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Unified Diff: third_party/WebKit/Source/platform/heap/HeapPage.cpp

Issue 1395493008: Revert of Oilpan: always shrink tail-allocated backing storage. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 2 months ago
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Index: third_party/WebKit/Source/platform/heap/HeapPage.cpp
diff --git a/third_party/WebKit/Source/platform/heap/HeapPage.cpp b/third_party/WebKit/Source/platform/heap/HeapPage.cpp
index 78c725e28e60dc581876d7ae0138289d312712a3..a94679f4db7bb3e4aeff837b82613f731354300c 100644
--- a/third_party/WebKit/Source/platform/heap/HeapPage.cpp
+++ b/third_party/WebKit/Source/platform/heap/HeapPage.cpp
@@ -699,7 +699,7 @@
size_t allocationSize = Heap::allocationSizeFromSize(newSize);
ASSERT(allocationSize > header->size());
size_t expandSize = allocationSize - header->size();
- if (isObjectAllocatedAtAllocationPoint(header) && expandSize <= m_remainingAllocationSize) {
+ if (header->payloadEnd() == m_currentAllocationPoint && expandSize <= m_remainingAllocationSize) {
m_currentAllocationPoint += expandSize;
m_remainingAllocationSize -= expandSize;
@@ -719,7 +719,7 @@
size_t allocationSize = Heap::allocationSizeFromSize(newSize);
ASSERT(header->size() > allocationSize);
size_t shrinkSize = header->size() - allocationSize;
- if (isObjectAllocatedAtAllocationPoint(header)) {
+ if (header->payloadEnd() == m_currentAllocationPoint) {
m_currentAllocationPoint -= shrinkSize;
m_remainingAllocationSize += shrinkSize;
SET_MEMORY_INACCESSIBLE(m_currentAllocationPoint, shrinkSize);
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