Re: [qemu-s390x] [Qemu-devel] [PATCH v1 3/5] s390x/tcg: Implement VECTOR FIND ELEMENT NOT EQUAL

[Richard Henderson]

On 5/15/19 1:31 PM, David Hildenbrand wrote:
> Similar to VECTOR FIND ELEMENT EQUAL, however the search also stops on
> any inequality. A match for inequality seems to have precedence over
> a match for zero, because both elements have to be zero.
> 
> Signed-off-by: David Hildenbrand <address@hidden>
> ---
>  target/s390x/helper.h            |  6 ++++
>  target/s390x/insn-data.def       |  2 ++
>  target/s390x/translate_vx.inc.c  | 31 +++++++++++++++++++
>  target/s390x/vec_string_helper.c | 53 ++++++++++++++++++++++++++++++++
>  4 files changed, 92 insertions(+)

Like the previous, only with

static inline uint64_t nonzero_search(uint64_t a, uint64_t m)
{
    return (((a & m) + m) | a) & ~m;
}

for the inequality.


r~