1 files changed, 23 insertions, 0 deletions
diff --git a/test/fixedbugs/issue7998.go b/test/fixedbugs/issue7998.go
new file mode 100644
index 000000000..245035ede
--- /dev/null
+++ b/test/fixedbugs/issue7998.go
@@ -0,0 +1,23 @@
+// compile
+
+// Copyright 2014 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.
+
+// /tmp/x.go:5: cannot use _ as value
+
+package p
+
+func f(ch chan int) bool {
+	select {
+	case _, ok := <-ch:
+		return ok
+	}
+	_, ok := <-ch
+	_ = ok
+	select {
+	case _, _ = <-ch:
+		return true
+	}
+	return false
+}