[llvm] r273443 - [codeview] Defer emission of all referenced complete records

[Reid Kleckner via llvm-commits]

On Fri, Jul 8, 2016 at 2:35 PM, David Blaikie <dblaikie at gmail.com> wrote:
>
> Does this make debug info larger by emitting forward declarations for
> every type, even when they aren't necessary? (this would certainly happen
> if we did this in DWARF emission - so just wondering how it compares). Any
> idea how much of a penalty that is for CV size?
>

CodeView always has forward declarations for all record types, and they are
used to avoid cycles in the type graph:
http://llvm.org/docs/SourceLevelDebugging.html#format-background
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