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diff --git a/deps/v8/test/mjsunit/regress/regress-244.js b/deps/v8/test/mjsunit/regress/regress-244.js
new file mode 100644
index 0000000000..ffddcf8355
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+++ b/deps/v8/test/mjsunit/regress/regress-244.js
@@ -0,0 +1,67 @@
+// Copyright 2009 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.
+
+var kLegalPairs = [
+  [0x00, '%00'],
+  [0x01, '%01'],
+  [0x7f, '%7F'],
+  [0x80, '%C2%80'],
+  [0x81, '%C2%81'],
+  [0x7ff, '%DF%BF'],
+  [0x800, '%E0%A0%80'],
+  [0x801, '%E0%A0%81'],
+  [0xd7ff, '%ED%9F%BF'],
+  [0xffff, '%EF%BF%BF']
+];
+
+var kIllegalEncoded = [
+  '%80', '%BF', '%80%BF', '%80%BF%80', '%C0%22', '%DF',
+  '%EF%BF', '%F7BFBF', '%FE', '%FF', '%FE%FE%FF%FF',
+  '%C0%AF', '%E0%9F%BF', '%F0%8F%BF%BF', '%C0%80',
+  '%E0%80%80'
+];
+
+function run() {
+  for (var i = 0; i < kLegalPairs.length; i++) {
+    var decoded = String.fromCharCode(kLegalPairs[i][0]);
+    var encoded = kLegalPairs[i][1];
+    assertEquals(decodeURI(encoded), decoded);
+    assertEquals(encodeURI(decoded), encoded);
+  }
+  for (var i = 0; i < kIllegalEncoded.length; i++) {
+    var value = kIllegalEncoded[i];
+    var threw = false;
+    try {
+      decodeURI(value);
+      fail(value);
+    } catch (e) {
+      assertInstanceof(e, URIError);
+    }
+  }
+}
+
+run();