Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/parallelScavenge/vmPSOperations.cpp @ 21598:05ecef0a6a24
LinearScanLifetimeAnalysisPhase: special case StackStoreOp.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Thu, 28 May 2015 13:07:25 +0200 |
parents | 4bfc44ba0d19 |
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0 | 1 /* |
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2 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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12 * version 2 for more details (a copy is included in the LICENSE file that | |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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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. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp" | |
27 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp" | |
28 #include "gc_implementation/parallelScavenge/psScavenge.hpp" | |
29 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
30 #include "gc_implementation/parallelScavenge/vmPSOperations.hpp" | |
31 #include "memory/gcLocker.inline.hpp" | |
32 #include "utilities/dtrace.hpp" | |
0 | 33 |
34 // The following methods are used by the parallel scavenge collector | |
35 VM_ParallelGCFailedAllocation::VM_ParallelGCFailedAllocation(size_t size, | |
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36 unsigned int gc_count) : |
2225 | 37 VM_GC_Operation(gc_count, GCCause::_allocation_failure), |
0 | 38 _size(size), |
39 _result(NULL) | |
40 { | |
41 } | |
42 | |
43 void VM_ParallelGCFailedAllocation::doit() { | |
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44 SvcGCMarker sgcm(SvcGCMarker::MINOR); |
0 | 45 |
46 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
47 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "must be a ParallelScavengeHeap"); | |
48 | |
49 GCCauseSetter gccs(heap, _gc_cause); | |
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50 _result = heap->failed_mem_allocate(_size); |
0 | 51 |
52 if (_result == NULL && GC_locker::is_active_and_needs_gc()) { | |
53 set_gc_locked(); | |
54 } | |
55 } | |
56 | |
57 // Only used for System.gc() calls | |
58 VM_ParallelGCSystemGC::VM_ParallelGCSystemGC(unsigned int gc_count, | |
59 unsigned int full_gc_count, | |
60 GCCause::Cause gc_cause) : | |
2225 | 61 VM_GC_Operation(gc_count, gc_cause, full_gc_count, true /* full */) |
0 | 62 { |
63 } | |
64 | |
65 void VM_ParallelGCSystemGC::doit() { | |
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66 SvcGCMarker sgcm(SvcGCMarker::FULL); |
0 | 67 |
68 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); | |
69 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, | |
70 "must be a ParallelScavengeHeap"); | |
71 | |
72 GCCauseSetter gccs(heap, _gc_cause); | |
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73 if (_gc_cause == GCCause::_gc_locker || _gc_cause == GCCause::_wb_young_gc |
0 | 74 DEBUG_ONLY(|| _gc_cause == GCCause::_scavenge_alot)) { |
75 // If (and only if) the scavenge fails, this will invoke a full gc. | |
76 heap->invoke_scavenge(); | |
77 } else { | |
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78 heap->do_full_collection(false); |
0 | 79 } |
80 } |