1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/regress-474529.js b/js/src/tests/non262/Array/regress-474529.js
new file mode 100644
index 0000000000..d377a9a939
--- /dev/null
+++ b/js/src/tests/non262/Array/regress-474529.js
@@ -0,0 +1,52 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 474529;
+var summary = 'Do not assert: _buf->_nextPage';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+
+  function main() {
+
+    function timeit(N, buildArrayString) {
+      return Function("N",
+                      "var d1 = +new Date;" +
+                      "while (N--) var x = " + buildArrayString +
+                      "; return +new Date - d1")(N);
+    }
+
+    function reportResults(size, N, literalMs, newArrayMs, arrayMs) {
+      print(Array.prototype.join.call(arguments, "\t"));
+    }
+
+    var repetitions = [ 9000, 7000, 4000, 2000, 2000, 2000, 800, 800, 800, 300, 100, 100 ]
+      for (var zeros = "0, ", i = 0; i < repetitions.length; ++i) {
+        var N = repetitions[i];
+        reportResults((1 << i) + 1, N,
+                      timeit(N, "[" + zeros + " 0 ]"),
+                      timeit(N, "new Array(" + zeros + " 0)"),
+                      timeit(N, "Array(" + zeros + " 0)"));
+        zeros += zeros;
+      }
+  }
+
+  gc();
+  print("Size\t\Rep.\t\Literal\tnew Arr\tArray()");
+  print("====\t=====\t=======\t=======\t=======");
+  main();
+
+  reportCompare(expect, actual, summary);
+}