// We know it's one of these.
	switch ut.externalDec {
	case xGob:
		err = value.Interface().(GobDecoder).GobDecode(b)
	case xBinary:
		err = value.Interface().(encoding.BinaryUnmarshaler).UnmarshalBinary(b)
	case xText:
		err = value.Interface().(encoding.TextUnmarshaler).UnmarshalText(b)
	}
	if err != nil {
		error_(err)
	}
}

// ignoreGobDecoder discards the data for a GobDecoder value with no destination.

	// We know it's one of these.
	switch ut.externalEnc {
	case xGob:
		data, err = v.Interface().(GobEncoder).GobEncode()
	case xBinary:
		data, err = v.Interface().(encoding.BinaryMarshaler).MarshalBinary()
	case xText:
		data, err = v.Interface().(encoding.TextMarshaler).MarshalText()
	}
	if err != nil {
		error_(err)
	}
	state := enc.newEncoderState(b)
	state.fieldnum = -1
	state.encodeUint(uint64(len(data)))

		{
			`"Gø Pher" <******@****.***>`,
			[]*Address{
				{
					Name:    `Gø Pher`,
					Address: "******@****.***",
				},
			},
		},
		// RFC 6532 3.2, atext /= UTF8-non-ascii
		{
			`µ <******@****.***>`,
			[]*Address{
				{
					Name:    `µ`,
					Address: "******@****.***",
				},
			},
		},

	LFROM  = 1 << 0
	LTO    = 1 << 1
	LPOOL  = 1 << 2
	LPCREL = 1 << 3
)

var optab = []Optab{
	/* struct Optab:
	OPCODE, from, prog->reg, to, type, size, param, flag, extra data size, optional suffix */
	{obj.ATEXT, C_ADDR, C_NONE, C_TEXTSIZE, 0, 0, 0, 0, 0, 0},
	{AADD, C_REG, C_REG, C_REG, 1, 4, 0, 0, 0, C_SBIT},
	{AADD, C_REG, C_NONE, C_REG, 1, 4, 0, 0, 0, C_SBIT},
	{AAND, C_REG, C_REG, C_REG, 1, 4, 0, 0, 0, C_SBIT},

			writeUleb128(w, v.index)
			continue

		case ANot:
			writeOpcode(w, AI32Eqz)
			continue

		case obj.AUNDEF:
			writeOpcode(w, AUnreachable)
			continue

		case obj.ANOP, obj.ATEXT, obj.AFUNCDATA, obj.APCDATA:
			// ignore
			continue
		}

		writeOpcode(w, p.As)

		switch p.As {
		case ABlock, ALoop, AIf:
			if p.From.Offset != 0 {

const (
	AXXX As = iota
	ACALL
	ADUFFCOPY
	ADUFFZERO
	AEND
	AFUNCDATA
	AJMP
	ANOP
	APCALIGN
	APCALIGNMAX // currently x86, amd64 and arm64
	APCDATA
	ARET
	AGETCALLERPC
	ATEXT
	AUNDEF
	A_ARCHSPECIFIC
)

// Each architecture is allotted a distinct subspace of opcode values
// for declaring its arch-specific opcodes.
// Within this subspace, the first arch-specific opcode should be

			return
		}
		argSize = p.positiveAtoi(op[1].String())
	}
	p.ctxt.InitTextSym(nameAddr.Sym, int(flag), p.pos())
	prog := &obj.Prog{
		Ctxt: p.ctxt,
		As:   obj.ATEXT,
		Pos:  p.pos(),
		From: nameAddr,
		To: obj.Addr{
			Type:   obj.TYPE_TEXTSIZE,
			Offset: frameSize,
			// Argsize set below.
		},
	}
	nameAddr.Sym.Func().Text = prog

var optab []Optab

var optabBase = []Optab{
	{as: obj.ATEXT, a1: C_LOREG, a6: C_TEXTSIZE, type_: 0, size: 0},
	{as: obj.ATEXT, a1: C_LOREG, a3: C_32CON, a6: C_TEXTSIZE, type_: 0, size: 0},
	{as: obj.ATEXT, a1: C_ADDR, a6: C_TEXTSIZE, type_: 0, size: 0},
	{as: obj.ATEXT, a1: C_ADDR, a3: C_32CON, a6: C_TEXTSIZE, type_: 0, size: 0},
	/* move register */

				// qtext
				localPartBytes = append(localPartBytes, c)

			default:
				return mailbox, false
			}
		}
	} else {
		// Atom ("." Atom)*
	NextChar:
		for len(in) > 0 {
			// atext from RFC 2822, Section 3.2.4
			c := in[0]

			switch {
			case c == '\\':
				// Examples given in RFC 3696 suggest that
				// escaped characters can appear outside of a

	// branchLoopHead marks loop entry.
	// Used to insert padding for under-aligned loops.
	branchLoopHead
)

var optab = []Optab{
	{obj.ATEXT, C_ADDR, C_NONE, C_NONE, C_TEXTSIZE, C_NONE, 0, 0, 0, 0},

	{AMOVW, C_REG, C_NONE, C_NONE, C_REG, C_NONE, 1, 4, 0, 0},
	{AMOVV, C_REG, C_NONE, C_NONE, C_REG, C_NONE, 1, 4, 0, 0},