Fix undefined behavior (binding a reference to a dereferenced null pointer) if

SSAUpdater was created and destroyed without being initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162137 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Richard Smith 2012-08-17 21:42:44 +00:00
parent 3028d38f6e
commit 1cec7a05ee

View File

@ -39,7 +39,7 @@ SSAUpdater::SSAUpdater(SmallVectorImpl<PHINode*> *NewPHI)
: AV(0), ProtoType(0), ProtoName(), InsertedPHIs(NewPHI) {}
SSAUpdater::~SSAUpdater() {
delete &getAvailableVals(AV);
delete static_cast<AvailableValsTy*>(AV);
}
/// Initialize - Reset this object to get ready for a new set of SSA