_free(w.lv);
- }
+ /* Collect register pressure information for each block */
+ irg_block_walk_graph(irg, stat_reg_pressure_block, NULL, &env);
+
+ average_pressure = env.regpressure / env.insn_count;
+ stat_ev_emit("average_register_pressure", average_pressure);
+ stat_ev_emit("maximum_register_pressure", env.max_pressure);
}
/**
* Notify statistic module about amount of ready nodes.
*/
-void be_do_stat_sched_ready(ir_node *block, nodeset *ready_set) {
+void be_do_stat_sched_ready(ir_node *block, const ir_nodeset_t *ready_set) {
if (stat_is_active()) {
- stat_be_block_sched_ready(get_irn_irg(block), block, MIN(nodeset_count(ready_set), 5));
+ stat_be_block_sched_ready(get_irn_irg(block), block, MIN(ir_nodeset_size(ready_set), 5));
}
}
* Updates nodes statistics.
*/
static void do_nodes_stat(ir_node *irn, void *env) {
- be_stat_phase_t *phase = env;
- ir_mode *mode;
- opcode opc;
+ be_stat_phase_t *phase = env;
+ ir_mode *mode;
+ ir_opcode opc;
+ arch_irn_class_t irn_class;
if (is_Block(irn))
return;
else if (opc == iro_Store)
phase->num_store++;
- switch (arch_irn_classify(phase->arch_env, irn)) {
- case arch_irn_class_spill:
- phase->num_spill++;
- break;
- case arch_irn_class_reload:
- phase->num_reload++;
- break;
- case arch_irn_class_stackparam:
- case arch_irn_class_load:
- phase->num_load++;
- break;
- case arch_irn_class_store:
- phase->num_store++;
- break;
- default:
- break;
- }
+ irn_class = arch_irn_classify(phase->arch_env, irn);
+ if (irn_class & arch_irn_class_spill)
+ phase->num_spill++;
+ else if (irn_class & arch_irn_class_reload)
+ phase->num_reload++;
+ else if (irn_class & arch_irn_class_stackparam)
+ phase->num_load++;
+ else if (irn_class & arch_irn_class_load)
+ phase->num_load++;
+ else if (irn_class & arch_irn_class_store)
+ phase->num_store++;
}
/**
}
}
}
+#endif /* FIRM_STATISTICS */
-#else
+typedef struct _estimate_irg_costs_env_t {
+ const arch_env_t *arch_env;
+ ir_exec_freq *execfreqs;
+ double costs;
+} estimate_irg_costs_env_t;
+
+static void estimate_block_costs(ir_node *block, void *data)
+{
+ estimate_irg_costs_env_t *env = data;
+ ir_node *node;
+ double costs = 0.0;
+
+ sched_foreach(block, node) {
+ costs += arch_get_op_estimated_cost(env->arch_env, node);
+ }
+
+ env->costs += costs * get_block_execfreq(env->execfreqs, block);
+}
+
+double be_estimate_irg_costs(ir_graph *irg, const arch_env_t *arch_env, ir_exec_freq *execfreqs)
+{
+ estimate_irg_costs_env_t env;
+
+ env.arch_env = arch_env;
+ env.execfreqs = execfreqs;
+ env.costs = 0.0;
+
+ irg_block_walk_graph(irg, estimate_block_costs, NULL, &env);
+
+ return env.costs;
+}
+
+#ifdef FIRM_STATISTICS
+
+
+#else /* FIRM_STATISTICS */
void (be_stat_init_irg)(const arch_env_t *arch_env, ir_graph *irg) {}
void (be_do_stat_nodes)(ir_graph *irg, const char *phase) {}
void (be_do_stat_reg_pressure)(be_irg_t *birg) {}
-void (be_do_stat_sched_ready)(ir_node *block, nodeset *ready_set) {}
+void (be_do_stat_sched_ready)(ir_node *block, ir_nodeset_t *ready_set) {}
void (be_do_stat_perm)(const char *class_name, int n_regs, ir_node *perm, ir_node *block, int n, int real_size) {}
#endif /* FIRM_STATISTICS */
projects / libfirm / blobdiff