[erlang-patches] Optimize handling of local fun variables in v3_kernel
Anthony Ramine
n.oxyde@REDACTED
Sun Jan 26 16:10:38 CET 2014
Kostis, ping?
--
Anthony Ramine
Le 14 oct. 2013 à 13:07, Anthony Ramine <n.oxyde@REDACTED> a écrit :
> Err,
>
> t2() -> fun identity/1.
>
> --
> Anthony Ramine
>
>> Le 14 oct. 2013 à 12:45, Anthony Ramine <n.oxyde@REDACTED> a écrit :
>>
>> Hello Kostis,
>>
>> To reproduce the crash, compile the following module with +native with my rm-reverse-eta-conversion branch:
>>
>> -module(t).
>> -export([t1/0,t2/0]).
>>
>> t1() -> fun identity/1.
>> t2() -> fun identity/2.
>>
>> identity(X) -> X.
>>
>> Loading this module compiled with HiPE on my branch will make HiPE crash in patch_funentries. Commenting the t2/0 function out makes the crash disappear. That shows that the cause of the crash is multiple references to the same local function.
>>
>> Regards,
>>
>> --
>> Anthony Ramine
>>
>>> Le 8 oct. 2013 à 20:12, Kostis Sagonas <kostis@REDACTED> a écrit :
>>>
>>> Anyway, I am not sure how to contribute here and it will take me quite some time to investigate this from scratch, time which sadly I do not have these days. I can spend some time on this if I feel like hacking again one of the nights to come, but only if you minimize this and send me a self-contained module that shows the problem when you generate BEAM code with the changed compiler, but not with the vanilla.
>>
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