/// version if 'From' is known to have a single result, use the second
/// if you have two nodes with identical results, use the third otherwise.
///
- void ReplaceAllUsesWith(SDOperand From, SDOperand Op);
- void ReplaceAllUsesWith(SDNode *From, SDNode *To);
- void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To);
+ /// These methods all take an optional vector, which (if not null) is
+ /// populated with any nodes that are deleted from the SelectionDAG, due to
+ /// new equivalences that are discovered.
+ ///
+ void ReplaceAllUsesWith(SDOperand From, SDOperand Op,
+ std::vector<SDNode*> *Deleted = 0);
+ void ReplaceAllUsesWith(SDNode *From, SDNode *To,
+ std::vector<SDNode*> *Deleted = 0);
+ void ReplaceAllUsesWith(SDNode *From, const std::vector<SDOperand> &To,
+ std::vector<SDNode*> *Deleted = 0);
/// DeleteNode - Remove the specified node from the system. This node must
void RemoveNodeFromCSEMaps(SDNode *N);
SDNode *AddNonLeafNodeToCSEMaps(SDNode *N);
void DeleteNodeIfDead(SDNode *N, void *NodeSet);
+ void DeleteNodeNotInCSEMaps(SDNode *N);
/// SimplifySetCC - Try to simplify a setcc built with the specified operands
/// and cc. If unable to simplify it, return a null SDOperand.