3817     MVT M1VT = getContainerForFixedLengthVector(DAG, OneRegVT, Subtarget);  in lowerBUILD_VECTOR()  local
3818     assert(M1VT == getLMUL1VT(M1VT));  in lowerBUILD_VECTOR()
3825     unsigned NumOpElts = M1VT.getVectorMinNumElements();  in lowerBUILD_VECTOR()
3831       SubBV = convertToScalableVector(M1VT, SubBV, DAG, Subtarget);  in lowerBUILD_VECTOR()
4709   MVT M1VT = getContainerForFixedLengthVector(DAG, OneRegVT, Subtarget);  in lowerShuffleViaVRegSplitting()  local
4710   assert(M1VT == getLMUL1VT(M1VT));  in lowerShuffleViaVRegSplitting()
4711   unsigned NumOpElts = M1VT.getVectorMinNumElements();  in lowerShuffleViaVRegSplitting()
4724     SDValue SubVec = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, M1VT, SrcVec,  in lowerShuffleViaVRegSplitting()
4728     SubVec = convertToScalableVector(M1VT, SubVec, DAG, Subtarget);  in lowerShuffleViaVRegSplitting()
7949     const MVT M1VT = getLMUL1VT(ContainerVT);  in lowerINSERT_VECTOR_ELT()  local
7950     if (MinVLen == MaxVLen && ContainerVT.bitsGT(M1VT)) {  in lowerINSERT_VECTOR_ELT()
7956           SubRegIdx * M1VT.getVectorElementCount().getKnownMinValue();  in lowerINSERT_VECTOR_ELT()
7959       ContainerVT = M1VT;  in lowerINSERT_VECTOR_ELT()
8162     MVT M1VT = getLMUL1VT(ContainerVT);  in lowerEXTRACT_VECTOR_ELT()  local
8169       SubRegIdx * M1VT.getVectorElementCount().getKnownMinValue();  in lowerEXTRACT_VECTOR_ELT()
8170     Vec = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, M1VT, Vec,  in lowerEXTRACT_VECTOR_ELT()
8173     ContainerVT = M1VT;  in lowerEXTRACT_VECTOR_ELT()
9185   const MVT M1VT = getLMUL1VT(VecVT);  in lowerReductionSeq()  local
9191   auto InnerVT = VecVT.bitsLE(M1VT) ? VecVT : M1VT;  in lowerReductionSeq()
9198   if (M1VT != InnerVT)  in lowerReductionSeq()
9199     InitialValue = DAG.getNode(ISD::INSERT_SUBVECTOR, DL, M1VT,  in lowerReductionSeq()
9200                                DAG.getUNDEF(M1VT),  in lowerReductionSeq()
9202   SDValue PassThru = NonZeroAVL ? DAG.getUNDEF(M1VT) : InitialValue;  in lowerReductionSeq()
9205   SDValue Reduction = DAG.getNode(RVVOpcode, DL, M1VT, Ops);  in lowerReductionSeq()
15971     const MVT M1VT = getLMUL1VT(VT);  in PerformDAGCombine()  local
15972     if (M1VT.bitsLT(VT)) {  in PerformDAGCombine()
15974           DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, M1VT, Passthru,  in PerformDAGCombine()
15977           DAG.getNode(N->getOpcode(), DL, M1VT, M1Passthru, Scalar, VL);  in PerformDAGCombine()
15996     const MVT M1VT = getLMUL1VT(VecVT);  in PerformDAGCombine()  local
15997     if (M1VT.bitsLT(VecVT)) {  in PerformDAGCombine()
15998       Vec = DAG.getNode(ISD::EXTRACT_SUBVECTOR, DL, M1VT, Vec,  in PerformDAGCombine()