1 /*
   2  * Copyright (c) 2001, 2014, 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.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     ciKlass* klass = CURRENT_ENV->get_klass(k);
 190     set_receiver(row, klass);
 191   }
 192 }
 193 
 194 
 195 void ciTypeStackSlotEntries::translate_type_data_from(const TypeStackSlotEntries* entries) {
 196   for (int i = 0; i < number_of_entries(); i++) {
 197     intptr_t k = entries->type(i);
 198     TypeStackSlotEntries::set_type(i, translate_klass(k));
 199   }
 200 }
 201 
 202 void ciReturnTypeEntry::translate_type_data_from(const ReturnTypeEntry* ret) {
 203   intptr_t k = ret->type();
 204   set_type(translate_klass(k));
 205 }
 206 
 207 void ciSpeculativeTrapData::translate_from(const ProfileData* data) {
 208   Method* m = data->as_SpeculativeTrapData()->method();
 209   ciMethod* ci_m = CURRENT_ENV->get_method(m);
 210   set_method(ci_m);
 211 }
 212 
 213 // Get the data at an arbitrary (sort of) data index.
 214 ciProfileData* ciMethodData::data_at(int data_index) {
 215   if (out_of_bounds(data_index)) {
 216     return NULL;
 217   }
 218   DataLayout* data_layout = data_layout_at(data_index);
 219 
 220   switch (data_layout->tag()) {
 221   case DataLayout::no_tag:
 222   default:
 223     ShouldNotReachHere();
 224     return NULL;
 225   case DataLayout::bit_data_tag:
 226     return new ciBitData(data_layout);
 227   case DataLayout::counter_data_tag:
 228     return new ciCounterData(data_layout);
 229   case DataLayout::jump_data_tag:
 230     return new ciJumpData(data_layout);
 231   case DataLayout::receiver_type_data_tag:
 232     return new ciReceiverTypeData(data_layout);
 233   case DataLayout::virtual_call_data_tag:
 234     return new ciVirtualCallData(data_layout);
 235   case DataLayout::ret_data_tag:
 236     return new ciRetData(data_layout);
 237   case DataLayout::branch_data_tag:
 238     return new ciBranchData(data_layout);
 239   case DataLayout::multi_branch_data_tag:
 240     return new ciMultiBranchData(data_layout);
 241   case DataLayout::arg_info_data_tag:
 242     return new ciArgInfoData(data_layout);
 243   case DataLayout::call_type_data_tag:
 244     return new ciCallTypeData(data_layout);
 245   case DataLayout::virtual_call_type_data_tag:
 246     return new ciVirtualCallTypeData(data_layout);
 247   case DataLayout::parameters_type_data_tag:
 248     return new ciParametersTypeData(data_layout);
 249   };
 250 }
 251 
 252 // Iteration over data.
 253 ciProfileData* ciMethodData::next_data(ciProfileData* current) {
 254   int current_index = dp_to_di(current->dp());
 255   int next_index = current_index + current->size_in_bytes();
 256   ciProfileData* next = data_at(next_index);
 257   return next;
 258 }
 259 
 260 ciProfileData* ciMethodData::bci_to_extra_data(int bci, ciMethod* m, bool& two_free_slots) {
 261   DataLayout* dp  = extra_data_base();
 262   DataLayout* end = args_data_limit();
 263   two_free_slots = false;
 264   for (;dp < end; dp = MethodData::next_extra(dp)) {
 265     switch(dp->tag()) {
 266     case DataLayout::no_tag:
 267       _saw_free_extra_data = true;  // observed an empty slot (common case)
 268       two_free_slots = (MethodData::next_extra(dp)->tag() == DataLayout::no_tag);
 269       return NULL;
 270     case DataLayout::arg_info_data_tag:
 271       return NULL; // ArgInfoData is at the end of extra data section.
 272     case DataLayout::bit_data_tag:
 273       if (m == NULL && dp->bci() == bci) {
 274         return new ciBitData(dp);
 275       }
 276       break;
 277     case DataLayout::speculative_trap_data_tag: {
 278       ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
 279       // data->method() might be null if the MDO is snapshotted
 280       // concurrently with a trap
 281       if (m != NULL && data->method() == m && dp->bci() == bci) {
 282         return data;
 283       }
 284       break;
 285     }
 286     default:
 287       fatal("bad tag = %d", dp->tag());
 288     }
 289   }
 290   return NULL;
 291 }
 292 
 293 // Translate a bci to its corresponding data, or NULL.
 294 ciProfileData* ciMethodData::bci_to_data(int bci, ciMethod* m) {
 295   // If m is not NULL we look for a SpeculativeTrapData entry
 296   if (m == NULL) {
 297     ciProfileData* data = data_before(bci);
 298     for ( ; is_valid(data); data = next_data(data)) {
 299       if (data->bci() == bci) {
 300         set_hint_di(dp_to_di(data->dp()));
 301         return data;
 302       } else if (data->bci() > bci) {
 303         break;
 304       }
 305     }
 306   }
 307   bool two_free_slots = false;
 308   ciProfileData* result = bci_to_extra_data(bci, m, two_free_slots);
 309   if (result != NULL) {
 310     return result;
 311   }
 312   if (m != NULL && !two_free_slots) {
 313     // We were looking for a SpeculativeTrapData entry we didn't
 314     // find. Room is not available for more SpeculativeTrapData
 315     // entries, look in the non SpeculativeTrapData entries.
 316     return bci_to_data(bci, NULL);
 317   }
 318   return NULL;
 319 }
 320 
 321 // Conservatively decode the trap_state of a ciProfileData.
 322 int ciMethodData::has_trap_at(ciProfileData* data, int reason) {
 323   typedef Deoptimization::DeoptReason DR_t;
 324   int per_bc_reason
 325     = Deoptimization::reason_recorded_per_bytecode_if_any((DR_t) reason);
 326   if (trap_count(reason) == 0) {
 327     // Impossible for this trap to have occurred, regardless of trap_state.
 328     // Note:  This happens if the MDO is empty.
 329     return 0;
 330   } else if (per_bc_reason == Deoptimization::Reason_none) {
 331     // We cannot conclude anything; a trap happened somewhere, maybe here.
 332     return -1;
 333   } else if (data == NULL) {
 334     // No profile here, not even an extra_data record allocated on the fly.
 335     // If there are empty extra_data records, and there had been a trap,
 336     // there would have been a non-null data pointer.  If there are no
 337     // free extra_data records, we must return a conservative -1.
 338     if (_saw_free_extra_data)
 339       return 0;                 // Q.E.D.
 340     else
 341       return -1;                // bail with a conservative answer
 342   } else {
 343     return Deoptimization::trap_state_has_reason(data->trap_state(), per_bc_reason);
 344   }
 345 }
 346 
 347 int ciMethodData::trap_recompiled_at(ciProfileData* data) {
 348   if (data == NULL) {
 349     return (_saw_free_extra_data? 0: -1);  // (see previous method)
 350   } else {
 351     return Deoptimization::trap_state_is_recompiled(data->trap_state())? 1: 0;
 352   }
 353 }
 354 
 355 void ciMethodData::clear_escape_info() {
 356   VM_ENTRY_MARK;
 357   MethodData* mdo = get_MethodData();
 358   if (mdo != NULL) {
 359     mdo->clear_escape_info();
 360     ArgInfoData *aid = arg_info();
 361     int arg_count = (aid == NULL) ? 0 : aid->number_of_args();
 362     for (int i = 0; i < arg_count; i++) {
 363       set_arg_modified(i, 0);
 364     }
 365   }
 366   _eflags = _arg_local = _arg_stack = _arg_returned = 0;
 367 }
 368 
 369 // copy our escape info to the MethodData* if it exists
 370 void ciMethodData::update_escape_info() {
 371   VM_ENTRY_MARK;
 372   MethodData* mdo = get_MethodData();
 373   if ( mdo != NULL) {
 374     mdo->set_eflags(_eflags);
 375     mdo->set_arg_local(_arg_local);
 376     mdo->set_arg_stack(_arg_stack);
 377     mdo->set_arg_returned(_arg_returned);
 378     int arg_count = mdo->method()->size_of_parameters();
 379     for (int i = 0; i < arg_count; i++) {
 380       mdo->set_arg_modified(i, arg_modified(i));
 381     }
 382   }
 383 }
 384 
 385 void ciMethodData::set_compilation_stats(short loops, short blocks) {
 386   VM_ENTRY_MARK;
 387   MethodData* mdo = get_MethodData();
 388   if (mdo != NULL) {
 389     mdo->set_num_loops(loops);
 390     mdo->set_num_blocks(blocks);
 391   }
 392 }
 393 
 394 void ciMethodData::set_would_profile(bool p) {
 395   VM_ENTRY_MARK;
 396   MethodData* mdo = get_MethodData();
 397   if (mdo != NULL) {
 398     mdo->set_would_profile(p);
 399   }
 400 }
 401 
 402 void ciMethodData::set_argument_type(int bci, int i, ciKlass* k) {
 403   VM_ENTRY_MARK;
 404   MethodData* mdo = get_MethodData();
 405   if (mdo != NULL) {
 406     ProfileData* data = mdo->bci_to_data(bci);
 407     if (data != NULL) {
 408       if (data->is_CallTypeData()) {
 409         data->as_CallTypeData()->set_argument_type(i, k->get_Klass());
 410       } else {
 411         assert(data->is_VirtualCallTypeData(), "no arguments!");
 412         data->as_VirtualCallTypeData()->set_argument_type(i, k->get_Klass());
 413       }
 414     }
 415   }
 416 }
 417 
 418 void ciMethodData::set_parameter_type(int i, ciKlass* k) {
 419   VM_ENTRY_MARK;
 420   MethodData* mdo = get_MethodData();
 421   if (mdo != NULL) {
 422     mdo->parameters_type_data()->set_type(i, k->get_Klass());
 423   }
 424 }
 425 
 426 void ciMethodData::set_return_type(int bci, ciKlass* k) {
 427   VM_ENTRY_MARK;
 428   MethodData* mdo = get_MethodData();
 429   if (mdo != NULL) {
 430     ProfileData* data = mdo->bci_to_data(bci);
 431     if (data != NULL) {
 432       if (data->is_CallTypeData()) {
 433         data->as_CallTypeData()->set_return_type(k->get_Klass());
 434       } else {
 435         assert(data->is_VirtualCallTypeData(), "no arguments!");
 436         data->as_VirtualCallTypeData()->set_return_type(k->get_Klass());
 437       }
 438     }
 439   }
 440 }
 441 
 442 bool ciMethodData::has_escape_info() {
 443   return eflag_set(MethodData::estimated);
 444 }
 445 
 446 void ciMethodData::set_eflag(MethodData::EscapeFlag f) {
 447   set_bits(_eflags, f);
 448 }
 449 
 450 void ciMethodData::clear_eflag(MethodData::EscapeFlag f) {
 451   clear_bits(_eflags, f);
 452 }
 453 
 454 bool ciMethodData::eflag_set(MethodData::EscapeFlag f) const {
 455   return mask_bits(_eflags, f) != 0;
 456 }
 457 
 458 void ciMethodData::set_arg_local(int i) {
 459   set_nth_bit(_arg_local, i);
 460 }
 461 
 462 void ciMethodData::set_arg_stack(int i) {
 463   set_nth_bit(_arg_stack, i);
 464 }
 465 
 466 void ciMethodData::set_arg_returned(int i) {
 467   set_nth_bit(_arg_returned, i);
 468 }
 469 
 470 void ciMethodData::set_arg_modified(int arg, uint val) {
 471   ArgInfoData *aid = arg_info();
 472   if (aid == NULL)
 473     return;
 474   assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
 475   aid->set_arg_modified(arg, val);
 476 }
 477 
 478 bool ciMethodData::is_arg_local(int i) const {
 479   return is_set_nth_bit(_arg_local, i);
 480 }
 481 
 482 bool ciMethodData::is_arg_stack(int i) const {
 483   return is_set_nth_bit(_arg_stack, i);
 484 }
 485 
 486 bool ciMethodData::is_arg_returned(int i) const {
 487   return is_set_nth_bit(_arg_returned, i);
 488 }
 489 
 490 uint ciMethodData::arg_modified(int arg) const {
 491   ArgInfoData *aid = arg_info();
 492   if (aid == NULL)
 493     return 0;
 494   assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
 495   return aid->arg_modified(arg);
 496 }
 497 
 498 ByteSize ciMethodData::offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) {
 499   // Get offset within MethodData* of the data array
 500   ByteSize data_offset = MethodData::data_offset();
 501 
 502   // Get cell offset of the ProfileData within data array
 503   int cell_offset = dp_to_di(data->dp());
 504 
 505   // Add in counter_offset, the # of bytes into the ProfileData of counter or flag
 506   int offset = in_bytes(data_offset) + cell_offset + in_bytes(slot_offset_in_data);
 507 
 508   return in_ByteSize(offset);
 509 }
 510 
 511 ciArgInfoData *ciMethodData::arg_info() const {
 512   // Should be last, have to skip all traps.
 513   DataLayout* dp  = extra_data_base();
 514   DataLayout* end = args_data_limit();
 515   for (; dp < end; dp = MethodData::next_extra(dp)) {
 516     if (dp->tag() == DataLayout::arg_info_data_tag)
 517       return new ciArgInfoData(dp);
 518   }
 519   return NULL;
 520 }
 521 
 522 
 523 // Implementation of the print method.
 524 void ciMethodData::print_impl(outputStream* st) {
 525   ciMetadata::print_impl(st);
 526 }
 527 
 528 void ciMethodData::dump_replay_data_type_helper(outputStream* out, int round, int& count, ProfileData* pdata, ByteSize offset, ciKlass* k) {
 529   if (k != NULL) {
 530     if (round == 0) {
 531       count++;
 532     } else {
 533       out->print(" %d %s", (int)(dp_to_di(pdata->dp() + in_bytes(offset)) / sizeof(intptr_t)), k->name()->as_quoted_ascii());
 534     }
 535   }
 536 }
 537 
 538 template<class T> void ciMethodData::dump_replay_data_receiver_type_helper(outputStream* out, int round, int& count, T* vdata) {
 539   for (uint i = 0; i < vdata->row_limit(); i++) {
 540     dump_replay_data_type_helper(out, round, count, vdata, vdata->receiver_offset(i), vdata->receiver(i));
 541   }
 542 }
 543 
 544 template<class T> void ciMethodData::dump_replay_data_call_type_helper(outputStream* out, int round, int& count, T* call_type_data) {
 545   if (call_type_data->has_arguments()) {
 546     for (int i = 0; i < call_type_data->number_of_arguments(); i++) {
 547       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));
 548     }
 549   }
 550   if (call_type_data->has_return()) {
 551     dump_replay_data_type_helper(out, round, count, call_type_data, call_type_data->return_type_offset(), call_type_data->valid_return_type());
 552   }
 553 }
 554 
 555 void ciMethodData::dump_replay_data_extra_data_helper(outputStream* out, int round, int& count) {
 556   DataLayout* dp  = extra_data_base();
 557   DataLayout* end = args_data_limit();
 558 
 559   for (;dp < end; dp = MethodData::next_extra(dp)) {
 560     switch(dp->tag()) {
 561     case DataLayout::no_tag:
 562     case DataLayout::arg_info_data_tag:
 563       return;
 564     case DataLayout::bit_data_tag:
 565       break;
 566     case DataLayout::speculative_trap_data_tag: {
 567       ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
 568       ciMethod* m = data->method();
 569       if (m != NULL) {
 570         if (round == 0) {
 571           count++;
 572         } else {
 573           out->print(" %d ", (int)(dp_to_di(((address)dp) + in_bytes(ciSpeculativeTrapData::method_offset())) / sizeof(intptr_t)));
 574           m->dump_name_as_ascii(out);
 575         }
 576       }
 577       break;
 578     }
 579     default:
 580       fatal("bad tag = %d", dp->tag());
 581     }
 582   }
 583 }
 584 
 585 void ciMethodData::dump_replay_data(outputStream* out) {
 586   ResourceMark rm;
 587   MethodData* mdo = get_MethodData();
 588   Method* method = mdo->method();
 589   Klass* holder = method->method_holder();
 590   out->print("ciMethodData %s %s %s %d %d",
 591              holder->name()->as_quoted_ascii(),
 592              method->name()->as_quoted_ascii(),
 593              method->signature()->as_quoted_ascii(),
 594              _state,
 595              current_mileage());
 596 
 597   // dump the contents of the MDO header as raw data
 598   unsigned char* orig = (unsigned char*)&_orig;
 599   int length = sizeof(_orig);
 600   out->print(" orig %d", length);
 601   for (int i = 0; i < length; i++) {
 602     out->print(" %d", orig[i]);
 603   }
 604 
 605   // dump the MDO data as raw data
 606   int elements = (data_size() + extra_data_size()) / sizeof(intptr_t);
 607   out->print(" data %d", elements);
 608   for (int i = 0; i < elements; i++) {
 609     // We could use INTPTR_FORMAT here but that's a zero justified
 610     // which makes comparing it with the SA version of this output
 611     // harder.
 612 #ifdef _LP64
 613     out->print(" 0x%" FORMAT64_MODIFIER "x", data()[i]);
 614 #else
 615     out->print(" 0x%x", data()[i]);
 616 #endif
 617   }
 618 
 619   // The MDO contained oop references as ciObjects, so scan for those
 620   // and emit pairs of offset and klass name so that they can be
 621   // reconstructed at runtime.  The first round counts the number of
 622   // oop references and the second actually emits them.
 623   ciParametersTypeData* parameters = parameters_type_data();
 624   for (int count = 0, round = 0; round < 2; round++) {
 625     if (round == 1) out->print(" oops %d", count);
 626     ProfileData* pdata = first_data();
 627     for ( ; is_valid(pdata); pdata = next_data(pdata)) {
 628       if (pdata->is_VirtualCallData()) {
 629         ciVirtualCallData* vdata = (ciVirtualCallData*)pdata;
 630         dump_replay_data_receiver_type_helper<ciVirtualCallData>(out, round, count, vdata);
 631         if (pdata->is_VirtualCallTypeData()) {
 632           ciVirtualCallTypeData* call_type_data = (ciVirtualCallTypeData*)pdata;
 633           dump_replay_data_call_type_helper<ciVirtualCallTypeData>(out, round, count, call_type_data);
 634         }
 635       } else if (pdata->is_ReceiverTypeData()) {
 636         ciReceiverTypeData* vdata = (ciReceiverTypeData*)pdata;
 637         dump_replay_data_receiver_type_helper<ciReceiverTypeData>(out, round, count, vdata);
 638       } else if (pdata->is_CallTypeData()) {
 639           ciCallTypeData* call_type_data = (ciCallTypeData*)pdata;
 640           dump_replay_data_call_type_helper<ciCallTypeData>(out, round, count, call_type_data);
 641       }
 642     }
 643     if (parameters != NULL) {
 644       for (int i = 0; i < parameters->number_of_parameters(); i++) {
 645         dump_replay_data_type_helper(out, round, count, parameters, ParametersTypeData::type_offset(i), parameters->valid_parameter_type(i));
 646       }
 647     }
 648   }
 649   for (int count = 0, round = 0; round < 2; round++) {
 650     if (round == 1) out->print(" methods %d", count);
 651     dump_replay_data_extra_data_helper(out, round, count);
 652   }
 653   out->cr();
 654 }
 655 
 656 #ifndef PRODUCT
 657 void ciMethodData::print() {
 658   print_data_on(tty);
 659 }
 660 
 661 void ciMethodData::print_data_on(outputStream* st) {
 662   ResourceMark rm;
 663   ciParametersTypeData* parameters = parameters_type_data();
 664   if (parameters != NULL) {
 665     parameters->print_data_on(st);
 666   }
 667   ciProfileData* data;
 668   for (data = first_data(); is_valid(data); data = next_data(data)) {
 669     st->print("%d", dp_to_di(data->dp()));
 670     st->fill_to(6);
 671     data->print_data_on(st);
 672   }
 673   st->print_cr("--- Extra data:");
 674   DataLayout* dp  = extra_data_base();
 675   DataLayout* end = args_data_limit();
 676   for (;; dp = MethodData::next_extra(dp)) {
 677     assert(dp < end, "moved past end of extra data");
 678     switch (dp->tag()) {
 679     case DataLayout::no_tag:
 680       continue;
 681     case DataLayout::bit_data_tag:
 682       data = new BitData(dp);
 683       break;
 684     case DataLayout::arg_info_data_tag:
 685       data = new ciArgInfoData(dp);
 686       dp = end; // ArgInfoData is at the end of extra data section.
 687       break;
 688     case DataLayout::speculative_trap_data_tag:
 689       data = new ciSpeculativeTrapData(dp);
 690       break;
 691     default:
 692       fatal("unexpected tag %d", dp->tag());
 693     }
 694     st->print("%d", dp_to_di(data->dp()));
 695     st->fill_to(6);
 696     data->print_data_on(st);
 697     if (dp >= end) return;
 698   }
 699 }
 700 
 701 void ciTypeEntries::print_ciklass(outputStream* st, intptr_t k) {
 702   if (TypeEntries::is_type_none(k)) {
 703     st->print("none");
 704   } else if (TypeEntries::is_type_unknown(k)) {
 705     st->print("unknown");
 706   } else {
 707     valid_ciklass(k)->print_name_on(st);
 708   }
 709   if (TypeEntries::was_null_seen(k)) {
 710     st->print(" (null seen)");
 711   }
 712 }
 713 
 714 void ciTypeStackSlotEntries::print_data_on(outputStream* st) const {
 715   for (int i = 0; i < number_of_entries(); i++) {
 716     _pd->tab(st);
 717     st->print("%d: stack (%u) ", i, stack_slot(i));
 718     print_ciklass(st, type(i));
 719     st->cr();
 720   }
 721 }
 722 
 723 void ciReturnTypeEntry::print_data_on(outputStream* st) const {
 724   _pd->tab(st);
 725   st->print("ret ");
 726   print_ciklass(st, type());
 727   st->cr();
 728 }
 729 
 730 void ciCallTypeData::print_data_on(outputStream* st, const char* extra) const {
 731   print_shared(st, "ciCallTypeData", extra);
 732   if (has_arguments()) {
 733     tab(st, true);
 734     st->print_cr("argument types");
 735     args()->print_data_on(st);
 736   }
 737   if (has_return()) {
 738     tab(st, true);
 739     st->print_cr("return type");
 740     ret()->print_data_on(st);
 741   }
 742 }
 743 
 744 void ciReceiverTypeData::print_receiver_data_on(outputStream* st) const {
 745   uint row;
 746   int entries = 0;
 747   for (row = 0; row < row_limit(); row++) {
 748     if (receiver(row) != NULL)  entries++;
 749   }
 750   st->print_cr("count(%u) entries(%u)", count(), entries);
 751   for (row = 0; row < row_limit(); row++) {
 752     if (receiver(row) != NULL) {
 753       tab(st);
 754       receiver(row)->print_name_on(st);
 755       st->print_cr("(%u)", receiver_count(row));
 756     }
 757   }
 758 }
 759 
 760 void ciReceiverTypeData::print_data_on(outputStream* st, const char* extra) const {
 761   print_shared(st, "ciReceiverTypeData", extra);
 762   print_receiver_data_on(st);
 763 }
 764 
 765 void ciVirtualCallData::print_data_on(outputStream* st, const char* extra) const {
 766   print_shared(st, "ciVirtualCallData", extra);
 767   rtd_super()->print_receiver_data_on(st);
 768 }
 769 
 770 void ciVirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const {
 771   print_shared(st, "ciVirtualCallTypeData", extra);
 772   rtd_super()->print_receiver_data_on(st);
 773   if (has_arguments()) {
 774     tab(st, true);
 775     st->print("argument types");
 776     args()->print_data_on(st);
 777   }
 778   if (has_return()) {
 779     tab(st, true);
 780     st->print("return type");
 781     ret()->print_data_on(st);
 782   }
 783 }
 784 
 785 void ciParametersTypeData::print_data_on(outputStream* st, const char* extra) const {
 786   st->print_cr("ciParametersTypeData");
 787   parameters()->print_data_on(st);
 788 }
 789 
 790 void ciSpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const {
 791   st->print_cr("ciSpeculativeTrapData");
 792   tab(st);
 793   method()->print_short_name(st);
 794   st->cr();
 795 }
 796 #endif