compilers under the hood

Hello folks,

I got a few people asking me to do this in the last Connect, so I've proposed a beginner session that explores gcc under the hood. The tentative plan I have for the talk is:

1. A high level view of how the source code is laid out 2. Front end, middle end, backend. This includes a high level introduction of GIMPLE and machine descriptions 3. A walkthrough of one or two simple programs and usage of diagnostic flags like -fdump-*

Additional suggestions are most welcome. Also, I was thinking maybe it would be good to have a llvm under the hood talk along similar lines. Thoughts?

Siddhesh