Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 26 insertions, 0 deletions

diff --git a/test/fixedbugs/issue44823.go b/test/fixedbugs/issue44823.go
new file mode 100644
index 0000000..85811df
--- /dev/null
+++ b/test/fixedbugs/issue44823.go
@@ -0,0 +1,26 @@
+// run
+
+// Copyright 2021 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 44823: miscompilation with store combining.
+
+package main
+
+import "encoding/binary"
+
+//go:noinline
+func Id(a [8]byte) (x [8]byte) {
+	binary.LittleEndian.PutUint64(x[:], binary.LittleEndian.Uint64(a[:]))
+	return
+}
+
+var a = [8]byte{1, 2, 3, 4, 5, 6, 7, 8}
+
+func main() {
+	x := Id(a)
+	if x != a {
+		panic("FAIL")
+	}
+}