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//===-- llvm/IR/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_IR_MANGLER_H
#define LLVM_IR_MANGLER_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
class DataLayout;
template <typename T> class SmallVectorImpl;
class Twine;
class Mangler {
/// 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.
mutable DenseMap<const GlobalValue*, unsigned> AnonGlobalIDs;
/// This simple counter is used to unique value names.
mutable unsigned NextAnonGlobalID;
public:
Mangler() : NextAnonGlobalID(1) {}
/// Print 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(raw_ostream &OS, const GlobalValue *GV,
bool CannotUsePrivateLabel) const;
void getNameWithPrefix(SmallVectorImpl<char> &OutName, const GlobalValue *GV,
bool CannotUsePrivateLabel) const;
/// Print the appropriate prefix and the specified name as the global variable
/// name. GVName must not be empty.
static void getNameWithPrefix(raw_ostream &OS, const Twine &GVName,
const DataLayout &DL);
static void getNameWithPrefix(SmallVectorImpl<char> &OutName,
const Twine &GVName, const DataLayout &DL);
};
} // End llvm namespace
#endif
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