| 1 | //===- LegalizeForLLVMExport.cpp - Prepare AMX for LLVM translation ----===// |
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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/Dialect/AMX/Transforms.h" |
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| 10 | |
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| 11 | #include "mlir/Conversion/ConvertToLLVM/ToLLVMInterface.h" |
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| 12 | #include "mlir/Conversion/LLVMCommon/ConversionTarget.h" |
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| 13 | #include "mlir/Conversion/LLVMCommon/Pattern.h" |
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| 14 | #include "mlir/Dialect/AMX/AMXDialect.h" |
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| 15 | #include "mlir/IR/PatternMatch.h" |
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| 16 | |
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| 17 | using namespace mlir; |
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| 18 | using namespace mlir::amx; |
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| 19 | |
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| 20 | namespace { |
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| 21 | |
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| 22 | /// Generic one-to-one conversion of simply mappable operations into calls |
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| 23 | /// to their respective LLVM intrinsics. |
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| 24 | struct AMXIntrinsicOpConversion |
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| 25 | : public ConvertOpInterfaceToLLVMPattern<amx::AMXIntrinsicOp> { |
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| 26 | using ConvertOpInterfaceToLLVMPattern::ConvertOpInterfaceToLLVMPattern; |
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| 27 | |
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| 28 | LogicalResult |
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| 29 | matchAndRewrite(amx::AMXIntrinsicOp op, ArrayRef<Value> operands, |
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| 30 | ConversionPatternRewriter &rewriter) const override { |
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| 31 | const LLVMTypeConverter &typeConverter = *getTypeConverter(); |
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| 32 | return LLVM::detail::intrinsicRewrite( |
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| 33 | op, intrinsic: rewriter.getStringAttr(bytes: op.getIntrinsicName()), |
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| 34 | operands: op.getIntrinsicOperands(operands, typeConverter, rewriter), |
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| 35 | typeConverter, rewriter); |
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| 36 | } |
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| 37 | }; |
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| 38 | |
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| 39 | } // namespace |
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| 40 | |
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| 41 | void mlir::populateAMXLegalizeForLLVMExportPatterns( |
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| 42 | LLVMTypeConverter &converter, RewritePatternSet &patterns) { |
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| 43 | patterns.add<AMXIntrinsicOpConversion>(arg&: converter); |
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| 44 | converter.addConversion(callback: [&](amx::TileType type) { |
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| 45 | return LLVM::LLVMX86AMXType::get(ctx: &converter.getContext()); |
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| 46 | }); |
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| 47 | } |
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| 48 | |
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| 49 | void mlir::configureAMXLegalizeForExportTarget(LLVMConversionTarget &target) { |
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| 50 | target.addIllegalDialect<AMXDialect>(); |
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| 51 | } |
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| 52 | |
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| 53 | namespace { |
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| 54 | /// Implement the interface to convert AMX to LLVM. |
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| 55 | struct AMXToLLVMDialectInterface : public ConvertToLLVMPatternInterface { |
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| 56 | using ConvertToLLVMPatternInterface::ConvertToLLVMPatternInterface; |
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| 57 | |
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| 58 | void populateConvertToLLVMConversionPatterns( |
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| 59 | ConversionTarget &target, LLVMTypeConverter &typeConverter, |
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| 60 | RewritePatternSet &patterns) const final { |
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| 61 | populateAMXLegalizeForLLVMExportPatterns(converter&: typeConverter, patterns); |
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| 62 | } |
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| 63 | }; |
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| 64 | } // namespace |
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| 65 | |
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| 66 | void mlir::registerConvertAMXToLLVMInterface(DialectRegistry ®istry) { |
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| 67 | registry.addExtension(extensionFn: +[](MLIRContext *ctx, amx::AMXDialect *dialect) { |
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| 68 | dialect->addInterfaces<AMXToLLVMDialectInterface>(); |
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| 69 | }); |
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| 70 | } |
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| 71 | |
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