[Vm-dev] [VM-dev] Does doesNotUnderstand:/cannotInterprer: jitted?
Denis Kudriashov
dionisiydk at gmail.com
Mon Nov 21 09:29:21 UTC 2016
2016-11-21 10:21 GMT+01:00 Clément Bera <bera.clement at gmail.com>:
>
>> 2016-11-21 10:05 GMT+01:00 Clément Bera <bera.clement at gmail.com>:
>>
>>> Hi.
>>>
>>> #doesNotUnderstand: is added to the PIC. It's a special case handled
>>> for performance. DNUs are slower than normal sends but the overhead is
>>> acceptable.
>>
>>
>> But when it is in PIC it is not anymore slower?
>>
>
> Well the DNU requires to create the message argument so it's always slower
> than normal call.
>
Ah, yes and it means that DNU always generates garbage.
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