torch-mlir/lib/Conversion/TorchToLinalg/CustomOpExample.cpp

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//===----------------------------------------------------------------------===//
//
// 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
// Also available under a BSD-style license. See LICENSE.
//
//===----------------------------------------------------------------------===//
#include "torch-mlir/Conversion/TorchToLinalg/TorchToLinalg.h"
#include "../PassDetail.h"
#include "PopulatePatterns.h"
#include "Utils.h"
#include "mlir/IR/Matchers.h"
#include "torch-mlir/Conversion/Utils/Utils.h"
#include "torch-mlir/Dialect/Torch/IR/TorchDialect.h"
#include "torch-mlir/Dialect/Torch/IR/TorchOps.h"
#include "torch-mlir/Dialect/Torch/Utils/TorchUpstream.h"
#include "torch-mlir/Dialect/Torch/Utils/Utils.h"
using namespace mlir;
using namespace mlir::torch;
using namespace mlir::torch::Torch;
namespace {
class ConvertCustomOpExample
: public OpConversionPattern<TorchMlirCustomOpExampleIdentityOp> {
public:
using OpConversionPattern::OpConversionPattern;
LogicalResult matchAndRewrite(TorchMlirCustomOpExampleIdentityOp op,
OpAdaptor adaptor,
ConversionPatternRewriter &rewriter
) const override {
// Type checks.
if (failed(verifyLinalgCompatibleTypes(op, rewriter)))
return failure();
// Since the example op does nothing, we simply replace the uses of the
// return value with its argument, then remove the op.
rewriter.replaceOp(op, op->getOperands());
return success();
}
};
} // namespace
void mlir::torch::torch_to_linalg::populateCustomOpExamplePatternsAndLegality(
TypeConverter &typeConverter,
RewritePatternSet &patterns,
ConversionTarget &target) {
MLIRContext *context = patterns.getContext();
target.addIllegalOp<TorchMlirCustomOpExampleIdentityOp>();
patterns.add<ConvertCustomOpExample>(typeConverter, context);
}