1 //===-- llvm/IR/Mangler.h - Self-contained name mangler ---------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // Unified name mangler for various backends. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_IR_MANGLER_H 15 #define LLVM_IR_MANGLER_H 16 17 #include "llvm/ADT/DenseMap.h" 18 #include "llvm/IR/GlobalValue.h" 19 20 namespace llvm { 21 22 class DataLayout; 23 template <typename T> class SmallVectorImpl; 24 class Triple; 25 class Twine; 26 class raw_ostream; 27 28 class Mangler { 29 /// We need to give global values the same name every time they are mangled. 30 /// This keeps track of the number we give to anonymous ones. 31 mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs; 32 33 public: 34 /// Print the appropriate prefix and the specified global variable's name. 35 /// If the global variable doesn't have a name, this fills in a unique name 36 /// for the global. 37 void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV, 38 bool CannotUsePrivateLabel) const; 39 void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV, 40 bool CannotUsePrivateLabel) const; 41 42 /// Print the appropriate prefix and the specified name as the global variable 43 /// name. GVName must not be empty. 44 static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName, 45 const DataLayout &DL); 46 static void getNameWithPrefix(SmallVectorImpl<char> &OutName, 47 const Twine &GVName, const DataLayout &DL); 48 }; 49 50 void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV, 51 const Triple &TT, Mangler &Mangler); 52 53 } // End llvm namespace 54 55 #endif 56
