RFR: 8366017: Extend the set of inputs handled by fast paths in FloatingDecimal [v6]

[Raffaello Giulietti]

On Wed, 29 Oct 2025 04:16:37 GMT, Joe Darcy <darcy at openjdk.org> wrote:

>> Raffaello Giulietti has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 36 commits:
>> 
>>  - Merge branch 'master' into 8366017
>>  - Added test for all float->String->float roundtrips.
>>  - Merge branch 'master' into 8366017
>>  - Added tests to exercise fast paths.
>>  - Fix a rare bug.
>>  - Merge branch 'master' into 8366017
>>  - More complete benchmarks.
>>  - JMH benchmarks.
>>  - Adapted tests to more restricted access.
>>  - Merge branch 'master' into 8366017
>>  - ... and 26 more: https://git.openjdk.org/jdk/compare/96259936...c3485864
>
> test/jdk/java/lang/Double/ParseDouble.java line 765:
> 
>> 763:     private static void testFastPaths() {
>> 764:         /* Exercises the fast paths in jdk.internal.math.FloatingDecimal. */
>> 765:         check("1", 1.0);
> 
> Something to consider: specify the double values in hex literals -- this would exercise entirely different code paths than the decimal ones.

Good point, I fully agree.
Updating the test to use hexadecimals...

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/26990#discussion_r2472575652