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_SUPPORT_MANGLER_H
15 #define LLVM_SUPPORT_MANGLER_H
17 #include "llvm/ADT/DenseMap.h"
22 template <typename T> class SmallVectorImpl;
29 enum ManglerPrefixTy {
30 Default, ///< Emit default string before each symbol.
31 Private, ///< Emit "private" prefix before each symbol.
32 LinkerPrivate ///< Emit "linker private" prefix before each symbol.
39 /// AnonGlobalIDs - We need to give global values the same name every time
40 /// they are mangled. This keeps track of the number we give to anonymous
43 DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
45 /// NextAnonGlobalID - This simple counter is used to unique value names.
47 unsigned NextAnonGlobalID;
50 Mangler(MCContext &context, const TargetData &td)
51 : Context(context), TD(td), NextAnonGlobalID(1) {}
53 /// getSymbol - Return the MCSymbol for the specified global value. This
54 /// symbol is the main label that is the address of the global.
55 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_SUPPORT_MANGLER_H