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