RFR: 8248188: Add IntrinsicCandidate and API for Base64 decoding [v2]

[CoreyAshford]

On Wed, 7 Oct 2020 17:19:50 GMT, CoreyAshford <github.com+51754783+CoreyAshford at openjdk.org> wrote:

>> src/hotspot/share/opto/library_call.cpp line 310:
>> 
>>> 308:   bool inline_base64_decodeBlock();
>>> 309:   bool inline_digestBase_implCompress(vmIntrinsics::ID id);
>>> 310:   bool inline_sha_implCompress(vmIntrinsics::ID id);
>> 
>> Why is that in this change?
>
> Good catch!  I'm not sure what happened there.  Will investigate.

This seems to be a mistake I made during a rebase with a conflict. Will fix.

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PR: https://git.openjdk.java.net/jdk/pull/293