[llvm] r228180 - Utils: Resolve cycles under distinct MDNodes
Duncan P. N. Exon Smith
dexonsmith at apple.com
Wed Feb 4 13:02:28 PST 2015
> On 2015-Feb-04, at 13:00, Hans Wennborg <hans at chromium.org> wrote:
> 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
>> 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
> PR22456 reproduces on the 3.6 branch. Should we merge this fix?
Yes we should, but it doesn't merge cleanly since `MapMetadata()` has
been essentially rewritten since then.
I'm just compiling a fix now. I'll let you know when I'm done.
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