1/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7    http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#include "tensorflow/core/kernels/no_op.h"
17#include "tensorflow/compiler/tf2xla/xla_op_registry.h"
18#include "tensorflow/core/framework/kernel_def_builder.h"
19
20namespace tensorflow {
21
22// XLA_* devices also register a "real" NoOp operator so we suppress the
23// dummy operator using CompilationOnly().
24REGISTER_XLA_OP(Name("NoOp").CompilationOnly(), NoOp);
25
26// We register ControlTrigger as a no-op. This is correct since nodes seen
27// by the XLA compiler are never dead. This may need rethinking when we add
28// support for conditionals to XLA.
29REGISTER_XLA_OP(Name("ControlTrigger"), NoOp);
30
31}  // namespace tensorflow
32