+/**
+ * This file calls the corresponding statistic functions for
+ * some backend statistics.
+ * @author Christian Wuerdig
+ * $Id$
+ */
#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 "dbginfo_t.h"
-#include "firmstat.h"
-#include "ident.h"
+#include "firmstat_t.h"
+#include "irtools.h"
+#include "pset.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 */
+ struct obstack obst; /**< the obstack containing the information */
+ const arch_env_t *arch_env; /**< the current arch env */
+} be_stat_irg_t;
+
+typedef struct _be_stat_phase_t {
+ const arch_env_t *arch_env; /**< the current arch env */
+ const char *phase; /**< the name of the phase the statistic is about */
+ unsigned long num_nodes; /**< overall number of reachable nodes in the irg */
+ unsigned long num_data; /**< number of data nodes ((mode_datab && ! Proj && ! Phi) || mode_T) */
+ unsigned long num_proj; /**< number of Projs */
+ unsigned long num_phi; /**< number of Phis */
+ unsigned long num_load; /**< number of Loads */
+ unsigned long num_store; /**< number of Stores */
+ unsigned long num_spill; /**< number of Spills */
+ unsigned long num_reload; /**< number of Reloads */
+} be_stat_phase_t;
+
+static set *be_stat_data = NULL;
+
+static int cmp_stat_phase(const void *a, const void *b) {
+ const be_stat_phase_t *p1 = a;
+ const be_stat_phase_t *p2 = b;
+
+ return p1->phase != p2->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;
+
+ return p1->irg != p2->irg;
+}
-#undef MIN
-#define MIN(a, b) (a < b ? a : b)
+static be_stat_irg_t *find_stat_irg_entry(ir_graph *irg) {
+ be_stat_irg_t *entry, key;
+
+ if (! be_stat_data)
+ return NULL;
+
+ key.irg = irg;
+ entry = set_find(be_stat_data, &key, sizeof(key), HASH_PTR(irg));
+
+ return entry;
+}
+
+static be_stat_irg_t *get_stat_irg_entry(ir_graph *irg) {
+ be_stat_irg_t *entry, key;
+
+ if (! be_stat_data)
+ return NULL;
+
+ entry = find_stat_irg_entry(irg);
+
+ if (! entry) {
+ key.irg = irg;
+ entry = set_insert(be_stat_data, &key, sizeof(key), HASH_PTR(irg));
+ }
+
+ return entry;
+}
+
+struct a_pressure_walker {
+ be_irg_t *birg;
+ be_lv_t *lv;
+};
/**
* Collect reg pressure statistics per block and per class.
*/
-static void stat_reg_pressure_block(ir_node *block, void *env) {
- be_irg_t *birg = env;
- const arch_env_t *aenv = birg->main_env->arch_env;
+static void stat_reg_pressure_block(ir_node *block, void *data) {
+ struct a_pressure_walker *env = data;
+ 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);
int i, n = arch_isa_get_n_reg_class(aenv->isa);
for (i = 0; i < n; i++) {
pset *live_nodes = pset_new_ptr(64);
int max_live;
- live_nodes = be_liveness_end_of_block(aenv, cls, block, live_nodes);
+ live_nodes = be_liveness_end_of_block(env->lv, aenv, cls, block, live_nodes);
max_live = pset_count(live_nodes);
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;
+ max_live = cnt < max_live ? max_live : cnt;
}
- hook_be_block_regpressure(block, birg->irg, max_live, new_id_from_str(cls->name));
+ stat_be_block_regpressure(irg, block, max_live, cls->name);
}
}
void be_do_stat_reg_pressure(be_irg_t *birg) {
- /* Collect register pressure information for each block */
- irg_block_walk_graph(birg->irg, stat_reg_pressure_block, NULL, birg);
+ ir_graph *irg = be_get_birg_irg(birg);
+
+ if (stat_is_active()) {
+ struct a_pressure_walker w;
+
+ w.birg = birg;
+ w.lv = be_liveness(irg);
+ /* Collect register pressure information for each block */
+ irg_block_walk_graph(irg, stat_reg_pressure_block, NULL, &w);
+ be_liveness_free(w.lv);
+ }
}
/**
* Notify statistic module about amount of ready nodes.
*/
-void be_do_stat_sched_ready(ir_node *block, nodeset *ready_set) {
- hook_be_block_sched_ready(block, get_irn_irg(block), MIN(nodeset_count(ready_set), 5));
+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(ir_nodeset_size(ready_set), 5));
+ }
+}
+
+/**
+ * Pass information about a perm to the statistic module.
+ */
+void be_do_stat_perm(const char *class_name, int n_regs, ir_node *perm, ir_node *block, int n, int real_size) {
+ if (stat_is_active()) {
+ stat_be_block_stat_perm(class_name, n_regs, perm, block, n, real_size);
+ }
+}
+
+/**
+ * Pass information about a cycle or chain in a perm to the statistic module.
+ */
+void be_do_stat_permcycle(const char *class_name, ir_node *perm, ir_node *block, int is_chain, int n_elems, int n_ops) {
+ if (stat_is_active()) {
+ stat_be_block_stat_permcycle(class_name, perm, block, is_chain, n_elems, n_ops);
+ }
+}
+
+/**
+ * Updates nodes statistics.
+ */
+static void do_nodes_stat(ir_node *irn, void *env) {
+ be_stat_phase_t *phase = env;
+ ir_mode *mode;
+ ir_opcode opc;
+ arch_irn_class_t irn_class;
+
+ if (is_Block(irn))
+ return;
+
+ mode = get_irn_mode(irn);
+ opc = get_irn_opcode(irn);
+
+ phase->num_nodes++;
+
+ /* check for nodes we want to ignore */
+ if (be_is_Keep(irn) ||
+ be_is_CopyKeep(irn) ||
+ opc == iro_Start ||
+ opc == iro_End)
+ return;
+
+ if (is_Proj(irn) && (mode != mode_X)) {
+ phase->num_proj++;
+ return;
+ }
+ else if (is_Phi(irn)) {
+ phase->num_phi++;
+ return;
+ }
+ else if (mode_is_datab(mode) || ((mode == mode_T) && ! is_be_node(irn)) || (is_Proj(irn) && (mode == mode_X)))
+ phase->num_data++;
+
+ if (opc == iro_Load)
+ phase->num_load++;
+ else if (opc == iro_Store)
+ phase->num_store++;
+
+ 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++;
+}
+
+/**
+ * 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) {
+ be_stat_irg_t *irg_entry;
+ be_stat_phase_t *phase_entry, phase_key;
+
+ irg_entry = find_stat_irg_entry(irg);
+
+ if (! irg_entry)
+ return;
+
+ phase_key.phase = phase;
+ phase_entry = pset_find_ptr(irg_entry->phases, &phase_key);
+
+ if (! phase_entry) {
+ phase_entry = obstack_alloc(&irg_entry->obst, sizeof(*phase_entry));
+ phase_entry = pset_insert(irg_entry->phases, phase_entry, HASH_PTR(phase));
+ }
+ memset(phase_entry, 0, sizeof(*phase_entry));
+
+ phase_entry->phase = phase;
+ phase_entry->arch_env = irg_entry->arch_env;
+
+ irg_walk_blkwise_graph(irg_entry->irg, NULL, do_nodes_stat, phase_entry);
+}
+
+/**
+ * Dumps statistics about nodes (called from dump_snapshot)
+ */
+static void be_dump_node_stat(dumper_t *dmp, graph_entry_t *entry) {
+ be_stat_irg_t *stat_irg = find_stat_irg_entry(entry->irg);
+ be_stat_phase_t *phase;
+
+ if (! stat_irg || ! stat_irg->phases)
+ return;
+
+ fprintf(dmp->f, "===> BE NODE STATISTIC BEGIN <===\n");
+
+ foreach_pset(stat_irg->phases, phase) {
+ fprintf(dmp->f, "--> Phase: %s\n", phase->phase);
+ fprintf(dmp->f, "# nodes: %ld\n", phase->num_nodes);
+ fprintf(dmp->f, "# data nodes: %ld\n", phase->num_data);
+ fprintf(dmp->f, "# Proj: %ld\n", phase->num_proj);
+ fprintf(dmp->f, "# Phi: %ld\n", phase->num_phi);
+ fprintf(dmp->f, "# Load: %ld\n", phase->num_load);
+ fprintf(dmp->f, "# Store: %ld\n", phase->num_store);
+ fprintf(dmp->f, "# Spill: %ld\n", phase->num_spill);
+ fprintf(dmp->f, "# Reload: %ld\n", phase->num_reload);
+ }
+
+ fprintf(dmp->f, "===> BE NODE STATISTIC END <===\n");
+}
+
+/**
+ * Returns a be statistic object for the given irg.
+ */
+void be_stat_init_irg(const arch_env_t *arch_env, ir_graph *irg) {
+ static int reg_func = 1;
+
+ if (stat_is_active()) {
+ be_stat_irg_t *stat_irg;
+
+ if (! be_stat_data)
+ be_stat_data = new_set(cmp_stat_data, 8);
+
+ stat_irg = get_stat_irg_entry(irg);
+ stat_irg->irg = irg;
+ stat_irg->phases = new_pset(cmp_stat_phase, 8);
+ stat_irg->arch_env = arch_env;
+ obstack_init(&stat_irg->obst);
+
+ if (reg_func) {
+ /* first init: register dumper */
+ stat_register_dumper_func(be_dump_node_stat);
+ reg_func = 0;
+ }
+ }
+}
+#endif /* FIRM_STATISTICS */
+
+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
+
+const char *be_stat_tags[STAT_TAG_LAST];
+FILE *be_stat_file = NULL;
+
+void be_init_stat_file(const char *stat_file_name, const char *sourcefilename)
+{
+ static char time_str[32];
+
+ assert(be_stat_file == NULL);
+
+ /* if we want to do some statistics, push the environment. */
+ if (strlen(stat_file_name) == 0)
+ return;
+
+ be_stat_file = fopen(stat_file_name, "at");
+ if (be_stat_file == NULL) {
+ fprintf(stderr, "Warning couldn't open statfile '%s'\n", stat_file_name);
+ return;
+ }
+
+ /* initialize the statistics tags */
+ ir_snprintf(time_str, sizeof(time_str),"%u", time(NULL));
+
+ be_stat_tags[STAT_TAG_FILE] = sourcefilename;
+ be_stat_tags[STAT_TAG_TIME] = time_str;
+ be_stat_tags[STAT_TAG_IRG] = "<all>";
+ be_stat_tags[STAT_TAG_CLS] = "<all>";
+
+ be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file);
+}
+
+void be_close_stat_file()
+{
+ be_stat_ev_pop();
+ if (be_stat_file != NULL) {
+ fclose(be_stat_file);
+ be_stat_file = NULL;
+ }
}
-#else
+#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_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