xref: /llvm-project-15.0.7/mlir/lib/Dialect/SCF/Transforms/Bufferize.cpp (revision 8b68da2c)

//===- Bufferize.cpp - scf bufferize pass ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Bufferization/Transforms/Bufferize.h"
#include "PassDetail.h"
#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/Dialect/SCF/IR/SCF.h"
#include "mlir/Dialect/SCF/Transforms/Passes.h"
#include "mlir/Dialect/SCF/Transforms/Transforms.h"
#include "mlir/Transforms/DialectConversion.h"

using namespace mlir;
using namespace mlir::scf;

namespace {
struct SCFBufferizePass : public SCFBufferizeBase<SCFBufferizePass> {
  void runOnOperation() override {
    auto func = getOperation();
    auto *context = &getContext();

    bufferization::BufferizeTypeConverter typeConverter;
    RewritePatternSet patterns(context);
    ConversionTarget target(*context);

    bufferization::populateBufferizeMaterializationLegality(target);
    populateSCFStructuralTypeConversionsAndLegality(typeConverter, patterns,
                                                    target);
    if (failed(applyPartialConversion(func, target, std::move(patterns))))
      return signalPassFailure();
  };
};
} // namespace

std::unique_ptr<Pass> mlir::createSCFBufferizePass() {
  return std::make_unique<SCFBufferizePass>();
}