src/share/vm/ci/ciMethodData.cpp

Wed, 27 Apr 2016 01:25:04 +0800

author
aoqi
date
Wed, 27 Apr 2016 01:25:04 +0800
changeset 0
f90c822e73f8
child 6876
710a3c8b516e
permissions
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http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 *
aoqi@0 23 */
aoqi@0 24
aoqi@0 25 #include "precompiled.hpp"
aoqi@0 26 #include "ci/ciMetadata.hpp"
aoqi@0 27 #include "ci/ciMethodData.hpp"
aoqi@0 28 #include "ci/ciReplay.hpp"
aoqi@0 29 #include "ci/ciUtilities.hpp"
aoqi@0 30 #include "memory/allocation.inline.hpp"
aoqi@0 31 #include "memory/resourceArea.hpp"
aoqi@0 32 #include "runtime/deoptimization.hpp"
aoqi@0 33 #include "utilities/copy.hpp"
aoqi@0 34
aoqi@0 35 // ciMethodData
aoqi@0 36
aoqi@0 37 // ------------------------------------------------------------------
aoqi@0 38 // ciMethodData::ciMethodData
aoqi@0 39 //
aoqi@0 40 ciMethodData::ciMethodData(MethodData* md) : ciMetadata(md) {
aoqi@0 41 assert(md != NULL, "no null method data");
aoqi@0 42 Copy::zero_to_words((HeapWord*) &_orig, sizeof(_orig) / sizeof(HeapWord));
aoqi@0 43 _data = NULL;
aoqi@0 44 _data_size = 0;
aoqi@0 45 _extra_data_size = 0;
aoqi@0 46 _current_mileage = 0;
aoqi@0 47 _invocation_counter = 0;
aoqi@0 48 _backedge_counter = 0;
aoqi@0 49 _state = empty_state;
aoqi@0 50 _saw_free_extra_data = false;
aoqi@0 51 // Set an initial hint. Don't use set_hint_di() because
aoqi@0 52 // first_di() may be out of bounds if data_size is 0.
aoqi@0 53 _hint_di = first_di();
aoqi@0 54 // Initialize the escape information (to "don't know.");
aoqi@0 55 _eflags = _arg_local = _arg_stack = _arg_returned = 0;
aoqi@0 56 _parameters = NULL;
aoqi@0 57 }
aoqi@0 58
aoqi@0 59 // ------------------------------------------------------------------
aoqi@0 60 // ciMethodData::ciMethodData
aoqi@0 61 //
aoqi@0 62 // No MethodData*.
aoqi@0 63 ciMethodData::ciMethodData() : ciMetadata(NULL) {
aoqi@0 64 Copy::zero_to_words((HeapWord*) &_orig, sizeof(_orig) / sizeof(HeapWord));
aoqi@0 65 _data = NULL;
aoqi@0 66 _data_size = 0;
aoqi@0 67 _extra_data_size = 0;
aoqi@0 68 _current_mileage = 0;
aoqi@0 69 _invocation_counter = 0;
aoqi@0 70 _backedge_counter = 0;
aoqi@0 71 _state = empty_state;
aoqi@0 72 _saw_free_extra_data = false;
aoqi@0 73 // Set an initial hint. Don't use set_hint_di() because
aoqi@0 74 // first_di() may be out of bounds if data_size is 0.
aoqi@0 75 _hint_di = first_di();
aoqi@0 76 // Initialize the escape information (to "don't know.");
aoqi@0 77 _eflags = _arg_local = _arg_stack = _arg_returned = 0;
aoqi@0 78 _parameters = NULL;
aoqi@0 79 }
aoqi@0 80
aoqi@0 81 void ciMethodData::load_extra_data() {
aoqi@0 82 MethodData* mdo = get_MethodData();
aoqi@0 83
aoqi@0 84 // speculative trap entries also hold a pointer to a Method so need to be translated
aoqi@0 85 DataLayout* dp_src = mdo->extra_data_base();
aoqi@0 86 DataLayout* end_src = mdo->extra_data_limit();
aoqi@0 87 DataLayout* dp_dst = extra_data_base();
aoqi@0 88 for (;; dp_src = MethodData::next_extra(dp_src), dp_dst = MethodData::next_extra(dp_dst)) {
aoqi@0 89 assert(dp_src < end_src, "moved past end of extra data");
aoqi@0 90 // New traps in the MDO can be added as we translate the copy so
aoqi@0 91 // look at the entries in the copy.
aoqi@0 92 switch(dp_dst->tag()) {
aoqi@0 93 case DataLayout::speculative_trap_data_tag: {
aoqi@0 94 ciSpeculativeTrapData* data_dst = new ciSpeculativeTrapData(dp_dst);
aoqi@0 95 SpeculativeTrapData* data_src = new SpeculativeTrapData(dp_src);
aoqi@0 96 data_dst->translate_from(data_src);
aoqi@0 97 break;
aoqi@0 98 }
aoqi@0 99 case DataLayout::bit_data_tag:
aoqi@0 100 break;
aoqi@0 101 case DataLayout::no_tag:
aoqi@0 102 case DataLayout::arg_info_data_tag:
aoqi@0 103 // An empty slot or ArgInfoData entry marks the end of the trap data
aoqi@0 104 return;
aoqi@0 105 default:
aoqi@0 106 fatal(err_msg("bad tag = %d", dp_dst->tag()));
aoqi@0 107 }
aoqi@0 108 }
aoqi@0 109 }
aoqi@0 110
aoqi@0 111 void ciMethodData::load_data() {
aoqi@0 112 MethodData* mdo = get_MethodData();
aoqi@0 113 if (mdo == NULL) {
aoqi@0 114 return;
aoqi@0 115 }
aoqi@0 116
aoqi@0 117 // To do: don't copy the data if it is not "ripe" -- require a minimum #
aoqi@0 118 // of invocations.
aoqi@0 119
aoqi@0 120 // Snapshot the data -- actually, take an approximate snapshot of
aoqi@0 121 // the data. Any concurrently executing threads may be changing the
aoqi@0 122 // data as we copy it.
aoqi@0 123 Copy::disjoint_words((HeapWord*) mdo,
aoqi@0 124 (HeapWord*) &_orig,
aoqi@0 125 sizeof(_orig) / HeapWordSize);
aoqi@0 126 Arena* arena = CURRENT_ENV->arena();
aoqi@0 127 _data_size = mdo->data_size();
aoqi@0 128 _extra_data_size = mdo->extra_data_size();
aoqi@0 129 int total_size = _data_size + _extra_data_size;
aoqi@0 130 _data = (intptr_t *) arena->Amalloc(total_size);
aoqi@0 131 Copy::disjoint_words((HeapWord*) mdo->data_base(), (HeapWord*) _data, total_size / HeapWordSize);
aoqi@0 132
aoqi@0 133 // Traverse the profile data, translating any oops into their
aoqi@0 134 // ci equivalents.
aoqi@0 135 ResourceMark rm;
aoqi@0 136 ciProfileData* ci_data = first_data();
aoqi@0 137 ProfileData* data = mdo->first_data();
aoqi@0 138 while (is_valid(ci_data)) {
aoqi@0 139 ci_data->translate_from(data);
aoqi@0 140 ci_data = next_data(ci_data);
aoqi@0 141 data = mdo->next_data(data);
aoqi@0 142 }
aoqi@0 143 if (mdo->parameters_type_data() != NULL) {
aoqi@0 144 _parameters = data_layout_at(mdo->parameters_type_data_di());
aoqi@0 145 ciParametersTypeData* parameters = new ciParametersTypeData(_parameters);
aoqi@0 146 parameters->translate_from(mdo->parameters_type_data());
aoqi@0 147 }
aoqi@0 148
aoqi@0 149 load_extra_data();
aoqi@0 150
aoqi@0 151 // Note: Extra data are all BitData, and do not need translation.
aoqi@0 152 _current_mileage = MethodData::mileage_of(mdo->method());
aoqi@0 153 _invocation_counter = mdo->invocation_count();
aoqi@0 154 _backedge_counter = mdo->backedge_count();
aoqi@0 155 _state = mdo->is_mature()? mature_state: immature_state;
aoqi@0 156
aoqi@0 157 _eflags = mdo->eflags();
aoqi@0 158 _arg_local = mdo->arg_local();
aoqi@0 159 _arg_stack = mdo->arg_stack();
aoqi@0 160 _arg_returned = mdo->arg_returned();
aoqi@0 161 #ifndef PRODUCT
aoqi@0 162 if (ReplayCompiles) {
aoqi@0 163 ciReplay::initialize(this);
aoqi@0 164 }
aoqi@0 165 #endif
aoqi@0 166 }
aoqi@0 167
aoqi@0 168 void ciReceiverTypeData::translate_receiver_data_from(const ProfileData* data) {
aoqi@0 169 for (uint row = 0; row < row_limit(); row++) {
aoqi@0 170 Klass* k = data->as_ReceiverTypeData()->receiver(row);
aoqi@0 171 if (k != NULL) {
aoqi@0 172 ciKlass* klass = CURRENT_ENV->get_klass(k);
aoqi@0 173 set_receiver(row, klass);
aoqi@0 174 }
aoqi@0 175 }
aoqi@0 176 }
aoqi@0 177
aoqi@0 178
aoqi@0 179 void ciTypeStackSlotEntries::translate_type_data_from(const TypeStackSlotEntries* entries) {
aoqi@0 180 for (int i = 0; i < _number_of_entries; i++) {
aoqi@0 181 intptr_t k = entries->type(i);
aoqi@0 182 TypeStackSlotEntries::set_type(i, translate_klass(k));
aoqi@0 183 }
aoqi@0 184 }
aoqi@0 185
aoqi@0 186 void ciReturnTypeEntry::translate_type_data_from(const ReturnTypeEntry* ret) {
aoqi@0 187 intptr_t k = ret->type();
aoqi@0 188 set_type(translate_klass(k));
aoqi@0 189 }
aoqi@0 190
aoqi@0 191 void ciSpeculativeTrapData::translate_from(const ProfileData* data) {
aoqi@0 192 Method* m = data->as_SpeculativeTrapData()->method();
aoqi@0 193 ciMethod* ci_m = CURRENT_ENV->get_method(m);
aoqi@0 194 set_method(ci_m);
aoqi@0 195 }
aoqi@0 196
aoqi@0 197 // Get the data at an arbitrary (sort of) data index.
aoqi@0 198 ciProfileData* ciMethodData::data_at(int data_index) {
aoqi@0 199 if (out_of_bounds(data_index)) {
aoqi@0 200 return NULL;
aoqi@0 201 }
aoqi@0 202 DataLayout* data_layout = data_layout_at(data_index);
aoqi@0 203
aoqi@0 204 switch (data_layout->tag()) {
aoqi@0 205 case DataLayout::no_tag:
aoqi@0 206 default:
aoqi@0 207 ShouldNotReachHere();
aoqi@0 208 return NULL;
aoqi@0 209 case DataLayout::bit_data_tag:
aoqi@0 210 return new ciBitData(data_layout);
aoqi@0 211 case DataLayout::counter_data_tag:
aoqi@0 212 return new ciCounterData(data_layout);
aoqi@0 213 case DataLayout::jump_data_tag:
aoqi@0 214 return new ciJumpData(data_layout);
aoqi@0 215 case DataLayout::receiver_type_data_tag:
aoqi@0 216 return new ciReceiverTypeData(data_layout);
aoqi@0 217 case DataLayout::virtual_call_data_tag:
aoqi@0 218 return new ciVirtualCallData(data_layout);
aoqi@0 219 case DataLayout::ret_data_tag:
aoqi@0 220 return new ciRetData(data_layout);
aoqi@0 221 case DataLayout::branch_data_tag:
aoqi@0 222 return new ciBranchData(data_layout);
aoqi@0 223 case DataLayout::multi_branch_data_tag:
aoqi@0 224 return new ciMultiBranchData(data_layout);
aoqi@0 225 case DataLayout::arg_info_data_tag:
aoqi@0 226 return new ciArgInfoData(data_layout);
aoqi@0 227 case DataLayout::call_type_data_tag:
aoqi@0 228 return new ciCallTypeData(data_layout);
aoqi@0 229 case DataLayout::virtual_call_type_data_tag:
aoqi@0 230 return new ciVirtualCallTypeData(data_layout);
aoqi@0 231 case DataLayout::parameters_type_data_tag:
aoqi@0 232 return new ciParametersTypeData(data_layout);
aoqi@0 233 };
aoqi@0 234 }
aoqi@0 235
aoqi@0 236 // Iteration over data.
aoqi@0 237 ciProfileData* ciMethodData::next_data(ciProfileData* current) {
aoqi@0 238 int current_index = dp_to_di(current->dp());
aoqi@0 239 int next_index = current_index + current->size_in_bytes();
aoqi@0 240 ciProfileData* next = data_at(next_index);
aoqi@0 241 return next;
aoqi@0 242 }
aoqi@0 243
aoqi@0 244 ciProfileData* ciMethodData::bci_to_extra_data(int bci, ciMethod* m, bool& two_free_slots) {
aoqi@0 245 // bci_to_extra_data(bci) ...
aoqi@0 246 DataLayout* dp = data_layout_at(data_size());
aoqi@0 247 DataLayout* end = data_layout_at(data_size() + extra_data_size());
aoqi@0 248 two_free_slots = false;
aoqi@0 249 for (;dp < end; dp = MethodData::next_extra(dp)) {
aoqi@0 250 switch(dp->tag()) {
aoqi@0 251 case DataLayout::no_tag:
aoqi@0 252 _saw_free_extra_data = true; // observed an empty slot (common case)
aoqi@0 253 two_free_slots = (MethodData::next_extra(dp)->tag() == DataLayout::no_tag);
aoqi@0 254 return NULL;
aoqi@0 255 case DataLayout::arg_info_data_tag:
aoqi@0 256 return NULL; // ArgInfoData is at the end of extra data section.
aoqi@0 257 case DataLayout::bit_data_tag:
aoqi@0 258 if (m == NULL && dp->bci() == bci) {
aoqi@0 259 return new ciBitData(dp);
aoqi@0 260 }
aoqi@0 261 break;
aoqi@0 262 case DataLayout::speculative_trap_data_tag: {
aoqi@0 263 ciSpeculativeTrapData* data = new ciSpeculativeTrapData(dp);
aoqi@0 264 // data->method() might be null if the MDO is snapshotted
aoqi@0 265 // concurrently with a trap
aoqi@0 266 if (m != NULL && data->method() == m && dp->bci() == bci) {
aoqi@0 267 return data;
aoqi@0 268 }
aoqi@0 269 break;
aoqi@0 270 }
aoqi@0 271 default:
aoqi@0 272 fatal(err_msg("bad tag = %d", dp->tag()));
aoqi@0 273 }
aoqi@0 274 }
aoqi@0 275 return NULL;
aoqi@0 276 }
aoqi@0 277
aoqi@0 278 // Translate a bci to its corresponding data, or NULL.
aoqi@0 279 ciProfileData* ciMethodData::bci_to_data(int bci, ciMethod* m) {
aoqi@0 280 // If m is not NULL we look for a SpeculativeTrapData entry
aoqi@0 281 if (m == NULL) {
aoqi@0 282 ciProfileData* data = data_before(bci);
aoqi@0 283 for ( ; is_valid(data); data = next_data(data)) {
aoqi@0 284 if (data->bci() == bci) {
aoqi@0 285 set_hint_di(dp_to_di(data->dp()));
aoqi@0 286 return data;
aoqi@0 287 } else if (data->bci() > bci) {
aoqi@0 288 break;
aoqi@0 289 }
aoqi@0 290 }
aoqi@0 291 }
aoqi@0 292 bool two_free_slots = false;
aoqi@0 293 ciProfileData* result = bci_to_extra_data(bci, m, two_free_slots);
aoqi@0 294 if (result != NULL) {
aoqi@0 295 return result;
aoqi@0 296 }
aoqi@0 297 if (m != NULL && !two_free_slots) {
aoqi@0 298 // We were looking for a SpeculativeTrapData entry we didn't
aoqi@0 299 // find. Room is not available for more SpeculativeTrapData
aoqi@0 300 // entries, look in the non SpeculativeTrapData entries.
aoqi@0 301 return bci_to_data(bci, NULL);
aoqi@0 302 }
aoqi@0 303 return NULL;
aoqi@0 304 }
aoqi@0 305
aoqi@0 306 // Conservatively decode the trap_state of a ciProfileData.
aoqi@0 307 int ciMethodData::has_trap_at(ciProfileData* data, int reason) {
aoqi@0 308 typedef Deoptimization::DeoptReason DR_t;
aoqi@0 309 int per_bc_reason
aoqi@0 310 = Deoptimization::reason_recorded_per_bytecode_if_any((DR_t) reason);
aoqi@0 311 if (trap_count(reason) == 0) {
aoqi@0 312 // Impossible for this trap to have occurred, regardless of trap_state.
aoqi@0 313 // Note: This happens if the MDO is empty.
aoqi@0 314 return 0;
aoqi@0 315 } else if (per_bc_reason == Deoptimization::Reason_none) {
aoqi@0 316 // We cannot conclude anything; a trap happened somewhere, maybe here.
aoqi@0 317 return -1;
aoqi@0 318 } else if (data == NULL) {
aoqi@0 319 // No profile here, not even an extra_data record allocated on the fly.
aoqi@0 320 // If there are empty extra_data records, and there had been a trap,
aoqi@0 321 // there would have been a non-null data pointer. If there are no
aoqi@0 322 // free extra_data records, we must return a conservative -1.
aoqi@0 323 if (_saw_free_extra_data)
aoqi@0 324 return 0; // Q.E.D.
aoqi@0 325 else
aoqi@0 326 return -1; // bail with a conservative answer
aoqi@0 327 } else {
aoqi@0 328 return Deoptimization::trap_state_has_reason(data->trap_state(), per_bc_reason);
aoqi@0 329 }
aoqi@0 330 }
aoqi@0 331
aoqi@0 332 int ciMethodData::trap_recompiled_at(ciProfileData* data) {
aoqi@0 333 if (data == NULL) {
aoqi@0 334 return (_saw_free_extra_data? 0: -1); // (see previous method)
aoqi@0 335 } else {
aoqi@0 336 return Deoptimization::trap_state_is_recompiled(data->trap_state())? 1: 0;
aoqi@0 337 }
aoqi@0 338 }
aoqi@0 339
aoqi@0 340 void ciMethodData::clear_escape_info() {
aoqi@0 341 VM_ENTRY_MARK;
aoqi@0 342 MethodData* mdo = get_MethodData();
aoqi@0 343 if (mdo != NULL) {
aoqi@0 344 mdo->clear_escape_info();
aoqi@0 345 ArgInfoData *aid = arg_info();
aoqi@0 346 int arg_count = (aid == NULL) ? 0 : aid->number_of_args();
aoqi@0 347 for (int i = 0; i < arg_count; i++) {
aoqi@0 348 set_arg_modified(i, 0);
aoqi@0 349 }
aoqi@0 350 }
aoqi@0 351 _eflags = _arg_local = _arg_stack = _arg_returned = 0;
aoqi@0 352 }
aoqi@0 353
aoqi@0 354 // copy our escape info to the MethodData* if it exists
aoqi@0 355 void ciMethodData::update_escape_info() {
aoqi@0 356 VM_ENTRY_MARK;
aoqi@0 357 MethodData* mdo = get_MethodData();
aoqi@0 358 if ( mdo != NULL) {
aoqi@0 359 mdo->set_eflags(_eflags);
aoqi@0 360 mdo->set_arg_local(_arg_local);
aoqi@0 361 mdo->set_arg_stack(_arg_stack);
aoqi@0 362 mdo->set_arg_returned(_arg_returned);
aoqi@0 363 int arg_count = mdo->method()->size_of_parameters();
aoqi@0 364 for (int i = 0; i < arg_count; i++) {
aoqi@0 365 mdo->set_arg_modified(i, arg_modified(i));
aoqi@0 366 }
aoqi@0 367 }
aoqi@0 368 }
aoqi@0 369
aoqi@0 370 void ciMethodData::set_compilation_stats(short loops, short blocks) {
aoqi@0 371 VM_ENTRY_MARK;
aoqi@0 372 MethodData* mdo = get_MethodData();
aoqi@0 373 if (mdo != NULL) {
aoqi@0 374 mdo->set_num_loops(loops);
aoqi@0 375 mdo->set_num_blocks(blocks);
aoqi@0 376 }
aoqi@0 377 }
aoqi@0 378
aoqi@0 379 void ciMethodData::set_would_profile(bool p) {
aoqi@0 380 VM_ENTRY_MARK;
aoqi@0 381 MethodData* mdo = get_MethodData();
aoqi@0 382 if (mdo != NULL) {
aoqi@0 383 mdo->set_would_profile(p);
aoqi@0 384 }
aoqi@0 385 }
aoqi@0 386
aoqi@0 387 void ciMethodData::set_argument_type(int bci, int i, ciKlass* k) {
aoqi@0 388 VM_ENTRY_MARK;
aoqi@0 389 MethodData* mdo = get_MethodData();
aoqi@0 390 if (mdo != NULL) {
aoqi@0 391 ProfileData* data = mdo->bci_to_data(bci);
aoqi@0 392 if (data->is_CallTypeData()) {
aoqi@0 393 data->as_CallTypeData()->set_argument_type(i, k->get_Klass());
aoqi@0 394 } else {
aoqi@0 395 assert(data->is_VirtualCallTypeData(), "no arguments!");
aoqi@0 396 data->as_VirtualCallTypeData()->set_argument_type(i, k->get_Klass());
aoqi@0 397 }
aoqi@0 398 }
aoqi@0 399 }
aoqi@0 400
aoqi@0 401 void ciMethodData::set_parameter_type(int i, ciKlass* k) {
aoqi@0 402 VM_ENTRY_MARK;
aoqi@0 403 MethodData* mdo = get_MethodData();
aoqi@0 404 if (mdo != NULL) {
aoqi@0 405 mdo->parameters_type_data()->set_type(i, k->get_Klass());
aoqi@0 406 }
aoqi@0 407 }
aoqi@0 408
aoqi@0 409 void ciMethodData::set_return_type(int bci, ciKlass* k) {
aoqi@0 410 VM_ENTRY_MARK;
aoqi@0 411 MethodData* mdo = get_MethodData();
aoqi@0 412 if (mdo != NULL) {
aoqi@0 413 ProfileData* data = mdo->bci_to_data(bci);
aoqi@0 414 if (data->is_CallTypeData()) {
aoqi@0 415 data->as_CallTypeData()->set_return_type(k->get_Klass());
aoqi@0 416 } else {
aoqi@0 417 assert(data->is_VirtualCallTypeData(), "no arguments!");
aoqi@0 418 data->as_VirtualCallTypeData()->set_return_type(k->get_Klass());
aoqi@0 419 }
aoqi@0 420 }
aoqi@0 421 }
aoqi@0 422
aoqi@0 423 bool ciMethodData::has_escape_info() {
aoqi@0 424 return eflag_set(MethodData::estimated);
aoqi@0 425 }
aoqi@0 426
aoqi@0 427 void ciMethodData::set_eflag(MethodData::EscapeFlag f) {
aoqi@0 428 set_bits(_eflags, f);
aoqi@0 429 }
aoqi@0 430
aoqi@0 431 void ciMethodData::clear_eflag(MethodData::EscapeFlag f) {
aoqi@0 432 clear_bits(_eflags, f);
aoqi@0 433 }
aoqi@0 434
aoqi@0 435 bool ciMethodData::eflag_set(MethodData::EscapeFlag f) const {
aoqi@0 436 return mask_bits(_eflags, f) != 0;
aoqi@0 437 }
aoqi@0 438
aoqi@0 439 void ciMethodData::set_arg_local(int i) {
aoqi@0 440 set_nth_bit(_arg_local, i);
aoqi@0 441 }
aoqi@0 442
aoqi@0 443 void ciMethodData::set_arg_stack(int i) {
aoqi@0 444 set_nth_bit(_arg_stack, i);
aoqi@0 445 }
aoqi@0 446
aoqi@0 447 void ciMethodData::set_arg_returned(int i) {
aoqi@0 448 set_nth_bit(_arg_returned, i);
aoqi@0 449 }
aoqi@0 450
aoqi@0 451 void ciMethodData::set_arg_modified(int arg, uint val) {
aoqi@0 452 ArgInfoData *aid = arg_info();
aoqi@0 453 if (aid == NULL)
aoqi@0 454 return;
aoqi@0 455 assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
aoqi@0 456 aid->set_arg_modified(arg, val);
aoqi@0 457 }
aoqi@0 458
aoqi@0 459 bool ciMethodData::is_arg_local(int i) const {
aoqi@0 460 return is_set_nth_bit(_arg_local, i);
aoqi@0 461 }
aoqi@0 462
aoqi@0 463 bool ciMethodData::is_arg_stack(int i) const {
aoqi@0 464 return is_set_nth_bit(_arg_stack, i);
aoqi@0 465 }
aoqi@0 466
aoqi@0 467 bool ciMethodData::is_arg_returned(int i) const {
aoqi@0 468 return is_set_nth_bit(_arg_returned, i);
aoqi@0 469 }
aoqi@0 470
aoqi@0 471 uint ciMethodData::arg_modified(int arg) const {
aoqi@0 472 ArgInfoData *aid = arg_info();
aoqi@0 473 if (aid == NULL)
aoqi@0 474 return 0;
aoqi@0 475 assert(arg >= 0 && arg < aid->number_of_args(), "valid argument number");
aoqi@0 476 return aid->arg_modified(arg);
aoqi@0 477 }
aoqi@0 478
aoqi@0 479 ByteSize ciMethodData::offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) {
aoqi@0 480 // Get offset within MethodData* of the data array
aoqi@0 481 ByteSize data_offset = MethodData::data_offset();
aoqi@0 482
aoqi@0 483 // Get cell offset of the ProfileData within data array
aoqi@0 484 int cell_offset = dp_to_di(data->dp());
aoqi@0 485
aoqi@0 486 // Add in counter_offset, the # of bytes into the ProfileData of counter or flag
aoqi@0 487 int offset = in_bytes(data_offset) + cell_offset + in_bytes(slot_offset_in_data);
aoqi@0 488
aoqi@0 489 return in_ByteSize(offset);
aoqi@0 490 }
aoqi@0 491
aoqi@0 492 ciArgInfoData *ciMethodData::arg_info() const {
aoqi@0 493 // Should be last, have to skip all traps.
aoqi@0 494 DataLayout* dp = data_layout_at(data_size());
aoqi@0 495 DataLayout* end = data_layout_at(data_size() + extra_data_size());
aoqi@0 496 for (; dp < end; dp = MethodData::next_extra(dp)) {
aoqi@0 497 if (dp->tag() == DataLayout::arg_info_data_tag)
aoqi@0 498 return new ciArgInfoData(dp);
aoqi@0 499 }
aoqi@0 500 return NULL;
aoqi@0 501 }
aoqi@0 502
aoqi@0 503
aoqi@0 504 // Implementation of the print method.
aoqi@0 505 void ciMethodData::print_impl(outputStream* st) {
aoqi@0 506 ciMetadata::print_impl(st);
aoqi@0 507 }
aoqi@0 508
aoqi@0 509 void ciMethodData::dump_replay_data(outputStream* out) {
aoqi@0 510 ResourceMark rm;
aoqi@0 511 MethodData* mdo = get_MethodData();
aoqi@0 512 Method* method = mdo->method();
aoqi@0 513 Klass* holder = method->method_holder();
aoqi@0 514 out->print("ciMethodData %s %s %s %d %d",
aoqi@0 515 holder->name()->as_quoted_ascii(),
aoqi@0 516 method->name()->as_quoted_ascii(),
aoqi@0 517 method->signature()->as_quoted_ascii(),
aoqi@0 518 _state,
aoqi@0 519 current_mileage());
aoqi@0 520
aoqi@0 521 // dump the contents of the MDO header as raw data
aoqi@0 522 unsigned char* orig = (unsigned char*)&_orig;
aoqi@0 523 int length = sizeof(_orig);
aoqi@0 524 out->print(" orig %d", length);
aoqi@0 525 for (int i = 0; i < length; i++) {
aoqi@0 526 out->print(" %d", orig[i]);
aoqi@0 527 }
aoqi@0 528
aoqi@0 529 // dump the MDO data as raw data
aoqi@0 530 int elements = data_size() / sizeof(intptr_t);
aoqi@0 531 out->print(" data %d", elements);
aoqi@0 532 for (int i = 0; i < elements; i++) {
aoqi@0 533 // We could use INTPTR_FORMAT here but that's a zero justified
aoqi@0 534 // which makes comparing it with the SA version of this output
aoqi@0 535 // harder.
aoqi@0 536 #ifdef _LP64
aoqi@0 537 out->print(" 0x%" FORMAT64_MODIFIER "x", data()[i]);
aoqi@0 538 #else
aoqi@0 539 out->print(" 0x%x", data()[i]);
aoqi@0 540 #endif
aoqi@0 541 }
aoqi@0 542
aoqi@0 543 // The MDO contained oop references as ciObjects, so scan for those
aoqi@0 544 // and emit pairs of offset and klass name so that they can be
aoqi@0 545 // reconstructed at runtime. The first round counts the number of
aoqi@0 546 // oop references and the second actually emits them.
aoqi@0 547 int count = 0;
aoqi@0 548 for (int round = 0; round < 2; round++) {
aoqi@0 549 if (round == 1) out->print(" oops %d", count);
aoqi@0 550 ProfileData* pdata = first_data();
aoqi@0 551 for ( ; is_valid(pdata); pdata = next_data(pdata)) {
aoqi@0 552 if (pdata->is_ReceiverTypeData()) {
aoqi@0 553 ciReceiverTypeData* vdata = (ciReceiverTypeData*)pdata;
aoqi@0 554 for (uint i = 0; i < vdata->row_limit(); i++) {
aoqi@0 555 ciKlass* k = vdata->receiver(i);
aoqi@0 556 if (k != NULL) {
aoqi@0 557 if (round == 0) {
aoqi@0 558 count++;
aoqi@0 559 } else {
aoqi@0 560 out->print(" %d %s", (int)(dp_to_di(vdata->dp() + in_bytes(vdata->receiver_offset(i))) / sizeof(intptr_t)), k->name()->as_quoted_ascii());
aoqi@0 561 }
aoqi@0 562 }
aoqi@0 563 }
aoqi@0 564 } else if (pdata->is_VirtualCallData()) {
aoqi@0 565 ciVirtualCallData* vdata = (ciVirtualCallData*)pdata;
aoqi@0 566 for (uint i = 0; i < vdata->row_limit(); i++) {
aoqi@0 567 ciKlass* k = vdata->receiver(i);
aoqi@0 568 if (k != NULL) {
aoqi@0 569 if (round == 0) {
aoqi@0 570 count++;
aoqi@0 571 } else {
aoqi@0 572 out->print(" %d %s", (int)(dp_to_di(vdata->dp() + in_bytes(vdata->receiver_offset(i))) / sizeof(intptr_t)), k->name()->as_quoted_ascii());
aoqi@0 573 }
aoqi@0 574 }
aoqi@0 575 }
aoqi@0 576 }
aoqi@0 577 }
aoqi@0 578 }
aoqi@0 579 out->cr();
aoqi@0 580 }
aoqi@0 581
aoqi@0 582 #ifndef PRODUCT
aoqi@0 583 void ciMethodData::print() {
aoqi@0 584 print_data_on(tty);
aoqi@0 585 }
aoqi@0 586
aoqi@0 587 void ciMethodData::print_data_on(outputStream* st) {
aoqi@0 588 ResourceMark rm;
aoqi@0 589 ciProfileData* data;
aoqi@0 590 for (data = first_data(); is_valid(data); data = next_data(data)) {
aoqi@0 591 st->print("%d", dp_to_di(data->dp()));
aoqi@0 592 st->fill_to(6);
aoqi@0 593 data->print_data_on(st);
aoqi@0 594 }
aoqi@0 595 st->print_cr("--- Extra data:");
aoqi@0 596 DataLayout* dp = data_layout_at(data_size());
aoqi@0 597 DataLayout* end = data_layout_at(data_size() + extra_data_size());
aoqi@0 598 for (;; dp = MethodData::next_extra(dp)) {
aoqi@0 599 assert(dp < end, "moved past end of extra data");
aoqi@0 600 switch (dp->tag()) {
aoqi@0 601 case DataLayout::no_tag:
aoqi@0 602 continue;
aoqi@0 603 case DataLayout::bit_data_tag:
aoqi@0 604 data = new BitData(dp);
aoqi@0 605 break;
aoqi@0 606 case DataLayout::arg_info_data_tag:
aoqi@0 607 data = new ciArgInfoData(dp);
aoqi@0 608 dp = end; // ArgInfoData is at the end of extra data section.
aoqi@0 609 break;
aoqi@0 610 default:
aoqi@0 611 fatal(err_msg("unexpected tag %d", dp->tag()));
aoqi@0 612 }
aoqi@0 613 st->print("%d", dp_to_di(data->dp()));
aoqi@0 614 st->fill_to(6);
aoqi@0 615 data->print_data_on(st);
aoqi@0 616 if (dp >= end) return;
aoqi@0 617 }
aoqi@0 618 }
aoqi@0 619
aoqi@0 620 void ciTypeEntries::print_ciklass(outputStream* st, intptr_t k) {
aoqi@0 621 if (TypeEntries::is_type_none(k)) {
aoqi@0 622 st->print("none");
aoqi@0 623 } else if (TypeEntries::is_type_unknown(k)) {
aoqi@0 624 st->print("unknown");
aoqi@0 625 } else {
aoqi@0 626 valid_ciklass(k)->print_name_on(st);
aoqi@0 627 }
aoqi@0 628 if (TypeEntries::was_null_seen(k)) {
aoqi@0 629 st->print(" (null seen)");
aoqi@0 630 }
aoqi@0 631 }
aoqi@0 632
aoqi@0 633 void ciTypeStackSlotEntries::print_data_on(outputStream* st) const {
aoqi@0 634 for (int i = 0; i < _number_of_entries; i++) {
aoqi@0 635 _pd->tab(st);
aoqi@0 636 st->print("%d: stack (%u) ", i, stack_slot(i));
aoqi@0 637 print_ciklass(st, type(i));
aoqi@0 638 st->cr();
aoqi@0 639 }
aoqi@0 640 }
aoqi@0 641
aoqi@0 642 void ciReturnTypeEntry::print_data_on(outputStream* st) const {
aoqi@0 643 _pd->tab(st);
aoqi@0 644 st->print("ret ");
aoqi@0 645 print_ciklass(st, type());
aoqi@0 646 st->cr();
aoqi@0 647 }
aoqi@0 648
aoqi@0 649 void ciCallTypeData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 650 print_shared(st, "ciCallTypeData", extra);
aoqi@0 651 if (has_arguments()) {
aoqi@0 652 tab(st, true);
aoqi@0 653 st->print("argument types");
aoqi@0 654 args()->print_data_on(st);
aoqi@0 655 }
aoqi@0 656 if (has_return()) {
aoqi@0 657 tab(st, true);
aoqi@0 658 st->print("return type");
aoqi@0 659 ret()->print_data_on(st);
aoqi@0 660 }
aoqi@0 661 }
aoqi@0 662
aoqi@0 663 void ciReceiverTypeData::print_receiver_data_on(outputStream* st) const {
aoqi@0 664 uint row;
aoqi@0 665 int entries = 0;
aoqi@0 666 for (row = 0; row < row_limit(); row++) {
aoqi@0 667 if (receiver(row) != NULL) entries++;
aoqi@0 668 }
aoqi@0 669 st->print_cr("count(%u) entries(%u)", count(), entries);
aoqi@0 670 for (row = 0; row < row_limit(); row++) {
aoqi@0 671 if (receiver(row) != NULL) {
aoqi@0 672 tab(st);
aoqi@0 673 receiver(row)->print_name_on(st);
aoqi@0 674 st->print_cr("(%u)", receiver_count(row));
aoqi@0 675 }
aoqi@0 676 }
aoqi@0 677 }
aoqi@0 678
aoqi@0 679 void ciReceiverTypeData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 680 print_shared(st, "ciReceiverTypeData", extra);
aoqi@0 681 print_receiver_data_on(st);
aoqi@0 682 }
aoqi@0 683
aoqi@0 684 void ciVirtualCallData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 685 print_shared(st, "ciVirtualCallData", extra);
aoqi@0 686 rtd_super()->print_receiver_data_on(st);
aoqi@0 687 }
aoqi@0 688
aoqi@0 689 void ciVirtualCallTypeData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 690 print_shared(st, "ciVirtualCallTypeData", extra);
aoqi@0 691 rtd_super()->print_receiver_data_on(st);
aoqi@0 692 if (has_arguments()) {
aoqi@0 693 tab(st, true);
aoqi@0 694 st->print("argument types");
aoqi@0 695 args()->print_data_on(st);
aoqi@0 696 }
aoqi@0 697 if (has_return()) {
aoqi@0 698 tab(st, true);
aoqi@0 699 st->print("return type");
aoqi@0 700 ret()->print_data_on(st);
aoqi@0 701 }
aoqi@0 702 }
aoqi@0 703
aoqi@0 704 void ciParametersTypeData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 705 st->print_cr("ciParametersTypeData");
aoqi@0 706 parameters()->print_data_on(st);
aoqi@0 707 }
aoqi@0 708
aoqi@0 709 void ciSpeculativeTrapData::print_data_on(outputStream* st, const char* extra) const {
aoqi@0 710 st->print_cr("ciSpeculativeTrapData");
aoqi@0 711 tab(st);
aoqi@0 712 method()->print_short_name(st);
aoqi@0 713 st->cr();
aoqi@0 714 }
aoqi@0 715 #endif

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