// CHECK-NEXT: [[UNION:%.*]] = getelementptr inbounds {{.*}} [[THIS]], i32 0, i32 0
// CHECK-NEXT: [[STRUCT:%.*]] = bitcast {{.*}}* [[UNION]] to
// CHECK-NEXT: [[CALLBACK:%.*]] = getelementptr inbounds {{.*}} [[STRUCT]], i32 0, i32 0
- // CHECK: store {{.*}}* null, {{.*}}** [[CALLBACK]]
+ // CHECK: store
// CHECK-NEXT: [[UNION:%.*]] = getelementptr inbounds {{.*}} [[THIS]], i32 0, i32 0
// CHECK-NEXT: [[STRUCT:%.*]] = bitcast {{.*}}* [[UNION]] to
// CHECK-NEXT: [[CVALUE:%.*]] = getelementptr inbounds {{.*}} [[STRUCT]], i32 0, i32 1