RFR: JDK-8216437 : PPC64: Add intrinsic for GHASH algorithm [v19]

[Suchismith Roy]

On Mon, 10 Feb 2025 13:17:40 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> We are storing the result in each operation into vState to re use in the next operation using 
>> __ vxor(vH, vH, vState);
>> This is similar to https://github.com/openjdk/jdk/blob/c9cadbd23fb13933b8968f283d27842cd35f8d6f/src/java.base/share/classes/com/sun/crypto/provider/GHASH.java#L118
>
> That doesn't answer "Why not __ vxor(vState, vTmp4, vTmp10);?"

Ok. Yeah that should work. I will try it out to see if any tests fail.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20235#discussion_r1949052318