Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/ci/ciInstanceKlass.cpp@b2e698d2276c
src/share/vm/ci/ciInstanceKlass.cpp
Fri, 13 Sep 2013 22:38:02 -0400
- author
- drchase
- date
- Fri, 13 Sep 2013 22:38:02 -0400
- changeset 5732
- b2e698d2276c
- parent 5110
- 6f3fd5150b67
- child 5904
- 5cc2d82aa82a
- permissions
- -rw-r--r--
8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
Summary: Enhance method resolution and resulting data structures, plus some refactoring.
Reviewed-by: twisti, acorn, jrose
1 /*
2 * Copyright (c) 1999, 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 */
25 #include "precompiled.hpp"
26 #include "ci/ciField.hpp"
27 #include "ci/ciInstance.hpp"
28 #include "ci/ciInstanceKlass.hpp"
29 #include "ci/ciUtilities.hpp"
30 #include "classfile/systemDictionary.hpp"
31 #include "memory/allocation.hpp"
32 #include "memory/allocation.inline.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "oops/fieldStreams.hpp"
35 #include "runtime/fieldDescriptor.hpp"
37 // ciInstanceKlass
38 //
39 // This class represents a Klass* in the HotSpot virtual machine
40 // whose Klass part in an InstanceKlass.
42 // ------------------------------------------------------------------
43 // ciInstanceKlass::ciInstanceKlass
44 //
45 // Loaded instance klass.
46 ciInstanceKlass::ciInstanceKlass(KlassHandle h_k) :
47 ciKlass(h_k), _non_static_fields(NULL)
48 {
49 assert(get_Klass()->oop_is_instance(), "wrong type");
50 assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
51 InstanceKlass* ik = get_instanceKlass();
53 AccessFlags access_flags = ik->access_flags();
54 _flags = ciFlags(access_flags);
55 _has_finalizer = access_flags.has_finalizer();
56 _has_subklass = ik->subklass() != NULL;
57 _init_state = ik->init_state();
58 _nonstatic_field_size = ik->nonstatic_field_size();
59 _has_nonstatic_fields = ik->has_nonstatic_fields();
60 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields:
62 _implementor = NULL; // we will fill these lazily
64 Thread *thread = Thread::current();
65 if (ciObjectFactory::is_initialized()) {
66 _loader = JNIHandles::make_local(thread, ik->class_loader());
67 _protection_domain = JNIHandles::make_local(thread,
68 ik->protection_domain());
69 _is_shared = false;
70 } else {
71 Handle h_loader(thread, ik->class_loader());
72 Handle h_protection_domain(thread, ik->protection_domain());
73 _loader = JNIHandles::make_global(h_loader);
74 _protection_domain = JNIHandles::make_global(h_protection_domain);
75 _is_shared = true;
76 }
78 // Lazy fields get filled in only upon request.
79 _super = NULL;
80 _java_mirror = NULL;
82 if (is_shared()) {
83 if (h_k() != SystemDictionary::Object_klass()) {
84 super();
85 }
86 //compute_nonstatic_fields(); // done outside of constructor
87 }
89 _field_cache = NULL;
90 }
92 // Version for unloaded classes:
93 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
94 jobject loader, jobject protection_domain)
95 : ciKlass(name, T_OBJECT)
96 {
97 assert(name->byte_at(0) != '[', "not an instance klass");
98 _init_state = (InstanceKlass::ClassState)0;
99 _nonstatic_field_size = -1;
100 _has_nonstatic_fields = false;
101 _nonstatic_fields = NULL;
102 _loader = loader;
103 _protection_domain = protection_domain;
104 _is_shared = false;
105 _super = NULL;
106 _java_mirror = NULL;
107 _field_cache = NULL;
108 }
112 // ------------------------------------------------------------------
113 // ciInstanceKlass::compute_shared_is_initialized
114 void ciInstanceKlass::compute_shared_init_state() {
115 GUARDED_VM_ENTRY(
116 InstanceKlass* ik = get_instanceKlass();
117 _init_state = ik->init_state();
118 )
119 }
121 // ------------------------------------------------------------------
122 // ciInstanceKlass::compute_shared_has_subklass
123 bool ciInstanceKlass::compute_shared_has_subklass() {
124 GUARDED_VM_ENTRY(
125 InstanceKlass* ik = get_instanceKlass();
126 _has_subklass = ik->subklass() != NULL;
127 return _has_subklass;
128 )
129 }
131 // ------------------------------------------------------------------
132 // ciInstanceKlass::loader
133 oop ciInstanceKlass::loader() {
134 ASSERT_IN_VM;
135 return JNIHandles::resolve(_loader);
136 }
138 // ------------------------------------------------------------------
139 // ciInstanceKlass::loader_handle
140 jobject ciInstanceKlass::loader_handle() {
141 return _loader;
142 }
144 // ------------------------------------------------------------------
145 // ciInstanceKlass::protection_domain
146 oop ciInstanceKlass::protection_domain() {
147 ASSERT_IN_VM;
148 return JNIHandles::resolve(_protection_domain);
149 }
151 // ------------------------------------------------------------------
152 // ciInstanceKlass::protection_domain_handle
153 jobject ciInstanceKlass::protection_domain_handle() {
154 return _protection_domain;
155 }
157 // ------------------------------------------------------------------
158 // ciInstanceKlass::field_cache
159 //
160 // Get the field cache associated with this klass.
161 ciConstantPoolCache* ciInstanceKlass::field_cache() {
162 if (is_shared()) {
163 return NULL;
164 }
165 if (_field_cache == NULL) {
166 assert(!is_java_lang_Object(), "Object has no fields");
167 Arena* arena = CURRENT_ENV->arena();
168 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
169 }
170 return _field_cache;
171 }
173 // ------------------------------------------------------------------
174 // ciInstanceKlass::get_canonical_holder
175 //
176 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
177 #ifdef ASSERT
178 if (!(offset >= 0 && offset < layout_helper())) {
179 tty->print("*** get_canonical_holder(%d) on ", offset);
180 this->print();
181 tty->print_cr(" ***");
182 };
183 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
184 #endif
186 if (offset < instanceOopDesc::base_offset_in_bytes()) {
187 // All header offsets belong properly to java/lang/Object.
188 return CURRENT_ENV->Object_klass();
189 }
191 ciInstanceKlass* self = this;
192 for (;;) {
193 assert(self->is_loaded(), "must be loaded to have size");
194 ciInstanceKlass* super = self->super();
195 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
196 !super->contains_field_offset(offset)) {
197 return self;
198 } else {
199 self = super; // return super->get_canonical_holder(offset)
200 }
201 }
202 }
204 // ------------------------------------------------------------------
205 // ciInstanceKlass::is_java_lang_Object
206 //
207 // Is this klass java.lang.Object?
208 bool ciInstanceKlass::is_java_lang_Object() const {
209 return equals(CURRENT_ENV->Object_klass());
210 }
212 // ------------------------------------------------------------------
213 // ciInstanceKlass::uses_default_loader
214 bool ciInstanceKlass::uses_default_loader() const {
215 // Note: We do not need to resolve the handle or enter the VM
216 // in order to test null-ness.
217 return _loader == NULL;
218 }
220 // ------------------------------------------------------------------
222 /**
223 * Return basic type of boxed value for box klass or T_OBJECT if not.
224 */
225 BasicType ciInstanceKlass::box_klass_type() const {
226 if (uses_default_loader() && is_loaded()) {
227 return SystemDictionary::box_klass_type(get_Klass());
228 } else {
229 return T_OBJECT;
230 }
231 }
233 /**
234 * Is this boxing klass?
235 */
236 bool ciInstanceKlass::is_box_klass() const {
237 return is_java_primitive(box_klass_type());
238 }
240 /**
241 * Is this boxed value offset?
242 */
243 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
244 BasicType bt = box_klass_type();
245 return is_java_primitive(bt) &&
246 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
247 }
249 // ------------------------------------------------------------------
250 // ciInstanceKlass::is_in_package
251 //
252 // Is this klass in the given package?
253 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
254 // To avoid class loader mischief, this test always rejects application classes.
255 if (!uses_default_loader())
256 return false;
257 GUARDED_VM_ENTRY(
258 return is_in_package_impl(packagename, len);
259 )
260 }
262 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
263 ASSERT_IN_VM;
265 // If packagename contains trailing '/' exclude it from the
266 // prefix-test since we test for it explicitly.
267 if (packagename[len - 1] == '/')
268 len--;
270 if (!name()->starts_with(packagename, len))
271 return false;
273 // Test if the class name is something like "java/lang".
274 if ((len + 1) > name()->utf8_length())
275 return false;
277 // Test for trailing '/'
278 if ((char) name()->byte_at(len) != '/')
279 return false;
281 // Make sure it's not actually in a subpackage:
282 if (name()->index_of_at(len+1, "/", 1) >= 0)
283 return false;
285 return true;
286 }
288 // ------------------------------------------------------------------
289 // ciInstanceKlass::print_impl
290 //
291 // Implementation of the print method.
292 void ciInstanceKlass::print_impl(outputStream* st) {
293 ciKlass::print_impl(st);
294 GUARDED_VM_ENTRY(st->print(" loader=0x%x", (address)loader());)
295 if (is_loaded()) {
296 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
297 bool_to_str(is_initialized()),
298 bool_to_str(has_finalizer()),
299 bool_to_str(has_subklass()),
300 layout_helper());
302 _flags.print_klass_flags();
304 if (_super) {
305 st->print(" super=");
306 _super->print_name();
307 }
308 if (_java_mirror) {
309 st->print(" mirror=PRESENT");
310 }
311 } else {
312 st->print(" loaded=false");
313 }
314 }
316 // ------------------------------------------------------------------
317 // ciInstanceKlass::super
318 //
319 // Get the superklass of this klass.
320 ciInstanceKlass* ciInstanceKlass::super() {
321 assert(is_loaded(), "must be loaded");
322 if (_super == NULL && !is_java_lang_Object()) {
323 GUARDED_VM_ENTRY(
324 Klass* super_klass = get_instanceKlass()->super();
325 _super = CURRENT_ENV->get_instance_klass(super_klass);
326 )
327 }
328 return _super;
329 }
331 // ------------------------------------------------------------------
332 // ciInstanceKlass::java_mirror
333 //
334 // Get the instance of java.lang.Class corresponding to this klass.
335 // Cache it on this->_java_mirror.
336 ciInstance* ciInstanceKlass::java_mirror() {
337 if (is_shared()) {
338 return ciKlass::java_mirror();
339 }
340 if (_java_mirror == NULL) {
341 _java_mirror = ciKlass::java_mirror();
342 }
343 return _java_mirror;
344 }
346 // ------------------------------------------------------------------
347 // ciInstanceKlass::unique_concrete_subklass
348 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
349 if (!is_loaded()) return NULL; // No change if class is not loaded
350 if (!is_abstract()) return NULL; // Only applies to abstract classes.
351 if (!has_subklass()) return NULL; // Must have at least one subklass.
352 VM_ENTRY_MARK;
353 InstanceKlass* ik = get_instanceKlass();
354 Klass* up = ik->up_cast_abstract();
355 assert(up->oop_is_instance(), "must be InstanceKlass");
356 if (ik == up) {
357 return NULL;
358 }
359 return CURRENT_THREAD_ENV->get_instance_klass(up);
360 }
362 // ------------------------------------------------------------------
363 // ciInstanceKlass::has_finalizable_subclass
364 bool ciInstanceKlass::has_finalizable_subclass() {
365 if (!is_loaded()) return true;
366 VM_ENTRY_MARK;
367 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
368 }
370 // ------------------------------------------------------------------
371 // ciInstanceKlass::get_field_by_offset
372 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
373 if (!is_static) {
374 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
375 ciField* field = _nonstatic_fields->at(i);
376 int field_off = field->offset_in_bytes();
377 if (field_off == field_offset)
378 return field;
379 if (field_off > field_offset)
380 break;
381 // could do binary search or check bins, but probably not worth it
382 }
383 return NULL;
384 }
385 VM_ENTRY_MARK;
386 InstanceKlass* k = get_instanceKlass();
387 fieldDescriptor fd;
388 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
389 return NULL;
390 }
391 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
392 return field;
393 }
395 // ------------------------------------------------------------------
396 // ciInstanceKlass::get_field_by_name
397 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
398 VM_ENTRY_MARK;
399 InstanceKlass* k = get_instanceKlass();
400 fieldDescriptor fd;
401 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
402 if (def == NULL) {
403 return NULL;
404 }
405 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
406 return field;
407 }
409 // ------------------------------------------------------------------
410 // ciInstanceKlass::non_static_fields.
412 class NonStaticFieldFiller: public FieldClosure {
413 GrowableArray<ciField*>* _arr;
414 ciEnv* _curEnv;
415 public:
416 NonStaticFieldFiller(ciEnv* curEnv, GrowableArray<ciField*>* arr) :
417 _curEnv(curEnv), _arr(arr)
418 {}
419 void do_field(fieldDescriptor* fd) {
420 ciField* field = new (_curEnv->arena()) ciField(fd);
421 _arr->append(field);
422 }
423 };
425 GrowableArray<ciField*>* ciInstanceKlass::non_static_fields() {
426 if (_non_static_fields == NULL) {
427 VM_ENTRY_MARK;
428 ciEnv* curEnv = ciEnv::current();
429 InstanceKlass* ik = get_instanceKlass();
430 int max_n_fields = ik->java_fields_count();
432 Arena* arena = curEnv->arena();
433 _non_static_fields =
434 new (arena) GrowableArray<ciField*>(arena, max_n_fields, 0, NULL);
435 NonStaticFieldFiller filler(curEnv, _non_static_fields);
436 ik->do_nonstatic_fields(&filler);
437 }
438 return _non_static_fields;
439 }
441 static int sort_field_by_offset(ciField** a, ciField** b) {
442 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
443 // (no worries about 32-bit overflow...)
444 }
446 // ------------------------------------------------------------------
447 // ciInstanceKlass::compute_nonstatic_fields
448 int ciInstanceKlass::compute_nonstatic_fields() {
449 assert(is_loaded(), "must be loaded");
451 if (_nonstatic_fields != NULL)
452 return _nonstatic_fields->length();
454 if (!has_nonstatic_fields()) {
455 Arena* arena = CURRENT_ENV->arena();
456 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
457 return 0;
458 }
459 assert(!is_java_lang_Object(), "bootstrap OK");
461 // Size in bytes of my fields, including inherited fields.
462 int fsize = nonstatic_field_size() * heapOopSize;
464 ciInstanceKlass* super = this->super();
465 GrowableArray<ciField*>* super_fields = NULL;
466 if (super != NULL && super->has_nonstatic_fields()) {
467 int super_fsize = super->nonstatic_field_size() * heapOopSize;
468 int super_flen = super->nof_nonstatic_fields();
469 super_fields = super->_nonstatic_fields;
470 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
471 // See if I am no larger than my super; if so, I can use his fields.
472 if (fsize == super_fsize) {
473 _nonstatic_fields = super_fields;
474 return super_fields->length();
475 }
476 }
478 GrowableArray<ciField*>* fields = NULL;
479 GUARDED_VM_ENTRY({
480 fields = compute_nonstatic_fields_impl(super_fields);
481 });
483 if (fields == NULL) {
484 // This can happen if this class (java.lang.Class) has invisible fields.
485 _nonstatic_fields = super_fields;
486 return super_fields->length();
487 }
489 int flen = fields->length();
491 // Now sort them by offset, ascending.
492 // (In principle, they could mix with superclass fields.)
493 fields->sort(sort_field_by_offset);
494 _nonstatic_fields = fields;
495 return flen;
496 }
498 GrowableArray<ciField*>*
499 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
500 super_fields) {
501 ASSERT_IN_VM;
502 Arena* arena = CURRENT_ENV->arena();
503 int flen = 0;
504 GrowableArray<ciField*>* fields = NULL;
505 InstanceKlass* k = get_instanceKlass();
506 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
507 if (fs.access_flags().is_static()) continue;
508 flen += 1;
509 }
511 // allocate the array:
512 if (flen == 0) {
513 return NULL; // return nothing if none are locally declared
514 }
515 if (super_fields != NULL) {
516 flen += super_fields->length();
517 }
518 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
519 if (super_fields != NULL) {
520 fields->appendAll(super_fields);
521 }
523 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
524 if (fs.access_flags().is_static()) continue;
525 fieldDescriptor& fd = fs.field_descriptor();
526 ciField* field = new (arena) ciField(&fd);
527 fields->append(field);
528 }
529 assert(fields->length() == flen, "sanity");
530 return fields;
531 }
533 // ------------------------------------------------------------------
534 // ciInstanceKlass::find_method
535 //
536 // Find a method in this klass.
537 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
538 VM_ENTRY_MARK;
539 InstanceKlass* k = get_instanceKlass();
540 Symbol* name_sym = name->get_symbol();
541 Symbol* sig_sym= signature->get_symbol();
543 Method* m = k->find_method(name_sym, sig_sym);
544 if (m == NULL) return NULL;
546 return CURRENT_THREAD_ENV->get_method(m);
547 }
549 // ------------------------------------------------------------------
550 // ciInstanceKlass::is_leaf_type
551 bool ciInstanceKlass::is_leaf_type() {
552 assert(is_loaded(), "must be loaded");
553 if (is_shared()) {
554 return is_final(); // approximately correct
555 } else {
556 return !_has_subklass && (nof_implementors() == 0);
557 }
558 }
560 // ------------------------------------------------------------------
561 // ciInstanceKlass::implementor
562 //
563 // Report an implementor of this interface.
564 // Note that there are various races here, since my copy
565 // of _nof_implementors might be out of date with respect
566 // to results returned by InstanceKlass::implementor.
567 // This is OK, since any dependencies we decide to assert
568 // will be checked later under the Compile_lock.
569 ciInstanceKlass* ciInstanceKlass::implementor() {
570 ciInstanceKlass* impl = _implementor;
571 if (impl == NULL) {
572 // Go into the VM to fetch the implementor.
573 {
574 VM_ENTRY_MARK;
575 Klass* k = get_instanceKlass()->implementor();
576 if (k != NULL) {
577 if (k == get_instanceKlass()) {
578 // More than one implementors. Use 'this' in this case.
579 impl = this;
580 } else {
581 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
582 }
583 }
584 }
585 // Memoize this result.
586 if (!is_shared()) {
587 _implementor = impl;
588 }
589 }
590 return impl;
591 }
593 // Utility class for printing of the contents of the static fields for
594 // use by compilation replay. It only prints out the information that
595 // could be consumed by the compiler, so for primitive types it prints
596 // out the actual value. For Strings it's the actual string value.
597 // For array types it it's first level array size since that's the
598 // only value which statically unchangeable. For all other reference
599 // types it simply prints out the dynamic type.
601 class StaticFinalFieldPrinter : public FieldClosure {
602 outputStream* _out;
603 const char* _holder;
604 public:
605 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
606 _out(out),
607 _holder(holder) {
608 }
609 void do_field(fieldDescriptor* fd) {
610 if (fd->is_final() && !fd->has_initial_value()) {
611 ResourceMark rm;
612 oop mirror = fd->field_holder()->java_mirror();
613 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
614 switch (fd->field_type()) {
615 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
616 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
617 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
618 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
619 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
620 case T_LONG: _out->print_cr(INT64_FORMAT, mirror->long_field(fd->offset())); break;
621 case T_FLOAT: {
622 float f = mirror->float_field(fd->offset());
623 _out->print_cr("%d", *(int*)&f);
624 break;
625 }
626 case T_DOUBLE: {
627 double d = mirror->double_field(fd->offset());
628 _out->print_cr(INT64_FORMAT, *(jlong*)&d);
629 break;
630 }
631 case T_ARRAY: {
632 oop value = mirror->obj_field_acquire(fd->offset());
633 if (value == NULL) {
634 _out->print_cr("null");
635 } else {
636 typeArrayOop ta = (typeArrayOop)value;
637 _out->print("%d", ta->length());
638 if (value->is_objArray()) {
639 objArrayOop oa = (objArrayOop)value;
640 const char* klass_name = value->klass()->name()->as_quoted_ascii();
641 _out->print(" %s", klass_name);
642 }
643 _out->cr();
644 }
645 break;
646 }
647 case T_OBJECT: {
648 oop value = mirror->obj_field_acquire(fd->offset());
649 if (value == NULL) {
650 _out->print_cr("null");
651 } else if (value->is_instance()) {
652 if (value->is_a(SystemDictionary::String_klass())) {
653 _out->print("\"");
654 _out->print_raw(java_lang_String::as_quoted_ascii(value));
655 _out->print_cr("\"");
656 } else {
657 const char* klass_name = value->klass()->name()->as_quoted_ascii();
658 _out->print_cr(klass_name);
659 }
660 } else {
661 ShouldNotReachHere();
662 }
663 break;
664 }
665 default:
666 ShouldNotReachHere();
667 }
668 }
669 }
670 };
673 void ciInstanceKlass::dump_replay_data(outputStream* out) {
674 ASSERT_IN_VM;
675 ResourceMark rm;
677 InstanceKlass* ik = get_instanceKlass();
678 ConstantPool* cp = ik->constants();
680 // Try to record related loaded classes
681 Klass* sub = ik->subklass();
682 while (sub != NULL) {
683 if (sub->oop_is_instance()) {
684 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
685 }
686 sub = sub->next_sibling();
687 }
689 // Dump out the state of the constant pool tags. During replay the
690 // tags will be validated for things which shouldn't change and
691 // classes will be resolved if the tags indicate that they were
692 // resolved at compile time.
693 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
694 is_linked(), is_initialized(), cp->length());
695 for (int index = 1; index < cp->length(); index++) {
696 out->print(" %d", cp->tags()->at(index));
697 }
698 out->cr();
699 if (is_initialized()) {
700 // Dump out the static final fields in case the compilation relies
701 // on their value for correct replay.
702 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
703 ik->do_local_static_fields(&sffp);
704 }
705 }
