mirror of https://github.com/llvm/torch-mlir
91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "npcomp/Conversion/TorchToIREE/TorchToIREE.h"
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#include "../PassDetail.h"
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#include "iree-dialects/Dialect/IREE/IREEOps.h"
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#include "mlir/Dialect/StandardOps/IR/Ops.h"
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#include "mlir/Dialect/Traits.h"
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#include "mlir/IR/Matchers.h"
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#include "mlir/Transforms/DialectConversion.h"
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#include "npcomp/Dialect/Torch/IR/TorchOps.h"
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#include "npcomp/Dialect/TorchConversion/IR/TorchConversionDialect.h"
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#include "npcomp/Dialect/TorchConversion/Transforms/BackendTypeConversion.h"
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using namespace mlir;
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using namespace mlir::NPCOMP;
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using namespace mlir::NPCOMP::Torch;
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//===----------------------------------------------------------------------===//
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// The patterns
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//===----------------------------------------------------------------------===//
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namespace {
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class ConvertPrimListConstructOp
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: public OpConversionPattern<PrimListConstructOp> {
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public:
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using OpConversionPattern::OpConversionPattern;
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LogicalResult
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matchAndRewrite(PrimListConstructOp op, ArrayRef<Value> operands,
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ConversionPatternRewriter &rewriter) const override {
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auto type = getTypeConverter()->convertType(op.getType());
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auto size =
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rewriter.create<ConstantIndexOp>(op.getLoc(), op->getNumOperands());
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auto ireeList =
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rewriter.replaceOpWithNewOp<iree::ListCreateOp>(op, type, size);
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rewriter.create<iree::ListResizeOp>(op.getLoc(), ireeList, size);
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for (int i = 0, e = operands.size(); i != e; ++i) {
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auto index = rewriter.create<ConstantIndexOp>(op.getLoc(), i);
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rewriter.create<iree::ListSetOp>(op.getLoc(), ireeList, index,
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operands[i]);
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}
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return success();
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}
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};
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} // namespace
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//===----------------------------------------------------------------------===//
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// The pass
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//===----------------------------------------------------------------------===//
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namespace {
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class ConvertTorchToIREE : public ConvertTorchToIREEBase<ConvertTorchToIREE> {
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public:
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry.insert<StandardOpsDialect>();
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TorchConversion::getBackendTypeConversionDependentDialects(registry);
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}
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void runOnOperation() override {
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MLIRContext *context = &getContext();
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ConversionTarget target(*context);
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target.addLegalDialect<iree::IREEDialect>();
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target.addLegalDialect<StandardOpsDialect>();
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TypeConverter typeConverter;
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typeConverter.addConversion([](Type type) { return type; });
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TorchConversion::setupBackendTypeConversion(target, typeConverter);
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RewritePatternSet patterns(context);
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patterns.add<ConvertPrimListConstructOp>(typeConverter, context);
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target.addIllegalOp<PrimListConstructOp>();
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if (failed(applyPartialConversion(getOperation(), target,
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std::move(patterns))))
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return signalPassFailure();
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}
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};
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} // namespace
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std::unique_ptr<OperationPass<FuncOp>>
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mlir::NPCOMP::createConvertTorchToIREEPass() {
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return std::make_unique<ConvertTorchToIREE>();
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}
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