LLVM  6.0.0svn
Mangler.h
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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 
51  const Triple &TT, Mangler &Mangler);
52 
53 } // End llvm namespace
54 
55 #endif
A parsed version of the target data layout string in and methods for querying it. ...
Definition: DataLayout.h:109
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:81
void emitLinkerFlagsForGlobalCOFF(raw_ostream &OS, const GlobalValue *GV, const Triple &TT, Mangler &Mangler)
Definition: Mangler.cpp:177
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:44
void getNameWithPrefix(raw_ostream &OS, const GlobalValue *GV, bool CannotUsePrivateLabel) const
Print the appropriate prefix and the specified global variable&#39;s name.
Definition: Mangler.cpp:109