[LLVMdev] help with llvm.

[Abhijit Ray]

I am interested in implementing a compiler very much like llvm but
with very very modest goals.
I just want to have a intermediate format(machine independent)  which
can be used as input/output by different passes.( much like the
bytecode of llvm).

The only thing is I want it to be much simpler compared LLVM, say only
a very few basic optimizations. Other optimizations could be written
and implemented as plug and play but not part of the core compiler.

profiling should be helpful but not a necessity.

now to what help I need .. 
I would appreciate comments and pitfalls any implementor faced while
doing similar exercise.

wonder if the LLVM authors maintained some sort of logs of what they
did first and what they implemented last and what problems they faced.

pointers to helpful urls is also welcome.

Thanks,
Abhijit Ray