Import prebuilt clang toolchain for linux.
diff --git a/linux-x64/clang/include/llvm/Support/StringSaver.h b/linux-x64/clang/include/llvm/Support/StringSaver.h
new file mode 100644
index 0000000..e85b289
--- /dev/null
+++ b/linux-x64/clang/include/llvm/Support/StringSaver.h
@@ -0,0 +1,32 @@
+//===- llvm/Support/StringSaver.h -------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_STRINGSAVER_H
+#define LLVM_SUPPORT_STRINGSAVER_H
+
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Allocator.h"
+
+namespace llvm {
+
+/// \brief Saves strings in the inheritor's stable storage and returns a
+/// StringRef with a stable character pointer.
+class StringSaver final {
+ BumpPtrAllocator &Alloc;
+
+public:
+ StringSaver(BumpPtrAllocator &Alloc) : Alloc(Alloc) {}
+ StringRef save(const char *S) { return save(StringRef(S)); }
+ StringRef save(StringRef S);
+ StringRef save(const Twine &S) { return save(StringRef(S.str())); }
+ StringRef save(const std::string &S) { return save(StringRef(S)); }
+};
+}
+#endif