efriedma added a comment. Identical to what? `__builtin_va_start` and `__builtin_va_end` specifically are weird because they're builtins which have a signature which can't be expressed in C. vprintf doesn't have that problem.
Builtins.def makes the relevant distinction already: a "BUILTIN" is a reserved identifier the user isn't allowed to redeclare, and a "LIBBUILTIN" is a library function which the compiler has special knowledge of. Repository: rC Clang https://reviews.llvm.org/D45383 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
