Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 45 insertions, 0 deletions

diff --git a/test/fixedbugs/issue8036.go b/test/fixedbugs/issue8036.go
new file mode 100644
index 0000000..82ba7f7
--- /dev/null
+++ b/test/fixedbugs/issue8036.go
@@ -0,0 +1,45 @@
+// run
+
+// 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.
+
+// Issue 8036. Stores necessary for stack scan being eliminated as redundant by optimizer.
+
+package main
+
+import "runtime"
+
+type T struct {
+	X *int
+	Y *int
+	Z *int
+}
+
+type TI [3]uintptr
+
+//go:noinline
+func G() (t TI) {
+	t[0] = 1
+	t[1] = 2
+	t[2] = 3
+	return
+}
+
+//go:noinline
+func F() (t T) {
+	t.X = newint()
+	t.Y = t.X
+	t.Z = t.Y
+	return
+}
+
+func newint() *int {
+	runtime.GC()
+	return nil
+}
+
+func main() {
+	G() // leave non-pointers where F's return values go
+	F()
+}