[aarch64-port-dev ] RFR: aarch64: minor improvements of atomic operations

[Daniel D. Daugherty]

On 11/13/19 4:26 AM, Yangfei (Felix) wrote:
>> -----Original Message-----
>> From: Andrew Haley [mailto:aph at redhat.com]
>> Sent: Wednesday, November 13, 2019 5:00 PM
>> To: Yangfei (Felix) <felix.yang at huawei.com>; Erik Österlund
>> <erik.osterlund at oracle.com>; Andrew Dinn <adinn at redhat.com>;
>> aarch64-port-dev at openjdk.java.net
>> Cc: hotspot-dev at openjdk.java.net
>> Subject: Re: [aarch64-port-dev ] RFR: aarch64: minor improvements of atomic
>> operations
>>
>> On 11/13/19 8:36 AM, Yangfei (Felix) wrote:
>>> Still not strong enough? considering the first of ldxr of the loop may be
>> speculated.
>>
>> Come on now, you must have read the thread on kernel-dev you pointed me to.
>>
> Yes, the cmpxchg case is different here.
> So the v2 patch in my previous mail approved?
> Will create a bug and do necessary testing.

Is there a reason to not reopen this bug:

JDK-8233912 aarch64: minor improvements of atomic operations
https://bugs.openjdk.java.net/browse/JDK-8233912

Dan

>
> Thanks,
> Felix