hahnjo wrote:
> > > I tried applying this patch to ROOT/Cling and it fails to build because
> > > something is of the opinion that `std::is_integral<int>::value` is not
> > > true. I don't have time right now to investigate further, but since this
> > > is the only change I did it is highly likely that it's caused by this...
> >
> >
> > In that case we need to understand how this patch differs from the one I
> > pasted in phabricator since the one there works for that case I assume.
>
> I had a guess. `{ClassTemplateDecl, VarTemplateDecl,
> FunctionTemplateDecl}::specializations()` will iterate all the
> specializations. However, after this patch, there are maybe some
> specializations not loaded at the time of invocation. Then during the process
> of iterating `specializations()`, it may require to complete the redecl chain
> to trigger the process of loading specializations. Then boom!
This is also the case with https://reviews.llvm.org/D41416 and we have
machinery to deal with that (including https://reviews.llvm.org/D154328)
https://github.com/llvm/llvm-project/pull/76774
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