diff options
| -rw-r--r-- | include/llvm/CodeGen/SelectionDAG.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/SelectionDAG.h b/include/llvm/CodeGen/SelectionDAG.h index 91dfeceee1..00e32615cc 100644 --- a/include/llvm/CodeGen/SelectionDAG.h +++ b/include/llvm/CodeGen/SelectionDAG.h @@ -262,6 +262,19 @@ public: // getSrcValue - construct a node to track a Value* through the backend SDOperand getSrcValue(const Value* I, int offset = 0); + /// UpdateNodeOperands - *Mutate* the specified node in-place to have the + /// specified operands. If the resultant node already exists in the DAG, + /// this does not modify the specified node, instead it returns the node that + /// already exists. If the resultant node does not exist in the DAG, the + /// input node is returned. As a degenerate case, if you specify the same + /// input operands as the node already has, the input node is returned. + SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op); + SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2); + SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, + SDOperand Op3); + SDOperand UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, + SDOperand Op3, SDOperand Op4); + SDOperand UpdateNodeOperands(SDOperand N, const std::vector<SDOperand> &Op); /// SelectNodeTo - These are used for target selectors to *mutate* the /// specified node to have the specified return type, Target opcode, and @@ -551,6 +564,10 @@ public: private: void RemoveNodeFromCSEMaps(SDNode *N); SDNode *AddNonLeafNodeToCSEMaps(SDNode *N); + SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op); + SDNode **FindModifiedNodeSlot(SDNode *N, SDOperand Op1, SDOperand Op2); + SDNode **FindModifiedNodeSlot(SDNode *N, const std::vector<SDOperand> &Ops); + void DestroyDeadNode(SDNode *N); void DeleteNodeNotInCSEMaps(SDNode *N); void setNodeValueTypes(SDNode *N, std::vector<MVT::ValueType> &RetVals); |