RFR: JDK-8329257: AIX: Switch HOTSPOT_TOOLCHAIN_TYPE from xlc to gcc [v3]

[Kim Barrett]

On Tue, 2 Apr 2024 17:01:07 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> https://bugs.openjdk.org/browse/JDK-8329546 - I can take this if nobody else grabs it soon.
>
> I'm waiting for a bunch of tests to complete, so decided to just take that issue.

https://github.com/openjdk/jdk/pull/18586

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PR Review Comment: https://git.openjdk.org/jdk/pull/18536#discussion_r1548549705