[PATCH] D33713: [ELF] - Do not crash when proccessing absolute symbols during GC.

[Rafael Avila de Espindola via llvm-commits]

George Rimar via Phabricator <reviews at reviews.llvm.org> writes:

> Index: ELF/MarkLive.cpp
> ===================================================================
> --- ELF/MarkLive.cpp
> +++ ELF/MarkLive.cpp
> @@ -220,7 +220,8 @@
>  
>    auto MarkSymbol = [&](const SymbolBody *Sym) {
>      if (auto *D = dyn_cast_or_null<DefinedRegular>(Sym))
> -      Enqueue({cast<InputSectionBase>(D->Section), D->Value});
> +      if (auto *IS = dyn_cast_or_null<InputSectionBase>(D->Section))
> +        Enqueue({IS, D->Value});

You can use cast_or_null instead of dyn_cast_or_null, no? LGTM with
that.

Cheers,
Rafeal