RFR: 8345269: Fix -Wzero-as-null-pointer-constant warnings in ppc code [v3]

[Kim Barrett]

On Wed, 11 Dec 2024 17:49:27 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Kim Barrett has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
>> 
>>  - Merge branch 'master' into fix-ppc-zero-null
>>  - Merge branch 'master' into fix-ppc-zero-null
>>  - Merge branch 'master' into fix-ppc-zero-null
>>  - simple ppc fixes
>>  - remove unneeded Address ctors
>
> Marked as reviewed by mbaesken (Reviewer).

Thanks for reviews @MBaesken and @TheRealMDoerr

-------------

PR Comment: https://git.openjdk.org/jdk/pull/22466#issuecomment-2536929011