188       Segment(const Segment &Seg) = default;
189       Segment &operator=(const Segment &Seg) = default;
196       Block(Value *Val, int Len, int Pos) : Seg(Val, 0, Len), Pos(Pos) {}  in Block()
198           : Seg(Val, Off, Len), Pos(Pos) {}  in Block()
201       Segment Seg; // Value segment.  member
281     OS << "  @" << B.Pos << " [" << B.Seg.Start << ',' << B.Seg.Size << "] "  in operator <<()
282        << *B.Seg.Val << '\n';  in operator <<()
337   int Max = Blocks[0].Pos + Blocks[0].Seg.Size;  in extent()
340     Max = std::max(Max, Blocks[i].Pos + Blocks[i].Seg.Size);  in extent()
349     int R = std::min(B.Pos + B.Seg.Size, Start + Length); // Right end+1.  in section()
353       Section.Blocks.emplace_back(B.Seg.Val, B.Seg.Start + Off, R - L, L);  in section()
368     Values[i] = Blocks[i].Seg.Val;  in values()
807         ASpan[j].Seg.Val = HVC.vralignb(Builder, ASpan[j].Seg.Val,  in realignGroup()
808                                         ASpan[j + 1].Seg.Val, AlignVal);  in realignGroup()
813       ByteSpan ASection = ASpan.section(B.Pos, B.Seg.Size).shift(-B.Pos);  in realignGroup()
814       Value *Accum = UndefValue::get(HVC.getByteTy(B.Seg.Size));  in realignGroup()
816         Value *Pay = HVC.vbytes(Builder, getPayload(S.Seg.Val));  in realignGroup()
818             HVC.insertb(Builder, Accum, Pay, S.Seg.Start, S.Seg.Size, S.Pos);  in realignGroup()
826       Type *ValTy = getPayload(B.Seg.Val)->getType();  in realignGroup()
828       Value *Sel = Builder.CreateSelect(getMask(B.Seg.Val), Cast,  in realignGroup()
829                                         getPassThrough(B.Seg.Val));  in realignGroup()
830       B.Seg.Val->replaceAllUsesWith(Sel);  in realignGroup()
855         Value *Pay = getPayload(S.Seg.Val);  in realignGroup()
856         Value *Mask = HVC.rescale(Builder, MakeVec(Builder, getMask(S.Seg.Val)),  in realignGroup()
859                              S.Seg.Start, S.Seg.Size, S.Pos);  in realignGroup()
861                              S.Seg.Start, S.Seg.Size, S.Pos);  in realignGroup()
870         ASpanV[j - 1].Seg.Val = HVC.vlalignb(Builder, ASpanV[j - 1].Seg.Val,  in realignGroup()
871                                              ASpanV[j].Seg.Val, AlignVal);  in realignGroup()
872         ASpanM[j - 1].Seg.Val = HVC.vlalignb(Builder, ASpanM[j - 1].Seg.Val,  in realignGroup()
873                                              ASpanM[j].Seg.Val, AlignVal);  in realignGroup()
879       Value *Val = ASpanV[i].Seg.Val;  in realignGroup()
880       Value *Mask = ASpanM[i].Seg.Val; // bytes  in realignGroup()