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diff --git a/gcc/go/gofrontend/go-encode-id.h b/gcc/go/gofrontend/go-encode-id.h
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+++ b/gcc/go/gofrontend/go-encode-id.h
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+// go-encode-id.h -- Go identifier encoding utilities  -*- C++ -*-
+
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#ifndef GO_ENCODE_ID_H
+#define GO_ENCODE_ID_H
+
+#include "backend.h"
+
+// Given an identifier corresponding to a function or variable,
+// this helper returns TRUE if the identifier needs special
+// encoding to be used as an ASM name (symbol), FALSE if the name
+// is OK as is.
+extern bool
+go_id_needs_encoding(const std::string& str);
+
+// Encodes the specified identifier for ASM name safety, returning a
+// string with the encoded value.
+extern std::string
+go_encode_id(const std::string &id);
+
+// Returns the empty string if the specified name needs encoding,
+// otherwise invokes go_encode_id() on the name and returns the
+// result.
+extern std::string
+go_selectively_encode_id(const std::string &id);
+
+#endif // !defined(GO_ENCODE_ID_H)