08e4f07852
- Use TypeRange instead of ArrayRef<Type> where possible. - Change some of the custom builders to also use TypeRange Differential Revision: https://reviews.llvm.org/D87944
77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
//===- OpenMPToLLVM.cpp - conversion from OpenMP to LLVM dialect ----------===//
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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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#include "mlir/Conversion/OpenMPToLLVM/ConvertOpenMPToLLVM.h"
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#include "../PassDetail.h"
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#include "mlir/Conversion/StandardToLLVM/ConvertStandardToLLVM.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "mlir/Dialect/OpenMP/OpenMPDialect.h"
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using namespace mlir;
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namespace {
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struct ParallelOpConversion : public ConvertToLLVMPattern {
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explicit ParallelOpConversion(MLIRContext *context,
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LLVMTypeConverter &typeConverter)
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: ConvertToLLVMPattern(omp::ParallelOp::getOperationName(), context,
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typeConverter) {}
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LogicalResult
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matchAndRewrite(Operation *op, ArrayRef<Value> operands,
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ConversionPatternRewriter &rewriter) const override {
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auto curOp = cast<omp::ParallelOp>(op);
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auto newOp = rewriter.create<omp::ParallelOp>(curOp.getLoc(), TypeRange(),
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operands, curOp.getAttrs());
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rewriter.inlineRegionBefore(curOp.region(), newOp.region(),
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newOp.region().end());
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if (failed(rewriter.convertRegionTypes(&newOp.region(), typeConverter)))
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return failure();
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rewriter.eraseOp(op);
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return success();
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}
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};
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} // namespace
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void mlir::populateOpenMPToLLVMConversionPatterns(
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MLIRContext *context, LLVMTypeConverter &converter,
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OwningRewritePatternList &patterns) {
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patterns.insert<ParallelOpConversion>(context, converter);
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}
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namespace {
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struct ConvertOpenMPToLLVMPass
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: public ConvertOpenMPToLLVMBase<ConvertOpenMPToLLVMPass> {
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void runOnOperation() override;
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};
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} // namespace
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void ConvertOpenMPToLLVMPass::runOnOperation() {
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auto module = getOperation();
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MLIRContext *context = &getContext();
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// Convert to OpenMP operations with LLVM IR dialect
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OwningRewritePatternList patterns;
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LLVMTypeConverter converter(&getContext());
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populateStdToLLVMConversionPatterns(converter, patterns);
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populateOpenMPToLLVMConversionPatterns(context, converter, patterns);
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LLVMConversionTarget target(getContext());
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target.addDynamicallyLegalOp<omp::ParallelOp>(
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[&](omp::ParallelOp op) { return converter.isLegal(&op.getRegion()); });
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target.addLegalOp<omp::TerminatorOp, omp::TaskyieldOp, omp::FlushOp,
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omp::BarrierOp, omp::TaskwaitOp>();
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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::createConvertOpenMPToLLVMPass() {
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return std::make_unique<ConvertOpenMPToLLVMPass>();
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}
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