diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testNegativeArrayLength.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testNegativeArrayLength.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+function f() {
+    try {
+	for ( var i = 7; i > -2; i-- )
+	    new Array(i).join('*');
+    } catch (e) {
+	return e instanceof RangeError;
+    }
+    return false;
+}
+assertEq(f(), true);