RFR: 8257423: [PPC64] Support -XX:-UseInlineCaches

[Martin Doerr]

On Fri, 4 Dec 2020 10:45:33 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

>> The JVM currently runs into Unimplemented() when using -XX:-UseInlineCaches in C2 code (postalloc_expand_java_dynamic_call_sched).
>> I'd like to enable the existing code in postalloc_expand_java_dynamic_call_sched and fix MachCallDynamicJavaNode::ret_addr_offset() and MacroAssembler::instr_size_for_decode_klass_not_null().
>> I suggest to use scratch emit to determine the size, because there are too many cases and emitting it once is fast.
>
> Looks good to me.
> 
> Thanks, Richard.

Thanks a lot for the reviews!

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PR: https://git.openjdk.java.net/jdk/pull/1521