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"
25 template <typename T> class SmallVectorImpl;
32 enum ManglerPrefixTy {
33 Default, ///< Emit default string before each symbol.
34 Private, ///< Emit "private" prefix before each symbol.
35 LinkerPrivate, ///< Emit "linker private" prefix before each symbol.
36 LinkerWeak ///< Emit "linker weak" prefix before each symbol.
43 /// AnonGlobalIDs - We need to give global values the same name every time
44 /// they are mangled. This keeps track of the number we give to anonymous
47 DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
49 /// NextAnonGlobalID - This simple counter is used to unique value names.
51 unsigned NextAnonGlobalID;
54 Mangler(MCContext &context, const TargetData &td)
55 : Context(context), TD(td), NextAnonGlobalID(1) {}
57 /// getSymbol - Return the MCSymbol for the specified global value. This
58 /// symbol is the main label that is the address of the global.
59 MCSymbol *getSymbol(const GlobalValue *GV);
62 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
63 /// and the specified global variable's name. If the global variable doesn't
64 /// have a name, this fills in a unique name for the global.
65 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
66 bool isImplicitlyPrivate);
68 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
69 /// and the specified name as the global variable name. GVName must not be
71 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const Twine &GVName,
72 ManglerPrefixTy PrefixTy = Mangler::Default);
74 /// getNameWithPrefix - Return the name of the appropriate prefix
75 /// and the specified global variable's name. If the global variable doesn't
76 /// have a name, this fills in a unique name for the global.
77 std::string getNameWithPrefix(const GlobalValue *GV,
78 bool isImplicitlyPrivate = false);
81 } // End llvm namespace
83 #endif // LLVM_SUPPORT_MANGLER_H