--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lld/ELF/ICF.h	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,20 @@
+//===- ICF.h --------------------------------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLD_ELF_ICF_H
+#define LLD_ELF_ICF_H
+
+namespace lld {
+namespace elf {
+
+template <class ELFT> void doIcf();
+
+} // namespace elf
+} // namespace lld
+
+#endif