From 2c3f7ae3843bdc9dcfe85393e178211976c1f9bd Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 17 Jul 2008 23:49:46 +0000
Subject: Re-introduce LeakDetector support for MachineInstrs and
 MachineBasicBlocks. Fix a leak that this turned up in LowerSubregs.cpp. And,
 comment a leak in LiveIntervalAnalysis.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53746 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/MachineBasicBlock.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'lib/CodeGen/MachineBasicBlock.cpp')

diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp
index 31e6ea8785..9a9f5b9271 100644
--- a/lib/CodeGen/MachineBasicBlock.cpp
+++ b/lib/CodeGen/MachineBasicBlock.cpp
@@ -18,6 +18,7 @@
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetInstrDesc.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/LeakDetector.h"
 #include <algorithm>
 using namespace llvm;
 
@@ -26,6 +27,10 @@ MachineBasicBlock::MachineBasicBlock(MachineFunction &mf, const BasicBlock *bb)
   Insts.getTraits().Parent = this;
 }
 
+MachineBasicBlock::~MachineBasicBlock() {
+  LeakDetector::removeGarbageObject(this);
+}
+
 std::ostream& llvm::operator<<(std::ostream &OS, const MachineBasicBlock &MBB) {
   MBB.print(OS);
   return OS;
@@ -46,11 +51,14 @@ void alist_traits<MachineBasicBlock>::addNodeToList(MachineBasicBlock* N) {
   MachineRegisterInfo &RegInfo = MF.getRegInfo();
   for (MachineBasicBlock::iterator I = N->begin(), E = N->end(); I != E; ++I)
     I->AddRegOperandsToUseLists(RegInfo);
+
+  LeakDetector::removeGarbageObject(N);
 }
 
 void alist_traits<MachineBasicBlock>::removeNodeFromList(MachineBasicBlock* N) {
   N->getParent()->removeFromMBBNumbering(N->Number);
   N->Number = -1;
+  LeakDetector::addGarbageObject(N);
 }
 
 
@@ -65,6 +73,8 @@ void alist_traits<MachineInstr>::addNodeToList(MachineInstr* N) {
   // use/def lists.
   MachineFunction *MF = Parent->getParent();
   N->AddRegOperandsToUseLists(MF->getRegInfo());
+
+  LeakDetector::removeGarbageObject(N);
 }
 
 /// removeNodeFromList (MI) - When we remove an instruction from a basic block
@@ -77,6 +87,8 @@ void alist_traits<MachineInstr>::removeNodeFromList(MachineInstr* N) {
   N->RemoveRegOperandsFromUseLists();
   
   N->setParent(0);
+
+  LeakDetector::addGarbageObject(N);
 }
 
 /// transferNodesFromList (MI) - When moving a range of instructions from one
-- 
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