aprantl added a comment. After thinking about this some more, I think it should be safe to use the global module index as a negative cache like in this example. The conditions under which a module is rebuilt should not affect the contents, and if the module were out-of-date it would have been rebuilt anyway. I will see if I can track down why the builtin macros make it into the module's identifier table. We already know that they are being marked incorrectly as FromAST, but I do not yet understand why.
https://reviews.llvm.org/D35923 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
