diff --git a/include/llvm/Support/Visibility.h b/include/llvm/Support/Visibility.h
new file mode 100644
index 00000000000..eb0c649a55f
--- /dev/null
+++ b/include/llvm/Support/Visibility.h
@@ -0,0 +1,23 @@
+//===-- llvm/Support/Visibility.h - visibility(hidden) support --*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Chris Lattner and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the VISIBILITY_HIDDEN macro, used for marking classes with
+// the GCC-specific visibility("hidden") attribute.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef VISIBILITY_HIDDEN
+
+#if __GNUC__ >= 4
+#define VISIBILITY_HIDDEN __attribute__ ((visibility("hidden")))
+#else
+#define VISIBILITY_HIDDEN
+#endif
+
+#endif