diff --git a/lld/MachO/Driver.cpp b/lld/MachO/Driver.cpp
index a693cf6c8033b0..3b1daadf9f0a38 100644
--- a/lld/MachO/Driver.cpp
+++ b/lld/MachO/Driver.cpp
@@ -8,7 +8,6 @@
 
 #include "Driver.h"
 #include "Config.h"
-#include "DriverUtils.h"
 #include "InputFiles.h"
 #include "LTO.h"
 #include "ObjC.h"
@@ -34,7 +33,6 @@
 #include "llvm/LTO/LTO.h"
 #include "llvm/Object/Archive.h"
 #include "llvm/Option/ArgList.h"
-#include "llvm/Option/Option.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Host.h"
 #include "llvm/Support/MemoryBuffer.h"
@@ -53,68 +51,6 @@ using namespace lld::macho;
 
 Configuration *lld::macho::config;
 
-// Create prefix string literals used in Options.td
-#define PREFIX(NAME, VALUE) const char *NAME[] = VALUE;
-#include "Options.inc"
-#undef PREFIX
-
-// Create table mapping all options defined in Options.td
-static const opt::OptTable::Info optInfo[] = {
-#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12)      \
-  {X1, X2, X10,         X11,         OPT_##ID, opt::Option::KIND##Class,       \
-   X9, X8, OPT_##GROUP, OPT_##ALIAS, X7,       X12},
-#include "Options.inc"
-#undef OPTION
-};
-
-MachOOptTable::MachOOptTable() : OptTable(optInfo) {}
-
-// Set color diagnostics according to --color-diagnostics={auto,always,never}
-// or --no-color-diagnostics flags.
-static void handleColorDiagnostics(opt::InputArgList &args) {
-  auto *arg = args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
-                              OPT_no_color_diagnostics);
-  if (!arg)
-    return;
-  if (arg->getOption().getID() == OPT_color_diagnostics) {
-    lld::errs().enable_colors(true);
-  } else if (arg->getOption().getID() == OPT_no_color_diagnostics) {
-    lld::errs().enable_colors(false);
-  } else {
-    StringRef s = arg->getValue();
-    if (s == "always")
-      lld::errs().enable_colors(true);
-    else if (s == "never")
-      lld::errs().enable_colors(false);
-    else if (s != "auto")
-      error("unknown option: --color-diagnostics=" + s);
-  }
-}
-
-opt::InputArgList MachOOptTable::parse(ArrayRef<const char *> argv) {
-  // Make InputArgList from string vectors.
-  unsigned missingIndex;
-  unsigned missingCount;
-  SmallVector<const char *, 256> vec(argv.data(), argv.data() + argv.size());
-
-  opt::InputArgList args = ParseArgs(vec, missingIndex, missingCount);
-
-  if (missingCount)
-    error(Twine(args.getArgString(missingIndex)) + ": missing argument");
-
-  handleColorDiagnostics(args);
-
-  for (opt::Arg *arg : args.filtered(OPT_UNKNOWN))
-    error("unknown argument: " + arg->getSpelling());
-  return args;
-}
-
-void MachOOptTable::printHelp(const char *argv0, bool showHidden) const {
-  PrintHelp(lld::outs(), (std::string(argv0) + " [options] file...").c_str(),
-            "LLVM Linker", showHidden);
-  lld::outs() << "\n";
-}
-
 static HeaderFileType getOutputType(const opt::InputArgList &args) {
   // TODO: -r, -dylinker, -preload...
   opt::Arg *outputArg = args.getLastArg(OPT_bundle, OPT_dylib, OPT_execute);
diff --git a/lld/MachO/Driver.h b/lld/MachO/Driver.h
index 2233740d1db833..9db628c86de2a0 100644
--- a/lld/MachO/Driver.h
+++ b/lld/MachO/Driver.h
@@ -10,11 +10,16 @@
 #define LLD_MACHO_DRIVER_H
 
 #include "lld/Common/LLVM.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/StringRef.h"
 #include "llvm/Option/OptTable.h"
+#include "llvm/Support/MemoryBuffer.h"
 
 namespace lld {
 namespace macho {
 
+class DylibFile;
+
 class MachOOptTable : public llvm::opt::OptTable {
 public:
   MachOOptTable();
@@ -30,6 +35,12 @@ enum {
 #undef OPTION
 };
 
+// Check for both libfoo.dylib and libfoo.tbd (in that order).
+llvm::Optional<std::string> resolveDylibPath(llvm::StringRef path);
+
+llvm::Optional<DylibFile *> makeDylibFromTAPI(llvm::MemoryBufferRef mbref,
+                                              DylibFile *umbrella = nullptr);
+
 } // namespace macho
 } // namespace lld
 
diff --git a/lld/MachO/DriverUtils.cpp b/lld/MachO/DriverUtils.cpp
index fa0b62e11c4935..3899348666b4c1 100644
--- a/lld/MachO/DriverUtils.cpp
+++ b/lld/MachO/DriverUtils.cpp
@@ -6,20 +6,86 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "DriverUtils.h"
+#include "Driver.h"
 #include "InputFiles.h"
 
 #include "lld/Common/ErrorHandler.h"
 #include "lld/Common/Memory.h"
+#include "llvm/Option/Arg.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/Option/Option.h"
 #include "llvm/Support/Path.h"
 #include "llvm/TextAPI/MachO/TextAPIReader.h"
 
 using namespace llvm;
 using namespace llvm::MachO;
+using namespace llvm::opt;
 using namespace llvm::sys;
 using namespace lld;
 using namespace lld::macho;
 
+// Create prefix string literals used in Options.td
+#define PREFIX(NAME, VALUE) const char *NAME[] = VALUE;
+#include "Options.inc"
+#undef PREFIX
+
+// Create table mapping all options defined in Options.td
+static const opt::OptTable::Info optInfo[] = {
+#define OPTION(X1, X2, ID, KIND, GROUP, ALIAS, X7, X8, X9, X10, X11, X12)      \
+  {X1, X2, X10,         X11,         OPT_##ID, opt::Option::KIND##Class,       \
+   X9, X8, OPT_##GROUP, OPT_##ALIAS, X7,       X12},
+#include "Options.inc"
+#undef OPTION
+};
+
+MachOOptTable::MachOOptTable() : OptTable(optInfo) {}
+
+// Set color diagnostics according to --color-diagnostics={auto,always,never}
+// or --no-color-diagnostics flags.
+static void handleColorDiagnostics(opt::InputArgList &args) {
+  auto *arg = args.getLastArg(OPT_color_diagnostics, OPT_color_diagnostics_eq,
+                              OPT_no_color_diagnostics);
+  if (!arg)
+    return;
+  if (arg->getOption().getID() == OPT_color_diagnostics) {
+    lld::errs().enable_colors(true);
+  } else if (arg->getOption().getID() == OPT_no_color_diagnostics) {
+    lld::errs().enable_colors(false);
+  } else {
+    StringRef s = arg->getValue();
+    if (s == "always")
+      lld::errs().enable_colors(true);
+    else if (s == "never")
+      lld::errs().enable_colors(false);
+    else if (s != "auto")
+      error("unknown option: --color-diagnostics=" + s);
+  }
+}
+
+opt::InputArgList MachOOptTable::parse(ArrayRef<const char *> argv) {
+  // Make InputArgList from string vectors.
+  unsigned missingIndex;
+  unsigned missingCount;
+  SmallVector<const char *, 256> vec(argv.data(), argv.data() + argv.size());
+
+  opt::InputArgList args = ParseArgs(vec, missingIndex, missingCount);
+
+  if (missingCount)
+    error(Twine(args.getArgString(missingIndex)) + ": missing argument");
+
+  handleColorDiagnostics(args);
+
+  for (opt::Arg *arg : args.filtered(OPT_UNKNOWN))
+    error("unknown argument: " + arg->getSpelling());
+  return args;
+}
+
+void MachOOptTable::printHelp(const char *argv0, bool showHidden) const {
+  PrintHelp(lld::outs(), (std::string(argv0) + " [options] file...").c_str(),
+            "LLVM Linker", showHidden);
+  lld::outs() << "\n";
+}
+
 Optional<std::string> macho::resolveDylibPath(StringRef path) {
   // TODO: if a tbd and dylib are both present, we should check to make sure
   // they are consistent.
diff --git a/lld/MachO/DriverUtils.h b/lld/MachO/DriverUtils.h
deleted file mode 100644
index d3d3670ab24643..00000000000000
--- a/lld/MachO/DriverUtils.h
+++ /dev/null
@@ -1,31 +0,0 @@
-//===- DriverUtils.h --------------------------------------------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLD_MACHO_DRIVER_UTILS_H
-#define LLD_MACHO_DRIVER_UTILS_H
-
-#include "llvm/ADT/Optional.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MemoryBuffer.h"
-
-namespace lld {
-namespace macho {
-
-class DylibFile;
-
-// Check for both libfoo.dylib and libfoo.tbd (in that order).
-llvm::Optional<std::string> resolveDylibPath(llvm::StringRef path);
-
-llvm::Optional<DylibFile *> makeDylibFromTAPI(llvm::MemoryBufferRef mbref,
-                                              DylibFile *umbrella = nullptr);
-
-} // namespace macho
-} // namespace lld
-
-#endif
diff --git a/lld/MachO/InputFiles.cpp b/lld/MachO/InputFiles.cpp
index cd6fbc316fe19d..c733878ec1fe8f 100644
--- a/lld/MachO/InputFiles.cpp
+++ b/lld/MachO/InputFiles.cpp
@@ -43,7 +43,7 @@
 
 #include "InputFiles.h"
 #include "Config.h"
-#include "DriverUtils.h"
+#include "Driver.h"
 #include "ExportTrie.h"
 #include "InputSection.h"
 #include "MachOStructs.h"