diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/inline/undefinedLocal.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/inline/undefinedLocal.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+
+function bar(n) {
+  var a;
+  if (n < 50)
+    a = n;
+  return a;
+}
+
+function foo() {
+  for (var i = 0; i < 100; i++) {
+    var q = bar(i);
+    if (i < 50)
+      assertEq(q, i);
+    else
+      assertEq(q, undefined);
+  }
+}
+
+foo();