CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

3585   unsigned SrcNumElts = SrcVT.getVectorNumElements();
3606   if (SrcNumElts == MaskNumElts) {
3612   if (SrcNumElts < MaskNumElts) {
3616     if (MaskNumElts % SrcNumElts == 0) {
3620       unsigned NumConcat = MaskNumElts / SrcNumElts;
3629         if ((Idx % SrcNumElts != (i % SrcNumElts)) ||
3630             (ConcatSrcs[i / SrcNumElts] >= 0 &&
3631              ConcatSrcs[i / SrcNumElts] != (int)(Idx / SrcNumElts))) {
3636         ConcatSrcs[i / SrcNumElts] = Idx / SrcNumElts;
3656     unsigned PaddedMaskNumElts = alignTo(MaskNumElts, SrcNumElts);
3657     unsigned NumConcat = PaddedMaskNumElts / SrcNumElts;
3676       if (Idx >= (int)SrcNumElts)
3677         Idx -= SrcNumElts - PaddedMaskNumElts;
3694   if (SrcNumElts > MaskNumElts) {
3704       if (Idx >= (int)SrcNumElts) {
3706         Idx -= SrcNumElts;
3713       if (NewStartIdx + MaskNumElts > SrcNumElts ||
3742         if (Idx >= (int)SrcNumElts)
3743           Idx -= SrcNumElts + StartIdx[1] - MaskNumElts;
3765       SDValue &Src = Idx < (int)SrcNumElts ? Src1 : Src2;
3766       if (Idx >= (int)SrcNumElts) Idx -= SrcNumElts;