diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/auto-regress/bug580694.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/auto-regress/bug580694.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// Binary: cache/js-dbg-32-7c6f62fcbd91-linux
+// Flags: -m
+//
+function f3() {
+    try {
+        v = f()
+    } catch (r) {}
+}
+function f1(a, t) {
+    f2(f, a)
+}
+function f2() {
+    u = uneval()
+}
+f = (function () {
+    Proxy((function () {})(gc()), [])
+})
+a = ""
+f1()
+f3(f, a)