[Linker] Drop support for IR-level extended linking support (archives, etc.).

 - This code is dead, and the "right" way to get this support is to use the
   platform-specific linker-integrated LTO mechanisms, or the forthcoming LLVM
   linker.

llvm-svn: 172749

1 files changed, 0 insertions, 67 deletions

diff --git a/llvm/lib/Linker/Linker.cpp b/llvm/lib/Linker/Linker.cpp
index a30363d0fff..bfd65967a07 100644
--- a/llvm/lib/Linker/Linker.cpp
+++ b/llvm/lib/Linker/Linker.cpp
@@ -112,70 +112,3 @@ Linker::LoadObject(const sys::Path &FN) {
     Error += ": " + ParseErrorMessage;
   return std::auto_ptr<Module>();
 }
-
-// IsLibrary - Determine if "Name" is a library in "Directory". Return
-// a non-empty sys::Path if its found, an empty one otherwise.
-static inline sys::Path IsLibrary(StringRef Name,
-                                  const sys::Path &Directory) {
-
-  sys::Path FullPath(Directory);
-
-  // Try the libX.a form
-  FullPath.appendComponent(("lib" + Name).str());
-  FullPath.appendSuffix("a");
-  if (FullPath.isArchive())
-    return FullPath;
-
-  // Try the libX.bca form
-  FullPath.eraseSuffix();
-  FullPath.appendSuffix("bca");
-  if (FullPath.isArchive())
-    return FullPath;
-
-  // Try the libX.so (or .dylib) form
-  FullPath.eraseSuffix();
-  FullPath.appendSuffix(sys::Path::GetDLLSuffix());
-  if (FullPath.isDynamicLibrary())  // Native shared library?
-    return FullPath;
-  if (FullPath.isBitcodeFile())    // .so file containing bitcode?
-    return FullPath;
-
-  // Try libX form, to make it possible to add dependency on the
-  // specific version of .so, like liblzma.so.1.0.0
-  FullPath.eraseSuffix();
-  if (FullPath.isDynamicLibrary())  // Native shared library?
-    return FullPath;
-  if (FullPath.isBitcodeFile())    // .so file containing bitcode?
-    return FullPath;
-
-  // Not found .. fall through
-
-  // Indicate that the library was not found in the directory.
-  FullPath.clear();
-  return FullPath;
-}
-
-/// FindLib - Try to convert Filename into the name of a file that we can open,
-/// if it does not already name a file we can open, by first trying to open
-/// Filename, then libFilename.[suffix] for each of a set of several common
-/// library suffixes, in each of the directories in LibPaths. Returns an empty
-/// Path if no matching file can be found.
-///
-sys::Path
-Linker::FindLib(StringRef Filename) {
-  // Determine if the pathname can be found as it stands.
-  sys::Path FilePath(Filename);
-  if (FilePath.canRead() &&
-      (FilePath.isArchive() || FilePath.isDynamicLibrary()))
-    return FilePath;
-
-  // Iterate over the directories in Paths to see if we can find the library
-  // there.
-  for (unsigned Index = 0; Index != LibPaths.size(); ++Index) {
-    sys::Path Directory(LibPaths[Index]);
-    sys::Path FullPath = IsLibrary(Filename, Directory);
-    if (!FullPath.isEmpty())
-      return FullPath;
-  }
-  return sys::Path();
-}