[Tarantool-patches] [PATCH luajit 1/2] Fix maxslots when recording BC_VARG.

[Sergey Kaplun]

Hi, Maxim!
Thanks for the review!
Fixed your comments! Branch is force-pushed.

On 14.07.23, Maxim Kokryashkin wrote:
> 
> Hi!
> Thanks for the patch!
> LGTM, except for a few nits regarding the commit message.
>  
> > 
> >>From: Mike Pall <mike>
> >>
> >>Analyzed by Sergey Kaplun.
> >>
> >>(cherry-picked from commit 94ada59628dd6ce5d6d2dad1d35a68ad30127f53)
> >>
> >>While recording BC_VARG `J->maxslot` isn't shrunk to the effective stack
> >Typo: s/shrunk/shrinking

I meant the third form shrink/shrank/shrunk here. Ignoring.

> >>top. This leads to dead value stored in the JIT slots and the following
> >Typo: s/value/values/

Fixed.

> >>assertion failure for these slots check in `rec_check_slots()`. Note,
> >>that `rec_varg()` modifies `maxslot` only under the condition that
> >>`maxslot` should be increased, but the dead values are left for the
> >>opposite case.
> >>
> >>This patch removes the condition inside `rec_varg()` only for the case
> >>when varargs are not defined on trace (`framedepth` is 0), but the
> >>similar issue still occurs for the case when vararg are defined on the
> >Typo: s/vararg/varagrs/
> >>trace.

Fixed.

> >>
> >>Sergey Kaplun:
> >>* added the description and the test for the problem
> >>
> >>Part of tarantool/tarantool#8825

<snipped>

> >--
> >Best regards,
> >Maxim Kokryashkin

-- 
Best regards,
Sergey Kaplun