1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/tests/ecma_5/RegExp/regress-613820-1.js b/js/src/tests/ecma_5/RegExp/regress-613820-1.js
new file mode 100644
index 000000000..e5e755b24
--- /dev/null
+++ b/js/src/tests/ecma_5/RegExp/regress-613820-1.js
@@ -0,0 +1,9 @@
+/* Back reference is actually a forwards reference. */
+var re = /(\2(a)){2}/;
+var str = 'aaa';
+var actual = re.exec(str);
+var expected = makeExpectedMatch(['aa', 'a', 'a'], 0, str);
+checkRegExpMatch(actual, expected);
+
+if (typeof reportCompare === 'function')
+    reportCompare(true, true);