llvm/llvm/include/llvm/Transforms/Utils/GlobalStatus.h

//===- GlobalStatus.h - Compute status info for globals ---------*- 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 LLVM_TRANSFORMS_UTILS_GLOBALSTATUS_H
#define LLVM_TRANSFORMS_UTILS_GLOBALSTATUS_H

#include "llvm/IR/Instructions.h"
#include "llvm/Support/AtomicOrdering.h"

namespace llvm {

class Constant;
class Function;
class Value;

/// It is safe to destroy a constant iff it is only used by constants itself.
/// Note that constants cannot be cyclic, so this test is pretty easy to
/// implement recursively.
///
bool isSafeToDestroyConstant(const Constant *C);

/// As we analyze each global or thread-local variable, keep track of some
/// information about it.  If we find out that the address of the global is
/// taken, none of this info will be accurate.
struct GlobalStatus { … };

} // end namespace llvm

#endif // LLVM_TRANSFORMS_UTILS_GLOBALSTATUS_H