[crac] RFR: GLIBC->CPU flags optimization

[Jan Kratochvil]

On Fri, 10 Nov 2023 10:34:38 GMT, Jan Kratochvil <jkratochvil at openjdk.org> wrote:

> Reduce the number of `GLIBC_*` flags when it can use existing `CPU_*` flags.
> This patch was split out of PR #136.
> 
> 
>  2 files changed, 9 insertions(+), 17 deletions(-)
> 
> So I find it clearly an improvement.
> As an explanation: I created the GLIBC_* namespace in addition to the existing upstream CPU_* namespace. And some my additions in GLIBC_* namespace have now appeared by https://github.com/openjdk/jdk/commit/d50b6eb342e9ec96d1a01dafc317e00725dc84c0 also in the upstream CPU_* namespace. They were missing in the CPU_* namespace when I was implementing it. So we can remove the duplicity from GLIBC_* namespace.

ping, it blocks #112

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PR Comment: https://git.openjdk.org/crac/pull/139#issuecomment-1847023263