1 /* Copyright 2021 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 // Legalize TensorFlow and TensorFlow Lite to TOSA 17 18 #include "mlir/Dialect/Func/IR/FuncOps.h" // from @llvm-project 19 #include "mlir/Dialect/Tosa/IR/TosaOps.h" // from @llvm-project 20 #include "mlir/IR/BuiltinOps.h" // from @llvm-project 21 #include "mlir/IR/MLIRContext.h" // from @llvm-project 22 #include "mlir/IR/PatternMatch.h" // from @llvm-project 23 #include "mlir/Support/LLVM.h" // from @llvm-project 24 #include "mlir/Transforms/DialectConversion.h" // from @llvm-project 25 #include "tensorflow/compiler/mlir/lite/ir/tfl_ops.h" 26 #include "tensorflow/compiler/mlir/tosa/transforms/legalize_common.h" 27 #include "tensorflow/compiler/mlir/tosa/transforms/legalize_utils.h" 28 #include "tensorflow/compiler/mlir/tosa/transforms/passes.h" 29 30 namespace mlir { 31 namespace tosa { 32 33 namespace { 34 35 // Performs lowering to TOSA dialect 36 class LegalizeTFTFL : public TosaLegalizeTFTFLPassBase<LegalizeTFTFL> { 37 public: LegalizeTFTFL()38 explicit LegalizeTFTFL() {} 39 void runOnOperation() override; 40 }; 41 runOnOperation()42void LegalizeTFTFL::runOnOperation() { 43 MLIRContext* ctx = &getContext(); 44 RewritePatternSet patterns(ctx); 45 populateLegalizeTFPatterns(ctx, patterns); 46 populateLegalizeTFLPatterns(ctx, patterns); 47 48 func::FuncOp func = getOperation(); 49 if (ApplyPatternsWithShapeResolution(func, std::move(patterns)).failed()) { 50 signalPassFailure(); 51 } 52 } 53 54 } // anonymous namespace 55 56 // Creates an instance of the TensorFlow Lite dialect LegalizeTFL pass. createLegalizeTFTFLPass()57std::unique_ptr<OperationPass<func::FuncOp>> createLegalizeTFTFLPass() { 58 return std::make_unique<LegalizeTFTFL>(); 59 } 60 61 } // namespace tosa 62 } // namespace mlir 63