RFR: JDK-8331859 : [PPC64] Remove support for Power7 and older [v12]

[Martin Doerr]

On Tue, 20 May 2025 08:13:01 GMT, Suchismith Roy <sroy at openjdk.org> wrote:

>> src/hotspot/cpu/ppc/vm_version_ppc.cpp line 98:
>> 
>>> 96:   }
>>> 97: 
>>> 98:   if (FLAG_IS_DEFAULT(ConditionalMoveLimit)) {
>> 
>> This is incorrectly replaced. Should get removed. (Causes the mentioned test failures.)
>
> Hi @TheRealMDoerr  You are right..how were you able to trace the test failure to this ? I saw the outputs showed some IR rules non compliance.

The IR tests expect certain nodes which can't be used when you disable conditional moves.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20262#discussion_r2097396408