Rafael Espindola c35c39b73c Remove the PreserveSource linker mode.
I noticed that it was untested, and forcing it on caused some tests to fail:

    LLVM :: Linker/metadata-a.ll
    LLVM :: Linker/prefixdata.ll
    LLVM :: Linker/type-unique-odr-a.ll
    LLVM :: Linker/type-unique-simple-a.ll
    LLVM :: Linker/type-unique-simple2-a.ll
    LLVM :: Linker/type-unique-simple2.ll
    LLVM :: Linker/type-unique-type-array-a.ll
    LLVM :: Linker/unnamed-addr1-a.ll
    LLVM :: Linker/visibility1.ll

If it is to be resurrected, it has to be fixed and we should probably have a
-preserve-source command line option in llvm-mc and run tests with and without
it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220741 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-28 00:24:16 +00:00

56 lines
1.6 KiB
C++

//===- Linker.h - Module Linker Interface -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LINKER_LINKER_H
#define LLVM_LINKER_LINKER_H
#include "llvm/ADT/SmallPtrSet.h"
#include <functional>
namespace llvm {
class DiagnosticInfo;
class Module;
class StructType;
/// This class provides the core functionality of linking in LLVM. It keeps a
/// pointer to the merged module so far. It doesn't take ownership of the
/// module since it is assumed that the user of this class will want to do
/// something with it after the linking.
class Linker {
public:
typedef std::function<void(const DiagnosticInfo &)>
DiagnosticHandlerFunction;
Linker(Module *M, DiagnosticHandlerFunction DiagnosticHandler);
Linker(Module *M);
~Linker();
Module *getModule() const { return Composite; }
void deleteModule();
/// \brief Link \p Src into the composite. The source is destroyed.
/// Returns true on error.
bool linkInModule(Module *Src);
static bool LinkModules(Module *Dest, Module *Src,
DiagnosticHandlerFunction DiagnosticHandler);
static bool LinkModules(Module *Dest, Module *Src);
private:
Module *Composite;
SmallPtrSet<StructType*, 32> IdentifiedStructTypes;
DiagnosticHandlerFunction DiagnosticHandler;
};
} // End llvm namespace
#endif