llvm/llvm/unittests/IR/CFGBuilder.h

//===- CFGBuilder.h - CFG building and updating utility ----------*- 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
//
//===----------------------------------------------------------------------===//
/// \file
/// CFGBuilders provides utilities fo building and updating CFG for testing
/// purposes.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_UNITTESTS_CFG_BUILDER_H
#define LLVM_UNITTESTS_CFG_BUILDER_H

#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/Debug.h"

#include <memory>
#include <optional>
#include <set>
#include <tuple>
#include <vector>

namespace llvm {

class LLVMContext;
class Module;
class Function;
class BasicBlock;
class raw_ostream;

struct CFGHolder { … };

/// \brief
/// CFGBuilder builds IR with specific CFG, based on the supplied list of arcs.
/// It's able to apply the provided updates and automatically modify the IR.
///
/// Internally it makes every basic block end with either SwitchInst or with
/// UnreachableInst. When all arc to a BB are deleted, the BB remains in the
/// function and doesn't get deleted.
///
class CFGBuilder { … };

} // namespace llvm

#endif