diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/setArgumentsLength2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/setArgumentsLength2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+// don't crash
+
+var q;
+
+function f() {
+  while (arguments.length > 0) {
+    q = arguments[arguments.length-1];
+    arguments.length--;
+  }
+}
+
+f(1, 2, 3, 4, 5);