1 files changed, 40 insertions, 0 deletions
diff --git a/test/typeparam/mdempsky/14.go b/test/typeparam/mdempsky/14.go
new file mode 100644
index 0000000000..ba685bc35c
--- /dev/null
+++ b/test/typeparam/mdempsky/14.go
@@ -0,0 +1,40 @@
+// run -gcflags=-G=3
+
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+// Zero returns the zero value of T
+func Zero[T any]() (_ T) {
+	return
+}
+
+type AnyInt[X any] int
+
+func (AnyInt[X]) M() {
+	var have interface{} = Zero[X]()
+	var want interface{} = Zero[MyInt]()
+
+	if have != want {
+		println("FAIL")
+	}
+}
+
+type I interface{ M() }
+
+type MyInt int
+type U = AnyInt[MyInt]
+
+var x = U(0)
+var i I = x
+
+func main() {
+	x.M()
+	U.M(x)
+	(*U).M(&x)
+
+	i.M()
+	I.M(x)
+}