diff --git a/tests/81_frontend.py b/tests/81_frontend.py
new file mode 100644
index 00000000..b0c418c8
--- /dev/null
+++ b/tests/81_frontend.py
@@ -0,0 +1,17 @@
+from dis import dis, _s
+
+def f(a):
+    for i in range(100000):
+        a.append(i)
+    a = 0.5
+    a = True
+    a = '123'
+    a = 123, 456
+    a = [1, 2, 3]
+    return a, a, a
+
+def g(a):
+    return f([1,2,3] + a)
+
+x = _s(g)
+assert type(x) is str
\ No newline at end of file