Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp @ 1396:d7f654633cfe
6946040: add intrinsic for short and char reverseBytes
Reviewed-by: never, twisti
Contributed-by: Hiroshi Yamauchi <yamauchi@google.com>
author | never |
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date | Mon, 26 Apr 2010 11:27:21 -0700 |
parents | 0414c1049f15 |
children | c18cbe5936b8 |
rev | line source |
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342 | 1 /* |
2 * Copyright 2001-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 /* | |
26 * This really ought to be an inline function, but apparently the C++ | |
27 * compiler sometimes sees fit to ignore inline declarations. Sigh. | |
28 */ | |
29 | |
30 // This must a ifdef'ed because the counting it controls is in a | |
31 // perf-critical inner loop. | |
32 #define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0 | |
33 | |
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34 template <class T> inline void FilterIntoCSClosure::do_oop_nv(T* p) { |
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35 T heap_oop = oopDesc::load_heap_oop(p); |
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36 if (!oopDesc::is_null(heap_oop) && |
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37 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop))) { |
342 | 38 _oc->do_oop(p); |
39 #if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT | |
40 _dcto_cl->incr_count(); | |
41 #endif | |
42 } | |
43 } | |
44 | |
45 #define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0 | |
46 | |
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47 template <class T> inline void FilterOutOfRegionClosure::do_oop_nv(T* p) { |
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48 T heap_oop = oopDesc::load_heap_oop(p); |
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49 if (!oopDesc::is_null(heap_oop)) { |
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50 HeapWord* obj_hw = (HeapWord*)oopDesc::decode_heap_oop_not_null(heap_oop); |
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51 if (obj_hw < _r_bottom || obj_hw >= _r_end) { |
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52 _oc->do_oop(p); |
342 | 53 #if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT |
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54 _out_of_region++; |
342 | 55 #endif |
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56 } |
342 | 57 } |
58 } | |
59 | |
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60 template <class T> inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) { |
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61 T heap_oop = oopDesc::load_heap_oop(p); |
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62 if (!oopDesc::is_null(heap_oop) && |
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63 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop))) |
342 | 64 _oc->do_oop(p); |
65 } | |
66 | |
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67 template <class T> inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) { |
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68 T heap_oop = oopDesc::load_heap_oop(p); |
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69 if (!oopDesc::is_null(heap_oop)) { |
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70 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); |
342 | 71 HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj); |
72 if (hr != NULL) { | |
73 if (hr->in_collection_set()) | |
74 _oc->do_oop(p); | |
75 else if (!hr->is_young()) | |
76 _cm->grayRoot(obj); | |
77 } | |
78 } | |
79 } | |
80 | |
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81 // This closure is applied to the fields of the objects that have just been copied. |
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82 template <class T> inline void G1ParScanClosure::do_oop_nv(T* p) { |
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83 T heap_oop = oopDesc::load_heap_oop(p); |
342 | 84 |
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85 if (!oopDesc::is_null(heap_oop)) { |
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86 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); |
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87 if (_g1->in_cset_fast_test(obj)) { |
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88 // We're not going to even bother checking whether the object is |
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89 // already forwarded or not, as this usually causes an immediate |
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90 // stall. We'll try to prefetch the object (for write, given that |
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91 // we might need to install the forwarding reference) and we'll |
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92 // get back to it when pop it from the queue |
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93 Prefetch::write(obj->mark_addr(), 0); |
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94 Prefetch::read(obj->mark_addr(), (HeapWordSize*2)); |
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95 |
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96 // slightly paranoid test; I'm trying to catch potential |
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97 // problems before we go into push_on_queue to know where the |
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98 // problem is coming from |
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99 assert(obj == oopDesc::load_decode_heap_oop(p), |
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100 "p should still be pointing to obj"); |
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101 _par_scan_state->push_on_queue(p); |
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102 } else { |
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103 _par_scan_state->update_rs(_from, p, _par_scan_state->queue_num()); |
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104 } |
342 | 105 } |
106 } | |
1261 | 107 |
108 template <class T> inline void G1ParPushHeapRSClosure::do_oop_nv(T* p) { | |
109 T heap_oop = oopDesc::load_heap_oop(p); | |
110 | |
111 if (!oopDesc::is_null(heap_oop)) { | |
112 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); | |
113 if (_g1->in_cset_fast_test(obj)) { | |
114 Prefetch::write(obj->mark_addr(), 0); | |
115 Prefetch::read(obj->mark_addr(), (HeapWordSize*2)); | |
116 _par_scan_state->push_on_queue(p); | |
117 } | |
118 } | |
119 } |