1 //===- Bufferize.cpp - Bufferization for Arithmetic 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 "PassDetail.h"
10 
11 #include "mlir/Dialect/Arithmetic/Transforms/BufferizableOpInterfaceImpl.h"
12 #include "mlir/Dialect/Arithmetic/Transforms/Passes.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 using namespace mlir;
19 using namespace bufferization;
20 
21 namespace {
22 /// Pass to bufferize Arithmetic ops.
23 struct ArithmeticBufferizePass
24     : public ArithmeticBufferizeBase<ArithmeticBufferizePass> {
25   ArithmeticBufferizePass(uint64_t alignment = 0, bool constantOpOnly = false)
26       : ArithmeticBufferizeBase<ArithmeticBufferizePass>(),
27         constantOpOnly(constantOpOnly) {
28     this->alignment = alignment;
29   }
30 
31   void runOnOperation() override {
32     BufferizationOptions options = getPartialBufferizationOptions();
33     if (constantOpOnly) {
34       options.addToOperationFilter<arith::ConstantOp>();
35     } else {
36       options.addToDialectFilter<arith::ArithmeticDialect>();
37     }
38     options.bufferAlignment = alignment;
39 
40     if (failed(bufferizeOp(getOperation(), options)))
41       signalPassFailure();
42   }
43 
44   void getDependentDialects(DialectRegistry &registry) const override {
45     registry.insert<bufferization::BufferizationDialect, memref::MemRefDialect,
46                     arith::ArithmeticDialect>();
47     arith::registerBufferizableOpInterfaceExternalModels(registry);
48   }
49 
50 private:
51   bool constantOpOnly;
52 };
53 } // namespace
54 
55 std::unique_ptr<Pass> mlir::arith::createArithmeticBufferizePass() {
56   return std::make_unique<ArithmeticBufferizePass>();
57 }
58 
59 std::unique_ptr<Pass>
60 mlir::arith::createConstantBufferizePass(uint64_t alignment) {
61   return std::make_unique<ArithmeticBufferizePass>(alignment,
62                                                    /*constantOpOnly=*/true);
63 }
64