llvm/CodeGen/SelectionDAGNodes.h

1939   /// If passed a non-null UndefElements bitvector, it will resize it to match
1942                         BitVector *UndefElements = nullptr) const;
1946   /// If passed a non-null UndefElements bitvector, it will resize it to match
1948   SDValue getSplatValue(BitVector *UndefElements = nullptr) const;
1954   /// If passed a non-null UndefElements bitvector, it will resize it to match
1958                        BitVector *UndefElements = nullptr) const;
1963   /// If passed a non-null UndefElements bitvector, it will resize it to match
1966   getConstantSplatNode(BitVector *UndefElements = nullptr) const;
1972   /// If passed a non-null UndefElements bitvector, it will resize it to match
1976                          BitVector *UndefElements = nullptr) const;
1981   /// If passed a non-null UndefElements bitvector, it will resize it to match
1984   getConstantFPSplatNode(BitVector *UndefElements = nullptr) const;
1991   int32_t getConstantFPSplatPow2ToLog2Int(BitVector *UndefElements,