llvm/llvm/include/llvm/Analysis/DominanceFrontier.h

//===- llvm/Analysis/DominanceFrontier.h - Dominator Frontiers --*- 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
//
//===----------------------------------------------------------------------===//
//
// This file defines the DominanceFrontier class, which calculate and holds the
// dominance frontier for a function.
//
// This should be considered deprecated, don't add any more uses of this data
// structure.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ANALYSIS_DOMINANCEFRONTIER_H
#define LLVM_ANALYSIS_DOMINANCEFRONTIER_H

#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/GraphTraits.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/GenericDomTree.h"
#include <cassert>
#include <utility>

namespace llvm {

class BasicBlock;
class Function;
class raw_ostream;

//===----------------------------------------------------------------------===//
/// DominanceFrontierBase - Common base class for computing forward and inverse
/// dominance frontiers for a function.
///
template <class BlockT, bool IsPostDom>
class DominanceFrontierBase { … };

//===-------------------------------------
/// DominanceFrontier Class - Concrete subclass of DominanceFrontierBase that is
/// used to compute a forward dominator frontiers.
///
template <class BlockT>
class ForwardDominanceFrontierBase
    : public DominanceFrontierBase<BlockT, false> { … };

class DominanceFrontier : public ForwardDominanceFrontierBase<BasicBlock> { … };

class DominanceFrontierWrapperPass : public FunctionPass { … };

extern template class DominanceFrontierBase<BasicBlock, false>;
extern template class DominanceFrontierBase<BasicBlock, true>;
extern template class ForwardDominanceFrontierBase<BasicBlock>;

/// Analysis pass which computes a \c DominanceFrontier.
class DominanceFrontierAnalysis
    : public AnalysisInfoMixin<DominanceFrontierAnalysis> { … };

/// Printer pass for the \c DominanceFrontier.
class DominanceFrontierPrinterPass
    : public PassInfoMixin<DominanceFrontierPrinterPass> { … };

} // end namespace llvm

#endif // LLVM_ANALYSIS_DOMINANCEFRONTIER_H