diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/jaeger/bug581871.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/jaeger/bug581871.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+function test(p) {
+  var alwaysFalse = p && !p;
+  var k = [];
+  var g;
+  if (!alwaysFalse) {
+    k[0] = g = alwaysFalse ? "failure" : "success";
+    return g;
+  }
+}
+assertEq(test("anything"), "success");