| 1 | //===- TosaToMLProgram.cpp - Lowering Tosa to MLProgram Dialect------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // These rewriters lower from the TOSA dialect to the MLProgram dialect. |
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| 10 | // |
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| 11 | //===----------------------------------------------------------------------===// |
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| 12 | |
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| 13 | #include "mlir/Conversion/TosaToMLProgram/TosaToMLProgram.h" |
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| 14 | #include "mlir/Dialect/MLProgram/IR/MLProgram.h" |
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| 15 | #include "mlir/Dialect/Tosa/IR/TosaOps.h" |
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| 16 | #include "mlir/IR/IRMapping.h" |
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| 17 | #include "mlir/IR/PatternMatch.h" |
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| 18 | |
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| 19 | using namespace mlir; |
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| 20 | using namespace tosa; |
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| 21 | namespace { |
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| 22 | |
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| 23 | class VariableOpConverter : public OpRewritePattern<tosa::VariableOp> { |
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| 24 | public: |
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| 25 | using OpRewritePattern<tosa::VariableOp>::OpRewritePattern; |
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| 26 | |
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| 27 | LogicalResult matchAndRewrite(tosa::VariableOp op, |
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| 28 | PatternRewriter &rewriter) const final { |
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| 29 | auto variableType = tosa::getVariableType(op); |
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| 30 | auto newVariable = rewriter.create<mlir::ml_program::GlobalOp>( |
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| 31 | op.getLoc(), op.getName(), variableType, /*is_mutable=*/true, |
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| 32 | op.getInitialValueAttr(), /*sym_visibility=*/nullptr); |
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| 33 | newVariable.setPrivate(); |
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| 34 | rewriter.replaceOp(op, newVariable); |
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| 35 | return success(); |
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| 36 | } |
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| 37 | }; |
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| 38 | |
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| 39 | class VariableWriteOpConverter |
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| 40 | : public OpRewritePattern<tosa::VariableWriteOp> { |
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| 41 | public: |
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| 42 | using OpRewritePattern<tosa::VariableWriteOp>::OpRewritePattern; |
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| 43 | |
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| 44 | LogicalResult matchAndRewrite(tosa::VariableWriteOp op, |
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| 45 | PatternRewriter &rewriter) const final { |
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| 46 | auto globalSymbolRef = |
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| 47 | SymbolRefAttr::get(rewriter.getContext(), op.getName()); |
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| 48 | auto newVariableWrite = rewriter.create<ml_program::GlobalStoreOp>( |
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| 49 | op.getLoc(), globalSymbolRef, op.getInput1()); |
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| 50 | rewriter.replaceOp(op, newVariableWrite); |
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| 51 | return success(); |
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| 52 | } |
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| 53 | }; |
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| 54 | |
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| 55 | class VariableReadOpConverter : public OpRewritePattern<tosa::VariableReadOp> { |
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| 56 | public: |
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| 57 | using OpRewritePattern<tosa::VariableReadOp>::OpRewritePattern; |
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| 58 | |
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| 59 | LogicalResult matchAndRewrite(tosa::VariableReadOp op, |
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| 60 | PatternRewriter &rewriter) const final { |
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| 61 | auto globalSymbolRef = |
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| 62 | SymbolRefAttr::get(rewriter.getContext(), op.getName()); |
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| 63 | auto newVariableRead = rewriter.create<ml_program::GlobalLoadOp>( |
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| 64 | op.getLoc(), op.getType(), globalSymbolRef); |
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| 65 | rewriter.replaceOp(op, newVariableRead); |
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| 66 | |
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| 67 | return success(); |
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| 68 | } |
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| 69 | }; |
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| 70 | |
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| 71 | } // namespace |
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| 72 | |
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| 73 | void mlir::tosa::populateTosaToMLProgramConversionPatterns( |
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| 74 | RewritePatternSet *patterns) { |
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| 75 | patterns->add<VariableOpConverter, VariableWriteOpConverter, |
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| 76 | VariableReadOpConverter>(arg: patterns->getContext()); |
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| 77 | } |
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| 78 | |
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