diff --git a/unittests/Driver/CMakeLists.txt b/unittests/Driver/CMakeLists.txt
index 8cc963b33a21baecd61b3327b8a913ba7b231aef..106f070bbfc8006e429f849c7b69b101fa639f76 100644
--- a/unittests/Driver/CMakeLists.txt
+++ b/unittests/Driver/CMakeLists.txt
@@ -4,6 +4,7 @@ set(LLVM_LINK_COMPONENTS
 
 add_clang_unittest(ClangDriverTests
   MultilibTest.cpp
+  UtilsTest.cpp
   )
 
 target_link_libraries(ClangDriverTests
diff --git a/unittests/Driver/UtilsTest.cpp b/unittests/Driver/UtilsTest.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..308e8d891099530806837537ca5a0b2564098e99
--- /dev/null
+++ b/unittests/Driver/UtilsTest.cpp
@@ -0,0 +1,31 @@
+//===- unittests/Driver/UtilsTest.cpp --- Utils tests ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Unit tests for Driver/Util API.
+//
+//===----------------------------------------------------------------------===//
+
+#include "clang/Driver/Util.h"
+#include "clang/Basic/LLVM.h"
+#include "llvm/ADT/Triple.h"
+#include "gtest/gtest.h"
+
+using namespace clang::driver;
+using namespace clang;
+
+TEST(UtilsTest, getARMCPUForMArch) {
+  {
+    llvm::Triple Triple("armv7s-apple-ios7");
+    EXPECT_STREQ("swift", getARMCPUForMArch(Triple.getArchName(), Triple));
+  }
+  {
+    llvm::Triple Triple("armv7-apple-ios7");
+    EXPECT_STREQ("cortex-a8", getARMCPUForMArch(Triple.getArchName(), Triple));
+  }
+}