llvm/llvm/include/llvm/ExecutionEngine/Orc/Layer.h

//===---------------- Layer.h -- Layer interfaces --------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Layer interfaces.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_EXECUTIONENGINE_ORC_LAYER_H
#define LLVM_EXECUTIONENGINE_ORC_LAYER_H

#include "llvm/ExecutionEngine/Orc/Core.h"
#include "llvm/ExecutionEngine/Orc/Mangling.h"
#include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/ExtensibleRTTI.h"
#include "llvm/Support/MemoryBuffer.h"

namespace llvm {
namespace orc {

/// IRMaterializationUnit is a convenient base class for MaterializationUnits
/// wrapping LLVM IR. Represents materialization responsibility for all symbols
/// in the given module. If symbols are overridden by other definitions, then
/// their linkage is changed to available-externally.
class IRMaterializationUnit : public MaterializationUnit { … };

/// Interface for layers that accept LLVM IR.
class IRLayer { … };

/// MaterializationUnit that materializes modules by calling the 'emit' method
/// on the given IRLayer.
class BasicIRLayerMaterializationUnit : public IRMaterializationUnit { … };

/// Interface for Layers that accept object files.
class ObjectLayer : public RTTIExtends<ObjectLayer, RTTIRoot> { … };

/// Materializes the given object file (represented by a MemoryBuffer
/// instance) by calling 'emit' on the given ObjectLayer.
class BasicObjectLayerMaterializationUnit : public MaterializationUnit { … };

} // End namespace orc
} // End namespace llvm

#endif // LLVM_EXECUTIONENGINE_ORC_LAYER_H