RFR: 8257815: Replace global log2 functions with efficient implementations

Tue Dec 8 01:18:12 UTC 2020

On Mon, 7 Dec 2020 12:00:48 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> Naming is hard, but I think the following scheme is reasonable:
> 
>     * log2i: any integral type. 0-hostile

Not yet a review, but the "usual" name is "ilog2".  Do a web search for that and you'll find lots of relevant hits.  I like the short name having the non-zero precondition.  Whether the longer version that tests for zero carry's it's weight is a question.

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PR: https://git.openjdk.java.net/jdk/pull/1663