Winch: implement rmw xchg for x64 #10029
Merged
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implement
xchg
instructions forx64
:i32.atomic.rmw8.xchg_u
i32.atomic.rmw16.xchg_u
i32.atomic.rmw.xchg
i64.atomic.rmw8.xchg_u
i64.atomic.rmw16.xchg_u
i64.atomic.rmw32.xchg_u
i64.atomic.rmw.xchg
#9734