Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/d8-worker-sharedarraybuffer.js b/test/mjsunit/d8-worker-sharedarraybuffer.js
new file mode 100644
index 0000000..3fe9fdd
--- /dev/null
+++ b/test/mjsunit/d8-worker-sharedarraybuffer.js
@@ -0,0 +1,106 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-sharedarraybuffer
+
+if (this.Worker) {
+
+ (function TestTransfer() {
+ var workerScript =
+ `onmessage = function(m) {
+ var sab = m;
+ var ta = new Uint32Array(sab);
+ if (sab.byteLength !== 16) {
+ throw new Error('SharedArrayBuffer transfer byteLength');
+ }
+ for (var i = 0; i < 4; ++i) {
+ if (ta[i] !== i) {
+ throw new Error('SharedArrayBuffer transfer value ' + i);
+ }
+ }
+ // Atomically update ta[0]
+ Atomics.store(ta, 0, 100);
+ };`;
+
+ var w = new Worker(workerScript);
+
+ var sab = new SharedArrayBuffer(16);
+ var ta = new Uint32Array(sab);
+ for (var i = 0; i < 4; ++i) {
+ ta[i] = i;
+ }
+
+ // Transfer SharedArrayBuffer
+ w.postMessage(sab, [sab]);
+ assertEquals(16, sab.byteLength); // ArrayBuffer should not be neutered.
+
+ // Spinwait for the worker to update ta[0]
+ var ta0;
+ while ((ta0 = Atomics.load(ta, 0)) == 0) {}
+
+ assertEquals(100, ta0);
+
+ w.terminate();
+
+ assertEquals(16, sab.byteLength); // Still not neutered.
+ })();
+
+ (function TestTransferMulti() {
+ var workerScript =
+ `onmessage = function(msg) {
+ var sab = msg.sab;
+ var id = msg.id;
+ var ta = new Uint32Array(sab);
+ Atomics.store(ta, id, 1);
+ postMessage(id);
+ };`;
+
+ var sab = new SharedArrayBuffer(16);
+ var ta = new Uint32Array(sab);
+
+ var id;
+ var workers = [];
+ for (id = 0; id < 4; ++id) {
+ workers[id] = new Worker(workerScript);
+ workers[id].postMessage({sab: sab, id: id}, [sab]);
+ }
+
+ // Spinwait for each worker to update ta[id]
+ var count = 0;
+ while (count < 4) {
+ for (id = 0; id < 4; ++id) {
+ if (Atomics.compareExchange(ta, id, 1, -1) == 1) {
+ // Worker is finished.
+ assertEquals(id, workers[id].getMessage());
+ workers[id].terminate();
+ count++;
+ }
+ }
+ }
+ })();
+
+}