41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
/* Copyright 2017 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/compiler/tf2xla/xla_op_registry.h"
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#include "tensorflow/core/framework/kernel_def_builder.h"
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namespace tensorflow {
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namespace {
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class NoOp : public OpKernel {
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public:
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explicit NoOp(OpKernelConstruction* context) : OpKernel(context) {}
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void Compute(OpKernelContext* context) override {}
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bool IsExpensive() override { return false; }
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};
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} // namespace
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// XLA_* devices also register a "real" NoOp operator so we suppress the
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// dummy operator using CompilationOnly().
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REGISTER_XLA_OP(Name("NoOp").CompilationOnly(), NoOp);
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// We register ControlTrigger as a no-op. This is correct since nodes seen
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// by the XLA compiler are never dead.
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REGISTER_XLA_OP(Name("ControlTrigger").CompilationOnly(), NoOp);
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} // namespace tensorflow
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