Merged: [heap] Reland: Use store buffer for writes coming from mutator.

src/heap/heap-inl.h

 // Copyright 2012 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.
 
 #ifndef V8_HEAP_HEAP_INL_H_
 #define V8_HEAP_HEAP_INL_H_
 
 #include <cmath>
 
 #include "src/base/platform/platform.h"
@@ skipping 484 matching lines @@
   Page* page = Page::FromAddress(old_address);
   Address age_mark = new_space_->age_mark();
   return page->IsFlagSet(MemoryChunk::NEW_SPACE_BELOW_AGE_MARK) &&
          (!page->ContainsLimit(age_mark) || old_address < age_mark);
 }
 
 void Heap::RecordWrite(Object* object, int offset, Object* o) {
   if (!InNewSpace(o) || !object->IsHeapObject() || InNewSpace(object)) {
     return;
   }
-  RememberedSet<OLD_TO_NEW>::Insert(
-      Page::FromAddress(reinterpret_cast<Address>(object)),
-      HeapObject::cast(object)->address() + offset);
+  store_buffer()->InsertEntry(HeapObject::cast(object)->address() + offset);
 }
 
 void Heap::RecordWriteIntoCode(Code* host, RelocInfo* rinfo, Object* value) {
   if (InNewSpace(value)) {
     RecordWriteIntoCodeSlow(host, rinfo, value);
   }
 }
 
 void Heap::RecordFixedArrayElements(FixedArray* array, int offset, int length) {
   if (InNewSpace(array)) return;
-  Page* page = Page::FromAddress(reinterpret_cast<Address>(array));
   for (int i = 0; i < length; i++) {
     if (!InNewSpace(array->get(offset + i))) continue;
-    RememberedSet<OLD_TO_NEW>::Insert(
-        page,
+    store_buffer()->InsertEntry(
         reinterpret_cast<Address>(array->RawFieldOfElementAt(offset + i)));
   }
 }
 
 Address* Heap::store_buffer_top_address() {
   return store_buffer()->top_address();
 }
 
 bool Heap::AllowedToBeMigrated(HeapObject* obj, AllocationSpace dst) {
   // Object migration is governed by the following rules:
@@ skipping 317 matching lines @@
 
 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
     CHECK((*current)->IsSmi());
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_INL_H_