Summary
While we could spend a lot more time describing TableGen and its backends, we believe this chapter gave you enough material for you to get started in this space. Also, while understanding how a TableGen backend works can be satisfying, it is not required to write an LLVM backend. Hence, you just learned the basic skills that are necessary to write the inputs of these backends.
At this point, you may not feel comfortable writing records for a specific backend or know how the TableGen output of a backend fits into the LLVM infrastructure, and this is expected. You will grow more confident and accumulate this knowledge in the respective chapters when targeting these backends. However, now, you should feel confident looking at TableGen files (.td), and although you may not understand what the records are meant for, you should be able to predict what their content is.
In conclusion, you learned the following in this chapter:
- What TableGen is and the general principle...
