1 /* Copyright 2019 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_MLIR_TENSORFLOW_TRANSFORMS_LOWER_TF_H_ 17 #define TENSORFLOW_COMPILER_MLIR_TENSORFLOW_TRANSFORMS_LOWER_TF_H_ 18 19 #include "mlir/IR/MLIRContext.h" // from @llvm-project 20 #include "mlir/IR/PatternMatch.h" // from @llvm-project 21 22 namespace mlir { 23 namespace TF { 24 25 // Populates TensorFlow lowering patterns to lower some of the TensorFlow 26 // operations that can be represented using other TensorFlow operations. 27 void PopulateLoweringTFPatterns(MLIRContext *context, 28 OwningRewritePatternList *patterns); 29 30 // Populates TensorFlow lowering patterns to lower some of the TensorFlow 31 // operations that can be represented by means of other TensorFlow operations. 32 // This pattern collection preserves those TensorFlow operations that will later 33 // be lowered to equivalent operations in CHLO or MHLO. This allows for 34 // HLO-specific lowerings. 35 void PopulateTFLoweringBeforeHLOPatterns(MLIRContext *context, 36 OwningRewritePatternList *patterns); 37 38 } // namespace TF 39 } // namespace mlir 40 41 #endif // TENSORFLOW_COMPILER_MLIR_TENSORFLOW_TRANSFORMS_LOWER_TF_H_ 42