The bitcode is basically just LLVM IR, is it not? And that encodes plenty of platform-specific behaviours. Though with both being little-endian and both LP64 ma

The bitcode is basically just LLVM IR, is it not? And that encodes plenty of platform-specific behaviours. Though with both being little-endian and both LP64 maybe there's less of an issue there? https://lists.llvm.org/pipermail/llvm-dev/2011-October/043724.html https://lists.llvm.org/pipermail/llvm-dev/2011-October/04372... is still my go-to pointer for the portability of LLVM IR (and bitcode); I don't know how Apple have dealt with the instability between LLVM releases of bitcode, but there's certainly plenty of potentially shortcomings if you want to compile for a different architecture.