R=rsc
https://golang.org/cl/154172
--- /dev/null
+// $G $D/$F.go || echo BUG: bug218
+
+// Copyright 2009 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.
+
+// Crashes 6g, 8g
+// http://code.google.com/p/go/issues/detail?id=238
+
+package main
+
+func main() {
+ bar := make(chan bool);
+ select {
+ case _ = <-bar:
+ return
+ }
+}
+
+/*
+6g bug218.go
+<epoch>: fatal error: dowidth: unknown type: blank
+*/
panic PC=xxx
== bugs/
+
+=========== bugs/bug218.go
+<epoch>: fatal error: dowidth: unknown type: blank
+BUG: bug218