1 /*
2 * Copyright (c) 2001, 2021, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciMetadata.hpp"
27 #include "ci/ciMethodData.hpp"
28 #include "ci/ciReplay.hpp"
29 #include "ci/ciUtilities.inline.hpp"
30 #include "compiler/compiler_globals.hpp"
31 #include "memory/allocation.inline.hpp"
32 #include "memory/resourceArea.hpp"
33 #include "oops/klass.inline.hpp"
34 #include "runtime/deoptimization.hpp"
35 #include "utilities/copy.hpp"
36
37 // ciMethodData
38
39 // ------------------------------------------------------------------
40 // ciMethodData::ciMethodData
41 //
42 ciMethodData::ciMethodData(MethodData* md)
43 : ciMetadata(md),
44 _data_size(0), _extra_data_size(0), _data(NULL),
45 // Set an initial hint. Don't use set_hint_di() because
46 // first_di() may be out of bounds if data_size is 0.
47 _hint_di(first_di()),
48 _state(empty_state),
49 _saw_free_extra_data(false),
50 // Initialize the escape information (to "don't know.");
51 _eflags(0), _arg_local(0), _arg_stack(0), _arg_returned(0),
52 _invocation_counter(0),
53 _orig(),
54 _parameters(NULL) {}
55
56 // Check for entries that reference an unloaded method
57 class PrepareExtraDataClosure : public CleanExtraDataClosure {
58 MethodData* _mdo;
59 SafepointStateTracker _safepoint_tracker;
60 GrowableArray<Method*> _uncached_methods;
61
62 public:
63 PrepareExtraDataClosure(MethodData* mdo)
64 : _mdo(mdo),
65 _safepoint_tracker(SafepointSynchronize::safepoint_state_tracker()),
66 _uncached_methods()
67 { }
68
69 bool is_live(Method* m) {
70 if (!m->method_holder()->is_loader_alive()) {
71 return false;
72 }
73 if (CURRENT_ENV->cached_metadata(m) == NULL) {
74 // Uncached entries need to be pre-populated.
75 _uncached_methods.append(m);
76 }
77 return true;
78 }
79
80 bool has_safepointed() {
81 return _safepoint_tracker.safepoint_state_changed();
82 }
83
84 bool finish() {
85 if (_uncached_methods.length() == 0) {
86 // Preparation finished iff all Methods* were already cached.
87 return true;
88 }
89 // Holding locks through safepoints is bad practice.
90 MutexUnlocker mu(_mdo->extra_data_lock());
91 for (int i = 0; i < _uncached_methods.length(); ++i) {
92 if (has_safepointed()) {
93 // The metadata in the growable array might contain stale
94 // entries after a safepoint.
95 return false;
96 }
97 Method* method = _uncached_methods.at(i);
98 // Populating ciEnv caches may cause safepoints due
99 // to taking the Compile_lock with safepoint checks.
100 (void)CURRENT_ENV->get_method(method);
101 }
102 return false;
103 }
104 };
105
106 void ciMethodData::prepare_metadata() {
107 MethodData* mdo = get_MethodData();
108
109 for (;;) {
110 ResourceMark rm;
111 PrepareExtraDataClosure cl(mdo);
112 mdo->clean_extra_data(&cl);
113 if (cl.finish()) {
114 // When encountering uncached metadata, the Compile_lock might be
115 // acquired when creating ciMetadata handles, causing safepoints
116 // which requires a new round of preparation to clean out potentially
117 // new unloading metadata.
118 return;
119 }
120 }
121 }
122
123 void ciMethodData::load_remaining_extra_data() {
124 MethodData* mdo = get_MethodData();
125 MutexLocker ml(mdo->extra_data_lock());
126 // Deferred metadata cleaning due to concurrent class unloading.
127 prepare_metadata();
128 // After metadata preparation, there is no stale metadata,
129 // and no safepoints can introduce more stale metadata.
130 NoSafepointVerifier no_safepoint;
131
132 assert((mdo->data_size() == _data_size) && (mdo->extra_data_size() == _extra_data_size), "sanity, unchanged");
133 assert(extra_data_base() == (DataLayout*)((address) _data + _data_size), "sanity");
134
135 // Copy the extra data once it is prepared (i.e. cache populated, no release of extra data lock anymore)
136 Copy::disjoint_words_atomic((HeapWord*) mdo->extra_data_base(),
137 (HeapWord*)((address) _data + _data_size),
138 (_extra_data_size - mdo->parameters_size_in_bytes()) / HeapWordSize);
139
140 // speculative trap entries also hold a pointer to a Method so need to be translated
141 DataLayout* dp_src = mdo->extra_data_base();
142 DataLayout* end_src = mdo->args_data_limit();
143 DataLayout* dp_dst = extra_data_base();
144 for (;; dp_src = MethodData::next_extra(dp_src), dp_dst = MethodData::next_extra(dp_dst)) {
145 assert(dp_src < end_src, "moved past end of extra data");
146 assert(((intptr_t)dp_dst) - ((intptr_t)extra_data_base()) == ((intptr_t)dp_src) - ((intptr_t)mdo->extra_data_base()), "source and destination don't match");
147
148 int tag = dp_src->tag();
149 switch(tag) {
150 case DataLayout::speculative_trap_data_tag: {
151 ciSpeculativeTrapData data_dst(dp_dst);
152 SpeculativeTrapData data_src(dp_src);
153 data_dst.translate_from(&data_src);
154 break;
155 }
156 case DataLayout::bit_data_tag:
157 break;
158 case DataLayout::no_tag:
159 case DataLayout::arg_info_data_tag:
160 // An empty slot or ArgInfoData entry marks the end of the trap data
161 {
162 return; // Need a block to avoid SS compiler bug
163 }
164 default:
165 fatal("bad tag = %d", tag);
166 }
167 }
168 }
169
170 bool ciMethodData::load_data() {
171 MethodData* mdo = get_MethodData();
172 if (mdo == NULL) {
173 return false;
174 }
175
176 // To do: don't copy the data if it is not "ripe" -- require a minimum #
177 // of invocations.
178
179 // Snapshot the data and extra parameter data first without the extra trap and arg info data.
180 // Those are copied in a second step. Actually, an approximate snapshot of the data is taken.
181 // Any concurrently executing threads may be changing the data as we copy it.
182 //
183 // The first snapshot step requires two copies (data entries and parameter data entries) since
184 // the MDO is laid out as follows:
185 //
186 // data_base: ---------------------------
187 // | data entries |
188 // | ... |
189 // extra_data_base: ---------------------------
190 // | trap data entries |
191 // | ... |
192 // | one arg info data entry |
193 // | data for each arg |
194 // | ... |
195 // args_data_limit: ---------------------------
196 // | parameter data entries |
197 // | ... |
198 // extra_data_limit: ---------------------------
199 //
200 // _data_size = extra_data_base - data_base
201 // _extra_data_size = extra_data_limit - extra_data_base
202 // total_size = _data_size + _extra_data_size
203 // args_data_limit = data_base + total_size - parameter_data_size
204
205 #ifndef ZERO
206 // Some Zero platforms do not have expected alignment, and do not use
207 // this code. static_assert would still fire and fail for them.
208 static_assert(sizeof(_orig) % HeapWordSize == 0, "align");
209 #endif
210 Copy::disjoint_words_atomic((HeapWord*) &mdo->_compiler_counters,
211 (HeapWord*) &_orig,
212 sizeof(_orig) / HeapWordSize);
213 Arena* arena = CURRENT_ENV->arena();
214 _data_size = mdo->data_size();
215 _extra_data_size = mdo->extra_data_size();
216 int total_size = _data_size + _extra_data_size;
217 _data = (intptr_t *) arena->Amalloc(total_size);
218 Copy::disjoint_words_atomic((HeapWord*) mdo->data_base(),
219 (HeapWord*) _data,
220 _data_size / HeapWordSize);
221
222 int parameters_data_size = mdo->parameters_size_in_bytes();
223 if (parameters_data_size > 0) {
224 // Snapshot the parameter data
225 Copy::disjoint_words_atomic((HeapWord*) mdo->args_data_limit(),
226 (HeapWord*) ((address)_data + total_size - parameters_data_size),
227 parameters_data_size / HeapWordSize);
228 }
229 // Traverse the profile data, translating any oops into their
230 // ci equivalents.
231 ResourceMark rm;
232 ciProfileData* ci_data = first_data();
233 ProfileData* data = mdo->first_data();
234 while (is_valid(ci_data)) {
235 ci_data->translate_from(data);
236 ci_data = next_data(ci_data);
237 data = mdo->next_data(data);
238 }
239 if (mdo->parameters_type_data() != NULL) {
240 _parameters = data_layout_at(mdo->parameters_type_data_di());
241 ciParametersTypeData* parameters = new ciParametersTypeData(_parameters);
242 parameters->translate_from(mdo->parameters_type_data());
243 }
244
245 assert((DataLayout*) ((address)_data + total_size - parameters_data_size) == args_data_limit(),
246 "sanity - parameter data starts after the argument data of the single ArgInfoData entry");
247 load_remaining_extra_data();
248
249 // Note: Extra data are all BitData, and do not need translation.
250 _invocation_counter = mdo->invocation_count();
251 _state = mdo->is_mature()? mature_state: immature_state;
252
253 _eflags = mdo->eflags();
254 _arg_local = mdo->arg_local();
255 _arg_stack = mdo->arg_stack();
256 _arg_returned = mdo->arg_returned();
257 #ifndef PRODUCT
258 if (ReplayCompiles) {
259 ciReplay::initialize(this);
260 if (is_empty()) {
261 return false;
262 }
263 }
264 #endif
265 return true;
266 }
267
268 void ciReceiverTypeData::translate_receiver_data_from(const ProfileData* data) {
269 for (uint row = 0; row < row_limit(); row++) {
270 Klass* k = data->as_ReceiverTypeData()->receiver(row);
271 if (k != NULL) {
272 if (k->is_loader_alive()) {
273 ciKlass* klass = CURRENT_ENV->get_klass(k);
274 set_receiver(row, klass);
275 } else {
276 // With concurrent class unloading, the MDO could have stale metadata; override it
277 clear_row(row);
278 }
279 } else {
280 set_receiver(row, NULL);
281 }
282 }
283 }
284
285 void ciTypeStackSlotEntries::translate_type_data_from(const TypeStackSlotEntries* entries) {
286 for (int i = 0; i < number_of_entries(); i++) {
287 intptr_t k = entries->type(i);
288 Klass* klass = (Klass*)klass_part(k);
289 if (klass != NULL && !klass->is_loader_alive()) {
290 // With concurrent class unloading, the MDO could have stale metadata; override it
291 TypeStackSlotEntries::set_type(i, TypeStackSlotEntries::with_status((Klass*)NULL, k));
292 } else {
293 TypeStackSlotEntries::set_type(i, translate_klass(k));
294 }
295 }
296 }
297
298 void ciSingleTypeEntry::translate_type_data_from(const SingleTypeEntry* ret) {
299 intptr_t k = ret->type();
300 Klass* klass = (Klass*)klass_part(k);
301 if (klass != NULL && !klass->is_loader_alive()) {
302 // With concurrent class unloading, the MDO could have stale metadata; override it
303 set_type(SingleTypeEntry::with_status((Klass*)NULL, k));
304 } else {
305 set_type(translate_klass(k));
306 }
307 }
308
309 void ciSpeculativeTrapData::translate_from(const ProfileData* data) {
310 Method* m = data->as_SpeculativeTrapData()->method();
311 ciMethod* ci_m = CURRENT_ENV->get_method(m);
312 set_method(ci_m);
313 }
314
315 // Get the data at an arbitrary (sort of) data index.
316 ciProfileData* ciMethodData::data_at(int data_index) {
317 if (out_of_bounds(data_index)) {
318 return NULL;
319 }
320 DataLayout* data_layout = data_layout_at(data_index);
321 return data_from(data_layout);
322 }
323
324 ciProfileData* ciMethodData::data_from(DataLayout* data_layout) {
325 switch (data_layout->tag()) {
326 case DataLayout::no_tag:
327 default:
328 ShouldNotReachHere();
329 return NULL;
330 case DataLayout::bit_data_tag:
331 return new ciBitData(data_layout);
332 case DataLayout::counter_data_tag:
333 return new ciCounterData(data_layout);
334 case DataLayout::jump_data_tag:
335 return new ciJumpData(data_layout);
336 case DataLayout::receiver_type_data_tag:
337 return new ciReceiverTypeData(data_layout);
338 case DataLayout::virtual_call_data_tag:
339 return new ciVirtualCallData(data_layout);
340 case DataLayout::ret_data_tag:
341 return new ciRetData(data_layout);
342 case DataLayout::branch_data_tag:
343 return new ciBranchData(data_layout);
344 case DataLayout::multi_branch_data_tag:
345 return new ciMultiBranchData(data_layout);
346 case DataLayout::arg_info_data_tag:
347 return new ciArgInfoData(data_layout);
348 case DataLayout::call_type_data_tag:
349 return new ciCallTypeData(data_layout);
350 case DataLayout::virtual_call_type_data_tag:
351 return new ciVirtualCallTypeData(data_layout);
352 case DataLayout::parameters_type_data_tag:
353 return new ciParametersTypeData(data_layout);
354 case DataLayout::array_load_store_data_tag:
355 return new ciArrayLoadStoreData(data_layout);
356 case DataLayout::acmp_data_tag:
357 return new ciACmpData(data_layout);
358 };
359 }
360
361 // Iteration over data.
362 ciProfileData* ciMethodData::next_data(ciProfileData* current) {
363 int current_index = dp_to_di(current->dp());
364 int next_index = current_index + current->size_in_bytes();
365 ciProfileData* next = data_at(next_index);
366 return next;
367 }
368
369 DataLayout* ciMethodData::next_data_layout(DataLayout* current) {
370 int current_index = dp_to_di((address)current);
371 int next_index = current_index + current->size_in_bytes();
372 if (out_of_bounds(next_index)) {
373 return NULL;
374 }
375 DataLayout* next = data_layout_at(next_index);
376 return next;
377 }
378
379 ciProfileData* ciMethodData::bci_to_extra_data(int bci, ciMethod* m, bool& two_free_slots) {
380 DataLayout* dp = extra_data_base();
381 DataLayout* end = args_data_limit();
382 two_free_slots = false;
383 for (;dp < end; dp = MethodData::next_extra(dp)) {
384 switch(dp->tag()) {
385 case DataLayout::no_tag:
386 _saw_free_extra_data = true; // observed an empty slot (common case)
387 two_free_slots = (MethodData::next_extra(dp)->tag() == DataLayout::no_tag);
388 return NULL;
389 case DataLayout::arg_info_data_tag:
390 return NULL; // ArgInfoData is after the trap data right before the parameter data.
391 case DataLayout::bit_data_tag:
392 if (m == NULL && dp->bci() == bci) {
393 return new ciBitData(dp);
394 }
395 break;
396 case DataLayout::speculative_trap_data_tag: {
397 ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
398 // data->method() might be null if the MDO is snapshotted
399 // concurrently with a trap
400 if (m != NULL && data->method() == m && dp->bci() == bci) {
401 return data;
402 }
403 break;
404 }
405 default:
406 fatal("bad tag = %d", dp->tag());
407 }
408 }
409 return NULL;
410 }
411
412 // Translate a bci to its corresponding data, or NULL.
413 ciProfileData* ciMethodData::bci_to_data(int bci, ciMethod* m) {
414 // If m is not NULL we look for a SpeculativeTrapData entry
415 if (m == NULL) {
416 DataLayout* data_layout = data_layout_before(bci);
417 for ( ; is_valid(data_layout); data_layout = next_data_layout(data_layout)) {
418 if (data_layout->bci() == bci) {
419 set_hint_di(dp_to_di((address)data_layout));
420 return data_from(data_layout);
421 } else if (data_layout->bci() > bci) {
422 break;
423 }
424 }
425 }
426 bool two_free_slots = false;
427 ciProfileData* result = bci_to_extra_data(bci, m, two_free_slots);
428 if (result != NULL) {
429 return result;
430 }
431 if (m != NULL && !two_free_slots) {
432 // We were looking for a SpeculativeTrapData entry we didn't
433 // find. Room is not available for more SpeculativeTrapData
434 // entries, look in the non SpeculativeTrapData entries.
435 return bci_to_data(bci, NULL);
436 }
437 return NULL;
438 }
439
440 // Conservatively decode the trap_state of a ciProfileData.
441 int ciMethodData::has_trap_at(ciProfileData* data, int reason) {
442 typedef Deoptimization::DeoptReason DR_t;
443 int per_bc_reason
444 = Deoptimization::reason_recorded_per_bytecode_if_any((DR_t) reason);
445 if (trap_count(reason) == 0) {
446 // Impossible for this trap to have occurred, regardless of trap_state.
447 // Note: This happens if the MDO is empty.
448 return 0;
449 } else if (per_bc_reason == Deoptimization::Reason_none) {
450 // We cannot conclude anything; a trap happened somewhere, maybe here.
451 return -1;
452 } else if (data == NULL) {
453 // No profile here, not even an extra_data record allocated on the fly.
454 // If there are empty extra_data records, and there had been a trap,
455 // there would have been a non-null data pointer. If there are no
456 // free extra_data records, we must return a conservative -1.
457 if (_saw_free_extra_data)
458 return 0; // Q.E.D.
459 else
460 return -1; // bail with a conservative answer
461 } else {
462 return Deoptimization::trap_state_has_reason(data->trap_state(), per_bc_reason);
463 }
464 }
465
466 int ciMethodData::trap_recompiled_at(ciProfileData* data) {
467 if (data == NULL) {
468 return (_saw_free_extra_data? 0: -1); // (see previous method)
469 } else {
470 return Deoptimization::trap_state_is_recompiled(data->trap_state())? 1: 0;
471 }
472 }
473
474 void ciMethodData::clear_escape_info() {
475 VM_ENTRY_MARK;
476 MethodData* mdo = get_MethodData();
477 if (mdo != NULL) {
478 mdo->clear_escape_info();
479 ArgInfoData *aid = arg_info();
480 int arg_count = (aid == NULL) ? 0 : aid->number_of_args();
481 for (int i = 0; i < arg_count; i++) {
482 set_arg_modified(i, 0);
483 }
484 }
485 _eflags = _arg_local = _arg_stack = _arg_returned = 0;
486 }
487
488 // copy our escape info to the MethodData* if it exists
489 void ciMethodData::update_escape_info() {
490 VM_ENTRY_MARK;
491 MethodData* mdo = get_MethodData();
492 if ( mdo != NULL) {
493 mdo->set_eflags(_eflags);
494 mdo->set_arg_local(_arg_local);
495 mdo->set_arg_stack(_arg_stack);
496 mdo->set_arg_returned(_arg_returned);
497 int arg_count = mdo->method()->size_of_parameters();
498 for (int i = 0; i < arg_count; i++) {
499 mdo->set_arg_modified(i, arg_modified(i));
500 }
501 }
502 }
503
504 void ciMethodData::set_compilation_stats(short loops, short blocks) {
505 VM_ENTRY_MARK;
506 MethodData* mdo = get_MethodData();
507 if (mdo != NULL) {
508 mdo->set_num_loops(loops);
509 mdo->set_num_blocks(blocks);
510 }
511 }
512
513 void ciMethodData::set_would_profile(bool p) {
514 VM_ENTRY_MARK;
515 MethodData* mdo = get_MethodData();
516 if (mdo != NULL) {
517 mdo->set_would_profile(p);
518 }
519 }
520
521 void ciMethodData::set_argument_type(int bci, int i, ciKlass* k) {
522 VM_ENTRY_MARK;
523 MethodData* mdo = get_MethodData();
524 if (mdo != NULL) {
525 ProfileData* data = mdo->bci_to_data(bci);
526 if (data != NULL) {
527 if (data->is_CallTypeData()) {
528 data->as_CallTypeData()->set_argument_type(i, k->get_Klass());
529 } else {
530 assert(data->is_VirtualCallTypeData(), "no arguments!");
531 data->as_VirtualCallTypeData()->set_argument_type(i, k->get_Klass());
532 }
533 }
534 }
535 }
536
537 void ciMethodData::set_parameter_type(int i, ciKlass* k) {
538 VM_ENTRY_MARK;
539 MethodData* mdo = get_MethodData();
540 if (mdo != NULL) {
541 mdo->parameters_type_data()->set_type(i, k->get_Klass());
542 }
543 }
544
545 void ciMethodData::set_return_type(int bci, ciKlass* k) {
546 VM_ENTRY_MARK;
547 MethodData* mdo = get_MethodData();
548 if (mdo != NULL) {
549 ProfileData* data = mdo->bci_to_data(bci);
550 if (data != NULL) {
551 if (data->is_CallTypeData()) {
552 data->as_CallTypeData()->set_return_type(k->get_Klass());
553 } else {
554 assert(data->is_VirtualCallTypeData(), "no arguments!");
555 data->as_VirtualCallTypeData()->set_return_type(k->get_Klass());
556 }
557 }
558 }
559 }
560
561 bool ciMethodData::has_escape_info() {
562 return eflag_set(MethodData::estimated);
563 }
564
565 void ciMethodData::set_eflag(MethodData::EscapeFlag f) {
566 set_bits(_eflags, f);
567 }
568
569 bool ciMethodData::eflag_set(MethodData::EscapeFlag f) const {
570 return mask_bits(_eflags, f) != 0;
571 }
572
573 void ciMethodData::set_arg_local(int i) {
574 set_nth_bit(_arg_local, i);
575 }
576
577 void ciMethodData::set_arg_stack(int i) {
578 set_nth_bit(_arg_stack, i);
579 }
580
581 void ciMethodData::set_arg_returned(int i) {
582 set_nth_bit(_arg_returned, i);
583 }
584
585 void ciMethodData::set_arg_modified(int arg, uint val) {
586 ArgInfoData *aid = arg_info();
587 if (aid == NULL)
588 return;
589 assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
590 aid->set_arg_modified(arg, val);
591 }
592
593 bool ciMethodData::is_arg_local(int i) const {
594 return is_set_nth_bit(_arg_local, i);
595 }
596
597 bool ciMethodData::is_arg_stack(int i) const {
598 return is_set_nth_bit(_arg_stack, i);
599 }
600
601 bool ciMethodData::is_arg_returned(int i) const {
602 return is_set_nth_bit(_arg_returned, i);
603 }
604
605 uint ciMethodData::arg_modified(int arg) const {
606 ArgInfoData *aid = arg_info();
607 if (aid == NULL)
608 return 0;
609 assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
610 return aid->arg_modified(arg);
611 }
612
613 ByteSize ciMethodData::offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) {
614 // Get offset within MethodData* of the data array
615 ByteSize data_offset = MethodData::data_offset();
616
617 // Get cell offset of the ProfileData within data array
618 int cell_offset = dp_to_di(data->dp());
619
620 // Add in counter_offset, the # of bytes into the ProfileData of counter or flag
621 int offset = in_bytes(data_offset) + cell_offset + in_bytes(slot_offset_in_data);
622
623 return in_ByteSize(offset);
624 }
625
626 ciArgInfoData *ciMethodData::arg_info() const {
627 // Should be last, have to skip all traps.
628 DataLayout* dp = extra_data_base();
629 DataLayout* end = args_data_limit();
630 for (; dp < end; dp = MethodData::next_extra(dp)) {
631 if (dp->tag() == DataLayout::arg_info_data_tag)
632 return new ciArgInfoData(dp);
633 }
634 return NULL;
635 }
636
637
638 // Implementation of the print method.
639 void ciMethodData::print_impl(outputStream* st) {
640 ciMetadata::print_impl(st);
641 }
642
643 void ciMethodData::dump_replay_data_type_helper(outputStream* out, int round, int& count, ProfileData* pdata, ByteSize offset, ciKlass* k) {
644 if (k != NULL) {
645 if (round == 0) {
646 count++;
647 } else {
648 out->print(" %d %s", (int)(dp_to_di(pdata->dp() + in_bytes(offset)) / sizeof(intptr_t)),
649 CURRENT_ENV->replay_name(k));
650 }
651 }
652 }
653
654 template<class T> void ciMethodData::dump_replay_data_receiver_type_helper(outputStream* out, int round, int& count, T* vdata) {
655 for (uint i = 0; i < vdata->row_limit(); i++) {
656 dump_replay_data_type_helper(out, round, count, vdata, vdata->receiver_offset(i), vdata->receiver(i));
657 }
658 }
659
660 template<class T> void ciMethodData::dump_replay_data_call_type_helper(outputStream* out, int round, int& count, T* call_type_data) {
661 if (call_type_data->has_arguments()) {
662 for (int i = 0; i < call_type_data->number_of_arguments(); i++) {
663 dump_replay_data_type_helper(out, round, count, call_type_data, call_type_data->argument_type_offset(i), call_type_data->valid_argument_type(i));
664 }
665 }
666 if (call_type_data->has_return()) {
667 dump_replay_data_type_helper(out, round, count, call_type_data, call_type_data->return_type_offset(), call_type_data->valid_return_type());
668 }
669 }
670
671 void ciMethodData::dump_replay_data_extra_data_helper(outputStream* out, int round, int& count) {
672 DataLayout* dp = extra_data_base();
673 DataLayout* end = args_data_limit();
674
675 for (;dp < end; dp = MethodData::next_extra(dp)) {
676 switch(dp->tag()) {
677 case DataLayout::no_tag:
678 case DataLayout::arg_info_data_tag:
679 return;
680 case DataLayout::bit_data_tag:
681 break;
682 case DataLayout::speculative_trap_data_tag: {
683 ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
684 ciMethod* m = data->method();
685 if (m != NULL) {
686 if (round == 0) {
687 count++;
688 } else {
689 out->print(" %d ", (int)(dp_to_di(((address)dp) + in_bytes(ciSpeculativeTrapData::method_offset())) / sizeof(intptr_t)));
690 m->dump_name_as_ascii(out);
691 }
692 }
693 break;
694 }
695 default:
696 fatal("bad tag = %d", dp->tag());
697 }
698 }
699 }
700
701 void ciMethodData::dump_replay_data(outputStream* out) {
702 ResourceMark rm;
703 MethodData* mdo = get_MethodData();
704 Method* method = mdo->method();
705 out->print("ciMethodData ");
706 ciMethod::dump_name_as_ascii(out, method);
707 out->print(" %d %d", _state, _invocation_counter);
708
709 // dump the contents of the MDO header as raw data
710 unsigned char* orig = (unsigned char*)&_orig;
711 int length = sizeof(_orig);
712 out->print(" orig %d", length);
713 for (int i = 0; i < length; i++) {
714 out->print(" %d", orig[i]);
715 }
716
717 // dump the MDO data as raw data
718 int elements = (data_size() + extra_data_size()) / sizeof(intptr_t);
719 out->print(" data %d", elements);
720 for (int i = 0; i < elements; i++) {
721 // We could use INTPTR_FORMAT here but that's zero justified
722 // which makes comparing it with the SA version of this output
723 // harder. data()'s element type is intptr_t.
724 out->print(" " INTPTRNZ_FORMAT, data()[i]);
725 }
726
727 // The MDO contained oop references as ciObjects, so scan for those
728 // and emit pairs of offset and klass name so that they can be
729 // reconstructed at runtime. The first round counts the number of
730 // oop references and the second actually emits them.
731 ciParametersTypeData* parameters = parameters_type_data();
732 for (int count = 0, round = 0; round < 2; round++) {
733 if (round == 1) out->print(" oops %d", count);
734 ProfileData* pdata = first_data();
735 for ( ; is_valid(pdata); pdata = next_data(pdata)) {
736 if (pdata->is_VirtualCallData()) {
737 ciVirtualCallData* vdata = (ciVirtualCallData*)pdata;
738 dump_replay_data_receiver_type_helper<ciVirtualCallData>(out, round, count, vdata);
739 if (pdata->is_VirtualCallTypeData()) {
740 ciVirtualCallTypeData* call_type_data = (ciVirtualCallTypeData*)pdata;
741 dump_replay_data_call_type_helper<ciVirtualCallTypeData>(out, round, count, call_type_data);
742 }
743 } else if (pdata->is_ReceiverTypeData()) {
744 ciReceiverTypeData* vdata = (ciReceiverTypeData*)pdata;
745 dump_replay_data_receiver_type_helper<ciReceiverTypeData>(out, round, count, vdata);
746 } else if (pdata->is_CallTypeData()) {
747 ciCallTypeData* call_type_data = (ciCallTypeData*)pdata;
748 dump_replay_data_call_type_helper<ciCallTypeData>(out, round, count, call_type_data);
749 } else if (pdata->is_ArrayLoadStoreData()) {
750 ciArrayLoadStoreData* array_load_store_data = (ciArrayLoadStoreData*)pdata;
751 dump_replay_data_type_helper(out, round, count, array_load_store_data, ciArrayLoadStoreData::array_offset(),
752 array_load_store_data->array()->valid_type());
753 dump_replay_data_type_helper(out, round, count, array_load_store_data, ciArrayLoadStoreData::element_offset(),
754 array_load_store_data->element()->valid_type());
755 } else if (pdata->is_ACmpData()) {
756 ciACmpData* acmp_data = (ciACmpData*)pdata;
757 dump_replay_data_type_helper(out, round, count, acmp_data, ciACmpData::left_offset(),
758 acmp_data->left()->valid_type());
759 dump_replay_data_type_helper(out, round, count, acmp_data, ciACmpData::right_offset(),
760 acmp_data->right()->valid_type());
761
762 }
763 }
764 if (parameters != NULL) {
765 for (int i = 0; i < parameters->number_of_parameters(); i++) {
766 dump_replay_data_type_helper(out, round, count, parameters, ParametersTypeData::type_offset(i), parameters->valid_parameter_type(i));
767 }
768 }
769 }
770 for (int count = 0, round = 0; round < 2; round++) {
771 if (round == 1) out->print(" methods %d", count);
772 dump_replay_data_extra_data_helper(out, round, count);
773 }
774 out->cr();
775 }
776
777 #ifndef PRODUCT
778 void ciMethodData::print() {
779 print_data_on(tty);
780 }
781
782 void ciMethodData::print_data_on(outputStream* st) {
783 ResourceMark rm;
784 ciParametersTypeData* parameters = parameters_type_data();
785 if (parameters != NULL) {
786 parameters->print_data_on(st);
787 }
788 ciProfileData* data;
789 for (data = first_data(); is_valid(data); data = next_data(data)) {
790 st->print("%d", dp_to_di(data->dp()));
791 st->fill_to(6);
792 data->print_data_on(st);
793 }
794 st->print_cr("--- Extra data:");
795 DataLayout* dp = extra_data_base();
796 DataLayout* end = args_data_limit();
797 for (;; dp = MethodData::next_extra(dp)) {
798 assert(dp < end, "moved past end of extra data");
799 switch (dp->tag()) {
800 case DataLayout::no_tag:
801 continue;
802 case DataLayout::bit_data_tag:
803 data = new BitData(dp);
804 break;
805 case DataLayout::arg_info_data_tag:
806 data = new ciArgInfoData(dp);
807 dp = end; // ArgInfoData is after the trap data right before the parameter data.
808 break;
809 case DataLayout::speculative_trap_data_tag:
810 data = new ciSpeculativeTrapData(dp);
811 break;
812 default:
813 fatal("unexpected tag %d", dp->tag());
814 }
815 st->print("%d", dp_to_di(data->dp()));
816 st->fill_to(6);
817 data->print_data_on(st);
818 if (dp >= end) return;
819 }
820 }
821
822 void ciTypeEntries::print_ciklass(outputStream* st, intptr_t k) {
823 if (TypeEntries::is_type_none(k)) {
824 st->print("none");
825 } else if (TypeEntries::is_type_unknown(k)) {
826 st->print("unknown");
827 } else {
828 valid_ciklass(k)->print_name_on(st);
829 }
830 if (TypeEntries::was_null_seen(k)) {
831 st->print(" (null seen)");
832 }
833 }
834
835 void ciTypeStackSlotEntries::print_data_on(outputStream* st) const {
836 for (int i = 0; i < number_of_entries(); i++) {
837 _pd->tab(st);
838 st->print("%d: stack (%u) ", i, stack_slot(i));
839 print_ciklass(st, type(i));
840 st->cr();
841 }
842 }
843
844 void ciSingleTypeEntry::print_data_on(outputStream* st) const {
845 _pd->tab(st);
846 st->print("ret ");
847 print_ciklass(st, type());
848 st->cr();
849 }
850
851 void ciCallTypeData::print_data_on(outputStream* st, const char* extra) const {
852 print_shared(st, "ciCallTypeData", extra);
853 if (has_arguments()) {
854 tab(st, true);
855 st->print_cr("argument types");
856 args()->print_data_on(st);
857 }
858 if (has_return()) {
859 tab(st, true);
860 st->print_cr("return type");
861 ret()->print_data_on(st);
862 }
863 }
864
865 void ciReceiverTypeData::print_receiver_data_on(outputStream* st) const {
866 uint row;
867 int entries = 0;
868 for (row = 0; row < row_limit(); row++) {
869 if (receiver(row) != NULL) entries++;
870 }
871 st->print_cr("count(%u) entries(%u)", count(), entries);
872 for (row = 0; row < row_limit(); row++) {
873 if (receiver(row) != NULL) {
874 tab(st);
875 receiver(row)->print_name_on(st);
876 st->print_cr("(%u)", receiver_count(row));
877 }
878 }
879 }
880
881 void ciReceiverTypeData::print_data_on(outputStream* st, const char* extra) const {
882 print_shared(st, "ciReceiverTypeData", extra);
883 print_receiver_data_on(st);
884 }
885
886 void ciVirtualCallData::print_data_on(outputStream* st, const char* extra) const {
887 print_shared(st, "ciVirtualCallData", extra);
888 rtd_super()->print_receiver_data_on(st);
889 }
890
891 void ciVirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const {
892 print_shared(st, "ciVirtualCallTypeData", extra);
893 rtd_super()->print_receiver_data_on(st);
894 if (has_arguments()) {
895 tab(st, true);
896 st->print("argument types");
897 args()->print_data_on(st);
898 }
899 if (has_return()) {
900 tab(st, true);
901 st->print("return type");
902 ret()->print_data_on(st);
903 }
904 }
905
906 void ciParametersTypeData::print_data_on(outputStream* st, const char* extra) const {
907 st->print_cr("ciParametersTypeData");
908 parameters()->print_data_on(st);
909 }
910
911 void ciSpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const {
912 st->print_cr("ciSpeculativeTrapData");
913 tab(st);
914 method()->print_short_name(st);
915 st->cr();
916 }
917
918 void ciArrayLoadStoreData::print_data_on(outputStream* st, const char* extra) const {
919 print_shared(st, "ciArrayLoadStoreData", extra);
920 tab(st, true);
921 st->print("array");
922 array()->print_data_on(st);
923 tab(st, true);
924 st->print("element");
925 element()->print_data_on(st);
926 }
927
928 void ciACmpData::print_data_on(outputStream* st, const char* extra) const {
929 BranchData::print_data_on(st, extra);
930 st->cr();
931 tab(st, true);
932 st->print("left");
933 left()->print_data_on(st);
934 tab(st, true);
935 st->print("right");
936 right()->print_data_on(st);
937 }
938 #endif