RFR: 8283667: [vectorapi] Vectorization for masked load with IOOBE with predicate feature [v3]

[Xiaohong Gong]

On Fri, 6 May 2022 14:59:26 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

>> Make sense! Thanks for the explanation!
>
> Doh! of course. This is not the first and will not be the last time i get caught out by the 2-slot requirement.
> It may be useful to do this:
> 
> Node* mask_arg = is_store ? argument(8) : argument(7);

Yes, the mask argument is got like:

 Node* mask = unbox_vector(is_store ? argument(8) : argument(7), mbox_type, elem_bt, num_elem);

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PR: https://git.openjdk.java.net/jdk/pull/8035