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 | |
16 | #ifndef TENSORFLOW_DTENSOR_MLIR_OP_UTILS_H_ |
17 | #define TENSORFLOW_DTENSOR_MLIR_OP_UTILS_H_ |
18 | |
19 | #include <string> |
20 | |
21 | #include "mlir/Dialect/Func/IR/FuncOps.h" // from @llvm-project |
22 | #include "mlir/IR/Operation.h" // from @llvm-project |
23 | #include "mlir/IR/Value.h" // from @llvm-project |
24 | #include "tensorflow/dtensor/mlir/ir/tf_dtensor.h" |
25 | |
26 | namespace tensorflow { |
27 | namespace dtensor { |
28 | |
29 | // Computes a deterministic hash of the given operation. |
30 | uint64_t OpHash(mlir::Operation* op); |
31 | |
32 | inline std::string OpName(mlir::Operation* op) { |
33 | auto ref = op->getName().getStringRef(); |
34 | return ref.str(); |
35 | } |
36 | |
37 | // Returns FuncOp if `op` is a callable. |
38 | absl::optional<mlir::func::FuncOp> MaybeFindFunction(mlir::Operation* op); |
39 | |
40 | // Removes tf.DTensorLayout op and forwards it's input to it's users. |
41 | // For example: |
42 | // %0 = tf.A() |
43 | // %1 = tf.DTensorLayout(%0) |
44 | // %2 = tf.B(%1) |
45 | // |
46 | // Will be converted to: |
47 | // %0 = tf.A() |
48 | // %2 = tf.B(%0) |
49 | void RemoveDTensorLayoutOp(mlir::TF::DTensorLayout layout); |
50 | |
51 | } // namespace dtensor |
52 | } // namespace tensorflow |
53 | |
54 | #endif // TENSORFLOW_DTENSOR_MLIR_OP_UTILS_H_ |
55 | |