The leak detector is dead, long live asan and valgrind.

In resent times asan and valgrind have found way more memory management bugs
in llvm than the special purpose leak detector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224703 91177308-0d34-0410-b5e6-96231b3b80d8

lib/IR/BasicBlock.cpp

@@ -19,7 +19,6 @@
 #include "llvm/IR/Instructions.h"
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/LeakDetector.h"
 #include "llvm/IR/Type.h"
 #include <algorithm>
 using namespace llvm;
@@ -47,9 +46,6 @@ BasicBlock::BasicBlock(LLVMContext &C, const Twine &Name, Function *NewParent,
                        BasicBlock *InsertBefore)
   : Value(Type::getLabelTy(C), Value::BasicBlockVal), Parent(nullptr) {
 
-  // Make sure that we get added to a function
-  LeakDetector::addGarbageObject(this);
-
   if (NewParent)
     insertInto(NewParent, InsertBefore);
   else
@@ -94,14 +90,8 @@ BasicBlock::~BasicBlock() {
 }
 
 void BasicBlock::setParent(Function *parent) {
-  if (getParent())
-    LeakDetector::addGarbageObject(this);
-
   // Set Parent=parent, updating instruction symtab entries as appropriate.
   InstList.setSymTabObject(&Parent, parent);
-
-  if (getParent())
-    LeakDetector::removeGarbageObject(this);
 }
 
 void BasicBlock::removeFromParent() {