1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testNullIncrement.js b/js/src/jit-test/tests/basic/testNullIncrement.js
new file mode 100644
index 000000000..b7ffd03b4
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testNullIncrement.js
@@ -0,0 +1,14 @@
+function f() {
+    var n;
+    var k;
+    for (var i = 0; i < 18; ++i) {
+	n = null;
+	k = n++;
+	if (k) { }
+    }
+    return [k, n];
+}
+
+var [a, b] = f();
+assertEq(a, 0);
+assertEq(b, 1);