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Don't leak! Always remove oneself as a listener after adding oneself.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81736 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2009-09-14 00:36:52 +00:00
parent bc6836bbe3
commit adc3142fdd
1 changed files with 15 additions and 6 deletions
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21
lib/VMCore/Verifier.cpp
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@ -57,7 +57,7 @@
#include "llvm/Support/CallSite.h"
#include "llvm/Support/CFG.h"
#include "llvm/Support/InstVisitor.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
@ -108,25 +108,34 @@ static const PassInfo *const PreVerifyID = &PreVer;
namespace {
struct TypeSet : public AbstractTypeUser {
SmallSet<const Type *, 16> Types;
SmallSetVector<const Type *, 16> Types;
/// Insert a type into the set of types.
bool insert(const Type *Ty) {
bool Inserted = Types.insert(Ty);
if (!Inserted)
if (!Types.insert(Ty))
return false;
if (Ty->isAbstract())
Ty->addAbstractTypeUser(this);
return true;
}
// Remove ourselves as abstract type listeners for any types that remain
// abstract when the TypeSet is destroyed.
~TypeSet() {
for (SmallSetVector<const Type *, 16>::iterator I = Types.begin(),
E = Types.end(); I != E; ++I) {
const Type *Ty = *I;
if (Ty->isAbstract())
Ty->removeAbstractTypeUser(this);
}
}
// Abstract type user interface.
/// Remove types from the set when refined. Do not insert the type it was
/// refined to because that type hasn't been verified yet.
void refineAbstractType(const DerivedType *OldTy, const Type *NewTy) {
Types.erase(OldTy);
Types.remove(OldTy);
OldTy->removeAbstractTypeUser(this);
}
void typeBecameConcrete(const DerivedType *AbsTy) {}