1 /*
  2  * Copyright (c) 2001, 2017, 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 "memory/allocation.inline.hpp"
 31 #include "memory/resourceArea.hpp"
 32 #include "runtime/deoptimization.hpp"
 33 #include "utilities/copy.hpp"
 34 
 35 // ciMethodData
 36 
 37 // ------------------------------------------------------------------
 38 // ciMethodData::ciMethodData
 39 //
 40 ciMethodData::ciMethodData(MethodData* md) : ciMetadata(md) {
 41   assert(md != NULL, "no null method data");
 42   Copy::zero_to_words((HeapWord*) &_orig, sizeof(_orig) / sizeof(HeapWord));
 43   _data = NULL;
 44   _data_size = 0;
 45   _extra_data_size = 0;
 46   _current_mileage = 0;
 47   _invocation_counter = 0;
 48   _backedge_counter = 0;
 49   _state = empty_state;
 50   _saw_free_extra_data = false;
 51   // Set an initial hint. Don't use set_hint_di() because
 52   // first_di() may be out of bounds if data_size is 0.
 53   _hint_di = first_di();
 54   // Initialize the escape information (to "don't know.");
 55   _eflags = _arg_local = _arg_stack = _arg_returned = 0;
 56   _parameters = NULL;
 57 }
 58 
 59 // ------------------------------------------------------------------
 60 // ciMethodData::ciMethodData
 61 //
 62 // No MethodData*.
 63 ciMethodData::ciMethodData() : ciMetadata(NULL) {
 64   Copy::zero_to_words((HeapWord*) &_orig, sizeof(_orig) / sizeof(HeapWord));
 65   _data = NULL;
 66   _data_size = 0;
 67   _extra_data_size = 0;
 68   _current_mileage = 0;
 69   _invocation_counter = 0;
 70   _backedge_counter = 0;
 71   _state = empty_state;
 72   _saw_free_extra_data = false;
 73   // Set an initial hint. Don't use set_hint_di() because
 74   // first_di() may be out of bounds if data_size is 0.
 75   _hint_di = first_di();
 76   // Initialize the escape information (to "don't know.");
 77   _eflags = _arg_local = _arg_stack = _arg_returned = 0;
 78   _parameters = NULL;
 79 }
 80 
 81 void ciMethodData::load_extra_data() {
 82   MethodData* mdo = get_MethodData();
 83 
 84   MutexLocker ml(mdo->extra_data_lock());
 85 
 86   // speculative trap entries also hold a pointer to a Method so need to be translated
 87   DataLayout* dp_src  = mdo->extra_data_base();
 88   DataLayout* end_src = mdo->args_data_limit();
 89   DataLayout* dp_dst  = extra_data_base();
 90   for (;; dp_src = MethodData::next_extra(dp_src), dp_dst = MethodData::next_extra(dp_dst)) {
 91     assert(dp_src < end_src, "moved past end of extra data");
 92     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");
 93 
 94     // New traps in the MDO may have been added since we copied the
 95     // data (concurrent deoptimizations before we acquired
 96     // extra_data_lock above) or can be removed (a safepoint may occur
 97     // in the translate_from call below) as we translate the copy:
 98     // update the copy as we go.
 99     int tag = dp_src->tag();
100     if (tag != DataLayout::arg_info_data_tag) {
101       memcpy(dp_dst, dp_src, ((intptr_t)MethodData::next_extra(dp_src)) - ((intptr_t)dp_src));
102     }
103 
104     switch(tag) {
105     case DataLayout::speculative_trap_data_tag: {
106       ciSpeculativeTrapData data_dst(dp_dst);
107       SpeculativeTrapData   data_src(dp_src);
108 
109       { // During translation a safepoint can happen or VM lock can be taken (e.g., Compile_lock).
110         MutexUnlocker ml(mdo->extra_data_lock());
111         data_dst.translate_from(&data_src);
112       }
113       break;
114     }
115     case DataLayout::bit_data_tag:
116       break;
117     case DataLayout::no_tag:
118     case DataLayout::arg_info_data_tag:
119       // An empty slot or ArgInfoData entry marks the end of the trap data
120       {
121         return; // Need a block to avoid SS compiler bug
122       }
123     default:
124       fatal("bad tag = %d", tag);
125     }
126   }
127 }
128 
129 void ciMethodData::load_data() {
130   MethodData* mdo = get_MethodData();
131   if (mdo == NULL) {
132     return;
133   }
134 
135   // To do: don't copy the data if it is not "ripe" -- require a minimum #
136   // of invocations.
137 
138   // Snapshot the data -- actually, take an approximate snapshot of
139   // the data.  Any concurrently executing threads may be changing the
140   // data as we copy it.
141   Copy::disjoint_words((HeapWord*) mdo,
142                        (HeapWord*) &_orig,
143                        sizeof(_orig) / HeapWordSize);
144   Arena* arena = CURRENT_ENV->arena();
145   _data_size = mdo->data_size();
146   _extra_data_size = mdo->extra_data_size();
147   int total_size = _data_size + _extra_data_size;
148   _data = (intptr_t *) arena->Amalloc(total_size);
149   Copy::disjoint_words((HeapWord*) mdo->data_base(), (HeapWord*) _data, total_size / HeapWordSize);
150 
151   // Traverse the profile data, translating any oops into their
152   // ci equivalents.
153   ResourceMark rm;
154   ciProfileData* ci_data = first_data();
155   ProfileData* data = mdo->first_data();
156   while (is_valid(ci_data)) {
157     ci_data->translate_from(data);
158     ci_data = next_data(ci_data);
159     data = mdo->next_data(data);
160   }
161   if (mdo->parameters_type_data() != NULL) {
162     _parameters = data_layout_at(mdo->parameters_type_data_di());
163     ciParametersTypeData* parameters = new ciParametersTypeData(_parameters);
164     parameters->translate_from(mdo->parameters_type_data());
165   }
166 
167   load_extra_data();
168 
169   // Note:  Extra data are all BitData, and do not need translation.
170   _current_mileage = MethodData::mileage_of(mdo->method());
171   _invocation_counter = mdo->invocation_count();
172   _backedge_counter = mdo->backedge_count();
173   _state = mdo->is_mature()? mature_state: immature_state;
174 
175   _eflags = mdo->eflags();
176   _arg_local = mdo->arg_local();
177   _arg_stack = mdo->arg_stack();
178   _arg_returned  = mdo->arg_returned();
179 #ifndef PRODUCT
180   if (ReplayCompiles) {
181     ciReplay::initialize(this);
182   }
183 #endif
184 }
185 
186 void ciReceiverTypeData::translate_receiver_data_from(const ProfileData* data) {
187   for (uint row = 0; row < row_limit(); row++) {
188     Klass* k = data->as_ReceiverTypeData()->receiver(row);
189     if (k != NULL) {
190       ciKlass* klass = CURRENT_ENV->get_klass(k);
191       set_receiver(row, klass);
192     }
193   }
194 }
195 
196 
197 void ciTypeStackSlotEntries::translate_type_data_from(const TypeStackSlotEntries* entries) {
198   for (int i = 0; i < number_of_entries(); i++) {
199     intptr_t k = entries->type(i);
200     TypeStackSlotEntries::set_type(i, translate_klass(k));
201   }
202 }
203 
204 void ciReturnTypeEntry::translate_type_data_from(const ReturnTypeEntry* ret) {
205   intptr_t k = ret->type();
206   set_type(translate_klass(k));
207 }
208 
209 void ciSpeculativeTrapData::translate_from(const ProfileData* data) {
210   Method* m = data->as_SpeculativeTrapData()->method();
211   ciMethod* ci_m = CURRENT_ENV->get_method(m);
212   set_method(ci_m);
213 }
214 
215 // Get the data at an arbitrary (sort of) data index.
216 ciProfileData* ciMethodData::data_at(int data_index) {
217   if (out_of_bounds(data_index)) {
218     return NULL;
219   }
220   DataLayout* data_layout = data_layout_at(data_index);
221 
222   switch (data_layout->tag()) {
223   case DataLayout::no_tag:
224   default:
225     ShouldNotReachHere();
226     return NULL;
227   case DataLayout::bit_data_tag:
228     return new ciBitData(data_layout);
229   case DataLayout::counter_data_tag:
230     return new ciCounterData(data_layout);
231   case DataLayout::jump_data_tag:
232     return new ciJumpData(data_layout);
233   case DataLayout::receiver_type_data_tag:
234     return new ciReceiverTypeData(data_layout);
235   case DataLayout::virtual_call_data_tag:
236     return new ciVirtualCallData(data_layout);
237   case DataLayout::ret_data_tag:
238     return new ciRetData(data_layout);
239   case DataLayout::branch_data_tag:
240     return new ciBranchData(data_layout);
241   case DataLayout::multi_branch_data_tag:
242     return new ciMultiBranchData(data_layout);
243   case DataLayout::arg_info_data_tag:
244     return new ciArgInfoData(data_layout);
245   case DataLayout::call_type_data_tag:
246     return new ciCallTypeData(data_layout);
247   case DataLayout::virtual_call_type_data_tag:
248     return new ciVirtualCallTypeData(data_layout);
249   case DataLayout::parameters_type_data_tag:
250     return new ciParametersTypeData(data_layout);
251   };
252 }
253 
254 // Iteration over data.
255 ciProfileData* ciMethodData::next_data(ciProfileData* current) {
256   int current_index = dp_to_di(current->dp());
257   int next_index = current_index + current->size_in_bytes();
258   ciProfileData* next = data_at(next_index);
259   return next;
260 }
261 
262 ciProfileData* ciMethodData::bci_to_extra_data(int bci, ciMethod* m, bool& two_free_slots) {
263   DataLayout* dp  = extra_data_base();
264   DataLayout* end = args_data_limit();
265   two_free_slots = false;
266   for (;dp < end; dp = MethodData::next_extra(dp)) {
267     switch(dp->tag()) {
268     case DataLayout::no_tag:
269       _saw_free_extra_data = true;  // observed an empty slot (common case)
270       two_free_slots = (MethodData::next_extra(dp)->tag() == DataLayout::no_tag);
271       return NULL;
272     case DataLayout::arg_info_data_tag:
273       return NULL; // ArgInfoData is at the end of extra data section.
274     case DataLayout::bit_data_tag:
275       if (m == NULL && dp->bci() == bci) {
276         return new ciBitData(dp);
277       }
278       break;
279     case DataLayout::speculative_trap_data_tag: {
280       ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
281       // data->method() might be null if the MDO is snapshotted
282       // concurrently with a trap
283       if (m != NULL && data->method() == m && dp->bci() == bci) {
284         return data;
285       }
286       break;
287     }
288     default:
289       fatal("bad tag = %d", dp->tag());
290     }
291   }
292   return NULL;
293 }
294 
295 // Translate a bci to its corresponding data, or NULL.
296 ciProfileData* ciMethodData::bci_to_data(int bci, ciMethod* m) {
297   // If m is not NULL we look for a SpeculativeTrapData entry
298   if (m == NULL) {
299     ciProfileData* data = data_before(bci);
300     for ( ; is_valid(data); data = next_data(data)) {
301       if (data->bci() == bci) {
302         set_hint_di(dp_to_di(data->dp()));
303         return data;
304       } else if (data->bci() > bci) {
305         break;
306       }
307     }
308   }
309   bool two_free_slots = false;
310   ciProfileData* result = bci_to_extra_data(bci, m, two_free_slots);
311   if (result != NULL) {
312     return result;
313   }
314   if (m != NULL && !two_free_slots) {
315     // We were looking for a SpeculativeTrapData entry we didn't
316     // find. Room is not available for more SpeculativeTrapData
317     // entries, look in the non SpeculativeTrapData entries.
318     return bci_to_data(bci, NULL);
319   }
320   return NULL;
321 }
322 
323 // Conservatively decode the trap_state of a ciProfileData.
324 int ciMethodData::has_trap_at(ciProfileData* data, int reason) {
325   typedef Deoptimization::DeoptReason DR_t;
326   int per_bc_reason
327     = Deoptimization::reason_recorded_per_bytecode_if_any((DR_t) reason);
328   if (trap_count(reason) == 0) {
329     // Impossible for this trap to have occurred, regardless of trap_state.
330     // Note:  This happens if the MDO is empty.
331     return 0;
332   } else if (per_bc_reason == Deoptimization::Reason_none) {
333     // We cannot conclude anything; a trap happened somewhere, maybe here.
334     return -1;
335   } else if (data == NULL) {
336     // No profile here, not even an extra_data record allocated on the fly.
337     // If there are empty extra_data records, and there had been a trap,
338     // there would have been a non-null data pointer.  If there are no
339     // free extra_data records, we must return a conservative -1.
340     if (_saw_free_extra_data)
341       return 0;                 // Q.E.D.
342     else
343       return -1;                // bail with a conservative answer
344   } else {
345     return Deoptimization::trap_state_has_reason(data->trap_state(), per_bc_reason);
346   }
347 }
348 
349 int ciMethodData::trap_recompiled_at(ciProfileData* data) {
350   if (data == NULL) {
351     return (_saw_free_extra_data? 0: -1);  // (see previous method)
352   } else {
353     return Deoptimization::trap_state_is_recompiled(data->trap_state())? 1: 0;
354   }
355 }
356 
357 void ciMethodData::clear_escape_info() {
358   VM_ENTRY_MARK;
359   MethodData* mdo = get_MethodData();
360   if (mdo != NULL) {
361     mdo->clear_escape_info();
362     ArgInfoData *aid = arg_info();
363     int arg_count = (aid == NULL) ? 0 : aid->number_of_args();
364     for (int i = 0; i < arg_count; i++) {
365       set_arg_modified(i, 0);
366     }
367   }
368   _eflags = _arg_local = _arg_stack = _arg_returned = 0;
369 }
370 
371 // copy our escape info to the MethodData* if it exists
372 void ciMethodData::update_escape_info() {
373   VM_ENTRY_MARK;
374   MethodData* mdo = get_MethodData();
375   if ( mdo != NULL) {
376     mdo->set_eflags(_eflags);
377     mdo->set_arg_local(_arg_local);
378     mdo->set_arg_stack(_arg_stack);
379     mdo->set_arg_returned(_arg_returned);
380     int arg_count = mdo->method()->size_of_parameters();
381     for (int i = 0; i < arg_count; i++) {
382       mdo->set_arg_modified(i, arg_modified(i));
383     }
384   }
385 }
386 
387 void ciMethodData::set_compilation_stats(short loops, short blocks) {
388   VM_ENTRY_MARK;
389   MethodData* mdo = get_MethodData();
390   if (mdo != NULL) {
391     mdo->set_num_loops(loops);
392     mdo->set_num_blocks(blocks);
393   }
394 }
395 
396 void ciMethodData::set_would_profile(bool p) {
397   VM_ENTRY_MARK;
398   MethodData* mdo = get_MethodData();
399   if (mdo != NULL) {
400     mdo->set_would_profile(p);
401   }
402 }
403 
404 void ciMethodData::set_argument_type(int bci, int i, ciKlass* k) {
405   VM_ENTRY_MARK;
406   MethodData* mdo = get_MethodData();
407   if (mdo != NULL) {
408     ProfileData* data = mdo->bci_to_data(bci);
409     if (data != NULL) {
410       if (data->is_CallTypeData()) {
411         data->as_CallTypeData()->set_argument_type(i, k->get_Klass());
412       } else {
413         assert(data->is_VirtualCallTypeData(), "no arguments!");
414         data->as_VirtualCallTypeData()->set_argument_type(i, k->get_Klass());
415       }
416     }
417   }
418 }
419 
420 void ciMethodData::set_parameter_type(int i, ciKlass* k) {
421   VM_ENTRY_MARK;
422   MethodData* mdo = get_MethodData();
423   if (mdo != NULL) {
424     mdo->parameters_type_data()->set_type(i, k->get_Klass());
425   }
426 }
427 
428 void ciMethodData::set_return_type(int bci, ciKlass* k) {
429   VM_ENTRY_MARK;
430   MethodData* mdo = get_MethodData();
431   if (mdo != NULL) {
432     ProfileData* data = mdo->bci_to_data(bci);
433     if (data != NULL) {
434       if (data->is_CallTypeData()) {
435         data->as_CallTypeData()->set_return_type(k->get_Klass());
436       } else {
437         assert(data->is_VirtualCallTypeData(), "no arguments!");
438         data->as_VirtualCallTypeData()->set_return_type(k->get_Klass());
439       }
440     }
441   }
442 }
443 
444 bool ciMethodData::has_escape_info() {
445   return eflag_set(MethodData::estimated);
446 }
447 
448 void ciMethodData::set_eflag(MethodData::EscapeFlag f) {
449   set_bits(_eflags, f);
450 }
451 
452 void ciMethodData::clear_eflag(MethodData::EscapeFlag f) {
453   clear_bits(_eflags, f);
454 }
455 
456 bool ciMethodData::eflag_set(MethodData::EscapeFlag f) const {
457   return mask_bits(_eflags, f) != 0;
458 }
459 
460 void ciMethodData::set_arg_local(int i) {
461   set_nth_bit(_arg_local, i);
462 }
463 
464 void ciMethodData::set_arg_stack(int i) {
465   set_nth_bit(_arg_stack, i);
466 }
467 
468 void ciMethodData::set_arg_returned(int i) {
469   set_nth_bit(_arg_returned, i);
470 }
471 
472 void ciMethodData::set_arg_modified(int arg, uint val) {
473   ArgInfoData *aid = arg_info();
474   if (aid == NULL)
475     return;
476   assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
477   aid->set_arg_modified(arg, val);
478 }
479 
480 bool ciMethodData::is_arg_local(int i) const {
481   return is_set_nth_bit(_arg_local, i);
482 }
483 
484 bool ciMethodData::is_arg_stack(int i) const {
485   return is_set_nth_bit(_arg_stack, i);
486 }
487 
488 bool ciMethodData::is_arg_returned(int i) const {
489   return is_set_nth_bit(_arg_returned, i);
490 }
491 
492 uint ciMethodData::arg_modified(int arg) const {
493   ArgInfoData *aid = arg_info();
494   if (aid == NULL)
495     return 0;
496   assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
497   return aid->arg_modified(arg);
498 }
499 
500 ByteSize ciMethodData::offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) {
501   // Get offset within MethodData* of the data array
502   ByteSize data_offset = MethodData::data_offset();
503 
504   // Get cell offset of the ProfileData within data array
505   int cell_offset = dp_to_di(data->dp());
506 
507   // Add in counter_offset, the # of bytes into the ProfileData of counter or flag
508   int offset = in_bytes(data_offset) + cell_offset + in_bytes(slot_offset_in_data);
509 
510   return in_ByteSize(offset);
511 }
512 
513 ciArgInfoData *ciMethodData::arg_info() const {
514   // Should be last, have to skip all traps.
515   DataLayout* dp  = extra_data_base();
516   DataLayout* end = args_data_limit();
517   for (; dp < end; dp = MethodData::next_extra(dp)) {
518     if (dp->tag() == DataLayout::arg_info_data_tag)
519       return new ciArgInfoData(dp);
520   }
521   return NULL;
522 }
523 
524 
525 // Implementation of the print method.
526 void ciMethodData::print_impl(outputStream* st) {
527   ciMetadata::print_impl(st);
528 }
529 
530 void ciMethodData::dump_replay_data_type_helper(outputStream* out, int round, int& count, ProfileData* pdata, ByteSize offset, ciKlass* k) {
531   if (k != NULL) {
532     if (round == 0) {
533       count++;
534     } else {
535       out->print(" %d %s", (int)(dp_to_di(pdata->dp() + in_bytes(offset)) / sizeof(intptr_t)), k->name()->as_quoted_ascii());
536     }
537   }
538 }
539 
540 template<class T> void ciMethodData::dump_replay_data_receiver_type_helper(outputStream* out, int round, int& count, T* vdata) {
541   for (uint i = 0; i < vdata->row_limit(); i++) {
542     dump_replay_data_type_helper(out, round, count, vdata, vdata->receiver_offset(i), vdata->receiver(i));
543   }
544 }
545 
546 template<class T> void ciMethodData::dump_replay_data_call_type_helper(outputStream* out, int round, int& count, T* call_type_data) {
547   if (call_type_data->has_arguments()) {
548     for (int i = 0; i < call_type_data->number_of_arguments(); i++) {
549       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));
550     }
551   }
552   if (call_type_data->has_return()) {
553     dump_replay_data_type_helper(out, round, count, call_type_data, call_type_data->return_type_offset(), call_type_data->valid_return_type());
554   }
555 }
556 
557 void ciMethodData::dump_replay_data_extra_data_helper(outputStream* out, int round, int& count) {
558   DataLayout* dp  = extra_data_base();
559   DataLayout* end = args_data_limit();
560 
561   for (;dp < end; dp = MethodData::next_extra(dp)) {
562     switch(dp->tag()) {
563     case DataLayout::no_tag:
564     case DataLayout::arg_info_data_tag:
565       return;
566     case DataLayout::bit_data_tag:
567       break;
568     case DataLayout::speculative_trap_data_tag: {
569       ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
570       ciMethod* m = data->method();
571       if (m != NULL) {
572         if (round == 0) {
573           count++;
574         } else {
575           out->print(" %d ", (int)(dp_to_di(((address)dp) + in_bytes(ciSpeculativeTrapData::method_offset())) / sizeof(intptr_t)));
576           m->dump_name_as_ascii(out);
577         }
578       }
579       break;
580     }
581     default:
582       fatal("bad tag = %d", dp->tag());
583     }
584   }
585 }
586 
587 void ciMethodData::dump_replay_data(outputStream* out) {
588   ResourceMark rm;
589   MethodData* mdo = get_MethodData();
590   Method* method = mdo->method();
591   Klass* holder = method->method_holder();
592   out->print("ciMethodData %s %s %s %d %d",
593              holder->name()->as_quoted_ascii(),
594              method->name()->as_quoted_ascii(),
595              method->signature()->as_quoted_ascii(),
596              _state,
597              current_mileage());
598 
599   // dump the contents of the MDO header as raw data
600   unsigned char* orig = (unsigned char*)&_orig;
601   int length = sizeof(_orig);
602   out->print(" orig %d", length);
603   for (int i = 0; i < length; i++) {
604     out->print(" %d", orig[i]);
605   }
606 
607   // dump the MDO data as raw data
608   int elements = (data_size() + extra_data_size()) / sizeof(intptr_t);
609   out->print(" data %d", elements);
610   for (int i = 0; i < elements; i++) {
611     // We could use INTPTR_FORMAT here but that's zero justified
612     // which makes comparing it with the SA version of this output
613     // harder. data()'s element type is intptr_t.
614     out->print(" " INTPTRNZ_FORMAT, data()[i]);
615   }
616 
617   // The MDO contained oop references as ciObjects, so scan for those
618   // and emit pairs of offset and klass name so that they can be
619   // reconstructed at runtime.  The first round counts the number of
620   // oop references and the second actually emits them.
621   ciParametersTypeData* parameters = parameters_type_data();
622   for (int count = 0, round = 0; round < 2; round++) {
623     if (round == 1) out->print(" oops %d", count);
624     ProfileData* pdata = first_data();
625     for ( ; is_valid(pdata); pdata = next_data(pdata)) {
626       if (pdata->is_VirtualCallData()) {
627         ciVirtualCallData* vdata = (ciVirtualCallData*)pdata;
628         dump_replay_data_receiver_type_helper<ciVirtualCallData>(out, round, count, vdata);
629         if (pdata->is_VirtualCallTypeData()) {
630           ciVirtualCallTypeData* call_type_data = (ciVirtualCallTypeData*)pdata;
631           dump_replay_data_call_type_helper<ciVirtualCallTypeData>(out, round, count, call_type_data);
632         }
633       } else if (pdata->is_ReceiverTypeData()) {
634         ciReceiverTypeData* vdata = (ciReceiverTypeData*)pdata;
635         dump_replay_data_receiver_type_helper<ciReceiverTypeData>(out, round, count, vdata);
636       } else if (pdata->is_CallTypeData()) {
637           ciCallTypeData* call_type_data = (ciCallTypeData*)pdata;
638           dump_replay_data_call_type_helper<ciCallTypeData>(out, round, count, call_type_data);
639       }
640     }
641     if (parameters != NULL) {
642       for (int i = 0; i < parameters->number_of_parameters(); i++) {
643         dump_replay_data_type_helper(out, round, count, parameters, ParametersTypeData::type_offset(i), parameters->valid_parameter_type(i));
644       }
645     }
646   }
647   for (int count = 0, round = 0; round < 2; round++) {
648     if (round == 1) out->print(" methods %d", count);
649     dump_replay_data_extra_data_helper(out, round, count);
650   }
651   out->cr();
652 }
653 
654 #ifndef PRODUCT
655 void ciMethodData::print() {
656   print_data_on(tty);
657 }
658 
659 void ciMethodData::print_data_on(outputStream* st) {
660   ResourceMark rm;
661   ciParametersTypeData* parameters = parameters_type_data();
662   if (parameters != NULL) {
663     parameters->print_data_on(st);
664   }
665   ciProfileData* data;
666   for (data = first_data(); is_valid(data); data = next_data(data)) {
667     st->print("%d", dp_to_di(data->dp()));
668     st->fill_to(6);
669     data->print_data_on(st);
670   }
671   st->print_cr("--- Extra data:");
672   DataLayout* dp  = extra_data_base();
673   DataLayout* end = args_data_limit();
674   for (;; dp = MethodData::next_extra(dp)) {
675     assert(dp < end, "moved past end of extra data");
676     switch (dp->tag()) {
677     case DataLayout::no_tag:
678       continue;
679     case DataLayout::bit_data_tag:
680       data = new BitData(dp);
681       break;
682     case DataLayout::arg_info_data_tag:
683       data = new ciArgInfoData(dp);
684       dp = end; // ArgInfoData is at the end of extra data section.
685       break;
686     case DataLayout::speculative_trap_data_tag:
687       data = new ciSpeculativeTrapData(dp);
688       break;
689     default:
690       fatal("unexpected tag %d", dp->tag());
691     }
692     st->print("%d", dp_to_di(data->dp()));
693     st->fill_to(6);
694     data->print_data_on(st);
695     if (dp >= end) return;
696   }
697 }
698 
699 void ciTypeEntries::print_ciklass(outputStream* st, intptr_t k) {
700   if (TypeEntries::is_type_none(k)) {
701     st->print("none");
702   } else if (TypeEntries::is_type_unknown(k)) {
703     st->print("unknown");
704   } else {
705     valid_ciklass(k)->print_name_on(st);
706   }
707   if (TypeEntries::was_null_seen(k)) {
708     st->print(" (null seen)");
709   }
710 }
711 
712 void ciTypeStackSlotEntries::print_data_on(outputStream* st) const {
713   for (int i = 0; i < number_of_entries(); i++) {
714     _pd->tab(st);
715     st->print("%d: stack (%u) ", i, stack_slot(i));
716     print_ciklass(st, type(i));
717     st->cr();
718   }
719 }
720 
721 void ciReturnTypeEntry::print_data_on(outputStream* st) const {
722   _pd->tab(st);
723   st->print("ret ");
724   print_ciklass(st, type());
725   st->cr();
726 }
727 
728 void ciCallTypeData::print_data_on(outputStream* st, const char* extra) const {
729   print_shared(st, "ciCallTypeData", extra);
730   if (has_arguments()) {
731     tab(st, true);
732     st->print_cr("argument types");
733     args()->print_data_on(st);
734   }
735   if (has_return()) {
736     tab(st, true);
737     st->print_cr("return type");
738     ret()->print_data_on(st);
739   }
740 }
741 
742 void ciReceiverTypeData::print_receiver_data_on(outputStream* st) const {
743   uint row;
744   int entries = 0;
745   for (row = 0; row < row_limit(); row++) {
746     if (receiver(row) != NULL)  entries++;
747   }
748   st->print_cr("count(%u) entries(%u)", count(), entries);
749   for (row = 0; row < row_limit(); row++) {
750     if (receiver(row) != NULL) {
751       tab(st);
752       receiver(row)->print_name_on(st);
753       st->print_cr("(%u)", receiver_count(row));
754     }
755   }
756 }
757 
758 void ciReceiverTypeData::print_data_on(outputStream* st, const char* extra) const {
759   print_shared(st, "ciReceiverTypeData", extra);
760   print_receiver_data_on(st);
761 }
762 
763 void ciVirtualCallData::print_data_on(outputStream* st, const char* extra) const {
764   print_shared(st, "ciVirtualCallData", extra);
765   rtd_super()->print_receiver_data_on(st);
766 }
767 
768 void ciVirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const {
769   print_shared(st, "ciVirtualCallTypeData", extra);
770   rtd_super()->print_receiver_data_on(st);
771   if (has_arguments()) {
772     tab(st, true);
773     st->print("argument types");
774     args()->print_data_on(st);
775   }
776   if (has_return()) {
777     tab(st, true);
778     st->print("return type");
779     ret()->print_data_on(st);
780   }
781 }
782 
783 void ciParametersTypeData::print_data_on(outputStream* st, const char* extra) const {
784   st->print_cr("ciParametersTypeData");
785   parameters()->print_data_on(st);
786 }
787 
788 void ciSpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const {
789   st->print_cr("ciSpeculativeTrapData");
790   tab(st);
791   method()->print_short_name(st);
792   st->cr();
793 }
794 #endif