RFR: 8336274: MutableBigInteger.leftShift(int) optimization [v9]

[fabioromano1]

On Thu, 12 Sep 2024 10:29:24 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

>> fabioromano1 has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Use supported annotation by jtreg in tests
>
> src/java.base/share/classes/java/math/MutableBigInteger.java line 722:
> 
>> 720:      * {@code (resPos <= offset || resPos >= offset + intLen)}.
>> 721:      */
>> 722:     private final void primitiveRightShift(int n, int[] result, int resPos) {
> 
> Suggestion:
> 
>     private final void primitiveRightShift(int n, int[] result, int resOff) {
> 
> or something more similar to "offset".
> 
> Same for the left shift.

What about `resFrom`, like the old `MBI.copyAndshift()` method?

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PR Review Comment: https://git.openjdk.org/jdk/pull/20008#discussion_r1756665227