[llvm] r228180 - Utils: Resolve cycles under distinct MDNodes

[Hans Wennborg]

On Wed, Feb 4, 2015 at 11:44 AM, Duncan P. N. Exon Smith
<dexonsmith at apple.com> wrote:
> Author: dexonsmith
> Date: Wed Feb  4 13:44:34 2015
> New Revision: 228180
>
> URL: http://llvm.org/viewvc/llvm-project?rev=228180&view=rev
> Log:
> Utils: Resolve cycles under distinct MDNodes
>
> Track unresolved nodes under distinct `MDNode`s during `MapMetadata()`,
> and resolve them at the end.  Previously, these cycles wouldn't get
> resolved.

PR22456 reproduces on the 3.6 branch. Should we merge this fix?