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Re: [Xen-devel] [PATCH v2 1/3] x86emul: reduce CMPXCHG{8, 16}B footprint and casting



On 15/12/16 09:39, Jan Beulich wrote:
> Re-use an existing stack variable (reducing stack footprint, which also
> results in smaller code due to some stack accesses no longer needing a
> 32-bit displacement), at once using a union instead of casts. Also
> switch to rex_prefix based conditionals instead of op_bytes ones.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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