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/IR/Arithmetic.h"
12 #include "mlir/Dialect/Arithmetic/Transforms/BufferizableOpInterfaceImpl.h"
13 #include "mlir/Dialect/Arithmetic/Transforms/Passes.h"
14 #include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h"
15 #include "mlir/Dialect/Bufferization/IR/Bufferization.h"
16 #include "mlir/Dialect/Bufferization/Transforms/Bufferize.h"
17 #include "mlir/Dialect/MemRef/IR/MemRef.h"
18 
19 using namespace mlir;
20 using namespace bufferization;
21 
22 namespace {
23 /// Pass to bufferize Arithmetic ops.
24 struct ArithmeticBufferizePass
25     : public ArithmeticBufferizeBase<ArithmeticBufferizePass> {
26   ArithmeticBufferizePass(uint64_t alignment = 0, bool constantOpOnly = false)
27       : ArithmeticBufferizeBase<ArithmeticBufferizePass>(),
28         constantOpOnly(constantOpOnly) {
29     this->alignment = alignment;
30   }
31 
32   void runOnOperation() override {
33     BufferizationOptions options = getPartialBufferizationOptions();
34     if (constantOpOnly) {
35       options.opFilter.allowOperation<arith::ConstantOp>();
36     } else {
37       options.opFilter.allowDialect<arith::ArithmeticDialect>();
38     }
39     options.bufferAlignment = alignment;
40 
41     if (failed(bufferizeOp(getOperation(), options)))
42       signalPassFailure();
43   }
44 
45   void getDependentDialects(DialectRegistry &registry) const override {
46     registry.insert<bufferization::BufferizationDialect, memref::MemRefDialect,
47                     arith::ArithmeticDialect>();
48     arith::registerBufferizableOpInterfaceExternalModels(registry);
49   }
50 
51 private:
52   bool constantOpOnly;
53 };
54 } // namespace
55 
56 std::unique_ptr<Pass> mlir::arith::createArithmeticBufferizePass() {
57   return std::make_unique<ArithmeticBufferizePass>();
58 }
59 
60 std::unique_ptr<Pass>
61 mlir::arith::createConstantBufferizePass(uint64_t alignment) {
62   return std::make_unique<ArithmeticBufferizePass>(alignment,
63                                                    /*constantOpOnly=*/true);
64 }
65