1 //===-- llvm/Target/Mangler.h - Self-contained name mangler -----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Unified name mangler for various backends.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_TARGET_MANGLER_H
15 #define LLVM_TARGET_MANGLER_H
17 #include "llvm/ADT/DenseMap.h"
24 template <typename T> class SmallVectorImpl;
30 enum ManglerPrefixTy {
31 Default, ///< Emit default string before each symbol.
32 Private, ///< Emit "private" prefix before each symbol.
33 LinkerPrivate ///< Emit "linker private" prefix before each symbol.
38 const TargetMachine *TM;
40 /// AnonGlobalIDs - We need to give global values the same name every time
41 /// they are mangled. This keeps track of the number we give to anonymous
44 DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
46 /// NextAnonGlobalID - This simple counter is used to unique value names.
48 unsigned NextAnonGlobalID;
51 Mangler(MCContext &Context, const TargetMachine *TM)
52 : Context(Context), TM(TM), NextAnonGlobalID(1) {}
54 /// getSymbol - Return the MCSymbol for the specified global value. This
55 /// symbol is the main label that is the address of the global.
56 MCSymbol *getSymbol(const GlobalValue *GV);
58 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
59 /// and the specified global variable's name. If the global variable doesn't
60 /// have a name, this fills in a unique name for the global.
61 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
62 bool isImplicitlyPrivate);
64 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
65 /// and the specified name as the global variable name. GVName must not be
67 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const Twine &GVName,
68 ManglerPrefixTy PrefixTy = Mangler::Default);
71 } // End llvm namespace
73 #endif // LLVM_TARGET_MANGLER_H