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Side by Side Diff: src/heap/mark-compact.cc

Issue 2010243003: Move hashmap into base/. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 6 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/heap/mark-compact.h" 5 #include "src/heap/mark-compact.h"
6 6
7 #include "src/base/atomicops.h" 7 #include "src/base/atomicops.h"
8 #include "src/base/bits.h" 8 #include "src/base/bits.h"
9 #include "src/base/sys-info.h" 9 #include "src/base/sys-info.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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1704 }; 1704 };
1705 1705
1706 class MarkCompactCollector::EvacuateNewSpaceVisitor final 1706 class MarkCompactCollector::EvacuateNewSpaceVisitor final
1707 : public MarkCompactCollector::EvacuateVisitorBase { 1707 : public MarkCompactCollector::EvacuateVisitorBase {
1708 public: 1708 public:
1709 static const intptr_t kLabSize = 4 * KB; 1709 static const intptr_t kLabSize = 4 * KB;
1710 static const intptr_t kMaxLabObjectSize = 256; 1710 static const intptr_t kMaxLabObjectSize = 256;
1711 1711
1712 explicit EvacuateNewSpaceVisitor(Heap* heap, 1712 explicit EvacuateNewSpaceVisitor(Heap* heap,
1713 CompactionSpaceCollection* compaction_spaces, 1713 CompactionSpaceCollection* compaction_spaces,
1714 HashMap* local_pretenuring_feedback) 1714 base::HashMap* local_pretenuring_feedback)
1715 : EvacuateVisitorBase(heap, compaction_spaces), 1715 : EvacuateVisitorBase(heap, compaction_spaces),
1716 buffer_(LocalAllocationBuffer::InvalidBuffer()), 1716 buffer_(LocalAllocationBuffer::InvalidBuffer()),
1717 space_to_allocate_(NEW_SPACE), 1717 space_to_allocate_(NEW_SPACE),
1718 promoted_size_(0), 1718 promoted_size_(0),
1719 semispace_copied_size_(0), 1719 semispace_copied_size_(0),
1720 local_pretenuring_feedback_(local_pretenuring_feedback) {} 1720 local_pretenuring_feedback_(local_pretenuring_feedback) {}
1721 1721
1722 inline bool Visit(HeapObject* object) override { 1722 inline bool Visit(HeapObject* object) override {
1723 heap_->UpdateAllocationSite<Heap::kCached>(object, 1723 heap_->UpdateAllocationSite<Heap::kCached>(object,
1724 local_pretenuring_feedback_); 1724 local_pretenuring_feedback_);
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1841 } 1841 }
1842 } 1842 }
1843 } 1843 }
1844 return allocation; 1844 return allocation;
1845 } 1845 }
1846 1846
1847 LocalAllocationBuffer buffer_; 1847 LocalAllocationBuffer buffer_;
1848 AllocationSpace space_to_allocate_; 1848 AllocationSpace space_to_allocate_;
1849 intptr_t promoted_size_; 1849 intptr_t promoted_size_;
1850 intptr_t semispace_copied_size_; 1850 intptr_t semispace_copied_size_;
1851 HashMap* local_pretenuring_feedback_; 1851 base::HashMap* local_pretenuring_feedback_;
1852 }; 1852 };
1853 1853
1854 class MarkCompactCollector::EvacuateNewSpacePageVisitor final 1854 class MarkCompactCollector::EvacuateNewSpacePageVisitor final
1855 : public MarkCompactCollector::HeapObjectVisitor { 1855 : public MarkCompactCollector::HeapObjectVisitor {
1856 public: 1856 public:
1857 explicit EvacuateNewSpacePageVisitor(Heap* heap) 1857 explicit EvacuateNewSpacePageVisitor(Heap* heap)
1858 : heap_(heap), promoted_size_(0) {} 1858 : heap_(heap), promoted_size_(0) {}
1859 1859
1860 static void TryMoveToOldSpace(Page* page, PagedSpace* owner) { 1860 static void TryMoveToOldSpace(Page* page, PagedSpace* owner) {
1861 if (page->heap()->new_space()->ReplaceWithEmptyPage(page)) { 1861 if (page->heap()->new_space()->ReplaceWithEmptyPage(page)) {
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3017 // evacuation. 3017 // evacuation.
3018 static int PageEvacuationThreshold() { 3018 static int PageEvacuationThreshold() {
3019 if (FLAG_page_promotion) 3019 if (FLAG_page_promotion)
3020 return FLAG_page_promotion_threshold * Page::kAllocatableMemory / 100; 3020 return FLAG_page_promotion_threshold * Page::kAllocatableMemory / 100;
3021 return Page::kAllocatableMemory + kPointerSize; 3021 return Page::kAllocatableMemory + kPointerSize;
3022 } 3022 }
3023 3023
3024 explicit Evacuator(MarkCompactCollector* collector) 3024 explicit Evacuator(MarkCompactCollector* collector)
3025 : collector_(collector), 3025 : collector_(collector),
3026 compaction_spaces_(collector->heap()), 3026 compaction_spaces_(collector->heap()),
3027 local_pretenuring_feedback_(HashMap::PointersMatch, 3027 local_pretenuring_feedback_(base::HashMap::PointersMatch,
3028 kInitialLocalPretenuringFeedbackCapacity), 3028 kInitialLocalPretenuringFeedbackCapacity),
3029 new_space_visitor_(collector->heap(), &compaction_spaces_, 3029 new_space_visitor_(collector->heap(), &compaction_spaces_,
3030 &local_pretenuring_feedback_), 3030 &local_pretenuring_feedback_),
3031 new_space_page_visitor(collector->heap()), 3031 new_space_page_visitor(collector->heap()),
3032 old_space_visitor_(collector->heap(), &compaction_spaces_), 3032 old_space_visitor_(collector->heap(), &compaction_spaces_),
3033 duration_(0.0), 3033 duration_(0.0),
3034 bytes_compacted_(0) {} 3034 bytes_compacted_(0) {}
3035 3035
3036 inline bool EvacuatePage(Page* chunk); 3036 inline bool EvacuatePage(Page* chunk);
3037 3037
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3066 bytes_compacted_ += bytes_compacted; 3066 bytes_compacted_ += bytes_compacted;
3067 } 3067 }
3068 3068
3069 template <IterationMode mode, class Visitor> 3069 template <IterationMode mode, class Visitor>
3070 inline bool EvacuateSinglePage(Page* p, Visitor* visitor); 3070 inline bool EvacuateSinglePage(Page* p, Visitor* visitor);
3071 3071
3072 MarkCompactCollector* collector_; 3072 MarkCompactCollector* collector_;
3073 3073
3074 // Locally cached collector data. 3074 // Locally cached collector data.
3075 CompactionSpaceCollection compaction_spaces_; 3075 CompactionSpaceCollection compaction_spaces_;
3076 HashMap local_pretenuring_feedback_; 3076 base::HashMap local_pretenuring_feedback_;
3077 3077
3078 // Visitors for the corresponding spaces. 3078 // Visitors for the corresponding spaces.
3079 EvacuateNewSpaceVisitor new_space_visitor_; 3079 EvacuateNewSpaceVisitor new_space_visitor_;
3080 EvacuateNewSpacePageVisitor new_space_page_visitor; 3080 EvacuateNewSpacePageVisitor new_space_page_visitor;
3081 EvacuateOldSpaceVisitor old_space_visitor_; 3081 EvacuateOldSpaceVisitor old_space_visitor_;
3082 3082
3083 // Book keeping info. 3083 // Book keeping info.
3084 double duration_; 3084 double duration_;
3085 intptr_t bytes_compacted_; 3085 intptr_t bytes_compacted_;
3086 }; 3086 };
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3941 MarkBit mark_bit = Marking::MarkBitFrom(host); 3941 MarkBit mark_bit = Marking::MarkBitFrom(host);
3942 if (Marking::IsBlack(mark_bit)) { 3942 if (Marking::IsBlack(mark_bit)) {
3943 RelocInfo rinfo(isolate(), pc, RelocInfo::CODE_TARGET, 0, host); 3943 RelocInfo rinfo(isolate(), pc, RelocInfo::CODE_TARGET, 0, host);
3944 RecordRelocSlot(host, &rinfo, target); 3944 RecordRelocSlot(host, &rinfo, target);
3945 } 3945 }
3946 } 3946 }
3947 } 3947 }
3948 3948
3949 } // namespace internal 3949 } // namespace internal
3950 } // namespace v8 3950 } // namespace v8
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