Mercurial > hg > CbC > CbC_gcc
annotate gcc/statistics.c @ 64:d9bee9007a48
Added tag gcc-4.6-20100522 for changeset b7f97abdc517
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Mon, 24 May 2010 12:48:09 +0900 |
parents | 77e2b8dfacca |
children | f6334be47118 |
rev | line source |
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0 | 1 /* Optimization statistics functions. |
2 Copyright (C) 2008 | |
3 Free Software Foundation, Inc. | |
4 Contributed by Richard Guenther <rguenther@suse.de> | |
5 | |
6 This file is part of GCC. | |
7 | |
8 GCC is free software; you can redistribute it and/or modify it under | |
9 the terms of the GNU General Public License as published by the Free | |
10 Software Foundation; either version 3, or (at your option) any later | |
11 version. | |
12 | |
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
19 along with GCC; see the file COPYING3. If not see | |
20 <http://www.gnu.org/licenses/>. */ | |
21 | |
22 #include "config.h" | |
23 #include "system.h" | |
24 #include "coretypes.h" | |
25 #include "tree-pass.h" | |
26 #include "tree-dump.h" | |
27 #include "statistics.h" | |
28 #include "hashtab.h" | |
29 #include "tm.h" | |
30 #include "function.h" | |
31 | |
32 static int statistics_dump_nr; | |
33 static int statistics_dump_flags; | |
34 static FILE *statistics_dump_file; | |
35 | |
36 /* Statistics entry. A integer counter associated to a string ID | |
37 and value. */ | |
38 | |
39 typedef struct statistics_counter_s { | |
40 const char *id; | |
41 int val; | |
42 bool histogram_p; | |
43 unsigned HOST_WIDE_INT count; | |
44 unsigned HOST_WIDE_INT prev_dumped_count; | |
45 } statistics_counter_t; | |
46 | |
47 /* Array of statistic hashes, indexed by pass id. */ | |
48 static htab_t *statistics_hashes; | |
49 static unsigned nr_statistics_hashes; | |
50 | |
51 /* Hash a statistic counter by its string ID. */ | |
52 | |
53 static hashval_t | |
54 hash_statistics_hash (const void *p) | |
55 { | |
56 const statistics_counter_t *const c = (const statistics_counter_t *)p; | |
57 return htab_hash_string (c->id) + c->val; | |
58 } | |
59 | |
60 /* Compare two statistic counters by their string IDs. */ | |
61 | |
62 static int | |
63 hash_statistics_eq (const void *p, const void *q) | |
64 { | |
65 const statistics_counter_t *const c1 = (const statistics_counter_t *)p; | |
66 const statistics_counter_t *const c2 = (const statistics_counter_t *)q; | |
67 return c1->val == c2->val && strcmp (c1->id, c2->id) == 0; | |
68 } | |
69 | |
70 /* Free a statistics entry. */ | |
71 | |
72 static void | |
73 hash_statistics_free (void *p) | |
74 { | |
75 free (CONST_CAST(char *, ((statistics_counter_t *)p)->id)); | |
76 free (p); | |
77 } | |
78 | |
79 /* Return the current hashtable to be used for recording or printing | |
80 statistics. */ | |
81 | |
82 static htab_t | |
83 curr_statistics_hash (void) | |
84 { | |
55
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85 unsigned idx; |
77e2b8dfacca
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86 |
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87 gcc_assert (current_pass->static_pass_number >= 0); |
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88 idx = current_pass->static_pass_number; |
0 | 89 |
90 if (idx < nr_statistics_hashes | |
91 && statistics_hashes[idx] != NULL) | |
92 return statistics_hashes[idx]; | |
93 | |
94 if (idx >= nr_statistics_hashes) | |
95 { | |
96 statistics_hashes = XRESIZEVEC (struct htab *, statistics_hashes, idx+1); | |
97 memset (statistics_hashes + nr_statistics_hashes, 0, | |
98 (idx + 1 - nr_statistics_hashes) * sizeof (htab_t)); | |
99 nr_statistics_hashes = idx + 1; | |
100 } | |
101 | |
102 statistics_hashes[idx] = htab_create (15, hash_statistics_hash, | |
103 hash_statistics_eq, | |
104 hash_statistics_free); | |
105 | |
106 return statistics_hashes[idx]; | |
107 } | |
108 | |
109 /* Helper for statistics_fini_pass. Print the counter difference | |
110 since the last dump for the pass dump files. */ | |
111 | |
112 static int | |
113 statistics_fini_pass_1 (void **slot, void *data ATTRIBUTE_UNUSED) | |
114 { | |
115 statistics_counter_t *counter = (statistics_counter_t *)*slot; | |
116 unsigned HOST_WIDE_INT count = counter->count - counter->prev_dumped_count; | |
117 if (count == 0) | |
118 return 1; | |
119 if (counter->histogram_p) | |
120 fprintf (dump_file, "%s == %d: " HOST_WIDE_INT_PRINT_DEC "\n", | |
121 counter->id, counter->val, count); | |
122 else | |
123 fprintf (dump_file, "%s: " HOST_WIDE_INT_PRINT_DEC "\n", | |
124 counter->id, count); | |
125 counter->prev_dumped_count = counter->count; | |
126 return 1; | |
127 } | |
128 | |
129 /* Helper for statistics_fini_pass. Print the counter difference | |
130 since the last dump for the statistics dump. */ | |
131 | |
132 static int | |
133 statistics_fini_pass_2 (void **slot, void *data ATTRIBUTE_UNUSED) | |
134 { | |
135 statistics_counter_t *counter = (statistics_counter_t *)*slot; | |
136 unsigned HOST_WIDE_INT count = counter->count - counter->prev_dumped_count; | |
137 if (count == 0) | |
138 return 1; | |
139 counter->prev_dumped_count = counter->count; | |
140 if (counter->histogram_p) | |
141 fprintf (statistics_dump_file, | |
142 "%d %s \"%s == %d\" \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
143 current_pass->static_pass_number, | |
144 current_pass->name, | |
145 counter->id, counter->val, | |
146 cfun ? IDENTIFIER_POINTER (DECL_NAME (cfun->decl)) : "(nofn)", | |
147 count); | |
148 else | |
149 fprintf (statistics_dump_file, | |
150 "%d %s \"%s\" \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
151 current_pass->static_pass_number, | |
152 current_pass->name, | |
153 counter->id, | |
154 cfun ? IDENTIFIER_POINTER (DECL_NAME (cfun->decl)) : "(nofn)", | |
155 count); | |
156 counter->prev_dumped_count = counter->count; | |
157 return 1; | |
158 } | |
159 | |
160 /* Helper for statistics_fini_pass, reset the counters. */ | |
161 | |
162 static int | |
163 statistics_fini_pass_3 (void **slot, void *data ATTRIBUTE_UNUSED) | |
164 { | |
165 statistics_counter_t *counter = (statistics_counter_t *)*slot; | |
166 counter->prev_dumped_count = counter->count; | |
167 return 1; | |
168 } | |
169 | |
170 /* Dump the current statistics incrementally. */ | |
171 | |
172 void | |
173 statistics_fini_pass (void) | |
174 { | |
175 if (current_pass->static_pass_number == -1) | |
176 return; | |
177 | |
178 if (dump_file | |
179 && dump_flags & TDF_STATS) | |
180 { | |
181 fprintf (dump_file, "\n"); | |
182 fprintf (dump_file, "Pass statistics:\n"); | |
183 fprintf (dump_file, "----------------\n"); | |
184 htab_traverse_noresize (curr_statistics_hash (), | |
185 statistics_fini_pass_1, NULL); | |
186 fprintf (dump_file, "\n"); | |
187 } | |
188 if (statistics_dump_file | |
189 && !(statistics_dump_flags & TDF_STATS | |
190 || statistics_dump_flags & TDF_DETAILS)) | |
191 htab_traverse_noresize (curr_statistics_hash (), | |
192 statistics_fini_pass_2, NULL); | |
193 htab_traverse_noresize (curr_statistics_hash (), | |
194 statistics_fini_pass_3, NULL); | |
195 } | |
196 | |
197 /* Helper for printing summary information. */ | |
198 | |
199 static int | |
200 statistics_fini_1 (void **slot, void *data) | |
201 { | |
202 struct opt_pass *pass = (struct opt_pass *)data; | |
203 statistics_counter_t *counter = (statistics_counter_t *)*slot; | |
204 if (counter->count == 0) | |
205 return 1; | |
206 if (counter->histogram_p) | |
207 fprintf (statistics_dump_file, | |
208 "%d %s \"%s == %d\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
209 pass->static_pass_number, | |
210 pass->name, | |
211 counter->id, counter->val, | |
212 counter->count); | |
213 else | |
214 fprintf (statistics_dump_file, | |
215 "%d %s \"%s\" " HOST_WIDE_INT_PRINT_DEC "\n", | |
216 pass->static_pass_number, | |
217 pass->name, | |
218 counter->id, | |
219 counter->count); | |
220 return 1; | |
221 } | |
222 | |
223 /* Finish the statistics and dump summary information. */ | |
224 | |
225 void | |
226 statistics_fini (void) | |
227 { | |
228 if (!statistics_dump_file) | |
229 return; | |
230 | |
231 if (statistics_dump_flags & TDF_STATS) | |
232 { | |
233 unsigned i; | |
234 for (i = 0; i < nr_statistics_hashes; ++i) | |
235 if (statistics_hashes[i] != NULL | |
236 && get_pass_for_id (i) != NULL) | |
237 htab_traverse_noresize (statistics_hashes[i], | |
238 statistics_fini_1, get_pass_for_id (i)); | |
239 } | |
240 | |
241 dump_end (statistics_dump_nr, statistics_dump_file); | |
242 } | |
243 | |
244 /* Register the statistics dump file. */ | |
245 | |
246 void | |
247 statistics_early_init (void) | |
248 { | |
249 statistics_dump_nr = dump_register (".statistics", "statistics", | |
250 "statistics", TDF_TREE); | |
251 } | |
252 | |
253 /* Init the statistics. */ | |
254 | |
255 void | |
256 statistics_init (void) | |
257 { | |
258 statistics_dump_file = dump_begin (statistics_dump_nr, NULL); | |
259 statistics_dump_flags = get_dump_file_info (statistics_dump_nr)->flags; | |
260 } | |
261 | |
262 /* Lookup or add a statistics counter in the hashtable HASH with ID, VAL | |
263 and HISTOGRAM_P. */ | |
264 | |
265 static statistics_counter_t * | |
266 lookup_or_add_counter (htab_t hash, const char *id, int val, | |
267 bool histogram_p) | |
268 { | |
269 statistics_counter_t **counter; | |
270 statistics_counter_t c; | |
271 c.id = id; | |
272 c.val = val; | |
273 counter = (statistics_counter_t **) htab_find_slot (hash, &c, INSERT); | |
274 if (!*counter) | |
275 { | |
276 *counter = XNEW (struct statistics_counter_s); | |
277 (*counter)->id = xstrdup (id); | |
278 (*counter)->val = val; | |
279 (*counter)->histogram_p = histogram_p; | |
280 (*counter)->prev_dumped_count = 0; | |
281 (*counter)->count = 0; | |
282 } | |
283 return *counter; | |
284 } | |
285 | |
286 /* Add statistics information about event ID in function FN. | |
287 This will increment the counter associated with ID by INCR. | |
288 It will also dump the event to the global statistics file if requested. */ | |
289 | |
290 void | |
291 statistics_counter_event (struct function *fn, const char *id, int incr) | |
292 { | |
293 statistics_counter_t *counter; | |
294 | |
295 if ((!(dump_flags & TDF_STATS) | |
296 && !statistics_dump_file) | |
297 || incr == 0) | |
298 return; | |
299 | |
55
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
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300 if (current_pass->static_pass_number != -1) |
77e2b8dfacca
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301 { |
77e2b8dfacca
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302 counter = lookup_or_add_counter (curr_statistics_hash (), id, 0, false); |
77e2b8dfacca
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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303 gcc_assert (!counter->histogram_p); |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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304 counter->count += incr; |
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
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305 } |
0 | 306 |
307 if (!statistics_dump_file | |
308 || !(statistics_dump_flags & TDF_DETAILS)) | |
309 return; | |
310 | |
311 fprintf (statistics_dump_file, | |
312 "%d %s \"%s\" \"%s\" %d\n", | |
313 current_pass->static_pass_number, | |
314 current_pass->name, | |
315 id, | |
316 fn ? IDENTIFIER_POINTER (DECL_NAME (fn->decl)) : "(nofn)", | |
317 incr); | |
318 } | |
319 | |
320 /* Add statistics information about event ID in function FN with the | |
321 histogram value VAL. | |
322 It will dump the event to the global statistics file if requested. */ | |
323 | |
324 void | |
325 statistics_histogram_event (struct function *fn, const char *id, int val) | |
326 { | |
327 statistics_counter_t *counter; | |
328 | |
329 if (!(dump_flags & TDF_STATS) | |
330 && !statistics_dump_file) | |
331 return; | |
332 | |
333 counter = lookup_or_add_counter (curr_statistics_hash (), id, val, true); | |
334 gcc_assert (counter->histogram_p); | |
335 counter->count += 1; | |
336 | |
337 if (!statistics_dump_file | |
338 || !(statistics_dump_flags & TDF_DETAILS)) | |
339 return; | |
340 | |
341 fprintf (statistics_dump_file, | |
342 "%d %s \"%s == %d\" \"%s\" 1\n", | |
343 current_pass->static_pass_number, | |
344 current_pass->name, | |
345 id, val, | |
346 fn ? IDENTIFIER_POINTER (DECL_NAME (fn->decl)) : "(nofn)"); | |
347 } |