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annotate src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp @ 10185:d50cc62e94ff

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8012715: G1: GraphKit accesses PtrQueue::_index as int but is size_t Summary: In graphKit INT operations were generated to access PtrQueue::_index which has type size_t. This is 64 bit on 64-bit machines. No problems occur on little endian machines as long as the index fits into 32 bit, but on big endian machines the upper part is read, which is zero. This leads to unnecessary branches to the slow path in the runtime. Reviewed-by: twisti, johnc Contributed-by: Martin Doerr <martin.doerr@sap.com>
author johnc
date Wed, 24 Apr 2013 14:48:43 -0700
parents 454d7cc622ab
children f6490a5f084a
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1 /*
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2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP
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27
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28 #define VM_STRUCTS_CMS(nonstatic_field, \
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29 volatile_nonstatic_field, \
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30 static_field) \
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31 nonstatic_field(CompactibleFreeListSpace, _collector, CMSCollector*) \
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32 nonstatic_field(CompactibleFreeListSpace, _bt, BlockOffsetArrayNonContigSpace) \
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33 \
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34 nonstatic_field(CMSBitMap, _bmWordSize, size_t) \
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35 nonstatic_field(CMSBitMap, _shifter, const int) \
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36 nonstatic_field(CMSBitMap, _bm, BitMap) \
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37 nonstatic_field(CMSBitMap, _virtual_space, VirtualSpace) \
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38 nonstatic_field(CMSCollector, _markBitMap, CMSBitMap) \
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39 nonstatic_field(ConcurrentMarkSweepGeneration, _cmsSpace, CompactibleFreeListSpace*) \
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40 static_field(ConcurrentMarkSweepThread, _collector, CMSCollector*) \
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41 nonstatic_field(LinearAllocBlock, _word_size, size_t) \
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42 nonstatic_field(AFLBinaryTreeDictionary, _total_size, size_t) \
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43 nonstatic_field(CompactibleFreeListSpace, _dictionary, AFLBinaryTreeDictionary*) \
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44 nonstatic_field(CompactibleFreeListSpace, _indexedFreeList[0], FreeList<FreeChunk>) \
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45 nonstatic_field(CompactibleFreeListSpace, _smallLinearAllocBlock, LinearAllocBlock)
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48 #define VM_TYPES_CMS(declare_type, \
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49 declare_toplevel_type) \
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50 \
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51 declare_type(ConcurrentMarkSweepGeneration,CardGeneration) \
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52 declare_type(CompactibleFreeListSpace, CompactibleSpace) \
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53 declare_type(ConcurrentMarkSweepThread, NamedThread) \
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54 declare_type(SurrogateLockerThread, JavaThread) \
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55 declare_toplevel_type(CMSCollector) \
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56 declare_toplevel_type(CMSBitMap) \
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57 declare_toplevel_type(FreeChunk) \
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58 declare_toplevel_type(Metablock) \
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59 declare_toplevel_type(ConcurrentMarkSweepThread*) \
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60 declare_toplevel_type(ConcurrentMarkSweepGeneration*) \
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61 declare_toplevel_type(SurrogateLockerThread*) \
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62 declare_toplevel_type(CompactibleFreeListSpace*) \
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63 declare_toplevel_type(CMSCollector*) \
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64 declare_toplevel_type(AFLBinaryTreeDictionary) \
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65 declare_toplevel_type(LinearAllocBlock) \
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66 declare_toplevel_type(FreeBlockDictionary<FreeChunk>)
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68 #define VM_INT_CONSTANTS_CMS(declare_constant) \
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69 declare_constant(Generation::ConcurrentMarkSweep) \
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71 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP