[debug-early] C++ clones and limbo DIEs

[Jason Merrill]

On 01/28/2015 01:29 PM, Aldy Hernandez wrote:
> +  /* It is rather unfortunate that Cilk creates trees this late
> +     (during gimplification).  However, until this gets fixed,
> +     specially handle emitting DWARF for this new function and
> +     immediately clean up the limbo_die_list where the new function's
> +     DIE will inevitably end up.  */

Why does it go on limbo_die_list at all?

> I noticed dwarf2out's gen_member_die() disallows generation of clones earlier, by design:
>
>      /* Don't include clones in the member list.  */
>      if (DECL_ABSTRACT_ORIGIN (member))
>        continue;
>
> I played around trying to disable this "feature", but my approach ran into various walls, and I decided instead to attack it from the front-end side. The attached patch generates early DIEs for the C++ clones in the C++ parser. I'd be (un)happy to revisit the dwarf2out approach if it's deemed more appropriate.

I'd still like to understand why disabling this doesn't work; I don't 
like the special handling of clones in the front end.

Jason