copy(b.data[n1:], b.tmp[:n3-n2])
		return
	}
	for _, u := range x {
		encodeUint64(b, tag, u)
	}
}

func encodeUint64Opt(b *buffer, tag int, x uint64) {
	if x == 0 {
		return
	}
	encodeUint64(b, tag, x)
}

func encodeInt64(b *buffer, tag int, x int64) {
	u := uint64(x)
	encodeUint64(b, tag, u)
}

func encodeInt64Opt(b *buffer, tag int, x int64) {
	if x == 0 {
		return

		copy(b.data[n1:], b.tmp[:n3-n2])
		return
	}
	for _, u := range x {
		encodeUint64(b, tag, u)
	}
}

func encodeUint64Opt(b *buffer, tag int, x uint64) {
	if x == 0 {
		return
	}
	encodeUint64(b, tag, x)
}

func encodeInt64(b *buffer, tag int, x int64) {
	u := uint64(x)
	encodeUint64(b, tag, u)
}

func encodeInt64s(b *buffer, tag int, x []int64) {
	if len(x) > 2 {
		// Use packed encoding

		func(b *buffer, m message) error { return decodeInt64s(b, &m.(*packedInts).int64s) },
	}
}

func (u *packedInts) encode(b *buffer) {
	encodeUint64s(b, 1, u.uint64s)
	encodeInt64s(b, 2, u.int64s)

	encodeInt64Opt(b, 10, p.DurationNanos)
	if pt := p.PeriodType; pt != nil && (pt.typeX != 0 || pt.unitX != 0) {
		encodeMessage(b, 11, p.PeriodType)
	}
	encodeInt64Opt(b, 12, p.Period)
	encodeInt64s(b, 13, p.commentX)
	encodeInt64(b, 14, p.defaultSampleTypeX)
}

var profileDecoder = []decoder{
	nil, // 0
	// repeated ValueType sample_type = 1
	func(b *buffer, m message) error {
		x := new(ValueType)

}

func (p *Sample) decoder() []decoder {
	return sampleDecoder
}

func (p *Sample) encode(b *buffer) {
	encodeUint64s(b, 1, p.locationIDX)
	for _, x := range p.Value {
		encodeInt64(b, 2, x)
	}
	for _, x := range p.labelX {
		encodeMessage(b, 3, x)
	}
}

var sampleDecoder = []decoder{
	nil, // 0
	// repeated uint64 location = 1