/// dominates the rest, prepare a code extractor object for pulling this
/// sequence out into its new function. When a DominatorTree is also given,
/// extra checking and transformations are enabled.
- CodeExtractor(ArrayRef<BasicBlock *> BBs, DominatorTree *DT = 0,
+ CodeExtractor(ArrayRef<BasicBlock *> BBs, DominatorTree *DT = nullptr,
bool AggregateArgs = false);
/// \brief Create a code extractor for a loop body.