Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/test/fixedbugs/issue19467.dir/mysync.go b/test/fixedbugs/issue19467.dir/mysync.go
new file mode 100644
index 0000000..d0e6fe0
--- /dev/null
+++ b/test/fixedbugs/issue19467.dir/mysync.go
@@ -0,0 +1,21 @@
+// Copyright 2017 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 mysync
+
+import "runtime"
+
+type WaitGroup struct {
+	Callers []uintptr
+}
+
+func (wg *WaitGroup) Add(x int) {
+	wg.Callers = make([]uintptr, 32)
+	n := runtime.Callers(1, wg.Callers)
+	wg.Callers = wg.Callers[:n]
+}
+
+func (wg *WaitGroup) Done() {
+	wg.Add(-1)
+}