[llvm-dev] [RFC] Generate Debug Information for Labels in Function

[Reid Kleckner via llvm-dev]

On Fri, Mar 30, 2018 at 9:39 AM Adrian Prantl <aprantl at apple.com> wrote:

> I'm really sorry for not realizing this yesterday, but the problems
> pertaining to inlining made me realize that your original design with the
> dbg.label intrinsic might actually be a better approach especially when
> considering optimized code. We will get inlining support for free because
> it is just another instruction and it can deal with more than one label at
> the same address. It looks a bit more complicated in unoptimized code, but
> that seems like a small price to pay.
>
> We just need to make sure that the backend doesn't get confused when loop
> unrolling duplicates a dbg.label but that should be doable.
>

+10, it should be an intrinsic.
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