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

src/objects-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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 2582 matching lines @@
   return kWordAligned;
 }
 
 
 void FixedArray::set(int index,
                      Object* value,
                      WriteBarrierMode mode) {
   DCHECK(map() != GetHeap()->fixed_cow_array_map());
   DCHECK(index >= 0 && index < this->length());
   int offset = kHeaderSize + index * kPointerSize;
-  WRITE_FIELD(this, offset, value);
+  NOBARRIER_WRITE_FIELD(this, offset, value);
   CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, value, mode);
 }
 
 
 void FixedArray::NoWriteBarrierSet(FixedArray* array,
                                    int index,
                                    Object* value) {
   DCHECK(array->map() != array->GetHeap()->fixed_cow_array_map());
   DCHECK(index >= 0 && index < array->length());
   DCHECK(!array->GetHeap()->InNewSpace(value));
-  WRITE_FIELD(array, kHeaderSize + index * kPointerSize, value);
+  NOBARRIER_WRITE_FIELD(array, kHeaderSize + index * kPointerSize, value);
 }
 
 
 void FixedArray::set_undefined(int index) {
   DCHECK(map() != GetHeap()->fixed_cow_array_map());
   DCHECK(index >= 0 && index < this->length());
   DCHECK(!GetHeap()->InNewSpace(GetHeap()->undefined_value()));
   WRITE_FIELD(this,
               kHeaderSize + index * kPointerSize,
               GetHeap()->undefined_value());
@@ skipping 5815 matching lines @@
 #undef WRITE_INT64_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_INL_H_