reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    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
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
//===-- llvm/IR/Mangler.h - Self-contained name mangler ---------*- 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
//
//===----------------------------------------------------------------------===//
//
// Unified name mangler for various backends.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_MANGLER_H
#define LLVM_IR_MANGLER_H

#include "llvm/ADT/DenseMap.h"
#include "llvm/IR/GlobalValue.h"

namespace llvm {

class DataLayout;
template <typename T> class SmallVectorImpl;
class Triple;
class Twine;
class raw_ostream;

class Mangler {
  /// We need to give global values the same name every time they are mangled.
  /// This keeps track of the number we give to anonymous ones.
  mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;

public:
  /// Print the appropriate prefix and the specified global variable's name.
  /// If the global variable doesn't have a name, this fills in a unique name
  /// for the global.
  void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV,
                         bool CannotUsePrivateLabel) const;
  void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
                         bool CannotUsePrivateLabel) const;

  /// Print the appropriate prefix and the specified name as the global variable
  /// name. GVName must not be empty.
  static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName,
                                const DataLayout &DL);
  static void getNameWithPrefix(SmallVectorImpl<char> &OutName,
                                const Twine &GVName, const DataLayout &DL);
};

void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV,
                                  const Triple &TT, Mangler &Mangler);

void emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV,
                                const Triple &T, Mangler &M);

} // End llvm namespace

#endif