[master] RFR: 8302209: [Lilliput] Optimize fix-anon monitor owner path [v2]

[Roman Kennke]

On Wed, 8 Mar 2023 13:02:47 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp line 822:
>> 
>>> 820:       bind(stub->continuation());
>>> 821: #else
>>> 822:       jcc(Assembler::notEqual, NO_COUNT);
>> 
>> Could you add a comment "// not yet implemented" ? Just to show that there is nothing basic stopping us from doing this for 32-bit, its just not yet done.
>
> I'll just implement it. *shrugs*

In-fact, this is not so easy. See the comment that I added.

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PR: https://git.openjdk.org/lilliput/pull/74