Mercurial > hg > CbC > CbC_gcc
annotate gcc/statistics.c @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Optimization statistics functions. |
| 145 | 2 Copyright (C) 2008-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Richard Guenther <rguenther@suse.de> |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #include "config.h" | |
| 22 #include "system.h" | |
| 23 #include "coretypes.h" | |
| 111 | 24 #include "function.h" |
| 0 | 25 #include "tree-pass.h" |
| 111 | 26 #include "context.h" |
| 27 #include "pass_manager.h" | |
| 0 | 28 |
| 29 static int statistics_dump_nr; | |
| 111 | 30 static dump_flags_t statistics_dump_flags; |
| 0 | 31 static FILE *statistics_dump_file; |
| 32 | |
| 33 /* Statistics entry. A integer counter associated to a string ID | |
| 34 and value. */ | |
| 35 | |
| 111 | 36 struct statistics_counter { |
| 0 | 37 const char *id; |
| 38 int val; | |
| 39 bool histogram_p; | |
| 40 unsigned HOST_WIDE_INT count; | |
| 41 unsigned HOST_WIDE_INT prev_dumped_count; | |
| 111 | 42 }; |
| 43 | |
| 44 /* Hashtable helpers. */ | |
| 0 | 45 |
| 111 | 46 struct stats_counter_hasher : pointer_hash <statistics_counter> |
| 47 { | |
| 48 static inline hashval_t hash (const statistics_counter *); | |
| 49 static inline bool equal (const statistics_counter *, | |
| 50 const statistics_counter *); | |
| 51 static inline void remove (statistics_counter *); | |
| 52 }; | |
| 0 | 53 |
| 54 /* Hash a statistic counter by its string ID. */ | |
| 55 | |
| 111 | 56 inline hashval_t |
| 57 stats_counter_hasher::hash (const statistics_counter *c) | |
| 0 | 58 { |
| 59 return htab_hash_string (c->id) + c->val; | |
| 60 } | |
| 61 | |
| 62 /* Compare two statistic counters by their string IDs. */ | |
| 63 | |
| 111 | 64 inline bool |
| 65 stats_counter_hasher::equal (const statistics_counter *c1, | |
| 66 const statistics_counter *c2) | |
| 0 | 67 { |
| 68 return c1->val == c2->val && strcmp (c1->id, c2->id) == 0; | |
| 69 } | |
| 70 | |
| 71 /* Free a statistics entry. */ | |
| 72 | |
| 111 | 73 inline void |
| 74 stats_counter_hasher::remove (statistics_counter *v) | |
| 0 | 75 { |
| 111 | 76 free (CONST_CAST (char *, v->id)); |
| 77 free (v); | |
| 0 | 78 } |
| 79 | |
| 111 | 80 typedef hash_table<stats_counter_hasher> stats_counter_table_type; |
| 81 | |
| 82 /* Array of statistic hashes, indexed by pass id. */ | |
| 83 static stats_counter_table_type **statistics_hashes; | |
| 84 static unsigned nr_statistics_hashes; | |
| 85 | |
| 0 | 86 /* Return the current hashtable to be used for recording or printing |
| 87 statistics. */ | |
| 88 | |
| 111 | 89 static stats_counter_table_type * |
| 0 | 90 curr_statistics_hash (void) |
| 91 { | |
|
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92 unsigned idx; |
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93 |
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94 gcc_assert (current_pass->static_pass_number >= 0); |
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95 idx = current_pass->static_pass_number; |
| 0 | 96 |
| 97 if (idx < nr_statistics_hashes | |
| 111 | 98 && statistics_hashes[idx]) |
| 0 | 99 return statistics_hashes[idx]; |
| 100 | |
| 101 if (idx >= nr_statistics_hashes) | |
| 102 { | |
| 111 | 103 statistics_hashes = XRESIZEVEC (stats_counter_table_type *, |
| 104 statistics_hashes, idx+1); | |
| 0 | 105 memset (statistics_hashes + nr_statistics_hashes, 0, |
| 111 | 106 (idx + 1 - nr_statistics_hashes) |
| 107 * sizeof (stats_counter_table_type *)); | |
| 0 | 108 nr_statistics_hashes = idx + 1; |
| 109 } | |
| 110 | |
| 111 | 111 statistics_hashes[idx] = new stats_counter_table_type (15); |
| 0 | 112 |
| 113 return statistics_hashes[idx]; | |
| 114 } | |
| 115 | |
| 116 /* Helper for statistics_fini_pass. Print the counter difference | |
| 117 since the last dump for the pass dump files. */ | |
| 118 | |
| 111 | 119 int |
| 120 statistics_fini_pass_1 (statistics_counter **slot, | |
| 121 void *data ATTRIBUTE_UNUSED) | |
| 0 | 122 { |
| 111 | 123 statistics_counter *counter = *slot; |
| 0 | 124 unsigned HOST_WIDE_INT count = counter->count - counter->prev_dumped_count; |
| 125 if (count == 0) | |
| 126 return 1; | |
| 127 if (counter->histogram_p) | |
| 128 fprintf (dump_file, "%s == %d: " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 129 counter->id, counter->val, count); | |
| 130 else | |
| 131 fprintf (dump_file, "%s: " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 132 counter->id, count); | |
| 133 counter->prev_dumped_count = counter->count; | |
| 134 return 1; | |
| 135 } | |
| 136 | |
| 137 /* Helper for statistics_fini_pass. Print the counter difference | |
| 138 since the last dump for the statistics dump. */ | |
| 139 | |
| 111 | 140 int |
| 141 statistics_fini_pass_2 (statistics_counter **slot, | |
| 142 void *data ATTRIBUTE_UNUSED) | |
| 0 | 143 { |
| 111 | 144 statistics_counter *counter = *slot; |
| 0 | 145 unsigned HOST_WIDE_INT count = counter->count - counter->prev_dumped_count; |
| 146 if (count == 0) | |
| 147 return 1; | |
| 148 counter->prev_dumped_count = counter->count; | |
| 149 if (counter->histogram_p) | |
| 150 fprintf (statistics_dump_file, | |
| 151 "%d %s \"%s == %d\" \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 152 current_pass->static_pass_number, | |
| 153 current_pass->name, | |
| 154 counter->id, counter->val, | |
| 111 | 155 current_function_name (), |
| 0 | 156 count); |
| 157 else | |
| 158 fprintf (statistics_dump_file, | |
| 159 "%d %s \"%s\" \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 160 current_pass->static_pass_number, | |
| 161 current_pass->name, | |
| 162 counter->id, | |
| 111 | 163 current_function_name (), |
| 0 | 164 count); |
| 165 counter->prev_dumped_count = counter->count; | |
| 166 return 1; | |
| 167 } | |
| 168 | |
| 169 /* Helper for statistics_fini_pass, reset the counters. */ | |
| 170 | |
| 111 | 171 int |
| 172 statistics_fini_pass_3 (statistics_counter **slot, | |
| 173 void *data ATTRIBUTE_UNUSED) | |
| 0 | 174 { |
| 111 | 175 statistics_counter *counter = *slot; |
| 0 | 176 counter->prev_dumped_count = counter->count; |
| 177 return 1; | |
| 178 } | |
| 179 | |
| 180 /* Dump the current statistics incrementally. */ | |
| 181 | |
| 182 void | |
| 183 statistics_fini_pass (void) | |
| 184 { | |
| 185 if (current_pass->static_pass_number == -1) | |
| 186 return; | |
| 187 | |
| 188 if (dump_file | |
| 189 && dump_flags & TDF_STATS) | |
| 190 { | |
| 191 fprintf (dump_file, "\n"); | |
| 111 | 192 fprintf (dump_file, "Pass statistics of \"%s\": ", current_pass->name); |
| 0 | 193 fprintf (dump_file, "----------------\n"); |
| 111 | 194 curr_statistics_hash () |
| 195 ->traverse_noresize <void *, statistics_fini_pass_1> (NULL); | |
| 0 | 196 fprintf (dump_file, "\n"); |
| 197 } | |
| 198 if (statistics_dump_file | |
| 199 && !(statistics_dump_flags & TDF_STATS | |
| 200 || statistics_dump_flags & TDF_DETAILS)) | |
| 111 | 201 curr_statistics_hash () |
| 202 ->traverse_noresize <void *, statistics_fini_pass_2> (NULL); | |
| 203 curr_statistics_hash () | |
| 204 ->traverse_noresize <void *, statistics_fini_pass_3> (NULL); | |
| 0 | 205 } |
| 206 | |
| 207 /* Helper for printing summary information. */ | |
| 208 | |
| 111 | 209 int |
| 210 statistics_fini_1 (statistics_counter **slot, opt_pass *pass) | |
| 0 | 211 { |
| 111 | 212 statistics_counter *counter = *slot; |
| 0 | 213 if (counter->count == 0) |
| 214 return 1; | |
| 215 if (counter->histogram_p) | |
| 216 fprintf (statistics_dump_file, | |
| 217 "%d %s \"%s == %d\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 218 pass->static_pass_number, | |
| 219 pass->name, | |
| 220 counter->id, counter->val, | |
| 221 counter->count); | |
| 222 else | |
| 223 fprintf (statistics_dump_file, | |
| 224 "%d %s \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
| 225 pass->static_pass_number, | |
| 226 pass->name, | |
| 227 counter->id, | |
| 228 counter->count); | |
| 229 return 1; | |
| 230 } | |
| 231 | |
| 232 /* Finish the statistics and dump summary information. */ | |
| 233 | |
| 234 void | |
| 235 statistics_fini (void) | |
| 236 { | |
| 111 | 237 gcc::pass_manager *passes = g->get_passes (); |
| 0 | 238 if (!statistics_dump_file) |
| 239 return; | |
| 240 | |
| 241 if (statistics_dump_flags & TDF_STATS) | |
| 242 { | |
| 243 unsigned i; | |
| 244 for (i = 0; i < nr_statistics_hashes; ++i) | |
| 111 | 245 if (statistics_hashes[i] |
| 246 && passes->get_pass_for_id (i) != NULL) | |
| 247 statistics_hashes[i] | |
| 248 ->traverse_noresize <opt_pass *, statistics_fini_1> | |
| 249 (passes->get_pass_for_id (i)); | |
| 0 | 250 } |
| 251 | |
| 252 dump_end (statistics_dump_nr, statistics_dump_file); | |
| 253 } | |
| 254 | |
| 255 /* Register the statistics dump file. */ | |
| 256 | |
| 257 void | |
| 258 statistics_early_init (void) | |
| 259 { | |
| 111 | 260 gcc::dump_manager *dumps = g->get_dumps (); |
| 261 statistics_dump_nr = dumps->dump_register (".statistics", "statistics", | |
| 262 "statistics", DK_tree, | |
| 263 OPTGROUP_NONE, | |
| 264 false); | |
| 0 | 265 } |
| 266 | |
| 267 /* Init the statistics. */ | |
| 268 | |
| 269 void | |
| 270 statistics_init (void) | |
| 271 { | |
| 111 | 272 gcc::dump_manager *dumps = g->get_dumps (); |
| 0 | 273 statistics_dump_file = dump_begin (statistics_dump_nr, NULL); |
| 111 | 274 statistics_dump_flags = dumps->get_dump_file_info (statistics_dump_nr)->pflags; |
| 0 | 275 } |
| 276 | |
| 277 /* Lookup or add a statistics counter in the hashtable HASH with ID, VAL | |
| 278 and HISTOGRAM_P. */ | |
| 279 | |
| 111 | 280 static statistics_counter * |
| 281 lookup_or_add_counter (stats_counter_table_type *hash, const char *id, int val, | |
| 0 | 282 bool histogram_p) |
| 283 { | |
| 111 | 284 statistics_counter **counter; |
| 285 statistics_counter c; | |
| 0 | 286 c.id = id; |
| 287 c.val = val; | |
| 111 | 288 counter = hash->find_slot (&c, INSERT); |
| 0 | 289 if (!*counter) |
| 290 { | |
| 111 | 291 *counter = XNEW (statistics_counter); |
| 0 | 292 (*counter)->id = xstrdup (id); |
| 293 (*counter)->val = val; | |
| 294 (*counter)->histogram_p = histogram_p; | |
| 295 (*counter)->prev_dumped_count = 0; | |
| 296 (*counter)->count = 0; | |
| 297 } | |
| 298 return *counter; | |
| 299 } | |
| 300 | |
| 301 /* Add statistics information about event ID in function FN. | |
| 302 This will increment the counter associated with ID by INCR. | |
| 303 It will also dump the event to the global statistics file if requested. */ | |
| 304 | |
| 305 void | |
| 306 statistics_counter_event (struct function *fn, const char *id, int incr) | |
| 307 { | |
| 111 | 308 statistics_counter *counter; |
| 0 | 309 |
| 310 if ((!(dump_flags & TDF_STATS) | |
| 311 && !statistics_dump_file) | |
| 312 || incr == 0) | |
| 313 return; | |
| 314 | |
| 111 | 315 if (current_pass |
| 316 && current_pass->static_pass_number != -1) | |
|
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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317 { |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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318 counter = lookup_or_add_counter (curr_statistics_hash (), id, 0, false); |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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319 gcc_assert (!counter->histogram_p); |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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320 counter->count += incr; |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
321 } |
| 0 | 322 |
| 323 if (!statistics_dump_file | |
| 324 || !(statistics_dump_flags & TDF_DETAILS)) | |
| 325 return; | |
| 326 | |
| 327 fprintf (statistics_dump_file, | |
| 328 "%d %s \"%s\" \"%s\" %d\n", | |
| 111 | 329 current_pass ? current_pass->static_pass_number : -1, |
| 330 current_pass ? current_pass->name : "none", | |
| 0 | 331 id, |
| 111 | 332 function_name (fn), |
| 0 | 333 incr); |
| 334 } | |
| 335 | |
| 336 /* Add statistics information about event ID in function FN with the | |
| 337 histogram value VAL. | |
| 338 It will dump the event to the global statistics file if requested. */ | |
| 339 | |
| 340 void | |
| 341 statistics_histogram_event (struct function *fn, const char *id, int val) | |
| 342 { | |
| 111 | 343 statistics_counter *counter; |
| 0 | 344 |
| 345 if (!(dump_flags & TDF_STATS) | |
| 346 && !statistics_dump_file) | |
| 347 return; | |
| 348 | |
| 349 counter = lookup_or_add_counter (curr_statistics_hash (), id, val, true); | |
| 350 gcc_assert (counter->histogram_p); | |
| 351 counter->count += 1; | |
| 352 | |
| 353 if (!statistics_dump_file | |
| 354 || !(statistics_dump_flags & TDF_DETAILS)) | |
| 355 return; | |
| 356 | |
| 357 fprintf (statistics_dump_file, | |
| 358 "%d %s \"%s == %d\" \"%s\" 1\n", | |
| 359 current_pass->static_pass_number, | |
| 360 current_pass->name, | |
| 361 id, val, | |
| 111 | 362 function_name (fn)); |
| 0 | 363 } |