From: Chris Lattner <sabre@nondot.org>
Date: Fri, 21 Sep 2007 18:25:53 +0000 (+0000)
Subject: don't read Block after it is freed.  This fixes PR1684
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c369bd7c503dd748ae1697858f13291bfda6ed80;p=oota-llvm.git

don't read Block after it is freed.  This fixes PR1684


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42204 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/DwarfWriter.cpp b/lib/CodeGen/DwarfWriter.cpp
index 121ef1d9e87..ed4de7d662b 100644
--- a/lib/CodeGen/DwarfWriter.cpp
+++ b/lib/CodeGen/DwarfWriter.cpp
@@ -1301,7 +1301,9 @@ public:
       ValuesSet.InsertNode(Value, Where);
       Values.push_back(Value);
     } else {
+      // Already exists, reuse the previous one.
       delete Block;
+      Block = cast<DIEBlock>(Value);
     }
   
     Die->AddValue(Attribute, Block->BestForm(), Value);