RFR: 8158639: C2 compilation fails with SIGSEGV

[Jamsheed C m]

Hi Vladimir,

revised webrev with comments: 
http://cr.openjdk.java.net/~jcm/8158639/webrev.01/index.html

i had updated pit link yesterday night itself, but somehow it didn't 
work. updated it now again.

Best Regards,

Jamsheed


On 8/22/2016 11:36 PM, Vladimir Kozlov wrote:
> Changes seems fine. Please, add comments in changes.
>
> Jamsheed, did you run RBT? I don't see a link in the bug report.
>
> Thanks,
> Vladimir
>
> On 8/22/16 5:28 AM, Jamsheed C m wrote:
>> Hi,
>>
>> bug id:https://bugs.openjdk.java.net/browse/JDK-8158639 
>> <https://bugs.openjdk.java.net/browse/JDK-8158639>
>> webrev:http://cr.openjdk.java.net/~jcm/8158639/webrev.00/ 
>> <http://cr.openjdk.java.net/%7Ejcm/8158639/webrev.00/>
>>
>> Request for review.
>>
>> Description
>> _linkTo* adapter elimination  in C2 cause wrong jvms  for null checks 
>> at callsite. which makes MemberName missing for trap and reexecute at 
>> these sites.
>>
>> and in reported bug, this makes wrong data getting loaded in profile 
>> data for trap and reexecute.and later getting crash at recompilation.
>>
>> Fix: fix the jvms based on _linkTo*(Declared method signature ) at 
>> these trap sites.
>>
>>
>> Best Regards,
>>
>> Jamsheed
>>
>>
>>