1 files changed, 21 insertions, 0 deletions
diff --git a/test/fixedbugs/issue15961.go b/test/fixedbugs/issue15961.go
new file mode 100644
index 0000000..db3d662
--- /dev/null
+++ b/test/fixedbugs/issue15961.go
@@ -0,0 +1,21 @@
+// compile
+
+// Copyright 2016 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 y
+
+type symSet []int
+
+//go:noinline
+func (s symSet) len() (r int) {
+	return 0
+}
+
+func f(m map[int]symSet) {
+	var symSet []int
+	for _, x := range symSet {
+		m[x] = nil
+	}
+}