s390x/tcg: Implement VECTOR PACK *
This is a big one. Luckily we only have a limited set of such nasty instructions. We'll implement all variants with helpers, except when sources and the destination don't overlap for VECTOR PACK. Provide different helpers when the cc is to be modified. We'll return the cc then via env->cc_op. Reviewed-by: NRichard Henderson <richard.henderson@linaro.org> Signed-off-by: NDavid Hildenbrand <david@redhat.com> Message-Id: <20190307121539.12842-20-david@redhat.com> Signed-off-by: NCornelia Huck <cohuck@redhat.com>
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