[cfe-commits] [PATCH/RFC] Extend TBAA to handle OpenCL address spaces

[Justin Holewinski]

The attached patch is a first attempt at extending TBAA to handle OpenCL
address spaces.  Different metadata nodes will be created for the same type
in different address spaces, giving later alias analysis passes the
opportunity to detect that objects in different address spaces cannot alias.
 Note that this is only valid for OpenCL, at the moment.

I would like to get some feedback on this patch.  If possible, I would like
to commit it, or a variant of it, before the branch tonight.

-- 

Thanks,

Justin Holewinski
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