af22e274e9
This adds - `mlir::tosa::populateTosaToLinalgTypeConversion` which converts tensors of unsigned integers into tensors of signless integers - modifies the `tosa.reshape` lowering in TosaToTensor to use the type converter correctly I choose to implement the type converter in `mlir/Conversion/TosaToLinalg/TosaToLinalg.h` instead of `mlir/Conversion/TosaToTensor/TosaToTensor.h` because I need the same type converter in the TosaToLinalg lowerings (future PR). Alternatively, I could duplicate the type converter so it exists both in TosaToLinalg and TosaToTensor. Let me know if you prefer that.
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
//===- TosaToTensorPass.cpp - Lowering Tosa to Tensor Dialect -------------===//
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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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//
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// This transformation pass legalizes Tosa operations to the Tensor dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/TosaToTensor/TosaToTensor.h"
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#include "mlir/Dialect/Arith/IR/Arith.h"
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#include "mlir/Dialect/Tensor/IR/Tensor.h"
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#include "mlir/Dialect/Tosa/IR/TosaOps.h"
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#include "mlir/Dialect/Tosa/Transforms/Passes.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Pass/PassManager.h"
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#include "mlir/Transforms/DialectConversion.h"
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#include "mlir/Transforms/GreedyPatternRewriteDriver.h"
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namespace mlir {
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#define GEN_PASS_DEF_TOSATOTENSOR
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#include "mlir/Conversion/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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using namespace tosa;
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namespace {
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struct TosaToTensor : public impl::TosaToTensorBase<TosaToTensor> {
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public:
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void runOnOperation() override {
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RewritePatternSet patterns(&getContext());
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ConversionTarget target(getContext());
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target.addIllegalOp<tosa::ConcatOp>();
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target.addIllegalOp<tosa::ReshapeOp>();
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target.addIllegalOp<tosa::SliceOp>();
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target.addIllegalOp<tosa::PadOp>();
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target.addLegalDialect<arith::ArithDialect>();
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target.addLegalDialect<tensor::TensorDialect>();
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TypeConverter converter;
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mlir::tosa::populateTosaTypeConversion(converter);
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mlir::tosa::populateTosaToTensorConversionPatterns(converter, &patterns);
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if (failed(applyPartialConversion(getOperation(), target,
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std::move(patterns))))
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signalPassFailure();
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}
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};
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} // namespace
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std::unique_ptr<Pass> mlir::tosa::createTosaToTensor() {
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return std::make_unique<TosaToTensor>();
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}
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