RFR: 8343724: [PPC64] Disallow OptoScheduling [v2]

[Richard Reingruber]

On Thu, 7 Nov 2024 13:23:19 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> Force off OptoScheduling for PPC64. It should be properly maintained before allowing users to switch it on. It's probably not important for this platform. Also see JBS issue for motivation.
>
> Martin Doerr has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Move flag configuration to VM_Version::initialize(). Add EntryAlignment guarantee like on other platforms.

Looks good.
Cheers, Richard.

src/hotspot/cpu/ppc/vm_version_ppc.cpp line 174:

> 172: 
> 173:   // Power7 and later.
> 174:   if (PowerArchitecturePPC64 > 6) {

Settings that depend on `PowerArchitecturePPC64` seem to be ordered. You might want to keep it like that.

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Marked as reviewed by rrich (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21935#pullrequestreview-2420983914
PR Review Comment: https://git.openjdk.org/jdk/pull/21935#discussion_r1832682141