cor3ntin wrote: The issue is that if we allow the preprocessor's state to differ across modules, then the resulting compiled units can be arbitrary (and subtly incompatible).
I wonder if a possible solution is to record which macros are used (ie, are expanded or appear in `#ifdef` / `defined`) And ONLY serialize the set of macros that are used. That way, if your program never uses `__SSP__`, for example, then your module would not be incompatible just because __SPP__ has been defined. I think that's worth pondering a bit more @Bigcheese https://github.com/llvm/llvm-project/pull/131569 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
