diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug558814.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug558814.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+function f()
+{
+    var a = [];
+    a.length = 10;
+    for (var i = 0; i < 100; i++) {
+        var y = a[a.length];
+    }
+}
+f();
+// No assertEq() call, the test is just that it shouldn't assert or crash.