Index: head/contrib/llvm/tools/clang/lib/Driver/Tools.cpp
===================================================================
--- head/contrib/llvm/tools/clang/lib/Driver/Tools.cpp
+++ head/contrib/llvm/tools/clang/lib/Driver/Tools.cpp
@@ -6587,6 +6587,17 @@
     CmdArgs.push_back("elf32ppc_fbsd");
   }
 
+  if (Arg *A = Args.getLastArg(options::OPT_G)) {
+    if (ToolChain.getArch() == llvm::Triple::mips ||
+      ToolChain.getArch() == llvm::Triple::mipsel ||
+      ToolChain.getArch() == llvm::Triple::mips64 ||
+      ToolChain.getArch() == llvm::Triple::mips64el) {
+      StringRef v = A->getValue();
+      CmdArgs.push_back(Args.MakeArgString("-G" + v));
+      A->claim();
+    }
+  }
+
   if (Output.isFilename()) {
     CmdArgs.push_back("-o");
     CmdArgs.push_back(Output.getFilename());