1 /* Copyright 2018 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_CONDITIONAL_TO_SELECT_H_ 17 #define TENSORFLOW_COMPILER_XLA_SERVICE_CONDITIONAL_TO_SELECT_H_ 18 19 #include "tensorflow/compiler/xla/service/hlo_module.h" 20 #include "tensorflow/compiler/xla/service/hlo_pass_interface.h" 21 22 namespace xla { 23 24 // A pass which transforms conditionals to selects in places where conditionals 25 // are legal, but not currently supported by the backends (e.g. inside kMap) 26 class ConditionalToSelect : public HloModulePass { 27 public: 28 ~ConditionalToSelect() override = default; name()29 absl::string_view name() const override { return "conditional-to-select"; } 30 31 // Run conditional to select on the given computation. Returns whether the 32 // computation was changed. 33 using HloPassInterface::Run; 34 StatusOr<bool> Run( 35 HloModule* module, 36 const absl::flat_hash_set<absl::string_view>& execution_threads) override; 37 }; 38 39 } // namespace xla 40 41 #endif // TENSORFLOW_COMPILER_XLA_SERVICE_CONDITIONAL_TO_SELECT_H_ 42