5e31f9ffdf
Change-Id: Ieec4dccdf8a5241f439bde9fffc75f4f300930e1 Reviewed-on: https://chromium-review.googlesource.com/1089333 Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#53567}
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/heap/heap-inl.h"
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#include "src/heap/spaces-inl.h"
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#include "src/isolate.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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typedef TestWithIsolate SpacesTest;
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TEST_F(SpacesTest, CompactionSpaceMerge) {
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Heap* heap = i_isolate()->heap();
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OldSpace* old_space = heap->old_space();
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EXPECT_TRUE(old_space != NULL);
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CompactionSpace* compaction_space =
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new CompactionSpace(heap, OLD_SPACE, NOT_EXECUTABLE);
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EXPECT_TRUE(compaction_space != NULL);
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for (Page* p : *old_space) {
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// Unlink free lists from the main space to avoid reusing the memory for
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// compaction spaces.
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old_space->UnlinkFreeListCategories(p);
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}
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// Cannot loop until "Available()" since we initially have 0 bytes available
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// and would thus neither grow, nor be able to allocate an object.
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const int kNumObjects = 10;
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const int kNumObjectsPerPage =
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compaction_space->AreaSize() / kMaxRegularHeapObjectSize;
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const int kExpectedPages =
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(kNumObjects + kNumObjectsPerPage - 1) / kNumObjectsPerPage;
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for (int i = 0; i < kNumObjects; i++) {
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HeapObject* object =
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compaction_space->AllocateRawUnaligned(kMaxRegularHeapObjectSize)
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.ToObjectChecked();
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heap->CreateFillerObjectAt(object->address(), kMaxRegularHeapObjectSize,
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ClearRecordedSlots::kNo);
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}
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int pages_in_old_space = old_space->CountTotalPages();
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int pages_in_compaction_space = compaction_space->CountTotalPages();
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EXPECT_EQ(kExpectedPages, pages_in_compaction_space);
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old_space->MergeCompactionSpace(compaction_space);
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EXPECT_EQ(pages_in_old_space + pages_in_compaction_space,
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old_space->CountTotalPages());
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delete compaction_space;
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}
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} // namespace internal
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} // namespace v8
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