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cat <<EOF
static inline bool
${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
{
	${int} r, o = *old;
	r = ${atomic}_cmpxchg${order}(v, o, new);
	if (unlikely(r != o))
		*old = r;
	return likely(r == o);
}
EOF