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// run
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// 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); {
atomic.SwapUint32(&count, 1)
_ = buffer[i]
i++
i++
}
}