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 #ifndef TENSORFLOW_COMPILER_MLIR_LITE_EXPERIMENTAL_TAC_COMMON_COST_H_
17 #define TENSORFLOW_COMPILER_MLIR_LITE_EXPERIMENTAL_TAC_COMMON_COST_H_
18
19 #include <string>
20
21 #include "mlir/IR/Builders.h" // from @llvm-project
22 #include "mlir/IR/Operation.h" // from @llvm-project
23
24 namespace mlir {
25 namespace TFL {
26 namespace tac {
27
28 // Cost attribute string on the TFL dialect.
29 constexpr char kCost[] = "tac.cost";
30
UpdateCost(Operation * op,float cost,OpBuilder * builder)31 inline void UpdateCost(Operation* op, float cost, OpBuilder* builder) {
32 op->setAttr(kCost, builder->getF32FloatAttr(cost));
33 }
34
35 // Get the cost annotated with kCost.
GetCostOnOp(Operation * op,float * cost)36 inline bool GetCostOnOp(Operation* op, float* cost) {
37 auto cost_type = op->getAttrOfType<FloatAttr>(kCost);
38 if (cost_type == nullptr) {
39 return false;
40 }
41
42 *cost = cost_type.getValueAsDouble();
43 return true;
44 }
45
46 } // namespace tac
47 } // namespace TFL
48 } // namespace mlir
49
50 #endif // TENSORFLOW_COMPILER_MLIR_LITE_EXPERIMENTAL_TAC_COMMON_COST_H_
51