| /* Copyright 2020 The TensorFlow Authors. All Rights Reserved. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==============================================================================*/ |
| |
| #include "mlir/IR/Module.h" // from @llvm-project |
| #include "mlir/Pass/PassManager.h" // from @llvm-project |
| #include "mlir/Transforms/Passes.h" // from @llvm-project |
| #include "tensorflow/compiler/mlir/tensorflow/ir/tf_device.h" |
| #include "tensorflow/compiler/mlir/tensorflow/transforms/passes.h" |
| |
| // This pass eliminate `_tpu_replicate` and `device` attribute on operations |
| // that are contained in a tf_device.cluster op. |
| |
| namespace mlir { |
| namespace TFTPU { |
| |
| namespace { |
| |
| constexpr char kTPUReplicateAttr[] = "_tpu_replicate"; |
| constexpr char kDeviceAttr[] = "device"; |
| |
| class TPUCleanupClusterAttributesPass |
| : public PassWrapper<TPUCleanupClusterAttributesPass, |
| OperationPass<ModuleOp>> { |
| public: |
| void runOnOperation() override { |
| getOperation().walk([](tf_device::ClusterOp cluster) { |
| cluster.walk([](Operation *op) { |
| if (isa<tf_device::ClusterOp>(op)) return; |
| for (StringRef attr : {kTPUReplicateAttr, kDeviceAttr}) |
| op->removeAttr(attr); |
| }); |
| }); |
| } |
| }; |
| |
| PassRegistration<TPUCleanupClusterAttributesPass> pass( |
| "tf-tpu-cleanup-cluster-attributes", |
| "Eliminate _tpu_replicate and other attributes from ops in a cluster"); |
| |
| } // namespace |
| |
| std::unique_ptr<OperationPass<ModuleOp>> |
| CreateTPUClusterCleanupAttributesPass() { |
| return std::make_unique<TPUCleanupClusterAttributesPass>(); |
| } |
| |
| } // namespace TFTPU |
| } // namespace mlir |