// AVX2GATHER mask/index/dest #UD cases.
	VPGATHERQQ Y2, (BP)(X2*2), Y2   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X2*2), Y7   // ERROR "mask, index, and destination registers should be distinct"
	VPGATHERQQ Y2, (BP)(X7*2), Y2   // ERROR "mask, index, and destination registers should be distinct"

						nmsa := (*syscall.RawSockaddrInet6)(unsafe.Pointer(nmrsa))
						ip = make(IP, IPv6len)
						copy(ip, ipsa.Addr[:])
						mask = make(IPMask, IPv6len)
						copy(mask, nmsa.Addr[:])
					}
					ifa := &IPNet{IP: ip, Mask: mask}
					ifat = append(ifat, ifa)
				}
			}
		}
		tab = tab[ifm.Msglen:]
	}

	return ifat, nil
}

		sig.delivering.Add(-1)
		return false
	}

	// Add signal to outgoing queue.
	for {
		mask := sig.mask[s/32]
		if mask&bit != 0 {
			sig.delivering.Add(-1)
			return true // signal already in queue
		}
		if atomic.Cas(&sig.mask[s/32], mask, mask|bit) {
			break
		}
	}

	// Notify receiver that queue has new bit.
Send:
	for {
		switch sig.state.Load() {
		default:

	fs.Int32Var(&o.NodeCIDRMaskSize, "node-cidr-mask-size", o.NodeCIDRMaskSize, "Mask size for node cidr in cluster. Default is 24 for IPv4 and 64 for IPv6.")
	fs.Int32Var(&o.NodeCIDRMaskSizeIPv4, "node-cidr-mask-size-ipv4", o.NodeCIDRMaskSizeIPv4, "Mask size for IPv4 node cidr in dual-stack cluster. Default is 24.")

	// features seem to contribute similar slowdowns (~1.4x each).

	mask := maskOf(types)
	for i := 0; i < len(in.events); {
		ev := in.events[i]
		if ev.index > i {
			// push
			if ev.typ&mask != 0 {
				f(ev.node)
			}
			pop := ev.index
			if in.events[pop].typ&mask == 0 {
				// Subtrees do not contain types: skip them and pop.
				i = pop + 1
				continue
			}
		}

	// Array of NCases elements.
	// Each case must be a non-empty interface type.
	Cases [1]*InterfaceType
}

type InterfaceSwitchCache struct {
	Mask    uintptr                      // mask for index. Must be a power of 2 minus 1
	Entries [1]InterfaceSwitchCacheEntry // Mask+1 entries total
}

type InterfaceSwitchCacheEntry struct {
	// type of source value (a *Type)
	Typ uintptr
	// case # to dispatch to
	Case int

    int hash = smearedHash(object);
    int mask = hashTableMask();
    int tableIndex = hash & mask;
    int next = CompactHashing.tableGet(requireTable(), tableIndex);
    if (next == UNSET) { // uninitialized bucket
      if (newSize > mask) {
        // Resize and add new entry
        mask = resizeTable(mask, CompactHashing.newCapacity(mask), hash, newEntryIndex);
      } else {

		// Invalid ip range[0] IPv4 mask
		{"192.0.2.1/33,192.168.128.0/17", "<nil>", "<nil>", "<nil>", true},
		// Invalid ip range[1] IPv4 mask
		{"192.0.2.1/24,192.168.128.0/33", "<nil>", "<nil>", "<nil>", true},
		// Invalid ip range[0] IPv6 mask
		{"2001:db2:1:3:4::1/129,192.0.2.1/24", "<nil>", "<nil>", "<nil>", true},
		// Invalid ip range[1] IPv6 mask

#include <signal.h>
#include <pthread.h>

// Save the signal mask at startup so that we see what it is before
// the Go runtime starts setting up signals.

static sigset_t mask;

static void init(void) __attribute__ ((constructor));

static void init() {
	sigemptyset(&mask);
	pthread_sigmask(SIG_SETMASK, NULL, &mask);
}

int SIGINTBlocked() {
	return sigismember(&mask, SIGINT);
}
*/
import "C"

import (
	"fmt"

			}
			if ip.To16() != nil && ip.To4() == nil { // IPv6 address
				mask = CIDRMask(pfxlen, 8*IPv6len)
			}

			addrs = append(addrs, &IPNet{IP: ip, Mask: mask})
		}
	}

	return addrs, nil
}

// interfaceMulticastAddrTable returns addresses for a specific
// interface.
func interfaceMulticastAddrTable(ifi *Interface) ([]Addr, error) {
	return nil, nil