From 7b11e339d20edd9ee64efb179390a2054cd456c0 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 2 May 2004 16:06:18 +0000
Subject: [PATCH] Fix a problem with double freeing memory.  For some reason,
 CallGraph is not acting like a normal pass.  :(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13318 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/IPA/CallGraph.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Analysis/IPA/CallGraph.cpp b/lib/Analysis/IPA/CallGraph.cpp
index 74a28d818d7..70bf2c496b0 100644
--- a/lib/Analysis/IPA/CallGraph.cpp
+++ b/lib/Analysis/IPA/CallGraph.cpp
@@ -126,6 +126,7 @@ void CallGraph::destroy() {
     delete I->second;
   FunctionMap.clear();
   delete CallsExternalNode;
+  CallsExternalNode = 0;
 }
 
 static void WriteToOutput(const CallGraphNode *CGN, std::ostream &o) {