Revert r211866, r211895 and r211995, "Driver: use GNU::Link for the Generic_GCC toolchain". It broke users of Generic_GCC, cygwin and mingw32.

It reverts commits as follows:
  r211866: "Driver: use GNU::Link for the Generic_GCC toolchain"
  r211895: "Replace GetProgramPath("ld") with GetLinkerPath()."
  r211995: "Driver: add a cygwin linker tool"

llvm-svn: 211998

1 files changed, 1 insertions, 12 deletions

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index 4efc9a10782..d02c84d315b 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -2102,7 +2102,7 @@ Tool *Generic_GCC::buildAssembler() const {
 }
 
 Tool *Generic_GCC::buildLinker() const {
-  return new tools::gnutools::Link(*this);
+  return new tools::gcc::Link(*this);
 }
 
 void Generic_GCC::printVerboseInfo(raw_ostream &OS) const {
@@ -3476,17 +3476,6 @@ Tool *DragonFly::buildLinker() const {
   return new tools::dragonfly::Link(*this);
 }
 
-/// Cygwin toolchain
-Cygwin::Cygwin(const Driver &D, const llvm::Triple &Triple,
-               const llvm::opt::ArgList &Args)
-    : Generic_GCC(D, Triple, Args) {
-  ToolChain::path_list &LibPaths = getFilePaths();
-  LibPaths.push_back("/usr/lib");
-}
-
-Tool *Cygwin::buildLinker() const {
-  return new tools::cygwin::Link(*this);
-}
 
 /// XCore tool chain
 XCore::XCore(const Driver &D, const llvm::Triple &Triple,