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
20namespace llvm {
21
22class DataLayout;
23template <typename T> class SmallVectorImpl;
24class Triple;
25class Twine;
26class raw_ostream;
27
28class 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
33public:
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
50void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV,
51 const Triple &TT, Mangler &Mangler);
52
53void emitLinkerFlagsForUsedCOFF(raw_ostream &OS, const GlobalValue *GV,
54 const Triple &T, Mangler &M);
55
56} // End llvm namespace
57
58#endif
59