1 files changed, 38 insertions, 0 deletions
diff --git a/test/fixedbugs/issue15992.go b/test/fixedbugs/issue15992.go
new file mode 100644
index 0000000..cda5527
--- /dev/null
+++ b/test/fixedbugs/issue15992.go
@@ -0,0 +1,38 @@
+// run
+
+// Copyright 2018 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 main
+
+import (
+	"fmt"
+)
+
+func f(a []byte) ([]byte, []byte) {
+	return a, []byte("abc")
+}
+
+func g(a []byte) ([]byte, string) {
+	return a, "abc"
+}
+
+func h(m map[int]int) (map[int]int, int) {
+	return m, 0
+}
+
+func main() {
+	a := []byte{1, 2, 3}
+	n := copy(f(a))
+	fmt.Println(n, a)
+
+	b := []byte{1, 2, 3}
+	n = copy(g(b))
+	fmt.Println(n, b)
+
+	m := map[int]int{0: 0}
+	fmt.Println(len(m))
+	delete(h(m))
+	fmt.Println(len(m))
+}