[Mips] Support -mmicromips / -mno-micromips command line options.

llvm-svn: 179489
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index e0fc74e..586a7ed 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -991,6 +991,9 @@
                    options::OPT_mips16, options::OPT_mno_mips16,
                    "mips16");
   AddTargetFeature(Args, CmdArgs,
+                   options::OPT_mmicromips, options::OPT_mno_micromips,
+                   "micromips");
+  AddTargetFeature(Args, CmdArgs,
                    options::OPT_mdsp, options::OPT_mno_dsp,
                    "dsp");
   AddTargetFeature(Args, CmdArgs,