func atomics() {
	_ = atomic.LoadUint32(&x)             // ERROR "intrinsic substitution for LoadUint32"
	atomic.StoreUint32(&x, 1)             // ERROR "intrinsic substitution for StoreUint32"
	atomic.AddUint32(&x, 1)               // ERROR "intrinsic substitution for AddUint32"
	atomic.SwapUint32(&x, 1)              // ERROR "intrinsic substitution for SwapUint32"
	atomic.CompareAndSwapUint32(&x, 1, 2) // ERROR "intrinsic substitution for CompareAndSwapUint32"

			dummy()
		}
	}()
	// Also start one with a frameless function.
	// This is an especially interesting case for
	// LR machines.
	go func() {
		atomic.AddUint32(&ready2, 1)
		frameless()
	}()
	// Also test empty infinite loop.
	go func() {
		atomic.AddUint32(&ready2, 1)
		for {
		}
	}()

	// Wait for the goroutine to stop passing through sync
	// safe-points.

// issue 16985: intrinsified AMD64 atomic ops should clobber flags

package main

import "sync/atomic"

var count uint32

func main() {
	buffer := []byte("T")
	for i := 0; i < len(buffer); {
		atomic.AddUint32(&count, 1)
		_ = buffer[i]
		i++
		i++
	}

	for i := 0; i < len(buffer); {
		atomic.CompareAndSwapUint32(&count, 0, 1)
		_ = buffer[i]
		i++
		i++
	}

	for i := 0; i < len(buffer); {

	if err != nil {
		t.Fatalf("failed to mmap memory: %v", err)
	}
	defer syscall.Munmap(data)
	p := (*uint32)(unsafe.Pointer(&data[0]))
	atomic.AddUint32(p, 1)
	(*p)++
	if *p != 2 {
		t.Fatalf("data[0] = %v, expect 2", *p)
	}

TEXT ·CompareAndSwapInt64(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Cas64(SB)

TEXT ·CompareAndSwapUint64(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Cas64(SB)

TEXT ·AddInt32(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Xadd(SB)

TEXT ·AddUint32(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Xadd(SB)

TEXT ·AddUintptr(SB),NOSPLIT,$0
	JMP	internal∕runtime∕atomic·Xadduintptr(SB)

TEXT ·AddInt64(SB),NOSPLIT,$0

		for i, right := range n.Rhs {
			call, ok := right.(*ast.CallExpr)
			if !ok {
				continue
			}
			fn := typeutil.StaticCallee(pass.TypesInfo, call)
			if analysisutil.IsFunctionNamed(fn, "sync/atomic", "AddInt32", "AddInt64", "AddUint32", "AddUint64", "AddUintptr") {
				checkAtomicAddAssignment(pass, n.Lhs[i], call)
			}
		}
	})
	return nil, nil
}

// checkAtomicAddAssignment walks the atomic.Add* method calls checking

	}

	// This should not fault.
	a := (*uint32)(unsafe.Pointer(&b[pagesize-4]))
	atomic.StoreUint32(a, 1)
	if x := atomic.LoadUint32(a); x != 1 {
		t.Fatalf("bad atomic value: %v, want 1", x)
	}
	if x := atomic.AddUint32(a, 1); x != 2 {
		t.Fatalf("bad atomic value: %v, want 2", x)
	}

// indices of servers in c.servers when making queries.
// When the rotate option is enabled, this offset increases.
// Otherwise it is always 0.
func (c *dnsConfig) serverOffset() uint32 {
	if c.rotate {
		return atomic.AddUint32(&c.soffset, 1) - 1 // return 0 to start
	}
	return 0

	tables := []Table{TableMangle, TableFilter, TableNAT}
	go ipt.Monitor(canary, tables, func() {
		if !ensureNoChains(mfe) {
			t.Errorf("reload called while canaries still exist")
		}
		atomic.AddUint32(&reloads, 1)
	}, 100*time.Millisecond, stopCh)

	// Monitor should create canary chains quickly
	if err := waitForChains(mfe, canary, tables); err != nil {
		t.Errorf("failed to create iptables canaries: %v", err)

				t.Errorf("response: got %q; want %q", body, tc.resp)
			}
		})
	}
}

var Sink uint32

func mutexHog1(mu1, mu2 *sync.Mutex, start time.Time, dt time.Duration) {
	atomic.AddUint32(&Sink, 1)
	for time.Since(start) < dt {
		// When using gccgo the loop of mutex operations is
		// not preemptible. This can cause the loop to block a GC,
		// causing the time limits in TestDeltaContentionz to fail.