RFR: 8307495: Specialize atomic bitset functions for aix-ppc [v6]

[Martin Doerr]

On Fri, 10 Oct 2025 09:17:42 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

>> Do you know what "b" means? We use "r" at other places.
>
> It means base register (R0 not allowed). See PowerPC section in https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html

Ah, so we should use "b" consistently for memory addresses.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27650#discussion_r2419062961