1 files changed, 29 insertions, 0 deletions
diff --git a/test/align.go b/test/align.go
new file mode 100644
index 0000000..61d07c4
--- /dev/null
+++ b/test/align.go
@@ -0,0 +1,29 @@
+// run
+
+// Copyright 2018 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 main
+
+// On 32-bit archs, one of the f fields of a [2]T
+// will be unaligned (address of 4 mod 8).
+// Make sure we can access the f fields successfully,
+// particularly for load-add combo instructions
+// introduced by CL 102036.
+type T struct {
+	pad uint32
+	f float64
+}
+
+//go:noinline
+func f(t, u *T) float64 {
+	return 3.0 + t.f + u.f
+}
+
+func main() {
+	t := [2]T{{0, 1.0}, {0, 2.0}}
+	sink = f(&t[0], &t[1])
+}
+
+var sink float64