[LLVMdev] initial selection DAG

[listiges at arcor.de]

Hi,

I wonder how the initial selection DAG is built in the backends.
>From working backends I get:
----8<-------
Initial selection DAG: BB#0 'main:'
SelectionDAG has 18 nodes:
----8<-------
>From my (not working) backend I get:
----8<-------
Initial selection DAG: BB#0 'main:'
SelectionDAG has 15 nodes:
----8<-------
I miss three nodes and I wonder what do I have to implement to get at least the right initial selection DAG?

Do I have to define all instructions in the td files first?

Cheers,
Nico