I’d like to try out link-time optimization in my project, but that project is a framework, which on iOS is built as a static library. I assumed the LTO option wouldn't affect building the library since there is no real link phase, so instead I enabled it in a separate target that builds an app that uses the library. I haven’t seen any speed improvements, though.
Now I’m wondering if LTO also affects the initial code generation, or maybe the metadata in the .o files. Does it need to be enabled for all targets that contribute code (.o files) to the binary being linked? (I can’t find any good docs on this feature, btw. Xcode’s doc browser turns up nothing at all. Google finds a WWDC 13 talk and some low-level info about LLVM, but nothing useful.) —Jens _______________________________________________ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list (Xcode-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/xcode-users/archive%40mail-archive.com This email sent to arch...@mail-archive.com
