[9] RFR (XXS): 8062258: compiler/debug/TraceIterativeGVN.java segfaults in trace_PhaseIterGVN

Vladimir Ivanov vladimir.x.ivanov at oracle.com
Thu Oct 30 17:26:40 UTC 2014


Vladimir, do you suggest to simply skip printing info about dead nodes 
w/ -XX:+TraceIterativeGVN?

Best regards,
Vladimir Ivanov

On 10/29/14, 7:00 PM, Vladimir Kozlov wrote:
> I would suggest to dead node check in trace_PhaseIterGVN() instead of
> in  MemNode::adr_type().
> So the fix for your JDK-8061995 should fix this problem too.
>
> Thanks,
> Vladimir
>
> On 10/29/14 4:57 AM, Vladimir Ivanov wrote:
>> http://cr.openjdk.java.net/~vlivanov/8062258/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8062258
>>
>> Trivial fix to avoid NULL dereference w/ -XX:+TraceIterativeGVN while
>> querying adr_type() on dead MemNode.
>>
>> Testing: failing test.
>>
>> Best regards,
>> Vladimir Ivanov


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