Version 4.4.63.26

test/mjsunit/regress/regress-crbug-514268.js

+// 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
+
+function bar(a) {
+  a.pop();
+}
+function foo(a) {
+  assertEquals(2, a.length);
+  var d;
+  for (d in a) {
+    bar(a);
+  }
+  // If this fails, bar was not called exactly once.
+  assertEquals(1, a.length);
+}
+
+foo([1,2]);
+foo([2,3]);
+%OptimizeFunctionOnNextCall(foo);
+foo([1,2]);