RFR: JDK-8316708: Augment WorstCaseTests with more cases [v2]

[Joe Darcy]

On Fri, 22 Sep 2023 15:33:11 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

>> Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:
>> 
>>  - Start adding worst-case inputs for other math libraries.
>>  - Merge branch 'master' into JDK-8316708
>>  - Merge branch 'master' into JDK-8316708
>>  - Fix typo found in code review.
>>  - Add stated error bounds.
>>  - JDK-8316708: Augment WorstCaseTests with more cases
>
> test/jdk/java/lang/Math/WorstCaseTests.java line 293:
> 
>> 291: 
>> 292:             // Worst-case observed error
>> 293:             {-0x1.0068b067c6feep-1,     +0x1.0c335e2f0727p1},
> 
> Similar considerations as for asin above.
> The "expected" value should be `0x1.0c335e2f0726fp1`.

For the new worst-case conditions I've pushed, if there is a "// check" comment, the Math and StrictMath return values were the same and I did not yet check which exact floating-point value should be used as the reference point.

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PR Review Comment: https://git.openjdk.org/jdk/pull/15879#discussion_r1501123440