RFR: 8327652: S390x: Implements SLP support [v4]

[Martin Doerr]

On Tue, 19 Mar 2024 13:38:33 GMT, Sidraya Jayagond <sjayagond at openjdk.org> wrote:

>> This PR Adds SIMD support on s390x.
>
> Sidraya Jayagond has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Use Op_VecX instead of Op_RegF
>   
>   Signed-off-by: Sidraya <sidraya.jayagond at ibm.com>

src/hotspot/cpu/s390/s390.ad line 7473:

> 7471: // Sqrt float precision
> 7472: instruct sqrtF_reg(regF dst, regF src) %{
> 7473:   match(Set dst (SqrtF src));

Did the old code cause problems? Required nodes not matched? Maybe this should get fixed in a separate PR for backports?

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PR Review Comment: https://git.openjdk.org/jdk/pull/18162#discussion_r1530602580