问题
I'm looking to code generate an llvm::Module from some C++ code.
Specifically, I will be mixing code generated by Clang and code from another source. Unfortunately, Clang's CodeGenModule class appears to insist on only generating a declaration into the Module if there is a definition which uses it.
How can I convince the CodeGenModule to generate these declarations anyway?
回答1:
Apparently, -femit-all-decls does not actually emit all the decls, so I had to modify Clang's source code to actually emit all the decls.
来源：https://stackoverflow.com/questions/14032496/how-can-i-code-generate-unused-declarations-with-clang