Project Ortega BCM5719 LLVM https://git.raptorcs.com/git/bcm5719-llvm/atom?h=meklort-10.0.1 2017-07-01T00:06:47+00:00 2017-07-01T00:06:47+00:00 Bruno Cardoso Lopes bruno.cardoso@gmail.com 2017-07-01T00:06:47+00:00 urn:sha1:df0ee34bc2523f11b907311670c776cb3de108c1 Allow ODR for ObjC/C in the sense that we won't keep more that one definition around (merge them). However, ensure the decl pass the structural compatibility check in C11 6.2.7/1, for that, reuse the structural equivalence checks used by the ASTImporter. Few other considerations: - Create error diagnostics for tag types mismatches and thread them into the structural equivalence checks. - Note that by doing this we only support redefinition between types that are considered "compatible types" by C. This is mixed approach of the suggestions discussed in http://lists.llvm.org/pipermail/cfe-dev/2017-March/053257.html Differential Revision: https://reviews.llvm.org/D31778 rdar://problem/31909368 llvm-svn: 306918