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Hello, I’m a newbie here, working on a project to enforce Control Flow Integrity (CFI) on programs compiled with LLVM. We’re using LLVM 3.3 so we can leverage poolalloc's dsa analysis. Ideally this will be as target-independent as possible, but our primary target is ARM. One of our passes requires inserting different i32 IDs at various points into the code we’re compiling. As far as I can