From f6055806d4a6a39c49c441215a9a5d3a8e933de0 Mon Sep 17 00:00:00 2001
From: Torok Edwin <edwintorok@gmail.com>
Date: Sat, 3 May 2008 20:25:26 +0000
Subject: [PATCH] Implement destructor for PostDominatorTree to eliminate a
 memory leak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50607 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Analysis/PostDominators.h | 2 ++
 lib/Analysis/PostDominators.cpp        | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/include/llvm/Analysis/PostDominators.h b/include/llvm/Analysis/PostDominators.h
index 07910e9538c..27c2b26c8c2 100644
--- a/include/llvm/Analysis/PostDominators.h
+++ b/include/llvm/Analysis/PostDominators.h
@@ -29,6 +29,8 @@ struct PostDominatorTree : public FunctionPass {
     DT = new DominatorTreeBase<BasicBlock>(true);
   }
 
+  ~PostDominatorTree();
+
   virtual bool runOnFunction(Function &F);
 
   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
diff --git a/lib/Analysis/PostDominators.cpp b/lib/Analysis/PostDominators.cpp
index 4330e9039d1..c72b140a622 100644
--- a/lib/Analysis/PostDominators.cpp
+++ b/lib/Analysis/PostDominators.cpp
@@ -37,6 +37,11 @@ bool PostDominatorTree::runOnFunction(Function &F) {
   return false;
 }
 
+PostDominatorTree::~PostDominatorTree()
+{
+  delete DT;
+}
+
 //===----------------------------------------------------------------------===//
 //  PostDominanceFrontier Implementation
 //===----------------------------------------------------------------------===//