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_JIT_DEADNESS_ANALYSIS_INTERNAL_H_ 17 #define TENSORFLOW_COMPILER_JIT_DEADNESS_ANALYSIS_INTERNAL_H_ 18 19 #include "absl/container/flat_hash_map.h" 20 #include "tensorflow/core/graph/tensor_id.h" 21 22 namespace tensorflow { 23 namespace deadness_analysis_internal { 24 25 // Returns a map describing the predicate each Tensor was mapped to. For 26 // testing purposes only. 27 using PredicateMapTy = absl::flat_hash_map<TensorId, string, TensorId::Hasher>; 28 Status ComputePredicates(const Graph& graph, PredicateMapTy* out_predicate_map); 29 30 // Returns a map describing the predicate each Tensor was mapped to. For 31 // testing purposes only. Makes deadness analysis visit the graph in the order 32 // specified in `reverse_post_order` which must be a valid RPO for the graph 33 // minus NextIteration->Merge edges. 34 Status ComputePredicates(const Graph& graph, 35 absl::Span<Node* const> reverse_post_order, 36 PredicateMapTy* out_predicate_map); 37 } // namespace deadness_analysis_internal 38 } // namespace tensorflow 39 40 #endif // TENSORFLOW_COMPILER_JIT_DEADNESS_ANALYSIS_INTERNAL_H_ 41