Line data    Source code

       1             : // Copyright 2016 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #include <stdlib.h>
       6             : 
       7             : #include "src/globals.h"
       8             : #include "src/heap/marking.h"
       9             : #include "test/unittests/heap/bitmap-test-utils.h"
      10             : #include "testing/gtest/include/gtest/gtest.h"
      11             : 
      12             : namespace v8 {
      13             : namespace internal {
      14             : 
      15             : template <typename T>
      16             : using MarkingTest = TestWithBitmap<T>;
      17             : 
      18             : TYPED_TEST_SUITE(MarkingTest, BitmapTypes);
      19             : 
      20       12338 : TYPED_TEST(MarkingTest, TransitionWhiteBlackWhite) {
      21             :   auto bitmap = this->bitmap();
      22             :   const int kLocationsSize = 3;
      23             :   int position[kLocationsSize] = {
      24           2 :       Bitmap::kBitsPerCell - 2, Bitmap::kBitsPerCell - 1, Bitmap::kBitsPerCell};
      25          14 :   for (int i = 0; i < kLocationsSize; i++) {
      26           6 :     MarkBit mark_bit = bitmap->MarkBitFromIndex(position[i]);
      27           6 :     CHECK(Marking::IsWhite(mark_bit));
      28           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      29             :     Marking::WhiteToBlack<AccessMode::NON_ATOMIC>(mark_bit);
      30           6 :     CHECK(Marking::IsBlack(mark_bit));
      31           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      32             :     Marking::MarkWhite(mark_bit);
      33           6 :     CHECK(Marking::IsWhite(mark_bit));
      34           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      35             :   }
      36           2 : }
      37             : 
      38       12338 : TYPED_TEST(MarkingTest, TransitionWhiteGreyBlack) {
      39             :   auto bitmap = this->bitmap();
      40             :   const int kLocationsSize = 3;
      41             :   int position[kLocationsSize] = {
      42           2 :       Bitmap::kBitsPerCell - 2, Bitmap::kBitsPerCell - 1, Bitmap::kBitsPerCell};
      43          14 :   for (int i = 0; i < kLocationsSize; i++) {
      44           6 :     MarkBit mark_bit = bitmap->MarkBitFromIndex(position[i]);
      45           6 :     CHECK(Marking::IsWhite(mark_bit));
      46           6 :     CHECK(!Marking::IsBlackOrGrey(mark_bit));
      47           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      48             :     Marking::WhiteToGrey<AccessMode::NON_ATOMIC>(mark_bit);
      49           6 :     CHECK(Marking::IsGrey(mark_bit));
      50           6 :     CHECK(Marking::IsBlackOrGrey(mark_bit));
      51           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      52             :     Marking::GreyToBlack<AccessMode::NON_ATOMIC>(mark_bit);
      53           6 :     CHECK(Marking::IsBlack(mark_bit));
      54           6 :     CHECK(Marking::IsBlackOrGrey(mark_bit));
      55           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      56             :     Marking::MarkWhite(mark_bit);
      57           6 :     CHECK(Marking::IsWhite(mark_bit));
      58           6 :     CHECK(!Marking::IsImpossible(mark_bit));
      59             :   }
      60           2 : }
      61             : 
      62             : }  // namespace internal
      63        9249 : }  // namespace v8