rev 5462 : 8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by:

   1 /*
   2  * Copyright (c) 2000, 2013, 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 "classfile/systemDictionary.hpp"
  27 #include "interpreter/bytecode.hpp"
  28 #include "interpreter/bytecodeStream.hpp"
  29 #include "interpreter/linkResolver.hpp"
  30 #include "memory/heapInspection.hpp"
  31 #include "oops/methodData.hpp"
  32 #include "prims/jvmtiRedefineClasses.hpp"
  33 #include "runtime/compilationPolicy.hpp"
  34 #include "runtime/deoptimization.hpp"
  35 #include "runtime/handles.inline.hpp"
  36 
  37 // ==================================================================
  38 // DataLayout
  39 //
  40 // Overlay for generic profiling data.
  41 
  42 // Some types of data layouts need a length field.
  43 bool DataLayout::needs_array_len(u1 tag) {
  44   return (tag == multi_branch_data_tag) || (tag == arg_info_data_tag);
  45 }
  46 
  47 // Perform generic initialization of the data.  More specific
  48 // initialization occurs in overrides of ProfileData::post_initialize.
  49 void DataLayout::initialize(u1 tag, u2 bci, int cell_count) {
  50   _header._bits = (intptr_t)0;
  51   _header._struct._tag = tag;
  52   _header._struct._bci = bci;
  53   for (int i = 0; i < cell_count; i++) {
  54     set_cell_at(i, (intptr_t)0);
  55   }
  56   if (needs_array_len(tag)) {
  57     set_cell_at(ArrayData::array_len_off_set, cell_count - 1); // -1 for header.
  58   }
  59   if (tag == call_type_data_tag) {
  60     CallTypeData::initialize(this, cell_count);
  61   } else if (tag == virtual_call_type_data_tag) {
  62     VirtualCallTypeData::initialize(this, cell_count);
  63   }
  64 }
  65 
  66 void DataLayout::clean_weak_klass_links(BoolObjectClosure* cl) {
  67   ResourceMark m;
  68   data_in()->clean_weak_klass_links(cl);
  69 }
  70 
  71 
  72 // ==================================================================
  73 // ProfileData
  74 //
  75 // A ProfileData object is created to refer to a section of profiling
  76 // data in a structured way.
  77 
  78 // Constructor for invalid ProfileData.
  79 ProfileData::ProfileData() {
  80   _data = NULL;
  81 }
  82 
  83 #ifndef PRODUCT
  84 void ProfileData::print_shared(outputStream* st, const char* name) const {
  85   st->print("bci: %d", bci());
  86   st->fill_to(tab_width_one);
  87   st->print("%s", name);
  88   tab(st);
  89   int trap = trap_state();
  90   if (trap != 0) {
  91     char buf[100];
  92     st->print("trap(%s) ", Deoptimization::format_trap_state(buf, sizeof(buf), trap));
  93   }
  94   int flags = data()->flags();
  95   if (flags != 0)
  96     st->print("flags(%d) ", flags);
  97 }
  98 
  99 void ProfileData::tab(outputStream* st, bool first) const {
 100   st->fill_to(first ? tab_width_one : tab_width_two);
 101 }
 102 #endif // !PRODUCT
 103 
 104 // ==================================================================
 105 // BitData
 106 //
 107 // A BitData corresponds to a one-bit flag.  This is used to indicate
 108 // whether a checkcast bytecode has seen a null value.
 109 
 110 
 111 #ifndef PRODUCT
 112 void BitData::print_data_on(outputStream* st) const {
 113   print_shared(st, "BitData");
 114 }
 115 #endif // !PRODUCT
 116 
 117 // ==================================================================
 118 // CounterData
 119 //
 120 // A CounterData corresponds to a simple counter.
 121 
 122 #ifndef PRODUCT
 123 void CounterData::print_data_on(outputStream* st) const {
 124   print_shared(st, "CounterData");
 125   st->print_cr("count(%u)", count());
 126 }
 127 #endif // !PRODUCT
 128 
 129 // ==================================================================
 130 // JumpData
 131 //
 132 // A JumpData is used to access profiling information for a direct
 133 // branch.  It is a counter, used for counting the number of branches,
 134 // plus a data displacement, used for realigning the data pointer to
 135 // the corresponding target bci.
 136 
 137 void JumpData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
 138   assert(stream->bci() == bci(), "wrong pos");
 139   int target;
 140   Bytecodes::Code c = stream->code();
 141   if (c == Bytecodes::_goto_w || c == Bytecodes::_jsr_w) {
 142     target = stream->dest_w();
 143   } else {
 144     target = stream->dest();
 145   }
 146   int my_di = mdo->dp_to_di(dp());
 147   int target_di = mdo->bci_to_di(target);
 148   int offset = target_di - my_di;
 149   set_displacement(offset);
 150 }
 151 
 152 #ifndef PRODUCT
 153 void JumpData::print_data_on(outputStream* st) const {
 154   print_shared(st, "JumpData");
 155   st->print_cr("taken(%u) displacement(%d)", taken(), displacement());
 156 }
 157 #endif // !PRODUCT
 158 
 159 int TypeStackSlotEntries::compute_cell_count(Symbol* signature, int max) {


 160   ResourceMark rm;
 161   SignatureStream ss(signature);
 162   int args_count = MIN2(ss.reference_parameter_count(), max);

 163   return args_count * per_arg_cell_count;
 164 }
 165 
 166 int TypeEntriesAtCall::compute_cell_count(BytecodeStream* stream) {
 167   assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
 168   assert(TypeStackSlotEntries::per_arg_count() > ReturnTypeEntry::static_cell_count(), "code to test for arguments/results broken");
 169   Bytecode_invoke inv(stream->method(), stream->bci());
 170   int args_cell = 0;
 171   if (arguments_profiling_enabled()) {
 172     args_cell = TypeStackSlotEntries::compute_cell_count(inv.signature(), TypeProfileArgsLimit);
 173   }
 174   int ret_cell = 0;
 175   if (return_profiling_enabled() && (inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY)) {
 176     ret_cell = ReturnTypeEntry::static_cell_count();
 177   }
 178   int header_cell = 0;
 179   if (args_cell + ret_cell > 0) {
 180     header_cell = header_cell_count();
 181   }
 182 
 183   return header_cell + args_cell + ret_cell;
 184 }
 185 
 186 class ArgumentOffsetComputer : public SignatureInfo {
 187 private:
 188   int _max;
 189   GrowableArray<int> _offsets;
 190 
 191   void set(int size, BasicType type) { _size += size; }
 192   void do_object(int begin, int end) {
 193     if (_offsets.length() < _max) {
 194       _offsets.push(_size);
 195     }
 196     SignatureInfo::do_object(begin, end);
 197   }
 198   void do_array (int begin, int end) {
 199     if (_offsets.length() < _max) {
 200       _offsets.push(_size);
 201     }
 202     SignatureInfo::do_array(begin, end);
 203   }
 204 
 205 public:
 206   ArgumentOffsetComputer(Symbol* signature, int max)
 207     : SignatureInfo(signature), _max(max), _offsets(Thread::current(), max) {
 208   }
 209 
 210   int total() { lazy_iterate_parameters(); return _size; }
 211 
 212   int off_at(int i) const { return _offsets.at(i); }
 213 };
 214 
 215 void TypeStackSlotEntries::post_initialize(Symbol* signature, bool has_receiver) {
 216   ResourceMark rm;
 217   ArgumentOffsetComputer aos(signature, _number_of_entries);







 218   aos.total();
 219   for (int i = 0; i < _number_of_entries; i++) {
 220     set_stack_slot(i, aos.off_at(i) + (has_receiver ? 1 : 0));
 221     set_type(i, type_none());
 222   }
 223 }
 224 
 225 void CallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
 226   assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
 227   Bytecode_invoke inv(stream->method(), stream->bci());
 228 
 229   SignatureStream ss(inv.signature());
 230   if (has_arguments()) {
 231 #ifdef ASSERT
 232     ResourceMark rm;
 233     int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit);
 234     assert(count > 0, "room for args type but none found?");
 235     check_number_of_arguments(count);
 236 #endif
 237     _args.post_initialize(inv.signature(), inv.has_receiver());
 238   }
 239 
 240   if (has_return()) {
 241     assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?");
 242     _ret.post_initialize();
 243   }
 244 }
 245 
 246 void VirtualCallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
 247   assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
 248   Bytecode_invoke inv(stream->method(), stream->bci());
 249 
 250   if (has_arguments()) {
 251 #ifdef ASSERT
 252     ResourceMark rm;
 253     SignatureStream ss(inv.signature());
 254     int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit);
 255     assert(count > 0, "room for args type but none found?");
 256     check_number_of_arguments(count);
 257 #endif
 258     _args.post_initialize(inv.signature(), inv.has_receiver());
 259   }
 260 
 261   if (has_return()) {
 262     assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?");
 263     _ret.post_initialize();
 264   }
 265 }
 266 
 267 bool TypeEntries::is_loader_alive(BoolObjectClosure* is_alive_cl, intptr_t p) {
 268   return !is_type_none(p) &&
 269     !((Klass*)klass_part(p))->is_loader_alive(is_alive_cl);
 270 }
 271 
 272 void TypeStackSlotEntries::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
 273   for (int i = 0; i < _number_of_entries; i++) {
 274     intptr_t p = type(i);
 275     if (is_loader_alive(is_alive_cl, p)) {
 276       set_type(i, type_none());
 277     }
 278   }
 279 }
 280 
 281 void ReturnTypeEntry::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
 282   intptr_t p = type();
 283   if (is_loader_alive(is_alive_cl, p)) {
 284     set_type(type_none());
 285   }
 286 }
 287 
 288 bool TypeEntriesAtCall::return_profiling_enabled() {
 289   return MethodData::profile_return();
 290 }
 291 
 292 bool TypeEntriesAtCall::arguments_profiling_enabled() {
 293   return MethodData::profile_arguments();
 294 }
 295 
 296 #ifndef PRODUCT
 297 void TypeEntries::print_klass(outputStream* st, intptr_t k) {
 298   if (is_type_none(k)) {
 299     st->print("none");
 300   } else if (is_type_unknown(k)) {
 301     st->print("unknown");
 302   } else {
 303     valid_klass(k)->print_value_on(st);
 304   }
 305   if (was_null_seen(k)) {
 306     st->print(" (null seen)");
 307   }
 308 }
 309 
 310 void TypeStackSlotEntries::print_data_on(outputStream* st) const {
 311   for (int i = 0; i < _number_of_entries; i++) {
 312     _pd->tab(st);
 313     st->print("%d: stack(%u) ", i, stack_slot(i));
 314     print_klass(st, type(i));
 315     st->cr();
 316   }
 317 }
 318 
 319 void ReturnTypeEntry::print_data_on(outputStream* st) const {
 320   _pd->tab(st);
 321   print_klass(st, type());
 322   st->cr();
 323 }
 324 
 325 void CallTypeData::print_data_on(outputStream* st) const {
 326   CounterData::print_data_on(st);
 327   if (has_arguments()) {
 328     tab(st, true);
 329     st->print("argument types");
 330     _args.print_data_on(st);
 331   }
 332   if (has_return()) {
 333     tab(st, true);
 334     st->print("return type");
 335     _ret.print_data_on(st);
 336   }
 337 }
 338 
 339 void VirtualCallTypeData::print_data_on(outputStream* st) const {
 340   VirtualCallData::print_data_on(st);
 341   if (has_arguments()) {
 342     tab(st, true);
 343     st->print("argument types");
 344     _args.print_data_on(st);
 345   }
 346   if (has_return()) {
 347     tab(st, true);
 348     st->print("return type");
 349     _ret.print_data_on(st);
 350   }
 351 }
 352 #endif
 353 
 354 // ==================================================================
 355 // ReceiverTypeData
 356 //
 357 // A ReceiverTypeData is used to access profiling information about a
 358 // dynamic type check.  It consists of a counter which counts the total times
 359 // that the check is reached, and a series of (Klass*, count) pairs
 360 // which are used to store a type profile for the receiver of the check.
 361 
 362 void ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
 363     for (uint row = 0; row < row_limit(); row++) {
 364     Klass* p = receiver(row);
 365     if (p != NULL && !p->is_loader_alive(is_alive_cl)) {
 366       clear_row(row);
 367     }
 368   }
 369 }
 370 
 371 #ifndef PRODUCT
 372 void ReceiverTypeData::print_receiver_data_on(outputStream* st) const {
 373   uint row;
 374   int entries = 0;
 375   for (row = 0; row < row_limit(); row++) {
 376     if (receiver(row) != NULL)  entries++;
 377   }
 378   st->print_cr("count(%u) entries(%u)", count(), entries);
 379   int total = count();
 380   for (row = 0; row < row_limit(); row++) {
 381     if (receiver(row) != NULL) {
 382       total += receiver_count(row);
 383     }
 384   }
 385   for (row = 0; row < row_limit(); row++) {
 386     if (receiver(row) != NULL) {
 387       tab(st);
 388       receiver(row)->print_value_on(st);
 389       st->print_cr("(%u %4.2f)", receiver_count(row), (float) receiver_count(row) / (float) total);
 390     }
 391   }
 392 }
 393 void ReceiverTypeData::print_data_on(outputStream* st) const {
 394   print_shared(st, "ReceiverTypeData");
 395   print_receiver_data_on(st);
 396 }
 397 void VirtualCallData::print_data_on(outputStream* st) const {
 398   print_shared(st, "VirtualCallData");
 399   print_receiver_data_on(st);
 400 }
 401 #endif // !PRODUCT
 402 
 403 // ==================================================================
 404 // RetData
 405 //
 406 // A RetData is used to access profiling information for a ret bytecode.
 407 // It is composed of a count of the number of times that the ret has
 408 // been executed, followed by a series of triples of the form
 409 // (bci, count, di) which count the number of times that some bci was the
 410 // target of the ret and cache a corresponding displacement.
 411 
 412 void RetData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
 413   for (uint row = 0; row < row_limit(); row++) {
 414     set_bci_displacement(row, -1);
 415     set_bci(row, no_bci);
 416   }
 417   // release so other threads see a consistent state.  bci is used as
 418   // a valid flag for bci_displacement.
 419   OrderAccess::release();
 420 }
 421 
 422 // This routine needs to atomically update the RetData structure, so the
 423 // caller needs to hold the RetData_lock before it gets here.  Since taking
 424 // the lock can block (and allow GC) and since RetData is a ProfileData is a
 425 // wrapper around a derived oop, taking the lock in _this_ method will
 426 // basically cause the 'this' pointer's _data field to contain junk after the
 427 // lock.  We require the caller to take the lock before making the ProfileData
 428 // structure.  Currently the only caller is InterpreterRuntime::update_mdp_for_ret
 429 address RetData::fixup_ret(int return_bci, MethodData* h_mdo) {
 430   // First find the mdp which corresponds to the return bci.
 431   address mdp = h_mdo->bci_to_dp(return_bci);
 432 
 433   // Now check to see if any of the cache slots are open.
 434   for (uint row = 0; row < row_limit(); row++) {
 435     if (bci(row) == no_bci) {
 436       set_bci_displacement(row, mdp - dp());
 437       set_bci_count(row, DataLayout::counter_increment);
 438       // Barrier to ensure displacement is written before the bci; allows
 439       // the interpreter to read displacement without fear of race condition.
 440       release_set_bci(row, return_bci);
 441       break;
 442     }
 443   }
 444   return mdp;
 445 }
 446 
 447 
 448 #ifndef PRODUCT
 449 void RetData::print_data_on(outputStream* st) const {
 450   print_shared(st, "RetData");
 451   uint row;
 452   int entries = 0;
 453   for (row = 0; row < row_limit(); row++) {
 454     if (bci(row) != no_bci)  entries++;
 455   }
 456   st->print_cr("count(%u) entries(%u)", count(), entries);
 457   for (row = 0; row < row_limit(); row++) {
 458     if (bci(row) != no_bci) {
 459       tab(st);
 460       st->print_cr("bci(%d: count(%u) displacement(%d))",
 461                    bci(row), bci_count(row), bci_displacement(row));
 462     }
 463   }
 464 }
 465 #endif // !PRODUCT
 466 
 467 // ==================================================================
 468 // BranchData
 469 //
 470 // A BranchData is used to access profiling data for a two-way branch.
 471 // It consists of taken and not_taken counts as well as a data displacement
 472 // for the taken case.
 473 
 474 void BranchData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
 475   assert(stream->bci() == bci(), "wrong pos");
 476   int target = stream->dest();
 477   int my_di = mdo->dp_to_di(dp());
 478   int target_di = mdo->bci_to_di(target);
 479   int offset = target_di - my_di;
 480   set_displacement(offset);
 481 }
 482 
 483 #ifndef PRODUCT
 484 void BranchData::print_data_on(outputStream* st) const {
 485   print_shared(st, "BranchData");
 486   st->print_cr("taken(%u) displacement(%d)",
 487                taken(), displacement());
 488   tab(st);
 489   st->print_cr("not taken(%u)", not_taken());
 490 }
 491 #endif
 492 
 493 // ==================================================================
 494 // MultiBranchData
 495 //
 496 // A MultiBranchData is used to access profiling information for
 497 // a multi-way branch (*switch bytecodes).  It consists of a series
 498 // of (count, displacement) pairs, which count the number of times each
 499 // case was taken and specify the data displacment for each branch target.
 500 
 501 int MultiBranchData::compute_cell_count(BytecodeStream* stream) {
 502   int cell_count = 0;
 503   if (stream->code() == Bytecodes::_tableswitch) {
 504     Bytecode_tableswitch sw(stream->method()(), stream->bcp());
 505     cell_count = 1 + per_case_cell_count * (1 + sw.length()); // 1 for default
 506   } else {
 507     Bytecode_lookupswitch sw(stream->method()(), stream->bcp());
 508     cell_count = 1 + per_case_cell_count * (sw.number_of_pairs() + 1); // 1 for default
 509   }
 510   return cell_count;
 511 }
 512 
 513 void MultiBranchData::post_initialize(BytecodeStream* stream,
 514                                       MethodData* mdo) {
 515   assert(stream->bci() == bci(), "wrong pos");
 516   int target;
 517   int my_di;
 518   int target_di;
 519   int offset;
 520   if (stream->code() == Bytecodes::_tableswitch) {
 521     Bytecode_tableswitch sw(stream->method()(), stream->bcp());
 522     int len = sw.length();
 523     assert(array_len() == per_case_cell_count * (len + 1), "wrong len");
 524     for (int count = 0; count < len; count++) {
 525       target = sw.dest_offset_at(count) + bci();
 526       my_di = mdo->dp_to_di(dp());
 527       target_di = mdo->bci_to_di(target);
 528       offset = target_di - my_di;
 529       set_displacement_at(count, offset);
 530     }
 531     target = sw.default_offset() + bci();
 532     my_di = mdo->dp_to_di(dp());
 533     target_di = mdo->bci_to_di(target);
 534     offset = target_di - my_di;
 535     set_default_displacement(offset);
 536 
 537   } else {
 538     Bytecode_lookupswitch sw(stream->method()(), stream->bcp());
 539     int npairs = sw.number_of_pairs();
 540     assert(array_len() == per_case_cell_count * (npairs + 1), "wrong len");
 541     for (int count = 0; count < npairs; count++) {
 542       LookupswitchPair pair = sw.pair_at(count);
 543       target = pair.offset() + bci();
 544       my_di = mdo->dp_to_di(dp());
 545       target_di = mdo->bci_to_di(target);
 546       offset = target_di - my_di;
 547       set_displacement_at(count, offset);
 548     }
 549     target = sw.default_offset() + bci();
 550     my_di = mdo->dp_to_di(dp());
 551     target_di = mdo->bci_to_di(target);
 552     offset = target_di - my_di;
 553     set_default_displacement(offset);
 554   }
 555 }
 556 
 557 #ifndef PRODUCT
 558 void MultiBranchData::print_data_on(outputStream* st) const {
 559   print_shared(st, "MultiBranchData");
 560   st->print_cr("default_count(%u) displacement(%d)",
 561                default_count(), default_displacement());
 562   int cases = number_of_cases();
 563   for (int i = 0; i < cases; i++) {
 564     tab(st);
 565     st->print_cr("count(%u) displacement(%d)",
 566                  count_at(i), displacement_at(i));
 567   }
 568 }
 569 #endif
 570 
 571 #ifndef PRODUCT
 572 void ArgInfoData::print_data_on(outputStream* st) const {
 573   print_shared(st, "ArgInfoData");
 574   int nargs = number_of_args();
 575   for (int i = 0; i < nargs; i++) {
 576     st->print("  0x%x", arg_modified(i));
 577   }
 578   st->cr();
 579 }
 580 
 581 #endif




























 582 // ==================================================================
 583 // MethodData*
 584 //
 585 // A MethodData* holds information which has been collected about
 586 // a method.
 587 
 588 MethodData* MethodData::allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS) {
 589   int size = MethodData::compute_allocation_size_in_words(method);
 590 
 591   return new (loader_data, size, false, MetaspaceObj::MethodDataType, THREAD)
 592     MethodData(method(), size, CHECK_NULL);
 593 }
 594 
 595 int MethodData::bytecode_cell_count(Bytecodes::Code code) {
 596 #if defined(COMPILER1) && !defined(COMPILER2)
 597   return no_profile_data;
 598 #else
 599   switch (code) {
 600   case Bytecodes::_checkcast:
 601   case Bytecodes::_instanceof:
 602   case Bytecodes::_aastore:
 603     if (TypeProfileCasts) {
 604       return ReceiverTypeData::static_cell_count();
 605     } else {
 606       return BitData::static_cell_count();
 607     }
 608   case Bytecodes::_invokespecial:
 609   case Bytecodes::_invokestatic:
 610     if (MethodData::profile_arguments() || MethodData::profile_return()) {
 611       return variable_cell_count;
 612     } else {
 613       return CounterData::static_cell_count();
 614     }
 615   case Bytecodes::_goto:
 616   case Bytecodes::_goto_w:
 617   case Bytecodes::_jsr:
 618   case Bytecodes::_jsr_w:
 619     return JumpData::static_cell_count();
 620   case Bytecodes::_invokevirtual:
 621   case Bytecodes::_invokeinterface:
 622     if (MethodData::profile_arguments() || MethodData::profile_return()) {
 623       return variable_cell_count;
 624     } else {
 625       return VirtualCallData::static_cell_count();
 626     }
 627   case Bytecodes::_invokedynamic:
 628     if (MethodData::profile_arguments() || MethodData::profile_return()) {
 629       return variable_cell_count;
 630     } else {
 631       return CounterData::static_cell_count();
 632     }
 633   case Bytecodes::_ret:
 634     return RetData::static_cell_count();
 635   case Bytecodes::_ifeq:
 636   case Bytecodes::_ifne:
 637   case Bytecodes::_iflt:
 638   case Bytecodes::_ifge:
 639   case Bytecodes::_ifgt:
 640   case Bytecodes::_ifle:
 641   case Bytecodes::_if_icmpeq:
 642   case Bytecodes::_if_icmpne:
 643   case Bytecodes::_if_icmplt:
 644   case Bytecodes::_if_icmpge:
 645   case Bytecodes::_if_icmpgt:
 646   case Bytecodes::_if_icmple:
 647   case Bytecodes::_if_acmpeq:
 648   case Bytecodes::_if_acmpne:
 649   case Bytecodes::_ifnull:
 650   case Bytecodes::_ifnonnull:
 651     return BranchData::static_cell_count();
 652   case Bytecodes::_lookupswitch:
 653   case Bytecodes::_tableswitch:
 654     return variable_cell_count;
 655   }
 656   return no_profile_data;
 657 #endif
 658 }
 659 
 660 // Compute the size of the profiling information corresponding to
 661 // the current bytecode.
 662 int MethodData::compute_data_size(BytecodeStream* stream) {
 663   int cell_count = bytecode_cell_count(stream->code());
 664   if (cell_count == no_profile_data) {
 665     return 0;
 666   }
 667   if (cell_count == variable_cell_count) {
 668     switch (stream->code()) {
 669     case Bytecodes::_lookupswitch:
 670     case Bytecodes::_tableswitch:
 671       cell_count = MultiBranchData::compute_cell_count(stream);
 672       break;
 673     case Bytecodes::_invokespecial:
 674     case Bytecodes::_invokestatic:
 675     case Bytecodes::_invokedynamic:
 676       assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile");
 677       if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
 678           profile_return_for_invoke(stream->method(), stream->bci())) {
 679         cell_count = CallTypeData::compute_cell_count(stream);
 680       } else {
 681         cell_count = CounterData::static_cell_count();
 682       }
 683       break;
 684     case Bytecodes::_invokevirtual:
 685     case Bytecodes::_invokeinterface: {
 686       assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile");
 687       if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
 688           profile_return_for_invoke(stream->method(), stream->bci())) {
 689         cell_count = VirtualCallTypeData::compute_cell_count(stream);
 690       } else {
 691         cell_count = VirtualCallData::static_cell_count();
 692       }
 693       break;
 694     }
 695     default:
 696       fatal("unexpected bytecode for var length profile data");
 697     }
 698   }
 699   // Note:  cell_count might be zero, meaning that there is just
 700   //        a DataLayout header, with no extra cells.
 701   assert(cell_count >= 0, "sanity");
 702   return DataLayout::compute_size_in_bytes(cell_count);
 703 }
 704 
 705 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count) {
 706   if (ProfileTraps) {
 707     // Assume that up to 3% of BCIs with no MDP will need to allocate one.
 708     int extra_data_count = (uint)(empty_bc_count * 3) / 128 + 1;
 709     // If the method is large, let the extra BCIs grow numerous (to ~1%).
 710     int one_percent_of_data
 711       = (uint)data_size / (DataLayout::header_size_in_bytes()*128);
 712     if (extra_data_count < one_percent_of_data)
 713       extra_data_count = one_percent_of_data;
 714     if (extra_data_count > empty_bc_count)
 715       extra_data_count = empty_bc_count;  // no need for more
 716     return extra_data_count;
 717   } else {
 718     return 0;
 719   }
 720 }
 721 
 722 // Compute the size of the MethodData* necessary to store
 723 // profiling information about a given method.  Size is in bytes.
 724 int MethodData::compute_allocation_size_in_bytes(methodHandle method) {
 725   int data_size = 0;
 726   BytecodeStream stream(method);
 727   Bytecodes::Code c;
 728   int empty_bc_count = 0;  // number of bytecodes lacking data
 729   while ((c = stream.next()) >= 0) {
 730     int size_in_bytes = compute_data_size(&stream);
 731     data_size += size_in_bytes;
 732     if (size_in_bytes == 0)  empty_bc_count += 1;
 733   }
 734   int object_size = in_bytes(data_offset()) + data_size;
 735 
 736   // Add some extra DataLayout cells (at least one) to track stray traps.
 737   int extra_data_count = compute_extra_data_count(data_size, empty_bc_count);
 738   object_size += extra_data_count * DataLayout::compute_size_in_bytes(0);
 739 
 740   // Add a cell to record information about modified arguments.
 741   int arg_size = method->size_of_parameters();
 742   object_size += DataLayout::compute_size_in_bytes(arg_size+1);
 743 






 744   return object_size;
 745 }
 746 
 747 // Compute the size of the MethodData* necessary to store
 748 // profiling information about a given method.  Size is in words
 749 int MethodData::compute_allocation_size_in_words(methodHandle method) {
 750   int byte_size = compute_allocation_size_in_bytes(method);
 751   int word_size = align_size_up(byte_size, BytesPerWord) / BytesPerWord;
 752   return align_object_size(word_size);
 753 }
 754 
 755 // Initialize an individual data segment.  Returns the size of
 756 // the segment in bytes.
 757 int MethodData::initialize_data(BytecodeStream* stream,
 758                                        int data_index) {
 759 #if defined(COMPILER1) && !defined(COMPILER2)
 760   return 0;
 761 #else
 762   int cell_count = -1;
 763   int tag = DataLayout::no_tag;
 764   DataLayout* data_layout = data_layout_at(data_index);
 765   Bytecodes::Code c = stream->code();
 766   switch (c) {
 767   case Bytecodes::_checkcast:
 768   case Bytecodes::_instanceof:
 769   case Bytecodes::_aastore:
 770     if (TypeProfileCasts) {
 771       cell_count = ReceiverTypeData::static_cell_count();
 772       tag = DataLayout::receiver_type_data_tag;
 773     } else {
 774       cell_count = BitData::static_cell_count();
 775       tag = DataLayout::bit_data_tag;
 776     }
 777     break;
 778   case Bytecodes::_invokespecial:
 779   case Bytecodes::_invokestatic: {
 780     int counter_data_cell_count = CounterData::static_cell_count();
 781     if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
 782         profile_return_for_invoke(stream->method(), stream->bci())) {
 783       cell_count = CallTypeData::compute_cell_count(stream);
 784     } else {
 785       cell_count = counter_data_cell_count;
 786     }
 787     if (cell_count > counter_data_cell_count) {
 788       tag = DataLayout::call_type_data_tag;
 789     } else {
 790       tag = DataLayout::counter_data_tag;
 791     }
 792     break;
 793   }
 794   case Bytecodes::_goto:
 795   case Bytecodes::_goto_w:
 796   case Bytecodes::_jsr:
 797   case Bytecodes::_jsr_w:
 798     cell_count = JumpData::static_cell_count();
 799     tag = DataLayout::jump_data_tag;
 800     break;
 801   case Bytecodes::_invokevirtual:
 802   case Bytecodes::_invokeinterface: {
 803     int virtual_call_data_cell_count = VirtualCallData::static_cell_count();
 804     if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
 805         profile_return_for_invoke(stream->method(), stream->bci())) {
 806       cell_count = VirtualCallTypeData::compute_cell_count(stream);
 807     } else {
 808       cell_count = virtual_call_data_cell_count;
 809     }
 810     if (cell_count > virtual_call_data_cell_count) {
 811       tag = DataLayout::virtual_call_type_data_tag;
 812     } else {
 813       tag = DataLayout::virtual_call_data_tag;
 814     }
 815     break;
 816   }
 817   case Bytecodes::_invokedynamic: {
 818     // %%% should make a type profile for any invokedynamic that takes a ref argument
 819     int counter_data_cell_count = CounterData::static_cell_count();
 820     if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
 821         profile_return_for_invoke(stream->method(), stream->bci())) {
 822       cell_count = CallTypeData::compute_cell_count(stream);
 823     } else {
 824       cell_count = counter_data_cell_count;
 825     }
 826     if (cell_count > counter_data_cell_count) {
 827       tag = DataLayout::call_type_data_tag;
 828     } else {
 829       tag = DataLayout::counter_data_tag;
 830     }
 831     break;
 832   }
 833   case Bytecodes::_ret:
 834     cell_count = RetData::static_cell_count();
 835     tag = DataLayout::ret_data_tag;
 836     break;
 837   case Bytecodes::_ifeq:
 838   case Bytecodes::_ifne:
 839   case Bytecodes::_iflt:
 840   case Bytecodes::_ifge:
 841   case Bytecodes::_ifgt:
 842   case Bytecodes::_ifle:
 843   case Bytecodes::_if_icmpeq:
 844   case Bytecodes::_if_icmpne:
 845   case Bytecodes::_if_icmplt:
 846   case Bytecodes::_if_icmpge:
 847   case Bytecodes::_if_icmpgt:
 848   case Bytecodes::_if_icmple:
 849   case Bytecodes::_if_acmpeq:
 850   case Bytecodes::_if_acmpne:
 851   case Bytecodes::_ifnull:
 852   case Bytecodes::_ifnonnull:
 853     cell_count = BranchData::static_cell_count();
 854     tag = DataLayout::branch_data_tag;
 855     break;
 856   case Bytecodes::_lookupswitch:
 857   case Bytecodes::_tableswitch:
 858     cell_count = MultiBranchData::compute_cell_count(stream);
 859     tag = DataLayout::multi_branch_data_tag;
 860     break;
 861   }
 862   assert(tag == DataLayout::multi_branch_data_tag ||
 863          ((MethodData::profile_arguments() || MethodData::profile_return()) &&
 864           (tag == DataLayout::call_type_data_tag ||
 865            tag == DataLayout::counter_data_tag ||
 866            tag == DataLayout::virtual_call_type_data_tag ||
 867            tag == DataLayout::virtual_call_data_tag)) ||
 868          cell_count == bytecode_cell_count(c), "cell counts must agree");
 869   if (cell_count >= 0) {
 870     assert(tag != DataLayout::no_tag, "bad tag");
 871     assert(bytecode_has_profile(c), "agree w/ BHP");
 872     data_layout->initialize(tag, stream->bci(), cell_count);
 873     return DataLayout::compute_size_in_bytes(cell_count);
 874   } else {
 875     assert(!bytecode_has_profile(c), "agree w/ !BHP");
 876     return 0;
 877   }
 878 #endif
 879 }
 880 
 881 // Get the data at an arbitrary (sort of) data index.
 882 ProfileData* MethodData::data_at(int data_index) const {
 883   if (out_of_bounds(data_index)) {
 884     return NULL;
 885   }
 886   DataLayout* data_layout = data_layout_at(data_index);
 887   return data_layout->data_in();
 888 }
 889 
 890 ProfileData* DataLayout::data_in() {
 891   switch (tag()) {
 892   case DataLayout::no_tag:
 893   default:
 894     ShouldNotReachHere();
 895     return NULL;
 896   case DataLayout::bit_data_tag:
 897     return new BitData(this);
 898   case DataLayout::counter_data_tag:
 899     return new CounterData(this);
 900   case DataLayout::jump_data_tag:
 901     return new JumpData(this);
 902   case DataLayout::receiver_type_data_tag:
 903     return new ReceiverTypeData(this);
 904   case DataLayout::virtual_call_data_tag:
 905     return new VirtualCallData(this);
 906   case DataLayout::ret_data_tag:
 907     return new RetData(this);
 908   case DataLayout::branch_data_tag:
 909     return new BranchData(this);
 910   case DataLayout::multi_branch_data_tag:
 911     return new MultiBranchData(this);
 912   case DataLayout::arg_info_data_tag:
 913     return new ArgInfoData(this);
 914   case DataLayout::call_type_data_tag:
 915     return new CallTypeData(this);
 916   case DataLayout::virtual_call_type_data_tag:
 917     return new VirtualCallTypeData(this);


 918   };
 919 }
 920 
 921 // Iteration over data.
 922 ProfileData* MethodData::next_data(ProfileData* current) const {
 923   int current_index = dp_to_di(current->dp());
 924   int next_index = current_index + current->size_in_bytes();
 925   ProfileData* next = data_at(next_index);
 926   return next;
 927 }
 928 
 929 // Give each of the data entries a chance to perform specific
 930 // data initialization.
 931 void MethodData::post_initialize(BytecodeStream* stream) {
 932   ResourceMark rm;
 933   ProfileData* data;
 934   for (data = first_data(); is_valid(data); data = next_data(data)) {
 935     stream->set_start(data->bci());
 936     stream->next();
 937     data->post_initialize(stream, this);
 938   }



 939 }
 940 
 941 // Initialize the MethodData* corresponding to a given method.
 942 MethodData::MethodData(methodHandle method, int size, TRAPS) {
 943   No_Safepoint_Verifier no_safepoint;  // init function atomic wrt GC
 944   ResourceMark rm;
 945   // Set the method back-pointer.
 946   _method = method();
 947 
 948   init();
 949   set_creation_mileage(mileage_of(method()));
 950 
 951   // Go through the bytecodes and allocate and initialize the
 952   // corresponding data cells.
 953   int data_size = 0;
 954   int empty_bc_count = 0;  // number of bytecodes lacking data
 955   _data[0] = 0;  // apparently not set below.
 956   BytecodeStream stream(method);
 957   Bytecodes::Code c;
 958   while ((c = stream.next()) >= 0) {
 959     int size_in_bytes = initialize_data(&stream, data_size);
 960     data_size += size_in_bytes;
 961     if (size_in_bytes == 0)  empty_bc_count += 1;
 962   }
 963   _data_size = data_size;
 964   int object_size = in_bytes(data_offset()) + data_size;
 965 
 966   // Add some extra DataLayout cells (at least one) to track stray traps.
 967   int extra_data_count = compute_extra_data_count(data_size, empty_bc_count);
 968   int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0);
 969 
 970   // Add a cell to record information about modified arguments.
 971   // Set up _args_modified array after traps cells so that
 972   // the code for traps cells works.
 973   DataLayout *dp = data_layout_at(data_size + extra_size);
 974 
 975   int arg_size = method->size_of_parameters();
 976   dp->initialize(DataLayout::arg_info_data_tag, 0, arg_size+1);
 977 
 978   object_size += extra_size + DataLayout::compute_size_in_bytes(arg_size+1);
















 979 
 980   // Set an initial hint. Don't use set_hint_di() because
 981   // first_di() may be out of bounds if data_size is 0.
 982   // In that situation, _hint_di is never used, but at
 983   // least well-defined.
 984   _hint_di = first_di();
 985 
 986   post_initialize(&stream);
 987 
 988   set_size(object_size);
 989 }
 990 
 991 void MethodData::init() {
 992   _invocation_counter.init();
 993   _backedge_counter.init();
 994   _invocation_counter_start = 0;
 995   _backedge_counter_start = 0;
 996   _num_loops = 0;
 997   _num_blocks = 0;
 998   _highest_comp_level = 0;
 999   _highest_osr_comp_level = 0;
1000   _would_profile = true;
1001 
1002   // Initialize flags and trap history.
1003   _nof_decompiles = 0;
1004   _nof_overflow_recompiles = 0;
1005   _nof_overflow_traps = 0;
1006   clear_escape_info();
1007   assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align");
1008   Copy::zero_to_words((HeapWord*) &_trap_hist,
1009                       sizeof(_trap_hist) / sizeof(HeapWord));
1010 }
1011 
1012 // Get a measure of how much mileage the method has on it.
1013 int MethodData::mileage_of(Method* method) {
1014   int mileage = 0;
1015   if (TieredCompilation) {
1016     mileage = MAX2(method->invocation_count(), method->backedge_count());
1017   } else {
1018     int iic = method->interpreter_invocation_count();
1019     if (mileage < iic)  mileage = iic;
1020     MethodCounters* mcs = method->method_counters();
1021     if (mcs != NULL) {
1022       InvocationCounter* ic = mcs->invocation_counter();
1023       InvocationCounter* bc = mcs->backedge_counter();
1024       int icval = ic->count();
1025       if (ic->carry()) icval += CompileThreshold;
1026       if (mileage < icval)  mileage = icval;
1027       int bcval = bc->count();
1028       if (bc->carry()) bcval += CompileThreshold;
1029       if (mileage < bcval)  mileage = bcval;
1030     }
1031   }
1032   return mileage;
1033 }
1034 
1035 bool MethodData::is_mature() const {
1036   return CompilationPolicy::policy()->is_mature(_method);
1037 }
1038 
1039 // Translate a bci to its corresponding data index (di).
1040 address MethodData::bci_to_dp(int bci) {
1041   ResourceMark rm;
1042   ProfileData* data = data_before(bci);
1043   ProfileData* prev = NULL;
1044   for ( ; is_valid(data); data = next_data(data)) {
1045     if (data->bci() >= bci) {
1046       if (data->bci() == bci)  set_hint_di(dp_to_di(data->dp()));
1047       else if (prev != NULL)   set_hint_di(dp_to_di(prev->dp()));
1048       return data->dp();
1049     }
1050     prev = data;
1051   }
1052   return (address)limit_data_position();
1053 }
1054 
1055 // Translate a bci to its corresponding data, or NULL.
1056 ProfileData* MethodData::bci_to_data(int bci) {
1057   ProfileData* data = data_before(bci);
1058   for ( ; is_valid(data); data = next_data(data)) {
1059     if (data->bci() == bci) {
1060       set_hint_di(dp_to_di(data->dp()));
1061       return data;
1062     } else if (data->bci() > bci) {
1063       break;
1064     }
1065   }
1066   return bci_to_extra_data(bci, false);
1067 }
1068 
1069 // Translate a bci to its corresponding extra data, or NULL.
1070 ProfileData* MethodData::bci_to_extra_data(int bci, bool create_if_missing) {
1071   DataLayout* dp    = extra_data_base();
1072   DataLayout* end   = extra_data_limit();
1073   DataLayout* avail = NULL;
1074   for (; dp < end; dp = next_extra(dp)) {
1075     // No need for "OrderAccess::load_acquire" ops,
1076     // since the data structure is monotonic.
1077     if (dp->tag() == DataLayout::no_tag)  break;
1078     if (dp->tag() == DataLayout::arg_info_data_tag) {
1079       dp = end; // ArgInfoData is at the end of extra data section.
1080       break;
1081     }
1082     if (dp->bci() == bci) {
1083       assert(dp->tag() == DataLayout::bit_data_tag, "sane");
1084       return new BitData(dp);
1085     }
1086   }
1087   if (create_if_missing && dp < end) {
1088     // Allocate this one.  There is no mutual exclusion,
1089     // so two threads could allocate different BCIs to the
1090     // same data layout.  This means these extra data
1091     // records, like most other MDO contents, must not be
1092     // trusted too much.
1093     DataLayout temp;
1094     temp.initialize(DataLayout::bit_data_tag, bci, 0);
1095     dp->release_set_header(temp.header());
1096     assert(dp->tag() == DataLayout::bit_data_tag, "sane");
1097     //NO: assert(dp->bci() == bci, "no concurrent allocation");
1098     return new BitData(dp);
1099   }
1100   return NULL;
1101 }
1102 
1103 ArgInfoData *MethodData::arg_info() {
1104   DataLayout* dp    = extra_data_base();
1105   DataLayout* end   = extra_data_limit();
1106   for (; dp < end; dp = next_extra(dp)) {
1107     if (dp->tag() == DataLayout::arg_info_data_tag)
1108       return new ArgInfoData(dp);
1109   }
1110   return NULL;
1111 }
1112 
1113 // Printing
1114 
1115 #ifndef PRODUCT
1116 
1117 void MethodData::print_on(outputStream* st) const {
1118   assert(is_methodData(), "should be method data");
1119   st->print("method data for ");
1120   method()->print_value_on(st);
1121   st->cr();
1122   print_data_on(st);
1123 }
1124 
1125 #endif //PRODUCT
1126 
1127 void MethodData::print_value_on(outputStream* st) const {
1128   assert(is_methodData(), "should be method data");
1129   st->print("method data for ");
1130   method()->print_value_on(st);
1131 }
1132 
1133 #ifndef PRODUCT
1134 void MethodData::print_data_on(outputStream* st) const {
1135   ResourceMark rm;
1136   ProfileData* data = first_data();



1137   for ( ; is_valid(data); data = next_data(data)) {
1138     st->print("%d", dp_to_di(data->dp()));
1139     st->fill_to(6);
1140     data->print_data_on(st);
1141   }
1142   st->print_cr("--- Extra data:");
1143   DataLayout* dp    = extra_data_base();
1144   DataLayout* end   = extra_data_limit();
1145   for (; dp < end; dp = next_extra(dp)) {
1146     // No need for "OrderAccess::load_acquire" ops,
1147     // since the data structure is monotonic.
1148     if (dp->tag() == DataLayout::no_tag)  continue;
1149     if (dp->tag() == DataLayout::bit_data_tag) {
1150       data = new BitData(dp);
1151     } else {
1152       assert(dp->tag() == DataLayout::arg_info_data_tag, "must be BitData or ArgInfo");
1153       data = new ArgInfoData(dp);
1154       dp = end; // ArgInfoData is at the end of extra data section.
1155     }
1156     st->print("%d", dp_to_di(data->dp()));
1157     st->fill_to(6);
1158     data->print_data_on(st);
1159   }
1160 }
1161 #endif
1162 
1163 #if INCLUDE_SERVICES
1164 // Size Statistics
1165 void MethodData::collect_statistics(KlassSizeStats *sz) const {
1166   int n = sz->count(this);
1167   sz->_method_data_bytes += n;
1168   sz->_method_all_bytes += n;
1169   sz->_rw_bytes += n;
1170 }
1171 #endif // INCLUDE_SERVICES
1172 
1173 // Verification
1174 
1175 void MethodData::verify_on(outputStream* st) {
1176   guarantee(is_methodData(), "object must be method data");
1177   // guarantee(m->is_perm(), "should be in permspace");
1178   this->verify_data_on(st);
1179 }
1180 
1181 void MethodData::verify_data_on(outputStream* st) {
1182   NEEDS_CLEANUP;
1183   // not yet implemented.
1184 }
1185 
1186 bool MethodData::profile_jsr292(methodHandle m, int bci) {
1187   if (m->is_compiled_lambda_form()) {
1188     return true;
1189   }
1190 
1191   Bytecode_invoke inv(m , bci);
1192   return inv.is_invokedynamic() || inv.is_invokehandle();
1193 }
1194 
1195 int MethodData::profile_arguments_flag() {
1196   return TypeProfileLevel % 10;
1197 }
1198 
1199 bool MethodData::profile_arguments() {
1200   return profile_arguments_flag() > no_type_profile && profile_arguments_flag() <= type_profile_all;
1201 }
1202 
1203 bool MethodData::profile_arguments_jsr292_only() {
1204   return profile_arguments_flag() == type_profile_jsr292;
1205 }
1206 
1207 bool MethodData::profile_all_arguments() {
1208   return profile_arguments_flag() == type_profile_all;
1209 }
1210 
1211 bool MethodData::profile_arguments_for_invoke(methodHandle m, int bci) {
1212   if (!profile_arguments()) {
1213     return false;
1214   }
1215 
1216   if (profile_all_arguments()) {
1217     return true;
1218   }
1219 
1220   assert(profile_arguments_jsr292_only(), "inconsistent");
1221   return profile_jsr292(m, bci);
1222 }
1223 
1224 int MethodData::profile_return_flag() {
1225   return TypeProfileLevel / 10;
1226 }
1227 
1228 bool MethodData::profile_return() {
1229   return profile_return_flag() > no_type_profile && profile_return_flag() <= type_profile_all;
1230 }
1231 
1232 bool MethodData::profile_return_jsr292_only() {
1233   return profile_return_flag() == type_profile_jsr292;
1234 }
1235 
1236 bool MethodData::profile_all_return() {
1237   return profile_return_flag() == type_profile_all;
1238 }
1239 
1240 bool MethodData::profile_return_for_invoke(methodHandle m, int bci) {
1241   if (!profile_return()) {
1242     return false;
1243   }
1244 
1245   if (profile_all_return()) {
1246     return true;
1247   }
1248 
1249   assert(profile_return_jsr292_only(), "inconsistent");
1250   return profile_jsr292(m, bci);





























1251 }
--- EOF ---