diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/parseIntTests.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/parseIntTests.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+function parseIntHelper(n) {
+    var a;
+    for (var i = 0; i < 5; i++)
+      a = parseInt(n);
+    return a;
+}
+function doParseIntTests() {
+    var inputs = [0, -0, .1, -.1, .7, -.7, 1.3, -1.3];
+    var outputs = new Array(8);
+    //avoid jit, unrolled
+    outputs[0] = outputs[1] = outputs[2] = outputs[4] = 0;
+    outputs[3] = outputs[5] = -0;
+    outputs[6] = 1;
+    outputs[7] = -1;
+    for (var i = 0; i < 8; i++) {
+        var testfn = new Function('return parseIntHelper(' + uneval(inputs[i]) + ');');
+        assertEq(testfn(), outputs[i]);
+    }
+}
+doParseIntTests();
+
+assertEq(parseInt("08"), 8);
+assertEq(parseInt("09"), 9);