X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbestat.c;h=c576fe6f8f3022acee92619cf6da02f17cfdf629;hb=d16d39df6772995a29ecdc8de1904ccb2e523599;hp=c59fc5432c1776ef28bbf19451566254c2ea5822;hpb=7bf1e928d84b0752a9d9deeff35c138b93bd7ed6;p=libfirm

diff --git a/ir/be/bestat.c b/ir/be/bestat.c
index c59fc5432..c576fe6f8 100644
--- a/ir/be/bestat.c
+++ b/ir/be/bestat.c
@@ -1,13 +1,14 @@
 /**
  * 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"
@@ -16,16 +17,90 @@
 #include "dbginfo_t.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;
+}
+
+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;
+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);
 
@@ -35,51 +110,277 @@ static void stat_reg_pressure_block(ir_node *block, void *env) {
 		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;
 		}
 
-		stat_be_block_regpressure(birg->irg, block, MIN(max_live, 5), cls->name);
+		stat_be_block_regpressure(birg->irg, block, max_live, cls->name);
 	}
 }
 
 void be_do_stat_reg_pressure(be_irg_t *birg) {
-	be_liveness(birg->irg);
-	/* Collect register pressure information for each block */
-	irg_block_walk_graph(birg->irg, stat_reg_pressure_block, NULL, birg);
+	if (stat_is_active()) {
+		struct a_pressure_walker w;
+
+		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);
+	}
 }
 
 /**
  * Notify statistic module about amount of ready nodes.
  */
-void be_do_stat_sched_ready(ir_node *block, nodeset *ready_set) {
-	stat_be_block_sched_ready(get_irn_irg(block), block, nodeset_count(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(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) {
-	stat_be_block_stat_perm(class_name, n_regs, perm, block, n, 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) {
-	stat_be_block_stat_permcycle(class_name, perm, block, is_chain, n_elems, 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) {}