[llvm-commits] [patch] Mark linkonce_odr unnamed_addr constants hidden

[Rafael Espíndola]

Discussing a previous patch for LTO with Nick Kledzik I noticed that
part of it could be done more generally in GlobalOpt. The attached
patch marks as hidden inkonce_odr constants and functions that are
also unnamed_addr.

The linkonce_odr linkage guarantees that the symbol will be defined
anywhere it is needed. Being a constant and unnamed_addr guarantees
that we don't have to merge the symbols. Putting the two together
allows us to mark the symbol hidden.

Cheers,
Rafael
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