RFR: 8336274: MutableBigInteger.leftShift(int) optimization [v7]

[fabioromano1]

On Thu, 12 Sep 2024 12:21:59 GMT, Raffaello Giulietti <rgiulietti at openjdk.org> wrote:

>> So, a test should be done for every possible path of computation of `MBI.leftShift()` method...
>
> Looking at the code of `leftShift()` alone, I roughly count a dozen or so paths.
> But if you feel confident that the random tests cover all paths over several executions with high probability and that no corner cases are left out, then they might suffice.

I think that specific test cases for every path would make the code more reliable.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20008#discussion_r1756784216