RFR: 8343700: ceil_log2 should not loop endlessly [v3]

[Aleksey Shipilev]

On Wed, 13 Nov 2024 19:55:16 GMT, Sonia Zaldana Calles <szaldana at openjdk.org> wrote:

>> Hi all, 
>> 
>> This PR addresses [8343700](https://bugs.openjdk.org/browse/JDK-8343700) where ceil_log2 looped endlessly if the input value has the highest bit set. 
>> 
>> I also dealt with the case where we try to find ceil_log2(1) which would've returned 1 as opposed to 0. 
>> 
>> Cheers, 
>> Sonia
>
> Sonia Zaldana Calles has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Starting ret at 0

Marked as reviewed by shade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/22074#pullrequestreview-2434282264