| 1 | //===- Bufferize.cpp - Bufferization for Arith ops ---------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "mlir/Dialect/Arith/Transforms/Passes.h" |
| 10 | |
| 11 | #include "mlir/Dialect/Arith/IR/Arith.h" |
| 12 | #include "mlir/Dialect/Arith/Transforms/BufferizableOpInterfaceImpl.h" |
| 13 | #include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h" |
| 14 | #include "mlir/Dialect/Bufferization/IR/Bufferization.h" |
| 15 | #include "mlir/Dialect/Bufferization/Transforms/Bufferize.h" |
| 16 | #include "mlir/Dialect/MemRef/IR/MemRef.h" |
| 17 | |
| 18 | namespace mlir { |
| 19 | namespace arith { |
| 20 | #define GEN_PASS_DEF_ARITHBUFFERIZEPASS |
| 21 | #include "mlir/Dialect/Arith/Transforms/Passes.h.inc" |
| 22 | } // namespace arith |
| 23 | } // namespace mlir |
| 24 | |
| 25 | using namespace mlir; |
| 26 | using namespace bufferization; |
| 27 | |
| 28 | namespace { |
| 29 | /// Pass to bufferize Arith ops. |
| 30 | struct ArithBufferizePass |
| 31 | : public arith::impl::ArithBufferizePassBase<ArithBufferizePass> { |
| 32 | using ArithBufferizePassBase::ArithBufferizePassBase; |
| 33 | |
| 34 | ArithBufferizePass(uint64_t alignment = 0, bool constantOpOnly = false) |
| 35 | : constantOpOnly(constantOpOnly) { |
| 36 | this->alignment = alignment; |
| 37 | } |
| 38 | |
| 39 | void runOnOperation() override { |
| 40 | BufferizationOptions options = getPartialBufferizationOptions(); |
| 41 | if (constantOpOnly) { |
| 42 | options.opFilter.allowOperation<arith::ConstantOp>(); |
| 43 | } else { |
| 44 | options.opFilter.allowDialect<arith::ArithDialect>(); |
| 45 | } |
| 46 | options.bufferAlignment = alignment; |
| 47 | |
| 48 | if (failed(bufferizeOp(getOperation(), options))) |
| 49 | signalPassFailure(); |
| 50 | } |
| 51 | |
| 52 | void getDependentDialects(DialectRegistry ®istry) const override { |
| 53 | registry.insert<bufferization::BufferizationDialect, memref::MemRefDialect, |
| 54 | arith::ArithDialect>(); |
| 55 | arith::registerBufferizableOpInterfaceExternalModels(registry); |
| 56 | } |
| 57 | |
| 58 | private: |
| 59 | bool constantOpOnly; |
| 60 | }; |
| 61 | } // namespace |
| 62 | |
| 63 | std::unique_ptr<Pass> |
| 64 | mlir::arith::createConstantBufferizePass(uint64_t alignment) { |
| 65 | return std::make_unique<ArithBufferizePass>(args&: alignment, |
| 66 | /*constantOpOnly=*/args: true); |
| 67 | } |
| 68 |