8d67d187ba
This revision removes the TypeConverter parameter passed to the apply* methods, and instead moves the responsibility of region type conversion to patterns. The types of a region can be converted using the 'convertRegionTypes' method, which acts similarly to the existing 'applySignatureConversion'. This method ensures that all blocks within, and including those moved into, a region will have the block argument types converted using the provided converter. This has the benefit of making more of the legalization logic controlled by patterns, instead of being handled explicitly by the driver. It also opens up the possibility to support multiple type conversions at some point in the future. This revision also adds a new utility class `FailureOr<T>` that provides a LogicalResult friendly facility for returning a failure or a valid result value. Differential Revision: https://reviews.llvm.org/D81681
54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
//===- ConvertSPIRVToLLVMPass.cpp - Convert SPIR-V ops to LLVM ops --------===//
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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 a pass to convert MLIR SPIR-V ops into LLVM ops
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Conversion/SPIRVToLLVM/ConvertSPIRVToLLVMPass.h"
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#include "../PassDetail.h"
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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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using namespace mlir;
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namespace {
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/// A pass converting MLIR SPIR-V operations into LLVM dialect.
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class ConvertSPIRVToLLVMPass
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: public ConvertSPIRVToLLVMBase<ConvertSPIRVToLLVMPass> {
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void runOnOperation() override;
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};
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} // namespace
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void ConvertSPIRVToLLVMPass::runOnOperation() {
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MLIRContext *context = &getContext();
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ModuleOp module = getOperation();
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LLVMTypeConverter converter(&getContext());
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OwningRewritePatternList patterns;
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populateSPIRVToLLVMConversionPatterns(context, converter, patterns);
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// Currently pulls in Std to LLVM conversion patterns
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// that help with testing. This allows to convert
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// function arguments to LLVM.
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populateStdToLLVMConversionPatterns(converter, patterns);
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ConversionTarget target(getContext());
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target.addIllegalDialect<spirv::SPIRVDialect>();
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target.addLegalDialect<LLVM::LLVMDialect>();
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if (failed(applyPartialConversion(module, target, patterns)))
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signalPassFailure();
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}
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std::unique_ptr<OperationPass<ModuleOp>> mlir::createConvertSPIRVToLLVMPass() {
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return std::make_unique<ConvertSPIRVToLLVMPass>();
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}
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