[SystemZ] Add -march= command-line option


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186694 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.h b/lib/Driver/Tools.h
index cc229af..1dd4d5e 100644
--- a/lib/Driver/Tools.h
+++ b/lib/Driver/Tools.h
@@ -59,6 +59,8 @@
                            llvm::opt::ArgStringList &CmdArgs) const;
     void AddSparcTargetArgs(const llvm::opt::ArgList &Args,
                             llvm::opt::ArgStringList &CmdArgs) const;
+    void AddSystemZTargetArgs(const llvm::opt::ArgList &Args,
+                              llvm::opt::ArgStringList &CmdArgs) const;
     void AddX86TargetArgs(const llvm::opt::ArgList &Args,
                           llvm::opt::ArgStringList &CmdArgs) const;
     void AddHexagonTargetArgs(const llvm::opt::ArgList &Args,