RFR: 8301942: java/net/httpclient/DigestEchoClientSSL.java fail with -Xcomp

[SUN Guoyun]

On Wed, 8 Feb 2023 07:31:32 GMT, SUN Guoyun <duke at openjdk.org> wrote:

>> Sounds reasonable to me
>
> @dfuch @DamonFool Could you please sponsor it for me? Thank you.

> @sunny868 Can you summarize what is different about the loongaarch platform and port? Clock speeds, memory organization, memory sizes, etc? 

The basic information of the machine is as follows:
<pre><code class="shell">
Architecture:        loongarch64
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
NUMA node(s):        1
CPU family:          Loongson-64bit
Model name:          Loongson-3A5000-HV
BogoMIPS:            5000.00
L1d cache:           64K
L1i cache:           64K
L2 cache:            256K
L3 cache:            16384K
NUMA node0 CPU(s):   0-3

CPU MHz			: 2500.00

Mem:           16G
</code></pre>
Since LoongArch is still a relatively new architecture, individual instructions are inefficient and not as abundant in instructions, it is lower than aarch64 in terms of compilation performance (compiling a method will take more time) and running performance, so many problems with `-Xcomp` are exposed.

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PR: https://git.openjdk.org/jdk/pull/12449