diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/pic/set2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/pic/set2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+function f(k) {
+    var o1 = { a: 5 };
+    var o2 = { b : 7, a : 9 };
+
+    for (var i = 0; i < k; ++i) {
+	var o = i % 2 ? o2 : o1;
+	o.a = i;
+    }
+
+    return o1.a + ',' + o2.a;
+}
+
+assertEq(f(5), '4,3')
+assertEq(f(6), '4,5')