[13] RFR (S): 8218163: C2: Continuous deoptimization w/ Reason_speculate_class_check and Action_none

[Nils Eliasson]

+1

// Nils

On 2019-02-01 06:16, Vladimir Kozlov wrote:
> Looks good.
>
> Thanks,
> Vladimir
>
> On 1/31/19 11:46 AM, Vladimir Ivanov wrote:
>> http://cr.openjdk.java.net/~vlivanov/8218163/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8218163
>>
>> Guarded inlining doesn't take recompilation count into account when 
>> decided whether to issue an uncommon trap or virtual call on slow path.
>> But it may end up as uncommon trap with Action_none when 
>> recompilation count is too high.
>>
>> The fix is to consider both trap & recompilation counts when making 
>> the decision.
>>
>> Testing: hs-precheckin-comp, tier1-5
>>
>> Best regards,
>> Vladimir Ivanov