[vectorIntrinsics] RFR: 8263149: Adding some algorithms optimized by Vector API into JMH benc… [v2]

[Joshua Zhu]

On Wed, 10 Mar 2021 06:57:32 GMT, Xiaohong Gong <xgong at openjdk.org> wrote:

>> Wang Zhuo has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
>> 
>>   8263149: Adding some algorithms optimized by Vector API into JMH benchmarks
>>   
>>   Co-authored-by: Joshua Zhu <jzhu at openjdk.org>
>
> test/jdk/jdk/incubator/vector/benchmark/src/main/java/benchmark/bigdata/ValueRangeCheckAndCastL2I.java line 93:
> 
>> 91:     for (int i = 0; i < longArray.length; i += LONG_SPECIES.length()) {
>> 92:       LongVector av = LongVector.fromArray(LONG_SPECIES, longArray, i);
>> 93:       if (av.compare(VectorOperators.GE, min).allTrue() && av.compare(VectorOperators.LE, max).allTrue()) {
> 
> Regarding to the performance, is it better to use `av.compare(VectorOperators.GE, min).and(compare(VectorOperators.LE, max)).allTrue()` here?

Yes. Your suggestion performs better than my previous version. Thanks!

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PR: https://git.openjdk.java.net/panama-vector/pull/45