Problems with vdefault/vwithfield

Frederic Parain frederic.parain at oracle.com
Mon Feb 6 14:35:25 UTC 2017


I'll look at the issue today.

Fred

On 02/06/2017 08:00 AM, Tobias Hartmann wrote:
> Hi,
>
> Mr. Simms pointed out that in GenerateOopMap::interp1() me may have to pop arguments for vwithdefault. But then we would need to do the same with vnew. I'm not too familiar with that code, Fred, could you have a look?
>
> Thanks,
> Tobias
>
> On 06.02.2017 13:39, Tobias Hartmann wrote:
>> Hi,
>>
>> please review the following fix:
>> http://cr.openjdk.java.net/~thartmann/valhalla/vt_prototype/webrev.06/
>>
>> We hit a ShouldNotReachHere in GenerateOopMap::interp1() with "unexpected opcode: 215" because the _vwithfield bytecode is not known. I fixed the same problem in MethodLiveness::BasicBlock::compute_gen_kill_single() and BCEscapeAnalyzer::iterate_one_block() and modified the tests to trigger this.
>>
>> Thanks,
>> Tobias
>>


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