[aarch64-port-dev ] unimplemented code patching in AARCH64

[Andrew Dinn]

On 30/10/2019 20:42, Andrew Haley wrote:
> On 10/29/19 9:33 AM, Jie He (Arm Technology China) wrote:
> . . .
>> I also noticed Andrew Dinn reported
>> the performance issue of case TestLongVect in AARCH64, which caused
>> by too much deoptimization in aarch64, and the similar case
>> TestByteVect doesn't happen because the function test() couldn't
>> enter OSR due to its byte code size (> 8000).  Details pls refer to
>> [1].
> . . .
>> [1]. http://mail.openjdk.java.net/pipermail/aarch64-port-dev/2019-August/007876.html
> 
> This one should be investigated some more. It looks like a bug.
It is on my list of things to do. I think it is strictly a pathological
case behaviour rather than a bug (a fine distinction). However, we
should probably see if we can find a way to avoid the pathology.

regards,


Andrew Dinn
-----------