[cfe-commits] [PATCH] Abstract v-table generation into the CGCXXABI interface

Timur Iskhodzhanov timurrrr at google.com
Thu Jun 28 17:14:58 PDT 2012


On Thu, Jun 28, 2012 at 5:11 PM, John McCall <rjmccall at apple.com> wrote:
> On Jun 28, 2012, at 4:08 PM, Timur Iskhodzhanov wrote:
>> FTR, this patch has regressed:
>> http://llvm.org/bugs/show_bug.cgi?id=13231
>>
>> Now I can't build non-trivial C++ code anymore.
>> [I had local patches to work OK on some files and was planning to send
>> a few things for review but now I'm literally stuck at ~r158985]
>
> There are going to be growing pains like this — I do understand your use
> case of "I'd just like as much to work as possible, even if it's not using the
> right logic for MSVC at all", but as long as we have multiple people working
> on the ABI, that's not really supportable.
>
> I think Charles is working on patches to actually implement this, though,
> so it might not be too long.  In the meantime, I think you should either
> bite the bullet and propose a patch to add a -cc1 flag to opt in to
> inconsistent ABI generation (understanding that that means you'll get
> miscompiled from time to time), or just locally make the Microsoft
> implementation call the Itanium implementation.
I totally understand this.
It would be good if refactoring didn't break already-almost-working
stuff though or at least there was a clear estimate of when it's going
to be fixed :)




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