1 files changed, 23 insertions, 0 deletions
diff --git a/test/typeparam/issue47740b.go b/test/typeparam/issue47740b.go
new file mode 100644
index 0000000000..2a91d35eb4
--- /dev/null
+++ b/test/typeparam/issue47740b.go
@@ -0,0 +1,23 @@
+// 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
+
+import "reflect"
+
+type S[T any] struct {
+	a interface{}
+}
+
+func (e S[T]) M() {
+	v := reflect.ValueOf(e.a)
+	_, _ = v.Interface().(int)
+}
+
+func main() {
+	e := S[int]{0}
+	e.M()
+}