RFR: 8319716: RISC-V: Add SHA-2 [v7]

[Ludovic Henry]

On Wed, 20 Dec 2023 08:21:14 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

>> Hi, please consider.
>> 
>> Main author is @luhenry, I only fixed some minor things and tested it.
>> 
>> Such as:
>> test/hotspot/jtreg/compiler/intrinsics/sha/
>> test/jdk/java/security/MessageDigest/
>> test/jdk/jdk/security/
>> tier1
>> 
>> And still running some test.
>
> Robbin Ehn has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 11 additional commits since the last revision:
> 
>  - t2 caller saved, no need to push/pop
>  - Merge branch 'master' into sha256
>  - Removed swap file
>  - Index load, other comment
>  - Merge branch 'master' into sha256
>  - Materialize constants address once
>  - Removed template
>  - Flag fixes
>  - Merge branch 'master' into sha256
>  - Share code
>  - ... and 1 more: https://git.openjdk.org/jdk/compare/137b5648...be46fe4f

Marked as reviewed by luhenry (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/16562#pullrequestreview-1792689226