diff --git a/test/fixedbugs/issue51291.dir/a.go b/test/fixedbugs/issue51291.dir/a.go
new file mode 100644
index 0000000000..21e2cd6adf
--- /dev/null
+++ b/test/fixedbugs/issue51291.dir/a.go
@@ -0,0 +1,9 @@
+// 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.
+
+package a
+
+type TypeA string
+
+const StrA TypeA = "s"
diff --git a/test/fixedbugs/issue51291.dir/b.go b/test/fixedbugs/issue51291.dir/b.go
new file mode 100644
index 0000000000..26b2c7872e
--- /dev/null
+++ b/test/fixedbugs/issue51291.dir/b.go
@@ -0,0 +1,11 @@
+// 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.
+
+package b
+
+import "./a"
+
+type TypeB string
+
+const StrB TypeB = TypeB(a.StrA)
diff --git a/test/fixedbugs/issue51291.go b/test/fixedbugs/issue51291.go
new file mode 100644
index 0000000000..9e7d4be891
--- /dev/null
+++ b/test/fixedbugs/issue51291.go
@@ -0,0 +1,9 @@
+// compiledir
+
+// 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.
+
+package ignored
+
+// gofrontend crashed generating export data.