expectedEntries []string
	}{
		{
			name: "normal ipset sync",
			set: &utilipset.IPSet{
				Name: "foo",
			},
			setType:         utilipset.HashIPPort,
			ipv6:            false,
			activeEntries:   []string{"172.17.0.4,tcp:80"},
			currentEntries:  nil,
			expectedEntries: []string{"172.17.0.4,tcp:80"},
		},
		{
			name: "ipset IPv6 sync with no new entries",
			set: &utilipset.IPSet{
				Name: "abz",
			},

go list -deps -test -compiled -f '{{if eq .ImportPath "net [runtime.test]"}}{{printf "%q" .Imports}}{{end}}' runtime

	# Control case: the explicitly-imported package "sync" is a test variant,
	# because "sync" depends on "runtime".
stdout '"sync \[runtime\.test\]"'
! stdout '"sync"'

	# Experiment: the implicitly-imported package "runtime/cgo" is also a test variant,
	# because "runtime/cgo" also depends on "runtime".

// Does not compile.

package main

import "sync"

type T struct {
	int
	sync.Mutex
}

func main() {
	{
		var x, y sync.Mutex
		x = y // ok
		_ = x
	}
	{
		var x, y T
		x = y // ok
		_ = x
	}
	{
		var x, y [2]sync.Mutex
		x = y // ok
		_ = x
	}
	{
		var x, y [2]T
		x = y // ok
		_ = x
	}
	{
		x := sync.Mutex{0, 0} // ERROR "assignment.*Mutex"
		_ = x
	}

pkg sync/atomic, method (*Uintptr) Load() uintptr #50860
pkg sync/atomic, method (*Uintptr) Store(uintptr) #50860
pkg sync/atomic, method (*Uintptr) Swap(uintptr) uintptr #50860
pkg sync/atomic, type Bool struct #50860
pkg sync/atomic, type Int32 struct #50860
pkg sync/atomic, type Int64 struct #50860
pkg sync/atomic, type Pointer[$0 interface{}] struct #50860
pkg sync/atomic, type Uint32 struct #50860

	e := r.Relocs[idx]
	assert(e.Kind == k)
	return e.Idx
}

// Sync decodes a sync marker from the element bitstream and asserts
// that it matches the expected marker.
//
// If EnableSync is false, then Sync is a no-op.
func (r *Decoder) Sync(mWant SyncMarker) {
	if !r.common.sync {
		return
	}

	pos, _ := r.Data.Seek(0, io.SeekCurrent)
	mHave := SyncMarker(r.rawUvarint())

void lockOSThreadC(void) {
	lockOSThreadCallback();
}

void issue7978c(uint32_t *sync) {
	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 0)
		;
	__atomic_add_fetch(sync, 1, __ATOMIC_SEQ_CST);
	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 2)
		;
	issue7978cb();
	__atomic_add_fetch(sync, 1, __ATOMIC_SEQ_CST);
	while(__atomic_load_n(sync, __ATOMIC_SEQ_CST) != 6)
		;
}

void f7665(void) {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package race_test

import (
	"sync"
	"testing"
	"time"
)

func TestRaceMutexRWMutex(t *testing.T) {
	var mu1 sync.Mutex
	var mu2 sync.RWMutex
	var x int16 = 0
	_ = x
	ch := make(chan bool, 2)
	go func() {
		mu1.Lock()
		defer mu1.Unlock()
		x = 1
		ch <- true
	}()
	go func() {

package schema

import (
	"reflect"
	"sync"
)

// sync pools
var (
	normalPool      sync.Map
	poolInitializer = func(reflectType reflect.Type) FieldNewValuePool {
		v, _ := normalPool.LoadOrStore(reflectType, &sync.Pool{
			New: func() interface{} {
				return reflect.New(reflectType).Interface()
			},
		})
		return v.(FieldNewValuePool)
	}

# Ensure go work sync works without any modules in go.work.
go work sync

# Ensure go work sync works even without a go.mod file.
rm go.mod
go work sync

-- go.work --
go 1.18
-- go.mod --
go 1.18

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sync_test

import (
	"internal/testenv"
	"math/rand"
	"reflect"
	"runtime"
	"sync"
	"sync/atomic"
	"testing"
	"testing/quick"
)

type mapOp string

const (
	opLoad             = mapOp("Load")
	opStore            = mapOp("Store")
	opLoadOrStore      = mapOp("LoadOrStore")