[PATCH] libgccjit: Add function to set the initial value of a global variable [PR96089]

Antoni Boucher bouanto@zoho.com
Tue Nov 23 02:01:25 GMT 2021


Hi David!

I updated the patch to allow initializing global variables with values
of type array or struct.

I also fixed the bug I was talking in my previous message by using the
following workaround: I create a new memento for the action of setting
the global variable initial value and as such, both the global variable
and the initial value are bound to exist when setting the global
variable initializer.
Is that workaround good enough?
(I guess that workaround could be used to fix the same issue that we
have for inline assembly.)

Thanks for the review!

Le vendredi 11 juin 2021 à 16:44 -0400, Antoni Boucher a écrit :
> David: this one wasn't reviewed yet by you, so you can review it.
> 
> Le jeudi 20 mai 2021 à 21:27 -0400, Antoni Boucher a écrit :
> > Hi.
> > 
> > I made this patch to set an arbitrary value to a global variable.
> > 
> > This patch suffers from the same issue as inline assembly
> > (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100380), i.e. it
> > segfaults if the `rvalue` is created after the global variable.
> > It seems to be a design issue so I'm not sure what would be the fix
> > for
> > it and having it fixed would allow me to test this new function
> > much
> > more and see if things are missing (i.e. it might require a way to
> > create a constant struct).
> > See the link above for an explanation of this issue.
> > 
> > Thanks for the review.
> 

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