d93d8fcdec
Following the previous revision `D81100`, this commit implements a templated class that would provide conversion patterns for “straightforward” SPIR-V ops into LLVM dialect. Templating allows to abstract away from concrete implementation for each specific op. Those are mainly binary operations. Currently supported and tested ops are: - Arithmetic ops: `IAdd`, `ISub`, `IMul`, `FAdd`, `FSub`, `FMul`, `FDiv`, `FNegate`, `SDiv`, `SRem` and `UDiv` - Bitwise ops: `BitwiseAnd`, `BitwiseOr`, `BitwiseXor` The implementation relies on `SPIRVToLLVMConversion` class that makes use of `OpConversionPattern`. Differential Revision: https://reviews.llvm.org/D81305
75 lines
3.3 KiB
C++
75 lines
3.3 KiB
C++
//===- ConvertSPIRVToLLVM.cpp - SPIR-V dialect to LLVM dialect conversion -===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements patterns to convert SPIR-V dialect to LLVM dialect.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVM.h"
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#include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVM.h"
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#include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVMPass.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "mlir/Dialect/SPIRV/SPIRVDialect.h"
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#include "mlir/Dialect/SPIRV/SPIRVOps.h"
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#include "mlir/Dialect/StandardOps/IR/Ops.h"
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#include "mlir/IR/Module.h"
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#include "mlir/IR/PatternMatch.h"
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#include "mlir/Support/LogicalResult.h"
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#include "mlir/Transforms/DialectConversion.h"
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using namespace mlir;
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//===----------------------------------------------------------------------===//
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// Operation conversion
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//===----------------------------------------------------------------------===//
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namespace {
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/// Converts SPIR-V operations that have straightforward LLVM equivalent
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/// into LLVM dialect operations.
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template <typename SPIRVOp, typename LLVMOp>
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class DirectConversionPattern : public SPIRVToLLVMConversion<SPIRVOp> {
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public:
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using SPIRVToLLVMConversion<SPIRVOp>::SPIRVToLLVMConversion;
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LogicalResult
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matchAndRewrite(SPIRVOp operation, ArrayRef<Value> operands,
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ConversionPatternRewriter &rewriter) const override {
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auto dstType = this->typeConverter.convertType(operation.getType());
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if (!dstType)
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return failure();
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rewriter.template replaceOpWithNewOp<LLVMOp>(operation, dstType, operands);
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return success();
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}
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};
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} // namespace
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//===----------------------------------------------------------------------===//
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// Pattern population
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//===----------------------------------------------------------------------===//
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void mlir::populateSPIRVToLLVMConversionPatterns(
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MLIRContext *context, LLVMTypeConverter &typeConverter,
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OwningRewritePatternList &patterns) {
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patterns.insert<DirectConversionPattern<spirv::IAddOp, LLVM::AddOp>,
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DirectConversionPattern<spirv::IMulOp, LLVM::MulOp>,
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DirectConversionPattern<spirv::ISubOp, LLVM::SubOp>,
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DirectConversionPattern<spirv::FAddOp, LLVM::FAddOp>,
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DirectConversionPattern<spirv::FNegateOp, LLVM::FNegOp>,
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DirectConversionPattern<spirv::FDivOp, LLVM::FDivOp>,
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DirectConversionPattern<spirv::FRemOp, LLVM::FRemOp>,
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DirectConversionPattern<spirv::FSubOp, LLVM::FSubOp>,
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DirectConversionPattern<spirv::UDivOp, LLVM::UDivOp>,
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DirectConversionPattern<spirv::SDivOp, LLVM::SDivOp>,
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DirectConversionPattern<spirv::SRemOp, LLVM::SRemOp>,
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DirectConversionPattern<spirv::BitwiseAndOp, LLVM::AndOp>,
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DirectConversionPattern<spirv::BitwiseOrOp, LLVM::OrOp>,
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DirectConversionPattern<spirv::BitwiseXorOp, LLVM::XOrOp>>(
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context, typeConverter);
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}
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