diff --git a/clang/include/clang/Basic/DiagnosticCategories.td b/clang/include/clang/Basic/DiagnosticCategories.td
new file mode 100644
index 000000000000..a02fbdf93fc3
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+++ b/clang/include/clang/Basic/DiagnosticCategories.td
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+//==--- DiagnosticCategories.td - Diagnostic Category Definitions ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+class CatInlineAsm : DiagCategory<"Inline Assembly Issue">;