ConversionPatternRewriter& rewriter) const final {
    RankedTensorType type =
        mlir::dyn_cast_or_null<RankedTensorType>(iota_op.getType());
    // TF::RangeOp doesn't support UI16.
    if (!type || type.getElementType().isUnsignedInteger(16)) return failure();

    const uint64_t dimension = iota_op.getIotaDimension();
    Type element_type = type.getElementType();

	0xFA: pLl | pp, // 'ú'
	0xFB: pLl | pp, // 'û'
	0xFC: pLl | pp, // 'ü'
	0xFD: pLl | pp, // 'ý'
	0xFE: pLl | pp, // 'þ'
	0xFF: pLl | pp, // 'ÿ'
}

var asciiFold = [MaxASCII + 1]uint16{
	0x0000,
	0x0001,
	0x0002,
	0x0003,
	0x0004,
	0x0005,
	0x0006,
	0x0007,
	0x0008,
	0x0009,
	0x000A,
	0x000B,
	0x000C,
	0x000D,
	0x000E,
	0x000F,

			return
		}
		if _, err := io.ReadFull(s, buf[4:ipLen+6]); err != nil {
			t.Errorf("socks5 proxy address read: %v", err)
			return
		}
		ip := net.IP(buf[4 : ipLen+4])
		port := binary.BigEndian.Uint16(buf[ipLen+4 : ipLen+6])
		copy(buf[:3], []byte{5, 0, 0})
		if _, err := s.Write(buf[:ipLen+6]); err != nil {
			t.Errorf("socks5 proxy connect write: %v", err)
			return
		}