Yes, dumping a huge diff of all the changes they've made to their internal LLVM project today would definitely be the right thing to do; I'd guess it's on the o

Yes, dumping a huge diff of all the changes they've made to their internal LLVM project today would definitely be the right thing to do; I'd guess it's on the order of at least hundreds of thousands of lines of code. What Apple are doing here is making sure it can be cleanly added to where LLVM has got to outside Apple, and not just saying "hey, you want our code? Well here it is, you try and make it work!" Yes this takes longer, but, as they say, it's the right way to do things with an open source project used commercially.