diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testHeavy.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testHeavy.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+function heavyFn1(i) { 
+    if (i == 3) {
+	var x = 3;
+        return [0, i].map(function (i) i + x);
+    }
+    return [];
+}
+
+function testHeavy() {
+    for (var i = 0; i <= 3; i++)
+        heavyFn1(i);
+}
+
+testHeavy();