graal-jvmci-8: src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp annotate

annotate src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp @ 845:df6caf649ff7

6700789: G1: Enable use of compressed oops with G1 heaps Summary: Modifications to G1 so as to allow the use of compressed oops. Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp

author	ysr
date	Tue, 14 Jul 2009 15:40:39 -0700
parents	37f87013dfd8
children	0414c1049f15

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	2 * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved.
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 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	20 * CA 95054 USA or visit www.sun.com if you need additional information or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	21 * have any questions.
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
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	25 /*
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	26 * This really ought to be an inline function, but apparently the C++
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	27 * compiler sometimes sees fit to ignore inline declarations. Sigh.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	28 */
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	29
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	30 // This must a ifdef'ed because the counting it controls is in a
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	31 // perf-critical inner loop.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	32 #define FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT 0
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	34 template <class T> inline void FilterIntoCSClosure::do_oop_nv(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	35 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	36 if (!oopDesc::is_null(heap_oop) &&
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	37 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop))) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	38 _oc->do_oop(p);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	39 #if FILTERINTOCSCLOSURE_DOHISTOGRAMCOUNT
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	40 _dcto_cl->incr_count();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	41 #endif
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	42 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	43 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	44
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 #define FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT 0
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	46
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	47 template <class T> inline void FilterOutOfRegionClosure::do_oop_nv(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	48 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	49 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	50 HeapWord* obj_hw = (HeapWord*)oopDesc::decode_heap_oop_not_null(heap_oop);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	51 if (obj_hw < _r_bottom \|\| obj_hw >= _r_end) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	52 _oc->do_oop(p);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	53 #if FILTEROUTOFREGIONCLOSURE_DOHISTOGRAMCOUNT
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	54 _out_of_region++;
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	55 #endif
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	56 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	57 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	58 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	60 template <class T> inline void FilterInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	61 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	62 if (!oopDesc::is_null(heap_oop) &&
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	63 _g1->obj_in_cs(oopDesc::decode_heap_oop_not_null(heap_oop)))
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	64 _oc->do_oop(p);
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
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	67 template <class T> inline void FilterAndMarkInHeapRegionAndIntoCSClosure::do_oop_nv(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	68 T heap_oop = oopDesc::load_heap_oop(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	69 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	70 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	71 HeapRegion* hr = _g1->heap_region_containing((HeapWord*) obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	72 if (hr != NULL) {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	73 if (hr->in_collection_set())
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	74 _oc->do_oop(p);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	75 else if (!hr->is_young())
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	76 _cm->grayRoot(obj);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	77 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	78 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	79 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	80
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	81 // This closure is applied to the fields of the objects that have just been copied.
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	82 template <class T> inline void G1ParScanClosure::do_oop_nv(T* p) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	83 T heap_oop = oopDesc::load_heap_oop(p);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	84
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	85 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	86 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	87 if (_g1->in_cset_fast_test(obj)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	88 // We're not going to even bother checking whether the object is
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	89 // already forwarded or not, as this usually causes an immediate
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	90 // stall. We'll try to prefetch the object (for write, given that
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	91 // we might need to install the forwarding reference) and we'll
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	92 // get back to it when pop it from the queue
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	93 Prefetch::write(obj->mark_addr(), 0);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	94 Prefetch::read(obj->mark_addr(), (HeapWordSize*2));
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	95
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	96 // slightly paranoid test; I'm trying to catch potential
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	97 // problems before we go into push_on_queue to know where the
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	98 // problem is coming from
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	99 assert(obj == oopDesc::load_decode_heap_oop(p),
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	100 "p should still be pointing to obj");
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	101 _par_scan_state->push_on_queue(p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	102 } else {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	103 _par_scan_state->update_rs(_from, p, _par_scan_state->queue_num());
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 342 diff changeset	104 }
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	105 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	106 }

Mercurial > hg > graal-jvmci-8

annotate src/share/vm/gc_implementation/g1/g1OopClosures.inline.hpp @ 845:df6caf649ff7