Index: test/tools/llvm-ar/help-message.test
===================================================================
--- /dev/null
+++ test/tools/llvm-ar/help-message.test
@@ -0,0 +1,5 @@
+# RUN: llvm-ar -h | FileCheck %s
+# RUN: llvm-ar --help | FileCheck %s
+# RUN: llvm-ar h | FileCheck %s
+
+# CHECK: USAGE: llvm-ar
Index: tools/llvm-ar/llvm-ar.cpp
===================================================================
--- tools/llvm-ar/llvm-ar.cpp
+++ tools/llvm-ar/llvm-ar.cpp
@@ -283,6 +283,10 @@
 
   for (unsigned i = 0; i < Options.size(); ++i) {
     switch (Options[i]) {
+    case 'h':
+      printHelpMessage();
+      exit(0);
+      break;
     case 'd':
       ++NumOperations;
       Operation = Delete;