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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements lowering of CIR attributes and operations directly to
// LLVMIR.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/IR/DialectRegistry.h"
#include "mlir/Target/LLVMIR/LLVMTranslationInterface.h"
#include "mlir/Target/LLVMIR/ModuleTranslation.h"
#include "clang/CIR/Dialect/IR/CIRAttrs.h"
#include "clang/CIR/Dialect/IR/CIRDialect.h"
#include "clang/CIR/MissingFeatures.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/GlobalVariable.h"
using namespace llvm;
namespace cir {
namespace direct {
/// Implementation of the dialect interface that converts CIR attributes to LLVM
/// IR metadata.
class CIRDialectLLVMIRTranslationInterface
: public mlir::LLVMTranslationDialectInterface {
public:
using LLVMTranslationDialectInterface::LLVMTranslationDialectInterface;
/// Translates the given operation to LLVM IR using the provided IR builder
/// and saving the state in `moduleTranslation`.
mlir::LogicalResult convertOperation(
mlir::Operation *op, llvm::IRBuilderBase &builder,
mlir::LLVM::ModuleTranslation &moduleTranslation) const final {
if (auto cirOp = llvm::dyn_cast<mlir::LLVM::ZeroOp>(op))
moduleTranslation.mapValue(cirOp.getResult()) =
llvm::Constant::getNullValue(
moduleTranslation.convertType(cirOp.getType()));
return mlir::success();
}
};
void registerCIRDialectTranslation(mlir::DialectRegistry ®istry) {
registry.insert<cir::CIRDialect>();
registry.addExtension(+[](mlir::MLIRContext *ctx, cir::CIRDialect *dialect) {
dialect->addInterfaces<CIRDialectLLVMIRTranslationInterface>();
});
}
} // namespace direct
} // namespace cir
namespace mlir {
void registerCIRDialectTranslation(mlir::MLIRContext &context) {
mlir::DialectRegistry registry;
cir::direct::registerCIRDialectTranslation(registry);
context.appendDialectRegistry(registry);
}
} // namespace mlir
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