1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-427798.js b/js/src/tests/non262/regress/regress-427798.js
new file mode 100644
index 0000000000..db889f3522
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-427798.js
@@ -0,0 +1,55 @@
+/* -*- 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 = 427798;
+var summary = 'js_PutBlockObject is slow';
+var actual = 'Good result';
+var expect = 'Good result';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+  printBugNumber(BUGNUMBER);
+  printStatus (summary);
+ 
+  function f(N)
+  {
+    for (var i = 0; i != N; ++i) {
+      var f, g;
+      {
+        let j = i + 1;
+        f = function() { j += 2; return j; }
+        if (f() != i + 3)
+          throw "Bad result";
+      }
+      if (f() != i + 5)
+        throw "Bad result";
+      {
+        let j = i + 1, k = i + 2;
+        f = function() { j += 2; k++; return j + k; }
+        if (f() != i + i + 6)
+          throw "Bad result";
+      }
+      if (f() != i + i + 9)
+        throw "Bad result";
+    }
+  }
+
+  try
+  {
+    f(20*1000);
+  }
+  catch(ex)
+  {
+    actual = ex + '';
+  }
+
+  reportCompare(expect, actual, summary);
+}