| 1 | //===- TestPatterns.cpp - LLVM dialect test patterns ----------------------===// |
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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 | #include "mlir/Conversion/LLVMCommon/TypeConverter.h" |
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| 10 | #include "mlir/Dialect/LLVMIR/LLVMDialect.h" |
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| 11 | #include "mlir/Dialect/LLVMIR/LLVMTypes.h" |
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| 12 | #include "mlir/Pass/Pass.h" |
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| 13 | #include "mlir/Transforms/DialectConversion.h" |
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| 14 | |
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| 15 | using namespace mlir; |
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| 16 | |
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| 17 | namespace { |
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| 18 | |
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| 19 | /// Replace this op (which is expected to have 1 result) with the operands. |
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| 20 | struct TestDirectReplacementOp : public ConversionPattern { |
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| 21 | TestDirectReplacementOp(MLIRContext *ctx, const TypeConverter &converter) |
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| 22 | : ConversionPattern(converter, "test.direct_replacement" , 1, ctx) {} |
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| 23 | LogicalResult |
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| 24 | matchAndRewrite(Operation *op, ArrayRef<Value> operands, |
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| 25 | ConversionPatternRewriter &rewriter) const final { |
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| 26 | if (op->getNumResults() != 1) |
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| 27 | return failure(); |
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| 28 | rewriter.replaceOpWithMultiple(op, newValues: {operands}); |
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| 29 | return success(); |
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| 30 | } |
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| 31 | }; |
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| 32 | |
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| 33 | struct TestLLVMLegalizePatternsPass |
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| 34 | : public PassWrapper<TestLLVMLegalizePatternsPass, OperationPass<>> { |
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| 35 | MLIR_DEFINE_EXPLICIT_INTERNAL_INLINE_TYPE_ID(TestLLVMLegalizePatternsPass) |
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| 36 | |
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| 37 | StringRef getArgument() const final { return "test-llvm-legalize-patterns" ; } |
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| 38 | StringRef getDescription() const final { |
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| 39 | return "Run LLVM dialect legalization patterns" ; |
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| 40 | } |
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| 41 | |
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| 42 | void getDependentDialects(DialectRegistry ®istry) const override { |
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| 43 | registry.insert<LLVM::LLVMDialect>(); |
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| 44 | } |
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| 45 | |
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| 46 | void runOnOperation() override { |
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| 47 | MLIRContext *ctx = &getContext(); |
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| 48 | LLVMTypeConverter converter(ctx); |
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| 49 | mlir::RewritePatternSet patterns(ctx); |
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| 50 | patterns.add<TestDirectReplacementOp>(arg&: ctx, args&: converter); |
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| 51 | |
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| 52 | // Define the conversion target used for the test. |
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| 53 | ConversionTarget target(*ctx); |
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| 54 | target.addLegalOp(op: OperationName("test.legal_op" , ctx)); |
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| 55 | |
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| 56 | // Handle a partial conversion. |
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| 57 | DenseSet<Operation *> unlegalizedOps; |
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| 58 | ConversionConfig config; |
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| 59 | config.unlegalizedOps = &unlegalizedOps; |
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| 60 | if (failed(applyPartialConversion(getOperation(), target, |
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| 61 | std::move(patterns), config))) |
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| 62 | getOperation()->emitError() << "applyPartialConversion failed" ; |
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| 63 | } |
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| 64 | }; |
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| 65 | } // namespace |
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| 66 | |
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| 67 | //===----------------------------------------------------------------------===// |
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| 68 | // PassRegistration |
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| 69 | //===----------------------------------------------------------------------===// |
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| 70 | |
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| 71 | namespace mlir { |
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| 72 | namespace test { |
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| 73 | void registerTestLLVMLegalizePatternsPass() { |
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| 74 | PassRegistration<TestLLVMLegalizePatternsPass>(); |
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| 75 | } |
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| 76 | } // namespace test |
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| 77 | } // namespace mlir |
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| 78 | |
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