RFR: 8320448: Accelerate IndexOf using AVX2 [v7]

[Scott Gibbons]

On Mon, 15 Jan 2024 13:30:42 GMT, Andrey Turbanov <aturbanov at openjdk.org> wrote:

>> Scott Gibbons has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 22 commits:
>> 
>>  - Merge branch 'openjdk:master' into indexof
>>  - Merge branch 'openjdk:master' into indexof
>>  - Addressing review comments.
>>  - Fix for JDK-8321599
>>  - Support UU IndexOf
>>  - Only use optimization when EnableX86ECoreOpts is true
>>  - Fix whitespace
>>  - Merge branch 'openjdk:master' into indexof
>>  - Comments; added exhaustive-ish test
>>  - Subtracting 0x10 twice.
>>  - ... and 12 more: https://git.openjdk.org/jdk/compare/8e12053e...3e58d0c2
>
> test/jdk/java/lang/StringBuffer/IndexOf.java line 220:
> 
>> 218: 
>> 219:     for (int x = 0; x < 1000000; x++) {
>> 220:     if(make_new) {
> 
> Suggestion:
> 
>     if (make_new) {

Fixed.

> test/jdk/java/lang/StringBuffer/IndexOf.java line 262:
> 
>> 260:       }
>> 261: 
>> 262:     if(make_new)
> 
> Suggestion:
> 
>     if (make_new)

Fixed.

> test/jdk/java/lang/StringBuffer/IndexOf.java line 295:
> 
>> 293:       }
>> 294: 
>> 295:       if(make_new) testIndex = getRandomIndex(-100, 100);
> 
> Suggestion:
> 
>       if (make_new) testIndex = getRandomIndex(-100, 100);

Fixed.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/16753#discussion_r1610093771
PR Review Comment: https://git.openjdk.org/jdk/pull/16753#discussion_r1610094790
PR Review Comment: https://git.openjdk.org/jdk/pull/16753#discussion_r1610097958