RFR: 8285868: x86_64 intrinsics for floating point methods isNaN, isFinite and isInfinite [v6]

[Srinivas Vamsi Parasa]

On Wed, 18 May 2022 06:17:37 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Srinivas Vamsi Parasa has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   use 0x1 to be simpler
>
> test/micro/org/openjdk/bench/java/lang/DoubleClassCheck.java line 70:
> 
>> 68:     public void testIsFinite() {
>> 69:         for (int i = 0; i < BUFFER_SIZE; i++) {
>> 70:             outputs[i] = Double.isFinite(inputs[i]) ? false : true;
> 
> Any specific reason to explicitly add conditional check to return true/false when isFinite returns bool value ?

Initially, it was returning a boolean value and storing it in the output buffer. Vladimir suggested that the realword usecase of these methods is in conditions. Hence, the benchmarks were modified.

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PR: https://git.openjdk.java.net/jdk/pull/8459