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...ureOrdering, used only by ATOMIC_CMP_SWAP nodes. Existing bitcode files would obviously be supported, and retain current semantics by BitcodeReader dropping the "release" part of any single ordering, and using the result as the "failure ordering" (as currently documented in the LanguageRef). I have attached initial patches for reference, but I'm not asking for thorough review at this stage. What do people think? Cheers. Tim. -------------- next part -------------- diff --git a/lib/CodeGen/CGAtomic.cpp b/lib/CodeGen/CGAtomic.cpp index cb92f9a..96595df 100644 --- a/lib/CodeGen/...