llvm/bolt/include/bolt/Passes/DominatorAnalysis.h

//===- bolt/Passes/DominatorAnalysis.h --------------------------*- 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
//
//===----------------------------------------------------------------------===//

#ifndef BOLT_PASSES_DOMINATORANALYSIS_H
#define BOLT_PASSES_DOMINATORANALYSIS_H

#include "bolt/Passes/DataflowAnalysis.h"
#include "llvm/Support/CommandLine.h"

namespace opts {
extern llvm::cl::opt<bool> TimeOpts;
}

namespace llvm {
namespace bolt {

/// The whole reason for running a dominator analysis at the instruction level
/// (that is much more expensive than at the BB level) is because of invoke
/// instructions that may cause early exits in the middle of the BB, making half
/// of the BB potentially dominate the landing pad but not instructions after
/// the invoke.
template <bool Backward = false>
class DominatorAnalysis
    : public InstrsDataflowAnalysis<DominatorAnalysis<Backward>, Backward> { … };

} // end namespace bolt
} // end namespace llvm

#endif