/usr/include/llvm-6.0/llvm/IR/DerivedUser.h is in llvm-6.0-dev 1:6.0-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | //===- DerivedUser.h - Base for non-IR Users --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_DERIVEDUSER_H
#define LLVM_IR_DERIVEDUSER_H
#include "llvm/IR/User.h"
namespace llvm {
class Type;
class Use;
/// Extension point for the Value hierarchy. All classes outside of lib/IR
/// that wish to inherit from User should instead inherit from DerivedUser
/// instead. Inheriting from this class is discouraged.
///
/// Generally speaking, Value is the base of a closed class hierarchy
/// that can't be extended by code outside of lib/IR. This class creates a
/// loophole that allows classes outside of lib/IR to extend User to leverage
/// its use/def list machinery.
class DerivedUser : public User {
protected:
using DeleteValueTy = void (*)(DerivedUser *);
private:
friend class Value;
DeleteValueTy DeleteValue;
public:
DerivedUser(Type *Ty, unsigned VK, Use *U, unsigned NumOps,
DeleteValueTy DeleteValue)
: User(Ty, VK, U, NumOps), DeleteValue(DeleteValue) {}
};
} // end namespace llvm
#endif // LLVM_IR_DERIVEDUSER_H
|