diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug529147.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug529147.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,22 @@
+var magicNumbers = [1, -1, 0, 0];
+var magicIndex = 0;
+
+var sum = 0;
+
+function foo(n) {
+    for (var i = 0; i < n; ++i) {
+        sum += 10;
+        bar();
+    }
+}
+
+function bar() {
+    var q = magicNumbers[magicIndex++];
+    if (q != -1) {
+        sum += 1;
+        foo(q);
+    }
+}
+
+foo(3);
+assertEq(sum, 43);