diff --git a/test/fixedbugs/bug448.dir/pkg1.go b/test/fixedbugs/bug448.dir/pkg1.go
new file mode 100644
index 0000000..032e5d9
--- /dev/null
+++ b/test/fixedbugs/bug448.dir/pkg1.go
@@ -0,0 +1,11 @@
+// Copyright 2012 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 pkg1
+
+var x = make(chan interface{})
+
+func Do() int {
+	return (<-x).(int)
+}
diff --git a/test/fixedbugs/bug448.dir/pkg2.go b/test/fixedbugs/bug448.dir/pkg2.go
new file mode 100644
index 0000000..5c78c7d
--- /dev/null
+++ b/test/fixedbugs/bug448.dir/pkg2.go
@@ -0,0 +1,14 @@
+// Copyright 2012 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.
+
+// Issue 3843: inlining bug due to wrong receive operator precedence.
+
+package pkg2
+
+import "./pkg1"
+
+func F() {
+	pkg1.Do()
+}
+
diff --git a/test/fixedbugs/bug448.go b/test/fixedbugs/bug448.go
new file mode 100644
index 0000000..242f599
--- /dev/null
+++ b/test/fixedbugs/bug448.go
@@ -0,0 +1,7 @@
+// compiledir
+
+// Copyright 2012 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