go source for verification 2026-05-22

test/fixedbugs/issue42784.go

@@ -0,0 +1,26 @@
+// compile
+
+// Copyright 2020 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.
+
+// Ensure that late expansion correctly set OpLoad argument type interface{}
+
+package p
+
+type iface interface {
+	m()
+}
+
+type it interface{}
+
+type makeIface func() iface
+
+func f() {
+	var im makeIface
+	e := im().(it)
+	g(e)
+}
+
+//go:noinline
+func g(i it) {}