func runtime/internal/atomic.Xchg

4 uses

	runtime/internal/atomic (current package)
		atomic_amd64.go#L60: func Xchg(ptr *uint32, new uint32) uint32

	runtime
		mstats.go#L953: 	atomic.Xchg(&m.gen, (currGen+1)%3)
		proc.go#L1877: 	c := atomic.Xchg(&extraMWaiters, 0)
		sigqueue.go#L190: 			sig.recv[i] = atomic.Xchg(&sig.mask[i], 0)

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