[heap] Add atomics to mark bit operations.

test/unittests/heap/marking-unittest.cc

 // Copyright 2016 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 <stdlib.h>
 
 #include "src/globals.h"
 #include "src/heap/marking.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
 namespace internal {
 
 
 TEST(Marking, TransitionWhiteBlackWhite) {
   Bitmap* bitmap = reinterpret_cast<Bitmap*>(
       calloc(Bitmap::kSize / kPointerSize, kPointerSize));
   const int kLocationsSize = 3;
   int position[kLocationsSize] = {
       Bitmap::kBitsPerCell - 2, Bitmap::kBitsPerCell - 1, Bitmap::kBitsPerCell};
   for (int i = 0; i < kLocationsSize; i++) {
     MarkBit mark_bit = bitmap->MarkBitFromIndex(position[i]);
     CHECK(Marking::IsWhite(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::WhiteToBlack(mark_bit);
+    Marking::WhiteToBlack<MarkBit::NON_ATOMIC>(mark_bit);
     CHECK(Marking::IsBlack(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
     Marking::MarkWhite(mark_bit);
     CHECK(Marking::IsWhite(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
   }
   free(bitmap);
 }
 
 TEST(Marking, TransitionWhiteGreyBlackGrey) {
   Bitmap* bitmap = reinterpret_cast<Bitmap*>(
       calloc(Bitmap::kSize / kPointerSize, kPointerSize));
   const int kLocationsSize = 3;
   int position[kLocationsSize] = {
       Bitmap::kBitsPerCell - 2, Bitmap::kBitsPerCell - 1, Bitmap::kBitsPerCell};
   for (int i = 0; i < kLocationsSize; i++) {
     MarkBit mark_bit = bitmap->MarkBitFromIndex(position[i]);
     CHECK(Marking::IsWhite(mark_bit));
     CHECK(!Marking::IsBlackOrGrey(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::WhiteToGrey(mark_bit);
+    Marking::WhiteToGrey<MarkBit::NON_ATOMIC>(mark_bit);
     CHECK(Marking::IsGrey(mark_bit));
     CHECK(Marking::IsBlackOrGrey(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
-    Marking::GreyToBlack(mark_bit);
+    Marking::GreyToBlack<MarkBit::NON_ATOMIC>(mark_bit);
     CHECK(Marking::IsBlack(mark_bit));
     CHECK(Marking::IsBlackOrGrey(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
     Marking::BlackToGrey(mark_bit);
     CHECK(Marking::IsGrey(mark_bit));
     CHECK(Marking::IsBlackOrGrey(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
     Marking::MarkWhite(mark_bit);
     CHECK(Marking::IsWhite(mark_bit));
     CHECK(!Marking::IsImpossible(mark_bit));
@@ skipping 42 matching lines @@
       Bitmap::kBitsPerCell, Bitmap::kBitsPerCell + Bitmap::kBitsPerCell / 2));
   CHECK_EQ(reinterpret_cast<uint32_t*>(bitmap)[2], 0xff00ffu);
   CHECK(bitmap->AllBitsSetInRange(2 * Bitmap::kBitsPerCell,
                                   2 * Bitmap::kBitsPerCell + 8));
   CHECK(bitmap->AllBitsClearInRange(2 * Bitmap::kBitsPerCell + 24,
                                     Bitmap::kBitsPerCell * 3));
   free(bitmap);
 }
 }  // namespace internal
 }  // namespace v8