[LLVMdev] issue with writing a new pass

Rekha R rekharamapai at nitc.ac.in
Mon Sep 23 10:03:48 PDT 2013


I am newbie to LLVM. I wish to write an analysis pass. I followed the steps
mentioned in the site.
First I downloaded the source files to, say src, folder.
Then I built it in another folder, say build.
Everything went well.
Then I wrote a HelloWorld pass (as mentioned in the site). But then
encountered make errors.

I did a bit of googling and realised that the issue is with separate
directories for src and build.  To overcome this issue I came up with two
1. redo the whole process of compiling llvm source by having source and
build in the same directory.
2. Have two directories - src and build (as mentioned in the site) - write
your (new) pass in relevant file in src directory. Then after you run make
on this (new) pass, copy the library thus created in src/Debug+Asserts/lib
to build/Debug+Asserts/lib .

Would like to know which is a better solution? (Or suggest me a much better
than these.) My concerns are thus :
  - I am expecting to write a complex analysis pass which depends on the
existing passes.
  - This is a long term project. Hence would like to opt for a clean
solution than a quick-fix one.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130923/8e49a0cb/attachment.html>

More information about the llvm-dev mailing list