| 1 | //===- TosaToArithPass.cpp - Lowering Tosa to Linalg Dialect -----------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This transformation pass legalizes Tosa operations to the Arith dialect. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "mlir/Conversion/TosaToArith/TosaToArith.h" |
| 14 | |
| 15 | #include "mlir/Dialect/Arith/IR/Arith.h" |
| 16 | #include "mlir/Dialect/Tosa/IR/TosaOps.h" |
| 17 | #include "mlir/Dialect/Tosa/Transforms/Passes.h" |
| 18 | #include "mlir/IR/PatternMatch.h" |
| 19 | #include "mlir/Pass/PassManager.h" |
| 20 | #include "mlir/Transforms/DialectConversion.h" |
| 21 | #include "mlir/Transforms/GreedyPatternRewriteDriver.h" |
| 22 | |
| 23 | namespace mlir { |
| 24 | #define GEN_PASS_DEF_TOSATOARITH |
| 25 | #include "mlir/Conversion/Passes.h.inc" |
| 26 | } // namespace mlir |
| 27 | |
| 28 | using namespace mlir; |
| 29 | using namespace tosa; |
| 30 | |
| 31 | namespace { |
| 32 | struct TosaToArith : public impl::TosaToArithBase<TosaToArith> { |
| 33 | public: |
| 34 | TosaToArith(TosaToArithOptions &options) : TosaToArithBase(options) {} |
| 35 | |
| 36 | void runOnOperation() override { |
| 37 | RewritePatternSet patterns(&getContext()); |
| 38 | ConversionTarget target(getContext()); |
| 39 | target.addIllegalOp<tosa::ConstOp>(); |
| 40 | target.addLegalDialect<arith::ArithDialect>(); |
| 41 | |
| 42 | mlir::tosa::populateTosaToArithConversionPatterns(patterns: &patterns); |
| 43 | |
| 44 | if (this->includeApplyRescale) { |
| 45 | mlir::tosa::populateTosaRescaleToArithConversionPatterns(patterns: &patterns, |
| 46 | include32Bit: this->use32Bit); |
| 47 | target.addIllegalOp<tosa::ApplyScaleOp>(); |
| 48 | } |
| 49 | |
| 50 | if (failed(applyPartialConversion(getOperation(), target, |
| 51 | std::move(patterns)))) |
| 52 | signalPassFailure(); |
| 53 | } |
| 54 | }; |
| 55 | } // namespace |
| 56 | |
| 57 | std::unique_ptr<Pass> mlir::tosa::createTosaToArith(bool includeApplyRescale, |
| 58 | bool use32BitApplyRescale) { |
| 59 | TosaToArithOptions options = {includeApplyRescale, use32BitApplyRescale}; |
| 60 | return std::make_unique<TosaToArith>(options); |
| 61 | } |
| 62 |