1 files changed, 21 insertions, 0 deletions
diff --git a/deps/v8/test/cctest/test-usecounters.cc b/deps/v8/test/cctest/test-usecounters.cc
index 5e37991252..4c6c72a28d 100644
--- a/deps/v8/test/cctest/test-usecounters.cc
+++ b/deps/v8/test/cctest/test-usecounters.cc
@@ -60,6 +60,27 @@ TEST(AssigmentExpressionLHSIsCall) {
   use_counts[v8::Isolate::kAssigmentExpressionLHSIsCallInStrict] = 0;
 }
 
+TEST(AtomicsWakeAndAtomicsNotify) {
+  v8::Isolate* isolate = CcTest::isolate();
+  v8::HandleScope scope(isolate);
+  LocalContext env;
+  int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
+  global_use_counts = use_counts;
+  i::FLAG_harmony_sharedarraybuffer = true;
+  CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
+
+  CompileRun("Atomics.wake(new Int32Array(new SharedArrayBuffer(16)), 0);");
+  CHECK_EQ(1, use_counts[v8::Isolate::kAtomicsWake]);
+  CHECK_EQ(0, use_counts[v8::Isolate::kAtomicsNotify]);
+
+  use_counts[v8::Isolate::kAtomicsWake] = 0;
+  use_counts[v8::Isolate::kAtomicsNotify] = 0;
+
+  CompileRun("Atomics.notify(new Int32Array(new SharedArrayBuffer(16)), 0);");
+  CHECK_EQ(0, use_counts[v8::Isolate::kAtomicsWake]);
+  CHECK_EQ(1, use_counts[v8::Isolate::kAtomicsNotify]);
+}
+
 }  // namespace test_usecounters
 }  // namespace internal
 }  // namespace v8