From e8eb2367d282160c24623110bc8ff7fbb098324d Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Wed, 24 Jun 2009 22:42:39 +0000
Subject: Add constructor to create MDString using std::string

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74133 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/VMCore/Constants.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'lib/VMCore')

diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp
index c164a3b..ba8ab2e 100644
--- a/lib/VMCore/Constants.cpp
+++ b/lib/VMCore/Constants.cpp
@@ -1803,6 +1803,17 @@ MDString *MDString::get(const char *StrBegin, const char *StrEnd) {
   return S;
 }
 
+MDString *MDString::get(const std::string &Str) {
+  sys::SmartScopedWriter<true> Writer(&*ConstantsLock);
+  StringMapEntry<MDString *> &Entry = MDStringCache->GetOrCreateValue(
+                                        Str.data(), Str.data() + Str.size());
+  MDString *&S = Entry.getValue();
+  if (!S) S = new MDString(Entry.getKeyData(),
+                           Entry.getKeyData() + Entry.getKeyLength());
+
+  return S;
+}
+
 void MDString::destroyConstant() {
   sys::SmartScopedWriter<true> Writer(&*ConstantsLock);
   MDStringCache->erase(MDStringCache->find(StrBegin, StrEnd));
-- 
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