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_TF2XLA_TYPE_UTIL_H_ 17 #define TENSORFLOW_COMPILER_TF2XLA_TYPE_UTIL_H_ 18 19 #include "tensorflow/compiler/xla/xla_data.pb.h" 20 #include "tensorflow/core/framework/types.pb.h" 21 #include "tensorflow/core/lib/core/status.h" 22 23 namespace tensorflow { 24 25 // Converts a Tensorflow DataType to an XLA PrimitiveType. 26 Status DataTypeToPrimitiveType(DataType data_type, xla::PrimitiveType* type); 27 28 // N.B.: there is intentionally no function to convert an XLA PrimitiveType to 29 // a TensorFlow DataType. The mapping from TF types to XLA types is not 30 // one-to-one: for example, both DT_INT8 and DT_QINT8 map to xla::S8. So the 31 // inverse would not be a well-defined function. If you find that you want the 32 // inverse mapping, then most likely you should be preserving the original 33 // TensorFlow type, rather than trying to convert an XLA type into a TensorFlow 34 // type. 35 36 } // namespace tensorflow 37 38 #endif // TENSORFLOW_COMPILER_TF2XLA_TYPE_UTIL_H_ 39