From 69f57b1f41c818c5a89c40fd9a4bdca6a76ea934 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Wed, 2 Dec 2009 15:25:16 +0000
Subject: [PATCH] Clarify that DIEString does not keep a copy of the string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90318 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/AsmPrinter/DIE.h          | 2 +-
 lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/CodeGen/AsmPrinter/DIE.h b/lib/CodeGen/AsmPrinter/DIE.h
index dc6a70a6bd6..cad8b895502 100644
--- a/lib/CodeGen/AsmPrinter/DIE.h
+++ b/lib/CodeGen/AsmPrinter/DIE.h
@@ -274,7 +274,7 @@ namespace llvm {
   };
 
   //===--------------------------------------------------------------------===//
-  /// DIEString - A string value DIE.
+  /// DIEString - A string value DIE. This DIE keeps string reference only.
   ///
   class DIEString : public DIEValue {
     const StringRef Str;
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index dcb5900fe90..da2b9c3682f 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -330,8 +330,8 @@ void DwarfDebug::addSInt(DIE *Die, unsigned Attribute,
   Die->addValue(Attribute, Form, Value);
 }
 
-/// addString - Add a string attribute data and value.
-///
+/// addString - Add a string attribute data and value. DIEString only
+/// keeps string reference. 
 void DwarfDebug::addString(DIE *Die, unsigned Attribute, unsigned Form,
                            const StringRef String) {
   DIEValue *Value = new DIEString(String);
-- 
2.34.1