RFR: 8302369: Reduce the stack size of the C1 compiler [v2]

[Vladimir Kozlov]

On Thu, 16 Feb 2023 17:46:54 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> SUN Guoyun has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8302369: Reduce the stack size of the C1 compiler
>
> I tested only 64-bit fastdebug VM.
> MacMini i7 12 threads (avx2), 32Gb
> Windows server 2019, AMD Epyc VM  12 threads (sse4), 24.00 GB
> SA jtreg tests were run with additional options: `-concurrency:6 -timeoutFactor:4 -vmoption:-XX:MaxRAMPercentage=4.16667`

> @vnkozlov Can you help me test the new commit 2 ([4125dbb](https://github.com/openjdk/jdk/commit/4125dbb5b22865ac84cb54dd440df350bd62a438)) again? I've tested tier1 tier2 locally for X86_64 and AArch64 and tier1-3 for LoongArch64, and the results are all PASSED (some tests failed but appear to be unrelated to the patch).

I submitted new testing. But you need approval from @dean-long

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PR: https://git.openjdk.org/jdk/pull/12548