ap := a.Type().HasPointers()
	bp := b.Type().HasPointers()
	if ap != bp {
		return ap
	}

	// Group variables that need zeroing, so we can efficiently zero
	// them altogether.
	ap = a.Needzero()
	bp = b.Needzero()
	if ap != bp {
		return ap
	}

	// Sort variables in descending alignment order, so we can optimally
	// pack variables into the frame.
	if a.Type().Alignment() != b.Type().Alignment() {

//
// Allocating and freeing a large object uses the mheap
// directly, bypassing the mcache and mcentral.
//
// If mspan.needzero is false, then free object slots in the mspan are
// already zeroed. Otherwise if needzero is true, objects are zeroed as
// they are allocated. There are various benefits to delaying zeroing
// this way:
//
//	1. Stack frame allocation can avoid zeroing altogether.

	spanclass             spanClass     // size class and noscan (uint8)
	state                 mSpanStateBox // mSpanInUse etc; accessed atomically (get/set methods)
	needzero              uint8         // needs to be zeroed before allocation
	isUserArenaChunk      bool          // whether or not this span represents a user arena

				// occur (almost) anywhere. Because it is live
				// everywhere, it must be zeroed on entry.
				livedefer.Set(int32(i))
				// It was already marked as Needzero when created.
				if !n.Needzero() {
					base.Fatalf("all pointer-containing defer arg slots should have Needzero set")
				}
			}
		}
	}

	// We must analyze the entry block first. The runtime assumes
	// the function entry map is index 0. Conveniently, layout

	var state uint32

	// Iterate through declarations. Autos are sorted in decreasing
	// frame offset order.
	for _, n := range e.curfn.Dcl {
		if !n.Needzero() {
			continue
		}
		if n.Class != ir.PAUTO {
			e.Fatalf(n.Pos(), "needzero class %d", n.Class)
		}
		if n.Type().Size()%int64(types.PtrSize) != 0 || n.FrameOffset()%int64(types.PtrSize) != 0 || n.Type().Size() == 0 {

	b := v.Bool()
	if b || state.sendZero {
		state.update(i)
		if b {
			state.encodeUint(1)
		} else {
			state.encodeUint(0)
		}
	}
}

// encInt encodes the signed integer (int int8 int16 int32 int64) referenced by v.
func encInt(i *encInstr, state *encoderState, v reflect.Value) {
	value := v.Int()
	if value != 0 || state.sendZero {
		state.update(i)
		state.encodeInt(value)
	}

//go:build ignore

package runtime

// emitted by compiler, not referred to by go programs

import "unsafe"

func newobject(typ *byte) *any
func mallocgc(size uintptr, typ *byte, needszero bool) unsafe.Pointer
func panicdivide()
func panicshift()
func panicmakeslicelen()
func panicmakeslicecap()
func throwinit()
func panicwrap()

func gopanic(interface{})
func gorecover(*int32) interface{}

func isValidIPMask(mask []byte) bool {
	seenZero := false

	for _, b := range mask {
		if seenZero {
			if b != 0 {
				return false
			}

			continue
		}

		switch b {
		case 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe:
			seenZero = true
		case 0xff:
		default:
			return false
		}
	}

	return true
}