1 //===-- llvm/Support/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"
26 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.
37 /// Prefix - This string is added to each symbol that is emitted, unless the
38 /// symbol is marked as not needing this prefix.
41 /// PrivatePrefix - This string is emitted before each symbol with private
43 const char *PrivatePrefix;
45 /// LinkerPrivatePrefix - This string is emitted before each symbol with
46 /// "linker_private" linkage.
47 const char *LinkerPrivatePrefix;
49 /// AnonGlobalIDs - We need to give global values the same name every time
50 /// they are mangled. This keeps track of the number we give to anonymous
53 DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
55 /// NextAnonGlobalID - This simple counter is used to unique value names.
57 unsigned NextAnonGlobalID;
60 // Mangler ctor - if a prefix is specified, it will be prepended onto all
62 Mangler(Module &M, const char *Prefix = "", const char *privatePrefix = "",
63 const char *linkerPrivatePrefix = "");
65 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
66 /// and the specified global variable's name. If the global variable doesn't
67 /// have a name, this fills in a unique name for the global.
68 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
69 bool isImplicitlyPrivate);
71 /// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
72 /// and the specified name as the global variable name. GVName must not be
74 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const Twine &GVName,
75 ManglerPrefixTy PrefixTy = Mangler::Default);
77 /// getNameWithPrefix - Return the name of the appropriate prefix
78 /// and the specified global variable's name. If the global variable doesn't
79 /// have a name, this fills in a unique name for the global.
80 std::string getNameWithPrefix(const GlobalValue *GV,
81 bool isImplicitlyPrivate = false);
84 } // End llvm namespace
86 #endif // LLVM_SUPPORT_MANGLER_H