Upload Kmake

deps/v8/test/mjsunit/regress/regress-1212404.js

@@ -0,0 +1,19 @@
+// Copyright 2021 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.
+
+const barrier_arr = new Int32Array(new SharedArrayBuffer(4));
+function onmessage({data:[data_arr, barrier_arr]}) {
+  Atomics.store(barrier_arr, 0, 1);
+  for (let nr = 1; nr < 1000; ++nr) {
+    for (let idx = 0; idx < data_arr.length; ++idx) {
+      data_arr[idx] = nr;
+    }
+  }
+}
+
+const worker = new Worker(`onmessage = ${onmessage}`, {type: 'string'});
+const data_arr = new Int32Array(new SharedArrayBuffer(1024));
+worker.postMessage([data_arr, barrier_arr]);
+while (Atomics.load(barrier_arr) == 0) { }
+data_arr.reverse();