1 /* Copyright 2022 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 #ifndef TENSORFLOW_COMPILER_MLIR_QUANTIZATION_TENSORFLOW_UTILS_OPS_LIFTING_UTILS_H_ 16 #define TENSORFLOW_COMPILER_MLIR_QUANTIZATION_TENSORFLOW_UTILS_OPS_LIFTING_UTILS_H_ 17 18 #include "absl/strings/string_view.h" 19 #include "llvm/ADT/SmallVector.h" 20 #include "llvm/ADT/StringRef.h" 21 #include "mlir/Dialect/Func/IR/FuncOps.h" // from @llvm-project 22 #include "mlir/IR/BuiltinOps.h" // from @llvm-project 23 #include "tensorflow/compiler/mlir/tensorflow/ir/tf_dialect.h" 24 25 // This header file defines common utils used by TF-Quant transformation 26 // passes to lift op compositions to a function. 27 namespace mlir { 28 namespace quant { 29 30 inline constexpr absl::string_view kAttrMapAttribute = "attr_map"; 31 // This attribute will be set for functions created by this pass. 32 inline constexpr absl::string_view kFusedFunctionAttr = 33 "tf_quant.composite_function"; 34 // The keyword to detect if this is a `NullAttribute`. 35 inline constexpr absl::string_view kNullAttributeValue = "N/A"; 36 37 // Checks if the op is inside a lifted function. 38 bool IsInLiftedFunc(Operation *op); 39 40 // Creates a function to wrap the section between arguments and results. 41 llvm::SmallVector<Value, 4> LiftAsFunctionCall( 42 OpBuilder builder, Location location, StringRef func_name, 43 const llvm::SmallVector<Value> &arguments, 44 const llvm::SmallVector<Value> &results, 45 const llvm::SmallVector<NamedAttribute> &attributes); 46 47 // Same as above but with empty attributes. 48 llvm::SmallVector<Value, 4> LiftAsFunctionCall( 49 OpBuilder builder, Location location, StringRef func_name, 50 const llvm::SmallVector<Value> &arguments, 51 const llvm::SmallVector<Value> &results); 52 53 } // namespace quant 54 } // namespace mlir 55 #endif // TENSORFLOW_COMPILER_MLIR_QUANTIZATION_TENSORFLOW_UTILS_OPS_LIFTING_UTILS_H_ 56