1/* Copyright 2022 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#ifndef TENSORFLOW_DTENSOR_CC_DTENSOR_GRAPH_TO_MLIR_PASS_H_
17#define TENSORFLOW_DTENSOR_CC_DTENSOR_GRAPH_TO_MLIR_PASS_H_
18
19#include "absl/container/flat_hash_set.h"
20#include "mlir/IR/MLIRContext.h" // from @llvm-project
21#include "mlir/Pass/PassManager.h" // from @llvm-project
22#include "tensorflow/core/common_runtime/device_set.h"
23#include "tensorflow/core/framework/function.h"
24#include "tensorflow/core/graph/graph.h"
25#include "tensorflow/core/platform/fingerprint.h"
26#include "tensorflow/dtensor/mlir/ir/tf_dtensor.h"
27
28namespace tensorflow {
29
30class DTensorMlirPassRunner {
31 public:
32 DTensorMlirPassRunner();
33 // Translates `graph` and replaces it with the resulting rewritten graph.
34 Status RunOnGraph(const DeviceSet& device_set, bool is_func,
35 FunctionLibraryDefinition* flib_def,
36 std::unique_ptr<Graph>* graph,
37 absl::flat_hash_set<Node*>& control_ret_nodes,
38 Fprint128 cache_key);
39
40 private:
41 // N.B. op_registration_ must be initialized before context/pass-manager to
42 // ensure DTensor operations are available during optimization passes.
43 bool op_registration_ = mlir::TF::RegisterDTensorTFOps();
44 mlir::MLIRContext context_;
45 mlir::PassManager pass_manager_;
46
47 bool logging_enabled_;
48};
49
50} // namespace tensorflow
51
52#endif // TENSORFLOW_DTENSOR_CC_DTENSOR_GRAPH_TO_MLIR_PASS_H_
53