RFR: 8329032: C2 compiler register allocation support for APX EGPRs [v3]

[Jatin Bhateja]

On Mon, 17 Jun 2024 16:29:27 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   jvmci test failures fixes
>
> src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp line 3375:
> 
>> 3373:   ResourceMark rm;
>> 3374: 
>> 3375:   CodeBuffer buffer(name, 1752, 512);
> 
> What cause the need to such increase of size?

Stub makes multiple save restoration calls, additional buffer size needed to accommodate to move EGPRs  from / to stack. Further constraining the size.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19042#discussion_r1643449420