RFR: 8248188: Add IntrinsicCandidate and API for Base64 decoding [v8]

[CoreyAshford]

On Thu, 22 Oct 2020 14:00:49 GMT, Paul Murphy <github.com+12972156+pmur at openjdk.org> wrote:

>> CoreyAshford has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   TestBase64.java: remove jdk.test.lib.Utils from @build which was causing Tier3 failures.
>
> src/hotspot/cpu/ppc/stubGenerator_ppc.cpp line 3817:
> 
>> 3815:         __ xxperm(offsets->to_vsr(), offsetLUT, higher_nibble->to_vsr());
>> 3816: 
>> 3817:         // Find out which elemets are the special case character (isURL ? '/' : '-')
> 
> Trivial nit, s/elemets/elements/

Will fix.

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