RFR(XS): 8044090: C1: Old value instead of new one is passed to post-barrier in UnsafeGetAndSetObject

Igor Veresov igor.veresov at oracle.com
Wed May 28 17:44:41 UTC 2014

Thanks Roland and Vladimir!


On May 28, 2014, at 5:04 AM, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:

> Looks good.
> Best regards,
> Vladimir Ivanov
> On 5/28/14 10:38 AM, Igor Veresov wrote:
>> I didn’t notice this before but in UnsafeGetAndSetObject on C1 SPARC we’re passing an old value (which we are getting as a result of the xchg) to the post-barrier, while it really expect the new value (what was stored into memory).
>> Webrev: http://cr.openjdk.java.net/~iveresov/8044090/webrev.00/
>> Thanks!
>> igor

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