diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/parsingNumbers.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/parsingNumbers.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+function parsingNumbers() {
+    var s1 = "123";
+    var s1z = "123zzz";
+    var s2 = "123.456";
+    var s2z = "123.456zzz";
+
+    var e1 = 123;
+    var e2 = 123.456;
+
+    var r1, r1z, r2, r2z;
+
+    for (var i = 0; i < 10; i++) {
+        r1 = parseInt(s1);
+        r1z = parseInt(s1z);
+        r2 = parseFloat(s2);
+        r2z = parseFloat(s2z);
+    }
+
+    if (r1 == e1 && r1z == e1 && r2 == e2 && r2z == e2)
+        return "ok";
+    return "fail";
+}
+assertEq(parsingNumbers(), "ok");