Tue, 22 Oct 2013 09:51:47 +0200
8026251: New type profiling points: parameters to methods
Summary: x86 interpreter and c1 type profiling for parameters on method entries
Reviewed-by: kvn, twisti
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.
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23 */
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"
37 // ==================================================================
38 // DataLayout
39 //
40 // Overlay for generic profiling data.
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) || (tag == parameters_type_data_tag);
45 }
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 }
66 void DataLayout::clean_weak_klass_links(BoolObjectClosure* cl) {
67 ResourceMark m;
68 data_in()->clean_weak_klass_links(cl);
69 }
72 // ==================================================================
73 // ProfileData
74 //
75 // A ProfileData object is created to refer to a section of profiling
76 // data in a structured way.
78 // Constructor for invalid ProfileData.
79 ProfileData::ProfileData() {
80 _data = NULL;
81 }
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 }
99 void ProfileData::tab(outputStream* st, bool first) const {
100 st->fill_to(first ? tab_width_one : tab_width_two);
101 }
102 #endif // !PRODUCT
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.
111 #ifndef PRODUCT
112 void BitData::print_data_on(outputStream* st) const {
113 print_shared(st, "BitData");
114 }
115 #endif // !PRODUCT
117 // ==================================================================
118 // CounterData
119 //
120 // A CounterData corresponds to a simple counter.
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
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.
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 }
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
159 int TypeStackSlotEntries::compute_cell_count(Symbol* signature, bool include_receiver, int max) {
160 // Parameter profiling include the receiver
161 int args_count = include_receiver ? 1 : 0;
162 ResourceMark rm;
163 SignatureStream ss(signature);
164 args_count += ss.reference_parameter_count();
165 args_count = MIN2(args_count, max);
166 return args_count * per_arg_cell_count;
167 }
169 int TypeEntriesAtCall::compute_cell_count(BytecodeStream* stream) {
170 assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
171 assert(TypeStackSlotEntries::per_arg_count() > ReturnTypeEntry::static_cell_count(), "code to test for arguments/results broken");
172 Bytecode_invoke inv(stream->method(), stream->bci());
173 int args_cell = 0;
174 if (arguments_profiling_enabled()) {
175 args_cell = TypeStackSlotEntries::compute_cell_count(inv.signature(), false, TypeProfileArgsLimit);
176 }
177 int ret_cell = 0;
178 if (return_profiling_enabled() && (inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY)) {
179 ret_cell = ReturnTypeEntry::static_cell_count();
180 }
181 int header_cell = 0;
182 if (args_cell + ret_cell > 0) {
183 header_cell = header_cell_count();
184 }
186 return header_cell + args_cell + ret_cell;
187 }
189 class ArgumentOffsetComputer : public SignatureInfo {
190 private:
191 int _max;
192 GrowableArray<int> _offsets;
194 void set(int size, BasicType type) { _size += size; }
195 void do_object(int begin, int end) {
196 if (_offsets.length() < _max) {
197 _offsets.push(_size);
198 }
199 SignatureInfo::do_object(begin, end);
200 }
201 void do_array (int begin, int end) {
202 if (_offsets.length() < _max) {
203 _offsets.push(_size);
204 }
205 SignatureInfo::do_array(begin, end);
206 }
208 public:
209 ArgumentOffsetComputer(Symbol* signature, int max)
210 : SignatureInfo(signature), _max(max), _offsets(Thread::current(), max) {
211 }
213 int total() { lazy_iterate_parameters(); return _size; }
215 int off_at(int i) const { return _offsets.at(i); }
216 };
218 void TypeStackSlotEntries::post_initialize(Symbol* signature, bool has_receiver, bool include_receiver) {
219 ResourceMark rm;
220 int start = 0;
221 // Parameter profiling include the receiver
222 if (include_receiver && has_receiver) {
223 set_stack_slot(0, 0);
224 set_type(0, type_none());
225 start += 1;
226 }
227 ArgumentOffsetComputer aos(signature, _number_of_entries-start);
228 aos.total();
229 for (int i = start; i < _number_of_entries; i++) {
230 set_stack_slot(i, aos.off_at(i-start) + (has_receiver ? 1 : 0));
231 set_type(i, type_none());
232 }
233 }
235 void CallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
236 assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
237 Bytecode_invoke inv(stream->method(), stream->bci());
239 SignatureStream ss(inv.signature());
240 if (has_arguments()) {
241 #ifdef ASSERT
242 ResourceMark rm;
243 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit);
244 assert(count > 0, "room for args type but none found?");
245 check_number_of_arguments(count);
246 #endif
247 _args.post_initialize(inv.signature(), inv.has_receiver(), false);
248 }
250 if (has_return()) {
251 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?");
252 _ret.post_initialize();
253 }
254 }
256 void VirtualCallTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
257 assert(Bytecodes::is_invoke(stream->code()), "should be invoke");
258 Bytecode_invoke inv(stream->method(), stream->bci());
260 if (has_arguments()) {
261 #ifdef ASSERT
262 ResourceMark rm;
263 SignatureStream ss(inv.signature());
264 int count = MIN2(ss.reference_parameter_count(), (int)TypeProfileArgsLimit);
265 assert(count > 0, "room for args type but none found?");
266 check_number_of_arguments(count);
267 #endif
268 _args.post_initialize(inv.signature(), inv.has_receiver(), false);
269 }
271 if (has_return()) {
272 assert(inv.result_type() == T_OBJECT || inv.result_type() == T_ARRAY, "room for a ret type but doesn't return obj?");
273 _ret.post_initialize();
274 }
275 }
277 bool TypeEntries::is_loader_alive(BoolObjectClosure* is_alive_cl, intptr_t p) {
278 return !is_type_none(p) &&
279 !((Klass*)klass_part(p))->is_loader_alive(is_alive_cl);
280 }
282 void TypeStackSlotEntries::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
283 for (int i = 0; i < _number_of_entries; i++) {
284 intptr_t p = type(i);
285 if (is_loader_alive(is_alive_cl, p)) {
286 set_type(i, type_none());
287 }
288 }
289 }
291 void ReturnTypeEntry::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
292 intptr_t p = type();
293 if (is_loader_alive(is_alive_cl, p)) {
294 set_type(type_none());
295 }
296 }
298 bool TypeEntriesAtCall::return_profiling_enabled() {
299 return MethodData::profile_return();
300 }
302 bool TypeEntriesAtCall::arguments_profiling_enabled() {
303 return MethodData::profile_arguments();
304 }
306 #ifndef PRODUCT
307 void TypeEntries::print_klass(outputStream* st, intptr_t k) {
308 if (is_type_none(k)) {
309 st->print("none");
310 } else if (is_type_unknown(k)) {
311 st->print("unknown");
312 } else {
313 valid_klass(k)->print_value_on(st);
314 }
315 if (was_null_seen(k)) {
316 st->print(" (null seen)");
317 }
318 }
320 void TypeStackSlotEntries::print_data_on(outputStream* st) const {
321 for (int i = 0; i < _number_of_entries; i++) {
322 _pd->tab(st);
323 st->print("%d: stack(%u) ", i, stack_slot(i));
324 print_klass(st, type(i));
325 st->cr();
326 }
327 }
329 void ReturnTypeEntry::print_data_on(outputStream* st) const {
330 _pd->tab(st);
331 print_klass(st, type());
332 st->cr();
333 }
335 void CallTypeData::print_data_on(outputStream* st) const {
336 CounterData::print_data_on(st);
337 if (has_arguments()) {
338 tab(st, true);
339 st->print("argument types");
340 _args.print_data_on(st);
341 }
342 if (has_return()) {
343 tab(st, true);
344 st->print("return type");
345 _ret.print_data_on(st);
346 }
347 }
349 void VirtualCallTypeData::print_data_on(outputStream* st) const {
350 VirtualCallData::print_data_on(st);
351 if (has_arguments()) {
352 tab(st, true);
353 st->print("argument types");
354 _args.print_data_on(st);
355 }
356 if (has_return()) {
357 tab(st, true);
358 st->print("return type");
359 _ret.print_data_on(st);
360 }
361 }
362 #endif
364 // ==================================================================
365 // ReceiverTypeData
366 //
367 // A ReceiverTypeData is used to access profiling information about a
368 // dynamic type check. It consists of a counter which counts the total times
369 // that the check is reached, and a series of (Klass*, count) pairs
370 // which are used to store a type profile for the receiver of the check.
372 void ReceiverTypeData::clean_weak_klass_links(BoolObjectClosure* is_alive_cl) {
373 for (uint row = 0; row < row_limit(); row++) {
374 Klass* p = receiver(row);
375 if (p != NULL && !p->is_loader_alive(is_alive_cl)) {
376 clear_row(row);
377 }
378 }
379 }
381 #ifndef PRODUCT
382 void ReceiverTypeData::print_receiver_data_on(outputStream* st) const {
383 uint row;
384 int entries = 0;
385 for (row = 0; row < row_limit(); row++) {
386 if (receiver(row) != NULL) entries++;
387 }
388 st->print_cr("count(%u) entries(%u)", count(), entries);
389 int total = count();
390 for (row = 0; row < row_limit(); row++) {
391 if (receiver(row) != NULL) {
392 total += receiver_count(row);
393 }
394 }
395 for (row = 0; row < row_limit(); row++) {
396 if (receiver(row) != NULL) {
397 tab(st);
398 receiver(row)->print_value_on(st);
399 st->print_cr("(%u %4.2f)", receiver_count(row), (float) receiver_count(row) / (float) total);
400 }
401 }
402 }
403 void ReceiverTypeData::print_data_on(outputStream* st) const {
404 print_shared(st, "ReceiverTypeData");
405 print_receiver_data_on(st);
406 }
407 void VirtualCallData::print_data_on(outputStream* st) const {
408 print_shared(st, "VirtualCallData");
409 print_receiver_data_on(st);
410 }
411 #endif // !PRODUCT
413 // ==================================================================
414 // RetData
415 //
416 // A RetData is used to access profiling information for a ret bytecode.
417 // It is composed of a count of the number of times that the ret has
418 // been executed, followed by a series of triples of the form
419 // (bci, count, di) which count the number of times that some bci was the
420 // target of the ret and cache a corresponding displacement.
422 void RetData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
423 for (uint row = 0; row < row_limit(); row++) {
424 set_bci_displacement(row, -1);
425 set_bci(row, no_bci);
426 }
427 // release so other threads see a consistent state. bci is used as
428 // a valid flag for bci_displacement.
429 OrderAccess::release();
430 }
432 // This routine needs to atomically update the RetData structure, so the
433 // caller needs to hold the RetData_lock before it gets here. Since taking
434 // the lock can block (and allow GC) and since RetData is a ProfileData is a
435 // wrapper around a derived oop, taking the lock in _this_ method will
436 // basically cause the 'this' pointer's _data field to contain junk after the
437 // lock. We require the caller to take the lock before making the ProfileData
438 // structure. Currently the only caller is InterpreterRuntime::update_mdp_for_ret
439 address RetData::fixup_ret(int return_bci, MethodData* h_mdo) {
440 // First find the mdp which corresponds to the return bci.
441 address mdp = h_mdo->bci_to_dp(return_bci);
443 // Now check to see if any of the cache slots are open.
444 for (uint row = 0; row < row_limit(); row++) {
445 if (bci(row) == no_bci) {
446 set_bci_displacement(row, mdp - dp());
447 set_bci_count(row, DataLayout::counter_increment);
448 // Barrier to ensure displacement is written before the bci; allows
449 // the interpreter to read displacement without fear of race condition.
450 release_set_bci(row, return_bci);
451 break;
452 }
453 }
454 return mdp;
455 }
458 #ifndef PRODUCT
459 void RetData::print_data_on(outputStream* st) const {
460 print_shared(st, "RetData");
461 uint row;
462 int entries = 0;
463 for (row = 0; row < row_limit(); row++) {
464 if (bci(row) != no_bci) entries++;
465 }
466 st->print_cr("count(%u) entries(%u)", count(), entries);
467 for (row = 0; row < row_limit(); row++) {
468 if (bci(row) != no_bci) {
469 tab(st);
470 st->print_cr("bci(%d: count(%u) displacement(%d))",
471 bci(row), bci_count(row), bci_displacement(row));
472 }
473 }
474 }
475 #endif // !PRODUCT
477 // ==================================================================
478 // BranchData
479 //
480 // A BranchData is used to access profiling data for a two-way branch.
481 // It consists of taken and not_taken counts as well as a data displacement
482 // for the taken case.
484 void BranchData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
485 assert(stream->bci() == bci(), "wrong pos");
486 int target = stream->dest();
487 int my_di = mdo->dp_to_di(dp());
488 int target_di = mdo->bci_to_di(target);
489 int offset = target_di - my_di;
490 set_displacement(offset);
491 }
493 #ifndef PRODUCT
494 void BranchData::print_data_on(outputStream* st) const {
495 print_shared(st, "BranchData");
496 st->print_cr("taken(%u) displacement(%d)",
497 taken(), displacement());
498 tab(st);
499 st->print_cr("not taken(%u)", not_taken());
500 }
501 #endif
503 // ==================================================================
504 // MultiBranchData
505 //
506 // A MultiBranchData is used to access profiling information for
507 // a multi-way branch (*switch bytecodes). It consists of a series
508 // of (count, displacement) pairs, which count the number of times each
509 // case was taken and specify the data displacment for each branch target.
511 int MultiBranchData::compute_cell_count(BytecodeStream* stream) {
512 int cell_count = 0;
513 if (stream->code() == Bytecodes::_tableswitch) {
514 Bytecode_tableswitch sw(stream->method()(), stream->bcp());
515 cell_count = 1 + per_case_cell_count * (1 + sw.length()); // 1 for default
516 } else {
517 Bytecode_lookupswitch sw(stream->method()(), stream->bcp());
518 cell_count = 1 + per_case_cell_count * (sw.number_of_pairs() + 1); // 1 for default
519 }
520 return cell_count;
521 }
523 void MultiBranchData::post_initialize(BytecodeStream* stream,
524 MethodData* mdo) {
525 assert(stream->bci() == bci(), "wrong pos");
526 int target;
527 int my_di;
528 int target_di;
529 int offset;
530 if (stream->code() == Bytecodes::_tableswitch) {
531 Bytecode_tableswitch sw(stream->method()(), stream->bcp());
532 int len = sw.length();
533 assert(array_len() == per_case_cell_count * (len + 1), "wrong len");
534 for (int count = 0; count < len; count++) {
535 target = sw.dest_offset_at(count) + bci();
536 my_di = mdo->dp_to_di(dp());
537 target_di = mdo->bci_to_di(target);
538 offset = target_di - my_di;
539 set_displacement_at(count, offset);
540 }
541 target = sw.default_offset() + bci();
542 my_di = mdo->dp_to_di(dp());
543 target_di = mdo->bci_to_di(target);
544 offset = target_di - my_di;
545 set_default_displacement(offset);
547 } else {
548 Bytecode_lookupswitch sw(stream->method()(), stream->bcp());
549 int npairs = sw.number_of_pairs();
550 assert(array_len() == per_case_cell_count * (npairs + 1), "wrong len");
551 for (int count = 0; count < npairs; count++) {
552 LookupswitchPair pair = sw.pair_at(count);
553 target = pair.offset() + bci();
554 my_di = mdo->dp_to_di(dp());
555 target_di = mdo->bci_to_di(target);
556 offset = target_di - my_di;
557 set_displacement_at(count, offset);
558 }
559 target = sw.default_offset() + bci();
560 my_di = mdo->dp_to_di(dp());
561 target_di = mdo->bci_to_di(target);
562 offset = target_di - my_di;
563 set_default_displacement(offset);
564 }
565 }
567 #ifndef PRODUCT
568 void MultiBranchData::print_data_on(outputStream* st) const {
569 print_shared(st, "MultiBranchData");
570 st->print_cr("default_count(%u) displacement(%d)",
571 default_count(), default_displacement());
572 int cases = number_of_cases();
573 for (int i = 0; i < cases; i++) {
574 tab(st);
575 st->print_cr("count(%u) displacement(%d)",
576 count_at(i), displacement_at(i));
577 }
578 }
579 #endif
581 #ifndef PRODUCT
582 void ArgInfoData::print_data_on(outputStream* st) const {
583 print_shared(st, "ArgInfoData");
584 int nargs = number_of_args();
585 for (int i = 0; i < nargs; i++) {
586 st->print(" 0x%x", arg_modified(i));
587 }
588 st->cr();
589 }
591 #endif
593 int ParametersTypeData::compute_cell_count(Method* m) {
594 if (!MethodData::profile_parameters_for_method(m)) {
595 return 0;
596 }
597 int max = TypeProfileParmsLimit == -1 ? INT_MAX : TypeProfileParmsLimit;
598 int obj_args = TypeStackSlotEntries::compute_cell_count(m->signature(), !m->is_static(), max);
599 if (obj_args > 0) {
600 return obj_args + 1; // 1 cell for array len
601 }
602 return 0;
603 }
605 void ParametersTypeData::post_initialize(BytecodeStream* stream, MethodData* mdo) {
606 _parameters.post_initialize(mdo->method()->signature(), !mdo->method()->is_static(), true);
607 }
609 bool ParametersTypeData::profiling_enabled() {
610 return MethodData::profile_parameters();
611 }
613 #ifndef PRODUCT
614 void ParametersTypeData::print_data_on(outputStream* st) const {
615 st->print("parameter types");
616 _parameters.print_data_on(st);
617 }
618 #endif
620 // ==================================================================
621 // MethodData*
622 //
623 // A MethodData* holds information which has been collected about
624 // a method.
626 MethodData* MethodData::allocate(ClassLoaderData* loader_data, methodHandle method, TRAPS) {
627 int size = MethodData::compute_allocation_size_in_words(method);
629 return new (loader_data, size, false, MetaspaceObj::MethodDataType, THREAD)
630 MethodData(method(), size, CHECK_NULL);
631 }
633 int MethodData::bytecode_cell_count(Bytecodes::Code code) {
634 #if defined(COMPILER1) && !defined(COMPILER2)
635 return no_profile_data;
636 #else
637 switch (code) {
638 case Bytecodes::_checkcast:
639 case Bytecodes::_instanceof:
640 case Bytecodes::_aastore:
641 if (TypeProfileCasts) {
642 return ReceiverTypeData::static_cell_count();
643 } else {
644 return BitData::static_cell_count();
645 }
646 case Bytecodes::_invokespecial:
647 case Bytecodes::_invokestatic:
648 if (MethodData::profile_arguments() || MethodData::profile_return()) {
649 return variable_cell_count;
650 } else {
651 return CounterData::static_cell_count();
652 }
653 case Bytecodes::_goto:
654 case Bytecodes::_goto_w:
655 case Bytecodes::_jsr:
656 case Bytecodes::_jsr_w:
657 return JumpData::static_cell_count();
658 case Bytecodes::_invokevirtual:
659 case Bytecodes::_invokeinterface:
660 if (MethodData::profile_arguments() || MethodData::profile_return()) {
661 return variable_cell_count;
662 } else {
663 return VirtualCallData::static_cell_count();
664 }
665 case Bytecodes::_invokedynamic:
666 if (MethodData::profile_arguments() || MethodData::profile_return()) {
667 return variable_cell_count;
668 } else {
669 return CounterData::static_cell_count();
670 }
671 case Bytecodes::_ret:
672 return RetData::static_cell_count();
673 case Bytecodes::_ifeq:
674 case Bytecodes::_ifne:
675 case Bytecodes::_iflt:
676 case Bytecodes::_ifge:
677 case Bytecodes::_ifgt:
678 case Bytecodes::_ifle:
679 case Bytecodes::_if_icmpeq:
680 case Bytecodes::_if_icmpne:
681 case Bytecodes::_if_icmplt:
682 case Bytecodes::_if_icmpge:
683 case Bytecodes::_if_icmpgt:
684 case Bytecodes::_if_icmple:
685 case Bytecodes::_if_acmpeq:
686 case Bytecodes::_if_acmpne:
687 case Bytecodes::_ifnull:
688 case Bytecodes::_ifnonnull:
689 return BranchData::static_cell_count();
690 case Bytecodes::_lookupswitch:
691 case Bytecodes::_tableswitch:
692 return variable_cell_count;
693 }
694 return no_profile_data;
695 #endif
696 }
698 // Compute the size of the profiling information corresponding to
699 // the current bytecode.
700 int MethodData::compute_data_size(BytecodeStream* stream) {
701 int cell_count = bytecode_cell_count(stream->code());
702 if (cell_count == no_profile_data) {
703 return 0;
704 }
705 if (cell_count == variable_cell_count) {
706 switch (stream->code()) {
707 case Bytecodes::_lookupswitch:
708 case Bytecodes::_tableswitch:
709 cell_count = MultiBranchData::compute_cell_count(stream);
710 break;
711 case Bytecodes::_invokespecial:
712 case Bytecodes::_invokestatic:
713 case Bytecodes::_invokedynamic:
714 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile");
715 if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
716 profile_return_for_invoke(stream->method(), stream->bci())) {
717 cell_count = CallTypeData::compute_cell_count(stream);
718 } else {
719 cell_count = CounterData::static_cell_count();
720 }
721 break;
722 case Bytecodes::_invokevirtual:
723 case Bytecodes::_invokeinterface: {
724 assert(MethodData::profile_arguments() || MethodData::profile_return(), "should be collecting args profile");
725 if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
726 profile_return_for_invoke(stream->method(), stream->bci())) {
727 cell_count = VirtualCallTypeData::compute_cell_count(stream);
728 } else {
729 cell_count = VirtualCallData::static_cell_count();
730 }
731 break;
732 }
733 default:
734 fatal("unexpected bytecode for var length profile data");
735 }
736 }
737 // Note: cell_count might be zero, meaning that there is just
738 // a DataLayout header, with no extra cells.
739 assert(cell_count >= 0, "sanity");
740 return DataLayout::compute_size_in_bytes(cell_count);
741 }
743 int MethodData::compute_extra_data_count(int data_size, int empty_bc_count) {
744 if (ProfileTraps) {
745 // Assume that up to 3% of BCIs with no MDP will need to allocate one.
746 int extra_data_count = (uint)(empty_bc_count * 3) / 128 + 1;
747 // If the method is large, let the extra BCIs grow numerous (to ~1%).
748 int one_percent_of_data
749 = (uint)data_size / (DataLayout::header_size_in_bytes()*128);
750 if (extra_data_count < one_percent_of_data)
751 extra_data_count = one_percent_of_data;
752 if (extra_data_count > empty_bc_count)
753 extra_data_count = empty_bc_count; // no need for more
754 return extra_data_count;
755 } else {
756 return 0;
757 }
758 }
760 // Compute the size of the MethodData* necessary to store
761 // profiling information about a given method. Size is in bytes.
762 int MethodData::compute_allocation_size_in_bytes(methodHandle method) {
763 int data_size = 0;
764 BytecodeStream stream(method);
765 Bytecodes::Code c;
766 int empty_bc_count = 0; // number of bytecodes lacking data
767 while ((c = stream.next()) >= 0) {
768 int size_in_bytes = compute_data_size(&stream);
769 data_size += size_in_bytes;
770 if (size_in_bytes == 0) empty_bc_count += 1;
771 }
772 int object_size = in_bytes(data_offset()) + data_size;
774 // Add some extra DataLayout cells (at least one) to track stray traps.
775 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count);
776 object_size += extra_data_count * DataLayout::compute_size_in_bytes(0);
778 // Add a cell to record information about modified arguments.
779 int arg_size = method->size_of_parameters();
780 object_size += DataLayout::compute_size_in_bytes(arg_size+1);
782 // Reserve room for an area of the MDO dedicated to profiling of
783 // parameters
784 int args_cell = ParametersTypeData::compute_cell_count(method());
785 if (args_cell > 0) {
786 object_size += DataLayout::compute_size_in_bytes(args_cell);
787 }
788 return object_size;
789 }
791 // Compute the size of the MethodData* necessary to store
792 // profiling information about a given method. Size is in words
793 int MethodData::compute_allocation_size_in_words(methodHandle method) {
794 int byte_size = compute_allocation_size_in_bytes(method);
795 int word_size = align_size_up(byte_size, BytesPerWord) / BytesPerWord;
796 return align_object_size(word_size);
797 }
799 // Initialize an individual data segment. Returns the size of
800 // the segment in bytes.
801 int MethodData::initialize_data(BytecodeStream* stream,
802 int data_index) {
803 #if defined(COMPILER1) && !defined(COMPILER2)
804 return 0;
805 #else
806 int cell_count = -1;
807 int tag = DataLayout::no_tag;
808 DataLayout* data_layout = data_layout_at(data_index);
809 Bytecodes::Code c = stream->code();
810 switch (c) {
811 case Bytecodes::_checkcast:
812 case Bytecodes::_instanceof:
813 case Bytecodes::_aastore:
814 if (TypeProfileCasts) {
815 cell_count = ReceiverTypeData::static_cell_count();
816 tag = DataLayout::receiver_type_data_tag;
817 } else {
818 cell_count = BitData::static_cell_count();
819 tag = DataLayout::bit_data_tag;
820 }
821 break;
822 case Bytecodes::_invokespecial:
823 case Bytecodes::_invokestatic: {
824 int counter_data_cell_count = CounterData::static_cell_count();
825 if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
826 profile_return_for_invoke(stream->method(), stream->bci())) {
827 cell_count = CallTypeData::compute_cell_count(stream);
828 } else {
829 cell_count = counter_data_cell_count;
830 }
831 if (cell_count > counter_data_cell_count) {
832 tag = DataLayout::call_type_data_tag;
833 } else {
834 tag = DataLayout::counter_data_tag;
835 }
836 break;
837 }
838 case Bytecodes::_goto:
839 case Bytecodes::_goto_w:
840 case Bytecodes::_jsr:
841 case Bytecodes::_jsr_w:
842 cell_count = JumpData::static_cell_count();
843 tag = DataLayout::jump_data_tag;
844 break;
845 case Bytecodes::_invokevirtual:
846 case Bytecodes::_invokeinterface: {
847 int virtual_call_data_cell_count = VirtualCallData::static_cell_count();
848 if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
849 profile_return_for_invoke(stream->method(), stream->bci())) {
850 cell_count = VirtualCallTypeData::compute_cell_count(stream);
851 } else {
852 cell_count = virtual_call_data_cell_count;
853 }
854 if (cell_count > virtual_call_data_cell_count) {
855 tag = DataLayout::virtual_call_type_data_tag;
856 } else {
857 tag = DataLayout::virtual_call_data_tag;
858 }
859 break;
860 }
861 case Bytecodes::_invokedynamic: {
862 // %%% should make a type profile for any invokedynamic that takes a ref argument
863 int counter_data_cell_count = CounterData::static_cell_count();
864 if (profile_arguments_for_invoke(stream->method(), stream->bci()) ||
865 profile_return_for_invoke(stream->method(), stream->bci())) {
866 cell_count = CallTypeData::compute_cell_count(stream);
867 } else {
868 cell_count = counter_data_cell_count;
869 }
870 if (cell_count > counter_data_cell_count) {
871 tag = DataLayout::call_type_data_tag;
872 } else {
873 tag = DataLayout::counter_data_tag;
874 }
875 break;
876 }
877 case Bytecodes::_ret:
878 cell_count = RetData::static_cell_count();
879 tag = DataLayout::ret_data_tag;
880 break;
881 case Bytecodes::_ifeq:
882 case Bytecodes::_ifne:
883 case Bytecodes::_iflt:
884 case Bytecodes::_ifge:
885 case Bytecodes::_ifgt:
886 case Bytecodes::_ifle:
887 case Bytecodes::_if_icmpeq:
888 case Bytecodes::_if_icmpne:
889 case Bytecodes::_if_icmplt:
890 case Bytecodes::_if_icmpge:
891 case Bytecodes::_if_icmpgt:
892 case Bytecodes::_if_icmple:
893 case Bytecodes::_if_acmpeq:
894 case Bytecodes::_if_acmpne:
895 case Bytecodes::_ifnull:
896 case Bytecodes::_ifnonnull:
897 cell_count = BranchData::static_cell_count();
898 tag = DataLayout::branch_data_tag;
899 break;
900 case Bytecodes::_lookupswitch:
901 case Bytecodes::_tableswitch:
902 cell_count = MultiBranchData::compute_cell_count(stream);
903 tag = DataLayout::multi_branch_data_tag;
904 break;
905 }
906 assert(tag == DataLayout::multi_branch_data_tag ||
907 ((MethodData::profile_arguments() || MethodData::profile_return()) &&
908 (tag == DataLayout::call_type_data_tag ||
909 tag == DataLayout::counter_data_tag ||
910 tag == DataLayout::virtual_call_type_data_tag ||
911 tag == DataLayout::virtual_call_data_tag)) ||
912 cell_count == bytecode_cell_count(c), "cell counts must agree");
913 if (cell_count >= 0) {
914 assert(tag != DataLayout::no_tag, "bad tag");
915 assert(bytecode_has_profile(c), "agree w/ BHP");
916 data_layout->initialize(tag, stream->bci(), cell_count);
917 return DataLayout::compute_size_in_bytes(cell_count);
918 } else {
919 assert(!bytecode_has_profile(c), "agree w/ !BHP");
920 return 0;
921 }
922 #endif
923 }
925 // Get the data at an arbitrary (sort of) data index.
926 ProfileData* MethodData::data_at(int data_index) const {
927 if (out_of_bounds(data_index)) {
928 return NULL;
929 }
930 DataLayout* data_layout = data_layout_at(data_index);
931 return data_layout->data_in();
932 }
934 ProfileData* DataLayout::data_in() {
935 switch (tag()) {
936 case DataLayout::no_tag:
937 default:
938 ShouldNotReachHere();
939 return NULL;
940 case DataLayout::bit_data_tag:
941 return new BitData(this);
942 case DataLayout::counter_data_tag:
943 return new CounterData(this);
944 case DataLayout::jump_data_tag:
945 return new JumpData(this);
946 case DataLayout::receiver_type_data_tag:
947 return new ReceiverTypeData(this);
948 case DataLayout::virtual_call_data_tag:
949 return new VirtualCallData(this);
950 case DataLayout::ret_data_tag:
951 return new RetData(this);
952 case DataLayout::branch_data_tag:
953 return new BranchData(this);
954 case DataLayout::multi_branch_data_tag:
955 return new MultiBranchData(this);
956 case DataLayout::arg_info_data_tag:
957 return new ArgInfoData(this);
958 case DataLayout::call_type_data_tag:
959 return new CallTypeData(this);
960 case DataLayout::virtual_call_type_data_tag:
961 return new VirtualCallTypeData(this);
962 case DataLayout::parameters_type_data_tag:
963 return new ParametersTypeData(this);
964 };
965 }
967 // Iteration over data.
968 ProfileData* MethodData::next_data(ProfileData* current) const {
969 int current_index = dp_to_di(current->dp());
970 int next_index = current_index + current->size_in_bytes();
971 ProfileData* next = data_at(next_index);
972 return next;
973 }
975 // Give each of the data entries a chance to perform specific
976 // data initialization.
977 void MethodData::post_initialize(BytecodeStream* stream) {
978 ResourceMark rm;
979 ProfileData* data;
980 for (data = first_data(); is_valid(data); data = next_data(data)) {
981 stream->set_start(data->bci());
982 stream->next();
983 data->post_initialize(stream, this);
984 }
985 if (_parameters_type_data_di != -1) {
986 parameters_type_data()->post_initialize(NULL, this);
987 }
988 }
990 // Initialize the MethodData* corresponding to a given method.
991 MethodData::MethodData(methodHandle method, int size, TRAPS) {
992 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC
993 ResourceMark rm;
994 // Set the method back-pointer.
995 _method = method();
997 init();
998 set_creation_mileage(mileage_of(method()));
1000 // Go through the bytecodes and allocate and initialize the
1001 // corresponding data cells.
1002 int data_size = 0;
1003 int empty_bc_count = 0; // number of bytecodes lacking data
1004 _data[0] = 0; // apparently not set below.
1005 BytecodeStream stream(method);
1006 Bytecodes::Code c;
1007 while ((c = stream.next()) >= 0) {
1008 int size_in_bytes = initialize_data(&stream, data_size);
1009 data_size += size_in_bytes;
1010 if (size_in_bytes == 0) empty_bc_count += 1;
1011 }
1012 _data_size = data_size;
1013 int object_size = in_bytes(data_offset()) + data_size;
1015 // Add some extra DataLayout cells (at least one) to track stray traps.
1016 int extra_data_count = compute_extra_data_count(data_size, empty_bc_count);
1017 int extra_size = extra_data_count * DataLayout::compute_size_in_bytes(0);
1019 // Add a cell to record information about modified arguments.
1020 // Set up _args_modified array after traps cells so that
1021 // the code for traps cells works.
1022 DataLayout *dp = data_layout_at(data_size + extra_size);
1024 int arg_size = method->size_of_parameters();
1025 dp->initialize(DataLayout::arg_info_data_tag, 0, arg_size+1);
1027 int arg_data_size = DataLayout::compute_size_in_bytes(arg_size+1);
1028 object_size += extra_size + arg_data_size;
1030 int args_cell = ParametersTypeData::compute_cell_count(method());
1031 // If we are profiling parameters, we reserver an area near the end
1032 // of the MDO after the slots for bytecodes (because there's no bci
1033 // for method entry so they don't fit with the framework for the
1034 // profiling of bytecodes). We store the offset within the MDO of
1035 // this area (or -1 if no parameter is profiled)
1036 if (args_cell > 0) {
1037 object_size += DataLayout::compute_size_in_bytes(args_cell);
1038 _parameters_type_data_di = data_size + extra_size + arg_data_size;
1039 DataLayout *dp = data_layout_at(data_size + extra_size + arg_data_size);
1040 dp->initialize(DataLayout::parameters_type_data_tag, 0, args_cell);
1041 } else {
1042 _parameters_type_data_di = -1;
1043 }
1045 // Set an initial hint. Don't use set_hint_di() because
1046 // first_di() may be out of bounds if data_size is 0.
1047 // In that situation, _hint_di is never used, but at
1048 // least well-defined.
1049 _hint_di = first_di();
1051 post_initialize(&stream);
1053 set_size(object_size);
1054 }
1056 void MethodData::init() {
1057 _invocation_counter.init();
1058 _backedge_counter.init();
1059 _invocation_counter_start = 0;
1060 _backedge_counter_start = 0;
1061 _num_loops = 0;
1062 _num_blocks = 0;
1063 _highest_comp_level = 0;
1064 _highest_osr_comp_level = 0;
1065 _would_profile = true;
1067 // Initialize flags and trap history.
1068 _nof_decompiles = 0;
1069 _nof_overflow_recompiles = 0;
1070 _nof_overflow_traps = 0;
1071 clear_escape_info();
1072 assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align");
1073 Copy::zero_to_words((HeapWord*) &_trap_hist,
1074 sizeof(_trap_hist) / sizeof(HeapWord));
1075 }
1077 // Get a measure of how much mileage the method has on it.
1078 int MethodData::mileage_of(Method* method) {
1079 int mileage = 0;
1080 if (TieredCompilation) {
1081 mileage = MAX2(method->invocation_count(), method->backedge_count());
1082 } else {
1083 int iic = method->interpreter_invocation_count();
1084 if (mileage < iic) mileage = iic;
1085 MethodCounters* mcs = method->method_counters();
1086 if (mcs != NULL) {
1087 InvocationCounter* ic = mcs->invocation_counter();
1088 InvocationCounter* bc = mcs->backedge_counter();
1089 int icval = ic->count();
1090 if (ic->carry()) icval += CompileThreshold;
1091 if (mileage < icval) mileage = icval;
1092 int bcval = bc->count();
1093 if (bc->carry()) bcval += CompileThreshold;
1094 if (mileage < bcval) mileage = bcval;
1095 }
1096 }
1097 return mileage;
1098 }
1100 bool MethodData::is_mature() const {
1101 return CompilationPolicy::policy()->is_mature(_method);
1102 }
1104 // Translate a bci to its corresponding data index (di).
1105 address MethodData::bci_to_dp(int bci) {
1106 ResourceMark rm;
1107 ProfileData* data = data_before(bci);
1108 ProfileData* prev = NULL;
1109 for ( ; is_valid(data); data = next_data(data)) {
1110 if (data->bci() >= bci) {
1111 if (data->bci() == bci) set_hint_di(dp_to_di(data->dp()));
1112 else if (prev != NULL) set_hint_di(dp_to_di(prev->dp()));
1113 return data->dp();
1114 }
1115 prev = data;
1116 }
1117 return (address)limit_data_position();
1118 }
1120 // Translate a bci to its corresponding data, or NULL.
1121 ProfileData* MethodData::bci_to_data(int bci) {
1122 ProfileData* data = data_before(bci);
1123 for ( ; is_valid(data); data = next_data(data)) {
1124 if (data->bci() == bci) {
1125 set_hint_di(dp_to_di(data->dp()));
1126 return data;
1127 } else if (data->bci() > bci) {
1128 break;
1129 }
1130 }
1131 return bci_to_extra_data(bci, false);
1132 }
1134 // Translate a bci to its corresponding extra data, or NULL.
1135 ProfileData* MethodData::bci_to_extra_data(int bci, bool create_if_missing) {
1136 DataLayout* dp = extra_data_base();
1137 DataLayout* end = extra_data_limit();
1138 DataLayout* avail = NULL;
1139 for (; dp < end; dp = next_extra(dp)) {
1140 // No need for "OrderAccess::load_acquire" ops,
1141 // since the data structure is monotonic.
1142 if (dp->tag() == DataLayout::no_tag) break;
1143 if (dp->tag() == DataLayout::arg_info_data_tag) {
1144 dp = end; // ArgInfoData is at the end of extra data section.
1145 break;
1146 }
1147 if (dp->bci() == bci) {
1148 assert(dp->tag() == DataLayout::bit_data_tag, "sane");
1149 return new BitData(dp);
1150 }
1151 }
1152 if (create_if_missing && dp < end) {
1153 // Allocate this one. There is no mutual exclusion,
1154 // so two threads could allocate different BCIs to the
1155 // same data layout. This means these extra data
1156 // records, like most other MDO contents, must not be
1157 // trusted too much.
1158 DataLayout temp;
1159 temp.initialize(DataLayout::bit_data_tag, bci, 0);
1160 dp->release_set_header(temp.header());
1161 assert(dp->tag() == DataLayout::bit_data_tag, "sane");
1162 //NO: assert(dp->bci() == bci, "no concurrent allocation");
1163 return new BitData(dp);
1164 }
1165 return NULL;
1166 }
1168 ArgInfoData *MethodData::arg_info() {
1169 DataLayout* dp = extra_data_base();
1170 DataLayout* end = extra_data_limit();
1171 for (; dp < end; dp = next_extra(dp)) {
1172 if (dp->tag() == DataLayout::arg_info_data_tag)
1173 return new ArgInfoData(dp);
1174 }
1175 return NULL;
1176 }
1178 // Printing
1180 #ifndef PRODUCT
1182 void MethodData::print_on(outputStream* st) const {
1183 assert(is_methodData(), "should be method data");
1184 st->print("method data for ");
1185 method()->print_value_on(st);
1186 st->cr();
1187 print_data_on(st);
1188 }
1190 #endif //PRODUCT
1192 void MethodData::print_value_on(outputStream* st) const {
1193 assert(is_methodData(), "should be method data");
1194 st->print("method data for ");
1195 method()->print_value_on(st);
1196 }
1198 #ifndef PRODUCT
1199 void MethodData::print_data_on(outputStream* st) const {
1200 ResourceMark rm;
1201 ProfileData* data = first_data();
1202 if (_parameters_type_data_di != -1) {
1203 parameters_type_data()->print_data_on(st);
1204 }
1205 for ( ; is_valid(data); data = next_data(data)) {
1206 st->print("%d", dp_to_di(data->dp()));
1207 st->fill_to(6);
1208 data->print_data_on(st);
1209 }
1210 st->print_cr("--- Extra data:");
1211 DataLayout* dp = extra_data_base();
1212 DataLayout* end = extra_data_limit();
1213 for (; dp < end; dp = next_extra(dp)) {
1214 // No need for "OrderAccess::load_acquire" ops,
1215 // since the data structure is monotonic.
1216 if (dp->tag() == DataLayout::no_tag) continue;
1217 if (dp->tag() == DataLayout::bit_data_tag) {
1218 data = new BitData(dp);
1219 } else {
1220 assert(dp->tag() == DataLayout::arg_info_data_tag, "must be BitData or ArgInfo");
1221 data = new ArgInfoData(dp);
1222 dp = end; // ArgInfoData is at the end of extra data section.
1223 }
1224 st->print("%d", dp_to_di(data->dp()));
1225 st->fill_to(6);
1226 data->print_data_on(st);
1227 }
1228 }
1229 #endif
1231 #if INCLUDE_SERVICES
1232 // Size Statistics
1233 void MethodData::collect_statistics(KlassSizeStats *sz) const {
1234 int n = sz->count(this);
1235 sz->_method_data_bytes += n;
1236 sz->_method_all_bytes += n;
1237 sz->_rw_bytes += n;
1238 }
1239 #endif // INCLUDE_SERVICES
1241 // Verification
1243 void MethodData::verify_on(outputStream* st) {
1244 guarantee(is_methodData(), "object must be method data");
1245 // guarantee(m->is_perm(), "should be in permspace");
1246 this->verify_data_on(st);
1247 }
1249 void MethodData::verify_data_on(outputStream* st) {
1250 NEEDS_CLEANUP;
1251 // not yet implemented.
1252 }
1254 bool MethodData::profile_jsr292(methodHandle m, int bci) {
1255 if (m->is_compiled_lambda_form()) {
1256 return true;
1257 }
1259 Bytecode_invoke inv(m , bci);
1260 return inv.is_invokedynamic() || inv.is_invokehandle();
1261 }
1263 int MethodData::profile_arguments_flag() {
1264 return TypeProfileLevel % 10;
1265 }
1267 bool MethodData::profile_arguments() {
1268 return profile_arguments_flag() > no_type_profile && profile_arguments_flag() <= type_profile_all;
1269 }
1271 bool MethodData::profile_arguments_jsr292_only() {
1272 return profile_arguments_flag() == type_profile_jsr292;
1273 }
1275 bool MethodData::profile_all_arguments() {
1276 return profile_arguments_flag() == type_profile_all;
1277 }
1279 bool MethodData::profile_arguments_for_invoke(methodHandle m, int bci) {
1280 if (!profile_arguments()) {
1281 return false;
1282 }
1284 if (profile_all_arguments()) {
1285 return true;
1286 }
1288 assert(profile_arguments_jsr292_only(), "inconsistent");
1289 return profile_jsr292(m, bci);
1290 }
1292 int MethodData::profile_return_flag() {
1293 return (TypeProfileLevel % 100) / 10;
1294 }
1296 bool MethodData::profile_return() {
1297 return profile_return_flag() > no_type_profile && profile_return_flag() <= type_profile_all;
1298 }
1300 bool MethodData::profile_return_jsr292_only() {
1301 return profile_return_flag() == type_profile_jsr292;
1302 }
1304 bool MethodData::profile_all_return() {
1305 return profile_return_flag() == type_profile_all;
1306 }
1308 bool MethodData::profile_return_for_invoke(methodHandle m, int bci) {
1309 if (!profile_return()) {
1310 return false;
1311 }
1313 if (profile_all_return()) {
1314 return true;
1315 }
1317 assert(profile_return_jsr292_only(), "inconsistent");
1318 return profile_jsr292(m, bci);
1319 }
1321 int MethodData::profile_parameters_flag() {
1322 return TypeProfileLevel / 100;
1323 }
1325 bool MethodData::profile_parameters() {
1326 return profile_parameters_flag() > no_type_profile && profile_parameters_flag() <= type_profile_all;
1327 }
1329 bool MethodData::profile_parameters_jsr292_only() {
1330 return profile_parameters_flag() == type_profile_jsr292;
1331 }
1333 bool MethodData::profile_all_parameters() {
1334 return profile_parameters_flag() == type_profile_all;
1335 }
1337 bool MethodData::profile_parameters_for_method(methodHandle m) {
1338 if (!profile_parameters()) {
1339 return false;
1340 }
1342 if (profile_all_parameters()) {
1343 return true;
1344 }
1346 assert(profile_parameters_jsr292_only(), "inconsistent");
1347 return m->is_compiled_lambda_form();
1348 }