[llvm] r178722 - Debug Info: according to DWARF 2, FORM_ref_addr the same size as an address on

[Eric Christopher]

> Debug Info: according to DWARF 2, FORM_ref_addr the same size as an address on
> the target system.
>
> It was hard-coded to 4 bytes before. I can't get llvm to generate a
> ref_addr on a reasonably sized testing case.
>
> rdar://problem/13559431
>

Unfortunately our current version really isn't 2, there are many
dwarf4-isms in our current output. If you'd like to have a dwarf-2
compatibility mode then you'll need to submit a patch that delineates
that through all of compilation.

Please revert this patch for now and we can discuss this in this
thread if you'd like.

-eric