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-rw-r--r--test/fixedbugs/issue20335.go19
1 files changed, 19 insertions, 0 deletions
diff --git a/test/fixedbugs/issue20335.go b/test/fixedbugs/issue20335.go
new file mode 100644
index 0000000000..185c2f06ea
--- /dev/null
+++ b/test/fixedbugs/issue20335.go
@@ -0,0 +1,19 @@
+// compile
+
+// Copyright 2017 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 20335: don't reorder loads with stores.
+// This test should fail on the ssacheck builder
+// without the fix in the CL that added this file.
+// TODO: check the generated assembly?
+
+package a
+
+import "sync/atomic"
+
+func f(p, q *int32) bool {
+ x := *q
+ return atomic.AddInt32(p, 1) == x
+}