RFR: 8253690: [PPC64] Use flag kind diagnostic for platform specific flags

Wed Sep 30 08:57:50 UTC 2020

On Wed, 30 Sep 2020 08:44:58 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

>> src/hotspot/cpu/ppc/globals_ppc.hpp line 116:
>> 
>>> 114:                                                                             \
>>> 115:   /* special instructions */                                                \
>>> 116:   product(bool, SuperwordUseVSX, false,                                     \
>> 
>> Why leave this one out?
>
> SuperwordUseVSX switches usage of vector registers in C2. It's more fundamental than simple instruction usage switches.
> It's comparable to UseAVX on x86 which is product, too. So I prefer keeping it product for now. Are you ok with it?

Sure, just curious. Leave it up to you.

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PR: https://git.openjdk.java.net/jdk/pull/413