--- /dev/null
+// +build amd64 amd64p32 arm64 ppc64 ppc64le mips64 mips64le mips64p32 mips64p32le sparc64
+
+package pkg
+
+import "sync/atomic"
+
+type T struct {
+ A int64
+ B int32
+ C int64
+}
+
+func fn() {
+ var v T
+ atomic.AddInt64(&v.A, 0)
+ atomic.AddInt64(&v.C, 0)
+ atomic.LoadInt64(&v.C)
+}