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

SSAUpdater was created and destroyed without being initialized.

llvm-svn: 162137
This commit is contained in:
Richard Smith 2012-08-17 21:42:44 +00:00
parent ab6dca06f4
commit aa91b43d1c

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