From 454adf645480245725c74fdbe8840ceff039ef64 Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Sat, 13 Jun 2015 12:49:52 +0000
Subject: Bring in a BumpPtrStringSaver from lld and simplify the interface.

StringSaver now always saves to a BumpPtrAllocator.

The only reason for having the virtual saveImpl is so lld can have a
thread safe version.

The reason for the distinct BumpPtrStringSaver class is to avoid the
virtual destructor.

llvm-svn: 239669
---
 llvm/lib/Support/StringSaver.cpp | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 llvm/lib/Support/StringSaver.cpp

(limited to 'llvm/lib/Support/StringSaver.cpp')

diff --git a/llvm/lib/Support/StringSaver.cpp b/llvm/lib/Support/StringSaver.cpp
new file mode 100644
index 00000000000..d6b84e53dcc
--- /dev/null
+++ b/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;
+
+const char *StringSaver::saveImpl(StringRef S) {
+  char *P = Alloc.Allocate<char>(S.size() + 1);
+  memcpy(P, S.data(), S.size());
+  P[S.size()] = '\0';
+  return P;
+}
-- 
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