Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 28 insertions, 0 deletions

diff --git a/test/fixedbugs/bug450.go b/test/fixedbugs/bug450.go
new file mode 100644
index 0000000..f64063a
--- /dev/null
+++ b/test/fixedbugs/bug450.go
@@ -0,0 +1,28 @@
+// run
+
+// Copyright 2012 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.
+
+// Issue 3899: 8g incorrectly thinks a variable is
+// "set and not used" and elides an assignment, causing
+// variables to end up with wrong data.
+//
+// The reason is a miscalculation of variable width.
+
+package main
+
+func bar(f func()) {
+	f()
+}
+
+func foo() {
+	f := func() {}
+	if f == nil {
+	}
+	bar(f)
+}
+
+func main() {
+	foo()
+}