Driver: Add AMDGPU toolchain

Summary:
This is a minimal toolchain, which sets the integrated assembler as default,
and uses lld for linking.

Reviewers: arsenm, mcrosier

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D10700

llvm-svn: 242601

1 files changed, 20 insertions, 0 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 40643ccb67e..6dc25b5a1f9 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -5777,6 +5777,26 @@ void hexagon::Linker::ConstructJob(Compilation &C, const JobAction &JA,
 }
 // Hexagon tools end.
 
+void amdgpu::Linker::ConstructJob(Compilation &C, const JobAction &JA,
+                                  const InputInfo &Output,
+                                  const InputInfoList &Inputs,
+                                  const ArgList &Args,
+                                  const char *LinkingOutput) const {
+
+  std::string Linker = getToolChain().GetProgramPath(getShortName());
+  ArgStringList CmdArgs;
+  CmdArgs.push_back("-flavor");
+  CmdArgs.push_back("gnu");
+  CmdArgs.push_back("-target");
+  CmdArgs.push_back(getToolChain().getTripleString().c_str());
+  AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
+  CmdArgs.push_back("-o");
+  CmdArgs.push_back(Output.getFilename());
+  C.addCommand(llvm::make_unique<Command>(JA, *this, Args.MakeArgString(Linker),
+                                          CmdArgs, Inputs));
+}
+// AMDGPU tools end.
+
 const std::string arm::getARMArch(const ArgList &Args,
                                   const llvm::Triple &Triple) {
   std::string MArch;