[PATCH] MS ABI: Give thunks linkonce_odr linkage

Reid Kleckner rnk at google.com
Mon Jun 2 15:00:59 PDT 2014

It occurs to me that the linkage is still wrong for classes with thunks in anonymous namespaces.  It'd also be nice to have the thunks be discardable (i.e. linkonce_odr) in the common cases.

I think this is the right linkage computation:
- class has GVA_Internal linkage -> thunk is internal
- the thunk has a return adjustment -> thunk is weak_odr, to handle the evil corner case
- all other normal methods -> thunk is linkonce_odr


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