1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 16 #ifndef TENSORFLOW_COMPILER_XLA_SERVICE_TUPLE_SIMPLIFIER_H_ 17 #define TENSORFLOW_COMPILER_XLA_SERVICE_TUPLE_SIMPLIFIER_H_ 18 19 #include <utility> 20 21 #include "tensorflow/compiler/xla/service/hlo_module.h" 22 #include "tensorflow/compiler/xla/service/hlo_pass_interface.h" 23 24 namespace xla { 25 26 // A pass which simplifies patterns of Tuple and GetTupleElement instructions in 27 // the module. 28 class TupleSimplifier : public HloPassInterface { 29 public: 30 TupleSimplifier() {} 31 ~TupleSimplifier() override {} 32 tensorflow::StringPiece name() const override { return "tuple-simplifier"; } 33 34 // Run tuple simplification on the given computation. Returns whether the 35 // computation was changed. 36 StatusOr<bool> Run(HloModule* module) override; 37 }; 38 39 } // namespace xla 40 41 #endif // TENSORFLOW_COMPILER_XLA_SERVICE_TUPLE_SIMPLIFIER_H_ 42
