diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testMoreArgcThanNargs.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testMoreArgcThanNargs.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+function doTestMoreArgcThanNargs()
+{
+    var x = 0;
+    for (var i = 0; i < 10; i++)
+    {
+        x = x + arguments[3];
+    }
+    return x;
+}
+function testMoreArgcThanNargs()
+{
+    return doTestMoreArgcThanNargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
+}
+assertEq(testMoreArgcThanNargs(), 4*10);