Help : Writting a LLVM pass

I’m working though, trying to write a very simple pass. I have followed all the steps mentioned in this document.But as mentioned I’m not getting any file named in Debug+Asserts/lib folder(There is a file named only). I have also tried to modify Hello.cpp in lib/Transforms/Hello but these changes doesn’t reflect anywhere. So how should i write my own pass and also tell me where to put that file??

Yes, the is the file you want. You can follow the document to run the opt and load the, then you can run the hello pass. If you want an own pass, you can follow the doc: