[LLVMdev] Passing specific register for an Instruction in target description files.

[Arsen Hakobyan]

Hi Tom,

Thank you for the information!

Actually I am using an approach you have suggested (if I am not
misunderstood). I am generating a new SDNode then copying all the options
and operands from the target SDNode replacing the operand with a new one but
already using the required register. All this stuff I am doing in DAGtoDAG
selection phase.

But I think the other approach suggested by Quentin could be also convenient
for my situation. I am not sure therefore I am just trying to get result
with this approach too. (for now I have to resolve some other issues to get
the final assembly code generated with this flow).

I will post my results here when I will finish successfully. 

But If there will be other suggestion: any ideas are welcomed!

Thanks,
Arsen



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