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_XLA_TRANSFORMS_XLA_PASSES_H_ 17 #define TENSORFLOW_COMPILER_MLIR_XLA_TRANSFORMS_XLA_PASSES_H_ 18 19 #include <memory> 20 21 #include "mlir/IR/BuiltinOps.h" // from @llvm-project 22 #include "mlir/Pass/Pass.h" // from @llvm-project 23 #include "mlir/Pass/PassRegistry.h" // from @llvm-project 24 25 namespace mlir { 26 27 namespace func { 28 class FuncOp; 29 } // namespace func 30 template <typename T> 31 class OperationPass; 32 33 namespace mhlo { 34 35 // Prepare module for export to XLA HLO protos/instruction. 36 std::unique_ptr<OperationPass<func::FuncOp>> CreatePrepareForExport(); 37 38 // Wrap function with XLA:CPU's C interface. 39 std::unique_ptr<OperationPass<ModuleOp>> CreateOutlineWithXLAFrameworkPass(); 40 41 // Convert XLAFramework operations to LLVM operations. 42 std::unique_ptr<OperationPass<ModuleOp>> CreateLegalizeXLAFrameworkToLLVMPass(); 43 44 // Patterns to lower all XLAFramework operations and types to LLVM versions. 45 void PopulateLegalizeXLAFrameworkToLLVMPatterns(llvm::StringRef device_type, 46 RewritePatternSet& patterns, 47 MLIRContext* ctx, 48 bool prefer_tf2xla = false); 49 50 #define GEN_PASS_REGISTRATION 51 #include "tensorflow/compiler/mlir/xla/transforms/xla_passes.h.inc" 52 53 } // namespace mhlo 54 } // namespace mlir 55 56 #endif // TENSORFLOW_COMPILER_MLIR_XLA_TRANSFORMS_XLA_PASSES_H_ 57