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diff --git a/contrib/llvm/tools/clang/lib/Tooling/ArgumentsAdjusters.cpp b/contrib/llvm/tools/clang/lib/Tooling/ArgumentsAdjusters.cpp
new file mode 100644
index 0000000..2f3d829
--- /dev/null
+++ b/contrib/llvm/tools/clang/lib/Tooling/ArgumentsAdjusters.cpp
@@ -0,0 +1,86 @@
+//===--- ArgumentsAdjusters.cpp - Command line arguments adjuster ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains definitions of classes which implement ArgumentsAdjuster
+// interface.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Tooling/ArgumentsAdjusters.h"
+
+namespace clang {
+namespace tooling {
+
+/// Add -fsyntax-only option to the commnand line arguments.
+ArgumentsAdjuster getClangSyntaxOnlyAdjuster() {
+  return [](const CommandLineArguments &Args, StringRef /*unused*/) {
+    CommandLineArguments AdjustedArgs;
+    for (size_t i = 0, e = Args.size(); i != e; ++i) {
+      StringRef Arg = Args[i];
+      // FIXME: Remove options that generate output.
+      if (!Arg.startswith("-fcolor-diagnostics") &&
+          !Arg.startswith("-fdiagnostics-color"))
+        AdjustedArgs.push_back(Args[i]);
+    }
+    AdjustedArgs.push_back("-fsyntax-only");
+    return AdjustedArgs;
+  };
+}
+
+ArgumentsAdjuster getClangStripOutputAdjuster() {
+  return [](const CommandLineArguments &Args, StringRef /*unused*/) {
+    CommandLineArguments AdjustedArgs;
+    for (size_t i = 0, e = Args.size(); i < e; ++i) {
+      StringRef Arg = Args[i];
+      if (!Arg.startswith("-o"))
+        AdjustedArgs.push_back(Args[i]);
+
+      if (Arg == "-o") {
+        // Output is specified as -o foo. Skip the next argument also.
+        ++i;
+      }
+      // Else, the output is specified as -ofoo. Just do nothing.
+    }
+    return AdjustedArgs;
+  };
+}
+
+ArgumentsAdjuster getInsertArgumentAdjuster(const CommandLineArguments &Extra,
+                                            ArgumentInsertPosition Pos) {
+  return [Extra, Pos](const CommandLineArguments &Args, StringRef /*unused*/) {
+    CommandLineArguments Return(Args);
+
+    CommandLineArguments::iterator I;
+    if (Pos == ArgumentInsertPosition::END) {
+      I = Return.end();
+    } else {
+      I = Return.begin();
+      ++I; // To leave the program name in place
+    }
+
+    Return.insert(I, Extra.begin(), Extra.end());
+    return Return;
+  };
+}
+
+ArgumentsAdjuster getInsertArgumentAdjuster(const char *Extra,
+                                            ArgumentInsertPosition Pos) {
+  return getInsertArgumentAdjuster(CommandLineArguments(1, Extra), Pos);
+}
+
+ArgumentsAdjuster combineAdjusters(ArgumentsAdjuster First,
+                                   ArgumentsAdjuster Second) {
+  return [First, Second](const CommandLineArguments &Args, StringRef File) {
+    return Second(First(Args, File), File);
+  };
+}
+
+} // end namespace tooling
+} // end namespace clang
+