RFR: 8311630: [s390] Implementation of Foreign Function & Memory API (Preview) [v2]

[sid8606]

On Fri, 7 Jul 2023 12:24:10 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> sid8606 has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address Amit's review comments
>
> src/hotspot/cpu/s390/upcallLinker_s390.cpp line 243:
> 
>> 241:         case T_CHAR:
>> 242:         case T_INT:
>> 243:           __ z_lgfr(Z_RET, Z_RET); // Clear garbage in high half.
> 
> Same as PPC here; this should really be done on the Java side. (See: https://github.com/openjdk/jdk/pull/12708#issuecomment-1440433079 and related discussion)

I plan to fix it later once done with experiments with this.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14801#discussion_r1258555188