RFR: 8320448: Accelerate IndexOf using AVX2 [v41]

[Scott Gibbons]

On Sat, 25 May 2024 06:33:51 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Scott Gibbons has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix test; review comments
>
> test/jdk/java/lang/StringBuffer/IndexOf.java line 47:
> 
>> 45: public class IndexOf {
>> 46: 
>> 47:   static Random generator = new Random();
> 
> @RogerRiggs Would you have cycles to look at Scott's changes to this test? I suspect it will need to be re-structured, re-formatted, and commented to get into maintainable shape.

I am going to revert my changes to this file as the test `jdk/java/lang/String/IndexOf.java` covers the code better.

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PR Review Comment: https://git.openjdk.org/jdk/pull/16753#discussion_r1617560447