[LLVMdev] adde/addc

[Richard Pennington]

Evan Cheng wrote:
> Legalizer will expand arithmetics using addc and adde. Is it not  
> working for you? It works fine on x86, you can take a look how it's  
> done.
> 
> Evan

The x86 has a carry bit, my target doesn't.

It's not clear to me how I would specify the use of a general purpose 
register to contain the calculated carry in the current adde/addc scheme.

-Rich