RFR: 8355719: Reduce memory consumption of BigInteger.pow() [v38]

[fabioromano1]

On Mon, 28 Apr 2025 14:27:00 GMT, Chen Liang <liach at openjdk.org> wrote:

> In this case you can still use computePower and remove the branching to check if double arithmetic should be used - you are passing the cache array, so you can control what is the initial values in that array.

Yes, but if I have to check the contents of the cache, then it's useless to remove the branching to check if double arithmetic should be used, since the same check has to be done previously.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24690#discussion_r2063790215