// getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
        // For these users fallback to a suboptimal implementation, based on synchronized. This will
        // be a definite performance hit to those users.
        thrownAtomicReferenceFieldUpdaterFailure = atomicReferenceFieldUpdaterFailure;
        helper = new SynchronizedHelper();
      }
    }
    ATOMIC_HELPER = helper;

        // getDeclaredField to throw a NoSuchFieldException when the field is definitely there.
        // For these users fallback to a suboptimal implementation, based on synchronized. This will
        // be a definite performance hit to those users.
        thrownAtomicReferenceFieldUpdaterFailure = atomicReferenceFieldUpdaterFailure;
        helper = new SynchronizedHelper();
      }
    }
    ATOMIC_HELPER = helper;

	}
	if len(p) == 0 {
		return 0, nil
	}
	// If they asked for a 32KB byte read but only 5 bytes are
	// remaining, no need to read 32KB. 6 bytes will answer the
	// question of the whether we hit the limit or go past it.
	// 0 < len(p) < 2^63
	if int64(len(p))-1 > l.n {
		p = p[:l.n+1]
	}
	n, err = l.r.Read(p)

	if int64(n) <= l.n {
		l.n -= int64(n)
		l.err = err
		return n, err

					allowFromNode = true
				}
			}
			// For VIP-like LBs, the VIP is often added as a local
			// address (via an IP route rule).  In that case, a request
			// from a node to the VIP will not hit the loadbalancer but
			// will loop back with the source IP set to the VIP.  We
			// need the following rules to allow requests from this node.
			if allowFromNode {
				for _, lbip := range svcInfo.LoadBalancerVIPs() {

	gp.param = nil

	if atomic.Load(&gcBlackenEnabled) == 0 {
		// The gcBlackenEnabled check in malloc races with the
		// store that clears it but an atomic check in every malloc
		// would be a performance hit.
		// Instead we recheck it here on the non-preemptible system
		// stack to determine if we should perform an assist.

		// GC is done, so ignore any remaining debt.
		gp.gcAssistBytes = 0
		return
	}

		// facts of b.Preds[1] are (in general, b.Preds[1] is
		// a loop-back edge, so we haven't even been there
		// yet). As a conservative approximation, we look for
		// this condition in the predecessor chain until we
		// hit a join point.
		uniquePred := func(b *Block) *Block {
			if len(b.Preds) == 1 {
				return b.Preds[0].b
			}
			return nil
		}
		pred, child := b.Preds[1].b, b

// extracting both return values from a single zone lookup.
func (t Time) locabs() (name string, offset int, abs uint64) {
	l := t.loc
	if l == nil || l == &localLoc {
		l = l.get()
	}
	// Avoid function call if we hit the local time cache.
	sec := t.unixSec()
	if l != &utcLoc {
		if l.cacheZone != nil && l.cacheStart <= sec && sec < l.cacheEnd {
			name = l.cacheZone.name
			offset = l.cacheZone.offset
		} else {

// the second to the word after "start", and so on up to t.PtrBytes. At t.PtrBytes,
// we skip to "start+t.Size_" and begin again from there. This process is
// repeated until we hit "start+s.elemsize".
// This tiling algorithm supports array data, since the type always refers to
// the element type of the array. Single objects are considered the same as
// single-element arrays.

	for work.cycles.Load() == n+1 && !isSweepDone() {
		Gosched()
	}

	// Now we're really done with sweeping, so we can publish the
	// stable heap profile. Only do this if we haven't already hit
	// another mark termination.
	mp := acquirem()
	cycle := work.cycles.Load()
	if cycle == n+1 || (gcphase == _GCmark && cycle == n+2) {
		mProf_PostSweep()
	}
	releasem(mp)
}

	gcController.lastHeapGoal = c.heapGoal()

	// Compute the duration of time for which assists were turned on.
	assistDuration := now - c.markStartTime

	// Assume background mark hit its utilization goal.
	utilization := gcBackgroundUtilization
	// Add assist utilization; avoid divide by zero.
	if assistDuration > 0 {
		utilization += float64(c.assistTime.Load()) / float64(assistDuration*int64(procs))