1 files changed, 42 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/shared-memory/non-instance-prototype.js b/deps/v8/test/mjsunit/shared-memory/non-instance-prototype.js
new file mode 100644
index 0000000000..e4cef06120
--- /dev/null
+++ b/deps/v8/test/mjsunit/shared-memory/non-instance-prototype.js
@@ -0,0 +1,42 @@
+// Copyright 2023 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.
+//
+// Flags: --harmony-struct --allow-natives-syntax
+
+function Foo() {}
+
+function TestInstanceOfMutex() {
+  Foo instanceof Atomics.Mutex;
+}
+function TestInstanceOfCondition() {
+  Foo instanceof Atomics.Condition;
+}
+function TestInstanceOfSharedArray() {
+  Foo instanceof SharedArray;
+}
+function TestInstanceOfSharedStruct() {
+  Foo instanceof (new SharedStructType(["foo"]));
+}
+
+%PrepareFunctionForOptimization(TestInstanceOfMutex);
+%PrepareFunctionForOptimization(TestInstanceOfCondition);
+%PrepareFunctionForOptimization(TestInstanceOfSharedArray);
+%PrepareFunctionForOptimization(TestInstanceOfSharedStruct);
+
+for (let i = 0; i < 10; i++) {
+  assertThrows(TestInstanceOfMutex, TypeError);
+  assertThrows(TestInstanceOfCondition, TypeError);
+  assertThrows(TestInstanceOfSharedArray, TypeError);
+  assertThrows(TestInstanceOfSharedStruct, TypeError);
+}
+
+%OptimizeFunctionOnNextCall(TestInstanceOfMutex);
+%OptimizeFunctionOnNextCall(TestInstanceOfCondition);
+%OptimizeFunctionOnNextCall(TestInstanceOfSharedArray);
+%OptimizeFunctionOnNextCall(TestInstanceOfSharedStruct);
+
+assertThrows(TestInstanceOfMutex, TypeError);
+assertThrows(TestInstanceOfCondition, TypeError);
+assertThrows(TestInstanceOfSharedArray, TypeError);
+assertThrows(TestInstanceOfSharedStruct, TypeError);