From f24944953986ad1e0a78279e6c3288e15a7e2619 Mon Sep 17 00:00:00 2001
From: Ted Kremenek <kremenek@apple.com>
Date: Thu, 17 Nov 2011 23:02:14 +0000
Subject: [PATCH] Fix bug in RefCountedBase/RefCountedBaseVPTR where the
 reference count was accidentally copied as part of the copy constructor. 
 This could result in objects getting leaked because there reference count was
 too high.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144931 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/ADT/IntrusiveRefCntPtr.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/llvm/ADT/IntrusiveRefCntPtr.h b/include/llvm/ADT/IntrusiveRefCntPtr.h
index 2f6fd2bd559..8757f00d73c 100644
--- a/include/llvm/ADT/IntrusiveRefCntPtr.h
+++ b/include/llvm/ADT/IntrusiveRefCntPtr.h
@@ -46,6 +46,7 @@ namespace llvm {
 
   public:
     RefCountedBase() : ref_cnt(0) {}
+    RefCountedBase(const RefCountedBase &) : ref_cnt(0) {}
 
     void Retain() const { ++ref_cnt; }
     void Release() const {
@@ -67,6 +68,8 @@ namespace llvm {
 
   protected:
     RefCountedBaseVPTR() : ref_cnt(0) {}
+    RefCountedBaseVPTR(const RefCountedBaseVPTR &) : ref_cnt(0) {}
+
     virtual ~RefCountedBaseVPTR() {}
 
     void Retain() const { ++ref_cnt; }