[llvm-dev] How to identify if a function is external?

[Alberto Barbaro via llvm-dev]

Hi,
can anyone suggest me the best way to identify when I encounter an
instruction if the called function is an external one like "atol" or "atoi"
or if it was declared inside the project I have compiled?

Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190225/9be6ac4f/attachment.html>