Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/regress/regress-typedarray-length.js b/test/mjsunit/regress/regress-typedarray-length.js
new file mode 100644
index 0000000..a0b9998
--- /dev/null
+++ b/test/mjsunit/regress/regress-typedarray-length.js
@@ -0,0 +1,149 @@
+// Copyright 2015 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: --allow-natives-syntax
+
+var a = new Int32Array(100);
+a.__proto__ = null;
+
+function get(a) {
+ return a.length;
+}
+
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(undefined, get(a));
+
+get = function(a) {
+ return a.byteLength;
+}
+
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(undefined, get(a));
+
+get = function(a) {
+ return a.byteOffset;
+}
+
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+assertEquals(undefined, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(undefined, get(a));
+
+(function() {
+ "use strict";
+
+ class MyTypedArray extends Int32Array {
+ get length() {
+ return "length";
+ }
+ }
+
+ a = new MyTypedArray();
+
+ get = function(a) {
+ return a.length;
+ }
+
+ assertEquals("length", get(a));
+ assertEquals("length", get(a));
+ assertEquals("length", get(a));
+ %OptimizeFunctionOnNextCall(get);
+ assertEquals("length", get(a));
+
+ a.__proto__ = null;
+
+ get = function(a) {
+ return a.length;
+ }
+
+ assertEquals(undefined, get(a));
+ assertEquals(undefined, get(a));
+ assertEquals(undefined, get(a));
+ %OptimizeFunctionOnNextCall(get);
+ assertEquals(undefined, get(a));
+})();
+
+(function() {
+ "use strict";
+
+ class MyTypedArray extends Int32Array {
+ constructor(length) {
+ super(length);
+ }
+ }
+
+ a = new MyTypedArray(1024);
+
+ get = function(a) {
+ return a.length;
+ }
+
+ assertEquals(1024, get(a));
+ assertEquals(1024, get(a));
+ assertEquals(1024, get(a));
+ %OptimizeFunctionOnNextCall(get);
+ assertEquals(1024, get(a));
+})();
+
+(function() {
+ "use strict";
+ var a = new Uint8Array(4);
+ Object.defineProperty(a, "length", {get: function() { return "blah"; }});
+ get = function(a) {
+ return a.length;
+ }
+
+ assertEquals("blah", get(a));
+ assertEquals("blah", get(a));
+ assertEquals("blah", get(a));
+ %OptimizeFunctionOnNextCall(get);
+ assertEquals("blah", get(a));
+})();
+
+// Ensure we cannot delete length, byteOffset, byteLength.
+assertTrue(Int32Array.prototype.__proto__.hasOwnProperty("length"));
+assertTrue(Int32Array.prototype.__proto__.hasOwnProperty("byteOffset"));
+assertTrue(Int32Array.prototype.__proto__.hasOwnProperty("byteLength"));
+assertFalse(delete Int32Array.prototype.__proto__.length);
+assertFalse(delete Int32Array.prototype.__proto__.byteOffset);
+assertFalse(delete Int32Array.prototype.__proto__.byteLength);
+
+a = new Int32Array(100);
+
+get = function(a) {
+ return a.length;
+}
+
+assertEquals(100, get(a));
+assertEquals(100, get(a));
+assertEquals(100, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(100, get(a));
+
+get = function(a) {
+ return a.byteLength;
+}
+
+assertEquals(400, get(a));
+assertEquals(400, get(a));
+assertEquals(400, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(400, get(a));
+
+get = function(a) {
+ return a.byteOffset;
+}
+
+assertEquals(0, get(a));
+assertEquals(0, get(a));
+assertEquals(0, get(a));
+%OptimizeFunctionOnNextCall(get);
+assertEquals(0, get(a));