From 76504777f53237ba3c4fbd4da11290b18f0a832e Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Thu, 24 Jan 2013 00:14:46 +0000
Subject: [PATCH] Cleanup the AttributeSetNodes that we create.

llvm-svn: 173311
---
 lib/IR/LLVMContextImpl.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/IR/LLVMContextImpl.cpp b/lib/IR/LLVMContextImpl.cpp
index 8fc9379e5bf..89e163f5141 100644
--- a/lib/IR/LLVMContextImpl.cpp
+++ b/lib/IR/LLVMContextImpl.cpp
@@ -109,6 +109,13 @@ LLVMContextImpl::~LLVMContextImpl() {
     delete &*Elem;
   }
 
+  // Destroy attribute node lists.
+  for (FoldingSetIterator<AttributeSetNode> I = AttrsSetNodes.begin(),
+         E = AttrsSetNodes.end(); I != E; ) {
+    FoldingSetIterator<AttributeSetNode> Elem = I++;
+    delete &*Elem;
+  }
+
   // Destroy MDNodes.  ~MDNode can move and remove nodes between the MDNodeSet
   // and the NonUniquedMDNodes sets, so copy the values out first.
   SmallVector<MDNode*, 8> MDNodes;