51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
|
// Copyright 2017 the V8 project authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#include "src/heap/heap-inl.h"
|
||
|
|
#include "src/heap/spaces-inl.h"
|
||
|
|
#include "src/isolate.h"
|
||
|
|
#include "test/unittests/test-utils.h"
|
||
|
|
|
||
|
|
namespace v8 {
|
||
|
|
namespace internal {
|
||
|
|
|
||
|
|
typedef TestWithIsolate SpacesTest;
|
||
|
|
|
||
|
|
TEST_F(SpacesTest, CompactionSpaceMerge) {
|
||
|
|
Heap* heap = i_isolate()->heap();
|
||
|
|
OldSpace* old_space = heap->old_space();
|
||
|
|
EXPECT_TRUE(old_space != NULL);
|
||
|
|
|
||
|
|
CompactionSpace* compaction_space =
|
||
|
|
new CompactionSpace(heap, OLD_SPACE, NOT_EXECUTABLE);
|
||
|
|
EXPECT_TRUE(compaction_space != NULL);
|
||
|
|
EXPECT_TRUE(compaction_space->SetUp());
|
||
|
|
|
||
|
|
// Cannot loop until "Available()" since we initially have 0 bytes available
|
||
|
|
// and would thus neither grow, nor be able to allocate an object.
|
||
|
|
const int kNumObjects = 10;
|
||
|
|
const int kNumObjectsPerPage =
|
||
|
|
compaction_space->AreaSize() / kMaxRegularHeapObjectSize;
|
||
|
|
const int kExpectedPages =
|
||
|
|
(kNumObjects + kNumObjectsPerPage - 1) / kNumObjectsPerPage;
|
||
|
|
for (int i = 0; i < kNumObjects; i++) {
|
||
|
|
HeapObject* object =
|
||
|
|
compaction_space->AllocateRawUnaligned(kMaxRegularHeapObjectSize)
|
||
|
|
.ToObjectChecked();
|
||
|
|
heap->CreateFillerObjectAt(object->address(), kMaxRegularHeapObjectSize,
|
||
|
|
ClearRecordedSlots::kNo);
|
||
|
|
}
|
||
|
|
int pages_in_old_space = old_space->CountTotalPages();
|
||
|
|
int pages_in_compaction_space = compaction_space->CountTotalPages();
|
||
|
|
EXPECT_EQ(kExpectedPages, pages_in_compaction_space);
|
||
|
|
old_space->MergeCompactionSpace(compaction_space);
|
||
|
|
EXPECT_EQ(pages_in_old_space + pages_in_compaction_space,
|
||
|
|
old_space->CountTotalPages());
|
||
|
|
|
||
|
|
delete compaction_space;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace internal
|
||
|
|
} // namespace v8
|