RFR: 8370370: Add still more cases to WorstCaseTests [v2]

[Raffaello Giulietti]

On Mon, 27 Oct 2025 13:33:53 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

>> Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add more test cases.
>
> test/jdk/java/lang/Math/WorstCaseTests.java line 613:
> 
>> 611: 
>> 612:             // Julia worst-case observed error, 1.9 ulps
>> 613:             // {0x1.8633c654fee2bp-831,    +0x1.fdf25fc26e7cp1023},
> 
> Suggestion:
> 
>             // {-0x1.633c654fee2bap9,    +0x1.fdf25fc26e7cp1023},

@jddarcy Can you check the discrepancy in the argument?

> test/jdk/java/lang/StrictMath/HyperbolicTests.java line 475:
> 
>> 473: 
>> 474:              // Julia worst-case input
>> 475:             {0x1.0108b83c4bbc8p-1,      0x1.dad53a45da5b0p-2},
> 
> Suggestion:
> 
>             {0x1.0108b83c4bbc8p-1,      0x1.dad53a45da5b2p-2},

Here the difference is 2 ulps, maybe worth checking.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27939#discussion_r2466279715
PR Review Comment: https://git.openjdk.org/jdk/pull/27939#discussion_r2466282130