diff --git a/llvm/unittests/TextAPI/TextStubHelpers.h b/llvm/unittests/TextAPI/TextStubHelpers.h
new file mode 100644
index 0000000..c33a45e
--- /dev/null
+++ b/llvm/unittests/TextAPI/TextStubHelpers.h
@@ -0,0 +1,41 @@
+//===-- TextStubHelpers.cpp -------------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===-----------------------------------------------------------------------===/
+
+#include "llvm/TextAPI/MachO/InterfaceFile.h"
+#include <algorithm>
+#include <string>
+
+#ifndef TEXT_STUB_HELPERS_H
+#define TEXT_STUB_HELPERS_H
+
+namespace llvm {
+struct ExportedSymbol {
+  llvm::MachO::SymbolKind Kind;
+  std::string Name;
+  bool WeakDefined;
+  bool ThreadLocalValue;
+};
+
+using ExportedSymbolSeq = std::vector<ExportedSymbol>;
+using UUIDs = std::vector<std::pair<llvm::MachO::Target, std::string>>;
+
+inline bool operator<(const ExportedSymbol &LHS, const ExportedSymbol &RHS) {
+  return std::tie(LHS.Kind, LHS.Name) < std::tie(RHS.Kind, RHS.Name);
+}
+
+inline bool operator==(const ExportedSymbol &LHS, const ExportedSymbol &RHS) {
+  return std::tie(LHS.Kind, LHS.Name, LHS.WeakDefined, LHS.ThreadLocalValue) ==
+         std::tie(RHS.Kind, RHS.Name, RHS.WeakDefined, RHS.ThreadLocalValue);
+}
+
+inline std::string stripWhitespace(std::string S) {
+  S.erase(std::remove_if(S.begin(), S.end(), ::isspace), S.end());
+  return S;
+}
+} // namespace llvm
+#endif