[PATCH] Fix for #19973

[Chandler Carruth]

This patch has gone quite stale. I don't really understand why this particular change is the right one, I think it'll need some comments or other clarification in that respect before we accept it... If you end up wanting to continue working on this, try to do that, update the patch, and re-add me so I can take a look.


http://reviews.llvm.org/D4156

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