[LLVMdev] Inserting nodes into SelectionDAG (X86)

[Dale Johannesen]

On Jul 1, 2009, at 2:22 PMPDT, Dan Gohman wrote:

>> Ops.push_back(DAG.getConstant(1, MVT::i32));
>> Chain = DAG.getNode(ISD::ADD, DAG.getVTList(MVT::Other, MVT::i32),
>> &Ops[0], Ops.size());
>>
>> Isn't that the way how it is supposed to work?
>
> ADD does not use a chain, so there's no chain operand, or
> MVT::Other result for it in an ADD node.

You might want to look at SelectionDAGNodes.h, that has some  
(informal) description of what operands and results the nodes have.