diff --git a/llvm/test/CMakeLists.txt b/llvm/test/CMakeLists.txt
--- a/llvm/test/CMakeLists.txt
+++ b/llvm/test/CMakeLists.txt
@@ -82,6 +82,7 @@
           llvm-install-name-tool
           llvm-jitlink
           llvm-lib
+          llvm-libtool-darwin
           llvm-link
           llvm-lipo
           llvm-locstats
diff --git a/llvm/test/tools/llvm-libtool-darwin/help-message.test b/llvm/test/tools/llvm-libtool-darwin/help-message.test
new file mode 100644
--- /dev/null
+++ b/llvm/test/tools/llvm-libtool-darwin/help-message.test
@@ -0,0 +1,10 @@
+## This test checks that the help message is displayed correctly.
+
+# RUN: llvm-libtool-darwin -h | FileCheck --check-prefix=LIBTOOL-USAGE %s --match-full-lines
+# RUN: llvm-libtool-darwin --help | FileCheck --check-prefix=LIBTOOL-USAGE %s --match-full-lines
+# RUN: not llvm-libtool-darwin -abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
+# RUN: not llvm-libtool-darwin --abcabc 2>&1 | FileCheck --check-prefix=UNKNOWN-ARG %s
+
+# LIBTOOL-USAGE: USAGE: llvm-libtool-darwin [options] <input files>
+
+# UNKNOWN-ARG: Unknown command line argument '{{-+}}abcabc'
diff --git a/llvm/tools/llvm-libtool-darwin/CMakeLists.txt b/llvm/tools/llvm-libtool-darwin/CMakeLists.txt
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/CMakeLists.txt
@@ -0,0 +1,9 @@
+set(LLVM_LINK_COMPONENTS
+  Object
+  Option
+  Support
+  )
+
+add_llvm_tool(llvm-libtool-darwin
+  llvm-libtool-darwin.cpp
+)
diff --git a/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt b/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/LLVMBuild.txt
@@ -0,0 +1,20 @@
+;===- ./tools/llvm-libtool-darwin/LVMBuild.txt --------------------------*- Conf -*--===;
+;
+; 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
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+[component_0]
+type = Tool
+name = llvm-libtool-darwin
+parent = Tools
+required_libraries = Object Option Support
diff --git a/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp b/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp
new file mode 100644
--- /dev/null
+++ b/llvm/tools/llvm-libtool-darwin/llvm-libtool-darwin.cpp
@@ -0,0 +1,48 @@
+//===-- llvm-libtool-darwin.cpp - a tool for creating libraries --------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// A utility for creating static and dynamic libraries for Darwin.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/ArchiveWriter.h"
+#include "llvm/Object/Binary.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/MachOUniversal.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Option/Arg.h"
+#include "llvm/Option/ArgList.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Error.h"
+#include "llvm/Support/InitLLVM.h"
+#include "llvm/Support/WithColor.h"
+
+using namespace llvm;
+using namespace llvm::object;
+
+// The name this program was invoked as.
+static StringRef ToolName;
+
+static cl::opt<std::string> OutputFile("output",
+                                       cl::desc("Specify output filename"),
+                                       cl::value_desc("filename"),
+                                       cl::OneOrMore);
+static cl::alias OutputFileShort("o", cl::desc("Alias for -output"),
+                                 cl::aliasopt(OutputFile));
+
+static cl::list<std::string>
+    InputFiles(cl::Positional, cl::desc("<input files>"), cl::OneOrMore);
+
+int main(int Argc, char **Argv) {
+  InitLLVM X(Argc, Argv);
+  ToolName = Argv[0];
+  cl::ParseCommandLineOptions(Argc, Argv, "llvm-libtool\n");
+
+  return EXIT_SUCCESS;
+}