RFR: 8308776: [AArch64] Math.log is 10% slower than StrictMath.log on aarch64 [v2]

[Dhamoder Nalla]

On Tue, 18 Nov 2025 21:18:55 GMT, Joe Darcy <darcy at openjdk.org> wrote:

>> Dhamoder Nalla has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   [AArch64] Math.log is 10% slower than StrictMath.log on aarch64
>
> test/jdk/java/lang/Math/TestLogMonotonicity.java line 29:
> 
>> 27:  * @run main TestLogMonotonicity
>> 28:  */
>> 29: public class TestLogMonotonicity {
> 
> So the test is checking for monotonicity over value that are 2X the previous value?
> 
> That is a very weak test.
> 
> In other math library regression tests we test for monotonicity on successive values.

Thanks @jddarcy, Updated the existing LogTests.java with similar monotonicity test in Log1pTests.java.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28306#discussion_r2562205428