torch-mlir/lib/Conversion/TorchToIREE/TorchToIREE.cpp

90 lines
3.2 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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 "npcomp/Conversion/TorchToIREE/TorchToIREE.h"
#include "../PassDetail.h"
#include "iree-dialects/Dialect/IREE/IREEOps.h"
#include "mlir/Dialect/StandardOps/IR/Ops.h"
#include "mlir/Dialect/Traits.h"
#include "mlir/IR/Matchers.h"
#include "mlir/Transforms/DialectConversion.h"
#include "npcomp/Dialect/Torch/IR/TorchOps.h"
#include "npcomp/Dialect/TorchConversion/IR/TorchConversionDialect.h"
#include "npcomp/Dialect/TorchConversion/Transforms/BackendTypeConversion.h"
using namespace mlir;
using namespace mlir::NPCOMP;
using namespace mlir::NPCOMP::Torch;
//===----------------------------------------------------------------------===//
// The patterns
//===----------------------------------------------------------------------===//
namespace {
class ConvertPrimListConstructOp
: public OpConversionPattern<PrimListConstructOp> {
public:
using OpConversionPattern::OpConversionPattern;
LogicalResult
matchAndRewrite(PrimListConstructOp op, ArrayRef<Value> operands,
ConversionPatternRewriter &rewriter) const override {
auto type = getTypeConverter()->convertType(op.getType());
auto capacity =
rewriter.create<ConstantIndexOp>(op.getLoc(), op->getNumOperands());
auto ireeList =
rewriter.replaceOpWithNewOp<iree::ListCreateOp>(op, type, capacity);
for (int i = 0, e = operands.size(); i != e; ++i) {
auto index = rewriter.create<ConstantIndexOp>(op.getLoc(), i);
rewriter.create<iree::ListSetOp>(op.getLoc(), ireeList, index,
operands[i]);
}
return success();
}
};
} // namespace
//===----------------------------------------------------------------------===//
// The pass
//===----------------------------------------------------------------------===//
namespace {
class ConvertTorchToIREE : public ConvertTorchToIREEBase<ConvertTorchToIREE> {
public:
void getDependentDialects(DialectRegistry &registry) const override {
registry.insert<StandardOpsDialect>();
TorchConversion::getBackendTypeConversionDependentDialects(registry);
}
void runOnOperation() override {
MLIRContext *context = &getContext();
ConversionTarget target(*context);
target.addLegalDialect<iree::IREEDialect>();
target.addLegalDialect<StandardOpsDialect>();
TypeConverter typeConverter;
typeConverter.addConversion([](Type type) { return type; });
TorchConversion::setupBackendTypeConversion(target, typeConverter);
RewritePatternSet patterns(context);
patterns.add<ConvertPrimListConstructOp>(typeConverter, context);
target.addIllegalOp<PrimListConstructOp>();
if (failed(applyPartialConversion(getOperation(), target,
std::move(patterns))))
return signalPassFailure();
}
};
} // namespace
std::unique_ptr<OperationPass<FuncOp>>
mlir::NPCOMP::createConvertTorchToIREEPass() {
return std::make_unique<ConvertTorchToIREE>();
}