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authorMatthias Braun <matze@braunis.de>2008-09-30 18:34:19 +0200
committerMatthias Braun <matze@braunis.de>2008-09-30 18:34:19 +0200
commitdc40195251696fd3a6f93a151f17c8a937a3930a (patch)
tree6ad43cb389ea8354d1123511d0cc1d3b578f05e5 /ir/be/bestat.c
parent6365c91e1ff24ede138bd3c387215a6b58dff330 (diff)
cleanup statistics stuff
[r22378]
Diffstat (limited to 'ir/be/bestat.c')
-rw-r--r--ir/be/bestat.c356
1 files changed, 116 insertions, 240 deletions
diff --git a/ir/be/bestat.c b/ir/be/bestat.c
index db3cd7e..1c3d9dd 100644
--- a/ir/be/bestat.c
+++ b/ir/be/bestat.c
@@ -20,7 +20,7 @@
/**
* @file
* @brief Provides several statistic functions for the backend.
- * @author Christian Wuerdig
+ * @author Christian Wuerdig, Matthias Braun
* @version $Id$
*/
#ifdef HAVE_CONFIG_H
@@ -34,84 +34,19 @@
#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 "error.h"
#include "bearch_t.h"
+#include "beirg_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 */
- 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;
- (void) len;
-
- 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;
-}
typedef struct pressure_walker_env_t pressure_walker_env_t;
struct pressure_walker_env_t {
@@ -159,9 +94,6 @@ static void check_reg_pressure_class(pressure_walker_env_t *env,
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) {
pressure_walker_env_t *env = data;
@@ -189,169 +121,8 @@ void be_do_stat_reg_pressure(be_irg_t *birg, const arch_register_class_t *cls) {
stat_ev_emit("bechordal_maximum_register_pressure", env.max_pressure);
}
-/**
- * Notify statistic module about amount of ready nodes.
- */
-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;
@@ -385,15 +156,120 @@ double be_estimate_irg_costs(ir_graph *irg, const arch_env_t *arch_env, ir_exec_
return env.costs;
}
-#ifdef FIRM_STATISTICS
-#else /* FIRM_STATISTICS */
+static const arch_env_t *arch_env;
+static be_node_stats_t *stats;
+
+static void node_stat_walker(ir_node *irn, void *data)
+{
+ (void) data;
+
+ /* if the node is a normal phi */
+ if(is_Phi(irn)) {
+ if (get_irn_mode(irn) == mode_M) {
+ (*stats)[BE_STAT_MEM_PHIS]++;
+ } else {
+ (*stats)[BE_STAT_PHIS]++;
+ }
+ } else {
+ arch_irn_class_t classify = arch_irn_classify(arch_env, irn);
+
+ if(classify & arch_irn_class_spill)
+ (*stats)[BE_STAT_SPILLS]++;
+ if(classify & arch_irn_class_reload)
+ (*stats)[BE_STAT_RELOADS]++;
+ if(classify & arch_irn_class_remat)
+ (*stats)[BE_STAT_REMATS]++;
+ if(classify & arch_irn_class_copy)
+ (*stats)[BE_STAT_COPIES]++;
+ if(classify & arch_irn_class_perm)
+ (*stats)[BE_STAT_PERMS]++;
+ }
+}
+
+void be_collect_node_stats(be_node_stats_t *new_stats, be_irg_t *birg)
+{
+ arch_env = birg->main_env->arch_env;
+ stats = new_stats;
-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, 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) {}
+ memset(stats, 0, sizeof(*stats));
+ irg_walk_graph(birg->irg, NULL, node_stat_walker, NULL);
+}
-#endif /* FIRM_STATISTICS */
+void be_subtract_node_stats(be_node_stats_t *stats, be_node_stats_t *sub)
+{
+ int i;
+ for (i = 0; i < BE_STAT_COUNT; ++i) {
+ (*stats)[i] -= (*sub)[i];
+ }
+}
+
+void be_copy_node_stats(be_node_stats_t *dest, be_node_stats_t *src)
+{
+ memcpy(dest, src, sizeof(be_node_stats_t));
+}
+
+static const char *get_stat_name(enum be_stat_tag_t tag)
+{
+ switch(tag) {
+ case BE_STAT_PHIS: return "phis";
+ case BE_STAT_MEM_PHIS: return "mem_phis";
+ case BE_STAT_COPIES: return "copies";
+ case BE_STAT_PERMS: return "perms";
+ case BE_STAT_SPILLS: return "spills";
+ case BE_STAT_RELOADS: return "reloads";
+ case BE_STAT_REMATS: return "remats";
+ default: panic("unknown stat tag found");
+ }
+}
+
+void be_emit_node_stats(be_node_stats_t *stats, const char *prefix)
+{
+ static char buf[256];
+ int i;
+
+ for (i = 0; i < BE_STAT_COUNT; ++i) {
+ snprintf(buf, sizeof(buf), "%s%s", prefix, get_stat_name(i));
+ stat_ev_dbl(buf, (*stats)[i]);
+ }
+}
+
+
+
+static void insn_count_walker(ir_node *irn, void *data)
+{
+ unsigned long *cnt = data;
+
+ switch(get_irn_opcode(irn)) {
+ case iro_Proj:
+ case iro_Phi:
+ case iro_Start:
+ case iro_End:
+ break;
+ default:
+ (*cnt)++;
+ }
+}
+
+unsigned long be_count_insns(ir_graph *irg)
+{
+ unsigned long cnt = 0;
+ irg_walk_graph(irg, insn_count_walker, NULL, &cnt);
+ return cnt;
+}
+
+static void block_count_walker(ir_node *node, void *data)
+{
+ unsigned long *cnt = data;
+ if (node == get_irg_end_block(current_ir_graph))
+ return;
+ (*cnt)++;
+}
+
+unsigned long be_count_blocks(ir_graph *irg)
+{
+ unsigned long cnt = 0;
+ irg_block_walk_graph(irg, block_count_walker, NULL, &cnt);
+ return cnt;
+}