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//===-- llvm/Target/Mangler.h - Self-contained name mangler ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Unified name mangler for various backends.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_MANGLER_H
#define LLVM_SUPPORT_MANGLER_H
#include "llvm/ADT/DenseMap.h"
#include <string>
namespace llvm {
class StringRef;
class Twine;
class Value;
class GlobalValue;
template <typename T> class SmallVectorImpl;
class MCAsmInfo;
class Mangler {
public:
enum ManglerPrefixTy {
Default, ///< Emit default string before each symbol.
Private, ///< Emit "private" prefix before each symbol.
LinkerPrivate ///< Emit "linker private" prefix before each symbol.
};
private:
const MCAsmInfo &MAI;
/// AnonGlobalIDs - We need to give global values the same name every time
/// they are mangled. This keeps track of the number we give to anonymous
/// ones.
///
DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
/// NextAnonGlobalID - This simple counter is used to unique value names.
///
unsigned NextAnonGlobalID;
public:
// Mangler ctor - if a prefix is specified, it will be prepended onto all
// symbols.
Mangler(const MCAsmInfo &mai) : MAI(mai), NextAnonGlobalID(1) {}
/// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
/// and the specified global variable's name. If the global variable doesn't
/// have a name, this fills in a unique name for the global.
void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
bool isImplicitlyPrivate);
/// getNameWithPrefix - Fill OutName with the name of the appropriate prefix
/// and the specified name as the global variable name. GVName must not be
/// empty.
void getNameWithPrefix(SmallVectorImpl<char> &OutName, const Twine &GVName,
ManglerPrefixTy PrefixTy = Mangler::Default);
/// getNameWithPrefix - Return the name of the appropriate prefix
/// and the specified global variable's name. If the global variable doesn't
/// have a name, this fills in a unique name for the global.
std::string getNameWithPrefix(const GlobalValue *GV,
bool isImplicitlyPrivate = false);
};
} // End llvm namespace
#endif // LLVM_SUPPORT_MANGLER_H
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