| /* Copyright 2022 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 <utility> |
| |
| #include "llvm/ADT/StringRef.h" |
| #include "mlir/IR/PatternMatch.h" // from @llvm-project |
| #include "mlir/Pass/Pass.h" // from @llvm-project |
| #include "mlir/Support/LLVM.h" // from @llvm-project |
| #include "mlir/Transforms/GreedyPatternRewriteDriver.h" // from @llvm-project |
| #include "tensorflow/compiler/mlir/tensorflow/ir/tf_dialect.h" |
| #include "tensorflow/compiler/mlir/tensorflow/ir/tf_ops.h" |
| |
| namespace mlir { |
| namespace quant { |
| namespace { |
| |
| class PrepareLiftingPass |
| : public PassWrapper<PrepareLiftingPass, OperationPass<func::FuncOp>> { |
| public: |
| StringRef getArgument() const final { |
| // This is the argument used to refer to the pass in |
| // the textual format (on the commandline for example). |
| return "quant-prepare-lifting"; |
| } |
| |
| StringRef getDescription() const final { |
| // This is a brief description of the pass. |
| return "Apply graph optimizations such as fusing and constant folding to " |
| "prepare lifting."; |
| } |
| |
| void getDependentDialects(DialectRegistry ®istry) const override { |
| registry.insert<TF::TensorFlowDialect>(); |
| } |
| |
| void runOnOperation() override; |
| }; |
| |
| #include "tensorflow/compiler/mlir/quantization/tensorflow/passes/prepare_lifting.inc" |
| |
| void PrepareLiftingPass::runOnOperation() { |
| MLIRContext *ctx = &getContext(); |
| auto func = getOperation(); |
| |
| // Decompose batch normalization ops. |
| RewritePatternSet patterns(ctx); |
| populateWithGenerated(patterns); |
| (void)applyPatternsAndFoldGreedily(func, std::move(patterns)); |
| } |
| |
| } // namespace |
| |
| std::unique_ptr<OperationPass<func::FuncOp>> CreatePrepareLiftingPass() { |
| return std::make_unique<PrepareLiftingPass>(); |
| } |
| |
| static PassRegistration<PrepareLiftingPass> pass; |
| |
| } // namespace quant |
| } // namespace mlir |