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diff --git a/llvm/include/llvm/Transforms/IPO/GlobalSplit.h b/llvm/include/llvm/Transforms/IPO/GlobalSplit.h
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+++ b/llvm/include/llvm/Transforms/IPO/GlobalSplit.h
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+//===- GlobalSplit.h - global variable splitter -----------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This pass uses inrange annotations on GEP indices to split globals where
+// beneficial. Clang currently attaches these annotations to references to
+// virtual table globals under the Itanium ABI for the benefit of the
+// whole-program virtual call optimization and control flow integrity passes.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H
+#define LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H
+
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+/// Pass to perform split of global variables.
+class GlobalSplitPass : public PassInfoMixin<GlobalSplitPass> {
+public:
+  PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
+};
+}
+#endif // LLVM_TRANSFORMS_IPO_GLOBALSPLIT_H