diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/pic/length_mix.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/pic/length_mix.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+// length, various types
+
+var expected = "4,5,44,5,44,4,44,4,5,4,5,44,5,44,4,44,4,5,";
+var actual = '';
+
+function f() {
+  var a = [ "abcd", [1, 2, 3, 4, 5], { length: 44 } ];
+
+  for (var i = 0; i < 6; ++i) {
+    // Use 3 PICs so we start out with each type in one PIC.
+    var i1 = i % 3;
+    var i2 = (i+1) % 3;
+    var i3 = (i+2) % 3;
+    actual += a[i1].length + ',';
+    actual += a[i2].length + ',';
+    actual += a[i3].length + ',';
+  }
+}
+
+f();
+
+assertEq(actual, expected);