From: Chandler Carruth <chandlerc@gmail.com>
Date: Mon, 14 Nov 2011 10:57:23 +0000 (+0000)
Subject: It helps to deallocate memory as well as allocate it. =] This actually
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=f5e47ac596c698f1659c86bdad3a60056e68439c;p=oota-llvm.git

It helps to deallocate memory as well as allocate it. =] This actually
cleans up all the chains allocated during the processing of each
function so that for very large inputs we don't just grow memory usage
without bound.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144533 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/MachineBlockPlacement.cpp b/lib/CodeGen/MachineBlockPlacement.cpp
index 412d0b1fab6..304f16717ba 100644
--- a/lib/CodeGen/MachineBlockPlacement.cpp
+++ b/lib/CodeGen/MachineBlockPlacement.cpp
@@ -766,6 +766,7 @@ bool MachineBlockPlacement::runOnMachineFunction(MachineFunction &F) {
   AlignLoops(F);
 
   BlockToChain.clear();
+  ChainAllocator.DestroyAll();
 
   // We always return true as we have no way to track whether the final order
   // differs from the original order.