277   bool refineRxSBGMask(RxSBGOperands &RxSBG, uint64_t Mask) const;
281   bool expandRxSBG(RxSBGOperands &RxSBG) const;
777 bool SystemZDAGToDAGISel::refineRxSBGMask(RxSBGOperands &RxSBG,  in refineRxSBGMask()  argument
780   if (RxSBG.Rotate != 0)  in refineRxSBGMask()
781     Mask = (Mask << RxSBG.Rotate) | (Mask >> (64 - RxSBG.Rotate));  in refineRxSBGMask()
782   Mask &= RxSBG.Mask;  in refineRxSBGMask()
783   if (TII->isRxSBGMask(Mask, RxSBG.BitSize, RxSBG.Start, RxSBG.End)) {  in refineRxSBGMask()
784     RxSBG.Mask = Mask;  in refineRxSBGMask()
791 static bool maskMatters(RxSBGOperands &RxSBG, uint64_t Mask) {  in maskMatters()  argument
793   if (RxSBG.Rotate != 0)  in maskMatters()
794     Mask = ((Mask << RxSBG.Rotate) | (Mask >> (64 - RxSBG.Rotate)));  in maskMatters()
795   return (Mask & RxSBG.Mask) != 0;  in maskMatters()
798 bool SystemZDAGToDAGISel::expandRxSBG(RxSBGOperands &RxSBG) const {  in expandRxSBG()
799   SDValue N = RxSBG.Input;  in expandRxSBG()
803     if (RxSBG.Opcode == SystemZ::RNSBG)  in expandRxSBG()
809     if (!refineRxSBGMask(RxSBG, Mask))  in expandRxSBG()
811     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
815     if (RxSBG.Opcode == SystemZ::RNSBG)  in expandRxSBG()
824     if (!refineRxSBGMask(RxSBG, Mask)) {  in expandRxSBG()
830       if (!refineRxSBGMask(RxSBG, Mask))  in expandRxSBG()
833     RxSBG.Input = Input;  in expandRxSBG()
838     if (RxSBG.Opcode != SystemZ::RNSBG)  in expandRxSBG()
847     if (!refineRxSBGMask(RxSBG, Mask)) {  in expandRxSBG()
853       if (!refineRxSBGMask(RxSBG, Mask))  in expandRxSBG()
856     RxSBG.Input = Input;  in expandRxSBG()
862     if (RxSBG.BitSize != 64 || N.getValueType() != MVT::i64)  in expandRxSBG()
868     RxSBG.Rotate = (RxSBG.Rotate + CountNode->getZExtValue()) & 63;  in expandRxSBG()
869     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
875     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
879     if (RxSBG.Opcode != SystemZ::RNSBG) {  in expandRxSBG()
882       if (!refineRxSBGMask(RxSBG, allOnes(InnerBitSize)))  in expandRxSBG()
885       RxSBG.Input = N.getOperand(0);  in expandRxSBG()
895     if (maskMatters(RxSBG, allOnes(BitSize) - allOnes(InnerBitSize))) {  in expandRxSBG()
898       if (RxSBG.Mask == 1 && RxSBG.Rotate == 1)  in expandRxSBG()
899         RxSBG.Rotate += (BitSize - InnerBitSize);  in expandRxSBG()
904     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
918     if (RxSBG.Opcode == SystemZ::RNSBG) {  in expandRxSBG()
921       if (maskMatters(RxSBG, allOnes(Count)))  in expandRxSBG()
925       if (!refineRxSBGMask(RxSBG, allOnes(BitSize - Count) << Count))  in expandRxSBG()
929     RxSBG.Rotate = (RxSBG.Rotate + Count) & 63;  in expandRxSBG()
930     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
945     if (RxSBG.Opcode == SystemZ::RNSBG || Opcode == ISD::SRA) {  in expandRxSBG()
948       if (maskMatters(RxSBG, allOnes(Count) << (BitSize - Count)))  in expandRxSBG()
953       if (!refineRxSBGMask(RxSBG, allOnes(BitSize - Count)))  in expandRxSBG()
957     RxSBG.Rotate = (RxSBG.Rotate - Count) & 63;  in expandRxSBG()
958     RxSBG.Input = N.getOperand(0);  in expandRxSBG()
1089   RxSBGOperands RxSBG[] = {  in tryRxSBG()  local
1095     while (RxSBG[I].Input->hasOneUse() && expandRxSBG(RxSBG[I]))  in tryRxSBG()
1102       if (RxSBG[I].Input.getOpcode() != ISD::ANY_EXTEND &&  in tryRxSBG()
1103           RxSBG[I].Input.getOpcode() != ISD::TRUNCATE)  in tryRxSBG()
1115   if (Opcode == SystemZ::ROSBG && (RxSBG[I].Mask & 0xff) == 0)  in tryRxSBG()
1122   if (Opcode == SystemZ::ROSBG && detectOrAndInsertion(Op0, RxSBG[I].Mask)) {  in tryRxSBG()
1131     convertTo(DL, MVT::i64, RxSBG[I].Input),  in tryRxSBG()
1132     CurDAG->getTargetConstant(RxSBG[I].Start, DL, MVT::i32),  in tryRxSBG()
1133     CurDAG->getTargetConstant(RxSBG[I].End, DL, MVT::i32),  in tryRxSBG()
1134     CurDAG->getTargetConstant(RxSBG[I].Rotate, DL, MVT::i32)  in tryRxSBG()