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-rw-r--r--test/fixedbugs/issue44823.go26
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")
+ }
+}