[llvm-dev] Should DISubprogram's scope be allowed to be null?

[Keno Fischer via llvm-dev]

In the patch comments I suggested adding a separate named metadata node to
root compile units that you want in the IR, but not emitted into the
binary. I assume that would work for you?

Duncan, do you like that approach?

On Mon, Jan 18, 2016 at 7:54 PM, Diego Novillo <dnovillo at google.com> wrote:

>
>
> On Fri, Jan 15, 2016 at 11:24 AM, David Blaikie <dblaikie at gmail.com>
> wrote:
>
>
>> Diego: To include line/col info for backend diagnostics, we produced
>> debug info but omitted the llvm.dbg.cu entry, right? So there are
>> subprogram debug info descriptions that are not referenced from a CU in
>> llvm.dbg.cu, yes?
>>
>
> Yes, that and for sample PGO.  Omitting llvm.dbg.cu prevents codegen from
> emitting all that debug info to the final binary.
>
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