1 files changed, 34 insertions, 0 deletions
diff --git a/test/fixedbugs/issue51733.go b/test/fixedbugs/issue51733.go
new file mode 100644
index 0000000..933c3e8
--- /dev/null
+++ b/test/fixedbugs/issue51733.go
@@ -0,0 +1,34 @@
+// run
+
+// Copyright 2022 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.
+
+//go:build cgo
+
+package main
+
+import (
+	"log"
+	"runtime/cgo"
+	"unsafe"
+)
+
+type S struct{ _ cgo.Incomplete }
+
+func main() {
+	p := (*S)(unsafe.Pointer(uintptr(0x8000)))
+	var v any = p
+	p2 := v.(*S)
+	if p != p2 {
+		log.Fatalf("%p != %p", unsafe.Pointer(p), unsafe.Pointer(p2))
+	}
+	p2 = typeAssert[*S](v)
+	if p != p2 {
+		log.Fatalf("%p != %p from typeAssert", unsafe.Pointer(p), unsafe.Pointer(p2))
+	}
+}
+
+func typeAssert[T any](v any) T {
+	return v.(T)
+}