Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/lib/Support/StringSaver.cpp

@@ -0,0 +1,19 @@
+//===-- StringSaver.cpp ---------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/StringSaver.h"
+
+using namespace llvm;
+
+StringRef StringSaver::save(StringRef S) {
+  char *P = Alloc.Allocate<char>(S.size() + 1);
+  memcpy(P, S.data(), S.size());
+  P[S.size()] = '\0';
+  return StringRef(P, S.size());
+}