1 //===-- llvm/IR/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_IR_MANGLER_H
15 #define LLVM_IR_MANGLER_H
17 #include "llvm/ADT/DenseMap.h"
18 #include "llvm/IR/GlobalValue.h"
19 #include "llvm/Support/raw_ostream.h"
24 template <typename T> class SmallVectorImpl;
28 /// We need to give global values the same name every time they are mangled.
29 /// This keeps track of the number we give to anonymous ones.
30 mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
32 /// This simple counter is used to unique value names.
33 mutable unsigned NextAnonGlobalID;
36 Mangler() : NextAnonGlobalID(1) {}
38 /// Print the appropriate prefix and the specified global variable's name.
39 /// If the global variable doesn't have a name, this fills in a unique name
41 void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV,
42 bool CannotUsePrivateLabel) const;
43 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
44 bool CannotUsePrivateLabel) const;
46 /// Print the appropriate prefix and the specified name as the global variable
47 /// name. GVName must not be empty.
48 static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName,
49 const DataLayout &DL);
50 static void getNameWithPrefix(SmallVectorImpl<char> &OutName,
51 const Twine &GVName, const DataLayout &DL);
54 } // End llvm namespace