RFR: 8134389: Crash in HotSpot with jvm.dll+0x42b48 ciObjectFactory::create_new_metadata

[Jamsheed C m]

i made some changes to my fix. webrev is updated in place.

pit results with latest modification updated in bug(not still completed)

Best Regards,

Jamsheed


On 9/10/2016 3:53 AM, Jamsheed C m wrote:
>
> adding a little more description as per my understanding
>
> This issue can happen only for compiled lforms not inlined case
>
> there are two scenarios.
> 1) no compiled lforms inlined
> 2) some compiled lforms are inlined or  final method is not inlined 
> (linkTo* not inlined)..    (i.e partially inlined)
>
> in all these cases *Invoke instruction* will be *return Value*. and 
> will have erased type.
> so we reify return type either by type casting(for partially inlined 
> case) or by directly pulling from callsite MT.
>
> Best Regards,
>
> Jamsheed
>
>
> On 9/8/2016 3:26 PM, Jamsheed C m wrote:
>> Hi All,
>>
>> bugid: https://bugs.openjdk.java.net/browse/JDK-8134389
>>
>> webrev: http://cr.openjdk.java.net/~jcm/8134389/webrev.00/
>>
>> return type information is not available in lforms, this causes 
>> contradictions in operation like  store indexed. mh _linkTo* site arg 
>> type casting. etc..
>>
>> fix: TypeCast to declared return type at lform return.
>>
>> Best Regards,
>>
>> Jamsheed
>>
>

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