graal-compiler: src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp annotate

annotate src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp @ 17833:bfdf528be8e8

8038498: Fix includes and C inlining after 8035330 Summary: Change 8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure broke the debug build on AIX. The method do_oop_partial_array() is added in a header, but requires the inline function par_write_ref() through several inlined calls. In some cpp files, like arguments.cpp, par_write_ref() is not defined as the corresponding inline header and is not included. The AIX debug VM does not start because of the missing symbol. This change solves this by cleaning up include dependencies. Reviewed-by: tschatzl, stefank

author	tschatzl
date	Fri, 04 Apr 2014 10:43:56 +0200
parents	3205e78d8193
children	4ca6dc0799b6 6a0ad2977919

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 11068 diff changeset	2 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	4 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	7 * published by the Free Software Foundation.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	8 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	13 * accompanied this code).
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	14 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1317 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1317 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1317 diff changeset	21 * questions.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	22 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	23 */
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27 #include "gc_implementation/g1/heapRegion.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "gc_implementation/g1/satbQueue.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "runtime/mutexLocker.hpp"
7180 f34d701e952e 8003935: Simplify the needed includes for using Thread::current() stefank parents: 3960 diff changeset	30 #include "runtime/thread.inline.hpp"
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	31
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	32 G1SATBCardTableModRefBS::G1SATBCardTableModRefBS(MemRegion whole_heap,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33 int max_covered_regions) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	34 CardTableModRefBSForCTRS(whole_heap, max_covered_regions)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	35 {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	36 _kind = G1SATBCT;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	37 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	38
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	39
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	40 void G1SATBCardTableModRefBS::enqueue(oop pre_val) {
3249 e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error johnc parents: 1972 diff changeset	41 // Nulls should have been already filtered.
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error johnc parents: 1972 diff changeset	42 assert(pre_val->is_oop(true), "Error");
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error johnc parents: 1972 diff changeset	43
1317 d4197f8d516a 6935821: G1: threads created during marking do not active their SATB queues tonyp parents: 845 diff changeset	44 if (!JavaThread::satb_mark_queue_set().is_active()) return;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 Thread* thr = Thread::current();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	46 if (thr->is_Java_thread()) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	47 JavaThread* jt = (JavaThread*)thr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	48 jt->satb_mark_queue().enqueue(pre_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	49 } else {
11068 b30744960351 8014022: G1: Non Java threads should lock the shared SATB queue lock without safepoint checks. brutisso parents: 7180 diff changeset	50 MutexLockerEx x(Shared_SATB_Q_lock, Mutex::_no_safepoint_check_flag);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	51 JavaThread::satb_mark_queue_set().shared_satb_queue()->enqueue(pre_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	52 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	53 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	54
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	55 template <class T> void
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	56 G1SATBCardTableModRefBS::write_ref_array_pre_work(T* dst, int count) {
1317 d4197f8d516a 6935821: G1: threads created during marking do not active their SATB queues tonyp parents: 845 diff changeset	57 if (!JavaThread::satb_mark_queue_set().is_active()) return;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	58 T* elem_ptr = dst;
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	59 for (int i = 0; i < count; i++, elem_ptr++) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	60 T heap_oop = oopDesc::load_heap_oop(elem_ptr);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	61 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	62 enqueue(oopDesc::decode_heap_oop_not_null(heap_oop));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	63 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	64 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	65 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	66
12343 d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	67 bool G1SATBCardTableModRefBS::mark_card_deferred(size_t card_index) {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	68 jbyte val = _byte_map[card_index];
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	69 // It's already processed
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	70 if ((val & (clean_card_mask_val() \| deferred_card_val())) == deferred_card_val()) {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	71 return false;
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	72 }
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	73
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	74 if (val == g1_young_gen) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	75 // the card is for a young gen region. We don't need to keep track of all pointers into young
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	76 return false;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	77 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	78
12343 d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	79 // Cached bit can be installed either on a clean card or on a claimed card.
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	80 jbyte new_val = val;
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	81 if (val == clean_card_val()) {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	82 new_val = (jbyte)deferred_card_val();
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	83 } else {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	84 if (val & claimed_card_val()) {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	85 new_val = val \| (jbyte)deferred_card_val();
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	86 }
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	87 }
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	88 if (new_val != val) {
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	89 Atomic::cmpxchg(new_val, &_byte_map[card_index], val);
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	90 }
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	91 return true;
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	92 }
d55c004e1d4d 8025305: Cleanup CardTableModRefBS usage in G1 mgerdin parents: 11068 diff changeset	93
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	94 void G1SATBCardTableModRefBS::g1_mark_as_young(const MemRegion& mr) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	95 jbyte *const first = byte_for(mr.start());
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	96 jbyte *const last = byte_after(mr.last());
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	97
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	98 memset(first, g1_young_gen, last - first);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	99 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	100
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	101 #ifndef PRODUCT
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	102 void G1SATBCardTableModRefBS::verify_g1_young_region(MemRegion mr) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	103 verify_region(mr, g1_young_gen, true);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	104 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	105 #endif
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	106
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	107 G1SATBCardTableLoggingModRefBS::
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	108 G1SATBCardTableLoggingModRefBS(MemRegion whole_heap,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	109 int max_covered_regions) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	110 G1SATBCardTableModRefBS(whole_heap, max_covered_regions),
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	111 _dcqs(JavaThread::dirty_card_queue_set())
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	112 {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	113 _kind = G1SATBCTLogging;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	114 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	115
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	116 void
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	117 G1SATBCardTableLoggingModRefBS::write_ref_field_work(void* field,
14443 3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code. goetz parents: 12840 diff changeset	118 oop new_val,
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code. goetz parents: 12840 diff changeset	119 bool release) {
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	120 volatile jbyte* byte = byte_for(field);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	121 if (*byte == g1_young_gen) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	122 return;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	123 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	124 OrderAccess::storeload();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	125 if (*byte != dirty_card) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	126 *byte = dirty_card;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	127 Thread* thr = Thread::current();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	128 if (thr->is_Java_thread()) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	129 JavaThread* jt = (JavaThread*)thr;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	130 jt->dirty_card_queue().enqueue(byte);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	131 } else {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	132 MutexLockerEx x(Shared_DirtyCardQ_lock,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	133 Mutex::_no_safepoint_check_flag);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	134 _dcqs.shared_dirty_card_queue()->enqueue(byte);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	135 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	136 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	137 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	138
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139 void
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	140 G1SATBCardTableLoggingModRefBS::write_ref_field_static(void* field,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	141 oop new_val) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	142 uintptr_t field_uint = (uintptr_t)field;
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 11068 diff changeset	143 uintptr_t new_val_uint = cast_from_oop<uintptr_t>(new_val);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	144 uintptr_t comb = field_uint ^ new_val_uint;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	145 comb = comb >> HeapRegion::LogOfHRGrainBytes;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	146 if (comb == 0) return;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	147 if (new_val == NULL) return;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148 // Otherwise, log it.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149 G1SATBCardTableLoggingModRefBS* g1_bs =
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	150 (G1SATBCardTableLoggingModRefBS*)Universe::heap()->barrier_set();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	151 g1_bs->write_ref_field_work(field, new_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	152 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	153
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154 void
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	155 G1SATBCardTableLoggingModRefBS::invalidate(MemRegion mr, bool whole_heap) {
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	156 volatile jbyte* byte = byte_for(mr.start());
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	157 jbyte* last_byte = byte_for(mr.last());
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	158 Thread* thr = Thread::current();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	159 if (whole_heap) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	160 while (byte <= last_byte) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	161 *byte = dirty_card;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	162 byte++;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	163 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	164 } else {
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	165 // skip all consecutive young cards
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	166 for (; byte <= last_byte && *byte == g1_young_gen; byte++);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	167
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	168 if (byte <= last_byte) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	169 OrderAccess::storeload();
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	170 // Enqueue if necessary.
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	171 if (thr->is_Java_thread()) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	172 JavaThread* jt = (JavaThread*)thr;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	173 for (; byte <= last_byte; byte++) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	174 if (*byte == g1_young_gen) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	175 continue;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	176 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	177 if (*byte != dirty_card) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	178 *byte = dirty_card;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	179 jt->dirty_card_queue().enqueue(byte);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	180 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	181 }
12835 69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	182 } else {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	183 MutexLockerEx x(Shared_DirtyCardQ_lock,
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	184 Mutex::_no_safepoint_check_flag);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	185 for (; byte <= last_byte; byte++) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	186 if (*byte == g1_young_gen) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	187 continue;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	188 }
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	189 if (*byte != dirty_card) {
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	190 *byte = dirty_card;
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	191 _dcqs.shared_dirty_card_queue()->enqueue(byte);
69944b868a32 8014555: G1: Memory ordering problem with Conc refinement and card marking mgerdin parents: 12343 diff changeset	192 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	193 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	194 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	195 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	196 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	197 }

Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/g1/g1SATBCardTableModRefBS.cpp @ 17833:bfdf528be8e8