switch d {
				case signed:
					old.min, old.max = v.AuxInt, v.AuxInt
					if v.AuxInt >= 0 {
						old.umin, old.umax = uint64(v.AuxInt), uint64(v.AuxInt)
					}
				case unsigned:
					old.umin = v.AuxUnsigned()
					old.umax = old.umin
					if int64(old.umin) >= 0 {
						old.min, old.max = int64(old.umin), int64(old.umin)
					}
				}
			}
		}
		lim := noLimit
		switch d {
		case signed: