RFR: 8257815: Replace global log2 functions with efficient implementations [v11]

[Martin Doerr]

On Wed, 16 Dec 2020 07:19:53 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Hi Claes, sorry, I won't get to this before the holidays. @TheRealMDoerr maybe?

I've put it into our nightly testing again. We should see results tomorrow if everything works.

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