diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/pic/grandproto.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/pic/grandproto.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+function A()
+{
+    this.a = 77;
+    this.b = 88;
+}
+
+function B()
+{
+}
+
+B.prototype = new A;
+
+function C()
+{
+}
+
+C.prototype = new B;
+
+function f() {
+    var o = new C;
+    var z;
+    for (var i = 0; i < 5; ++i) {
+	z = o.a;
+	assertEq(z, 77);
+    }
+}
+
+f();
\ No newline at end of file