Parsing and Modifying LLVM IR code

Question

I want to read (parse) LLVM IR code (which is saved in a text file) and add some of my own code to it. I need some example of doing this, that is, how this is done by using

Answer 1

The easiest way to do this is to look at one of the existing tools and steal code from it. In this case, you might want to look at the source for llc. It can take either a bitcode or .ll file as input. You can modify the input file any way you want and then write out the file using something similar to the code in llvm-dis if you want a text file.